aboutsummaryrefslogtreecommitdiff
path: root/drivers/net/wireless/libertas
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/libertas')
-rw-r--r--drivers/net/wireless/libertas/Makefile2
-rw-r--r--drivers/net/wireless/libertas/cmd.c2
-rw-r--r--drivers/net/wireless/libertas/debugfs.c14
-rw-r--r--drivers/net/wireless/libertas/defs.h3
-rw-r--r--drivers/net/wireless/libertas/dev.h1
-rw-r--r--drivers/net/wireless/libertas/host.h1
-rw-r--r--drivers/net/wireless/libertas/hostcmd.h8
-rw-r--r--drivers/net/wireless/libertas/if_cs.c4
-rw-r--r--drivers/net/wireless/libertas/if_sdio.c20
-rw-r--r--drivers/net/wireless/libertas/if_spi.c1218
-rw-r--r--drivers/net/wireless/libertas/if_spi.h208
-rw-r--r--drivers/net/wireless/libertas/main.c74
-rw-r--r--drivers/net/wireless/libertas/radiotap.h10
-rw-r--r--drivers/net/wireless/libertas/rx.c30
-rw-r--r--drivers/net/wireless/libertas/scan.c2
-rw-r--r--drivers/net/wireless/libertas/tx.c8
-rw-r--r--drivers/net/wireless/libertas/wext.c2
17 files changed, 1513 insertions, 94 deletions
diff --git a/drivers/net/wireless/libertas/Makefile b/drivers/net/wireless/libertas/Makefile
index 02080a3682a..0b691858450 100644
--- a/drivers/net/wireless/libertas/Makefile
+++ b/drivers/net/wireless/libertas/Makefile
@@ -4,8 +4,10 @@ libertas-objs := main.o wext.o rx.o tx.o cmd.o cmdresp.o scan.o 11d.o \
usb8xxx-objs += if_usb.o
libertas_cs-objs += if_cs.o
libertas_sdio-objs += if_sdio.o
+libertas_spi-objs += if_spi.o
obj-$(CONFIG_LIBERTAS) += libertas.o
obj-$(CONFIG_LIBERTAS_USB) += usb8xxx.o
obj-$(CONFIG_LIBERTAS_CS) += libertas_cs.o
obj-$(CONFIG_LIBERTAS_SDIO) += libertas_sdio.o
+obj-$(CONFIG_LIBERTAS_SPI) += libertas_spi.o
diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c
index 639dd02d3d3..8c3605cdc64 100644
--- a/drivers/net/wireless/libertas/cmd.c
+++ b/drivers/net/wireless/libertas/cmd.c
@@ -1649,7 +1649,7 @@ static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
/**
* @brief This function executes next command in command
- * pending queue. It will put fimware back to PS mode
+ * pending queue. It will put firmware back to PS mode
* if applicable.
*
* @param priv A pointer to struct lbs_private structure
diff --git a/drivers/net/wireless/libertas/debugfs.c b/drivers/net/wireless/libertas/debugfs.c
index ec4efd7ff3c..50e28a0cdfe 100644
--- a/drivers/net/wireless/libertas/debugfs.c
+++ b/drivers/net/wireless/libertas/debugfs.c
@@ -629,7 +629,7 @@ static ssize_t lbs_rdrf_write(struct file *file,
res = -EFAULT;
goto out_unlock;
}
- priv->rf_offset = simple_strtoul((char *)buf, NULL, 16);
+ priv->rf_offset = simple_strtoul(buf, NULL, 16);
res = count;
out_unlock:
free_page(addr);
@@ -680,12 +680,12 @@ out_unlock:
}
struct lbs_debugfs_files {
- char *name;
+ const char *name;
int perm;
struct file_operations fops;
};
-static struct lbs_debugfs_files debugfs_files[] = {
+static const struct lbs_debugfs_files debugfs_files[] = {
{ "info", 0444, FOPS(lbs_dev_info, write_file_dummy), },
{ "getscantable", 0444, FOPS(lbs_getscantable,
write_file_dummy), },
@@ -693,7 +693,7 @@ static struct lbs_debugfs_files debugfs_files[] = {
lbs_sleepparams_write), },
};
-static struct lbs_debugfs_files debugfs_events_files[] = {
+static const struct lbs_debugfs_files debugfs_events_files[] = {
{"low_rssi", 0644, FOPS(lbs_lowrssi_read,
lbs_lowrssi_write), },
{"low_snr", 0644, FOPS(lbs_lowsnr_read,
@@ -708,7 +708,7 @@ static struct lbs_debugfs_files debugfs_events_files[] = {
lbs_highsnr_write), },
};
-static struct lbs_debugfs_files debugfs_regs_files[] = {
+static const struct lbs_debugfs_files debugfs_regs_files[] = {
{"rdmac", 0644, FOPS(lbs_rdmac_read, lbs_rdmac_write), },
{"wrmac", 0600, FOPS(NULL, lbs_wrmac_write), },
{"rdbbp", 0644, FOPS(lbs_rdbbp_read, lbs_rdbbp_write), },
@@ -735,7 +735,7 @@ void lbs_debugfs_remove(void)
void lbs_debugfs_init_one(struct lbs_private *priv, struct net_device *dev)
{
int i;
- struct lbs_debugfs_files *files;
+ const struct lbs_debugfs_files *files;
if (!lbs_dir)
goto exit;
@@ -938,7 +938,7 @@ static ssize_t lbs_debugfs_write(struct file *f, const char __user *buf,
return (ssize_t)cnt;
}
-static struct file_operations lbs_debug_fops = {
+static const struct file_operations lbs_debug_fops = {
.owner = THIS_MODULE,
.open = open_file_generic,
.write = lbs_debugfs_write,
diff --git a/drivers/net/wireless/libertas/defs.h b/drivers/net/wireless/libertas/defs.h
index c364e4c01d1..e8dfde39abf 100644
--- a/drivers/net/wireless/libertas/defs.h
+++ b/drivers/net/wireless/libertas/defs.h
@@ -41,6 +41,7 @@
#define LBS_DEB_HEX 0x00200000
#define LBS_DEB_SDIO 0x00400000
#define LBS_DEB_SYSFS 0x00800000
+#define LBS_DEB_SPI 0x01000000
extern unsigned int lbs_debug;
@@ -84,6 +85,7 @@ do { if ((lbs_debug & (grp)) == (grp)) \
#define lbs_deb_thread(fmt, args...) LBS_DEB_LL(LBS_DEB_THREAD, " thread", fmt, ##args)
#define lbs_deb_sdio(fmt, args...) LBS_DEB_LL(LBS_DEB_SDIO, " sdio", fmt, ##args)
#define lbs_deb_sysfs(fmt, args...) LBS_DEB_LL(LBS_DEB_SYSFS, " sysfs", fmt, ##args)
+#define lbs_deb_spi(fmt, args...) LBS_DEB_LL(LBS_DEB_SPI, " spi", fmt, ##args)
#define lbs_pr_info(format, args...) \
printk(KERN_INFO DRV_NAME": " format, ## args)
@@ -263,6 +265,7 @@ static inline void lbs_deb_hex(unsigned int grp, const char *prompt, u8 *buf, in
#define CMD_F_HOSTCMD (1 << 0)
#define FW_CAPINFO_WPA (1 << 0)
+#define FW_CAPINFO_PS (1 << 1)
#define FW_CAPINFO_FIRMWARE_UPGRADE (1 << 13)
#define FW_CAPINFO_BOOT2_UPGRADE (1<<14)
#define FW_CAPINFO_PERSISTENT_CONFIG (1<<15)
diff --git a/drivers/net/wireless/libertas/dev.h b/drivers/net/wireless/libertas/dev.h
index dd682c4cfde..27e81fd97c9 100644
--- a/drivers/net/wireless/libertas/dev.h
+++ b/drivers/net/wireless/libertas/dev.h
@@ -109,7 +109,6 @@ struct lbs_private {
void *card;
struct net_device *dev;
- struct net_device_stats stats;
struct net_device *mesh_dev; /* Virtual device */
struct net_device *rtap_net_dev;
diff --git a/drivers/net/wireless/libertas/host.h b/drivers/net/wireless/libertas/host.h
index 277ff1975bd..d4457ef808a 100644
--- a/drivers/net/wireless/libertas/host.h
+++ b/drivers/net/wireless/libertas/host.h
@@ -66,6 +66,7 @@
#define CMD_802_11_LED_GPIO_CTRL 0x004e
#define CMD_802_11_EEPROM_ACCESS 0x0059
#define CMD_802_11_BAND_CONFIG 0x0058
+#define CMD_GSPI_BUS_CONFIG 0x005a
#define CMD_802_11D_DOMAIN_INFO 0x005b
#define CMD_802_11_KEY_MATERIAL 0x005e
#define CMD_802_11_SLEEP_PARAMS 0x0066
diff --git a/drivers/net/wireless/libertas/hostcmd.h b/drivers/net/wireless/libertas/hostcmd.h
index f6a79a653b7..a899aeb676b 100644
--- a/drivers/net/wireless/libertas/hostcmd.h
+++ b/drivers/net/wireless/libertas/hostcmd.h
@@ -221,6 +221,14 @@ struct cmd_ds_mac_multicast_adr {
u8 maclist[ETH_ALEN * MRVDRV_MAX_MULTICAST_LIST_SIZE];
} __attribute__ ((packed));
+struct cmd_ds_gspi_bus_config {
+ struct cmd_header hdr;
+ __le16 action;
+ __le16 bus_delay_mode;
+ __le16 host_time_delay_to_read_port;
+ __le16 host_time_delay_to_read_register;
+} __attribute__ ((packed));
+
struct cmd_ds_802_11_authenticate {
u8 macaddr[ETH_ALEN];
u8 authtype;
diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c
index 842a08d1f10..cedeac6322f 100644
--- a/drivers/net/wireless/libertas/if_cs.c
+++ b/drivers/net/wireless/libertas/if_cs.c
@@ -151,7 +151,7 @@ static int if_cs_poll_while_fw_download(struct if_cs_card *card, uint addr, u8 r
for (i = 0; i < 100000; i++) {
u8 val = if_cs_read8(card, addr);
if (val == reg)
- return i;
+ return 0;
udelay(5);
}
return -ETIME;
@@ -421,7 +421,7 @@ static struct sk_buff *if_cs_receive_data(struct lbs_private *priv)
len = if_cs_read16(priv->card, IF_CS_READ_LEN);
if (len == 0 || len > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE) {
lbs_pr_err("card data buffer has invalid # of bytes (%d)\n", len);
- priv->stats.rx_dropped++;
+ priv->dev->stats.rx_dropped++;
goto dat_err;
}
diff --git a/drivers/net/wireless/libertas/if_sdio.c b/drivers/net/wireless/libertas/if_sdio.c
index 4519d7314f4..76f4c653d64 100644
--- a/drivers/net/wireless/libertas/if_sdio.c
+++ b/drivers/net/wireless/libertas/if_sdio.c
@@ -95,6 +95,8 @@ struct if_sdio_card {
spinlock_t lock;
struct if_sdio_packet *packets;
+
+ struct workqueue_struct *workqueue;
struct work_struct packet_worker;
};
@@ -209,6 +211,9 @@ static int if_sdio_handle_event(struct if_sdio_card *card,
event = sdio_readb(card->func, IF_SDIO_EVENT, &ret);
if (ret)
goto out;
+
+ /* right shift 3 bits to get the event id */
+ event >>= 3;
} else {
if (size < 4) {
lbs_deb_sdio("event packet too small (%d bytes)\n",
@@ -743,7 +748,7 @@ static int if_sdio_host_to_card(struct lbs_private *priv,
spin_unlock_irqrestore(&card->lock, flags);
- schedule_work(&card->packet_worker);
+ queue_work(card->workqueue, &card->packet_worker);
ret = 0;
@@ -833,6 +838,7 @@ static int if_sdio_probe(struct sdio_func *func,
card->func = func;
card->model = model;
spin_lock_init(&card->lock);
+ card->workqueue = create_workqueue("libertas_sdio");
INIT_WORK(&card->packet_worker, if_sdio_host_to_card_worker);
for (i = 0;i < ARRAY_SIZE(if_sdio_models);i++) {
@@ -921,15 +927,17 @@ static int if_sdio_probe(struct sdio_func *func,
if (ret)
goto err_activate_card;
+ if (priv->fwcapinfo & FW_CAPINFO_PS)
+ priv->ps_supported = 1;
+
out:
lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret);
return ret;
err_activate_card:
- flush_scheduled_work();
- free_netdev(priv->dev);
- kfree(priv);
+ flush_workqueue(card->workqueue);
+ lbs_remove_card(priv);
reclaim:
sdio_claim_host(func);
release_int:
@@ -939,6 +947,7 @@ disable:
release:
sdio_release_host(func);
free:
+ destroy_workqueue(card->workqueue);
while (card->packets) {
packet = card->packets;
card->packets = card->packets->next;
@@ -965,7 +974,8 @@ static void if_sdio_remove(struct sdio_func *func)
lbs_stop_card(card->priv);
lbs_remove_card(card->priv);
- flush_scheduled_work();
+ flush_workqueue(card->workqueue);
+ destroy_workqueue(card->workqueue);
sdio_claim_host(func);
sdio_release_irq(func);
diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c
new file mode 100644
index 00000000000..07311e71af9
--- /dev/null
+++ b/drivers/net/wireless/libertas/if_spi.c
@@ -0,0 +1,1218 @@
+/*
+ * linux/drivers/net/wireless/libertas/if_spi.c
+ *
+ * Driver for Marvell SPI WLAN cards.
+ *
+ * Copyright 2008 Analog Devices Inc.
+ *
+ * Authors:
+ * Andrey Yurovsky <andrey@cozybit.com>
+ * Colin McCabe <colin@cozybit.com>
+ *
+ * Inspired by if_sdio.c, Copyright 2007-2008 Pierre Ossman
+ *
+ * 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.
+ */
+
+#include <linux/moduleparam.h>
+#include <linux/firmware.h>
+#include <linux/gpio.h>
+#include <linux/jiffies.h>
+#include <linux/kthread.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include <linux/spi/libertas_spi.h>
+#include <linux/spi/spi.h>
+
+#include "host.h"
+#include "decl.h"
+#include "defs.h"
+#include "dev.h"
+#include "if_spi.h"
+
+struct if_spi_packet {
+ struct list_head list;
+ u16 blen;
+ u8 buffer[0] __attribute__((aligned(4)));
+};
+
+struct if_spi_card {
+ struct spi_device *spi;
+ struct lbs_private *priv;
+ struct libertas_spi_platform_data *pdata;
+
+ char helper_fw_name[FIRMWARE_NAME_MAX];
+ char main_fw_name[FIRMWARE_NAME_MAX];
+
+ /* The card ID and card revision, as reported by the hardware. */
+ u16 card_id;
+ u8 card_rev;
+
+ /* Pin number for our GPIO chip-select. */
+ /* TODO: Once the generic SPI layer has some additional features, we
+ * should take this out and use the normal chip select here.
+ * We need support for chip select delays, and not dropping chipselect
+ * after each word. */
+ int gpio_cs;
+
+ /* The last time that we initiated an SPU operation */
+ unsigned long prev_xfer_time;
+
+ int use_dummy_writes;
+ unsigned long spu_port_delay;
+ unsigned long spu_reg_delay;
+
+ /* Handles all SPI communication (except for FW load) */
+ struct task_struct *spi_thread;
+ int run_thread;
+
+ /* Used to wake up the spi_thread */
+ struct semaphore spi_ready;
+ struct semaphore spi_thread_terminated;
+
+ u8 cmd_buffer[IF_SPI_CMD_BUF_SIZE];
+
+ /* A buffer of incoming packets from libertas core.
+ * Since we can't sleep in hw_host_to_card, we have to buffer
+ * them. */
+ struct list_head cmd_packet_list;
+ struct list_head data_packet_list;
+
+ /* Protects cmd_packet_list and data_packet_list */
+ spinlock_t buffer_lock;
+};
+
+static void free_if_spi_card(struct if_spi_card *card)
+{
+ struct list_head *cursor, *next;
+ struct if_spi_packet *packet;
+
+ BUG_ON(card->run_thread);
+ list_for_each_safe(cursor, next, &card->cmd_packet_list) {
+ packet = container_of(cursor, struct if_spi_packet, list);
+ list_del(&packet->list);
+ kfree(packet);
+ }
+ list_for_each_safe(cursor, next, &card->data_packet_list) {
+ packet = container_of(cursor, struct if_spi_packet, list);
+ list_del(&packet->list);
+ kfree(packet);
+ }
+ spi_set_drvdata(card->spi, NULL);
+ kfree(card);
+}
+
+static struct chip_ident chip_id_to_device_name[] = {
+ { .chip_id = 0x04, .name = 8385 },
+ { .chip_id = 0x0b, .name = 8686 },
+};
+
+/*
+ * SPI Interface Unit Routines
+ *
+ * The SPU sits between the host and the WLAN module.
+ * All communication with the firmware is through SPU transactions.
+ *
+ * First we have to put a SPU register name on the bus. Then we can
+ * either read from or write to that register.
+ *
+ * For 16-bit transactions, byte order on the bus is big-endian.
+ * We don't have to worry about that here, though.
+ * The translation takes place in the SPI routines.
+ */
+
+static void spu_transaction_init(struct if_spi_card *card)
+{
+ if (!time_after(jiffies, card->prev_xfer_time + 1)) {
+ /* Unfortunately, the SPU requires a delay between successive
+ * transactions. If our last transaction was more than a jiffy
+ * ago, we have obviously already delayed enough.
+ * If not, we have to busy-wait to be on the safe side. */
+ ndelay(400);
+ }
+ gpio_set_value(card->gpio_cs, 0); /* assert CS */
+}
+
+static void spu_transaction_finish(struct if_spi_card *card)
+{
+ gpio_set_value(card->gpio_cs, 1); /* drop CS */
+ card->prev_xfer_time = jiffies;
+}
+
+/* Write out a byte buffer to an SPI register,
+ * using a series of 16-bit transfers. */
+static int spu_write(struct if_spi_card *card, u16 reg, const u8 *buf, int len)
+{
+ int err = 0;
+ u16 reg_out = reg | IF_SPI_WRITE_OPERATION_MASK;
+
+ /* You must give an even number of bytes to the SPU, even if it
+ * doesn't care about the last one. */
+ BUG_ON(len & 0x1);
+
+ spu_transaction_init(card);
+
+ /* write SPU register index */
+ err = spi_write(card->spi, (u8 *)&reg_out, sizeof(u16));
+ if (err)
+ goto out;
+
+ err = spi_write(card->spi, buf, len);
+
+out:
+ spu_transaction_finish(card);
+ return err;
+}
+
+static inline int spu_write_u16(struct if_spi_card *card, u16 reg, u16 val)
+{
+ return spu_write(card, reg, (u8 *)&val, sizeof(u16));
+}
+
+static inline int spu_write_u32(struct if_spi_card *card, u16 reg, u32 val)
+{
+ /* The lower 16 bits are written first. */
+ u16 out[2];
+ out[0] = val & 0xffff;
+ out[1] = (val & 0xffff0000) >> 16;
+ return spu_write(card, reg, (u8 *)&out, sizeof(u32));
+}
+
+static inline int spu_reg_is_port_reg(u16 reg)
+{
+ switch (reg) {
+ case IF_SPI_IO_RDWRPORT_REG:
+ case IF_SPI_CMD_RDWRPORT_REG:
+ case IF_SPI_DATA_RDWRPORT_REG:
+ return 1;
+ default:
+ return 0;
+ }
+}
+
+static int spu_read(struct if_spi_card *card, u16 reg, u8 *buf, int len)
+{
+ unsigned int i, delay;
+ int err = 0;
+ u16 zero = 0;
+ u16 reg_out = reg | IF_SPI_READ_OPERATION_MASK;
+
+ /* You must take an even number of bytes from the SPU, even if you
+ * don't care about the last one. */
+ BUG_ON(len & 0x1);
+
+ spu_transaction_init(card);
+
+ /* write SPU register index */
+ err = spi_write(card->spi, (u8 *)&reg_out, sizeof(u16));
+ if (err)
+ goto out;
+
+ delay = spu_reg_is_port_reg(reg) ? card->spu_port_delay :
+ card->spu_reg_delay;
+ if (card->use_dummy_writes) {
+ /* Clock in dummy cycles while the SPU fills the FIFO */
+ for (i = 0; i < delay / 16; ++i) {
+ err = spi_write(card->spi, (u8 *)&zero, sizeof(u16));
+ if (err)
+ return err;
+ }
+ } else {
+ /* Busy-wait while the SPU fills the FIFO */
+ ndelay(100 + (delay * 10));
+ }
+
+ /* read in data */
+ err = spi_read(card->spi, buf, len);
+
+out:
+ spu_transaction_finish(card);
+ return err;
+}
+
+/* Read 16 bits from an SPI register */
+static inline int spu_read_u16(struct if_spi_card *card, u16 reg, u16 *val)
+{
+ return spu_read(card, reg, (u8 *)val, sizeof(u16));
+}
+
+/* Read 32 bits from an SPI register.
+ * The low 16 bits are read first. */
+static int spu_read_u32(struct if_spi_card *card, u16 reg, u32 *val)
+{
+ u16 buf[2];
+ int err;
+ err = spu_read(card, reg, (u8 *)buf, sizeof(u32));
+ if (!err)
+ *val = buf[0] | (buf[1] << 16);
+ return err;
+}
+
+/* Keep reading 16 bits from an SPI register until you get the correct result.
+ *
+ * If mask = 0, the correct result is any non-zero number.
+ * If mask != 0, the correct result is any number where
+ * number & target_mask == target
+ *
+ * Returns -ETIMEDOUT if a second passes without the correct result. */
+static int spu_wait_for_u16(struct if_spi_card *card, u16 reg,
+ u16 target_mask, u16 target)
+{
+ int err;
+ unsigned long timeout = jiffies + 5*HZ;
+ while (1) {
+ u16 val;
+ err = spu_read_u16(card, reg, &val);
+ if (err)
+ return err;
+ if (target_mask) {
+ if ((val & target_mask) == target)
+ return 0;
+ } else {
+ if (val)
+ return 0;
+ }
+ udelay(100);
+ if (time_after(jiffies, timeout)) {
+ lbs_pr_err("%s: timeout with val=%02x, "
+ "target_mask=%02x, target=%02x\n",
+ __func__, val, target_mask, target);
+ return -ETIMEDOUT;
+ }
+ }
+}
+
+/* Read 16 bits from an SPI register until you receive a specific value.
+ * Returns -ETIMEDOUT if a 4 tries pass without success. */
+static int spu_wait_for_u32(struct if_spi_card *card, u32 reg, u32 target)
+{
+ int err, try;
+ for (try = 0; try < 4; ++try) {
+ u32 val = 0;
+ err = spu_read_u32(card, reg, &val);
+ if (err)
+ return err;
+ if (val == target)
+ return 0;
+ mdelay(100);
+ }
+ return -ETIMEDOUT;
+}
+
+static int spu_set_interrupt_mode(struct if_spi_card *card,
+ int suppress_host_int,
+ int auto_int)
+{
+ int err = 0;
+
+ /* We can suppress a host interrupt by clearing the appropriate
+ * bit in the "host interrupt status mask" register */
+ if (suppress_host_int) {
+ err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_MASK_REG, 0);
+ if (err)
+ return err;
+ } else {
+ err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_MASK_REG,
+ IF_SPI_HISM_TX_DOWNLOAD_RDY |
+ IF_SPI_HISM_RX_UPLOAD_RDY |
+ IF_SPI_HISM_CMD_DOWNLOAD_RDY |
+ IF_SPI_HISM_CARDEVENT |
+ IF_SPI_HISM_CMD_UPLOAD_RDY);
+ if (err)
+ return err;
+ }
+
+ /* If auto-interrupts are on, the completion of certain transactions
+ * will trigger an interrupt automatically. If auto-interrupts
+ * are off, we need to set the "Card Interrupt Cause" register to
+ * trigger a card interrupt. */
+ if (auto_int) {
+ err = spu_write_u16(card, IF_SPI_HOST_INT_CTRL_REG,
+ IF_SPI_HICT_TX_DOWNLOAD_OVER_AUTO |
+ IF_SPI_HICT_RX_UPLOAD_OVER_AUTO |
+ IF_SPI_HICT_CMD_DOWNLOAD_OVER_AUTO |
+ IF_SPI_HICT_CMD_UPLOAD_OVER_AUTO);
+ if (err)
+ return err;
+ } else {
+ err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_MASK_REG, 0);
+ if (err)
+ return err;
+ }
+ return err;
+}
+
+static int spu_get_chip_revision(struct if_spi_card *card,
+ u16 *card_id, u8 *card_rev)
+{
+ int err = 0;
+ u32 dev_ctrl;
+ err = spu_read_u32(card, IF_SPI_DEVICEID_CTRL_REG, &dev_ctrl);
+ if (err)
+ return err;
+ *card_id = IF_SPI_DEVICEID_CTRL_REG_TO_CARD_ID(dev_ctrl);
+ *card_rev = IF_SPI_DEVICEID_CTRL_REG_TO_CARD_REV(dev_ctrl);
+ return err;
+}
+
+static int spu_set_bus_mode(struct if_spi_card *card, u16 mode)
+{
+ int err = 0;
+ u16 rval;
+ /* set bus mode */
+ err = spu_write_u16(card, IF_SPI_SPU_BUS_MODE_REG, mode);
+ if (err)
+ return err;
+ /* Check that we were able to read back what we just wrote. */
+ err = spu_read_u16(card, IF_SPI_SPU_BUS_MODE_REG, &rval);
+ if (err)
+ return err;
+ if (rval != mode) {
+ lbs_pr_err("Can't read bus mode register.\n");
+ return -EIO;
+ }
+ return 0;
+}
+
+static int spu_init(struct if_spi_card *card, int use_dummy_writes)
+{
+ int err = 0;
+ u32 delay;
+
+ /* We have to start up in timed delay mode so that we can safely
+ * read the Delay Read Register. */
+ card->use_dummy_writes = 0;
+ err = spu_set_bus_mode(card,
+ IF_SPI_BUS_MODE_SPI_CLOCK_PHASE_RISING |
+ IF_SPI_BUS_MODE_DELAY_METHOD_TIMED |
+ IF_SPI_BUS_MODE_16_BIT_ADDRESS_16_BIT_DATA);
+ if (err)
+ return err;
+ card->spu_port_delay = 1000;
+ card->spu_reg_delay = 1000;
+ err = spu_read_u32(card, IF_SPI_DELAY_READ_REG, &delay);
+ if (err)
+ return err;
+ card->spu_port_delay = delay & 0x0000ffff;
+ card->spu_reg_delay = (delay & 0xffff0000) >> 16;
+
+ /* If dummy clock delay mode has been requested, switch to it now */
+ if (use_dummy_writes) {
+ card->use_dummy_writes = 1;
+ err = spu_set_bus_mode(card,
+ IF_SPI_BUS_MODE_SPI_CLOCK_PHASE_RISING |
+ IF_SPI_BUS_MODE_DELAY_METHOD_DUMMY_CLOCK |
+ IF_SPI_BUS_MODE_16_BIT_ADDRESS_16_BIT_DATA);
+ if (err)
+ return err;
+ }
+
+ lbs_deb_spi("Initialized SPU unit. "
+ "spu_port_delay=0x%04lx, spu_reg_delay=0x%04lx\n",
+ card->spu_port_delay, card->spu_reg_delay);
+ return err;
+}
+
+/*
+ * Firmware Loading
+ */
+
+static int if_spi_prog_helper_firmware(struct if_spi_card *card)
+{
+ int err = 0;
+ const struct firmware *firmware = NULL;
+ int bytes_remaining;
+ const u8 *fw;
+ u8 temp[HELPER_FW_LOAD_CHUNK_SZ];
+ struct spi_device *spi = card->spi;
+
+ lbs_deb_enter(LBS_DEB_SPI);
+
+ err = spu_set_interrupt_mode(card, 1, 0);
+ if (err)
+ goto out;
+ /* Get helper firmware image */
+ err = request_firmware(&firmware, card->helper_fw_name, &spi->dev);
+ if (err) {
+ lbs_pr_err("request_firmware failed with err = %d\n", err);
+ goto out;
+ }
+ bytes_remaining = firmware->size;
+ fw = firmware->data;
+
+ /* Load helper firmware image */
+ while (bytes_remaining > 0) {
+ /* Scratch pad 1 should contain the number of bytes we
+ * want to download to the firmware */
+ err = spu_write_u16(card, IF_SPI_SCRATCH_1_REG,
+ HELPER_FW_LOAD_CHUNK_SZ);
+ if (err)
+ goto release_firmware;
+
+ err = spu_wait_for_u16(card, IF_SPI_HOST_INT_STATUS_REG,
+ IF_SPI_HIST_CMD_DOWNLOAD_RDY,
+ IF_SPI_HIST_CMD_DOWNLOAD_RDY);
+ if (err)
+ goto release_firmware;
+
+ /* Feed the data into the command read/write port reg
+ * in chunks of 64 bytes */
+ memset(temp, 0, sizeof(temp));
+ memcpy(temp, fw,
+ min(bytes_remaining, HELPER_FW_LOAD_CHUNK_SZ));
+ mdelay(10);
+ err = spu_write(card, IF_SPI_CMD_RDWRPORT_REG,
+ temp, HELPER_FW_LOAD_CHUNK_SZ);
+ if (err)
+ goto release_firmware;
+
+ /* Interrupt the boot code */
+ err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG, 0);
+ if (err)
+ goto release_firmware;
+ err = spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG,
+ IF_SPI_CIC_CMD_DOWNLOAD_OVER);
+ if (err)
+ goto release_firmware;
+ bytes_remaining -= HELPER_FW_LOAD_CHUNK_SZ;
+ fw += HELPER_FW_LOAD_CHUNK_SZ;
+ }
+
+ /* Once the helper / single stage firmware download is complete,
+ * write 0 to scratch pad 1 and interrupt the
+ * bootloader. This completes the helper download. */
+ err = spu_write_u16(card, IF_SPI_SCRATCH_1_REG, FIRMWARE_DNLD_OK);
+ if (err)
+ goto release_firmware;
+ err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG, 0);
+ if (err)
+ goto release_firmware;
+ err = spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG,
+ IF_SPI_CIC_CMD_DOWNLOAD_OVER);
+ goto release_firmware;
+
+ lbs_deb_spi("waiting for helper to boot...\n");
+
+release_firmware:
+ release_firmware(firmware);
+out:
+ if (err)
+ lbs_pr_err("failed to load helper firmware (err=%d)\n", err);
+ lbs_deb_leave_args(LBS_DEB_SPI, "err %d", err);
+ return err;
+}
+
+/* Returns the length of the next packet the firmware expects us to send
+ * Sets crc_err if the previous transfer had a CRC error. */
+static int if_spi_prog_main_firmware_check_len(struct if_spi_card *card,
+ int *crc_err)
+{
+ u16 len;
+ int err = 0;
+
+ /* wait until the host interrupt status register indicates
+ * that we are ready to download */
+ err = spu_wait_for_u16(card, IF_SPI_HOST_INT_STATUS_REG,
+ IF_SPI_HIST_CMD_DOWNLOAD_RDY,
+ IF_SPI_HIST_CMD_DOWNLOAD_RDY);
+ if (err) {
+ lbs_pr_err("timed out waiting for host_int_status\n");
+ return err;
+ }
+
+ /* Ask the device how many bytes of firmware it wants. */
+ err = spu_read_u16(card, IF_SPI_SCRATCH_1_REG, &len);
+ if (err)
+ return err;
+
+ if (len > IF_SPI_CMD_BUF_SIZE) {
+ lbs_pr_err("firmware load device requested a larger "
+ "tranfer than we are prepared to "
+ "handle. (len = %d)\n", len);
+ return -EIO;
+ }
+ if (len & 0x1) {
+ lbs_deb_spi("%s: crc error\n", __func__);
+ len &= ~0x1;
+ *crc_err = 1;
+ } else
+ *crc_err = 0;
+
+ return len;
+}
+
+static int if_spi_prog_main_firmware(struct if_spi_card *card)
+{
+ int len, prev_len;
+ int bytes, crc_err = 0, err = 0;
+ const struct firmware *firmware = NULL;
+ const u8 *fw;
+ struct spi_device *spi = card->spi;
+ u16 num_crc_errs;
+
+ lbs_deb_enter(LBS_DEB_SPI);
+
+ err = spu_set_interrupt_mode(card, 1, 0);
+ if (err)
+ goto out;
+
+ /* Get firmware image */
+ err = request_firmware(&firmware, card->main_fw_name, &spi->dev);
+ if (err) {
+ lbs_pr_err("%s: can't get firmware '%s' from kernel. "
+ "err = %d\n", __func__, card->main_fw_name, err);
+ goto out;
+ }
+
+ err = spu_wait_for_u16(card, IF_SPI_SCRATCH_1_REG, 0, 0);
+ if (err) {
+ lbs_pr_err("%s: timed out waiting for initial "
+ "scratch reg = 0\n", __func__);
+ goto release_firmware;
+ }
+
+ num_crc_errs = 0;
+ prev_len = 0;
+ bytes = firmware->size;
+ fw = firmware->data;
+ while ((len = if_spi_prog_main_firmware_check_len(card, &crc_err))) {
+ if (len < 0) {
+ err = len;
+ goto release_firmware;
+ }
+ if (bytes < 0) {
+ /* If there are no more bytes left, we would normally
+ * expect to have terminated with len = 0 */
+ lbs_pr_err("Firmware load wants more bytes "
+ "than we have to offer.\n");
+ break;
+ }
+ if (crc_err) {
+ /* Previous transfer failed. */
+ if (++num_crc_errs > MAX_MAIN_FW_LOAD_CRC_ERR) {
+ lbs_pr_err("Too many CRC errors encountered "
+ "in firmware load.\n");
+ err = -EIO;
+ goto release_firmware;
+ }
+ } else {
+ /* Previous transfer succeeded. Advance counters. */
+ bytes -= prev_len;
+ fw += prev_len;
+ }
+ if (bytes < len) {
+ memset(card->cmd_buffer, 0, len);
+ memcpy(card->cmd_buffer, fw, bytes);
+ } else
+ memcpy(card->cmd_buffer, fw, len);
+
+ err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG, 0);
+ if (err)
+ goto release_firmware;
+ err = spu_write(card, IF_SPI_CMD_RDWRPORT_REG,
+ card->cmd_buffer, len);
+ if (err)
+ goto release_firmware;
+ err = spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG ,
+ IF_SPI_CIC_CMD_DOWNLOAD_OVER);
+ if (err)
+ goto release_firmware;
+ prev_len = len;
+ }
+ if (bytes > prev_len) {
+ lbs_pr_err("firmware load wants fewer bytes than "
+ "we have to offer.\n");
+ }
+
+ /* Confirm firmware download */
+ err = spu_wait_for_u32(card, IF_SPI_SCRATCH_4_REG,
+ SUCCESSFUL_FW_DOWNLOAD_MAGIC);
+ if (err) {
+ lbs_pr_err("failed to confirm the firmware download\n");
+ goto release_firmware;
+ }
+
+release_firmware:
+ release_firmware(firmware);
+
+out:
+ if (err)
+ lbs_pr_err("failed to load firmware (err=%d)\n", err);
+ lbs_deb_leave_args(LBS_DEB_SPI, "err %d", err);
+ return err;
+}
+
+/*
+ * SPI Transfer Thread
+ *
+ * The SPI thread handles all SPI transfers, so there is no need for a lock.
+ */
+
+/* Move a command from the card to the host */
+static int if_spi_c2h_cmd(struct if_spi_card *card)
+{
+ struct lbs_private *priv = card->priv;
+ unsigned long flags;
+ int err = 0;
+ u16 len;
+ u8 i;
+
+ /* We need a buffer big enough to handle whatever people send to
+ * hw_host_to_card */
+ BUILD_BUG_ON(IF_SPI_CMD_BUF_SIZE < LBS_CMD_BUFFER_SIZE);
+ BUILD_BUG_ON(IF_SPI_CMD_BUF_SIZE < LBS_UPLD_SIZE);
+
+ /* It's just annoying if the buffer size isn't a multiple of 4, because
+ * then we might have len < IF_SPI_CMD_BUF_SIZE but
+ * ALIGN(len, 4) > IF_SPI_CMD_BUF_SIZE */
+ BUILD_BUG_ON(IF_SPI_CMD_BUF_SIZE % 4 != 0);
+
+ lbs_deb_enter(LBS_DEB_SPI);
+
+ /* How many bytes are there to read? */
+ err = spu_read_u16(card, IF_SPI_SCRATCH_2_REG, &len);
+ if (err)
+ goto out;
+ if (!len) {
+ lbs_pr_err("%s: error: card has no data for host\n",
+ __func__);
+ err = -EINVAL;
+ goto out;
+ } else if (len > IF_SPI_CMD_BUF_SIZE) {
+ lbs_pr_err("%s: error: response packet too large: "
+ "%d bytes, but maximum is %d\n",
+ __func__, len, IF_SPI_CMD_BUF_SIZE);
+ err = -EINVAL;
+ goto out;
+ }
+
+ /* Read the data from the WLAN module into our command buffer */
+ err = spu_read(card, IF_SPI_CMD_RDWRPORT_REG,
+ card->cmd_buffer, ALIGN(len, 4));
+ if (err)
+ goto out;
+
+ spin_lock_irqsave(&priv->driver_lock, flags);
+ i = (priv->resp_idx == 0) ? 1 : 0;
+ BUG_ON(priv->resp_len[i]);
+ priv->resp_len[i] = len;
+ memcpy(priv->resp_buf[i], card->cmd_buffer, len);
+ lbs_notify_command_response(priv, i);
+ spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+out:
+ if (err)
+ lbs_pr_err("%s: err=%d\n", __func__, err);
+ lbs_deb_leave(LBS_DEB_SPI);
+ return err;
+}
+
+/* Move data from the card to the host */
+static int if_spi_c2h_data(struct if_spi_card *card)
+{
+ struct sk_buff *skb;
+ char *data;
+ u16 len;
+ int err = 0;
+
+ lbs_deb_enter(LBS_DEB_SPI);
+
+ /* How many bytes are there to read? */
+ err = spu_read_u16(card, IF_SPI_SCRATCH_1_REG, &len);
+ if (err)
+ goto out;
+ if (!len) {
+ lbs_pr_err("%s: error: card has no data for host\n",
+ __func__);
+ err = -EINVAL;
+ goto out;
+ } else if (len > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE) {
+ lbs_pr_err("%s: error: card has %d bytes of data, but "
+ "our maximum skb size is %u\n",
+ __func__, len, MRVDRV_ETH_RX_PACKET_BUFFER_SIZE);
+ err = -EINVAL;
+ goto out;
+ }
+
+ /* TODO: should we allocate a smaller skb if we have less data? */
+ skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE);
+ if (!skb) {
+ err = -ENOBUFS;
+ goto out;
+ }
+ skb_reserve(skb, IPFIELD_ALIGN_OFFSET);
+ data = skb_put(skb, len);
+
+ /* Read the data from the WLAN module into our skb... */
+ err = spu_read(card, IF_SPI_DATA_RDWRPORT_REG, data, ALIGN(len, 4));
+ if (err)
+ goto free_skb;
+
+ /* pass the SKB to libertas */
+ err = lbs_process_rxed_packet(card->priv, skb);
+ if (err)
+ goto free_skb;
+
+ /* success */
+ goto out;
+
+free_skb:
+ dev_kfree_skb(skb);
+out:
+ if (err)
+ lbs_pr_err("%s: err=%d\n", __func__, err);
+ lbs_deb_leave(LBS_DEB_SPI);
+ return err;
+}
+
+/* Move data or a command from the host to the card. */
+static void if_spi_h2c(struct if_spi_card *card,
+ struct if_spi_packet *packet, int type)
+{
+ int err = 0;
+ u16 int_type, port_reg;
+
+ switch (type) {
+ case MVMS_DAT:
+ int_type = IF_SPI_CIC_TX_DOWNLOAD_OVER;
+ port_reg = IF_SPI_DATA_RDWRPORT_REG;
+ break;
+ case MVMS_CMD:
+ int_type = IF_SPI_CIC_CMD_DOWNLOAD_OVER;
+ port_reg = IF_SPI_CMD_RDWRPORT_REG;
+ break;
+ default:
+ lbs_pr_err("can't transfer buffer of type %d\n", type);
+ err = -EINVAL;
+ goto out;
+ }
+
+ /* Write the data to the card */
+ err = spu_write(card, port_reg, packet->buffer, packet->blen);
+ if (err)
+ goto out;
+
+out:
+ kfree(packet);
+
+ if (err)
+ lbs_pr_err("%s: error %d\n", __func__, err);
+}
+
+/* Inform the host about a card event */
+static void if_spi_e2h(struct if_spi_card *card)
+{
+ int err = 0;
+ unsigned long flags;
+ u32 cause;
+ struct lbs_private *priv = card->priv;
+
+ err = spu_read_u32(card, IF_SPI_SCRATCH_3_REG, &cause);
+ if (err)
+ goto out;
+
+ spin_lock_irqsave(&priv->driver_lock, flags);
+ lbs_queue_event(priv, cause & 0xff);
+ spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+out:
+ if (err)
+ lbs_pr_err("%s: error %d\n", __func__, err);
+}
+
+static int lbs_spi_thread(void *data)
+{
+ int err;
+ struct if_spi_card *card = data;
+ u16 hiStatus;
+ unsigned long flags;
+ struct if_spi_packet *packet;
+
+ while (1) {
+ /* Wait to be woken up by one of two things. First, our ISR
+ * could tell us that something happened on the WLAN.
+ * Secondly, libertas could call hw_host_to_card with more
+ * data, which we might be able to send.
+ */
+ do {
+ err = down_interruptible(&card->spi_ready);
+ if (!card->run_thread) {
+ up(&card->spi_thread_terminated);
+ do_exit(0);
+ }
+ } while (err == EINTR);
+
+ /* Read the host interrupt status register to see what we
+ * can do. */
+ err = spu_read_u16(card, IF_SPI_HOST_INT_STATUS_REG,
+ &hiStatus);
+ if (err) {
+ lbs_pr_err("I/O error\n");
+ goto err;
+ }
+
+ if (hiStatus & IF_SPI_HIST_CMD_UPLOAD_RDY)
+ err = if_spi_c2h_cmd(card);
+ if (err)
+ goto err;
+ if (hiStatus & IF_SPI_HIST_RX_UPLOAD_RDY)
+ err = if_spi_c2h_data(card);
+ if (err)
+ goto err;
+ if (hiStatus & IF_SPI_HIST_CMD_DOWNLOAD_RDY) {
+ /* This means two things. First of all,
+ * if there was a previous command sent, the card has
+ * successfully received it.
+ * Secondly, it is now ready to download another
+ * command.
+ */
+ lbs_host_to_card_done(card->priv);
+
+ /* Do we have any command packets from the host to
+ * send? */
+ packet = NULL;
+ spin_lock_irqsave(&card->buffer_lock, flags);
+ if (!list_empty(&card->cmd_packet_list)) {
+ packet = (struct if_spi_packet *)(card->
+ cmd_packet_list.next);
+ list_del(&packet->list);
+ }
+ spin_unlock_irqrestore(&card->buffer_lock, flags);
+
+ if (packet)
+ if_spi_h2c(card, packet, MVMS_CMD);
+ }
+ if (hiStatus & IF_SPI_HIST_TX_DOWNLOAD_RDY) {
+ /* Do we have any data packets from the host to
+ * send? */
+ packet = NULL;
+ spin_lock_irqsave(&card->buffer_lock, flags);
+ if (!list_empty(&card->data_packet_list)) {
+ packet = (struct if_spi_packet *)(card->
+ data_packet_list.next);
+ list_del(&packet->list);
+ }
+ spin_unlock_irqrestore(&card->buffer_lock, flags);
+
+ if (packet)
+ if_spi_h2c(card, packet, MVMS_DAT);
+ }
+ if (hiStatus & IF_SPI_HIST_CARD_EVENT)
+ if_spi_e2h(card);
+
+err:
+ if (err)
+ lbs_pr_err("%s: got error %d\n", __func__, err);
+ }
+}
+
+/* Block until lbs_spi_thread thread has terminated */
+static void if_spi_terminate_spi_thread(struct if_spi_card *card)
+{
+ /* It would be nice to use kthread_stop here, but that function
+ * can't wake threads waiting for a semaphore. */
+ card->run_thread = 0;
+ up(&card->spi_ready);
+ down(&card->spi_thread_terminated);
+}
+
+/*
+ * Host to Card
+ *
+ * Called from Libertas to transfer some data to the WLAN device
+ * We can't sleep here. */
+static int if_spi_host_to_card(struct lbs_private *priv,
+ u8 type, u8 *buf, u16 nb)
+{
+ int err = 0;
+ unsigned long flags;
+ struct if_spi_card *card = priv->card;
+ struct if_spi_packet *packet;
+ u16 blen;
+
+ lbs_deb_enter_args(LBS_DEB_SPI, "type %d, bytes %d", type, nb);
+
+ if (nb == 0) {
+ lbs_pr_err("%s: invalid size requested: %d\n", __func__, nb);
+ err = -EINVAL;
+ goto out;
+ }
+ blen = ALIGN(nb, 4);
+ packet = kzalloc(sizeof(struct if_spi_packet) + blen, GFP_ATOMIC);
+ if (!packet) {
+ err = -ENOMEM;
+ goto out;
+ }
+ packet->blen = blen;
+ memcpy(packet->buffer, buf, nb);
+ memset(packet->buffer + nb, 0, blen - nb);
+
+ switch (type) {
+ case MVMS_CMD:
+ priv->dnld_sent = DNLD_CMD_SENT;
+ spin_lock_irqsave(&card->buffer_lock, flags);
+ list_add_tail(&packet->list, &card->cmd_packet_list);
+ spin_unlock_irqrestore(&card->buffer_lock, flags);
+ break;
+ case MVMS_DAT:
+ priv->dnld_sent = DNLD_DATA_SENT;
+ spin_lock_irqsave(&card->buffer_lock, flags);
+ list_add_tail(&packet->list, &card->data_packet_list);
+ spin_unlock_irqrestore(&card->buffer_lock, flags);
+ break;
+ default:
+ lbs_pr_err("can't transfer buffer of type %d", type);
+ err = -EINVAL;
+ break;
+ }
+
+ /* Wake up the spi thread */
+ up(&card->spi_ready);
+out:
+ lbs_deb_leave_args(LBS_DEB_SPI, "err=%d", err);
+ return err;
+}
+
+/*
+ * Host Interrupts
+ *
+ * Service incoming interrupts from the WLAN device. We can't sleep here, so
+ * don't try to talk on the SPI bus, just wake up the SPI thread.
+ */
+static irqreturn_t if_spi_host_interrupt(int irq, void *dev_id)
+{
+ struct if_spi_card *card = dev_id;
+
+ up(&card->spi_ready);
+ return IRQ_HANDLED;
+}
+
+/*
+ * SPI callbacks
+ */
+
+static int if_spi_calculate_fw_names(u16 card_id,
+ char *helper_fw, char *main_fw)
+{
+ int i;
+ for (i = 0; i < ARRAY_SIZE(chip_id_to_device_name); ++i) {
+ if (card_id == chip_id_to_device_name[i].chip_id)
+ break;
+ }
+ if (i == ARRAY_SIZE(chip_id_to_device_name)) {
+ lbs_pr_err("Unsupported chip_id: 0x%02x\n", card_id);
+ return -EAFNOSUPPORT;
+ }
+ snprintf(helper_fw, FIRMWARE_NAME_MAX, "libertas/gspi%d_hlp.bin",
+ chip_id_to_device_name[i].name);
+ snprintf(main_fw, FIRMWARE_NAME_MAX, "libertas/gspi%d.bin",
+ chip_id_to_device_name[i].name);
+ return 0;
+}
+
+static int __devinit if_spi_probe(struct spi_device *spi)
+{
+ struct if_spi_card *card;
+ struct lbs_private *priv = NULL;
+ struct libertas_spi_platform_data *pdata = spi->dev.platform_data;
+ int err = 0;
+ u32 scratch;
+
+ lbs_deb_enter(LBS_DEB_SPI);
+
+ if (!pdata) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ if (pdata->setup) {
+ err = pdata->setup(spi);
+ if (err)
+ goto out;
+ }
+
+ /* Allocate card structure to represent this specific device */
+ card = kzalloc(sizeof(struct if_spi_card), GFP_KERNEL);
+ if (!card) {
+ err = -ENOMEM;
+ goto out;
+ }
+ spi_set_drvdata(spi, card);
+ card->pdata = pdata;
+ card->spi = spi;
+ card->gpio_cs = pdata->gpio_cs;
+ card->prev_xfer_time = jiffies;
+
+ sema_init(&card->spi_ready, 0);
+ sema_init(&card->spi_thread_terminated, 0);
+ INIT_LIST_HEAD(&card->cmd_packet_list);
+ INIT_LIST_HEAD(&card->data_packet_list);
+ spin_lock_init(&card->buffer_lock);
+
+ /* set up GPIO CS line. TODO: use regular CS line */
+ err = gpio_request(card->gpio_cs, "if_spi_gpio_chip_select");
+ if (err)
+ goto free_card;
+ err = gpio_direction_output(card->gpio_cs, 1);
+ if (err)
+ goto free_gpio;
+
+ /* Initialize the SPI Interface Unit */
+ err = spu_init(card, pdata->use_dummy_writes);
+ if (err)
+ goto free_gpio;
+ err = spu_get_chip_revision(card, &card->card_id, &card->card_rev);
+ if (err)
+ goto free_gpio;
+
+ /* Firmware load */
+ err = spu_read_u32(card, IF_SPI_SCRATCH_4_REG, &scratch);
+ if (err)
+ goto free_gpio;
+ if (scratch == SUCCESSFUL_FW_DOWNLOAD_MAGIC)
+ lbs_deb_spi("Firmware is already loaded for "
+ "Marvell WLAN 802.11 adapter\n");
+ else {
+ err = if_spi_calculate_fw_names(card->card_id,
+ card->helper_fw_name, card->main_fw_name);
+ if (err)
+ goto free_gpio;
+
+ lbs_deb_spi("Initializing FW for Marvell WLAN 802.11 adapter "
+ "(chip_id = 0x%04x, chip_rev = 0x%02x) "
+ "attached to SPI bus_num %d, chip_select %d. "
+ "spi->max_speed_hz=%d\n",
+ card->card_id, card->card_rev,
+ spi->master->bus_num, spi->chip_select,
+ spi->max_speed_hz);
+ err = if_spi_prog_helper_firmware(card);
+ if (err)
+ goto free_gpio;
+ err = if_spi_prog_main_firmware(card);
+ if (err)
+ goto free_gpio;
+ lbs_deb_spi("loaded FW for Marvell WLAN 802.11 adapter\n");
+ }
+
+ err = spu_set_interrupt_mode(card, 0, 1);
+ if (err)
+ goto free_gpio;
+
+ /* Register our card with libertas.
+ * This will call alloc_etherdev */
+ priv = lbs_add_card(card, &spi->dev);
+ if (!priv) {
+ err = -ENOMEM;
+ goto free_gpio;
+ }
+ card->priv = priv;
+ priv->card = card;
+ priv->hw_host_to_card = if_spi_host_to_card;
+ priv->fw_ready = 1;
+ priv->ps_supported = 1;
+
+ /* Initialize interrupt handling stuff. */
+ card->run_thread = 1;
+ card->spi_thread = kthread_run(lbs_spi_thread, card, "lbs_spi_thread");
+ if (IS_ERR(card->spi_thread)) {
+ card->run_thread = 0;
+ err = PTR_ERR(card->spi_thread);
+ lbs_pr_err("error creating SPI thread: err=%d\n", err);
+ goto remove_card;
+ }
+ err = request_irq(spi->irq, if_spi_host_interrupt,
+ IRQF_TRIGGER_FALLING, "libertas_spi", card);
+ if (err) {
+ lbs_pr_err("can't get host irq line-- request_irq failed\n");
+ goto terminate_thread;
+ }
+
+ /* Start the card.
+ * This will call register_netdev, and we'll start
+ * getting interrupts... */
+ err = lbs_start_card(priv);
+ if (err)
+ goto release_irq;
+
+ lbs_deb_spi("Finished initializing WLAN module.\n");
+
+ /* successful exit */
+ goto out;
+
+release_irq:
+ free_irq(spi->irq, card);
+terminate_thread:
+ if_spi_terminate_spi_thread(card);
+remove_card:
+ lbs_remove_card(priv); /* will call free_netdev */
+free_gpio:
+ gpio_free(card->gpio_cs);
+free_card:
+ free_if_spi_card(card);
+out:
+ lbs_deb_leave_args(LBS_DEB_SPI, "err %d\n", err);
+ return err;
+}
+
+static int __devexit libertas_spi_remove(struct spi_device *spi)
+{
+ struct if_spi_card *card = spi_get_drvdata(spi);
+ struct lbs_private *priv = card->priv;
+
+ lbs_deb_spi("libertas_spi_remove\n");
+ lbs_deb_enter(LBS_DEB_SPI);
+ priv->surpriseremoved = 1;
+
+ lbs_stop_card(priv);
+ free_irq(spi->irq, card);
+ if_spi_terminate_spi_thread(card);
+ lbs_remove_card(priv); /* will call free_netdev */
+ gpio_free(card->gpio_cs);
+ if (card->pdata->teardown)
+ card->pdata->teardown(spi);
+ free_if_spi_card(card);
+ lbs_deb_leave(LBS_DEB_SPI);
+ return 0;
+}
+
+static struct spi_driver libertas_spi_driver = {
+ .probe = if_spi_probe,
+ .remove = __devexit_p(libertas_spi_remove),
+ .driver = {
+ .name = "libertas_spi",
+ .bus = &spi_bus_type,
+ .owner = THIS_MODULE,
+ },
+};
+
+/*
+ * Module functions
+ */
+
+static int __init if_spi_init_module(void)
+{
+ int ret = 0;
+ lbs_deb_enter(LBS_DEB_SPI);
+ printk(KERN_INFO "libertas_spi: Libertas SPI driver\n");
+ ret = spi_register_driver(&libertas_spi_driver);
+ lbs_deb_leave(LBS_DEB_SPI);
+ return ret;
+}
+
+static void __exit if_spi_exit_module(void)
+{
+ lbs_deb_enter(LBS_DEB_SPI);
+ spi_unregister_driver(&libertas_spi_driver);
+ lbs_deb_leave(LBS_DEB_SPI);
+}
+
+module_init(if_spi_init_module);
+module_exit(if_spi_exit_module);
+
+MODULE_DESCRIPTION("Libertas SPI WLAN Driver");
+MODULE_AUTHOR("Andrey Yurovsky <andrey@cozybit.com>, "
+ "Colin McCabe <colin@cozybit.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/wireless/libertas/if_spi.h b/drivers/net/wireless/libertas/if_spi.h
new file mode 100644
index 00000000000..2103869cc5b
--- /dev/null
+++ b/drivers/net/wireless/libertas/if_spi.h
@@ -0,0 +1,208 @@
+/*
+ * linux/drivers/net/wireless/libertas/if_spi.c
+ *
+ * Driver for Marvell SPI WLAN cards.
+ *
+ * Copyright 2008 Analog Devices Inc.
+ *
+ * Authors:
+ * Andrey Yurovsky <andrey@cozybit.com>
+ * Colin McCabe <colin@cozybit.com>
+ *
+ * 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.
+ */
+
+#ifndef _LBS_IF_SPI_H_
+#define _LBS_IF_SPI_H_
+
+#define IPFIELD_ALIGN_OFFSET 2
+#define IF_SPI_CMD_BUF_SIZE 2400
+
+/***************** Firmware *****************/
+struct chip_ident {
+ u16 chip_id;
+ u16 name;
+};
+
+#define MAX_MAIN_FW_LOAD_CRC_ERR 10
+
+/* Chunk size when loading the helper firmware */
+#define HELPER_FW_LOAD_CHUNK_SZ 64
+
+/* Value to write to indicate end of helper firmware dnld */
+#define FIRMWARE_DNLD_OK 0x0000
+
+/* Value to check once the main firmware is downloaded */
+#define SUCCESSFUL_FW_DOWNLOAD_MAGIC 0x88888888
+
+/***************** SPI Interface Unit *****************/
+/* Masks used in SPI register read/write operations */
+#define IF_SPI_READ_OPERATION_MASK 0x0
+#define IF_SPI_WRITE_OPERATION_MASK 0x8000
+
+/* SPI register offsets. 4-byte aligned. */
+#define IF_SPI_DEVICEID_CTRL_REG 0x00 /* DeviceID controller reg */
+#define IF_SPI_IO_READBASE_REG 0x04 /* Read I/O base reg */
+#define IF_SPI_IO_WRITEBASE_REG 0x08 /* Write I/O base reg */
+#define IF_SPI_IO_RDWRPORT_REG 0x0C /* Read/Write I/O port reg */
+
+#define IF_SPI_CMD_READBASE_REG 0x10 /* Read command base reg */
+#define IF_SPI_CMD_WRITEBASE_REG 0x14 /* Write command base reg */
+#define IF_SPI_CMD_RDWRPORT_REG 0x18 /* Read/Write command port reg */
+
+#define IF_SPI_DATA_READBASE_REG 0x1C /* Read data base reg */
+#define IF_SPI_DATA_WRITEBASE_REG 0x20 /* Write data base reg */
+#define IF_SPI_DATA_RDWRPORT_REG 0x24 /* Read/Write data port reg */
+
+#define IF_SPI_SCRATCH_1_REG 0x28 /* Scratch reg 1 */
+#define IF_SPI_SCRATCH_2_REG 0x2C /* Scratch reg 2 */
+#define IF_SPI_SCRATCH_3_REG 0x30 /* Scratch reg 3 */
+#define IF_SPI_SCRATCH_4_REG 0x34 /* Scratch reg 4 */
+
+#define IF_SPI_TX_FRAME_SEQ_NUM_REG 0x38 /* Tx frame sequence number reg */
+#define IF_SPI_TX_FRAME_STATUS_REG 0x3C /* Tx frame status reg */
+
+#define IF_SPI_HOST_INT_CTRL_REG 0x40 /* Host interrupt controller reg */
+
+#define IF_SPI_CARD_INT_CAUSE_REG 0x44 /* Card interrupt cause reg */
+#define IF_SPI_CARD_INT_STATUS_REG 0x48 /* Card interupt status reg */
+#define IF_SPI_CARD_INT_EVENT_MASK_REG 0x4C /* Card interrupt event mask */
+#define IF_SPI_CARD_INT_STATUS_MASK_REG 0x50 /* Card interrupt status mask */
+
+#define IF_SPI_CARD_INT_RESET_SELECT_REG 0x54 /* Card interrupt reset select */
+
+#define IF_SPI_HOST_INT_CAUSE_REG 0x58 /* Host interrupt cause reg */
+#define IF_SPI_HOST_INT_STATUS_REG 0x5C /* Host interrupt status reg */
+#define IF_SPI_HOST_INT_EVENT_MASK_REG 0x60 /* Host interrupt event mask */
+#define IF_SPI_HOST_INT_STATUS_MASK_REG 0x64 /* Host interrupt status mask */
+#define IF_SPI_HOST_INT_RESET_SELECT_REG 0x68 /* Host interrupt reset select */
+
+#define IF_SPI_DELAY_READ_REG 0x6C /* Delay read reg */
+#define IF_SPI_SPU_BUS_MODE_REG 0x70 /* SPU BUS mode reg */
+
+/***************** IF_SPI_DEVICEID_CTRL_REG *****************/
+#define IF_SPI_DEVICEID_CTRL_REG_TO_CARD_ID(dc) ((dc & 0xffff0000)>>16)
+#define IF_SPI_DEVICEID_CTRL_REG_TO_CARD_REV(dc) (dc & 0x000000ff)
+
+/***************** IF_SPI_HOST_INT_CTRL_REG *****************/
+/** Host Interrupt Control bit : Wake up */
+#define IF_SPI_HICT_WAKE_UP (1<<0)
+/** Host Interrupt Control bit : WLAN ready */
+#define IF_SPI_HICT_WLAN_READY (1<<1)
+/*#define IF_SPI_HICT_FIFO_FIRST_HALF_EMPTY (1<<2) */
+/*#define IF_SPI_HICT_FIFO_SECOND_HALF_EMPTY (1<<3) */
+/*#define IF_SPI_HICT_IRQSRC_WLAN (1<<4) */
+/** Host Interrupt Control bit : Tx auto download */
+#define IF_SPI_HICT_TX_DOWNLOAD_OVER_AUTO (1<<5)
+/** Host Interrupt Control bit : Rx auto upload */
+#define IF_SPI_HICT_RX_UPLOAD_OVER_AUTO (1<<6)
+/** Host Interrupt Control bit : Command auto download */
+#define IF_SPI_HICT_CMD_DOWNLOAD_OVER_AUTO (1<<7)
+/** Host Interrupt Control bit : Command auto upload */
+#define IF_SPI_HICT_CMD_UPLOAD_OVER_AUTO (1<<8)
+
+/***************** IF_SPI_CARD_INT_CAUSE_REG *****************/
+/** Card Interrupt Case bit : Tx download over */
+#define IF_SPI_CIC_TX_DOWNLOAD_OVER (1<<0)
+/** Card Interrupt Case bit : Rx upload over */
+#define IF_SPI_CIC_RX_UPLOAD_OVER (1<<1)
+/** Card Interrupt Case bit : Command download over */
+#define IF_SPI_CIC_CMD_DOWNLOAD_OVER (1<<2)
+/** Card Interrupt Case bit : Host event */
+#define IF_SPI_CIC_HOST_EVENT (1<<3)
+/** Card Interrupt Case bit : Command upload over */
+#define IF_SPI_CIC_CMD_UPLOAD_OVER (1<<4)
+/** Card Interrupt Case bit : Power down */
+#define IF_SPI_CIC_POWER_DOWN (1<<5)
+
+/***************** IF_SPI_CARD_INT_STATUS_REG *****************/
+#define IF_SPI_CIS_TX_DOWNLOAD_OVER (1<<0)
+#define IF_SPI_CIS_RX_UPLOAD_OVER (1<<1)
+#define IF_SPI_CIS_CMD_DOWNLOAD_OVER (1<<2)
+#define IF_SPI_CIS_HOST_EVENT (1<<3)
+#define IF_SPI_CIS_CMD_UPLOAD_OVER (1<<4)
+#define IF_SPI_CIS_POWER_DOWN (1<<5)
+
+/***************** IF_SPI_HOST_INT_CAUSE_REG *****************/
+#define IF_SPI_HICU_TX_DOWNLOAD_RDY (1<<0)
+#define IF_SPI_HICU_RX_UPLOAD_RDY (1<<1)
+#define IF_SPI_HICU_CMD_DOWNLOAD_RDY (1<<2)
+#define IF_SPI_HICU_CARD_EVENT (1<<3)
+#define IF_SPI_HICU_CMD_UPLOAD_RDY (1<<4)
+#define IF_SPI_HICU_IO_WR_FIFO_OVERFLOW (1<<5)
+#define IF_SPI_HICU_IO_RD_FIFO_UNDERFLOW (1<<6)
+#define IF_SPI_HICU_DATA_WR_FIFO_OVERFLOW (1<<7)
+#define IF_SPI_HICU_DATA_RD_FIFO_UNDERFLOW (1<<8)
+#define IF_SPI_HICU_CMD_WR_FIFO_OVERFLOW (1<<9)
+#define IF_SPI_HICU_CMD_RD_FIFO_UNDERFLOW (1<<10)
+
+/***************** IF_SPI_HOST_INT_STATUS_REG *****************/
+/** Host Interrupt Status bit : Tx download ready */
+#define IF_SPI_HIST_TX_DOWNLOAD_RDY (1<<0)
+/** Host Interrupt Status bit : Rx upload ready */
+#define IF_SPI_HIST_RX_UPLOAD_RDY (1<<1)
+/** Host Interrupt Status bit : Command download ready */
+#define IF_SPI_HIST_CMD_DOWNLOAD_RDY (1<<2)
+/** Host Interrupt Status bit : Card event */
+#define IF_SPI_HIST_CARD_EVENT (1<<3)
+/** Host Interrupt Status bit : Command upload ready */
+#define IF_SPI_HIST_CMD_UPLOAD_RDY (1<<4)
+/** Host Interrupt Status bit : I/O write FIFO overflow */
+#define IF_SPI_HIST_IO_WR_FIFO_OVERFLOW (1<<5)
+/** Host Interrupt Status bit : I/O read FIFO underflow */
+#define IF_SPI_HIST_IO_RD_FIFO_UNDRFLOW (1<<6)
+/** Host Interrupt Status bit : Data write FIFO overflow */
+#define IF_SPI_HIST_DATA_WR_FIFO_OVERFLOW (1<<7)
+/** Host Interrupt Status bit : Data read FIFO underflow */
+#define IF_SPI_HIST_DATA_RD_FIFO_UNDERFLOW (1<<8)
+/** Host Interrupt Status bit : Command write FIFO overflow */
+#define IF_SPI_HIST_CMD_WR_FIFO_OVERFLOW (1<<9)
+/** Host Interrupt Status bit : Command read FIFO underflow */
+#define IF_SPI_HIST_CMD_RD_FIFO_UNDERFLOW (1<<10)
+
+/***************** IF_SPI_HOST_INT_STATUS_MASK_REG *****************/
+/** Host Interrupt Status Mask bit : Tx download ready */
+#define IF_SPI_HISM_TX_DOWNLOAD_RDY (1<<0)
+/** Host Interrupt Status Mask bit : Rx upload ready */
+#define IF_SPI_HISM_RX_UPLOAD_RDY (1<<1)
+/** Host Interrupt Status Mask bit : Command download ready */
+#define IF_SPI_HISM_CMD_DOWNLOAD_RDY (1<<2)
+/** Host Interrupt Status Mask bit : Card event */
+#define IF_SPI_HISM_CARDEVENT (1<<3)
+/** Host Interrupt Status Mask bit : Command upload ready */
+#define IF_SPI_HISM_CMD_UPLOAD_RDY (1<<4)
+/** Host Interrupt Status Mask bit : I/O write FIFO overflow */
+#define IF_SPI_HISM_IO_WR_FIFO_OVERFLOW (1<<5)
+/** Host Interrupt Status Mask bit : I/O read FIFO underflow */
+#define IF_SPI_HISM_IO_RD_FIFO_UNDERFLOW (1<<6)
+/** Host Interrupt Status Mask bit : Data write FIFO overflow */
+#define IF_SPI_HISM_DATA_WR_FIFO_OVERFLOW (1<<7)
+/** Host Interrupt Status Mask bit : Data write FIFO underflow */
+#define IF_SPI_HISM_DATA_RD_FIFO_UNDERFLOW (1<<8)
+/** Host Interrupt Status Mask bit : Command write FIFO overflow */
+#define IF_SPI_HISM_CMD_WR_FIFO_OVERFLOW (1<<9)
+/** Host Interrupt Status Mask bit : Command write FIFO underflow */
+#define IF_SPI_HISM_CMD_RD_FIFO_UNDERFLOW (1<<10)
+
+/***************** IF_SPI_SPU_BUS_MODE_REG *****************/
+/* SCK edge on which the WLAN module outputs data on MISO */
+#define IF_SPI_BUS_MODE_SPI_CLOCK_PHASE_FALLING 0x8
+#define IF_SPI_BUS_MODE_SPI_CLOCK_PHASE_RISING 0x0
+
+/* In a SPU read operation, there is a delay between writing the SPU
+ * register name and getting back data from the WLAN module.
+ * This can be specified in terms of nanoseconds or in terms of dummy
+ * clock cycles which the master must output before receiving a response. */
+#define IF_SPI_BUS_MODE_DELAY_METHOD_DUMMY_CLOCK 0x4
+#define IF_SPI_BUS_MODE_DELAY_METHOD_TIMED 0x0
+
+/* Some different modes of SPI operation */
+#define IF_SPI_BUS_MODE_8_BIT_ADDRESS_16_BIT_DATA 0x00
+#define IF_SPI_BUS_MODE_8_BIT_ADDRESS_32_BIT_DATA 0x01
+#define IF_SPI_BUS_MODE_16_BIT_ADDRESS_16_BIT_DATA 0x02
+#define IF_SPI_BUS_MODE_16_BIT_ADDRESS_32_BIT_DATA 0x03
+
+#endif
diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c
index f76623e0ff9..8ae935ac32f 100644
--- a/drivers/net/wireless/libertas/main.c
+++ b/drivers/net/wireless/libertas/main.c
@@ -582,20 +582,6 @@ void lbs_host_to_card_done(struct lbs_private *priv)
}
EXPORT_SYMBOL_GPL(lbs_host_to_card_done);
-/**
- * @brief This function returns the network statistics
- *
- * @param dev A pointer to struct lbs_private structure
- * @return A pointer to net_device_stats structure
- */
-static struct net_device_stats *lbs_get_stats(struct net_device *dev)
-{
- struct lbs_private *priv = dev->ml_priv;
-
- lbs_deb_enter(LBS_DEB_NET);
- return &priv->stats;
-}
-
static int lbs_set_mac_address(struct net_device *dev, void *addr)
{
int ret = 0;
@@ -1006,9 +992,8 @@ void lbs_resume(struct lbs_private *priv)
EXPORT_SYMBOL_GPL(lbs_resume);
/**
- * @brief This function downloads firmware image, gets
- * HW spec from firmware and set basic parameters to
- * firmware.
+ * @brief This function gets the HW spec from the firmware and sets
+ * some basic parameters.
*
* @param priv A pointer to struct lbs_private structure
* @return 0 or -1
@@ -1163,6 +1148,17 @@ static void lbs_free_adapter(struct lbs_private *priv)
lbs_deb_leave(LBS_DEB_MAIN);
}
+static const struct net_device_ops lbs_netdev_ops = {
+ .ndo_open = lbs_dev_open,
+ .ndo_stop = lbs_eth_stop,
+ .ndo_start_xmit = lbs_hard_start_xmit,
+ .ndo_set_mac_address = lbs_set_mac_address,
+ .ndo_tx_timeout = lbs_tx_timeout,
+ .ndo_set_multicast_list = lbs_set_multicast_list,
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
/**
* @brief This function adds the card. it will probe the
* card, allocate the lbs_priv and initialize the device.
@@ -1197,19 +1193,13 @@ struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
priv->infra_open = 0;
/* Setup the OS Interface to our functions */
- dev->open = lbs_dev_open;
- dev->hard_start_xmit = lbs_hard_start_xmit;
- dev->stop = lbs_eth_stop;
- dev->set_mac_address = lbs_set_mac_address;
- dev->tx_timeout = lbs_tx_timeout;
- dev->get_stats = lbs_get_stats;
+ dev->netdev_ops = &lbs_netdev_ops;
dev->watchdog_timeo = 5 * HZ;
dev->ethtool_ops = &lbs_ethtool_ops;
#ifdef WIRELESS_EXT
- dev->wireless_handlers = (struct iw_handler_def *)&lbs_handler_def;
+ dev->wireless_handlers = &lbs_handler_def;
#endif
dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
- dev->set_multicast_list = lbs_set_multicast_list;
SET_NETDEV_DEV(dev, dmdev);
@@ -1419,6 +1409,14 @@ out:
EXPORT_SYMBOL_GPL(lbs_stop_card);
+static const struct net_device_ops mesh_netdev_ops = {
+ .ndo_open = lbs_dev_open,
+ .ndo_stop = lbs_mesh_stop,
+ .ndo_start_xmit = lbs_hard_start_xmit,
+ .ndo_set_mac_address = lbs_set_mac_address,
+ .ndo_set_multicast_list = lbs_set_multicast_list,
+};
+
/**
* @brief This function adds mshX interface
*
@@ -1441,11 +1439,7 @@ static int lbs_add_mesh(struct lbs_private *priv)
mesh_dev->ml_priv = priv;
priv->mesh_dev = mesh_dev;
- mesh_dev->open = lbs_dev_open;
- mesh_dev->hard_start_xmit = lbs_hard_start_xmit;
- mesh_dev->stop = lbs_mesh_stop;
- mesh_dev->get_stats = lbs_get_stats;
- mesh_dev->set_mac_address = lbs_set_mac_address;
+ mesh_dev->netdev_ops = &mesh_netdev_ops;
mesh_dev->ethtool_ops = &lbs_ethtool_ops;
memcpy(mesh_dev->dev_addr, priv->dev->dev_addr,
sizeof(priv->dev->dev_addr));
@@ -1456,7 +1450,6 @@ static int lbs_add_mesh(struct lbs_private *priv)
mesh_dev->wireless_handlers = (struct iw_handler_def *)&mesh_handler_def;
#endif
mesh_dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
- mesh_dev->set_multicast_list = lbs_set_multicast_list;
/* Register virtual mesh interface */
ret = register_netdev(mesh_dev);
if (ret) {
@@ -1649,14 +1642,6 @@ static int lbs_rtap_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
return NETDEV_TX_BUSY;
}
-static struct net_device_stats *lbs_rtap_get_stats(struct net_device *dev)
-{
- struct lbs_private *priv = dev->ml_priv;
- lbs_deb_enter(LBS_DEB_NET);
- return &priv->stats;
-}
-
-
static void lbs_remove_rtap(struct lbs_private *priv)
{
lbs_deb_enter(LBS_DEB_MAIN);
@@ -1669,6 +1654,12 @@ out:
lbs_deb_leave(LBS_DEB_MAIN);
}
+static const struct net_device_ops rtap_netdev_ops = {
+ .ndo_open = lbs_rtap_open,
+ .ndo_stop = lbs_rtap_stop,
+ .ndo_start_xmit = lbs_rtap_hard_start_xmit,
+};
+
static int lbs_add_rtap(struct lbs_private *priv)
{
int ret = 0;
@@ -1688,10 +1679,7 @@ static int lbs_add_rtap(struct lbs_private *priv)
memcpy(rtap_dev->dev_addr, priv->current_addr, ETH_ALEN);
rtap_dev->type = ARPHRD_IEEE80211_RADIOTAP;
- rtap_dev->open = lbs_rtap_open;
- rtap_dev->stop = lbs_rtap_stop;
- rtap_dev->get_stats = lbs_rtap_get_stats;
- rtap_dev->hard_start_xmit = lbs_rtap_hard_start_xmit;
+ rtap_dev->netdev_ops = &rtap_netdev_ops;
rtap_dev->ml_priv = priv;
SET_NETDEV_DEV(rtap_dev, priv->dev->dev.parent);
diff --git a/drivers/net/wireless/libertas/radiotap.h b/drivers/net/wireless/libertas/radiotap.h
index f8eb9097ff0..d16b26416e8 100644
--- a/drivers/net/wireless/libertas/radiotap.h
+++ b/drivers/net/wireless/libertas/radiotap.h
@@ -33,22 +33,12 @@ struct rx_radiotap_hdr {
struct ieee80211_radiotap_header hdr;
u8 flags;
u8 rate;
- u16 chan_freq;
- u16 chan_flags;
- u8 antenna;
u8 antsignal;
- u16 rx_flags;
-#if 0
- u8 pad[IEEE80211_RADIOTAP_HDRLEN - 18];
-#endif
} __attribute__ ((packed));
#define RX_RADIOTAP_PRESENT ( \
(1 << IEEE80211_RADIOTAP_FLAGS) | \
(1 << IEEE80211_RADIOTAP_RATE) | \
- (1 << IEEE80211_RADIOTAP_CHANNEL) | \
- (1 << IEEE80211_RADIOTAP_ANTENNA) | \
(1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL) |\
- (1 << IEEE80211_RADIOTAP_RX_FLAGS) | \
0)
diff --git a/drivers/net/wireless/libertas/rx.c b/drivers/net/wireless/libertas/rx.c
index 079e6aa874d..63d7e19ce9b 100644
--- a/drivers/net/wireless/libertas/rx.c
+++ b/drivers/net/wireless/libertas/rx.c
@@ -168,7 +168,7 @@ int lbs_process_rxed_packet(struct lbs_private *priv, struct sk_buff *skb)
if (skb->len < (ETH_HLEN + 8 + sizeof(struct rxpd))) {
lbs_deb_rx("rx err: frame received with bad length\n");
- priv->stats.rx_length_errors++;
+ dev->stats.rx_length_errors++;
ret = 0;
goto done;
}
@@ -179,7 +179,7 @@ int lbs_process_rxed_packet(struct lbs_private *priv, struct sk_buff *skb)
if (!(p_rx_pd->status & cpu_to_le16(MRVDRV_RXPD_STATUS_OK))) {
lbs_deb_rx("rx err: frame received with bad status\n");
lbs_pr_alert("rxpd not ok\n");
- priv->stats.rx_errors++;
+ dev->stats.rx_errors++;
ret = 0;
goto done;
}
@@ -243,8 +243,8 @@ int lbs_process_rxed_packet(struct lbs_private *priv, struct sk_buff *skb)
lbs_compute_rssi(priv, p_rx_pd);
lbs_deb_rx("rx data: size of actual packet %d\n", skb->len);
- priv->stats.rx_bytes += skb->len;
- priv->stats.rx_packets++;
+ dev->stats.rx_bytes += skb->len;
+ dev->stats.rx_packets++;
skb->protocol = eth_type_trans(skb, dev);
if (in_interrupt())
@@ -311,7 +311,7 @@ static int process_rxed_802_11_packet(struct lbs_private *priv,
struct sk_buff *skb)
{
int ret = 0;
-
+ struct net_device *dev = priv->dev;
struct rx80211packethdr *p_rx_pkt;
struct rxpd *prxpd;
struct rx_radiotap_hdr radiotap_hdr;
@@ -326,7 +326,7 @@ static int process_rxed_802_11_packet(struct lbs_private *priv,
if (skb->len < (ETH_HLEN + 8 + sizeof(struct rxpd))) {
lbs_deb_rx("rx err: frame received with bad length\n");
- priv->stats.rx_length_errors++;
+ dev->stats.rx_length_errors++;
ret = -EINVAL;
kfree_skb(skb);
goto done;
@@ -337,7 +337,7 @@ static int process_rxed_802_11_packet(struct lbs_private *priv,
*/
if (!(prxpd->status & cpu_to_le16(MRVDRV_RXPD_STATUS_OK))) {
//lbs_deb_rx("rx err: frame received with bad status\n");
- priv->stats.rx_errors++;
+ dev->stats.rx_errors++;
}
lbs_deb_rx("rx data: skb->len-sizeof(RxPd) = %d-%zd = %zd\n",
@@ -351,19 +351,11 @@ static int process_rxed_802_11_packet(struct lbs_private *priv,
radiotap_hdr.hdr.it_pad = 0;
radiotap_hdr.hdr.it_len = cpu_to_le16 (sizeof(struct rx_radiotap_hdr));
radiotap_hdr.hdr.it_present = cpu_to_le32 (RX_RADIOTAP_PRESENT);
- /* unknown values */
- radiotap_hdr.flags = 0;
- radiotap_hdr.chan_freq = 0;
- radiotap_hdr.chan_flags = 0;
- radiotap_hdr.antenna = 0;
- /* known values */
+ if (!(prxpd->status & cpu_to_le16(MRVDRV_RXPD_STATUS_OK)))
+ radiotap_hdr.flags |= IEEE80211_RADIOTAP_F_BADFCS;
radiotap_hdr.rate = convert_mv_rate_to_radiotap(prxpd->rx_rate);
/* XXX must check no carryout */
radiotap_hdr.antsignal = prxpd->snr + prxpd->nf;
- radiotap_hdr.rx_flags = 0;
- if (!(prxpd->status & cpu_to_le16(MRVDRV_RXPD_STATUS_OK)))
- radiotap_hdr.rx_flags |= IEEE80211_RADIOTAP_F_RX_BADFCS;
- //memset(radiotap_hdr.pad, 0x11, IEEE80211_RADIOTAP_HDRLEN - 18);
/* chop the rxpd */
skb_pull(skb, sizeof(struct rxpd));
@@ -389,8 +381,8 @@ static int process_rxed_802_11_packet(struct lbs_private *priv,
lbs_compute_rssi(priv, prxpd);
lbs_deb_rx("rx data: size of actual packet %d\n", skb->len);
- priv->stats.rx_bytes += skb->len;
- priv->stats.rx_packets++;
+ dev->stats.rx_bytes += skb->len;
+ dev->stats.rx_packets++;
skb->protocol = eth_type_trans(skb, priv->rtap_net_dev);
netif_rx(skb);
diff --git a/drivers/net/wireless/libertas/scan.c b/drivers/net/wireless/libertas/scan.c
index 9014950f432..8124db36aaf 100644
--- a/drivers/net/wireless/libertas/scan.c
+++ b/drivers/net/wireless/libertas/scan.c
@@ -692,7 +692,7 @@ static int lbs_process_bss(struct bss_descriptor *bss,
bss->wpa_ie_len);
} else if (pos[1] >= MARVELL_MESH_IE_LENGTH &&
pos[2] == 0x00 && pos[3] == 0x50 &&
- pos[4] == 0x43 && pos[4] == 0x04) {
+ pos[4] == 0x43 && pos[5] == 0x04) {
lbs_deb_scan("got mesh IE\n");
bss->mesh = 1;
} else {
diff --git a/drivers/net/wireless/libertas/tx.c b/drivers/net/wireless/libertas/tx.c
index 68bec31ae03..f10aa39a6b6 100644
--- a/drivers/net/wireless/libertas/tx.c
+++ b/drivers/net/wireless/libertas/tx.c
@@ -82,8 +82,8 @@ int lbs_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
skb->len, MRVDRV_ETH_TX_PACKET_BUFFER_SIZE);
/* We'll never manage to send this one; drop it and return 'OK' */
- priv->stats.tx_dropped++;
- priv->stats.tx_errors++;
+ dev->stats.tx_dropped++;
+ dev->stats.tx_errors++;
goto free;
}
@@ -146,8 +146,8 @@ int lbs_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
lbs_deb_tx("%s lined up packet\n", __func__);
- priv->stats.tx_packets++;
- priv->stats.tx_bytes += skb->len;
+ dev->stats.tx_packets++;
+ dev->stats.tx_bytes += skb->len;
dev->trans_start = jiffies;
diff --git a/drivers/net/wireless/libertas/wext.c b/drivers/net/wireless/libertas/wext.c
index f16d136ab4b..8bc1907458b 100644
--- a/drivers/net/wireless/libertas/wext.c
+++ b/drivers/net/wireless/libertas/wext.c
@@ -830,7 +830,7 @@ static struct iw_statistics *lbs_get_wireless_stats(struct net_device *dev)
quality = rssi_qual;
/* Quality by TX errors */
- priv->wstats.discard.retries = priv->stats.tx_errors;
+ priv->wstats.discard.retries = dev->stats.tx_errors;
memset(&log, 0, sizeof(log));
log.hdr.size = cpu_to_le16(sizeof(log));
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-11 16:13:17 +0000