Anton Kochkov (anton.kochkov@gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/2053
-gerrit
commit f0a202e60445d7d133b9477bfc7bb64533dcad47 Author: Anton Kochkov anton.kochkov@gmail.com Date: Wed Dec 19 12:32:32 2012 +0400
libpayload: added EHCI QH/qTD debugging
Improved 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 --- payloads/libpayload/drivers/usb/ehci.c | 81 ++++++++++++++++++++++++++++++++-- 1 file changed, 78 insertions(+), 3 deletions(-)
diff --git a/payloads/libpayload/drivers/usb/ehci.c b/payloads/libpayload/drivers/usb/ehci.c index f27658d..4ea5a03 100644 --- a/payloads/libpayload/drivers/usb/ehci.c +++ b/payloads/libpayload/drivers/usb/ehci.c @@ -34,9 +34,84 @@ 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) +{ + ehci_qtd_t *tmp_qtd = NULL; + ehci_qh_t *tmp_qh = 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)