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path: root/drivers/usb/musb/tusb6010_omap.c
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Diffstat (limited to 'drivers/usb/musb/tusb6010_omap.c')
-rw-r--r--drivers/usb/musb/tusb6010_omap.c73
1 files changed, 27 insertions, 46 deletions
diff --git a/drivers/usb/musb/tusb6010_omap.c b/drivers/usb/musb/tusb6010_omap.c
index c061a88f2b0..3ce152c0408 100644
--- a/drivers/usb/musb/tusb6010_omap.c
+++ b/drivers/usb/musb/tusb6010_omap.c
@@ -11,20 +11,26 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
-#include <linux/init.h>
#include <linux/usb.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/slab.h>
-#include <plat/dma.h>
-#include <plat/mux.h>
+#include <linux/omap-dma.h>
#include "musb_core.h"
+#include "tusb6010.h"
#define to_chdat(c) ((struct tusb_omap_dma_ch *)(c)->private_data)
#define MAX_DMAREQ 5 /* REVISIT: Really 6, but req5 not OK */
+#define OMAP24XX_DMA_EXT_DMAREQ0 2
+#define OMAP24XX_DMA_EXT_DMAREQ1 3
+#define OMAP242X_DMA_EXT_DMAREQ2 14
+#define OMAP242X_DMA_EXT_DMAREQ3 15
+#define OMAP242X_DMA_EXT_DMAREQ4 16
+#define OMAP242X_DMA_EXT_DMAREQ5 64
+
struct tusb_omap_dma_ch {
struct musb *musb;
void __iomem *tbase;
@@ -59,28 +65,6 @@ struct tusb_omap_dma {
unsigned multichannel:1;
};
-static int tusb_omap_dma_start(struct dma_controller *c)
-{
- struct tusb_omap_dma *tusb_dma;
-
- tusb_dma = container_of(c, struct tusb_omap_dma, controller);
-
- /* DBG(3, "ep%i ch: %i\n", chdat->epnum, chdat->ch); */
-
- return 0;
-}
-
-static int tusb_omap_dma_stop(struct dma_controller *c)
-{
- struct tusb_omap_dma *tusb_dma;
-
- tusb_dma = container_of(c, struct tusb_omap_dma, controller);
-
- /* DBG(3, "ep%i ch: %i\n", chdat->epnum, chdat->ch); */
-
- return 0;
-}
-
/*
* Allocate dmareq0 to the current channel unless it's already taken
*/
@@ -89,7 +73,7 @@ static inline int tusb_omap_use_shared_dmareq(struct tusb_omap_dma_ch *chdat)
u32 reg = musb_readl(chdat->tbase, TUSB_DMA_EP_MAP);
if (reg != 0) {
- DBG(3, "ep%i dmareq0 is busy for ep%i\n",
+ dev_dbg(chdat->musb->controller, "ep%i dmareq0 is busy for ep%i\n",
chdat->epnum, reg & 0xf);
return -EAGAIN;
}
@@ -143,7 +127,7 @@ static void tusb_omap_dma_cb(int lch, u16 ch_status, void *data)
if (ch_status != OMAP_DMA_BLOCK_IRQ)
printk(KERN_ERR "TUSB DMA error status: %i\n", ch_status);
- DBG(3, "ep%i %s dma callback ch: %i status: %x\n",
+ dev_dbg(musb->controller, "ep%i %s dma callback ch: %i status: %x\n",
chdat->epnum, chdat->tx ? "tx" : "rx",
ch, ch_status);
@@ -156,7 +140,7 @@ static void tusb_omap_dma_cb(int lch, u16 ch_status, void *data)
/* HW issue #10: XFR_SIZE may get corrupt on DMA (both async & sync) */
if (unlikely(remaining > chdat->transfer_len)) {
- DBG(2, "Corrupt %s dma ch%i XFR_SIZE: 0x%08lx\n",
+ dev_dbg(musb->controller, "Corrupt %s dma ch%i XFR_SIZE: 0x%08lx\n",
chdat->tx ? "tx" : "rx", chdat->ch,
remaining);
remaining = 0;
@@ -165,13 +149,13 @@ static void tusb_omap_dma_cb(int lch, u16 ch_status, void *data)
channel->actual_len = chdat->transfer_len - remaining;
pio = chdat->len - channel->actual_len;
- DBG(3, "DMA remaining %lu/%u\n", remaining, chdat->transfer_len);
+ dev_dbg(musb->controller, "DMA remaining %lu/%u\n", remaining, chdat->transfer_len);
/* Transfer remaining 1 - 31 bytes */
if (pio > 0 && pio < 32) {
u8 *buf;
- DBG(3, "Using PIO for remaining %lu bytes\n", pio);
+ dev_dbg(musb->controller, "Using PIO for remaining %lu bytes\n", pio);
buf = phys_to_virt((u32)chdat->dma_addr) + chdat->transfer_len;
if (chdat->tx) {
dma_unmap_single(dev, chdat->dma_addr,
@@ -209,7 +193,7 @@ static void tusb_omap_dma_cb(int lch, u16 ch_status, void *data)
u16 csr;
if (chdat->tx) {
- DBG(3, "terminating short tx packet\n");
+ dev_dbg(musb->controller, "terminating short tx packet\n");
musb_ep_select(mbase, chdat->epnum);
csr = musb_readw(hw_ep->regs, MUSB_TXCSR);
csr |= MUSB_TXCSR_MODE | MUSB_TXCSR_TXPKTRDY
@@ -264,7 +248,7 @@ static int tusb_omap_dma_program(struct dma_channel *channel, u16 packet_sz,
dma_remaining = TUSB_EP_CONFIG_XFR_SIZE(dma_remaining);
if (dma_remaining) {
- DBG(2, "Busy %s dma ch%i, not using: %08x\n",
+ dev_dbg(musb->controller, "Busy %s dma ch%i, not using: %08x\n",
chdat->tx ? "tx" : "rx", chdat->ch,
dma_remaining);
return false;
@@ -283,7 +267,7 @@ static int tusb_omap_dma_program(struct dma_channel *channel, u16 packet_sz,
sync_dev = chdat->sync_dev;
} else {
if (tusb_omap_use_shared_dmareq(chdat) != 0) {
- DBG(3, "could not get dma for ep%i\n", chdat->epnum);
+ dev_dbg(musb->controller, "could not get dma for ep%i\n", chdat->epnum);
return false;
}
if (tusb_dma->ch < 0) {
@@ -326,7 +310,7 @@ static int tusb_omap_dma_program(struct dma_channel *channel, u16 packet_sz,
dma_params.frame_count = chdat->transfer_len / 32; /* Burst sz frame */
- DBG(3, "ep%i %s dma ch%i dma: %08x len: %u(%u) packet_sz: %i(%i)\n",
+ dev_dbg(musb->controller, "ep%i %s dma ch%i dma: %08x len: %u(%u) packet_sz: %i(%i)\n",
chdat->epnum, chdat->tx ? "tx" : "rx",
ch, dma_addr, chdat->transfer_len, len,
chdat->transfer_packet_sz, packet_sz);
@@ -370,7 +354,7 @@ static int tusb_omap_dma_program(struct dma_channel *channel, u16 packet_sz,
dst_burst = OMAP_DMA_DATA_BURST_16; /* 16x32 write */
}
- DBG(3, "ep%i %s using %i-bit %s dma from 0x%08lx to 0x%08lx\n",
+ dev_dbg(musb->controller, "ep%i %s using %i-bit %s dma from 0x%08lx to 0x%08lx\n",
chdat->epnum, chdat->tx ? "tx" : "rx",
(dma_params.data_type == OMAP_DMA_DATA_TYPE_S32) ? 32 : 16,
((dma_addr & 0x3) == 0) ? "sync" : "async",
@@ -525,7 +509,7 @@ tusb_omap_dma_allocate(struct dma_controller *c,
/* REVISIT: Why does dmareq5 not work? */
if (hw_ep->epnum == 0) {
- DBG(3, "Not allowing DMA for ep0 %s\n", tx ? "tx" : "rx");
+ dev_dbg(musb->controller, "Not allowing DMA for ep0 %s\n", tx ? "tx" : "rx");
return NULL;
}
@@ -585,7 +569,7 @@ tusb_omap_dma_allocate(struct dma_controller *c,
chdat->ch = -1;
}
- DBG(3, "ep%i %s dma: %s dma%i dmareq%i sync%i\n",
+ dev_dbg(musb->controller, "ep%i %s dma: %s dma%i dmareq%i sync%i\n",
chdat->epnum,
chdat->tx ? "tx" : "rx",
chdat->ch >= 0 ? "dedicated" : "shared",
@@ -598,7 +582,7 @@ tusb_omap_dma_allocate(struct dma_controller *c,
free_dmareq:
tusb_omap_dma_free_dmareq(chdat);
- DBG(3, "ep%i: Could not get a DMA channel\n", chdat->epnum);
+ dev_dbg(musb->controller, "ep%i: Could not get a DMA channel\n", chdat->epnum);
channel->status = MUSB_DMA_STATUS_UNKNOWN;
return NULL;
@@ -611,7 +595,7 @@ static void tusb_omap_dma_release(struct dma_channel *channel)
void __iomem *tbase = musb->ctrl_base;
u32 reg;
- DBG(3, "ep%i ch%i\n", chdat->epnum, chdat->ch);
+ dev_dbg(musb->controller, "ep%i ch%i\n", chdat->epnum, chdat->ch);
reg = musb_readl(tbase, TUSB_DMA_INT_MASK);
if (chdat->tx)
@@ -661,8 +645,7 @@ void dma_controller_destroy(struct dma_controller *c)
kfree(tusb_dma);
}
-struct dma_controller *__init
-dma_controller_create(struct musb *musb, void __iomem *base)
+struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *base)
{
void __iomem *tbase = musb->ctrl_base;
struct tusb_omap_dma *tusb_dma;
@@ -680,7 +663,7 @@ dma_controller_create(struct musb *musb, void __iomem *base)
tusb_dma = kzalloc(sizeof(struct tusb_omap_dma), GFP_KERNEL);
if (!tusb_dma)
- goto cleanup;
+ goto out;
tusb_dma->musb = musb;
tusb_dma->tbase = musb->ctrl_base;
@@ -689,14 +672,12 @@ dma_controller_create(struct musb *musb, void __iomem *base)
tusb_dma->dmareq = -1;
tusb_dma->sync_dev = -1;
- tusb_dma->controller.start = tusb_omap_dma_start;
- tusb_dma->controller.stop = tusb_omap_dma_stop;
tusb_dma->controller.channel_alloc = tusb_omap_dma_allocate;
tusb_dma->controller.channel_release = tusb_omap_dma_release;
tusb_dma->controller.channel_program = tusb_omap_dma_program;
tusb_dma->controller.channel_abort = tusb_omap_dma_abort;
- if (tusb_get_revision(musb) >= TUSB_REV_30)
+ if (musb->tusb_revision >= TUSB_REV_30)
tusb_dma->multichannel = 1;
for (i = 0; i < MAX_DMAREQ; i++) {
@@ -721,6 +702,6 @@ dma_controller_create(struct musb *musb, void __iomem *base)
cleanup:
dma_controller_destroy(&tusb_dma->controller);
-
+out:
return NULL;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 20:50:14 +0000