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authorAnton Kochkov <anton.kochkov@gmail.com>2012-12-19 12:32:32 +0400
committerNico Huber <nico.huber@secunet.com>2013-02-01 11:22:59 +0100
commitc07fb15f17c7da73ec3bb97fe565f7740a879987 (patch)
treef9e5cc118b7753357d2b502c113d0ae39cd56b23 /payloads/libpayload/drivers/usb/ehci.c
parentd0ef387033c0f55dea4019475db06493e6fdb679 (diff)
downloadcoreboot-c07fb15f17c7da73ec3bb97fe565f7740a879987.tar.xz
libpayload: add EHCI QH/qTD debugging
Improve USB debugging for EHCI by adding dump_qh and enhacing dump_td to dump all queue chain and information. Change-Id: Ia8ecf19c6dac085cf9558bdf659a5e74ce332714 Signed-off-by: Anton Kochkov <anton.kochkov@gmail.com> Reviewed-on: http://review.coreboot.org/2053 Tested-by: build bot (Jenkins) Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Nico Huber <nico.huber@secunet.com>
Diffstat (limited to 'payloads/libpayload/drivers/usb/ehci.c')
-rw-r--r--payloads/libpayload/drivers/usb/ehci.c80
1 files changed, 77 insertions, 3 deletions
diff --git a/payloads/libpayload/drivers/usb/ehci.c b/payloads/libpayload/drivers/usb/ehci.c
index f27658dc0e..3e57902c70 100644
--- a/payloads/libpayload/drivers/usb/ehci.c
+++ b/payloads/libpayload/drivers/usb/ehci.c
@@ -34,9 +34,83 @@
static void dump_td(u32 addr)
{
qtd_t *td = phys_to_virt(addr);
- usb_debug("td at phys(%x): status: %x\n\n", addr, td->token & QTD_STATUS_MASK);
- usb_debug("- cerr: %x, total_len: %x\n\n", (td->token & QTD_CERR_MASK) >> QTD_CERR_SHIFT,
- (td->token & QTD_TOTAL_LEN_MASK) >> QTD_TOTAL_LEN_SHIFT);
+ usb_debug("+---------------------------------------------------+\n");
+ if (((td->token & (3UL << 8)) >> 8) == 2)
+ usb_debug("|..[SETUP]..........................................|\n");
+ else if (((td->token & (3UL << 8)) >> 8) == 1)
+ usb_debug("|..[IN].............................................|\n");
+ else if (((td->token & (3UL << 8)) >> 8) == 0)
+ usb_debug("|..[OUT]............................................|\n");
+ else
+ usb_debug("|..[]...............................................|\n");
+ usb_debug("|:|============ EHCI TD at [0x%08lx] ==========|:|\n", addr);
+ usb_debug("|:| ERRORS = [%ld] | TOKEN = [0x%08lx] | |:|\n",
+ 3 - ((td->token & QTD_CERR_MASK) >> QTD_CERR_SHIFT), td->token);
+ usb_debug("|:+-----------------------------------------------+:|\n");
+ usb_debug("|:| Next qTD [0x%08lx] |:|\n", td->next_qtd);
+ usb_debug("|:+-----------------------------------------------+:|\n");
+ usb_debug("|:| Alt. Next qTD [0x%08lx] |:|\n", td->alt_next_qtd);
+ usb_debug("|:+-----------------------------------------------+:|\n");
+ usb_debug("|:| | Bytes to Transfer | [%04ld] |:|\n", (td->token & (0x7FUL << 16)) >> 16);
+ usb_debug("|:| | PID CODE: | [%ld] |:|\n", (td->token & (3UL << 8)) >> 8);
+ usb_debug("|:| | Interrupt On Complete (IOC) | [%ld] |:|\n", (td->token & (1UL << 15)) >> 15);
+ usb_debug("|:| | Status Active | [%ld] |:|\n", (td->token & (1UL << 7)) >> 7);
+ usb_debug("|:| | Status Halted | [%ld] |:|\n", (td->token & (1UL << 6)) >> 6);
+ usb_debug("|:| TOKEN | Status Data Buffer Error | [%ld] |:|\n", (td->token & (1UL << 5)) >> 5);
+ usb_debug("|:| | Status Babble detected | [%ld] |:|\n", (td->token & (1UL << 4)) >> 4);
+ usb_debug("|:| | Status Transaction Error | [%ld] |:|\n", (td->token & (1UL << 3)) >> 3);
+ usb_debug("|:| | Status Missed Micro Frame | [%ld] |:|\n", (td->token & (1UL << 2)) >> 2);
+ usb_debug("|:| | Split Transaction State | [%ld] |:|\n", (td->token & (1UL << 1)) >> 1);
+ usb_debug("|:| | Ping State | [%ld] |:|\n", td->token & 1UL);
+ usb_debug("|:|-----------------------------------------------|:|\n");
+ usb_debug("|...................................................|\n");
+ usb_debug("+---------------------------------------------------+\n");
+}
+
+static void dump_qh(ehci_qh_t *cur)
+{
+ qtd_t *tmp_qtd = NULL;
+ usb_debug("+===================================================+\n");
+ usb_debug("| ############# EHCI QH at [0x%08lx] ########### |\n", virt_to_phys(cur));
+ usb_debug("+---------------------------------------------------+\n");
+ usb_debug("| Horizonal Link Pointer [0x%08lx] |\n", cur->horiz_link_ptr);
+ usb_debug("+------------------[ 0x%08lx ]-------------------+\n", cur->epchar);
+ usb_debug("| | Maximum Packet Length | [%04ld] |\n", ((cur->epchar & (0x7ffUL << 16)) >> 16));
+ usb_debug("| | Device Address | [%ld] |\n", cur->epchar & 0x7F);
+ usb_debug("| | Inactivate on Next Transaction | [%ld] |\n", ((cur->epchar & (1UL << 7)) >> 7));
+ usb_debug("| | Endpoint Number | [%ld] |\n", ((cur->epchar & (0xFUL << 8)) >> 8));
+ usb_debug("| EPCHAR | Endpoint Speed | [%ld] |\n", ((cur->epchar & (3UL << 12)) >> 12));
+ usb_debug("| | Data Toggle Control | [%ld] |\n", ((cur->epchar & (1UL << 14)) >> 14));
+ usb_debug("| | Head of Reclamation List Flag | [%ld] |\n", ((cur->epchar & (1UL << 15)) >> 15));
+ usb_debug("| | Control Endpoint Flag | [%ld] |\n", ((cur->epchar & (1UL << 27)) >> 27));
+ usb_debug("| | Nak Count Reload | [%ld] |\n", ((cur->epchar & (0xFUL << 28)) >> 28));
+ if (((cur->epchar & (1UL << QH_NON_HS_CTRL_EP_SHIFT)) >> QH_NON_HS_CTRL_EP_SHIFT) == 1) { /* Split transaction */
+ usb_debug("+--------+---------[ 0x%08lx ]----------+--------+\n", cur->epcaps);
+ usb_debug("| | Hub Port | [%ld] |\n", ((cur->epcaps & (0x7FUL << 23)) >> 23)); /* [29:23] */
+ usb_debug("| | Hub Address | [%ld] |\n", ((cur->epcaps & (0x7FUL << 16)) >> 16)); /* [22:16] */
+ }
+ usb_debug("+---------------------------------------------------+\n");
+ usb_debug("| Current QTD [0x%08lx] |\n", cur->current_td_ptr);
+
+ if (!((cur->horiz_link_ptr == 0) && (cur->epchar == 0))) {
+ /* Dump overlay QTD for this QH */
+ usb_debug("+---------------------------------------------------+\n");
+ usb_debug("|::::::::::::::::::: QTD OVERLAY :::::::::::::::::::|\n");
+ dump_td(virt_to_phys((void *)&(cur->td)));
+ /* Dump all TD tree for this QH */
+ tmp_qtd = (qtd_t *)phys_to_virt((cur->td.next_qtd & ~0x1FUL));
+ if (tmp_qtd != NULL)
+ usb_debug("|:::::::::::::::::: EHCI QTD CHAIN :::::::::::::::::|\n");
+ while (tmp_qtd != NULL)
+ {
+ dump_td(virt_to_phys(tmp_qtd));
+ tmp_qtd = (qtd_t *)phys_to_virt((tmp_qtd->next_qtd & ~0x1FUL));
+ }
+ usb_debug("|:::::::::::::::: EOF EHCI QTD CHAIN :::::::::::::::|\n");
+ usb_debug("+---------------------------------------------------+\n");
+ } else {
+ usb_debug("+---------------------------------------------------+\n");
+ }
}
static void ehci_start (hci_t *controller)