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Speed up USB storage by being a bit smarter in ordering transfer setups

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20982 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Frank Gevaerts 2009-05-18 19:45:24 +00:00
parent 0fd94237f3
commit c8d6a02c5a
1 changed files with 12 additions and 5 deletions
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17
firmware/usbstack/usb_storage.c
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@ -234,6 +234,8 @@ static union {
char *max_lun;
} tb;
static char *cbw_buffer;
static struct {
unsigned int sector;
unsigned int count;
@ -397,6 +399,10 @@ void usb_storage_init_connection(void)
#if CONFIG_CPU == IMX31L || defined(CPU_TCC77X) || defined(CPU_TCC780X) || \
defined(BOOTLOADER) || CONFIG_CPU == DM320
static unsigned char _cbw_buffer[BUFFER_SIZE*2]
USB_DEVBSS_ATTR __attribute__((aligned(32)));
cbw_buffer = (void *)_cbw_buffer;
static unsigned char _transfer_buffer[BUFFER_SIZE*2]
USB_DEVBSS_ATTR __attribute__((aligned(32)));
tb.transfer_buffer = (void *)_transfer_buffer;
@ -410,14 +416,14 @@ void usb_storage_init_connection(void)
unsigned char * audio_buffer;
audio_buffer = audio_get_buffer(false,&bufsize);
tb.transfer_buffer =
(void *)UNCACHED_ADDR((unsigned int)(audio_buffer+31) & 0xffffffe0);
cbw_buffer = (void *)UNCACHED_ADDR((unsigned int)(audio_buffer+31) & 0xffffffe0);
tb.transfer_buffer = cbw_buffer + 1024;
cpucache_invalidate();
#ifdef USB_USE_RAMDISK
ramdisk_buffer = tb.transfer_buffer + BUFFER_SIZE*2;
#endif
#endif
usb_drv_recv(ep_out, tb.transfer_buffer, 1024);
usb_drv_recv(ep_out, cbw_buffer, 1024);
int i;
for(i=0;i<NUM_VOLUMES;i++) {
@ -443,7 +449,7 @@ void usb_storage_disconnect(void)
void usb_storage_transfer_complete(int ep,int dir,int status,int length)
{
(void)ep;
struct command_block_wrapper* cbw = (void*)tb.transfer_buffer;
struct command_block_wrapper* cbw = (void*)cbw_buffer;
//logf("transfer result %X %d", status, length);
switch(state) {
@ -538,7 +544,6 @@ void usb_storage_transfer_complete(int ep,int dir,int status,int length)
queue_broadcast(SYS_USB_READ_DATA, (cur_cmd.lun<<16)+cur_cmd.orig_count);
}
#endif
usb_drv_recv(ep_out, tb.transfer_buffer, 1024);
break;
case SENDING_RESULT:
if(dir==USB_DIR_OUT) {
@ -1093,6 +1098,8 @@ static void send_csw(int status)
sizeof(struct command_status_wrapper));
state = SENDING_CSW;
//logf("CSW: %X",status);
/* Already start waiting for the next command */
usb_drv_recv(ep_out, cbw_buffer, 1024);
if(status == UMS_STATUS_GOOD) {
cur_sense_data.sense_key=0;