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libpayload: improving OHCI TD/ED debugging 

Improving USB debugging for OHCI by enhacing dump_td
and adding dump_ed function to dump all chain information

Change-Id: Ia8b2a9b53e79b1f280fd12ea0d9233fc875e0b57
Signed-off-by: Anton Kochkov <anton.kochkov@gmail.com>
Reviewed-on: http://review.coreboot.org/2056
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.huber@secunet.com>
This commit is contained in:
Anton Kochkov 2012-12-19 14:10:05 +04:00 committed by Patrick Georgi
parent ea9a1f6017
commit cf7b63ff65
1 changed files with 75 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

90
payloads/libpayload/drivers/usb/ohci.c
View File

@ -46,6 +46,77 @@ static void ohci_destroy_intr_queue (endpoint_t *ep, void *queue);
static u8* ohci_poll_intr_queue (void *queue);
static void ohci_process_done_queue(ohci_t *ohci, int spew_debug);
static void
dump_td (td_t *cur)
{
usb_debug("+---------------------------------------------------+\n");
if (((cur->config & (3UL << 19)) >> 19) == 0)
usb_debug("|..[SETUP]..........................................|\n");
else if (((cur->config & (3UL << 8)) >> 8) == 2)
usb_debug("|..[IN].............................................|\n");
else if (((cur->config & (3UL << 8)) >> 8) == 1)
usb_debug("|..[OUT]............................................|\n");
else
usb_debug("|..[]...............................................|\n");
usb_debug("|:|============ OHCI TD at [0x%08lx] ==========|:|\n", virt_to_phys(cur));
usb_debug("|:| ERRORS = [%ld] | CONFIG = [0x%08lx] | |:|\n",
3 - ((cur->config & (3UL << 26)) >> 26), cur->config);
usb_debug("|:+-----------------------------------------------+:|\n");
usb_debug("|:| C | Condition Code | [%02ld] |:|\n", (cur->config & (0xFUL << 28)) >> 28);
usb_debug("|:| O | Direction/PID | [%ld] |:|\n", (cur->config & (3UL << 19)) >> 19);
usb_debug("|:| N | Buffer Rounding | [%ld] |:|\n", (cur->config & (1UL << 18)) >> 18);
usb_debug("|:| F | Delay Intterrupt | [%ld] |:|\n", (cur->config & (7UL << 21)) >> 21);
usb_debug("|:| I | Data Toggle | [%ld] |:|\n", (cur->config & (3UL << 24)) >> 24);
usb_debug("|:| G | Error Count | [%ld] |:|\n", (cur->config & (3UL << 26)) >> 26);
usb_debug("|:+-----------------------------------------------+:|\n");
usb_debug("|:| Current Buffer Pointer [0x%08lx] |:|\n", cur->current_buffer_pointer);
usb_debug("|:+-----------------------------------------------+:|\n");
usb_debug("|:| Next TD [0x%08lx] |:|\n", cur->next_td);
usb_debug("|:+-----------------------------------------------+:|\n");
usb_debug("|:| Current Buffer End [0x%08lx] |:|\n", cur->buffer_end);
usb_debug("|:|-----------------------------------------------|:|\n");
usb_debug("|...................................................|\n");
usb_debug("+---------------------------------------------------+\n");
}
static void
dump_ed (ed_t far *cur)
{
td_t *tmp_td = NULL;
usb_debug("+===================================================+\n");
usb_debug("| ############# OHCI ED at [0x%08lx] ########### |\n", virt_to_phys(cur));
usb_debug("+---------------------------------------------------+\n");
usb_debug("| Next Endpoint Descriptor [0x%08lx] |\n", cur->next_ed & ~0xFUL);
usb_debug("+---------------------------------------------------+\n");
usb_debug("| | @ 0x%08lx : |\n", cur->config);
usb_debug("| C | Maximum Packet Length | [%04ld] |\n", ((cur->config & (0x3fffUL << 16)) >> 16));
usb_debug("| O | Function Address | [%04ld] |\n", cur->config & 0x7F);
usb_debug("| N | Endpoint Number | [%02ld] |\n", (cur->config & (0xFUL << 7)) >> 7);
usb_debug("| F | Endpoint Direction | [%ld] |\n", ((cur->config & (3UL << 11)) >> 11));
usb_debug("| I | Endpoint Speed | [%ld] |\n", ((cur->config & (1UL << 13)) >> 13));
usb_debug("| G | Skip | [%ld] |\n", ((cur->config & (1UL << 14)) >> 14));
usb_debug("| | Format | [%ld] |\n", ((cur->config & (1UL << 15)) >> 15));
usb_debug("+---------------------------------------------------+\n");
usb_debug("| TD Queue Tail Pointer [0x%08lx] |\n", cur->tail_pointer & ~0xFUL);
usb_debug("+---------------------------------------------------+\n");
usb_debug("| TD Queue Head Pointer [0x%08lx] |\n", cur->head_pointer & ~0xFUL);
usb_debug("| CarryToggleBit [%d] Halted [%d] |\n", (u16)(cur->head_pointer & 0x2UL)>>1, (u16)(cur->head_pointer & 0x1UL));
tmp_td = (td_t *)phys_to_virt((cur->head_pointer & ~0xFUL));
if ((cur->head_pointer & ~0xFUL) != (cur->tail_pointer & ~0xFUL)) {
usb_debug("|:::::::::::::::::: OHCI TD CHAIN ::::::::::::::::::|\n");
while (virt_to_phys(tmp_td) != (cur->tail_pointer & ~0xFUL))
{
dump_td(tmp_td, 1);
tmp_td = (td_t *)phys_to_virt((tmp_td->next_td & ~0xFUL));
}
usb_debug("|:::::::::::::::: EOF OHCI TD CHAIN ::::::::::::::::|\n");
usb_debug("+---------------------------------------------------+\n");
} else {
usb_debug("+---------------------------------------------------+\n");
}
}
static void
ohci_reset (hci_t *controller)
{
@ -205,20 +276,6 @@ ohci_stop (hci_t *controller)
// TODO: turn off all operation of OHCI
}
#if 0
static void
dump_td(td_t *cur, int level)
{
#ifdef USB_DEBUG
static const char *spaces=" ";
const char *spc=spaces+(10-level);
usb_debug("%std at %x (%s), condition code: %s\n", spc, cur, direction[(cur->config & TD_DIRECTION_MASK) >> TD_DIRECTION_SHIFT],
completion_codes[(cur->config & TD_CC_MASK) >> TD_CC_SHIFT]);
usb_debug("%s toggle: %x\n", spc, !!(cur->config & TD_TOGGLE_DATA1));
#endif
}
#endif
static int
wait_for_ed(usbdev_t *dev, ed_t *head, int pages)
{
@ -370,8 +427,11 @@ ohci_control (usbdev_t *dev, direction_t dir, int drlen, void *devreq, int dalen
head->tail_pointer = virt_to_phys(final_td);
head->head_pointer = virt_to_phys(first_td);
usb_debug("doing control transfer with %x. first_td at %x\n",
usb_debug("ohci_control(): doing transfer with %x. first_td at %x\n",
head->config & ED_FUNC_MASK, virt_to_phys(first_td));
#if 0
dump_ed(head);
#endif
/* activate schedule */
OHCI_INST(dev->controller)->opreg->HcControlHeadED = virt_to_phys(head);