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Using polling instead of interrupts make TX work better, storage worked, but still unstable!

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18847 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Vitja Makarov 2008-10-20 17:18:14 +00:00
parent 761366d8b8
commit 8d81b71d6e
1 changed files with 48 additions and 29 deletions
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77
firmware/target/arm/tcc77x/usb-tcc77x.c
View file

@ -35,7 +35,7 @@
#define TCC7xx_USB_EPIF_IRQ_MASK 0xf
static int dbg_level = 0x02;
static int dbg_level = 0x00;
static int global_ep_irq_mask = 0x1;
#define DEBUG(level, fmt, args...) do { if (dbg_level & (level)) printf(fmt, ## args); } while (0)
@ -91,7 +91,7 @@ static struct tcc_ep tcc_endpoints[] = {
},
} ;
static int usb_drv_write_packet(volatile unsigned short *buf, unsigned char *data, int len, int max);
static bool usb_drv_write_ep(struct tcc_ep *ep);
static void usb_set_speed(int);
int usb_drv_request_endpoint(int dir)
@ -315,36 +315,27 @@ void handle_ep_in(struct tcc_ep *tcc_ep, uint16_t stat)
static
void handle_ep_out(struct tcc_ep *tcc_ep, uint16_t stat)
{
bool done;
(void) stat;
if (tcc_ep->dir != USB_DIR_IN) {
panicf_my("ep%d: is out only", tcc_ep->id);
}
if (tcc_ep->buf == NULL) {
panicf_my("%s:%d", __FILE__, __LINE__);
}
// if (tcc_ep->buf == NULL) {
// panicf_my("%s:%d", __FILE__, __LINE__);
// }
if (tcc_ep->max_len) {
int count = usb_drv_write_packet(tcc_ep->ep,
tcc_ep->buf,
tcc_ep->max_len,
512);
tcc_ep->buf += count;
tcc_ep->max_len -= count;
tcc_ep->count += count;
} else {
tcc_ep->buf = NULL;
}
done = usb_drv_write_ep(tcc_ep);
TCC7xx_USB_EP_STAT = 0x2; /* Clear TX stat */
// TCC7xx_USB_EP_STAT = 0x2; /* Clear TX stat */
TCC7xx_USB_EPIF = tcc_ep->mask;
if (tcc_ep->buf == NULL) {
if (done) { // tcc_ep->buf == NULL) {
TCC7xx_USB_EPIE &= ~tcc_ep->mask;
global_ep_irq_mask &= ~tcc_ep->mask;
usb_core_transfer_complete(tcc_ep->id, USB_DIR_IN, 0, tcc_ep->count);
// usb_core_transfer_complete(tcc_ep->id, USB_DIR_IN, 0, tcc_ep->count);
}
}
@ -528,6 +519,29 @@ static int usb_drv_write_packet(volatile unsigned short *buf, unsigned char *dat
return len;
}
static bool usb_drv_write_ep(struct tcc_ep *ep)
{
int count;
if (ep->max_len == 0)
return true;
count = usb_drv_write_packet(ep->ep, ep->buf, ep->max_len, 512);
TCC7xx_USB_EP_STAT = 0x2; /* Clear TX stat */
ep->buf += count;
ep->count += count;
ep->max_len -= count;
if (ep->max_len == 0) {
usb_core_transfer_complete(ep->id, USB_DIR_IN, 0, ep->count);
ep->buf = NULL;
// return true;
}
return false;
}
int usb_drv_send(int endpoint, void *ptr, int length)
{
int flags = disable_irq_save();
@ -556,6 +570,7 @@ int usb_drv_send(int endpoint, void *ptr, int length)
return rc;
}
int usb_drv_send_nonblocking(int endpoint, void *ptr, int length)
{
int flags;
@ -574,20 +589,24 @@ int usb_drv_send_nonblocking(int endpoint, void *ptr, int length)
panicf_my("%s: ep is already busy", __func__);
}
TCC7xx_USB_INDEX = ep->id;
count = usb_drv_write_packet(ep->ep, data, length, 512);
data += count;
length -= count;
ep->buf = data;
ep->max_len = length;
ep->count = count;
TCC7xx_USB_EPIE |= ep->mask;
global_ep_irq_mask |= ep->mask;
TCC7xx_USB_INDEX = ep->id;
#if 1
TCC7xx_USB_EP_STAT = 0x2;
/* TODO: use interrupts instead */
while (!usb_drv_write_ep(ep)) {
while (0==(TCC7xx_USB_EP_STAT & 0x2))
;
}
#else
if (!usb_drv_write_ep(ep)) {
TCC7xx_USB_EPIE |= ep->mask;
global_ep_irq_mask |= ep->mask;
}
#endif
restore_irq(flags);
DEBUG(2, "%s end", __func__);