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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>
This commit is contained in:
Anton Kochkov 2012-12-19 12:32:32 +04:00 committed by Nico Huber
parent d0ef387033
commit c07fb15f17
1 changed files with 77 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

80
payloads/libpayload/drivers/usb/ehci.c
View File

@ -34,9 +34,83 @@
static void dump_td(u32 addr) static void dump_td(u32 addr)
{ {
qtd_t *td = phys_to_virt(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("+---------------------------------------------------+\n");
usb_debug("- cerr: %x, total_len: %x\n\n", (td->token & QTD_CERR_MASK) >> QTD_CERR_SHIFT, if (((td->token & (3UL << 8)) >> 8) == 2)
(td->token & QTD_TOTAL_LEN_MASK) >> QTD_TOTAL_LEN_SHIFT); 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) static void ehci_start (hci_t *controller)