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M:Robe 500: Make endpoint requests more flexible.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22262 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Karl Kurbjun 2009-08-12 02:29:07 +00:00
parent cc4be72d15
commit 771b35b7be
1 changed files with 24 additions and 20 deletions
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38
firmware/drivers/m66591.c
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@ -575,37 +575,41 @@ int usb_drv_request_endpoint(int type, int dir) {
int ep; int ep;
int pipecfg = 0; int pipecfg = 0;
/* The endpoint/pipes are hard coded: This could be more flexible */
if (type == USB_ENDPOINT_XFER_BULK) { if (type == USB_ENDPOINT_XFER_BULK) {
/* Enalbe double buffer mode */ /* Enable double buffer mode (only used for ep 1 and 2) */
pipecfg |= 1<<9; pipecfg |= 1<<9;
if (dir == USB_DIR_IN) { /* Bulk endpoints must be between 1 and 4 inclusive */
pipecfg |= (1<<4); ep=1;
ep = 2;
} else { while(M66591_eps[ep].busy && ep++<5);
ep = 1;
/* If this reached 5 the endpoints were all busy */
if(ep==5) {
logf("mxx: ep %d busy", ep);
return -1;
} }
} else if (type == USB_ENDPOINT_XFER_INT) { } else if (type == USB_ENDPOINT_XFER_INT) {
if (dir == USB_DIR_IN) { ep=5;
pipecfg |= (1<<4);
ep = 6; while(M66591_eps[ep].busy && ep++<7);
} else {
ep = 5; /* If this reached 7 the endpoints were all busy */
if(ep==7) {
logf("mxx: ep %d busy", ep);
return -1;
} }
} else { } else {
/* Not a supported type */ /* Not a supported type */
return -1; return -1;
} }
if (dir == USB_DIR_IN) {
pipecfg |= (1<<4);
}
if (!M66591_eps[ep].busy) {
M66591_eps[ep].busy = true; M66591_eps[ep].busy = true;
M66591_eps[ep].dir = dir; M66591_eps[ep].dir = dir;
} else {
logf("mxx: ep %d busy", ep);
return -1;
}
M66591_PIPE_CFGSEL=ep; M66591_PIPE_CFGSEL=ep;