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authorLinus Torvalds <torvalds@linux-foundation.org>2008-04-18 18:02:35 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-18 18:02:35 -0700
commit334d094504c2fe1c44211ecb49146ae6bca8c321 (patch)
treed3c0f68e4b9f8e3d2ccc39e7dfe5de0534a5fad9 /drivers/net/wireless/b43
parentd1a4be630fb068f251d64b62919f143c49ca8057 (diff)
parentd1643d24c61b725bef399cc1cf2944b4c9c23177 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.26
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.26: (1090 commits) [NET]: Fix and allocate less memory for ->priv'less netdevices [IPV6]: Fix dangling references on error in fib6_add(). [NETLABEL]: Fix NULL deref in netlbl_unlabel_staticlist_gen() if ifindex not found [PKT_SCHED]: Fix datalen check in tcf_simp_init(). [INET]: Uninline the __inet_inherit_port call. [INET]: Drop the inet_inherit_port() call. SCTP: Initialize partial_bytes_acked to 0, when all of the data is acked. [netdrvr] forcedeth: internal simplifications; changelog removal phylib: factor out get_phy_id from within get_phy_device PHY: add BCM5464 support to broadcom PHY driver cxgb3: Fix __must_check warning with dev_dbg. tc35815: Statistics cleanup natsemi: fix MMIO for PPC 44x platforms [TIPC]: Cleanup of TIPC reference table code [TIPC]: Optimized initialization of TIPC reference table [TIPC]: Remove inlining of reference table locking routines e1000: convert uint16_t style integers to u16 ixgb: convert uint16_t style integers to u16 sb1000.c: make const arrays static sb1000.c: stop inlining largish static functions ...
Diffstat (limited to 'drivers/net/wireless/b43')
-rw-r--r--drivers/net/wireless/b43/Kconfig18
-rw-r--r--drivers/net/wireless/b43/Makefile5
-rw-r--r--drivers/net/wireless/b43/b43.h195
-rw-r--r--drivers/net/wireless/b43/dma.c440
-rw-r--r--drivers/net/wireless/b43/dma.h14
-rw-r--r--drivers/net/wireless/b43/main.c1030
-rw-r--r--drivers/net/wireless/b43/main.h11
-rw-r--r--drivers/net/wireless/b43/nphy.c1
-rw-r--r--drivers/net/wireless/b43/nphy.h40
-rw-r--r--drivers/net/wireless/b43/pcmcia.c10
-rw-r--r--drivers/net/wireless/b43/pio.c842
-rw-r--r--drivers/net/wireless/b43/pio.h220
-rw-r--r--drivers/net/wireless/b43/sysfs.c89
-rw-r--r--drivers/net/wireless/b43/wa.c45
-rw-r--r--drivers/net/wireless/b43/xmit.c206
-rw-r--r--drivers/net/wireless/b43/xmit.h44
16 files changed, 2369 insertions, 841 deletions
diff --git a/drivers/net/wireless/b43/Kconfig b/drivers/net/wireless/b43/Kconfig
index 8bc4bc4c330..f51b2d9b085 100644
--- a/drivers/net/wireless/b43/Kconfig
+++ b/drivers/net/wireless/b43/Kconfig
@@ -62,6 +62,14 @@ config B43_PCMCIA
If unsure, say N.
+# Data transfers to the device via PIO
+# This is only needed on PCMCIA devices. All others can do DMA properly.
+config B43_PIO
+ bool
+ depends on B43 && (B43_PCMCIA || B43_FORCE_PIO)
+ select SSB_BLOCKIO
+ default y
+
config B43_NPHY
bool "Pre IEEE 802.11n support (BROKEN)"
depends on B43 && EXPERIMENTAL && BROKEN
@@ -94,3 +102,13 @@ config B43_DEBUG
Say Y, if you want to find out why the driver does not
work for you.
+
+config B43_FORCE_PIO
+ bool "Force usage of PIO instead of DMA"
+ depends on B43 && B43_DEBUG
+ ---help---
+ This will disable DMA and always enable PIO instead.
+
+ Say N!
+ This is only for debugging the PIO engine code. You do
+ _NOT_ want to enable this.
diff --git a/drivers/net/wireless/b43/Makefile b/drivers/net/wireless/b43/Makefile
index ac1329dba04..8c52b0b9862 100644
--- a/drivers/net/wireless/b43/Makefile
+++ b/drivers/net/wireless/b43/Makefile
@@ -1,13 +1,14 @@
b43-y += main.o
b43-y += tables.o
-b43-y += tables_nphy.o
+b43-$(CONFIG_B43_NPHY) += tables_nphy.o
b43-y += phy.o
-b43-y += nphy.o
+b43-$(CONFIG_B43_NPHY) += nphy.o
b43-y += sysfs.o
b43-y += xmit.o
b43-y += lo.o
b43-y += wa.o
b43-y += dma.o
+b43-$(CONFIG_B43_PIO) += pio.o
b43-$(CONFIG_B43_RFKILL) += rfkill.o
b43-$(CONFIG_B43_LEDS) += leds.o
b43-$(CONFIG_B43_PCMCIA) += pcmcia.o
diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h
index f13346ba9dd..eff2a158a41 100644
--- a/drivers/net/wireless/b43/b43.h
+++ b/drivers/net/wireless/b43/b43.h
@@ -75,6 +75,23 @@
#define B43_MMIO_DMA64_BASE4 0x300
#define B43_MMIO_DMA64_BASE5 0x340
+/* PIO on core rev < 11 */
+#define B43_MMIO_PIO_BASE0 0x300
+#define B43_MMIO_PIO_BASE1 0x310
+#define B43_MMIO_PIO_BASE2 0x320
+#define B43_MMIO_PIO_BASE3 0x330
+#define B43_MMIO_PIO_BASE4 0x340
+#define B43_MMIO_PIO_BASE5 0x350
+#define B43_MMIO_PIO_BASE6 0x360
+#define B43_MMIO_PIO_BASE7 0x370
+/* PIO on core rev >= 11 */
+#define B43_MMIO_PIO11_BASE0 0x200
+#define B43_MMIO_PIO11_BASE1 0x240
+#define B43_MMIO_PIO11_BASE2 0x280
+#define B43_MMIO_PIO11_BASE3 0x2C0
+#define B43_MMIO_PIO11_BASE4 0x300
+#define B43_MMIO_PIO11_BASE5 0x340
+
#define B43_MMIO_PHY_VER 0x3E0
#define B43_MMIO_PHY_RADIO 0x3E2
#define B43_MMIO_PHY0 0x3E6
@@ -94,11 +111,14 @@
#define B43_MMIO_GPIO_MASK 0x49E
#define B43_MMIO_TSF_CFP_START_LOW 0x604
#define B43_MMIO_TSF_CFP_START_HIGH 0x606
+#define B43_MMIO_TSF_CFP_PRETBTT 0x612
#define B43_MMIO_TSF_0 0x632 /* core rev < 3 only */
#define B43_MMIO_TSF_1 0x634 /* core rev < 3 only */
#define B43_MMIO_TSF_2 0x636 /* core rev < 3 only */
#define B43_MMIO_TSF_3 0x638 /* core rev < 3 only */
#define B43_MMIO_RNG 0x65A
+#define B43_MMIO_IFSCTL 0x688 /* Interframe space control */
+#define B43_MMIO_IFSCTL_USE_EDCF 0x0004
#define B43_MMIO_POWERUP_DELAY 0x6A8
/* SPROM boardflags_lo values */
@@ -144,7 +164,8 @@ enum {
#define B43_SHM_SH_PHYTYPE 0x0052 /* PHY type */
#define B43_SHM_SH_ANTSWAP 0x005C /* Antenna swap threshold */
#define B43_SHM_SH_HOSTFLO 0x005E /* Hostflags for ucode options (low) */
-#define B43_SHM_SH_HOSTFHI 0x0060 /* Hostflags for ucode options (high) */
+#define B43_SHM_SH_HOSTFMI 0x0060 /* Hostflags for ucode options (middle) */
+#define B43_SHM_SH_HOSTFHI 0x0062 /* Hostflags for ucode options (high) */
#define B43_SHM_SH_RFATT 0x0064 /* Current radio attenuation value */
#define B43_SHM_SH_RADAR 0x0066 /* Radar register */
#define B43_SHM_SH_PHYTXNOI 0x006E /* PHY noise directly after TX (lower 8bit only) */
@@ -232,31 +253,41 @@ enum {
#define B43_MMIO_RADIO_HWENABLED_LO_MASK (1 << 4)
/* HostFlags. See b43_hf_read/write() */
-#define B43_HF_ANTDIVHELP 0x00000001 /* ucode antenna div helper */
-#define B43_HF_SYMW 0x00000002 /* G-PHY SYM workaround */
-#define B43_HF_RXPULLW 0x00000004 /* RX pullup workaround */
-#define B43_HF_CCKBOOST 0x00000008 /* 4dB CCK power boost (exclusive with OFDM boost) */
-#define B43_HF_BTCOEX 0x00000010 /* Bluetooth coexistance */
-#define B43_HF_GDCW 0x00000020 /* G-PHY DV canceller filter bw workaround */
-#define B43_HF_OFDMPABOOST 0x00000040 /* Enable PA gain boost for OFDM */
-#define B43_HF_ACPR 0x00000080 /* Disable for Japan, channel 14 */
-#define B43_HF_EDCF 0x00000100 /* on if WME and MAC suspended */
-#define B43_HF_TSSIRPSMW 0x00000200 /* TSSI reset PSM ucode workaround */
-#define B43_HF_DSCRQ 0x00000400 /* Disable slow clock request in ucode */
-#define B43_HF_ACIW 0x00000800 /* ACI workaround: shift bits by 2 on PHY CRS */
-#define B43_HF_2060W 0x00001000 /* 2060 radio workaround */
-#define B43_HF_RADARW 0x00002000 /* Radar workaround */
-#define B43_HF_USEDEFKEYS 0x00004000 /* Enable use of default keys */
-#define B43_HF_BT4PRIOCOEX 0x00010000 /* Bluetooth 2-priority coexistance */
-#define B43_HF_FWKUP 0x00020000 /* Fast wake-up ucode */
-#define B43_HF_VCORECALC 0x00040000 /* Force VCO recalculation when powering up synthpu */
-#define B43_HF_PCISCW 0x00080000 /* PCI slow clock workaround */
-#define B43_HF_4318TSSI 0x00200000 /* 4318 TSSI */
-#define B43_HF_FBCMCFIFO 0x00400000 /* Flush bcast/mcast FIFO immediately */
-#define B43_HF_HWPCTL 0x00800000 /* Enable hardwarre power control */
-#define B43_HF_BTCOEXALT 0x01000000 /* Bluetooth coexistance in alternate pins */
-#define B43_HF_TXBTCHECK 0x02000000 /* Bluetooth check during transmission */
-#define B43_HF_SKCFPUP 0x04000000 /* Skip CFP update */
+#define B43_HF_ANTDIVHELP 0x000000000001ULL /* ucode antenna div helper */
+#define B43_HF_SYMW 0x000000000002ULL /* G-PHY SYM workaround */
+#define B43_HF_RXPULLW 0x000000000004ULL /* RX pullup workaround */
+#define B43_HF_CCKBOOST 0x000000000008ULL /* 4dB CCK power boost (exclusive with OFDM boost) */
+#define B43_HF_BTCOEX 0x000000000010ULL /* Bluetooth coexistance */
+#define B43_HF_GDCW 0x000000000020ULL /* G-PHY DC canceller filter bw workaround */
+#define B43_HF_OFDMPABOOST 0x000000000040ULL /* Enable PA gain boost for OFDM */
+#define B43_HF_ACPR 0x000000000080ULL /* Disable for Japan, channel 14 */
+#define B43_HF_EDCF 0x000000000100ULL /* on if WME and MAC suspended */
+#define B43_HF_TSSIRPSMW 0x000000000200ULL /* TSSI reset PSM ucode workaround */
+#define B43_HF_20IN40IQW 0x000000000200ULL /* 20 in 40 MHz I/Q workaround (rev >= 13 only) */
+#define B43_HF_DSCRQ 0x000000000400ULL /* Disable slow clock request in ucode */
+#define B43_HF_ACIW 0x000000000800ULL /* ACI workaround: shift bits by 2 on PHY CRS */
+#define B43_HF_2060W 0x000000001000ULL /* 2060 radio workaround */
+#define B43_HF_RADARW 0x000000002000ULL /* Radar workaround */
+#define B43_HF_USEDEFKEYS 0x000000004000ULL /* Enable use of default keys */
+#define B43_HF_AFTERBURNER 0x000000008000ULL /* Afterburner enabled */
+#define B43_HF_BT4PRIOCOEX 0x000000010000ULL /* Bluetooth 4-priority coexistance */
+#define B43_HF_FWKUP 0x000000020000ULL /* Fast wake-up ucode */
+#define B43_HF_VCORECALC 0x000000040000ULL /* Force VCO recalculation when powering up synthpu */
+#define B43_HF_PCISCW 0x000000080000ULL /* PCI slow clock workaround */
+#define B43_HF_4318TSSI 0x000000200000ULL /* 4318 TSSI */
+#define B43_HF_FBCMCFIFO 0x000000400000ULL /* Flush bcast/mcast FIFO immediately */
+#define B43_HF_HWPCTL 0x000000800000ULL /* Enable hardwarre power control */
+#define B43_HF_BTCOEXALT 0x000001000000ULL /* Bluetooth coexistance in alternate pins */
+#define B43_HF_TXBTCHECK 0x000002000000ULL /* Bluetooth check during transmission */
+#define B43_HF_SKCFPUP 0x000004000000ULL /* Skip CFP update */
+#define B43_HF_N40W 0x000008000000ULL /* N PHY 40 MHz workaround (rev >= 13 only) */
+#define B43_HF_ANTSEL 0x000020000000ULL /* Antenna selection (for testing antenna div.) */
+#define B43_HF_BT3COEXT 0x000020000000ULL /* Bluetooth 3-wire coexistence (rev >= 13 only) */
+#define B43_HF_BTCANT 0x000040000000ULL /* Bluetooth coexistence (antenna mode) (rev >= 13 only) */
+#define B43_HF_ANTSELEN 0x000100000000ULL /* Antenna selection enabled (rev >= 13 only) */
+#define B43_HF_ANTSELMODE 0x000200000000ULL /* Antenna selection mode (rev >= 13 only) */
+#define B43_HF_MLADVW 0x001000000000ULL /* N PHY ML ADV workaround (rev >= 13 only) */
+#define B43_HF_PR45960W 0x080000000000ULL /* PR 45960 workaround (rev >= 13 only) */
/* MacFilter offsets. */
#define B43_MACFILTER_SELF 0x0000
@@ -380,7 +411,6 @@ enum {
#define B43_IRQ_ALL 0xFFFFFFFF
#define B43_IRQ_MASKTEMPLATE (B43_IRQ_MAC_SUSPENDED | \
- B43_IRQ_BEACON | \
B43_IRQ_TBTT_INDI | \
B43_IRQ_ATIM_END | \
B43_IRQ_PMQ | \
@@ -429,7 +459,6 @@ enum {
};
struct b43_dmaring;
-struct b43_pioqueue;
/* The firmware file header */
#define B43_FW_TYPE_UCODE 'u'
@@ -458,20 +487,13 @@ struct b43_iv {
} __attribute__((__packed__));
-#define B43_PHYMODE(phytype) (1 << (phytype))
-#define B43_PHYMODE_A B43_PHYMODE(B43_PHYTYPE_A)
-#define B43_PHYMODE_B B43_PHYMODE(B43_PHYTYPE_B)
-#define B43_PHYMODE_G B43_PHYMODE(B43_PHYTYPE_G)
-
struct b43_phy {
- /* Possible PHYMODEs on this PHY */
- u8 possible_phymodes;
+ /* Band support flags. */
+ bool supports_2ghz;
+ bool supports_5ghz;
+
/* GMODE bit enabled? */
bool gmode;
- /* Possible ieee80211 subsystem hwmodes for this PHY.
- * Which mode is selected, depends on thr GMODE enabled bit */
-#define B43_MAX_PHYHWMODES 2
- struct ieee80211_hw_mode hwmodes[B43_MAX_PHYHWMODES];
/* Analog Type */
u8 analog;
@@ -583,15 +605,27 @@ struct b43_phy {
/* Data structures for DMA transmission, per 80211 core. */
struct b43_dma {
- struct b43_dmaring *tx_ring0;
- struct b43_dmaring *tx_ring1;
- struct b43_dmaring *tx_ring2;
- struct b43_dmaring *tx_ring3;
- struct b43_dmaring *tx_ring4;
- struct b43_dmaring *tx_ring5;
-
- struct b43_dmaring *rx_ring0;
- struct b43_dmaring *rx_ring3; /* only available on core.rev < 5 */
+ struct b43_dmaring *tx_ring_AC_BK; /* Background */
+ struct b43_dmaring *tx_ring_AC_BE; /* Best Effort */
+ struct b43_dmaring *tx_ring_AC_VI; /* Video */
+ struct b43_dmaring *tx_ring_AC_VO; /* Voice */
+ struct b43_dmaring *tx_ring_mcast; /* Multicast */
+
+ struct b43_dmaring *rx_ring;
+};
+
+struct b43_pio_txqueue;
+struct b43_pio_rxqueue;
+
+/* Data structures for PIO transmission, per 80211 core. */
+struct b43_pio {
+ struct b43_pio_txqueue *tx_queue_AC_BK; /* Background */
+ struct b43_pio_txqueue *tx_queue_AC_BE; /* Best Effort */
+ struct b43_pio_txqueue *tx_queue_AC_VI; /* Video */
+ struct b43_pio_txqueue *tx_queue_AC_VO; /* Voice */
+ struct b43_pio_txqueue *tx_queue_mcast; /* Multicast */
+
+ struct b43_pio_rxqueue *rx_queue;
};
/* Context information for a noise calculation (Link Quality). */
@@ -617,6 +651,35 @@ struct b43_key {
u8 algorithm;
};
+/* SHM offsets to the QOS data structures for the 4 different queues. */
+#define B43_QOS_PARAMS(queue) (B43_SHM_SH_EDCFQ + \
+ (B43_NR_QOSPARAMS * sizeof(u16) * (queue)))
+#define B43_QOS_BACKGROUND B43_QOS_PARAMS(0)
+#define B43_QOS_BESTEFFORT B43_QOS_PARAMS(1)
+#define B43_QOS_VIDEO B43_QOS_PARAMS(2)
+#define B43_QOS_VOICE B43_QOS_PARAMS(3)
+
+/* QOS parameter hardware data structure offsets. */
+#define B43_NR_QOSPARAMS 22
+enum {
+ B43_QOSPARAM_TXOP = 0,
+ B43_QOSPARAM_CWMIN,
+ B43_QOSPARAM_CWMAX,
+ B43_QOSPARAM_CWCUR,
+ B43_QOSPARAM_AIFS,
+ B43_QOSPARAM_BSLOTS,
+ B43_QOSPARAM_REGGAP,
+ B43_QOSPARAM_STATUS,
+};
+
+/* QOS parameters for a queue. */
+struct b43_qos_params {
+ /* The QOS parameters */
+ struct ieee80211_tx_queue_params p;
+ /* Does this need to get uploaded to hardware? */
+ bool need_hw_update;
+};
+
struct b43_wldev;
/* Data structure for the WLAN parts (802.11 cores) of the b43 chip. */
@@ -667,8 +730,16 @@ struct b43_wl {
/* The beacon we are currently using (AP or IBSS mode).
* This beacon stuff is protected by the irq_lock. */
struct sk_buff *current_beacon;
+ struct ieee80211_tx_control beacon_txctl;
bool beacon0_uploaded;
bool beacon1_uploaded;
+ struct work_struct beacon_update_trigger;
+
+ /* The current QOS parameters for the 4 queues.
+ * This is protected by the irq_lock. */
+ struct b43_qos_params qos_params[4];
+ /* Workqueue for updating QOS parameters in hardware. */
+ struct work_struct qos_update_work;
};
/* In-memory representation of a cached microcode file. */
@@ -727,7 +798,6 @@ struct b43_wldev {
bool bad_frames_preempt; /* Use "Bad Frames Preemption" (default off) */
bool dfq_valid; /* Directed frame queue valid (IBSS PS mode, ATIM) */
- bool short_preamble; /* TRUE, if short preamble is enabled. */
bool short_slot; /* TRUE, if short slot timing is enabled. */
bool radio_hw_enable; /* saved state of radio hardware enabled state */
bool suspend_in_progress; /* TRUE, if we are in a suspend/resume cycle */
@@ -735,8 +805,15 @@ struct b43_wldev {
/* PHY/Radio device. */
struct b43_phy phy;
- /* DMA engines. */
- struct b43_dma dma;
+ union {
+ /* DMA engines. */
+ struct b43_dma dma;
+ /* PIO engines. */
+ struct b43_pio pio;
+ };
+ /* Use b43_using_pio_transfers() to check whether we are using
+ * DMA or PIO data transfers. */
+ bool __using_pio_transfers;
/* Various statistics about the physical device. */
struct b43_stats stats;
@@ -820,6 +897,22 @@ static inline void b43_write32(struct b43_wldev *dev, u16 offset, u32 value)
ssb_write32(dev->dev, offset, value);
}
+static inline bool b43_using_pio_transfers(struct b43_wldev *dev)
+{
+#ifdef CONFIG_B43_PIO
+ return dev->__using_pio_transfers;
+#else
+ return 0;
+#endif
+}
+
+#ifdef CONFIG_B43_FORCE_PIO
+# define B43_FORCE_PIO 1
+#else
+# define B43_FORCE_PIO 0
+#endif
+
+
/* Message printing */
void b43info(struct b43_wl *wl, const char *fmt, ...)
__attribute__ ((format(printf, 2, 3)));
diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c
index 48e912487b1..21c886a9a1d 100644
--- a/drivers/net/wireless/b43/dma.c
+++ b/drivers/net/wireless/b43/dma.c
@@ -38,6 +38,7 @@
#include <linux/delay.h>
#include <linux/skbuff.h>
#include <linux/etherdevice.h>
+#include <asm/div64.h>
/* 32bit DMA ops. */
@@ -291,52 +292,6 @@ static inline int request_slot(struct b43_dmaring *ring)
return slot;
}
-/* Mac80211-queue to b43-ring mapping */
-static struct b43_dmaring *priority_to_txring(struct b43_wldev *dev,
- int queue_priority)
-{
- struct b43_dmaring *ring;
-
-/*FIXME: For now we always run on TX-ring-1 */
- return dev->dma.tx_ring1;
-
- /* 0 = highest priority */
- switch (queue_priority) {
- default:
- B43_WARN_ON(1);
- /* fallthrough */
- case 0:
- ring = dev->dma.tx_ring3;
- break;
- case 1:
- ring = dev->dma.tx_ring2;
- break;
- case 2:
- ring = dev->dma.tx_ring1;
- break;
- case 3:
- ring = dev->dma.tx_ring0;
- break;
- }
-
- return ring;
-}
-
-/* b43-ring to mac80211-queue mapping */
-static inline int txring_to_priority(struct b43_dmaring *ring)
-{
- static const u8 idx_to_prio[] = { 3, 2, 1, 0, };
- unsigned int index;
-
-/*FIXME: have only one queue, for now */
- return 0;
-
- index = ring->index;
- if (B43_WARN_ON(index >= ARRAY_SIZE(idx_to_prio)))
- index = 0;
- return idx_to_prio[index];
-}
-
static u16 b43_dmacontroller_base(enum b43_dmatype type, int controller_idx)
{
static const u16 map64[] = {
@@ -596,7 +551,6 @@ static int setup_rx_descbuffer(struct b43_dmaring *ring,
struct b43_dmadesc_meta *meta, gfp_t gfp_flags)
{
struct b43_rxhdr_fw4 *rxhdr;
- struct b43_hwtxstatus *txstat;
dma_addr_t dmaaddr;
struct sk_buff *skb;
@@ -632,8 +586,6 @@ static int setup_rx_descbuffer(struct b43_dmaring *ring,
rxhdr = (struct b43_rxhdr_fw4 *)(skb->data);
rxhdr->frame_len = 0;
- txstat = (struct b43_hwtxstatus *)(skb->data);
- txstat->cookie = 0;
return 0;
}
@@ -822,6 +774,18 @@ static u64 supported_dma_mask(struct b43_wldev *dev)
return DMA_30BIT_MASK;
}
+static enum b43_dmatype dma_mask_to_engine_type(u64 dmamask)
+{
+ if (dmamask == DMA_30BIT_MASK)
+ return B43_DMA_30BIT;
+ if (dmamask == DMA_32BIT_MASK)
+ return B43_DMA_32BIT;
+ if (dmamask == DMA_64BIT_MASK)
+ return B43_DMA_64BIT;
+ B43_WARN_ON(1);
+ return B43_DMA_30BIT;
+}
+
/* Main initialization function. */
static
struct b43_dmaring *b43_setup_dmaring(struct b43_wldev *dev,
@@ -937,16 +901,52 @@ struct b43_dmaring *b43_setup_dmaring(struct b43_wldev *dev,
goto out;
}
+#define divide(a, b) ({ \
+ typeof(a) __a = a; \
+ do_div(__a, b); \
+ __a; \
+ })
+
+#define modulo(a, b) ({ \
+ typeof(a) __a = a; \
+ do_div(__a, b); \
+ })
+
/* Main cleanup function. */
-static void b43_destroy_dmaring(struct b43_dmaring *ring)
+static void b43_destroy_dmaring(struct b43_dmaring *ring,
+ const char *ringname)
{
if (!ring)
return;
- b43dbg(ring->dev->wl, "DMA-%u 0x%04X (%s) max used slots: %d/%d\n",
- (unsigned int)(ring->type),
- ring->mmio_base,
- (ring->tx) ? "TX" : "RX", ring->max_used_slots, ring->nr_slots);
+#ifdef CONFIG_B43_DEBUG
+ {
+ /* Print some statistics. */
+ u64 failed_packets = ring->nr_failed_tx_packets;
+ u64 succeed_packets = ring->nr_succeed_tx_packets;
+ u64 nr_packets = failed_packets + succeed_packets;
+ u64 permille_failed = 0, average_tries = 0;
+
+ if (nr_packets)
+ permille_failed = divide(failed_packets * 1000, nr_packets);
+ if (nr_packets)
+ average_tries = divide(ring->nr_total_packet_tries * 100, nr_packets);
+
+ b43dbg(ring->dev->wl, "DMA-%u %s: "
+ "Used slots %d/%d, Failed frames %llu/%llu = %llu.%01llu%%, "
+ "Average tries %llu.%02llu\n",
+ (unsigned int)(ring->type), ringname,
+ ring->max_used_slots,
+ ring->nr_slots,
+ (unsigned long long)failed_packets,
+ (unsigned long long)nr_packets,
+ (unsigned long long)divide(permille_failed, 10),
+ (unsigned long long)modulo(permille_failed, 10),
+ (unsigned long long)divide(average_tries, 100),
+ (unsigned long long)modulo(average_tries, 100));
+ }
+#endif /* DEBUG */
+
/* Device IRQs are disabled prior entering this function,
* so no need to take care of concurrency with rx handler stuff.
*/
@@ -959,51 +959,36 @@ static void b43_destroy_dmaring(struct b43_dmaring *ring)
kfree(ring);
}
+#define destroy_ring(dma, ring) do { \
+ b43_destroy_dmaring((dma)->ring, __stringify(ring)); \
+ (dma)->ring = NULL; \
+ } while (0)
+
void b43_dma_free(struct b43_wldev *dev)
{
- struct b43_dma *dma = &dev->dma;
+ struct b43_dma *dma;
- b43_destroy_dmaring(dma->rx_ring3);
- dma->rx_ring3 = NULL;
- b43_destroy_dmaring(dma->rx_ring0);
- dma->rx_ring0 = NULL;
-
- b43_destroy_dmaring(dma->tx_ring5);
- dma->tx_ring5 = NULL;
- b43_destroy_dmaring(dma->tx_ring4);
- dma->tx_ring4 = NULL;
- b43_destroy_dmaring(dma->tx_ring3);
- dma->tx_ring3 = NULL;
- b43_destroy_dmaring(dma->tx_ring2);
- dma->tx_ring2 = NULL;
- b43_destroy_dmaring(dma->tx_ring1);
- dma->tx_ring1 = NULL;
- b43_destroy_dmaring(dma->tx_ring0);
- dma->tx_ring0 = NULL;
+ if (b43_using_pio_transfers(dev))
+ return;
+ dma = &dev->dma;
+
+ destroy_ring(dma, rx_ring);
+ destroy_ring(dma, tx_ring_AC_BK);
+ destroy_ring(dma, tx_ring_AC_BE);
+ destroy_ring(dma, tx_ring_AC_VI);
+ destroy_ring(dma, tx_ring_AC_VO);
+ destroy_ring(dma, tx_ring_mcast);
}
int b43_dma_init(struct b43_wldev *dev)
{
struct b43_dma *dma = &dev->dma;
- struct b43_dmaring *ring;
int err;
u64 dmamask;
enum b43_dmatype type;
dmamask = supported_dma_mask(dev);
- switch (dmamask) {
- default:
- B43_WARN_ON(1);
- case DMA_30BIT_MASK:
- type = B43_DMA_30BIT;
- break;
- case DMA_32BIT_MASK:
- type = B43_DMA_32BIT;
- break;
- case DMA_64BIT_MASK:
- type = B43_DMA_64BIT;
- break;
- }
+ type = dma_mask_to_engine_type(dmamask);
err = ssb_dma_set_mask(dev->dev, dmamask);
if (err) {
b43err(dev->wl, "The machine/kernel does not support "
@@ -1015,83 +1000,57 @@ int b43_dma_init(struct b43_wldev *dev)
err = -ENOMEM;
/* setup TX DMA channels. */
- ring = b43_setup_dmaring(dev, 0, 1, type);
- if (!ring)
+ dma->tx_ring_AC_BK = b43_setup_dmaring(dev, 0, 1, type);
+ if (!dma->tx_ring_AC_BK)
goto out;
- dma->tx_ring0 = ring;
- ring = b43_setup_dmaring(dev, 1, 1, type);
- if (!ring)
- goto err_destroy_tx0;
- dma->tx_ring1 = ring;
+ dma->tx_ring_AC_BE = b43_setup_dmaring(dev, 1, 1, type);
+ if (!dma->tx_ring_AC_BE)
+ goto err_destroy_bk;
- ring = b43_setup_dmaring(dev, 2, 1, type);
- if (!ring)
- goto err_destroy_tx1;
- dma->tx_ring2 = ring;
+ dma->tx_ring_AC_VI = b43_setup_dmaring(dev, 2, 1, type);
+ if (!dma->tx_ring_AC_VI)
+ goto err_destroy_be;
- ring = b43_setup_dmaring(dev, 3, 1, type);
- if (!ring)
- goto err_destroy_tx2;
- dma->tx_ring3 = ring;
+ dma->tx_ring_AC_VO = b43_setup_dmaring(dev, 3, 1, type);
+ if (!dma->tx_ring_AC_VO)
+ goto err_destroy_vi;
- ring = b43_setup_dmaring(dev, 4, 1, type);
- if (!ring)
- goto err_destroy_tx3;
- dma->tx_ring4 = ring;
+ dma->tx_ring_mcast = b43_setup_dmaring(dev, 4, 1, type);
+ if (!dma->tx_ring_mcast)
+ goto err_destroy_vo;
- ring = b43_setup_dmaring(dev, 5, 1, type);
- if (!ring)
- goto err_destroy_tx4;
- dma->tx_ring5 = ring;
+ /* setup RX DMA channel. */
+ dma->rx_ring = b43_setup_dmaring(dev, 0, 0, type);
+ if (!dma->rx_ring)
+ goto err_destroy_mcast;
- /* setup RX DMA channels. */
- ring = b43_setup_dmaring(dev, 0, 0, type);
- if (!ring)
- goto err_destroy_tx5;
- dma->rx_ring0 = ring;
-
- if (dev->dev->id.revision < 5) {
- ring = b43_setup_dmaring(dev, 3, 0, type);
- if (!ring)
- goto err_destroy_rx0;
- dma->rx_ring3 = ring;
- }
+ /* No support for the TX status DMA ring. */
+ B43_WARN_ON(dev->dev->id.revision < 5);
b43dbg(dev->wl, "%u-bit DMA initialized\n",
(unsigned int)type);
err = 0;
- out:
+out:
return err;
- err_destroy_rx0:
- b43_destroy_dmaring(dma->rx_ring0);
- dma->rx_ring0 = NULL;
- err_destroy_tx5:
- b43_destroy_dmaring(dma->tx_ring5);
- dma->tx_ring5 = NULL;
- err_destroy_tx4:
- b43_destroy_dmaring(dma->tx_ring4);
- dma->tx_ring4 = NULL;
- err_destroy_tx3:
- b43_destroy_dmaring(dma->tx_ring3);
- dma->tx_ring3 = NULL;
- err_destroy_tx2:
- b43_destroy_dmaring(dma->tx_ring2);
- dma->tx_ring2 = NULL;
- err_destroy_tx1:
- b43_destroy_dmaring(dma->tx_ring1);
- dma->tx_ring1 = NULL;
- err_destroy_tx0:
- b43_destroy_dmaring(dma->tx_ring0);
- dma->tx_ring0 = NULL;
- goto out;
+err_destroy_mcast:
+ destroy_ring(dma, tx_ring_mcast);
+err_destroy_vo:
+ destroy_ring(dma, tx_ring_AC_VO);
+err_destroy_vi:
+ destroy_ring(dma, tx_ring_AC_VI);
+err_destroy_be:
+ destroy_ring(dma, tx_ring_AC_BE);
+err_destroy_bk:
+ destroy_ring(dma, tx_ring_AC_BK);
+ return err;
}
/* Generate a cookie for the TX header. */
static u16 generate_cookie(struct b43_dmaring *ring, int slot)
{
- u16 cookie = 0x1000;
+ u16 cookie;
/* Use the upper 4 bits of the cookie as
* DMA controller ID and store the slot number
@@ -1101,30 +1060,9 @@ static u16 generate_cookie(struct b43_dmaring *ring, int slot)
* It can also not be 0xFFFF because that is special
* for multicast frames.
*/
- switch (ring->index) {
- case 0:
- cookie = 0x1000;
- break;
- case 1:
- cookie = 0x2000;
- break;
- case 2:
- cookie = 0x3000;
- break;
- case 3:
- cookie = 0x4000;
- break;
- case 4:
- cookie = 0x5000;
- break;
- case 5:
- cookie = 0x6000;
- break;
- default:
- B43_WARN_ON(1);
- }
+ cookie = (((u16)ring->index + 1) << 12);
B43_WARN_ON(slot & ~0x0FFF);
- cookie |= (u16) slot;
+ cookie |= (u16)slot;
return cookie;
}
@@ -1138,22 +1076,19 @@ struct b43_dmaring *parse_cookie(struct b43_wldev *dev, u16 cookie, int *slot)
switch (cookie & 0xF000) {
case 0x1000:
- ring = dma->tx_ring0;
+ ring = dma->tx_ring_AC_BK;
break;
case 0x2000:
- ring = dma->tx_ring1;
+ ring = dma->tx_ring_AC_BE;
break;
case 0x3000:
- ring = dma->tx_ring2;
+ ring = dma->tx_ring_AC_VI;
break;
case 0x4000:
- ring = dma->tx_ring3;
+ ring = dma->tx_ring_AC_VO;
break;
case 0x5000:
- ring = dma->tx_ring4;
- break;
- case 0x6000:
- ring = dma->tx_ring5;
+ ring = dma->tx_ring_mcast;
break;
default:
B43_WARN_ON(1);
@@ -1180,7 +1115,6 @@ static int dma_tx_fragment(struct b43_dmaring *ring,
size_t hdrsize = b43_txhdr_size(ring->dev);
#define SLOTS_PER_PACKET 2
- B43_WARN_ON(skb_shinfo(skb)->nr_frags);
old_top_slot = ring->current_slot;
old_used_slots = ring->used_slots;
@@ -1285,6 +1219,37 @@ static inline int should_inject_overflow(struct b43_dmaring *ring)
return 0;
}
+/* Static mapping of mac80211's queues (priorities) to b43 DMA rings. */
+static struct b43_dmaring * select_ring_by_priority(struct b43_wldev *dev,
+ u8 queue_prio)
+{
+ struct b43_dmaring *ring;
+
+ if (b43_modparam_qos) {
+ /* 0 = highest priority */
+ switch (queue_prio) {
+ default:
+ B43_WARN_ON(1);
+ /* fallthrough */
+ case 0:
+ ring = dev->dma.tx_ring_AC_VO;
+ break;
+ case 1:
+ ring = dev->dma.tx_ring_AC_VI;
+ break;
+ case 2:
+ ring = dev->dma.tx_ring_AC_BE;
+ break;
+ case 3:
+ ring = dev->dma.tx_ring_AC_BK;
+ break;
+ }
+ } else
+ ring = dev->dma.tx_ring_AC_BE;
+
+ return ring;
+}
+
int b43_dma_tx(struct b43_wldev *dev,
struct sk_buff *skb, struct ieee80211_tx_control *ctl)
{
@@ -1293,21 +1258,16 @@ int b43_dma_tx(struct b43_wldev *dev,
int err = 0;
unsigned long flags;
- if (unlikely(skb->len < 2 + 2 + 6)) {
- /* Too short, this can't be a valid frame. */
- return -EINVAL;
- }
-
hdr = (struct ieee80211_hdr *)skb->data;
if (ctl->flags & IEEE80211_TXCTL_SEND_AFTER_DTIM) {
/* The multicast ring will be sent after the DTIM */
- ring = dev->dma.tx_ring4;
+ ring = dev->dma.tx_ring_mcast;
/* Set the more-data bit. Ucode will clear it on
* the last frame for us. */
hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREDATA);
} else {
/* Decide by priority where to put this frame. */
- ring = priority_to_txring(dev, ctl->queue);
+ ring = select_ring_by_priority(dev, ctl->queue);
}
spin_lock_irqsave(&ring->lock, flags);
@@ -1322,6 +1282,11 @@ int b43_dma_tx(struct b43_wldev *dev,
* That would be a mac80211 bug. */
B43_WARN_ON(ring->stopped);
+ /* Assign the queue number to the ring (if not already done before)
+ * so TX status handling can use it. The queue to ring mapping is
+ * static, so we don't need to store it per frame. */
+ ring->queue_prio = ctl->queue;
+
err = dma_tx_fragment(ring, skb, ctl);
if (unlikely(err == -ENOKEY)) {
/* Drop this packet, as we don't have the encryption key
@@ -1338,7 +1303,7 @@ int b43_dma_tx(struct b43_wldev *dev,
if ((free_slots(ring) < SLOTS_PER_PACKET) ||
should_inject_overflow(ring)) {
/* This TX ring is full. */
- ieee80211_stop_queue(dev->wl->hw, txring_to_priority(ring));
+ ieee80211_stop_queue(dev->wl->hw, ctl->queue);
ring->stopped = 1;
if (b43_debug(dev, B43_DBG_DMAVERBOSE)) {
b43dbg(dev->wl, "Stopped TX ring %d\n", ring->index);
@@ -1359,6 +1324,7 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev,
struct b43_dmadesc_generic *desc;
struct b43_dmadesc_meta *meta;
int slot;
+ bool frame_succeed;
ring = parse_cookie(dev, status->cookie, &slot);
if (unlikely(!ring))
@@ -1385,18 +1351,15 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev,
* status of the transmission.
* Some fields of txstat are already filled in dma_tx().
*/
- if (status->acked) {
- meta->txstat.flags |= IEEE80211_TX_STATUS_ACK;
- } else {
- if (!(meta->txstat.control.flags
- & IEEE80211_TXCTL_NO_ACK))
- meta->txstat.excessive_retries = 1;
- }
- if (status->frame_count == 0) {
- /* The frame was not transmitted at all. */
- meta->txstat.retry_count = 0;
- } else
- meta->txstat.retry_count = status->frame_count - 1;
+ frame_succeed = b43_fill_txstatus_report(
+ &(meta->txstat), status);
+#ifdef CONFIG_B43_DEBUG
+ if (frame_succeed)
+ ring->nr_succeed_tx_packets++;
+ else
+ ring->nr_failed_tx_packets++;
+ ring->nr_total_packet_tries += status->frame_count;
+#endif /* DEBUG */
ieee80211_tx_status_irqsafe(dev->wl->hw, meta->skb,
&(meta->txstat));
/* skb is freed by ieee80211_tx_status_irqsafe() */
@@ -1418,7 +1381,7 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev,
dev->stats.last_tx = jiffies;
if (ring->stopped) {
B43_WARN_ON(free_slots(ring) < SLOTS_PER_PACKET);
- ieee80211_wake_queue(dev->wl->hw, txring_to_priority(ring));
+ ieee80211_wake_queue(dev->wl->hw, ring->queue_prio);
ring->stopped = 0;
if (b43_debug(dev, B43_DBG_DMAVERBOSE)) {
b43dbg(dev->wl, "Woke up TX ring %d\n", ring->index);
@@ -1439,7 +1402,7 @@ void b43_dma_get_tx_stats(struct b43_wldev *dev,
for (i = 0; i < nr_queues; i++) {
data = &(stats->data[i]);
- ring = priority_to_txring(dev, i);
+ ring = select_ring_by_priority(dev, i);
spin_lock_irqsave(&ring->lock, flags);
data->len = ring->used_slots / SLOTS_PER_PACKET;
@@ -1465,25 +1428,6 @@ static void dma_rx(struct b43_dmaring *ring, int *slot)
sync_descbuffer_for_cpu(ring, meta->dmaaddr, ring->rx_buffersize);
skb = meta->skb;
- if (ring->index == 3) {
- /* We received an xmit status. */
- struct b43_hwtxstatus *hw = (struct b43_hwtxstatus *)skb->data;
- int i = 0;
-
- while (hw->cookie == 0) {
- if (i > 100)
- break;
- i++;
- udelay(2);
- barrier();
- }
- b43_handle_hwtxstatus(ring->dev, hw);
- /* recycle the descriptor buffer. */
- sync_descbuffer_for_device(ring, meta->dmaaddr,
- ring->rx_buffersize);
-
- return;
- }
rxhdr = (struct b43_rxhdr_fw4 *)skb->data;
len = le16_to_cpu(rxhdr->frame_len);
if (len == 0) {
@@ -1540,7 +1484,7 @@ static void dma_rx(struct b43_dmaring *ring, int *slot)
skb_pull(skb, ring->frameoffset);
b43_rx(ring->dev, skb, rxhdr);
- drop:
+drop:
return;
}
@@ -1586,21 +1530,55 @@ static void b43_dma_tx_resume_ring(struct b43_dmaring *ring)
void b43_dma_tx_suspend(struct b43_wldev *dev)
{
b43_power_saving_ctl_bits(dev, B43_PS_AWAKE);
- b43_dma_tx_suspend_ring(dev->dma.tx_ring0);
- b43_dma_tx_suspend_ring(dev->dma.tx_ring1);
- b43_dma_tx_suspend_ring(dev->dma.tx_ring2);
- b43_dma_tx_suspend_ring(dev->dma.tx_ring3);
- b43_dma_tx_suspend_ring(dev->dma.tx_ring4);
- b43_dma_tx_suspend_ring(dev->dma.tx_ring5);
+ b43_dma_tx_suspend_ring(dev->dma.tx_ring_AC_BK);
+ b43_dma_tx_suspend_ring(dev->dma.tx_ring_AC_BE);
+ b43_dma_tx_suspend_ring(dev->dma.tx_ring_AC_VI);
+ b43_dma_tx_suspend_ring(dev->dma.tx_ring_AC_VO);
+ b43_dma_tx_suspend_ring(dev->dma.tx_ring_mcast);
}
void b43_dma_tx_resume(struct b43_wldev *dev)
{
- b43_dma_tx_resume_ring(dev->dma.tx_ring5);
- b43_dma_tx_resume_ring(dev->dma.tx_ring4);
- b43_dma_tx_resume_ring(dev->dma.tx_ring3);
- b43_dma_tx_resume_ring(dev->dma.tx_ring2);
- b43_dma_tx_resume_ring(dev->dma.tx_ring1);
- b43_dma_tx_resume_ring(dev->dma.tx_ring0);
+ b43_dma_tx_resume_ring(dev->dma.tx_ring_mcast);
+ b43_dma_tx_resume_ring(dev->dma.tx_ring_AC_VO);
+ b43_dma_tx_resume_ring(dev->dma.tx_ring_AC_VI);
+ b43_dma_tx_resume_ring(dev->dma.tx_ring_AC_BE);
+ b43_dma_tx_resume_ring(dev->dma.tx_ring_AC_BK);
b43_power_saving_ctl_bits(dev, 0);
}
+
+#ifdef CONFIG_B43_PIO
+static void direct_fifo_rx(struct b43_wldev *dev, enum b43_dmatype type,
+ u16 mmio_base, bool enable)
+{
+ u32 ctl;
+
+ if (type == B43_DMA_64BIT) {
+ ctl = b43_read32(dev, mmio_base + B43_DMA64_RXCTL);
+ ctl &= ~B43_DMA64_RXDIRECTFIFO;
+ if (enable)
+ ctl |= B43_DMA64_RXDIRECTFIFO;
+ b43_write32(dev, mmio_base + B43_DMA64_RXCTL, ctl);
+ } else {
+ ctl = b43_read32(dev, mmio_base + B43_DMA32_RXCTL);
+ ctl &= ~B43_DMA32_RXDIRECTFIFO;
+ if (enable)
+ ctl |= B43_DMA32_RXDIRECTFIFO;
+ b43_write32(dev, mmio_base + B43_DMA32_RXCTL, ctl);
+ }
+}
+
+/* Enable/Disable Direct FIFO Receive Mode (PIO) on a RX engine.
+ * This is called from PIO code, so DMA structures are not available. */
+void b43_dma_direct_fifo_rx(struct b43_wldev *dev,
+ unsigned int engine_index, bool enable)
+{
+ enum b43_dmatype type;
+ u16 mmio_base;
+
+ type = dma_mask_to_engine_type(supported_dma_mask(dev));
+
+ mmio_base = b43_dmacontroller_base(type, engine_index);
+ direct_fifo_rx(dev, type, mmio_base, enable);
+}
+#endif /* CONFIG_B43_PIO */
diff --git a/drivers/net/wireless/b43/dma.h b/drivers/net/wireless/b43/dma.h
index c0d6b69e650..20acf885dba 100644
--- a/drivers/net/wireless/b43/dma.h
+++ b/drivers/net/wireless/b43/dma.h
@@ -245,6 +245,9 @@ struct b43_dmaring {
enum b43_dmatype type;
/* Boolean. Is this ring stopped at ieee80211 level? */
bool stopped;
+ /* The QOS priority assigned to this ring. Only used for TX rings.
+ * This is the mac80211 "queue" value. */
+ u8 queue_prio;
/* Lock, only used for TX. */
spinlock_t lock;
struct b43_wldev *dev;
@@ -253,7 +256,13 @@ struct b43_dmaring {
int max_used_slots;
/* Last time we injected a ring overflow. */
unsigned long last_injected_overflow;
-#endif /* CONFIG_B43_DEBUG */
+ /* Statistics: Number of successfully transmitted packets */
+ u64 nr_succeed_tx_packets;
+ /* Statistics: Number of failed TX packets */
+ u64 nr_failed_tx_packets;
+ /* Statistics: Total number of TX plus all retries. */
+ u64 nr_total_packet_tries;
+#endif /* CONFIG_B43_DEBUG */
};
static inline u32 b43_dma_read(struct b43_dmaring *ring, u16 offset)
@@ -282,4 +291,7 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev,
void b43_dma_rx(struct b43_dmaring *ring);
+void b43_dma_direct_fifo_rx(struct b43_wldev *dev,
+ unsigned int engine_index, bool enable);
+
#endif /* B43_DMA_H_ */
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index c73a75b24cd..cf5c046c9fa 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -46,7 +46,9 @@
#include "main.h"
#include "debugfs.h"
#include "phy.h"
+#include "nphy.h"
#include "dma.h"
+#include "pio.h"
#include "sysfs.h"
#include "xmit.h"
#include "lo.h"
@@ -78,6 +80,11 @@ static int modparam_nohwcrypt;
module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444);
MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
+int b43_modparam_qos = 1;
+module_param_named(qos, b43_modparam_qos, int, 0444);
+MODULE_PARM_DESC(qos, "Enable QOS support (default on)");
+
+
static const struct ssb_device_id b43_ssb_tbl[] = {
SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 5),
SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 6),
@@ -96,25 +103,29 @@ MODULE_DEVICE_TABLE(ssb, b43_ssb_tbl);
* data in there. This data is the same for all devices, so we don't
* get concurrency issues */
#define RATETAB_ENT(_rateid, _flags) \
- { \
- .rate = B43_RATE_TO_BASE100KBPS(_rateid), \
- .val = (_rateid), \
- .val2 = (_rateid), \
- .flags = (_flags), \
+ { \
+ .bitrate = B43_RATE_TO_BASE100KBPS(_rateid), \
+ .hw_value = (_rateid), \
+ .flags = (_flags), \
}
+
+/*
+ * NOTE: When changing this, sync with xmit.c's
+ * b43_plcp_get_bitrate_idx_* functions!
+ */
static struct ieee80211_rate __b43_ratetable[] = {
- RATETAB_ENT(B43_CCK_RATE_1MB, IEEE80211_RATE_CCK),
- RATETAB_ENT(B43_CCK_RATE_2MB, IEEE80211_RATE_CCK_2),
- RATETAB_ENT(B43_CCK_RATE_5MB, IEEE80211_RATE_CCK_2),
- RATETAB_ENT(B43_CCK_RATE_11MB, IEEE80211_RATE_CCK_2),
- RATETAB_ENT(B43_OFDM_RATE_6MB, IEEE80211_RATE_OFDM),
- RATETAB_ENT(B43_OFDM_RATE_9MB, IEEE80211_RATE_OFDM),
- RATETAB_ENT(B43_OFDM_RATE_12MB, IEEE80211_RATE_OFDM),
- RATETAB_ENT(B43_OFDM_RATE_18MB, IEEE80211_RATE_OFDM),
- RATETAB_ENT(B43_OFDM_RATE_24MB, IEEE80211_RATE_OFDM),
- RATETAB_ENT(B43_OFDM_RATE_36MB, IEEE80211_RATE_OFDM),
- RATETAB_ENT(B43_OFDM_RATE_48MB, IEEE80211_RATE_OFDM),
- RATETAB_ENT(B43_OFDM_RATE_54MB, IEEE80211_RATE_OFDM),
+ RATETAB_ENT(B43_CCK_RATE_1MB, 0),
+ RATETAB_ENT(B43_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE),
+ RATETAB_ENT(B43_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE),
+ RATETAB_ENT(B43_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE),
+ RATETAB_ENT(B43_OFDM_RATE_6MB, 0),
+ RATETAB_ENT(B43_OFDM_RATE_9MB, 0),
+ RATETAB_ENT(B43_OFDM_RATE_12MB, 0),
+ RATETAB_ENT(B43_OFDM_RATE_18MB, 0),
+ RATETAB_ENT(B43_OFDM_RATE_24MB, 0),
+ RATETAB_ENT(B43_OFDM_RATE_36MB, 0),
+ RATETAB_ENT(B43_OFDM_RATE_48MB, 0),
+ RATETAB_ENT(B43_OFDM_RATE_54MB, 0),
};
#define b43_a_ratetable (__b43_ratetable + 4)
@@ -124,53 +135,144 @@ static struct ieee80211_rate __b43_ratetable[] = {
#define b43_g_ratetable (__b43_ratetable + 0)
#define b43_g_ratetable_size 12
-#define CHANTAB_ENT(_chanid, _freq) \
- { \
- .chan = (_chanid), \
- .freq = (_freq), \
- .val = (_chanid), \
- .flag = IEEE80211_CHAN_W_SCAN | \
- IEEE80211_CHAN_W_ACTIVE_SCAN | \
- IEEE80211_CHAN_W_IBSS, \
- .power_level = 0xFF, \
- .antenna_max = 0xFF, \
- }
+#define CHAN4G(_channel, _freq, _flags) { \
+ .band = IEEE80211_BAND_2GHZ, \
+ .center_freq = (_freq), \
+ .hw_value = (_channel), \
+ .flags = (_flags), \
+ .max_antenna_gain = 0, \
+ .max_power = 30, \
+}
static struct ieee80211_channel b43_2ghz_chantable[] = {
- CHANTAB_ENT(1, 2412),
- CHANTAB_ENT(2, 2417),
- CHANTAB_ENT(3, 2422),
- CHANTAB_ENT(4, 2427),
- CHANTAB_ENT(5, 2432),
- CHANTAB_ENT(6, 2437),
- CHANTAB_ENT(7, 2442),
- CHANTAB_ENT(8, 2447),
- CHANTAB_ENT(9, 2452),
- CHANTAB_ENT(10, 2457),
- CHANTAB_ENT(11, 2462),
- CHANTAB_ENT(12, 2467),
- CHANTAB_ENT(13, 2472),
- CHANTAB_ENT(14, 2484),
+ CHAN4G(1, 2412, 0),
+ CHAN4G(2, 2417, 0),
+ CHAN4G(3, 2422, 0),
+ CHAN4G(4, 2427, 0),
+ CHAN4G(5, 2432, 0),
+ CHAN4G(6, 2437, 0),
+ CHAN4G(7, 2442, 0),
+ CHAN4G(8, 2447, 0),
+ CHAN4G(9, 2452, 0),
+ CHAN4G(10, 2457, 0),
+ CHAN4G(11, 2462, 0),
+ CHAN4G(12, 2467, 0),
+ CHAN4G(13, 2472, 0),
+ CHAN4G(14, 2484, 0),
};
-#define b43_2ghz_chantable_size ARRAY_SIZE(b43_2ghz_chantable)
-
-#if 0
-static struct ieee80211_channel b43_5ghz_chantable[] = {
- CHANTAB_ENT(36, 5180),
- CHANTAB_ENT(40, 5200),
- CHANTAB_ENT(44, 5220),
- CHANTAB_ENT(48, 5240),
- CHANTAB_ENT(52, 5260),
- CHANTAB_ENT(56, 5280),
- CHANTAB_ENT(60, 5300),
- CHANTAB_ENT(64, 5320),
- CHANTAB_ENT(149, 5745),
- CHANTAB_ENT(153, 5765),
- CHANTAB_ENT(157, 5785),
- CHANTAB_ENT(161, 5805),
- CHANTAB_ENT(165, 5825),
+#undef CHAN4G
+
+#define CHAN5G(_channel, _flags) { \
+ .band = IEEE80211_BAND_5GHZ, \
+ .center_freq = 5000 + (5 * (_channel)), \
+ .hw_value = (_channel), \
+ .flags = (_flags), \
+ .max_antenna_gain = 0, \
+ .max_power = 30, \
+}
+static struct ieee80211_channel b43_5ghz_nphy_chantable[] = {
+ CHAN5G(32, 0), CHAN5G(34, 0),
+ CHAN5G(36, 0), CHAN5G(38, 0),
+ CHAN5G(40, 0), CHAN5G(42, 0),
+ CHAN5G(44, 0), CHAN5G(46, 0),
+ CHAN5G(48, 0), CHAN5G(50, 0),
+ CHAN5G(52, 0), CHAN5G(54, 0),
+ CHAN5G(56, 0), CHAN5G(58, 0),
+ CHAN5G(60, 0), CHAN5G(62, 0),
+ CHAN5G(64, 0), CHAN5G(66, 0),
+ CHAN5G(68, 0), CHAN5G(70, 0),
+ CHAN5G(72, 0), CHAN5G(74, 0),
+ CHAN5G(76, 0), CHAN5G(78, 0),
+ CHAN5G(80, 0), CHAN5G(82, 0),
+ CHAN5G(84, 0), CHAN5G(86, 0),
+ CHAN5G(88, 0), CHAN5G(90, 0),
+ CHAN5G(92, 0), CHAN5G(94, 0),
+ CHAN5G(96, 0), CHAN5G(98, 0),
+ CHAN5G(100, 0), CHAN5G(102, 0),
+ CHAN5G(104, 0), CHAN5G(106, 0),
+ CHAN5G(108, 0), CHAN5G(110, 0),
+ CHAN5G(112, 0), CHAN5G(114, 0),
+ CHAN5G(116, 0), CHAN5G(118, 0),
+ CHAN5G(120, 0), CHAN5G(122, 0),
+ CHAN5G(124, 0), CHAN5G(126, 0),
+ CHAN5G(128, 0), CHAN5G(130, 0),
+ CHAN5G(132, 0), CHAN5G(134, 0),
+ CHAN5G(136, 0), CHAN5G(138, 0),
+ CHAN5G(140, 0), CHAN5G(142, 0),
+ CHAN5G(144, 0), CHAN5G(145, 0),
+ CHAN5G(146, 0), CHAN5G(147, 0),
+ CHAN5G(148, 0), CHAN5G(149, 0),
+ CHAN5G(150, 0), CHAN5G(151, 0),
+ CHAN5G(152, 0), CHAN5G(153, 0),
+ CHAN5G(154, 0), CHAN5G(155, 0),
+ CHAN5G(156, 0), CHAN5G(157, 0),
+ CHAN5G(158, 0), CHAN5G(159, 0),
+ CHAN5G(160, 0), CHAN5G(161, 0),
+ CHAN5G(162, 0), CHAN5G(163, 0),
+ CHAN5G(164, 0), CHAN5G(165, 0),
+ CHAN5G(166, 0), CHAN5G(168, 0),
+ CHAN5G(170, 0), CHAN5G(172, 0),
+ CHAN5G(174, 0), CHAN5G(176, 0),
+ CHAN5G(178, 0), CHAN5G(180, 0),
+ CHAN5G(182, 0), CHAN5G(184, 0),
+ CHAN5G(186, 0), CHAN5G(188, 0),
+ CHAN5G(190, 0), CHAN5G(192, 0),
+ CHAN5G(194, 0), CHAN5G(196, 0),
+ CHAN5G(198, 0), CHAN5G(200, 0),
+ CHAN5G(202, 0), CHAN5G(204, 0),
+ CHAN5G(206, 0), CHAN5G(208, 0),
+ CHAN5G(210, 0), CHAN5G(212, 0),
+ CHAN5G(214, 0), CHAN5G(216, 0),
+ CHAN5G(218, 0), CHAN5G(220, 0),
+ CHAN5G(222, 0), CHAN5G(224, 0),
+ CHAN5G(226, 0), CHAN5G(228, 0),
+};
+
+static struct ieee80211_channel b43_5ghz_aphy_chantable[] = {
+ CHAN5G(34, 0), CHAN5G(36, 0),
+ CHAN5G(38, 0), CHAN5G(40, 0),
+ CHAN5G(42, 0), CHAN5G(44, 0),
+ CHAN5G(46, 0), CHAN5G(48, 0),
+ CHAN5G(52, 0), CHAN5G(56, 0),
+ CHAN5G(60, 0), CHAN5G(64, 0),
+ CHAN5G(100, 0), CHAN5G(104, 0),
+ CHAN5G(108, 0), CHAN5G(112, 0),
+ CHAN5G(116, 0), CHAN5G(120, 0),
+ CHAN5G(124, 0), CHAN5G(128, 0),
+ CHAN5G(132, 0), CHAN5G(136, 0),
+ CHAN5G(140, 0), CHAN5G(149, 0),
+ CHAN5G(153, 0), CHAN5G(157, 0),
+ CHAN5G(161, 0), CHAN5G(165, 0),
+ CHAN5G(184, 0), CHAN5G(188, 0),
+ CHAN5G(192, 0), CHAN5G(196, 0),
+ CHAN5G(200, 0), CHAN5G(204, 0),
+ CHAN5G(208, 0), CHAN5G(212, 0),
+ CHAN5G(216, 0),
+};
+#undef CHAN5G
+
+static struct ieee80211_supported_band b43_band_5GHz_nphy = {
+ .band = IEEE80211_BAND_5GHZ,
+ .channels = b43_5ghz_nphy_chantable,
+ .n_channels = ARRAY_SIZE(b43_5ghz_nphy_chantable),
+ .bitrates = b43_a_ratetable,
+ .n_bitrates = b43_a_ratetable_size,
+};
+
+static struct ieee80211_supported_band b43_band_5GHz_aphy = {
+ .band = IEEE80211_BAND_5GHZ,
+ .channels = b43_5ghz_aphy_chantable,
+ .n_channels = ARRAY_SIZE(b43_5ghz_aphy_chantable),
+ .bitrates = b43_a_ratetable,
+ .n_bitrates = b43_a_ratetable_size,
+};
+
+static struct ieee80211_supported_band b43_band_2GHz = {
+ .band = IEEE80211_BAND_2GHZ,
+ .channels = b43_2ghz_chantable,
+ .n_channels = ARRAY_SIZE(b43_2ghz_chantable),
+ .bitrates = b43_g_ratetable,
+ .n_bitrates = b43_g_ratetable_size,
};
-#define b43_5ghz_chantable_size ARRAY_SIZE(b43_5ghz_chantable)
-#endif
static void b43_wireless_core_exit(struct b43_wldev *dev);
static int b43_wireless_core_init(struct b43_wldev *dev);
@@ -370,24 +472,30 @@ out:
}
/* Read HostFlags */
-u32 b43_hf_read(struct b43_wldev * dev)
+u64 b43_hf_read(struct b43_wldev * dev)
{
- u32 ret;
+ u64 ret;
ret = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI);
ret <<= 16;
+ ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI);
+ ret <<= 16;
ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO);
return ret;
}
/* Write HostFlags */
-void b43_hf_write(struct b43_wldev *dev, u32 value)
+void b43_hf_write(struct b43_wldev *dev, u64 value)
{
- b43_shm_write16(dev, B43_SHM_SHARED,
- B43_SHM_SH_HOSTFLO, (value & 0x0000FFFF));
- b43_shm_write16(dev, B43_SHM_SHARED,
- B43_SHM_SH_HOSTFHI, ((value & 0xFFFF0000) >> 16));
+ u16 lo, mi, hi;
+
+ lo = (value & 0x00000000FFFFULL);
+ mi = (value & 0x0000FFFF0000ULL) >> 16;
+ hi = (value & 0xFFFF00000000ULL) >> 32;
+ b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO, lo);
+ b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI, mi);
+ b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI, hi);
}
void b43_tsf_read(struct b43_wldev *dev, u64 * tsf)
@@ -912,7 +1020,18 @@ void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags)
/* Turn the Analog ON/OFF */
static void b43_switch_analog(struct b43_wldev *dev, int on)
{
- b43_write16(dev, B43_MMIO_PHY0, on ? 0 : 0xF4);
+ switch (dev->phy.type) {
+ case B43_PHYTYPE_A:
+ case B43_PHYTYPE_G:
+ b43_write16(dev, B43_MMIO_PHY0, on ? 0 : 0xF4);
+ break;
+ case B43_PHYTYPE_N:
+ b43_phy_write(dev, B43_NPHY_AFECTL_OVER,
+ on ? 0 : 0x7FFF);
+ break;
+ default:
+ B43_WARN_ON(1);
+ }
}
void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags)
@@ -1162,22 +1281,107 @@ static void b43_write_template_common(struct b43_wldev *dev,
size + sizeof(struct b43_plcp_hdr6));
}
+/* Check if the use of the antenna that ieee80211 told us to
+ * use is possible. This will fall back to DEFAULT.
+ * "antenna_nr" is the antenna identifier we got from ieee80211. */
+u8 b43_ieee80211_antenna_sanitize(struct b43_wldev *dev,
+ u8 antenna_nr)
+{
+ u8 antenna_mask;
+
+ if (antenna_nr == 0) {
+ /* Zero means "use default antenna". That's always OK. */
+ return 0;
+ }
+
+ /* Get the mask of available antennas. */
+ if (dev->phy.gmode)
+ antenna_mask = dev->dev->bus->sprom.ant_available_bg;
+ else
+ antenna_mask = dev->dev->bus->sprom.ant_available_a;
+
+ if (!(antenna_mask & (1 << (antenna_nr - 1)))) {
+ /* This antenna is not available. Fall back to default. */
+ return 0;
+ }
+
+ return antenna_nr;
+}
+
+static int b43_antenna_from_ieee80211(struct b43_wldev *dev, u8 antenna)
+{
+ antenna = b43_ieee80211_antenna_sanitize(dev, antenna);
+ switch (antenna) {
+ case 0: /* default/diversity */
+ return B43_ANTENNA_DEFAULT;
+ case 1: /* Antenna 0 */
+ return B43_ANTENNA0;
+ case 2: /* Antenna 1 */
+ return B43_ANTENNA1;
+ case 3: /* Antenna 2 */
+ return B43_ANTENNA2;
+ case 4: /* Antenna 3 */
+ return B43_ANTENNA3;
+ default:
+ return B43_ANTENNA_DEFAULT;
+ }
+}
+
+/* Convert a b43 antenna number value to the PHY TX control value. */
+static u16 b43_antenna_to_phyctl(int antenna)
+{
+ switch (antenna) {
+ case B43_ANTENNA0:
+ return B43_TXH_PHY_ANT0;
+ case B43_ANTENNA1:
+ return B43_TXH_PHY_ANT1;
+ case B43_ANTENNA2:
+ return B43_TXH_PHY_ANT2;
+ case B43_ANTENNA3:
+ return B43_TXH_PHY_ANT3;
+ case B43_ANTENNA_AUTO:
+ return B43_TXH_PHY_ANT01AUTO;
+ }
+ B43_WARN_ON(1);
+ return 0;
+}
+
static void b43_write_beacon_template(struct b43_wldev *dev,
u16 ram_offset,
- u16 shm_size_offset, u8 rate)
+ u16 shm_size_offset)
{
unsigned int i, len, variable_len;
const struct ieee80211_mgmt *bcn;
const u8 *ie;
bool tim_found = 0;
+ unsigned int rate;
+ u16 ctl;
+ int antenna;
bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data);
len = min((size_t) dev->wl->current_beacon->len,
0x200 - sizeof(struct b43_plcp_hdr6));
+ rate = dev->wl->beacon_txctl.tx_rate->hw_value;
b43_write_template_common(dev, (const u8 *)bcn,
len, ram_offset, shm_size_offset, rate);
+ /* Write the PHY TX control parameters. */
+ antenna = b43_antenna_from_ieee80211(dev,
+ dev->wl->beacon_txctl.antenna_sel_tx);
+ antenna = b43_antenna_to_phyctl(antenna);
+ ctl = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL);
+ /* We can't send beacons with short preamble. Would get PHY errors. */
+ ctl &= ~B43_TXH_PHY_SHORTPRMBL;
+ ctl &= ~B43_TXH_PHY_ANT;
+ ctl &= ~B43_TXH_PHY_ENC;
+ ctl |= antenna;
+ if (b43_is_cck_rate(rate))
+ ctl |= B43_TXH_PHY_ENC_CCK;
+ else
+ ctl |= B43_TXH_PHY_ENC_OFDM;
+ b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl);
+
/* Find the position of the TIM and the DTIM_period value
* and write them to SHM. */
ie = bcn->u.beacon.variable;
@@ -1218,21 +1422,23 @@ static void b43_write_beacon_template(struct b43_wldev *dev,
b43warn(dev->wl, "Did not find a valid TIM IE in "
"the beacon template packet. AP or IBSS operation "
"may be broken.\n");
- }
+ } else
+ b43dbg(dev->wl, "Updated beacon template\n");
}
static void b43_write_probe_resp_plcp(struct b43_wldev *dev,
- u16 shm_offset, u16 size, u8 rate)
+ u16 shm_offset, u16 size,
+ struct ieee80211_rate *rate)
{
struct b43_plcp_hdr4 plcp;
u32 tmp;
__le16 dur;
plcp.data = 0;
- b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate);
+ b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate->hw_value);
dur = ieee80211_generic_frame_duration(dev->wl->hw,
dev->wl->vif, size,
- B43_RATE_TO_BASE100KBPS(rate));
+ rate);
/* Write PLCP in two parts and timing for packet transfer */
tmp = le32_to_cpu(plcp.data);
b43_shm_write16(dev, B43_SHM_SHARED, shm_offset, tmp & 0xFFFF);
@@ -1247,7 +1453,8 @@ static void b43_write_probe_resp_plcp(struct b43_wldev *dev,
* 3) Stripping TIM
*/
static const u8 * b43_generate_probe_resp(struct b43_wldev *dev,
- u16 *dest_size, u8 rate)
+ u16 *dest_size,
+ struct ieee80211_rate *rate)
{
const u8 *src_data;
u8 *dest_data;
@@ -1292,7 +1499,7 @@ static const u8 * b43_generate_probe_resp(struct b43_wldev *dev,
IEEE80211_STYPE_PROBE_RESP);
dur = ieee80211_generic_frame_duration(dev->wl->hw,
dev->wl->vif, *dest_size,
- B43_RATE_TO_BASE100KBPS(rate));
+ rate);
hdr->duration_id = dur;
return dest_data;
@@ -1300,7 +1507,8 @@ static const u8 * b43_generate_probe_resp(struct b43_wldev *dev,
static void b43_write_probe_resp_template(struct b43_wldev *dev,
u16 ram_offset,
- u16 shm_size_offset, u8 rate)
+ u16 shm_size_offset,
+ struct ieee80211_rate *rate)
{
const u8 *probe_resp_data;
u16 size;
@@ -1313,20 +1521,89 @@ static void b43_write_probe_resp_template(struct b43_wldev *dev,
/* Looks like PLCP headers plus packet timings are stored for
* all possible basic rates
*/
- b43_write_probe_resp_plcp(dev, 0x31A, size, B43_CCK_RATE_1MB);
- b43_write_probe_resp_plcp(dev, 0x32C, size, B43_CCK_RATE_2MB);
- b43_write_probe_resp_plcp(dev, 0x33E, size, B43_CCK_RATE_5MB);
- b43_write_probe_resp_plcp(dev, 0x350, size, B43_CCK_RATE_11MB);
+ b43_write_probe_resp_plcp(dev, 0x31A, size, &b43_b_ratetable[0]);
+ b43_write_probe_resp_plcp(dev, 0x32C, size, &b43_b_ratetable[1]);
+ b43_write_probe_resp_plcp(dev, 0x33E, size, &b43_b_ratetable[2]);
+ b43_write_probe_resp_plcp(dev, 0x350, size, &b43_b_ratetable[3]);
size = min((size_t) size, 0x200 - sizeof(struct b43_plcp_hdr6));
b43_write_template_common(dev, probe_resp_data,
- size, ram_offset, shm_size_offset, rate);
+ size, ram_offset, shm_size_offset,
+ rate->hw_value);
kfree(probe_resp_data);
}
+static void handle_irq_beacon(struct b43_wldev *dev)
+{
+ struct b43_wl *wl = dev->wl;
+ u32 cmd, beacon0_valid, beacon1_valid;
+
+ if (!b43_is_mode(wl, IEEE80211_IF_TYPE_AP))
+ return;
+
+ /* This is the bottom half of the asynchronous beacon update. */
+
+ /* Ignore interrupt in the future. */
+ dev->irq_savedstate &= ~B43_IRQ_BEACON;
+
+ cmd = b43_read32(dev, B43_MMIO_MACCMD);
+ beacon0_valid = (cmd & B43_MACCMD_BEACON0_VALID);
+ beacon1_valid = (cmd & B43_MACCMD_BEACON1_VALID);
+
+ /* Schedule interrupt manually, if busy. */
+ if (beacon0_valid && beacon1_valid) {
+ b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_BEACON);
+ dev->irq_savedstate |= B43_IRQ_BEACON;
+ return;
+ }
+
+ if (!beacon0_valid) {
+ if (!wl->beacon0_uploaded) {
+ b43_write_beacon_template(dev, 0x68, 0x18);
+ b43_write_probe_resp_template(dev, 0x268, 0x4A,
+ &__b43_ratetable[3]);
+ wl->beacon0_uploaded = 1;
+ }
+ cmd = b43_read32(dev, B43_MMIO_MACCMD);
+ cmd |= B43_MACCMD_BEACON0_VALID;
+ b43_write32(dev, B43_MMIO_MACCMD, cmd);
+ } else if (!beacon1_valid) {
+ if (!wl->beacon1_uploaded) {
+ b43_write_beacon_template(dev, 0x468, 0x1A);
+ wl->beacon1_uploaded = 1;
+ }
+ cmd = b43_read32(dev, B43_MMIO_MACCMD);
+ cmd |= B43_MACCMD_BEACON1_VALID;
+ b43_write32(dev, B43_MMIO_MACCMD, cmd);
+ }
+}
+
+static void b43_beacon_update_trigger_work(struct work_struct *work)
+{
+ struct b43_wl *wl = container_of(work, struct b43_wl,
+ beacon_update_trigger);
+ struct b43_wldev *dev;
+
+ mutex_lock(&wl->mutex);
+ dev = wl->current_dev;
+ if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED))) {
+ spin_lock_irq(&wl->irq_lock);
+ /* update beacon right away or defer to irq */
+ dev->irq_savedstate = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
+ handle_irq_beacon(dev);
+ /* The handler might have updated the IRQ mask. */
+ b43_write32(dev, B43_MMIO_GEN_IRQ_MASK,
+ dev->irq_savedstate);
+ mmiowb();
+ spin_unlock_irq(&wl->irq_lock);
+ }
+ mutex_unlock(&wl->mutex);
+}
+
/* Asynchronously update the packet templates in template RAM.
* Locking: Requires wl->irq_lock to be locked. */
-static void b43_update_templates(struct b43_wl *wl, struct sk_buff *beacon)
+static void b43_update_templates(struct b43_wl *wl, struct sk_buff *beacon,
+ const struct ieee80211_tx_control *txctl)
{
/* This is the top half of the ansynchronous beacon update.
* The bottom half is the beacon IRQ.
@@ -1337,8 +1614,10 @@ static void b43_update_templates(struct b43_wl *wl, struct sk_buff *beacon)
if (wl->current_beacon)
dev_kfree_skb_any(wl->current_beacon);
wl->current_beacon = beacon;
+ memcpy(&wl->beacon_txctl, txctl, sizeof(wl->beacon_txctl));
wl->beacon0_uploaded = 0;
wl->beacon1_uploaded = 0;
+ queue_work(wl->hw->workqueue, &wl->beacon_update_trigger);
}
static void b43_set_ssid(struct b43_wldev *dev, const u8 * ssid, u8 ssid_len)
@@ -1364,44 +1643,14 @@ static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int)
{
b43_time_lock(dev);
if (dev->dev->id.revision >= 3) {
- b43_write32(dev, 0x188, (beacon_int << 16));
+ b43_write32(dev, B43_MMIO_TSF_CFP_REP, (beacon_int << 16));
+ b43_write32(dev, B43_MMIO_TSF_CFP_START, (beacon_int << 10));
} else {
b43_write16(dev, 0x606, (beacon_int >> 6));
b43_write16(dev, 0x610, beacon_int);
}
b43_time_unlock(dev);
-}
-
-static void handle_irq_beacon(struct b43_wldev *dev)
-{
- struct b43_wl *wl = dev->wl;
- u32 cmd;
-
- if (!b43_is_mode(wl, IEEE80211_IF_TYPE_AP))
- return;
-
- /* This is the bottom half of the asynchronous beacon update. */
-
- cmd = b43_read32(dev, B43_MMIO_MACCMD);
- if (!(cmd & B43_MACCMD_BEACON0_VALID)) {
- if (!wl->beacon0_uploaded) {
- b43_write_beacon_template(dev, 0x68, 0x18,
- B43_CCK_RATE_1MB);
- b43_write_probe_resp_template(dev, 0x268, 0x4A,
- B43_CCK_RATE_11MB);
- wl->beacon0_uploaded = 1;
- }
- cmd |= B43_MACCMD_BEACON0_VALID;
- }
- if (!(cmd & B43_MACCMD_BEACON1_VALID)) {
- if (!wl->beacon1_uploaded) {
- b43_write_beacon_template(dev, 0x468, 0x1A,
- B43_CCK_RATE_1MB);
- wl->beacon1_uploaded = 1;
- }
- cmd |= B43_MACCMD_BEACON1_VALID;
- }
- b43_write32(dev, B43_MMIO_MACCMD, cmd);
+ b43dbg(dev->wl, "Set beacon interval to %u\n", beacon_int);
}
static void handle_irq_ucode_debug(struct b43_wldev *dev)
@@ -1483,12 +1732,15 @@ static void b43_interrupt_tasklet(struct b43_wldev *dev)
handle_irq_noise(dev);
/* Check the DMA reason registers for received data. */
- if (dma_reason[0] & B43_DMAIRQ_RX_DONE)
- b43_dma_rx(dev->dma.rx_ring0);
- if (dma_reason[3] & B43_DMAIRQ_RX_DONE)
- b43_dma_rx(dev->dma.rx_ring3);
+ if (dma_reason[0] & B43_DMAIRQ_RX_DONE) {
+ if (b43_using_pio_transfers(dev))
+ b43_pio_rx(dev->pio.rx_queue);
+ else
+ b43_dma_rx(dev->dma.rx_ring);
+ }
B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE);
B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE);
+ B43_WARN_ON(dma_reason[3] & B43_DMAIRQ_RX_DONE);
B43_WARN_ON(dma_reason[4] & B43_DMAIRQ_RX_DONE);
B43_WARN_ON(dma_reason[5] & B43_DMAIRQ_RX_DONE);
@@ -2045,7 +2297,7 @@ static void b43_gpio_cleanup(struct b43_wldev *dev)
}
/* http://bcm-specs.sipsolutions.net/EnableMac */
-void b43_mac_enable(struct b43_wldev *dev)
+static void b43_mac_enable(struct b43_wldev *dev)
{
dev->mac_suspended--;
B43_WARN_ON(dev->mac_suspended < 0);
@@ -2068,7 +2320,7 @@ void b43_mac_enable(struct b43_wldev *dev)
}
/* http://bcm-specs.sipsolutions.net/SuspendMAC */
-void b43_mac_suspend(struct b43_wldev *dev)
+static void b43_mac_suspend(struct b43_wldev *dev)
{
int i;
u32 tmp;
@@ -2091,6 +2343,13 @@ void b43_mac_suspend(struct b43_wldev *dev)
& ~B43_MACCTL_ENABLED);
/* force pci to flush the write */
b43_read32(dev, B43_MMIO_MACCTL);
+ for (i = 35; i; i--) {
+ tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
+ if (tmp & B43_IRQ_MAC_SUSPENDED)
+ goto out;
+ udelay(10);
+ }
+ /* Hm, it seems this will take some time. Use msleep(). */
for (i = 40; i; i--) {
tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
if (tmp & B43_IRQ_MAC_SUSPENDED)
@@ -2196,38 +2455,28 @@ static void b43_rate_memory_init(struct b43_wldev *dev)
}
}
+/* Set the default values for the PHY TX Control Words. */
+static void b43_set_phytxctl_defaults(struct b43_wldev *dev)
+{
+ u16 ctl = 0;
+
+ ctl |= B43_TXH_PHY_ENC_CCK;
+ ctl |= B43_TXH_PHY_ANT01AUTO;
+ ctl |= B43_TXH_PHY_TXPWR;
+
+ b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl);
+ b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, ctl);
+ b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, ctl);
+}
+
/* Set the TX-Antenna for management frames sent by firmware. */
static void b43_mgmtframe_txantenna(struct b43_wldev *dev, int antenna)
{
- u16 ant = 0;
+ u16 ant;
u16 tmp;
- switch (antenna) {
- case B43_ANTENNA0:
- ant |= B43_TXH_PHY_ANT0;
- break;
- case B43_ANTENNA1:
- ant |= B43_TXH_PHY_ANT1;
- break;
- case B43_ANTENNA2:
- ant |= B43_TXH_PHY_ANT2;
- break;
- case B43_ANTENNA3:
- ant |= B43_TXH_PHY_ANT3;
- break;
- case B43_ANTENNA_AUTO:
- ant |= B43_TXH_PHY_ANT01AUTO;
- break;
- default:
- B43_WARN_ON(1);
- }
-
- /* FIXME We also need to set the other flags of the PHY control field somewhere. */
+ ant = b43_antenna_to_phyctl(antenna);
- /* For Beacons */
- tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL);
- tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
- b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, tmp);
/* For ACK/CTS */
tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL);
tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
@@ -2589,22 +2838,199 @@ static int b43_op_tx(struct ieee80211_hw *hw,
struct b43_wldev *dev = wl->current_dev;
int err = -ENODEV;
+ if (unlikely(skb->len < 2 + 2 + 6)) {
+ /* Too short, this can't be a valid frame. */
+ return -EINVAL;
+ }
+ B43_WARN_ON(skb_shinfo(skb)->nr_frags);
+
if (unlikely(!dev))
goto out;
if (unlikely(b43_status(dev) < B43_STAT_STARTED))
goto out;
- /* DMA-TX is done without a global lock. */
- err = b43_dma_tx(dev, skb, ctl);
+ /* TX is done without a global lock. */
+ if (b43_using_pio_transfers(dev))
+ err = b43_pio_tx(dev, skb, ctl);
+ else
+ err = b43_dma_tx(dev, skb, ctl);
out:
if (unlikely(err))
return NETDEV_TX_BUSY;
return NETDEV_TX_OK;
}
+/* Locking: wl->irq_lock */
+static void b43_qos_params_upload(struct b43_wldev *dev,
+ const struct ieee80211_tx_queue_params *p,
+ u16 shm_offset)
+{
+ u16 params[B43_NR_QOSPARAMS];
+ int cw_min, cw_max, aifs, bslots, tmp;
+ unsigned int i;
+
+ const u16 aCWmin = 0x0001;
+ const u16 aCWmax = 0x03FF;
+
+ /* Calculate the default values for the parameters, if needed. */
+ switch (shm_offset) {
+ case B43_QOS_VOICE:
+ aifs = (p->aifs == -1) ? 2 : p->aifs;
+ cw_min = (p->cw_min == 0) ? ((aCWmin + 1) / 4 - 1) : p->cw_min;
+ cw_max = (p->cw_max == 0) ? ((aCWmin + 1) / 2 - 1) : p->cw_max;
+ break;
+ case B43_QOS_VIDEO:
+ aifs = (p->aifs == -1) ? 2 : p->aifs;
+ cw_min = (p->cw_min == 0) ? ((aCWmin + 1) / 2 - 1) : p->cw_min;
+ cw_max = (p->cw_max == 0) ? aCWmin : p->cw_max;
+ break;
+ case B43_QOS_BESTEFFORT:
+ aifs = (p->aifs == -1) ? 3 : p->aifs;
+ cw_min = (p->cw_min == 0) ? aCWmin : p->cw_min;
+ cw_max = (p->cw_max == 0) ? aCWmax : p->cw_max;
+ break;
+ case B43_QOS_BACKGROUND:
+ aifs = (p->aifs == -1) ? 7 : p->aifs;
+ cw_min = (p->cw_min == 0) ? aCWmin : p->cw_min;
+ cw_max = (p->cw_max == 0) ? aCWmax : p->cw_max;
+ break;
+ default:
+ B43_WARN_ON(1);
+ return;
+ }
+ if (cw_min <= 0)
+ cw_min = aCWmin;
+ if (cw_max <= 0)
+ cw_max = aCWmin;
+ bslots = b43_read16(dev, B43_MMIO_RNG) % cw_min;
+
+ memset(&params, 0, sizeof(params));
+
+ params[B43_QOSPARAM_TXOP] = p->txop * 32;
+ params[B43_QOSPARAM_CWMIN] = cw_min;
+ params[B43_QOSPARAM_CWMAX] = cw_max;
+ params[B43_QOSPARAM_CWCUR] = cw_min;
+ params[B43_QOSPARAM_AIFS] = aifs;
+ params[B43_QOSPARAM_BSLOTS] = bslots;
+ params[B43_QOSPARAM_REGGAP] = bslots + aifs;
+
+ for (i = 0; i < ARRAY_SIZE(params); i++) {
+ if (i == B43_QOSPARAM_STATUS) {
+ tmp = b43_shm_read16(dev, B43_SHM_SHARED,
+ shm_offset + (i * 2));
+ /* Mark the parameters as updated. */
+ tmp |= 0x100;
+ b43_shm_write16(dev, B43_SHM_SHARED,
+ shm_offset + (i * 2),
+ tmp);
+ } else {
+ b43_shm_write16(dev, B43_SHM_SHARED,
+ shm_offset + (i * 2),
+ params[i]);
+ }
+ }
+}
+
+/* Update the QOS parameters in hardware. */
+static void b43_qos_update(struct b43_wldev *dev)
+{
+ struct b43_wl *wl = dev->wl;
+ struct b43_qos_params *params;
+ unsigned long flags;
+ unsigned int i;
+
+ /* Mapping of mac80211 queues to b43 SHM offsets. */
+ static const u16 qos_shm_offsets[] = {
+ [0] = B43_QOS_VOICE,
+ [1] = B43_QOS_VIDEO,
+ [2] = B43_QOS_BESTEFFORT,
+ [3] = B43_QOS_BACKGROUND,
+ };
+ BUILD_BUG_ON(ARRAY_SIZE(qos_shm_offsets) != ARRAY_SIZE(wl->qos_params));
+
+ b43_mac_suspend(dev);
+ spin_lock_irqsave(&wl->irq_lock, flags);
+
+ for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
+ params = &(wl->qos_params[i]);
+ if (params->need_hw_update) {
+ b43_qos_params_upload(dev, &(params->p),
+ qos_shm_offsets[i]);
+ params->need_hw_update = 0;
+ }
+ }
+
+ spin_unlock_irqrestore(&wl->irq_lock, flags);
+ b43_mac_enable(dev);
+}
+
+static void b43_qos_clear(struct b43_wl *wl)
+{
+ struct b43_qos_params *params;
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
+ params = &(wl->qos_params[i]);
+
+ memset(&(params->p), 0, sizeof(params->p));
+ params->p.aifs = -1;
+ params->need_hw_update = 1;
+ }
+}
+
+/* Initialize the core's QOS capabilities */
+static void b43_qos_init(struct b43_wldev *dev)
+{
+ struct b43_wl *wl = dev->wl;
+ unsigned int i;
+
+ /* Upload the current QOS parameters. */
+ for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++)
+ wl->qos_params[i].need_hw_update = 1;
+ b43_qos_update(dev);
+
+ /* Enable QOS support. */
+ b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF);
+ b43_write16(dev, B43_MMIO_IFSCTL,
+ b43_read16(dev, B43_MMIO_IFSCTL)
+ | B43_MMIO_IFSCTL_USE_EDCF);
+}
+
+static void b43_qos_update_work(struct work_struct *work)
+{
+ struct b43_wl *wl = container_of(work, struct b43_wl, qos_update_work);
+ struct b43_wldev *dev;
+
+ mutex_lock(&wl->mutex);
+ dev = wl->current_dev;
+ if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED)))
+ b43_qos_update(dev);
+ mutex_unlock(&wl->mutex);
+}
+
static int b43_op_conf_tx(struct ieee80211_hw *hw,
- int queue,
+ int _queue,
const struct ieee80211_tx_queue_params *params)
{
+ struct b43_wl *wl = hw_to_b43_wl(hw);
+ unsigned long flags;
+ unsigned int queue = (unsigned int)_queue;
+ struct b43_qos_params *p;
+
+ if (queue >= ARRAY_SIZE(wl->qos_params)) {
+ /* Queue not available or don't support setting
+ * params on this queue. Return success to not
+ * confuse mac80211. */
+ return 0;
+ }
+
+ spin_lock_irqsave(&wl->irq_lock, flags);
+ p = &(wl->qos_params[queue]);
+ memcpy(&(p->p), params, sizeof(p->p));
+ p->need_hw_update = 1;
+ spin_unlock_irqrestore(&wl->irq_lock, flags);
+
+ queue_work(hw->workqueue, &wl->qos_update_work);
+
return 0;
}
@@ -2620,7 +3046,10 @@ static int b43_op_get_tx_stats(struct ieee80211_hw *hw,
goto out;
spin_lock_irqsave(&wl->irq_lock, flags);
if (likely(b43_status(dev) >= B43_STAT_STARTED)) {
- b43_dma_get_tx_stats(dev, stats);
+ if (b43_using_pio_transfers(dev))
+ b43_pio_get_tx_stats(dev, stats);
+ else
+ b43_dma_get_tx_stats(dev, stats);
err = 0;
}
spin_unlock_irqrestore(&wl->irq_lock, flags);
@@ -2641,45 +3070,6 @@ static int b43_op_get_stats(struct ieee80211_hw *hw,
return 0;
}
-static const char *phymode_to_string(unsigned int phymode)
-{
- switch (phymode) {
- case B43_PHYMODE_A:
- return "A";
- case B43_PHYMODE_B:
- return "B";
- case B43_PHYMODE_G:
- return "G";
- default:
- B43_WARN_ON(1);
- }
- return "";
-}
-
-static int find_wldev_for_phymode(struct b43_wl *wl,
- unsigned int phymode,
- struct b43_wldev **dev, bool * gmode)
-{
- struct b43_wldev *d;
-
- list_for_each_entry(d, &wl->devlist, list) {
- if (d->phy.possible_phymodes & phymode) {
- /* Ok, this device supports the PHY-mode.
- * Now figure out how the gmode bit has to be
- * set to support it. */
- if (phymode == B43_PHYMODE_A)
- *gmode = 0;
- else
- *gmode = 1;
- *dev = d;
-
- return 0;
- }
- }
-
- return -ESRCH;
-}
-
static void b43_put_phy_into_reset(struct b43_wldev *dev)
{
struct ssb_device *sdev = dev->dev;
@@ -2699,28 +3089,64 @@ static void b43_put_phy_into_reset(struct b43_wldev *dev)
msleep(1);
}
+static const char * band_to_string(enum ieee80211_band band)
+{
+ switch (band) {
+ case IEEE80211_BAND_5GHZ:
+ return "5";
+ case IEEE80211_BAND_2GHZ:
+ return "2.4";
+ default:
+ break;
+ }
+ B43_WARN_ON(1);
+ return "";
+}
+
/* Expects wl->mutex locked */
-static int b43_switch_phymode(struct b43_wl *wl, unsigned int new_mode)
+static int b43_switch_band(struct b43_wl *wl, struct ieee80211_channel *chan)
{
- struct b43_wldev *up_dev;
+ struct b43_wldev *up_dev = NULL;
struct b43_wldev *down_dev;
+ struct b43_wldev *d;
int err;
- bool gmode = 0;
+ bool gmode;
int prev_status;
- err = find_wldev_for_phymode(wl, new_mode, &up_dev, &gmode);
- if (err) {
- b43err(wl, "Could not find a device for %s-PHY mode\n",
- phymode_to_string(new_mode));
- return err;
+ /* Find a device and PHY which supports the band. */
+ list_for_each_entry(d, &wl->devlist, list) {
+ switch (chan->band) {
+ case IEEE80211_BAND_5GHZ:
+ if (d->phy.supports_5ghz) {
+ up_dev = d;
+ gmode = 0;
+ }
+ break;
+ case IEEE80211_BAND_2GHZ:
+ if (d->phy.supports_2ghz) {
+ up_dev = d;
+ gmode = 1;
+ }
+ break;
+ default:
+ B43_WARN_ON(1);
+ return -EINVAL;
+ }
+ if (up_dev)
+ break;
+ }
+ if (!up_dev) {
+ b43err(wl, "Could not find a device for %s-GHz band operation\n",
+ band_to_string(chan->band));
+ return -ENODEV;
}
if ((up_dev == wl->current_dev) &&
(!!wl->current_dev->phy.gmode == !!gmode)) {
/* This device is already running. */
return 0;
}
- b43dbg(wl, "Reconfiguring PHYmode to %s-PHY\n",
- phymode_to_string(new_mode));
+ b43dbg(wl, "Switching to %s-GHz band\n",
+ band_to_string(chan->band));
down_dev = wl->current_dev;
prev_status = b43_status(down_dev);
@@ -2742,8 +3168,8 @@ static int b43_switch_phymode(struct b43_wl *wl, unsigned int new_mode)
err = b43_wireless_core_init(up_dev);
if (err) {
b43err(wl, "Fatal: Could not initialize device for "
- "newly selected %s-PHY mode\n",
- phymode_to_string(new_mode));
+ "selected %s-GHz band\n",
+ band_to_string(chan->band));
goto init_failure;
}
}
@@ -2751,8 +3177,8 @@ static int b43_switch_phymode(struct b43_wl *wl, unsigned int new_mode)
err = b43_wireless_core_start(up_dev);
if (err) {
b43err(wl, "Fatal: Coult not start device for "
- "newly selected %s-PHY mode\n",
- phymode_to_string(new_mode));
+ "selected %s-GHz band\n",
+ band_to_string(chan->band));
b43_wireless_core_exit(up_dev);
goto init_failure;
}
@@ -2762,86 +3188,26 @@ static int b43_switch_phymode(struct b43_wl *wl, unsigned int new_mode)
wl->current_dev = up_dev;
return 0;
- init_failure:
+init_failure:
/* Whoops, failed to init the new core. No core is operating now. */
wl->current_dev = NULL;
return err;
}
-/* Check if the use of the antenna that ieee80211 told us to
- * use is possible. This will fall back to DEFAULT.
- * "antenna_nr" is the antenna identifier we got from ieee80211. */
-u8 b43_ieee80211_antenna_sanitize(struct b43_wldev *dev,
- u8 antenna_nr)
-{
- u8 antenna_mask;
-
- if (antenna_nr == 0) {
- /* Zero means "use default antenna". That's always OK. */
- return 0;
- }
-
- /* Get the mask of available antennas. */
- if (dev->phy.gmode)
- antenna_mask = dev->dev->bus->sprom.ant_available_bg;
- else
- antenna_mask = dev->dev->bus->sprom.ant_available_a;
-
- if (!(antenna_mask & (1 << (antenna_nr - 1)))) {
- /* This antenna is not available. Fall back to default. */
- return 0;
- }
-
- return antenna_nr;
-}
-
-static int b43_antenna_from_ieee80211(struct b43_wldev *dev, u8 antenna)
-{
- antenna = b43_ieee80211_antenna_sanitize(dev, antenna);
- switch (antenna) {
- case 0: /* default/diversity */
- return B43_ANTENNA_DEFAULT;
- case 1: /* Antenna 0 */
- return B43_ANTENNA0;
- case 2: /* Antenna 1 */
- return B43_ANTENNA1;
- case 3: /* Antenna 2 */
- return B43_ANTENNA2;
- case 4: /* Antenna 3 */
- return B43_ANTENNA3;
- default:
- return B43_ANTENNA_DEFAULT;
- }
-}
-
static int b43_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
{
struct b43_wl *wl = hw_to_b43_wl(hw);
struct b43_wldev *dev;
struct b43_phy *phy;
unsigned long flags;
- unsigned int new_phymode = 0xFFFF;
int antenna;
int err = 0;
u32 savedirqs;
mutex_lock(&wl->mutex);
- /* Switch the PHY mode (if necessary). */
- switch (conf->phymode) {
- case MODE_IEEE80211A:
- new_phymode = B43_PHYMODE_A;
- break;
- case MODE_IEEE80211B:
- new_phymode = B43_PHYMODE_B;
- break;
- case MODE_IEEE80211G:
- new_phymode = B43_PHYMODE_G;
- break;
- default:
- B43_WARN_ON(1);
- }
- err = b43_switch_phymode(wl, new_phymode);
+ /* Switch the band (if necessary). This might change the active core. */
+ err = b43_switch_band(wl, conf->channel);
if (err)
goto out_unlock_mutex;
dev = wl->current_dev;
@@ -2861,8 +3227,8 @@ static int b43_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
/* Switch to the requested channel.
* The firmware takes care of races with the TX handler. */
- if (conf->channel_val != phy->channel)
- b43_radio_selectchannel(dev, conf->channel_val, 0);
+ if (conf->channel->hw_value != phy->channel)
+ b43_radio_selectchannel(dev, conf->channel->hw_value, 0);
/* Enable/Disable ShortSlot timing. */
if ((!!(conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME)) !=
@@ -3075,8 +3441,10 @@ static int b43_op_config_interface(struct ieee80211_hw *hw,
if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP)) {
B43_WARN_ON(conf->type != IEEE80211_IF_TYPE_AP);
b43_set_ssid(dev, conf->ssid, conf->ssid_len);
- if (conf->beacon)
- b43_update_templates(wl, conf->beacon);
+ if (conf->beacon) {
+ b43_update_templates(wl, conf->beacon,
+ conf->beacon_control);
+ }
}
b43_write_mac_bssid_templates(dev);
}
@@ -3106,6 +3474,7 @@ static void b43_wireless_core_stop(struct b43_wldev *dev)
b43_set_status(dev, B43_STAT_INITIALIZED);
+ b43_pio_stop(dev);
mutex_unlock(&wl->mutex);
/* Must unlock as it would otherwise deadlock. No races here.
* Cancel the possibly running self-rearming periodic work. */
@@ -3400,6 +3769,41 @@ static void b43_set_retry_limits(struct b43_wldev *dev,
long_retry);
}
+static void b43_set_synth_pu_delay(struct b43_wldev *dev, bool idle)
+{
+ u16 pu_delay;
+
+ /* The time value is in microseconds. */
+ if (dev->phy.type == B43_PHYTYPE_A)
+ pu_delay = 3700;
+ else
+ pu_delay = 1050;
+ if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_IBSS) || idle)
+ pu_delay = 500;
+ if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8))
+ pu_delay = max(pu_delay, (u16)2400);
+
+ b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SPUWKUP, pu_delay);
+}
+
+/* Set the TSF CFP pre-TargetBeaconTransmissionTime. */
+static void b43_set_pretbtt(struct b43_wldev *dev)
+{
+ u16 pretbtt;
+
+ /* The time value is in microseconds. */
+ if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_IBSS)) {
+ pretbtt = 2;
+ } else {
+ if (dev->phy.type == B43_PHYTYPE_A)
+ pretbtt = 120;
+ else
+ pretbtt = 250;
+ }
+ b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRETBTT, pretbtt);
+ b43_write16(dev, B43_MMIO_TSF_CFP_PRETBTT, pretbtt);
+}
+
/* Shutdown a wireless core */
/* Locking: wl->mutex */
static void b43_wireless_core_exit(struct b43_wldev *dev)
@@ -3423,6 +3827,7 @@ static void b43_wireless_core_exit(struct b43_wldev *dev)
b43_rng_exit(dev->wl, false);
}
b43_dma_free(dev);
+ b43_pio_free(dev);
b43_chip_exit(dev);
b43_radio_turn_off(dev, 1);
b43_switch_analog(dev, 0);
@@ -3510,6 +3915,7 @@ static int b43_wireless_core_init(struct b43_wldev *dev)
b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRMAXTIME, 1);
b43_rate_memory_init(dev);
+ b43_set_phytxctl_defaults(dev);
/* Minimum Contention Window */
if (phy->type == B43_PHYTYPE_B) {
@@ -3520,18 +3926,17 @@ static int b43_wireless_core_init(struct b43_wldev *dev)
/* Maximum Contention Window */
b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF);
- err = b43_dma_init(dev);
+ if ((dev->dev->bus->bustype == SSB_BUSTYPE_PCMCIA) || B43_FORCE_PIO) {
+ dev->__using_pio_transfers = 1;
+ err = b43_pio_init(dev);
+ } else {
+ dev->__using_pio_transfers = 0;
+ err = b43_dma_init(dev);
+ }
if (err)
goto err_chip_exit;
b43_qos_init(dev);
-
-//FIXME
-#if 1
- b43_write16(dev, 0x0612, 0x0050);
- b43_shm_write16(dev, B43_SHM_SHARED, 0x0416, 0x0050);
- b43_shm_write16(dev, B43_SHM_SHARED, 0x0414, 0x01F4);
-#endif
-
+ b43_set_synth_pu_delay(dev, 1);
b43_bluetooth_coext_enable(dev);
ssb_bus_powerup(bus, 1); /* Enable dynamic PCTL */
@@ -3591,6 +3996,8 @@ static int b43_op_add_interface(struct ieee80211_hw *hw,
spin_lock_irqsave(&wl->irq_lock, flags);
b43_adjust_opmode(dev);
+ b43_set_pretbtt(dev);
+ b43_set_synth_pu_delay(dev, 0);
b43_upload_card_macaddress(dev);
spin_unlock_irqrestore(&wl->irq_lock, flags);
@@ -3642,6 +4049,7 @@ static int b43_op_start(struct ieee80211_hw *hw)
memset(wl->mac_addr, 0, ETH_ALEN);
wl->filter_flags = 0;
wl->radiotap_enabled = 0;
+ b43_qos_clear(wl);
/* First register RFkill.
* LEDs that are registered later depend on it. */
@@ -3683,6 +4091,8 @@ static void b43_op_stop(struct ieee80211_hw *hw)
struct b43_wldev *dev = wl->current_dev;
b43_rfkill_exit(dev);
+ cancel_work_sync(&(wl->qos_update_work));
+ cancel_work_sync(&(wl->beacon_update_trigger));
mutex_lock(&wl->mutex);
if (b43_status(dev) >= B43_STAT_STARTED)
@@ -3716,16 +4126,17 @@ static int b43_op_beacon_set_tim(struct ieee80211_hw *hw, int aid, int set)
struct b43_wl *wl = hw_to_b43_wl(hw);
struct sk_buff *beacon;
unsigned long flags;
+ struct ieee80211_tx_control txctl;
/* We could modify the existing beacon and set the aid bit in
* the TIM field, but that would probably require resizing and
* moving of data within the beacon template.
* Simply request a new beacon and let mac80211 do the hard work. */
- beacon = ieee80211_beacon_get(hw, wl->vif, NULL);
+ beacon = ieee80211_beacon_get(hw, wl->vif, &txctl);
if (unlikely(!beacon))
return -ENOMEM;
spin_lock_irqsave(&wl->irq_lock, flags);
- b43_update_templates(wl, beacon);
+ b43_update_templates(wl, beacon, &txctl);
spin_unlock_irqrestore(&wl->irq_lock, flags);
return 0;
@@ -3739,12 +4150,22 @@ static int b43_op_ibss_beacon_update(struct ieee80211_hw *hw,
unsigned long flags;
spin_lock_irqsave(&wl->irq_lock, flags);
- b43_update_templates(wl, beacon);
+ b43_update_templates(wl, beacon, ctl);
spin_unlock_irqrestore(&wl->irq_lock, flags);
return 0;
}
+static void b43_op_sta_notify(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ enum sta_notify_cmd notify_cmd,
+ const u8 *addr)
+{
+ struct b43_wl *wl = hw_to_b43_wl(hw);
+
+ B43_WARN_ON(!vif || wl->vif != vif);
+}
+
static const struct ieee80211_ops b43_hw_ops = {
.tx = b43_op_tx,
.conf_tx = b43_op_conf_tx,
@@ -3761,6 +4182,7 @@ static const struct ieee80211_ops b43_hw_ops = {
.set_retry_limit = b43_op_set_retry_limit,
.set_tim = b43_op_beacon_set_tim,
.beacon_update = b43_op_ibss_beacon_update,
+ .sta_notify = b43_op_sta_notify,
};
/* Hard-reset the chip. Do not call this directly.
@@ -3804,31 +4226,23 @@ static void b43_chip_reset(struct work_struct *work)
b43info(wl, "Controller restarted\n");
}
-static int b43_setup_modes(struct b43_wldev *dev,
+static int b43_setup_bands(struct b43_wldev *dev,
bool have_2ghz_phy, bool have_5ghz_phy)
{
struct ieee80211_hw *hw = dev->wl->hw;
- struct ieee80211_hw_mode *mode;
- struct b43_phy *phy = &dev->phy;
- int err;
- /* XXX: This function will go away soon, when mac80211
- * band stuff is rewritten. So this is just a hack.
- * For now we always claim GPHY mode, as there is no
- * support for NPHY and APHY in the device, yet.
- * This assumption is OK, as any B, N or A PHY will already
- * have died a horrible sanity check death earlier. */
-
- mode = &phy->hwmodes[0];
- mode->mode = MODE_IEEE80211G;
- mode->num_channels = b43_2ghz_chantable_size;
- mode->channels = b43_2ghz_chantable;
- mode->num_rates = b43_g_ratetable_size;
- mode->rates = b43_g_ratetable;
- err = ieee80211_register_hwmode(hw, mode);
- if (err)
- return err;
- phy->possible_phymodes |= B43_PHYMODE_G;
+ if (have_2ghz_phy)
+ hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &b43_band_2GHz;
+ if (dev->phy.type == B43_PHYTYPE_N) {
+ if (have_5ghz_phy)
+ hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_nphy;
+ } else {
+ if (have_5ghz_phy)
+ hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_aphy;
+ }
+
+ dev->phy.supports_2ghz = have_2ghz_phy;
+ dev->phy.supports_5ghz = have_5ghz_phy;
return 0;
}
@@ -3910,7 +4324,7 @@ static int b43_wireless_core_attach(struct b43_wldev *dev)
err = b43_validate_chipaccess(dev);
if (err)
goto err_powerdown;
- err = b43_setup_modes(dev, have_2ghz_phy, have_5ghz_phy);
+ err = b43_setup_bands(dev, have_2ghz_phy, have_5ghz_phy);
if (err)
goto err_powerdown;
@@ -4040,7 +4454,7 @@ static int b43_wireless_init(struct ssb_device *dev)
hw->max_signal = 100;
hw->max_rssi = -110;
hw->max_noise = -110;
- hw->queues = 1; /* FIXME: hardware has more queues */
+ hw->queues = b43_modparam_qos ? 4 : 1;
SET_IEEE80211_DEV(hw, dev->dev);
if (is_valid_ether_addr(sprom->et1mac))
SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac);
@@ -4056,6 +4470,8 @@ static int b43_wireless_init(struct ssb_device *dev)
spin_lock_init(&wl->shm_lock);
mutex_init(&wl->mutex);
INIT_LIST_HEAD(&wl->devlist);
+ INIT_WORK(&wl->qos_update_work, b43_qos_update_work);
+ INIT_WORK(&wl->beacon_update_trigger, b43_beacon_update_trigger_work);
ssb_set_devtypedata(dev, wl);
b43info(wl, "Broadcom %04X WLAN found\n", dev->bus->chip_id);
diff --git a/drivers/net/wireless/b43/main.h b/drivers/net/wireless/b43/main.h
index 2d52d9de930..5230aeca78b 100644
--- a/drivers/net/wireless/b43/main.h
+++ b/drivers/net/wireless/b43/main.h
@@ -38,6 +38,10 @@
/* Magic helper macro to pad structures. Ignore those above. It's magic. */
#define PAD_BYTES(nr_bytes) P4D_BYTES( __LINE__ , (nr_bytes))
+
+extern int b43_modparam_qos;
+
+
/* Lightweight function to convert a frequency (in Mhz) to a channel number. */
static inline u8 b43_freq_to_channel_5ghz(int freq)
{
@@ -95,16 +99,13 @@ u16 b43_shm_read16(struct b43_wldev *dev, u16 routing, u16 offset);
void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value);
void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value);
-u32 b43_hf_read(struct b43_wldev *dev);
-void b43_hf_write(struct b43_wldev *dev, u32 value);
+u64 b43_hf_read(struct b43_wldev *dev);
+void b43_hf_write(struct b43_wldev *dev, u64 value);
void b43_dummy_transmission(struct b43_wldev *dev);
void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags);
-void b43_mac_suspend(struct b43_wldev *dev);
-void b43_mac_enable(struct b43_wldev *dev);
-
void b43_controller_restart(struct b43_wldev *dev, const char *reason);
#define B43_PS_ENABLED (1 << 0) /* Force enable hardware power saving */
diff --git a/drivers/net/wireless/b43/nphy.c b/drivers/net/wireless/b43/nphy.c
index 705131ef4bf..8695eb22347 100644
--- a/drivers/net/wireless/b43/nphy.c
+++ b/drivers/net/wireless/b43/nphy.c
@@ -240,7 +240,6 @@ static void b43_nphy_workarounds(struct b43_wldev *dev)
b43_phy_set(dev, B43_NPHY_IQFLIP,
B43_NPHY_IQFLIP_ADC1 | B43_NPHY_IQFLIP_ADC2);
- //FIXME the following condition is different in the specs.
if (1 /* FIXME band is 2.4GHz */) {
b43_phy_set(dev, B43_NPHY_CLASSCTL,
B43_NPHY_CLASSCTL_CCKEN);
diff --git a/drivers/net/wireless/b43/nphy.h b/drivers/net/wireless/b43/nphy.h
index 5d95118b819..faf46b9cbf1 100644
--- a/drivers/net/wireless/b43/nphy.h
+++ b/drivers/net/wireless/b43/nphy.h
@@ -919,6 +919,10 @@
struct b43_wldev;
+
+#ifdef CONFIG_B43_NPHY
+/* N-PHY support enabled */
+
int b43_phy_initn(struct b43_wldev *dev);
void b43_nphy_radio_turn_on(struct b43_wldev *dev);
@@ -929,4 +933,40 @@ int b43_nphy_selectchannel(struct b43_wldev *dev, u8 channel);
void b43_nphy_xmitpower(struct b43_wldev *dev);
void b43_nphy_set_rxantenna(struct b43_wldev *dev, int antenna);
+
+#else /* CONFIG_B43_NPHY */
+/* N-PHY support disabled */
+
+
+static inline
+int b43_phy_initn(struct b43_wldev *dev)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline
+void b43_nphy_radio_turn_on(struct b43_wldev *dev)
+{
+}
+static inline
+void b43_nphy_radio_turn_off(struct b43_wldev *dev)
+{
+}
+
+static inline
+int b43_nphy_selectchannel(struct b43_wldev *dev, u8 channel)
+{
+ return -ENOSYS;
+}
+
+static inline
+void b43_nphy_xmitpower(struct b43_wldev *dev)
+{
+}
+static inline
+void b43_nphy_set_rxantenna(struct b43_wldev *dev, int antenna)
+{
+}
+
+#endif /* CONFIG_B43_NPHY */
#endif /* B43_NPHY_H_ */
diff --git a/drivers/net/wireless/b43/pcmcia.c b/drivers/net/wireless/b43/pcmcia.c
index 371e4a11951..b8aa16307f7 100644
--- a/drivers/net/wireless/b43/pcmcia.c
+++ b/drivers/net/wireless/b43/pcmcia.c
@@ -43,14 +43,16 @@ MODULE_DEVICE_TABLE(pcmcia, b43_pcmcia_tbl);
#ifdef CONFIG_PM
static int b43_pcmcia_suspend(struct pcmcia_device *dev)
{
- //TODO
- return 0;
+ struct ssb_bus *ssb = dev->priv;
+
+ return ssb_bus_suspend(ssb);
}
static int b43_pcmcia_resume(struct pcmcia_device *dev)
{
- //TODO
- return 0;
+ struct ssb_bus *ssb = dev->priv;
+
+ return ssb_bus_resume(ssb);
}
#else /* CONFIG_PM */
# define b43_pcmcia_suspend NULL
diff --git a/drivers/net/wireless/b43/pio.c b/drivers/net/wireless/b43/pio.c
new file mode 100644
index 00000000000..fcacafb0434
--- /dev/null
+++ b/drivers/net/wireless/b43/pio.c
@@ -0,0 +1,842 @@
+/*
+
+ Broadcom B43 wireless driver
+
+ PIO data transfer
+
+ Copyright (c) 2005-2008 Michael Buesch <mb@bu3sch.de>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+
+*/
+
+#include "b43.h"
+#include "pio.h"
+#include "dma.h"
+#include "main.h"
+#include "xmit.h"
+
+#include <linux/delay.h>
+
+
+static void b43_pio_rx_work(struct work_struct *work);
+
+
+static u16 generate_cookie(struct b43_pio_txqueue *q,
+ struct b43_pio_txpacket *pack)
+{
+ u16 cookie;
+
+ /* Use the upper 4 bits of the cookie as
+ * PIO controller ID and store the packet index number
+ * in the lower 12 bits.
+ * Note that the cookie must never be 0, as this
+ * is a special value used in RX path.
+ * It can also not be 0xFFFF because that is special
+ * for multicast frames.
+ */
+ cookie = (((u16)q->index + 1) << 12);
+ cookie |= pack->index;
+
+ return cookie;
+}
+
+static
+struct b43_pio_txqueue * parse_cookie(struct b43_wldev *dev,
+ u16 cookie,
+ struct b43_pio_txpacket **pack)
+{
+ struct b43_pio *pio = &dev->pio;
+ struct b43_pio_txqueue *q = NULL;
+ unsigned int pack_index;
+
+ switch (cookie & 0xF000) {
+ case 0x1000:
+ q = pio->tx_queue_AC_BK;
+ break;
+ case 0x2000:
+ q = pio->tx_queue_AC_BE;
+ break;
+ case 0x3000:
+ q = pio->tx_queue_AC_VI;
+ break;
+ case 0x4000:
+ q = pio->tx_queue_AC_VO;
+ break;
+ case 0x5000:
+ q = pio->tx_queue_mcast;
+ break;
+ }
+ if (B43_WARN_ON(!q))
+ return NULL;
+ pack_index = (cookie & 0x0FFF);
+ if (B43_WARN_ON(pack_index >= ARRAY_SIZE(q->packets)))
+ return NULL;
+ *pack = &q->packets[pack_index];
+
+ return q;
+}
+
+static u16 index_to_pioqueue_base(struct b43_wldev *dev,
+ unsigned int index)
+{
+ static const u16 bases[] = {
+ B43_MMIO_PIO_BASE0,
+ B43_MMIO_PIO_BASE1,
+ B43_MMIO_PIO_BASE2,
+ B43_MMIO_PIO_BASE3,
+ B43_MMIO_PIO_BASE4,
+ B43_MMIO_PIO_BASE5,
+ B43_MMIO_PIO_BASE6,
+ B43_MMIO_PIO_BASE7,
+ };
+ static const u16 bases_rev11[] = {
+ B43_MMIO_PIO11_BASE0,
+ B43_MMIO_PIO11_BASE1,
+ B43_MMIO_PIO11_BASE2,
+ B43_MMIO_PIO11_BASE3,
+ B43_MMIO_PIO11_BASE4,
+ B43_MMIO_PIO11_BASE5,
+ };
+
+ if (dev->dev->id.revision >= 11) {
+ B43_WARN_ON(index >= ARRAY_SIZE(bases_rev11));
+ return bases_rev11[index];
+ }
+ B43_WARN_ON(index >= ARRAY_SIZE(bases));
+ return bases[index];
+}
+
+static u16 pio_txqueue_offset(struct b43_wldev *dev)
+{
+ if (dev->dev->id.revision >= 11)
+ return 0x18;
+ return 0;
+}
+
+static u16 pio_rxqueue_offset(struct b43_wldev *dev)
+{
+ if (dev->dev->id.revision >= 11)
+ return 0x38;
+ return 8;
+}
+
+static struct b43_pio_txqueue * b43_setup_pioqueue_tx(struct b43_wldev *dev,
+ unsigned int index)
+{
+ struct b43_pio_txqueue *q;
+ struct b43_pio_txpacket *p;
+ unsigned int i;
+
+ q = kzalloc(sizeof(*q), GFP_KERNEL);
+ if (!q)
+ return NULL;
+ spin_lock_init(&q->lock);
+ q->dev = dev;
+ q->rev = dev->dev->id.revision;
+ q->mmio_base = index_to_pioqueue_base(dev, index) +
+ pio_txqueue_offset(dev);
+ q->index = index;
+
+ q->free_packet_slots = B43_PIO_MAX_NR_TXPACKETS;
+ if (q->rev >= 8) {
+ q->buffer_size = 1920; //FIXME this constant is wrong.
+ } else {
+ q->buffer_size = b43_piotx_read16(q, B43_PIO_TXQBUFSIZE);
+ q->buffer_size -= 80;
+ }
+
+ INIT_LIST_HEAD(&q->packets_list);
+ for (i = 0; i < ARRAY_SIZE(q->packets); i++) {
+ p = &(q->packets[i]);
+ INIT_LIST_HEAD(&p->list);
+ p->index = i;
+ p->queue = q;
+ list_add(&p->list, &q->packets_list);
+ }
+
+ return q;
+}
+
+static struct b43_pio_rxqueue * b43_setup_pioqueue_rx(struct b43_wldev *dev,
+ unsigned int index)
+{
+ struct b43_pio_rxqueue *q;
+
+ q = kzalloc(sizeof(*q), GFP_KERNEL);
+ if (!q)
+ return NULL;
+ spin_lock_init(&q->lock);
+ q->dev = dev;
+ q->rev = dev->dev->id.revision;
+ q->mmio_base = index_to_pioqueue_base(dev, index) +
+ pio_rxqueue_offset(dev);
+ INIT_WORK(&q->rx_work, b43_pio_rx_work);
+
+ /* Enable Direct FIFO RX (PIO) on the engine. */
+ b43_dma_direct_fifo_rx(dev, index, 1);
+
+ return q;
+}
+
+static void b43_pio_cancel_tx_packets(struct b43_pio_txqueue *q)
+{
+ struct b43_pio_txpacket *pack;
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(q->packets); i++) {
+ pack = &(q->packets[i]);
+ if (pack->skb) {
+ dev_kfree_skb_any(pack->skb);
+ pack->skb = NULL;
+ }
+ }
+}
+
+static void b43_destroy_pioqueue_tx(struct b43_pio_txqueue *q,
+ const char *name)
+{
+ if (!q)
+ return;
+ b43_pio_cancel_tx_packets(q);
+ kfree(q);
+}
+
+static void b43_destroy_pioqueue_rx(struct b43_pio_rxqueue *q,
+ const char *name)
+{
+ if (!q)
+ return;
+ kfree(q);
+}
+
+#define destroy_queue_tx(pio, queue) do { \
+ b43_destroy_pioqueue_tx((pio)->queue, __stringify(queue)); \
+ (pio)->queue = NULL; \
+ } while (0)
+
+#define destroy_queue_rx(pio, queue) do { \
+ b43_destroy_pioqueue_rx((pio)->queue, __stringify(queue)); \
+ (pio)->queue = NULL; \
+ } while (0)
+
+void b43_pio_free(struct b43_wldev *dev)
+{
+ struct b43_pio *pio;
+
+ if (!b43_using_pio_transfers(dev))
+ return;
+ pio = &dev->pio;
+
+ destroy_queue_rx(pio, rx_queue);
+ destroy_queue_tx(pio, tx_queue_mcast);
+ destroy_queue_tx(pio, tx_queue_AC_VO);
+ destroy_queue_tx(pio, tx_queue_AC_VI);
+ destroy_queue_tx(pio, tx_queue_AC_BE);
+ destroy_queue_tx(pio, tx_queue_AC_BK);
+}
+
+void b43_pio_stop(struct b43_wldev *dev)
+{
+ if (!b43_using_pio_transfers(dev))
+ return;
+ cancel_work_sync(&dev->pio.rx_queue->rx_work);
+}
+
+int b43_pio_init(struct b43_wldev *dev)
+{
+ struct b43_pio *pio = &dev->pio;
+ int err = -ENOMEM;
+
+ b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
+ & ~B43_MACCTL_BE);
+ b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_RXPADOFF, 0);
+
+ pio->tx_queue_AC_BK = b43_setup_pioqueue_tx(dev, 0);
+ if (!pio->tx_queue_AC_BK)
+ goto out;
+
+ pio->tx_queue_AC_BE = b43_setup_pioqueue_tx(dev, 1);
+ if (!pio->tx_queue_AC_BE)
+ goto err_destroy_bk;
+
+ pio->tx_queue_AC_VI = b43_setup_pioqueue_tx(dev, 2);
+ if (!pio->tx_queue_AC_VI)
+ goto err_destroy_be;
+
+ pio->tx_queue_AC_VO = b43_setup_pioqueue_tx(dev, 3);
+ if (!pio->tx_queue_AC_VO)
+ goto err_destroy_vi;
+
+ pio->tx_queue_mcast = b43_setup_pioqueue_tx(dev, 4);
+ if (!pio->tx_queue_mcast)
+ goto err_destroy_vo;
+
+ pio->rx_queue = b43_setup_pioqueue_rx(dev, 0);
+ if (!pio->rx_queue)
+ goto err_destroy_mcast;
+
+ b43dbg(dev->wl, "PIO initialized\n");
+ err = 0;
+out:
+ return err;
+
+err_destroy_mcast:
+ destroy_queue_tx(pio, tx_queue_mcast);
+err_destroy_vo:
+ destroy_queue_tx(pio, tx_queue_AC_VO);
+err_destroy_vi:
+ destroy_queue_tx(pio, tx_queue_AC_VI);
+err_destroy_be:
+ destroy_queue_tx(pio, tx_queue_AC_BE);
+err_destroy_bk:
+ destroy_queue_tx(pio, tx_queue_AC_BK);
+ return err;
+}
+
+/* Static mapping of mac80211's queues (priorities) to b43 PIO queues. */
+static struct b43_pio_txqueue * select_queue_by_priority(struct b43_wldev *dev,
+ u8 queue_prio)
+{
+ struct b43_pio_txqueue *q;
+
+ if (b43_modparam_qos) {
+ /* 0 = highest priority */
+ switch (queue_prio) {
+ default:
+ B43_WARN_ON(1);
+ /* fallthrough */
+ case 0:
+ q = dev->pio.tx_queue_AC_VO;
+ break;
+ case 1:
+ q = dev->pio.tx_queue_AC_VI;
+ break;
+ case 2:
+ q = dev->pio.tx_queue_AC_BE;
+ break;
+ case 3:
+ q = dev->pio.tx_queue_AC_BK;
+ break;
+ }
+ } else
+ q = dev->pio.tx_queue_AC_BE;
+
+ return q;
+}
+
+static u16 tx_write_2byte_queue(struct b43_pio_txqueue *q,
+ u16 ctl,
+ const void *_data,
+ unsigned int data_len)
+{
+ struct b43_wldev *dev = q->dev;
+ const u8 *data = _data;
+
+ ctl |= B43_PIO_TXCTL_WRITELO | B43_PIO_TXCTL_WRITEHI;
+ b43_piotx_write16(q, B43_PIO_TXCTL, ctl);
+
+ ssb_block_write(dev->dev, data, (data_len & ~1),
+ q->mmio_base + B43_PIO_TXDATA,
+ sizeof(u16));
+ if (data_len & 1) {
+ /* Write the last byte. */
+ ctl &= ~B43_PIO_TXCTL_WRITEHI;
+ b43_piotx_write16(q, B43_PIO_TXCTL, ctl);
+ b43_piotx_write16(q, B43_PIO_TXDATA, data[data_len - 1]);
+ }
+
+ return ctl;
+}
+
+static void pio_tx_frame_2byte_queue(struct b43_pio_txpacket *pack,
+ const u8 *hdr, unsigned int hdrlen)
+{
+ struct b43_pio_txqueue *q = pack->queue;
+ const char *frame = pack->skb->data;
+ unsigned int frame_len = pack->skb->len;
+ u16 ctl;
+
+ ctl = b43_piotx_read16(q, B43_PIO_TXCTL);
+ ctl |= B43_PIO_TXCTL_FREADY;
+ ctl &= ~B43_PIO_TXCTL_EOF;
+
+ /* Transfer the header data. */
+ ctl = tx_write_2byte_queue(q, ctl, hdr, hdrlen);
+ /* Transfer the frame data. */
+ ctl = tx_write_2byte_queue(q, ctl, frame, frame_len);
+
+ ctl |= B43_PIO_TXCTL_EOF;
+ b43_piotx_write16(q, B43_PIO_TXCTL, ctl);
+}
+
+static u32 tx_write_4byte_queue(struct b43_pio_txqueue *q,
+ u32 ctl,
+ const void *_data,
+ unsigned int data_len)
+{
+ struct b43_wldev *dev = q->dev;
+ const u8 *data = _data;
+
+ ctl |= B43_PIO8_TXCTL_0_7 | B43_PIO8_TXCTL_8_15 |
+ B43_PIO8_TXCTL_16_23 | B43_PIO8_TXCTL_24_31;
+ b43_piotx_write32(q, B43_PIO8_TXCTL, ctl);
+
+ ssb_block_write(dev->dev, data, (data_len & ~3),
+ q->mmio_base + B43_PIO8_TXDATA,
+ sizeof(u32));
+ if (data_len & 3) {
+ u32 value = 0;
+
+ /* Write the last few bytes. */
+ ctl &= ~(B43_PIO8_TXCTL_8_15 | B43_PIO8_TXCTL_16_23 |
+ B43_PIO8_TXCTL_24_31);
+ data = &(data[data_len - 1]);
+ switch (data_len & 3) {
+ case 3:
+ ctl |= B43_PIO8_TXCTL_16_23;
+ value |= (u32)(*data) << 16;
+ data--;
+ case 2:
+ ctl |= B43_PIO8_TXCTL_8_15;
+ value |= (u32)(*data) << 8;
+ data--;
+ case 1:
+ value |= (u32)(*data);
+ }
+ b43_piotx_write32(q, B43_PIO8_TXCTL, ctl);
+ b43_piotx_write32(q, B43_PIO8_TXDATA, value);
+ }
+
+ return ctl;
+}
+
+static void pio_tx_frame_4byte_queue(struct b43_pio_txpacket *pack,
+ const u8 *hdr, unsigned int hdrlen)
+{
+ struct b43_pio_txqueue *q = pack->queue;
+ const char *frame = pack->skb->data;
+ unsigned int frame_len = pack->skb->len;
+ u32 ctl;
+
+ ctl = b43_piotx_read32(q, B43_PIO8_TXCTL);
+ ctl |= B43_PIO8_TXCTL_FREADY;
+ ctl &= ~B43_PIO8_TXCTL_EOF;
+
+ /* Transfer the header data. */
+ ctl = tx_write_4byte_queue(q, ctl, hdr, hdrlen);
+ /* Transfer the frame data. */
+ ctl = tx_write_4byte_queue(q, ctl, frame, frame_len);
+
+ ctl |= B43_PIO8_TXCTL_EOF;
+ b43_piotx_write32(q, B43_PIO_TXCTL, ctl);
+}
+
+static int pio_tx_frame(struct b43_pio_txqueue *q,
+ struct sk_buff *skb,
+ struct ieee80211_tx_control *ctl)
+{
+ struct b43_pio_txpacket *pack;
+ struct b43_txhdr txhdr;
+ u16 cookie;
+ int err;
+ unsigned int hdrlen;
+
+ B43_WARN_ON(list_empty(&q->packets_list));
+ pack = list_entry(q->packets_list.next,
+ struct b43_pio_txpacket, list);
+ memset(&pack->txstat, 0, sizeof(pack->txstat));
+ memcpy(&pack->txstat.control, ctl, sizeof(*ctl));
+
+ cookie = generate_cookie(q, pack);
+ hdrlen = b43_txhdr_size(q->dev);
+ err = b43_generate_txhdr(q->dev, (u8 *)&txhdr, skb->data,
+ skb->len, ctl, cookie);
+ if (err)
+ return err;
+
+ if (ctl->flags & IEEE80211_TXCTL_SEND_AFTER_DTIM) {
+ /* Tell the firmware about the cookie of the last
+ * mcast frame, so it can clear the more-data bit in it. */
+ b43_shm_write16(q->dev, B43_SHM_SHARED,
+ B43_SHM_SH_MCASTCOOKIE, cookie);
+ }
+
+ pack->skb = skb;
+ if (q->rev >= 8)
+ pio_tx_frame_4byte_queue(pack, (const u8 *)&txhdr, hdrlen);
+ else
+ pio_tx_frame_2byte_queue(pack, (const u8 *)&txhdr, hdrlen);
+
+ /* Remove it from the list of available packet slots.
+ * It will be put back when we receive the status report. */
+ list_del(&pack->list);
+
+ /* Update the queue statistics. */
+ q->buffer_used += roundup(skb->len + hdrlen, 4);
+ q->free_packet_slots -= 1;
+
+ return 0;
+}
+
+int b43_pio_tx(struct b43_wldev *dev,
+ struct sk_buff *skb, struct ieee80211_tx_control *ctl)
+{
+ struct b43_pio_txqueue *q;
+ struct ieee80211_hdr *hdr;
+ unsigned long flags;
+ unsigned int hdrlen, total_len;
+ int err = 0;
+
+ hdr = (struct ieee80211_hdr *)skb->data;
+ if (ctl->flags & IEEE80211_TXCTL_SEND_AFTER_DTIM) {
+ /* The multicast queue will be sent after the DTIM. */
+ q = dev->pio.tx_queue_mcast;
+ /* Set the frame More-Data bit. Ucode will clear it
+ * for us on the last frame. */
+ hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREDATA);
+ } else {
+ /* Decide by priority where to put this frame. */
+ q = select_queue_by_priority(dev, ctl->queue);
+ }
+
+ spin_lock_irqsave(&q->lock, flags);
+
+ hdrlen = b43_txhdr_size(dev);
+ total_len = roundup(skb->len + hdrlen, 4);
+
+ if (unlikely(total_len > q->buffer_size)) {
+ err = -ENOBUFS;
+ b43dbg(dev->wl, "PIO: TX packet longer than queue.\n");
+ goto out_unlock;
+ }
+ if (unlikely(q->free_packet_slots == 0)) {
+ err = -ENOBUFS;
+ b43warn(dev->wl, "PIO: TX packet overflow.\n");
+ goto out_unlock;
+ }
+ B43_WARN_ON(q->buffer_used > q->buffer_size);
+
+ if (total_len > (q->buffer_size - q->buffer_used)) {
+ /* Not enough memory on the queue. */
+ err = -EBUSY;
+ ieee80211_stop_queue(dev->wl->hw, ctl->queue);
+ q->stopped = 1;
+ goto out_unlock;
+ }
+
+ /* Assign the queue number to the ring (if not already done before)
+ * so TX status handling can use it. The mac80211-queue to b43-queue
+ * mapping is static, so we don't need to store it per frame. */
+ q->queue_prio = ctl->queue;
+
+ err = pio_tx_frame(q, skb, ctl);
+ if (unlikely(err == -ENOKEY)) {
+ /* Drop this packet, as we don't have the encryption key
+ * anymore and must not transmit it unencrypted. */
+ dev_kfree_skb_any(skb);
+ err = 0;
+ goto out_unlock;
+ }
+ if (unlikely(err)) {
+ b43err(dev->wl, "PIO transmission failure\n");
+ goto out_unlock;
+ }
+ q->nr_tx_packets++;
+
+ B43_WARN_ON(q->buffer_used > q->buffer_size);
+ if (((q->buffer_size - q->buffer_used) < roundup(2 + 2 + 6, 4)) ||
+ (q->free_packet_slots == 0)) {
+ /* The queue is full. */
+ ieee80211_stop_queue(dev->wl->hw, ctl->queue);
+ q->stopped = 1;
+ }
+
+out_unlock:
+ spin_unlock_irqrestore(&q->lock, flags);
+
+ return err;
+}
+
+/* Called with IRQs disabled. */
+void b43_pio_handle_txstatus(struct b43_wldev *dev,
+ const struct b43_txstatus *status)
+{
+ struct b43_pio_txqueue *q;
+ struct b43_pio_txpacket *pack = NULL;
+ unsigned int total_len;
+
+ q = parse_cookie(dev, status->cookie, &pack);
+ if (unlikely(!q))
+ return;
+ B43_WARN_ON(!pack);
+
+ spin_lock(&q->lock); /* IRQs are already disabled. */
+
+ b43_fill_txstatus_report(&(pack->txstat), status);
+
+ total_len = pack->skb->len + b43_txhdr_size(dev);
+ total_len = roundup(total_len, 4);
+ q->buffer_used -= total_len;
+ q->free_packet_slots += 1;
+
+ ieee80211_tx_status_irqsafe(dev->wl->hw, pack->skb,
+ &(pack->txstat));
+ pack->skb = NULL;
+ list_add(&pack->list, &q->packets_list);
+
+ if (q->stopped) {
+ ieee80211_wake_queue(dev->wl->hw, q->queue_prio);
+ q->stopped = 0;
+ }
+
+ spin_unlock(&q->lock);
+}
+
+void b43_pio_get_tx_stats(struct b43_wldev *dev,
+ struct ieee80211_tx_queue_stats *stats)
+{
+ const int nr_queues = dev->wl->hw->queues;
+ struct b43_pio_txqueue *q;
+ struct ieee80211_tx_queue_stats_data *data;
+ unsigned long flags;
+ int i;
+
+ for (i = 0; i < nr_queues; i++) {
+ data = &(stats->data[i]);
+ q = select_queue_by_priority(dev, i);
+
+ spin_lock_irqsave(&q->lock, flags);
+ data->len = B43_PIO_MAX_NR_TXPACKETS - q->free_packet_slots;
+ data->limit = B43_PIO_MAX_NR_TXPACKETS;
+ data->count = q->nr_tx_packets;
+ spin_unlock_irqrestore(&q->lock, flags);
+ }
+}
+
+/* Returns whether we should fetch another frame. */
+static bool pio_rx_frame(struct b43_pio_rxqueue *q)
+{
+ struct b43_wldev *dev = q->dev;
+ struct b43_rxhdr_fw4 rxhdr;
+ u16 len;
+ u32 macstat;
+ unsigned int i, padding;
+ struct sk_buff *skb;
+ const char *err_msg = NULL;
+
+ memset(&rxhdr, 0, sizeof(rxhdr));
+
+ /* Check if we have data and wait for it to get ready. */
+ if (q->rev >= 8) {
+ u32 ctl;
+
+ ctl = b43_piorx_read32(q, B43_PIO8_RXCTL);
+ if (!(ctl & B43_PIO8_RXCTL_FRAMERDY))
+ return 0;
+ b43_piorx_write32(q, B43_PIO8_RXCTL,
+ B43_PIO8_RXCTL_FRAMERDY);
+ for (i = 0; i < 10; i++) {
+ ctl = b43_piorx_read32(q, B43_PIO8_RXCTL);
+ if (ctl & B43_PIO8_RXCTL_DATARDY)
+ goto data_ready;
+ udelay(10);
+ }
+ } else {
+ u16 ctl;
+
+ ctl = b43_piorx_read16(q, B43_PIO_RXCTL);
+ if (!(ctl & B43_PIO_RXCTL_FRAMERDY))
+ return 0;
+ b43_piorx_write16(q, B43_PIO_RXCTL,
+ B43_PIO_RXCTL_FRAMERDY);
+ for (i = 0; i < 10; i++) {
+ ctl = b43_piorx_read16(q, B43_PIO_RXCTL);
+ if (ctl & B43_PIO_RXCTL_DATARDY)
+ goto data_ready;
+ udelay(10);
+ }
+ }
+ b43dbg(q->dev->wl, "PIO RX timed out\n");
+ return 1;
+data_ready:
+
+ /* Get the preamble (RX header) */
+ if (q->rev >= 8) {
+ ssb_block_read(dev->dev, &rxhdr, sizeof(rxhdr),
+ q->mmio_base + B43_PIO8_RXDATA,
+ sizeof(u32));
+ } else {
+ ssb_block_read(dev->dev, &rxhdr, sizeof(rxhdr),
+ q->mmio_base + B43_PIO_RXDATA,
+ sizeof(u16));
+ }
+ /* Sanity checks. */
+ len = le16_to_cpu(rxhdr.frame_len);
+ if (unlikely(len > 0x700)) {
+ err_msg = "len > 0x700";
+ goto rx_error;
+ }
+ if (unlikely(len == 0)) {
+ err_msg = "len == 0";
+ goto rx_error;
+ }
+
+ macstat = le32_to_cpu(rxhdr.mac_status);
+ if (macstat & B43_RX_MAC_FCSERR) {
+ if (!(q->dev->wl->filter_flags & FIF_FCSFAIL)) {
+ /* Drop frames with failed FCS. */
+ err_msg = "Frame FCS error";
+ goto rx_error;
+ }
+ }
+
+ /* We always pad 2 bytes, as that's what upstream code expects
+ * due to the RX-header being 30 bytes. In case the frame is
+ * unaligned, we pad another 2 bytes. */
+ padding = (macstat & B43_RX_MAC_PADDING) ? 2 : 0;
+ skb = dev_alloc_skb(len + padding + 2);
+ if (unlikely(!skb)) {
+ err_msg = "Out of memory";
+ goto rx_error;
+ }
+ skb_reserve(skb, 2);
+ skb_put(skb, len + padding);
+ if (q->rev >= 8) {
+ ssb_block_read(dev->dev, skb->data + padding, (len & ~3),
+ q->mmio_base + B43_PIO8_RXDATA,
+ sizeof(u32));
+ if (len & 3) {
+ u32 value;
+ char *data;
+
+ /* Read the last few bytes. */
+ value = b43_piorx_read32(q, B43_PIO8_RXDATA);
+ data = &(skb->data[len + padding - 1]);
+ switch (len & 3) {
+ case 3:
+ *data = (value >> 16);
+ data--;
+ case 2:
+ *data = (value >> 8);
+ data--;
+ case 1:
+ *data = value;
+ }
+ }
+ } else {
+ ssb_block_read(dev->dev, skb->data + padding, (len & ~1),
+ q->mmio_base + B43_PIO_RXDATA,
+ sizeof(u16));
+ if (len & 1) {
+ u16 value;
+
+ /* Read the last byte. */
+ value = b43_piorx_read16(q, B43_PIO_RXDATA);
+ skb->data[len + padding - 1] = value;
+ }
+ }
+
+ b43_rx(q->dev, skb, &rxhdr);
+
+ return 1;
+
+rx_error:
+ if (err_msg)
+ b43dbg(q->dev->wl, "PIO RX error: %s\n", err_msg);
+ b43_piorx_write16(q, B43_PIO_RXCTL, B43_PIO_RXCTL_DATARDY);
+ return 1;
+}
+
+/* RX workqueue. We can sleep, yay! */
+static void b43_pio_rx_work(struct work_struct *work)
+{
+ struct b43_pio_rxqueue *q = container_of(work, struct b43_pio_rxqueue,
+ rx_work);
+ unsigned int budget = 50;
+ bool stop;
+
+ do {
+ spin_lock_irq(&q->lock);
+ stop = (pio_rx_frame(q) == 0);
+ spin_unlock_irq(&q->lock);
+ cond_resched();
+ if (stop)
+ break;
+ } while (--budget);
+}
+
+/* Called with IRQs disabled. */
+void b43_pio_rx(struct b43_pio_rxqueue *q)
+{
+ /* Due to latency issues we must run the RX path in
+ * a workqueue to be able to schedule between packets. */
+ queue_work(q->dev->wl->hw->workqueue, &q->rx_work);
+}
+
+static void b43_pio_tx_suspend_queue(struct b43_pio_txqueue *q)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&q->lock, flags);
+ if (q->rev >= 8) {
+ b43_piotx_write32(q, B43_PIO8_TXCTL,
+ b43_piotx_read32(q, B43_PIO8_TXCTL)
+ | B43_PIO8_TXCTL_SUSPREQ);
+ } else {
+ b43_piotx_write16(q, B43_PIO_TXCTL,
+ b43_piotx_read16(q, B43_PIO_TXCTL)
+ | B43_PIO_TXCTL_SUSPREQ);
+ }
+ spin_unlock_irqrestore(&q->lock, flags);
+}
+
+static void b43_pio_tx_resume_queue(struct b43_pio_txqueue *q)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&q->lock, flags);
+ if (q->rev >= 8) {
+ b43_piotx_write32(q, B43_PIO8_TXCTL,
+ b43_piotx_read32(q, B43_PIO8_TXCTL)
+ & ~B43_PIO8_TXCTL_SUSPREQ);
+ } else {
+ b43_piotx_write16(q, B43_PIO_TXCTL,
+ b43_piotx_read16(q, B43_PIO_TXCTL)
+ & ~B43_PIO_TXCTL_SUSPREQ);
+ }
+ spin_unlock_irqrestore(&q->lock, flags);
+}
+
+void b43_pio_tx_suspend(struct b43_wldev *dev)
+{
+ b43_power_saving_ctl_bits(dev, B43_PS_AWAKE);
+ b43_pio_tx_suspend_queue(dev->pio.tx_queue_AC_BK);
+ b43_pio_tx_suspend_queue(dev->pio.tx_queue_AC_BE);
+ b43_pio_tx_suspend_queue(dev->pio.tx_queue_AC_VI);
+ b43_pio_tx_suspend_queue(dev->pio.tx_queue_AC_VO);
+ b43_pio_tx_suspend_queue(dev->pio.tx_queue_mcast);
+}
+
+void b43_pio_tx_resume(struct b43_wldev *dev)
+{
+ b43_pio_tx_resume_queue(dev->pio.tx_queue_mcast);
+ b43_pio_tx_resume_queue(dev->pio.tx_queue_AC_VO);
+ b43_pio_tx_resume_queue(dev->pio.tx_queue_AC_VI);
+ b43_pio_tx_resume_queue(dev->pio.tx_queue_AC_BE);
+ b43_pio_tx_resume_queue(dev->pio.tx_queue_AC_BK);
+ b43_power_saving_ctl_bits(dev, 0);
+}
diff --git a/drivers/net/wireless/b43/pio.h b/drivers/net/wireless/b43/pio.h
new file mode 100644
index 00000000000..e2ec676cc9e
--- /dev/null
+++ b/drivers/net/wireless/b43/pio.h
@@ -0,0 +1,220 @@
+#ifndef B43_PIO_H_
+#define B43_PIO_H_
+
+#include "b43.h"
+
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/list.h>
+#include <linux/skbuff.h>
+
+
+/*** Registers for PIO queues up to revision 7. ***/
+/* TX queue. */
+#define B43_PIO_TXCTL 0x00
+#define B43_PIO_TXCTL_WRITELO 0x0001
+#define B43_PIO_TXCTL_WRITEHI 0x0002
+#define B43_PIO_TXCTL_EOF 0x0004
+#define B43_PIO_TXCTL_FREADY 0x0008
+#define B43_PIO_TXCTL_FLUSHREQ 0x0020
+#define B43_PIO_TXCTL_FLUSHPEND 0x0040
+#define B43_PIO_TXCTL_SUSPREQ 0x0080
+#define B43_PIO_TXCTL_QSUSP 0x0100
+#define B43_PIO_TXCTL_COMMCNT 0xFC00
+#define B43_PIO_TXCTL_COMMCNT_SHIFT 10
+#define B43_PIO_TXDATA 0x02
+#define B43_PIO_TXQBUFSIZE 0x04
+/* RX queue. */
+#define B43_PIO_RXCTL 0x00
+#define B43_PIO_RXCTL_FRAMERDY 0x0001
+#define B43_PIO_RXCTL_DATARDY 0x0002
+#define B43_PIO_RXDATA 0x02
+
+/*** Registers for PIO queues revision 8 and later. ***/
+/* TX queue */
+#define B43_PIO8_TXCTL 0x00
+#define B43_PIO8_TXCTL_0_7 0x00000001
+#define B43_PIO8_TXCTL_8_15 0x00000002
+#define B43_PIO8_TXCTL_16_23 0x00000004
+#define B43_PIO8_TXCTL_24_31 0x00000008
+#define B43_PIO8_TXCTL_EOF 0x00000010
+#define B43_PIO8_TXCTL_FREADY 0x00000080
+#define B43_PIO8_TXCTL_SUSPREQ 0x00000100
+#define B43_PIO8_TXCTL_QSUSP 0x00000200
+#define B43_PIO8_TXCTL_FLUSHREQ 0x00000400
+#define B43_PIO8_TXCTL_FLUSHPEND 0x00000800
+#define B43_PIO8_TXDATA 0x04
+/* RX queue */
+#define B43_PIO8_RXCTL 0x00
+#define B43_PIO8_RXCTL_FRAMERDY 0x00000001
+#define B43_PIO8_RXCTL_DATARDY 0x00000002
+#define B43_PIO8_RXDATA 0x04
+
+
+/* The maximum number of TX-packets the HW can handle. */
+#define B43_PIO_MAX_NR_TXPACKETS 32
+
+
+#ifdef CONFIG_B43_PIO
+
+struct b43_pio_txpacket {
+ /* Pointer to the TX queue we belong to. */
+ struct b43_pio_txqueue *queue;
+ /* The TX data packet. */
+ struct sk_buff *skb;
+ /* The status meta data. */
+ struct ieee80211_tx_status txstat;
+ /* Index in the (struct b43_pio_txqueue)->packets array. */
+ u8 index;
+
+ struct list_head list;
+};
+
+struct b43_pio_txqueue {
+ struct b43_wldev *dev;
+ spinlock_t lock;
+ u16 mmio_base;
+
+ /* The device queue buffer size in bytes. */
+ u16 buffer_size;
+ /* The number of used bytes in the device queue buffer. */
+ u16 buffer_used;
+ /* The number of packets that can still get queued.
+ * This is decremented on queueing a packet and incremented
+ * after receiving the transmit status. */
+ u16 free_packet_slots;
+
+ /* True, if the mac80211 queue was stopped due to overflow at TX. */
+ bool stopped;
+ /* Our b43 queue index number */
+ u8 index;
+ /* The mac80211 QoS queue priority. */
+ u8 queue_prio;
+
+ /* Buffer for TX packet meta data. */
+ struct b43_pio_txpacket packets[B43_PIO_MAX_NR_TXPACKETS];
+ struct list_head packets_list;
+
+ /* Total number of transmitted packets. */
+ unsigned int nr_tx_packets;
+
+ /* Shortcut to the 802.11 core revision. This is to
+ * avoid horrible pointer dereferencing in the fastpaths. */
+ u8 rev;
+};
+
+struct b43_pio_rxqueue {
+ struct b43_wldev *dev;
+ spinlock_t lock;
+ u16 mmio_base;
+
+ /* Work to reduce latency issues on RX. */
+ struct work_struct rx_work;
+
+ /* Shortcut to the 802.11 core revision. This is to
+ * avoid horrible pointer dereferencing in the fastpaths. */
+ u8 rev;
+};
+
+
+static inline u16 b43_piotx_read16(struct b43_pio_txqueue *q, u16 offset)
+{
+ return b43_read16(q->dev, q->mmio_base + offset);
+}
+
+static inline u32 b43_piotx_read32(struct b43_pio_txqueue *q, u16 offset)
+{
+ return b43_read32(q->dev, q->mmio_base + offset);
+}
+
+static inline void b43_piotx_write16(struct b43_pio_txqueue *q,
+ u16 offset, u16 value)
+{
+ b43_write16(q->dev, q->mmio_base + offset, value);
+}
+
+static inline void b43_piotx_write32(struct b43_pio_txqueue *q,
+ u16 offset, u32 value)
+{
+ b43_write32(q->dev, q->mmio_base + offset, value);
+}
+
+
+static inline u16 b43_piorx_read16(struct b43_pio_rxqueue *q, u16 offset)
+{
+ return b43_read16(q->dev, q->mmio_base + offset);
+}
+
+static inline u32 b43_piorx_read32(struct b43_pio_rxqueue *q, u16 offset)
+{
+ return b43_read32(q->dev, q->mmio_base + offset);
+}
+
+static inline void b43_piorx_write16(struct b43_pio_rxqueue *q,
+ u16 offset, u16 value)
+{
+ b43_write16(q->dev, q->mmio_base + offset, value);
+}
+
+static inline void b43_piorx_write32(struct b43_pio_rxqueue *q,
+ u16 offset, u32 value)
+{
+ b43_write32(q->dev, q->mmio_base + offset, value);
+}
+
+
+int b43_pio_init(struct b43_wldev *dev);
+void b43_pio_stop(struct b43_wldev *dev);
+void b43_pio_free(struct b43_wldev *dev);
+
+int b43_pio_tx(struct b43_wldev *dev,
+ struct sk_buff *skb, struct ieee80211_tx_control *ctl);
+void b43_pio_handle_txstatus(struct b43_wldev *dev,
+ const struct b43_txstatus *status);
+void b43_pio_get_tx_stats(struct b43_wldev *dev,
+ struct ieee80211_tx_queue_stats *stats);
+void b43_pio_rx(struct b43_pio_rxqueue *q);
+
+void b43_pio_tx_suspend(struct b43_wldev *dev);
+void b43_pio_tx_resume(struct b43_wldev *dev);
+
+
+#else /* CONFIG_B43_PIO */
+
+
+static inline int b43_pio_init(struct b43_wldev *dev)
+{
+ return 0;
+}
+static inline void b43_pio_free(struct b43_wldev *dev)
+{
+}
+static inline void b43_pio_stop(struct b43_wldev *dev)
+{
+}
+static inline int b43_pio_tx(struct b43_wldev *dev,
+ struct sk_buff *skb,
+ struct ieee80211_tx_control *ctl)
+{
+ return 0;
+}
+static inline void b43_pio_handle_txstatus(struct b43_wldev *dev,
+ const struct b43_txstatus *status)
+{
+}
+static inline void b43_pio_get_tx_stats(struct b43_wldev *dev,
+ struct ieee80211_tx_queue_stats *stats)
+{
+}
+static inline void b43_pio_rx(struct b43_pio_rxqueue *q)
+{
+}
+static inline void b43_pio_tx_suspend(struct b43_wldev *dev)
+{
+}
+static inline void b43_pio_tx_resume(struct b43_wldev *dev)
+{
+}
+
+#endif /* CONFIG_B43_PIO */
+#endif /* B43_PIO_H_ */
diff --git a/drivers/net/wireless/b43/sysfs.c b/drivers/net/wireless/b43/sysfs.c
index f4faff6a7d6..275095b8cbe 100644
--- a/drivers/net/wireless/b43/sysfs.c
+++ b/drivers/net/wireless/b43/sysfs.c
@@ -47,29 +47,6 @@ static int get_integer(const char *buf, size_t count)
return ret;
}
-static int get_boolean(const char *buf, size_t count)
-{
- if (count != 0) {
- if (buf[0] == '1')
- return 1;
- if (buf[0] == '0')
- return 0;
- if (count >= 4 && memcmp(buf, "true", 4) == 0)
- return 1;
- if (count >= 5 && memcmp(buf, "false", 5) == 0)
- return 0;
- if (count >= 3 && memcmp(buf, "yes", 3) == 0)
- return 1;
- if (count >= 2 && memcmp(buf, "no", 2) == 0)
- return 0;
- if (count >= 2 && memcmp(buf, "on", 2) == 0)
- return 1;
- if (count >= 3 && memcmp(buf, "off", 3) == 0)
- return 0;
- }
- return -EINVAL;
-}
-
static ssize_t b43_attr_interfmode_show(struct device *dev,
struct device_attribute *attr,
char *buf)
@@ -155,82 +132,18 @@ static ssize_t b43_attr_interfmode_store(struct device *dev,
static DEVICE_ATTR(interference, 0644,
b43_attr_interfmode_show, b43_attr_interfmode_store);
-static ssize_t b43_attr_preamble_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct b43_wldev *wldev = dev_to_b43_wldev(dev);
- ssize_t count;
-
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- mutex_lock(&wldev->wl->mutex);
-
- if (wldev->short_preamble)
- count =
- snprintf(buf, PAGE_SIZE, "1 (Short Preamble enabled)\n");
- else
- count =
- snprintf(buf, PAGE_SIZE, "0 (Short Preamble disabled)\n");
-
- mutex_unlock(&wldev->wl->mutex);
-
- return count;
-}
-
-static ssize_t b43_attr_preamble_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct b43_wldev *wldev = dev_to_b43_wldev(dev);
- unsigned long flags;
- int value;
-
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- value = get_boolean(buf, count);
- if (value < 0)
- return value;
- mutex_lock(&wldev->wl->mutex);
- spin_lock_irqsave(&wldev->wl->irq_lock, flags);
-
- wldev->short_preamble = !!value;
-
- spin_unlock_irqrestore(&wldev->wl->irq_lock, flags);
- mutex_unlock(&wldev->wl->mutex);
-
- return count;
-}
-
-static DEVICE_ATTR(shortpreamble, 0644,
- b43_attr_preamble_show, b43_attr_preamble_store);
-
int b43_sysfs_register(struct b43_wldev *wldev)
{
struct device *dev = wldev->dev->dev;
- int err;
B43_WARN_ON(b43_status(wldev) != B43_STAT_INITIALIZED);
- err = device_create_file(dev, &dev_attr_interference);
- if (err)
- goto out;
- err = device_create_file(dev, &dev_attr_shortpreamble);
- if (err)
- goto err_remove_interfmode;
-
- out:
- return err;
- err_remove_interfmode:
- device_remove_file(dev, &dev_attr_interference);
- goto out;
+ return device_create_file(dev, &dev_attr_interference);
}
void b43_sysfs_unregister(struct b43_wldev *wldev)
{
struct device *dev = wldev->dev->dev;
- device_remove_file(dev, &dev_attr_shortpreamble);
device_remove_file(dev, &dev_attr_interference);
}
diff --git a/drivers/net/wireless/b43/wa.c b/drivers/net/wireless/b43/wa.c
index e632125cb77..daa94211f83 100644
--- a/drivers/net/wireless/b43/wa.c
+++ b/drivers/net/wireless/b43/wa.c
@@ -204,42 +204,43 @@ static void b43_wa_rt(struct b43_wldev *dev) /* Rotor table */
b43_ofdmtab_write32(dev, B43_OFDMTAB_ROTOR, i, b43_tab_rotor[i]);
}
+static void b43_write_null_nst(struct b43_wldev *dev)
+{
+ int i;
+
+ for (i = 0; i < B43_TAB_NOISESCALE_SIZE; i++)
+ b43_ofdmtab_write16(dev, B43_OFDMTAB_NOISESCALE, i, 0);
+}
+
+static void b43_write_nst(struct b43_wldev *dev, const u16 *nst)
+{
+ int i;
+
+ for (i = 0; i < B43_TAB_NOISESCALE_SIZE; i++)
+ b43_ofdmtab_write16(dev, B43_OFDMTAB_NOISESCALE, i, nst[i]);
+}
+
static void b43_wa_nst(struct b43_wldev *dev) /* Noise scale table */
{
struct b43_phy *phy = &dev->phy;
- int i;
if (phy->type == B43_PHYTYPE_A) {
if (phy->rev <= 1)
- for (i = 0; i < B43_TAB_NOISESCALE_SIZE; i++)
- b43_ofdmtab_write16(dev, B43_OFDMTAB_NOISESCALE,
- i, 0);
+ b43_write_null_nst(dev);
else if (phy->rev == 2)
- for (i = 0; i < B43_TAB_NOISESCALE_SIZE; i++)
- b43_ofdmtab_write16(dev, B43_OFDMTAB_NOISESCALE,
- i, b43_tab_noisescalea2[i]);
+ b43_write_nst(dev, b43_tab_noisescalea2);
else if (phy->rev == 3)
- for (i = 0; i < B43_TAB_NOISESCALE_SIZE; i++)
- b43_ofdmtab_write16(dev, B43_OFDMTAB_NOISESCALE,
- i, b43_tab_noisescalea3[i]);
+ b43_write_nst(dev, b43_tab_noisescalea3);
else
- for (i = 0; i < B43_TAB_NOISESCALE_SIZE; i++)
- b43_ofdmtab_write16(dev, B43_OFDMTAB_NOISESCALE,
- i, b43_tab_noisescaleg3[i]);
+ b43_write_nst(dev, b43_tab_noisescaleg3);
} else {
if (phy->rev >= 6) {
if (b43_phy_read(dev, B43_PHY_ENCORE) & B43_PHY_ENCORE_EN)
- for (i = 0; i < B43_TAB_NOISESCALE_SIZE; i++)
- b43_ofdmtab_write16(dev, B43_OFDMTAB_NOISESCALE,
- i, b43_tab_noisescaleg3[i]);
+ b43_write_nst(dev, b43_tab_noisescaleg3);
else
- for (i = 0; i < B43_TAB_NOISESCALE_SIZE; i++)
- b43_ofdmtab_write16(dev, B43_OFDMTAB_NOISESCALE,
- i, b43_tab_noisescaleg2[i]);
+ b43_write_nst(dev, b43_tab_noisescaleg2);
} else {
- for (i = 0; i < B43_TAB_NOISESCALE_SIZE; i++)
- b43_ofdmtab_write16(dev, B43_OFDMTAB_NOISESCALE,
- i, b43_tab_noisescaleg1[i]);
+ b43_write_nst(dev, b43_tab_noisescaleg1);
}
}
}
diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c
index 7caa26eb410..19aefbfb2c9 100644
--- a/drivers/net/wireless/b43/xmit.c
+++ b/drivers/net/wireless/b43/xmit.c
@@ -30,48 +30,51 @@
#include "xmit.h"
#include "phy.h"
#include "dma.h"
+#include "pio.h"
-/* Extract the bitrate out of a CCK PLCP header. */
-static u8 b43_plcp_get_bitrate_cck(struct b43_plcp_hdr6 *plcp)
+/* Extract the bitrate index out of a CCK PLCP header. */
+static int b43_plcp_get_bitrate_idx_cck(struct b43_plcp_hdr6 *plcp)
{
switch (plcp->raw[0]) {
case 0x0A:
- return B43_CCK_RATE_1MB;
+ return 0;
case 0x14:
- return B43_CCK_RATE_2MB;
+ return 1;
case 0x37:
- return B43_CCK_RATE_5MB;
+ return 2;
case 0x6E:
- return B43_CCK_RATE_11MB;
+ return 3;
}
B43_WARN_ON(1);
- return 0;
+ return -1;
}
-/* Extract the bitrate out of an OFDM PLCP header. */
-static u8 b43_plcp_get_bitrate_ofdm(struct b43_plcp_hdr6 *plcp)
+/* Extract the bitrate index out of an OFDM PLCP header. */
+static u8 b43_plcp_get_bitrate_idx_ofdm(struct b43_plcp_hdr6 *plcp, bool aphy)
{
+ int base = aphy ? 0 : 4;
+
switch (plcp->raw[0] & 0xF) {
case 0xB:
- return B43_OFDM_RATE_6MB;
+ return base + 0;
case 0xF:
- return B43_OFDM_RATE_9MB;
+ return base + 1;
case 0xA:
- return B43_OFDM_RATE_12MB;
+ return base + 2;
case 0xE:
- return B43_OFDM_RATE_18MB;
+ return base + 3;
case 0x9:
- return B43_OFDM_RATE_24MB;
+ return base + 4;
case 0xD:
- return B43_OFDM_RATE_36MB;
+ return base + 5;
case 0x8:
- return B43_OFDM_RATE_48MB;
+ return base + 6;
case 0xC:
- return B43_OFDM_RATE_54MB;
+ return base + 7;
}
B43_WARN_ON(1);
- return 0;
+ return -1;
}
u8 b43_plcp_get_ratecode_cck(const u8 bitrate)
@@ -191,6 +194,7 @@ int b43_generate_txhdr(struct b43_wldev *dev,
(const struct ieee80211_hdr *)fragment_data;
int use_encryption = (!(txctl->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT));
u16 fctl = le16_to_cpu(wlhdr->frame_control);
+ struct ieee80211_rate *fbrate;
u8 rate, rate_fb;
int rate_ofdm, rate_fb_ofdm;
unsigned int plcp_fragment_len;
@@ -200,9 +204,11 @@ int b43_generate_txhdr(struct b43_wldev *dev,
memset(txhdr, 0, sizeof(*txhdr));
- rate = txctl->tx_rate;
+ WARN_ON(!txctl->tx_rate);
+ rate = txctl->tx_rate ? txctl->tx_rate->hw_value : B43_CCK_RATE_1MB;
rate_ofdm = b43_is_ofdm_rate(rate);
- rate_fb = (txctl->alt_retry_rate == -1) ? rate : txctl->alt_retry_rate;
+ fbrate = txctl->alt_retry_rate ? : txctl->tx_rate;
+ rate_fb = fbrate->hw_value;
rate_fb_ofdm = b43_is_ofdm_rate(rate_fb);
if (rate_ofdm)
@@ -221,11 +227,10 @@ int b43_generate_txhdr(struct b43_wldev *dev,
* use the original dur_id field. */
txhdr->dur_fb = wlhdr->duration_id;
} else {
- int fbrate_base100kbps = B43_RATE_TO_BASE100KBPS(rate_fb);
txhdr->dur_fb = ieee80211_generic_frame_duration(dev->wl->hw,
txctl->vif,
fragment_len,
- fbrate_base100kbps);
+ fbrate);
}
plcp_fragment_len = fragment_len + FCS_LEN;
@@ -287,7 +292,7 @@ int b43_generate_txhdr(struct b43_wldev *dev,
phy_ctl |= B43_TXH_PHY_ENC_OFDM;
else
phy_ctl |= B43_TXH_PHY_ENC_CCK;
- if (dev->short_preamble)
+ if (txctl->flags & IEEE80211_TXCTL_SHORT_PREAMBLE)
phy_ctl |= B43_TXH_PHY_SHORTPRMBL;
switch (b43_ieee80211_antenna_sanitize(dev, txctl->antenna_sel_tx)) {
@@ -332,7 +337,8 @@ int b43_generate_txhdr(struct b43_wldev *dev,
int rts_rate_ofdm, rts_rate_fb_ofdm;
struct b43_plcp_hdr6 *plcp;
- rts_rate = txctl->rts_cts_rate;
+ WARN_ON(!txctl->rts_cts_rate);
+ rts_rate = txctl->rts_cts_rate ? txctl->rts_cts_rate->hw_value : B43_CCK_RATE_1MB;
rts_rate_ofdm = b43_is_ofdm_rate(rts_rate);
rts_rate_fb = b43_calc_fallback_rate(rts_rate);
rts_rate_fb_ofdm = b43_is_ofdm_rate(rts_rate_fb);
@@ -506,7 +512,7 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
u16 phystat0, phystat3, chanstat, mactime;
u32 macstat;
u16 chanid;
- u8 jssi;
+ u16 phytype;
int padding;
memset(&status, 0, sizeof(status));
@@ -514,10 +520,10 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
/* Get metadata about the frame from the header. */
phystat0 = le16_to_cpu(rxhdr->phy_status0);
phystat3 = le16_to_cpu(rxhdr->phy_status3);
- jssi = rxhdr->jssi;
macstat = le32_to_cpu(rxhdr->mac_status);
mactime = le16_to_cpu(rxhdr->mac_time);
chanstat = le16_to_cpu(rxhdr->channel);
+ phytype = chanstat & B43_RX_CHAN_PHYTYPE;
if (macstat & B43_RX_MAC_FCSERR)
dev->wl->ieee_stats.dot11FCSErrorCount++;
@@ -567,26 +573,40 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
}
}
- status.ssi = b43_rssi_postprocess(dev, jssi,
- (phystat0 & B43_RX_PHYST0_OFDM),
- (phystat0 & B43_RX_PHYST0_GAINCTL),
- (phystat3 & B43_RX_PHYST3_TRSTATE));
+ /* Link quality statistics */
status.noise = dev->stats.link_noise;
- /* the next line looks wrong, but is what mac80211 wants */
- status.signal = (jssi * 100) / B43_RX_MAX_SSI;
+ if ((chanstat & B43_RX_CHAN_PHYTYPE) == B43_PHYTYPE_N) {
+// s8 rssi = max(rxhdr->power0, rxhdr->power1);
+ //TODO: Find out what the rssi value is (dBm or percentage?)
+ // and also find out what the maximum possible value is.
+ // Fill status.ssi and status.signal fields.
+ } else {
+ status.ssi = b43_rssi_postprocess(dev, rxhdr->jssi,
+ (phystat0 & B43_RX_PHYST0_OFDM),
+ (phystat0 & B43_RX_PHYST0_GAINCTL),
+ (phystat3 & B43_RX_PHYST3_TRSTATE));
+ /* the next line looks wrong, but is what mac80211 wants */
+ status.signal = (rxhdr->jssi * 100) / B43_RX_MAX_SSI;
+ }
+
if (phystat0 & B43_RX_PHYST0_OFDM)
- status.rate = b43_plcp_get_bitrate_ofdm(plcp);
+ status.rate_idx = b43_plcp_get_bitrate_idx_ofdm(plcp,
+ phytype == B43_PHYTYPE_A);
else
- status.rate = b43_plcp_get_bitrate_cck(plcp);
+ status.rate_idx = b43_plcp_get_bitrate_idx_cck(plcp);
status.antenna = !!(phystat0 & B43_RX_PHYST0_ANT);
/*
- * If monitors are present get full 64-bit timestamp. This
- * code assumes we get to process the packet within 16 bits
- * of timestamp, i.e. about 65 milliseconds after the PHY
- * received the first symbol.
+ * All frames on monitor interfaces and beacons always need a full
+ * 64-bit timestamp. Monitor interfaces need it for diagnostic
+ * purposes and beacons for IBSS merging.
+ * This code assumes we get to process the packet within 16 bits
+ * of timestamp, i.e. about 65 milliseconds after the PHY received
+ * the first symbol.
*/
- if (dev->wl->radiotap_enabled) {
+ if (((fctl & (IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE))
+ == (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON)) ||
+ dev->wl->radiotap_enabled) {
u16 low_mactime_now;
b43_tsf_read(dev, &status.mactime);
@@ -601,29 +621,28 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
chanid = (chanstat & B43_RX_CHAN_ID) >> B43_RX_CHAN_ID_SHIFT;
switch (chanstat & B43_RX_CHAN_PHYTYPE) {
case B43_PHYTYPE_A:
- status.phymode = MODE_IEEE80211A;
+ status.band = IEEE80211_BAND_5GHZ;
B43_WARN_ON(1);
/* FIXME: We don't really know which value the "chanid" contains.
* So the following assignment might be wrong. */
- status.channel = chanid;
- status.freq = b43_channel_to_freq_5ghz(status.channel);
+ status.freq = b43_channel_to_freq_5ghz(chanid);
break;
case B43_PHYTYPE_G:
- status.phymode = MODE_IEEE80211G;
+ status.band = IEEE80211_BAND_2GHZ;
/* chanid is the radio channel cookie value as used
* to tune the radio. */
status.freq = chanid + 2400;
- status.channel = b43_freq_to_channel_2ghz(status.freq);
break;
case B43_PHYTYPE_N:
- status.phymode = 0xDEAD /*FIXME MODE_IEEE80211N*/;
/* chanid is the SHM channel cookie. Which is the plain
* channel number in b43. */
- status.channel = chanid;
- if (chanstat & B43_RX_CHAN_5GHZ)
- status.freq = b43_freq_to_channel_5ghz(status.freq);
- else
- status.freq = b43_freq_to_channel_2ghz(status.freq);
+ if (chanstat & B43_RX_CHAN_5GHZ) {
+ status.band = IEEE80211_BAND_5GHZ;
+ status.freq = b43_freq_to_channel_5ghz(chanid);
+ } else {
+ status.band = IEEE80211_BAND_2GHZ;
+ status.freq = b43_freq_to_channel_2ghz(chanid);
+ }
break;
default:
B43_WARN_ON(1);
@@ -657,67 +676,54 @@ void b43_handle_txstatus(struct b43_wldev *dev,
dev->wl->ieee_stats.dot11RTSSuccessCount++;
}
- b43_dma_handle_txstatus(dev, status);
+ if (b43_using_pio_transfers(dev))
+ b43_pio_handle_txstatus(dev, status);
+ else
+ b43_dma_handle_txstatus(dev, status);
}
-/* Handle TX status report as received through DMA/PIO queues */
-void b43_handle_hwtxstatus(struct b43_wldev *dev,
- const struct b43_hwtxstatus *hw)
+/* Fill out the mac80211 TXstatus report based on the b43-specific
+ * txstatus report data. This returns a boolean whether the frame was
+ * successfully transmitted. */
+bool b43_fill_txstatus_report(struct ieee80211_tx_status *report,
+ const struct b43_txstatus *status)
{
- struct b43_txstatus status;
- u8 tmp;
-
- status.cookie = le16_to_cpu(hw->cookie);
- status.seq = le16_to_cpu(hw->seq);
- status.phy_stat = hw->phy_stat;
- tmp = hw->count;
- status.frame_count = (tmp >> 4);
- status.rts_count = (tmp & 0x0F);
- tmp = hw->flags;
- status.supp_reason = ((tmp & 0x1C) >> 2);
- status.pm_indicated = !!(tmp & 0x80);
- status.intermediate = !!(tmp & 0x40);
- status.for_ampdu = !!(tmp & 0x20);
- status.acked = !!(tmp & 0x02);
-
- b43_handle_txstatus(dev, &status);
+ bool frame_success = 1;
+
+ if (status->acked) {
+ /* The frame was ACKed. */
+ report->flags |= IEEE80211_TX_STATUS_ACK;
+ } else {
+ /* The frame was not ACKed... */
+ if (!(report->control.flags & IEEE80211_TXCTL_NO_ACK)) {
+ /* ...but we expected an ACK. */
+ frame_success = 0;
+ report->excessive_retries = 1;
+ }
+ }
+ if (status->frame_count == 0) {
+ /* The frame was not transmitted at all. */
+ report->retry_count = 0;
+ } else
+ report->retry_count = status->frame_count - 1;
+
+ return frame_success;
}
/* Stop any TX operation on the device (suspend the hardware queues) */
void b43_tx_suspend(struct b43_wldev *dev)
{
- b43_dma_tx_suspend(dev);
+ if (b43_using_pio_transfers(dev))
+ b43_pio_tx_suspend(dev);
+ else
+ b43_dma_tx_suspend(dev);
}
/* Resume any TX operation on the device (resume the hardware queues) */
void b43_tx_resume(struct b43_wldev *dev)
{
- b43_dma_tx_resume(dev);
-}
-
-#if 0
-static void upload_qos_parms(struct b43_wldev *dev,
- const u16 * parms, u16 offset)
-{
- int i;
-
- for (i = 0; i < B43_NR_QOSPARMS; i++) {
- b43_shm_write16(dev, B43_SHM_SHARED,
- offset + (i * 2), parms[i]);
- }
-}
-#endif
-
-/* Initialize the QoS parameters */
-void b43_qos_init(struct b43_wldev *dev)
-{
- /* FIXME: This function must probably be called from the mac80211
- * config callback. */
- return;
-
- b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF);
- //FIXME kill magic
- b43_write16(dev, 0x688, b43_read16(dev, 0x688) | 0x4);
-
- /*TODO: We might need some stack support here to get the values. */
+ if (b43_using_pio_transfers(dev))
+ b43_pio_tx_resume(dev);
+ else
+ b43_dma_tx_resume(dev);
}
diff --git a/drivers/net/wireless/b43/xmit.h b/drivers/net/wireless/b43/xmit.h
index 41765039552..b05f44e0d62 100644
--- a/drivers/net/wireless/b43/xmit.h
+++ b/drivers/net/wireless/b43/xmit.h
@@ -207,25 +207,24 @@ enum {
B43_TXST_SUPP_ABNACK, /* Afterburner NACK */
};
-/* Transmit Status as received through DMA/PIO on old chips */
-struct b43_hwtxstatus {
- PAD_BYTES(4);
- __le16 cookie;
- u8 flags;
- u8 count;
- PAD_BYTES(2);
- __le16 seq;
- u8 phy_stat;
- PAD_BYTES(1);
-} __attribute__ ((__packed__));
-
/* Receive header for v4 firmware. */
struct b43_rxhdr_fw4 {
__le16 frame_len; /* Frame length */
PAD_BYTES(2);
__le16 phy_status0; /* PHY RX Status 0 */
- __u8 jssi; /* PHY RX Status 1: JSSI */
- __u8 sig_qual; /* PHY RX Status 1: Signal Quality */
+ union {
+ /* RSSI for A/B/G-PHYs */
+ struct {
+ __u8 jssi; /* PHY RX Status 1: JSSI */
+ __u8 sig_qual; /* PHY RX Status 1: Signal Quality */
+ } __attribute__ ((__packed__));
+
+ /* RSSI for N-PHYs */
+ struct {
+ __s8 power0; /* PHY RX Status 1: Power 0 */
+ __s8 power1; /* PHY RX Status 1: Power 1 */
+ } __attribute__ ((__packed__));
+ } __attribute__ ((__packed__));
__le16 phy_status2; /* PHY RX Status 2 */
__le16 phy_status3; /* PHY RX Status 3 */
__le32 mac_status; /* MAC RX status */
@@ -295,25 +294,12 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr);
void b43_handle_txstatus(struct b43_wldev *dev,
const struct b43_txstatus *status);
-
-void b43_handle_hwtxstatus(struct b43_wldev *dev,
- const struct b43_hwtxstatus *hw);
+bool b43_fill_txstatus_report(struct ieee80211_tx_status *report,
+ const struct b43_txstatus *status);
void b43_tx_suspend(struct b43_wldev *dev);
void b43_tx_resume(struct b43_wldev *dev);
-#define B43_NR_QOSPARMS 22
-enum {
- B43_QOSPARM_TXOP = 0,
- B43_QOSPARM_CWMIN,
- B43_QOSPARM_CWMAX,
- B43_QOSPARM_CWCUR,
- B43_QOSPARM_AIFS,
- B43_QOSPARM_BSLOTS,
- B43_QOSPARM_REGGAP,
- B43_QOSPARM_STATUS,
-};
-void b43_qos_init(struct b43_wldev *dev);
/* Helper functions for converting the key-table index from "firmware-format"
* to "raw-format" and back. The firmware API changed for this at some revision.
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-28 07:26:29 +0000