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authorAnton Kochkov <anton.kochkov@gmail.com>2012-12-19 14:10:05 +0400
committerPatrick Georgi <patrick@georgi-clan.de>2012-12-19 15:19:24 +0100
commitcf7b63ff65270d83540828cfbd2314b5d82dcb9d (patch)
tree467e49b856c7cfb5576317f633e0e6294f9169bf /payloads/libpayload/drivers/usb
parentea9a1f60177bad3e8c63f030f55dec87d0dd245c (diff)
downloadcoreboot-cf7b63ff65270d83540828cfbd2314b5d82dcb9d.tar.xz
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>
Diffstat (limited to 'payloads/libpayload/drivers/usb')
-rw-r--r--payloads/libpayload/drivers/usb/ohci.c90
1 files changed, 75 insertions, 15 deletions
diff --git a/payloads/libpayload/drivers/usb/ohci.c b/payloads/libpayload/drivers/usb/ohci.c
index ece31e443e..3985f1bd03 100644
--- a/payloads/libpayload/drivers/usb/ohci.c
+++ b/payloads/libpayload/drivers/usb/ohci.c
@@ -47,6 +47,77 @@ 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)
{
if (controller == NULL)
@@ -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);