^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-1.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * OHCI HCD (Host Controller Driver) for USB.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * This file is licenced under the GPL.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) /*-------------------------------------------------------------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define edstring(ed_type) ({ char *temp; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) switch (ed_type) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) case PIPE_CONTROL: temp = "ctrl"; break; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) case PIPE_BULK: temp = "bulk"; break; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) case PIPE_INTERRUPT: temp = "intr"; break; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) default: temp = "isoc"; break; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) } temp;})
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define pipestring(pipe) edstring(usb_pipetype(pipe))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define ohci_dbg_sw(ohci, next, size, format, arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) if (next != NULL) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) unsigned s_len; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) s_len = scnprintf (*next, *size, format, ## arg ); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) *size -= s_len; *next += s_len; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) } else \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) ohci_dbg(ohci,format, ## arg ); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) } while (0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) /* Version for use where "next" is the address of a local variable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define ohci_dbg_nosw(ohci, next, size, format, arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) unsigned s_len; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) s_len = scnprintf(*next, *size, format, ## arg); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) *size -= s_len; *next += s_len; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) } while (0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) static void ohci_dump_intr_mask (
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) struct ohci_hcd *ohci,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) char *label,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) u32 mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) char **next,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) unsigned *size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) ohci_dbg_sw (ohci, next, size, "%s 0x%08x%s%s%s%s%s%s%s%s%s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) label,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) (mask & OHCI_INTR_MIE) ? " MIE" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) (mask & OHCI_INTR_OC) ? " OC" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) (mask & OHCI_INTR_RHSC) ? " RHSC" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) (mask & OHCI_INTR_FNO) ? " FNO" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) (mask & OHCI_INTR_UE) ? " UE" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) (mask & OHCI_INTR_RD) ? " RD" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) (mask & OHCI_INTR_SF) ? " SF" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) (mask & OHCI_INTR_WDH) ? " WDH" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) (mask & OHCI_INTR_SO) ? " SO" : ""
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) );
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) static void maybe_print_eds (
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) struct ohci_hcd *ohci,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) char *label,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) u32 value,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) char **next,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) unsigned *size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) if (value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) ohci_dbg_sw (ohci, next, size, "%s %08x\n", label, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) static char *hcfs2string (int state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) switch (state) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) case OHCI_USB_RESET: return "reset";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) case OHCI_USB_RESUME: return "resume";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) case OHCI_USB_OPER: return "operational";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) case OHCI_USB_SUSPEND: return "suspend";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) return "?";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) static const char *rh_state_string(struct ohci_hcd *ohci)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) switch (ohci->rh_state) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) case OHCI_RH_HALTED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) return "halted";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) case OHCI_RH_SUSPENDED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) return "suspended";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) case OHCI_RH_RUNNING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) return "running";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) return "?";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) // dump control and status registers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) ohci_dump_status (struct ohci_hcd *controller, char **next, unsigned *size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) struct ohci_regs __iomem *regs = controller->regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) u32 temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) temp = ohci_readl (controller, ®s->revision) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) ohci_dbg_sw (controller, next, size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) "OHCI %d.%d, %s legacy support registers, rh state %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 0x03 & (temp >> 4), (temp & 0x0f),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) (temp & 0x0100) ? "with" : "NO",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) rh_state_string(controller));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) temp = ohci_readl (controller, ®s->control);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) ohci_dbg_sw (controller, next, size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) "control 0x%03x%s%s%s HCFS=%s%s%s%s%s CBSR=%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) temp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) (temp & OHCI_CTRL_RWE) ? " RWE" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) (temp & OHCI_CTRL_RWC) ? " RWC" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) (temp & OHCI_CTRL_IR) ? " IR" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) hcfs2string (temp & OHCI_CTRL_HCFS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) (temp & OHCI_CTRL_BLE) ? " BLE" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) (temp & OHCI_CTRL_CLE) ? " CLE" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) (temp & OHCI_CTRL_IE) ? " IE" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) (temp & OHCI_CTRL_PLE) ? " PLE" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) temp & OHCI_CTRL_CBSR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) );
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) temp = ohci_readl (controller, ®s->cmdstatus);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) ohci_dbg_sw (controller, next, size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) "cmdstatus 0x%05x SOC=%d%s%s%s%s\n", temp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) (temp & OHCI_SOC) >> 16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) (temp & OHCI_OCR) ? " OCR" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) (temp & OHCI_BLF) ? " BLF" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) (temp & OHCI_CLF) ? " CLF" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) (temp & OHCI_HCR) ? " HCR" : ""
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) );
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) ohci_dump_intr_mask (controller, "intrstatus",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) ohci_readl (controller, ®s->intrstatus),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) next, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) ohci_dump_intr_mask (controller, "intrenable",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) ohci_readl (controller, ®s->intrenable),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) next, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) // intrdisable always same as intrenable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) maybe_print_eds (controller, "ed_periodcurrent",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) ohci_readl (controller, ®s->ed_periodcurrent),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) next, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) maybe_print_eds (controller, "ed_controlhead",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) ohci_readl (controller, ®s->ed_controlhead),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) next, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) maybe_print_eds (controller, "ed_controlcurrent",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) ohci_readl (controller, ®s->ed_controlcurrent),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) next, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) maybe_print_eds (controller, "ed_bulkhead",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) ohci_readl (controller, ®s->ed_bulkhead),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) next, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) maybe_print_eds (controller, "ed_bulkcurrent",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) ohci_readl (controller, ®s->ed_bulkcurrent),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) next, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) maybe_print_eds (controller, "donehead",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) ohci_readl (controller, ®s->donehead), next, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) #define dbg_port_sw(hc,num,value,next,size) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) ohci_dbg_sw (hc, next, size, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) "roothub.portstatus [%d] " \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) "0x%08x%s%s%s%s%s%s%s%s%s%s%s%s\n", \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) num, temp, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) (temp & RH_PS_PRSC) ? " PRSC" : "", \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) (temp & RH_PS_OCIC) ? " OCIC" : "", \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) (temp & RH_PS_PSSC) ? " PSSC" : "", \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) (temp & RH_PS_PESC) ? " PESC" : "", \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) (temp & RH_PS_CSC) ? " CSC" : "", \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) (temp & RH_PS_LSDA) ? " LSDA" : "", \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) (temp & RH_PS_PPS) ? " PPS" : "", \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) (temp & RH_PS_PRS) ? " PRS" : "", \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) (temp & RH_PS_POCI) ? " POCI" : "", \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) (temp & RH_PS_PSS) ? " PSS" : "", \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) (temp & RH_PS_PES) ? " PES" : "", \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) (temp & RH_PS_CCS) ? " CCS" : "" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) );
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) ohci_dump_roothub (
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) struct ohci_hcd *controller,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) int verbose,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) char **next,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) unsigned *size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) u32 temp, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) temp = roothub_a (controller);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) if (temp == ~(u32)0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) if (verbose) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) ohci_dbg_sw (controller, next, size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) "roothub.a %08x POTPGT=%d%s%s%s%s%s NDP=%d(%d)\n", temp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) ((temp & RH_A_POTPGT) >> 24) & 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) (temp & RH_A_NOCP) ? " NOCP" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) (temp & RH_A_OCPM) ? " OCPM" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) (temp & RH_A_DT) ? " DT" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) (temp & RH_A_NPS) ? " NPS" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) (temp & RH_A_PSM) ? " PSM" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) (temp & RH_A_NDP), controller->num_ports
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) );
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) temp = roothub_b (controller);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) ohci_dbg_sw (controller, next, size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) "roothub.b %08x PPCM=%04x DR=%04x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) temp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) (temp & RH_B_PPCM) >> 16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) (temp & RH_B_DR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) );
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) temp = roothub_status (controller);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) ohci_dbg_sw (controller, next, size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) "roothub.status %08x%s%s%s%s%s%s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) temp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) (temp & RH_HS_CRWE) ? " CRWE" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) (temp & RH_HS_OCIC) ? " OCIC" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) (temp & RH_HS_LPSC) ? " LPSC" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) (temp & RH_HS_DRWE) ? " DRWE" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) (temp & RH_HS_OCI) ? " OCI" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) (temp & RH_HS_LPS) ? " LPS" : ""
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) );
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) for (i = 0; i < controller->num_ports; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) temp = roothub_portstatus (controller, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) dbg_port_sw (controller, i, temp, next, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) static void ohci_dump(struct ohci_hcd *controller)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) ohci_dbg (controller, "OHCI controller state\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) // dumps some of the state we know about
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) ohci_dump_status (controller, NULL, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) if (controller->hcca)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) ohci_dbg (controller,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) "hcca frame #%04x\n", ohci_frame_no(controller));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) ohci_dump_roothub (controller, 1, NULL, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) static const char data0 [] = "DATA0";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) static const char data1 [] = "DATA1";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) static void ohci_dump_td (const struct ohci_hcd *ohci, const char *label,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) const struct td *td)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) u32 tmp = hc32_to_cpup (ohci, &td->hwINFO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) ohci_dbg (ohci, "%s td %p%s; urb %p index %d; hw next td %08x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) label, td,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) (tmp & TD_DONE) ? " (DONE)" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) td->urb, td->index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) hc32_to_cpup (ohci, &td->hwNextTD));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) if ((tmp & TD_ISO) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) const char *toggle, *pid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) u32 cbp, be;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) switch (tmp & TD_T) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) case TD_T_DATA0: toggle = data0; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) case TD_T_DATA1: toggle = data1; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) case TD_T_TOGGLE: toggle = "(CARRY)"; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) default: toggle = "(?)"; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) switch (tmp & TD_DP) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) case TD_DP_SETUP: pid = "SETUP"; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) case TD_DP_IN: pid = "IN"; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) case TD_DP_OUT: pid = "OUT"; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) default: pid = "(bad pid)"; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) ohci_dbg (ohci, " info %08x CC=%x %s DI=%d %s %s\n", tmp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) TD_CC_GET(tmp), /* EC, */ toggle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) (tmp & TD_DI) >> 21, pid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) (tmp & TD_R) ? "R" : "");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) cbp = hc32_to_cpup (ohci, &td->hwCBP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) be = hc32_to_cpup (ohci, &td->hwBE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) ohci_dbg (ohci, " cbp %08x be %08x (len %d)\n", cbp, be,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) cbp ? (be + 1 - cbp) : 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) unsigned i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) ohci_dbg (ohci, " info %08x CC=%x FC=%d DI=%d SF=%04x\n", tmp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) TD_CC_GET(tmp),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) (tmp >> 24) & 0x07,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) (tmp & TD_DI) >> 21,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) tmp & 0x0000ffff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) ohci_dbg (ohci, " bp0 %08x be %08x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) hc32_to_cpup (ohci, &td->hwCBP) & ~0x0fff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) hc32_to_cpup (ohci, &td->hwBE));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) for (i = 0; i < MAXPSW; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) u16 psw = ohci_hwPSW (ohci, td, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) int cc = (psw >> 12) & 0x0f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) ohci_dbg (ohci, " psw [%d] = %2x, CC=%x %s=%d\n", i,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) psw, cc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) (cc >= 0x0e) ? "OFFSET" : "SIZE",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) psw & 0x0fff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) /* caller MUST own hcd spinlock if verbose is set! */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) static void __maybe_unused
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) ohci_dump_ed (const struct ohci_hcd *ohci, const char *label,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) const struct ed *ed, int verbose)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) u32 tmp = hc32_to_cpu (ohci, ed->hwINFO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) char *type = "";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) ohci_dbg (ohci, "%s, ed %p state 0x%x type %s; next ed %08x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) label,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) ed, ed->state, edstring (ed->type),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) hc32_to_cpup (ohci, &ed->hwNextED));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) switch (tmp & (ED_IN|ED_OUT)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) case ED_OUT: type = "-OUT"; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) case ED_IN: type = "-IN"; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) /* else from TDs ... control */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) ohci_dbg (ohci,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) " info %08x MAX=%d%s%s%s%s EP=%d%s DEV=%d\n", tmp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 0x03ff & (tmp >> 16),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) (tmp & ED_DEQUEUE) ? " DQ" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) (tmp & ED_ISO) ? " ISO" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) (tmp & ED_SKIP) ? " SKIP" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) (tmp & ED_LOWSPEED) ? " LOW" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 0x000f & (tmp >> 7),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 0x007f & tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) tmp = hc32_to_cpup (ohci, &ed->hwHeadP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) ohci_dbg (ohci, " tds: head %08x %s%s tail %08x%s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) tmp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) (tmp & ED_C) ? data1 : data0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) (tmp & ED_H) ? " HALT" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) hc32_to_cpup (ohci, &ed->hwTailP),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) verbose ? "" : " (not listing)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) if (verbose) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) struct list_head *tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) /* use ed->td_list because HC concurrently modifies
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) * hwNextTD as it accumulates ed_donelist.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) list_for_each (tmp, &ed->td_list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) struct td *td;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) td = list_entry (tmp, struct td, td_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) ohci_dump_td (ohci, " ->", td);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) /*-------------------------------------------------------------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) static int debug_async_open(struct inode *, struct file *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) static int debug_periodic_open(struct inode *, struct file *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) static int debug_registers_open(struct inode *, struct file *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) static int debug_async_open(struct inode *, struct file *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) static ssize_t debug_output(struct file*, char __user*, size_t, loff_t*);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) static int debug_close(struct inode *, struct file *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) static const struct file_operations debug_async_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) .open = debug_async_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) .read = debug_output,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) .release = debug_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) .llseek = default_llseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) static const struct file_operations debug_periodic_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) .open = debug_periodic_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) .read = debug_output,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) .release = debug_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) .llseek = default_llseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) static const struct file_operations debug_registers_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) .open = debug_registers_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) .read = debug_output,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) .release = debug_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) .llseek = default_llseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) static struct dentry *ohci_debug_root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) struct debug_buffer {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) ssize_t (*fill_func)(struct debug_buffer *); /* fill method */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) struct ohci_hcd *ohci;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) struct mutex mutex; /* protect filling of buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) size_t count; /* number of characters filled into buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) char *page;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) show_list (struct ohci_hcd *ohci, char *buf, size_t count, struct ed *ed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) unsigned temp, size = count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) if (!ed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) /* print first --> last */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) while (ed->ed_prev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) ed = ed->ed_prev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) /* dump a snapshot of the bulk or control schedule */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) while (ed) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) u32 info = hc32_to_cpu (ohci, ed->hwINFO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) u32 headp = hc32_to_cpu (ohci, ed->hwHeadP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) struct list_head *entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) struct td *td;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) temp = scnprintf (buf, size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) "ed/%p %cs dev%d ep%d%s max %d %08x%s%s %s",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) ed,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) (info & ED_LOWSPEED) ? 'l' : 'f',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) info & 0x7f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) (info >> 7) & 0xf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) (info & ED_IN) ? "in" : "out",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) 0x03ff & (info >> 16),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) (info & ED_SKIP) ? " s" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) (headp & ED_H) ? " H" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) (headp & ED_C) ? data1 : data0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) size -= temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) buf += temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) list_for_each (entry, &ed->td_list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) u32 cbp, be;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) td = list_entry (entry, struct td, td_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) info = hc32_to_cpup (ohci, &td->hwINFO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) cbp = hc32_to_cpup (ohci, &td->hwCBP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) be = hc32_to_cpup (ohci, &td->hwBE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) temp = scnprintf (buf, size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) "\n\ttd %p %s %d cc=%x urb %p (%08x)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) td,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) ({ char *pid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) switch (info & TD_DP) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) case TD_DP_SETUP: pid = "setup"; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) case TD_DP_IN: pid = "in"; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) case TD_DP_OUT: pid = "out"; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) default: pid = "(?)"; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) } pid;}),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) cbp ? (be + 1 - cbp) : 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) TD_CC_GET (info), td->urb, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) size -= temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) buf += temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) temp = scnprintf (buf, size, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) size -= temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) buf += temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) ed = ed->ed_next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) return count - size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) static ssize_t fill_async_buffer(struct debug_buffer *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) struct ohci_hcd *ohci;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) size_t temp, size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) ohci = buf->ohci;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) size = PAGE_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) /* display control and bulk lists together, for simplicity */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) spin_lock_irqsave (&ohci->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) temp = show_list(ohci, buf->page, size, ohci->ed_controltail);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) temp += show_list(ohci, buf->page + temp, size - temp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) ohci->ed_bulktail);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) spin_unlock_irqrestore (&ohci->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) return temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) #define DBG_SCHED_LIMIT 64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) struct ohci_hcd *ohci;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) struct ed **seen, *ed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) unsigned temp, size, seen_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) char *next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) unsigned i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) seen = kmalloc_array(DBG_SCHED_LIMIT, sizeof(*seen), GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) if (!seen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) seen_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) ohci = buf->ohci;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) next = buf->page;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) size = PAGE_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) temp = scnprintf (next, size, "size = %d\n", NUM_INTS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) size -= temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) next += temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) /* dump a snapshot of the periodic schedule (and load) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) spin_lock_irqsave (&ohci->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) for (i = 0; i < NUM_INTS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) ed = ohci->periodic[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) if (!ed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) temp = scnprintf (next, size, "%2d [%3d]:", i, ohci->load [i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) size -= temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) next += temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) temp = scnprintf (next, size, " ed%d/%p",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) ed->interval, ed);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) size -= temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) next += temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) for (temp = 0; temp < seen_count; temp++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) if (seen [temp] == ed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) /* show more info the first time around */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) if (temp == seen_count) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) u32 info = hc32_to_cpu (ohci, ed->hwINFO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) struct list_head *entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) unsigned qlen = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) /* qlen measured here in TDs, not urbs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) list_for_each (entry, &ed->td_list)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) qlen++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) temp = scnprintf (next, size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) " (%cs dev%d ep%d%s-%s qlen %u"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) " max %d %08x%s%s)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) (info & ED_LOWSPEED) ? 'l' : 'f',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) info & 0x7f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) (info >> 7) & 0xf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) (info & ED_IN) ? "in" : "out",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) (info & ED_ISO) ? "iso" : "int",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) qlen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) 0x03ff & (info >> 16),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) (info & ED_SKIP) ? " K" : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) (ed->hwHeadP &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) cpu_to_hc32(ohci, ED_H)) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) " H" : "");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) size -= temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) next += temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) if (seen_count < DBG_SCHED_LIMIT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) seen [seen_count++] = ed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) ed = ed->ed_next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) /* we've seen it and what's after */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) temp = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) ed = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) } while (ed);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) temp = scnprintf (next, size, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) size -= temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) next += temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) spin_unlock_irqrestore (&ohci->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) kfree (seen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) return PAGE_SIZE - size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) #undef DBG_SCHED_LIMIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) static ssize_t fill_registers_buffer(struct debug_buffer *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) struct usb_hcd *hcd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) struct ohci_hcd *ohci;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) struct ohci_regs __iomem *regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) unsigned temp, size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) char *next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) u32 rdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) ohci = buf->ohci;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) hcd = ohci_to_hcd(ohci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) regs = ohci->regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) next = buf->page;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) size = PAGE_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) spin_lock_irqsave (&ohci->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) /* dump driver info, then registers in spec order */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) ohci_dbg_nosw(ohci, &next, &size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) "bus %s, device %s\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) "%s\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) "%s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) hcd->self.controller->bus->name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) dev_name(hcd->self.controller),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) hcd->product_desc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) hcd_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) if (!HCD_HW_ACCESSIBLE(hcd)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) size -= scnprintf (next, size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) "SUSPENDED (no register access)\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) goto done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) ohci_dump_status(ohci, &next, &size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) /* hcca */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) if (ohci->hcca)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) ohci_dbg_nosw(ohci, &next, &size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) "hcca frame 0x%04x\n", ohci_frame_no(ohci));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) /* other registers mostly affect frame timings */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) rdata = ohci_readl (ohci, ®s->fminterval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) temp = scnprintf (next, size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) "fmintvl 0x%08x %sFSMPS=0x%04x FI=0x%04x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) rdata, (rdata >> 31) ? "FIT " : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) (rdata >> 16) & 0xefff, rdata & 0xffff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) size -= temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) next += temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) rdata = ohci_readl (ohci, ®s->fmremaining);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) temp = scnprintf (next, size, "fmremaining 0x%08x %sFR=0x%04x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) rdata, (rdata >> 31) ? "FRT " : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) rdata & 0x3fff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) size -= temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) next += temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) rdata = ohci_readl (ohci, ®s->periodicstart);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) temp = scnprintf (next, size, "periodicstart 0x%04x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) rdata & 0x3fff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) size -= temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) next += temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) rdata = ohci_readl (ohci, ®s->lsthresh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) temp = scnprintf (next, size, "lsthresh 0x%04x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) rdata & 0x3fff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) size -= temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) next += temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) temp = scnprintf (next, size, "hub poll timer %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) HCD_POLL_RH(ohci_to_hcd(ohci)) ? "ON" : "off");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) size -= temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) next += temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) /* roothub */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) ohci_dump_roothub (ohci, 1, &next, &size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) done:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) spin_unlock_irqrestore (&ohci->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) return PAGE_SIZE - size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) static struct debug_buffer *alloc_buffer(struct ohci_hcd *ohci,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) ssize_t (*fill_func)(struct debug_buffer *))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) struct debug_buffer *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) buf = kzalloc(sizeof(struct debug_buffer), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) if (buf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) buf->ohci = ohci;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) buf->fill_func = fill_func;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) mutex_init(&buf->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) return buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) static int fill_buffer(struct debug_buffer *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) if (!buf->page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) buf->page = (char *)get_zeroed_page(GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) if (!buf->page) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) ret = buf->fill_func(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) if (ret >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) buf->count = ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) static ssize_t debug_output(struct file *file, char __user *user_buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) size_t len, loff_t *offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) struct debug_buffer *buf = file->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) mutex_lock(&buf->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) if (buf->count == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) ret = fill_buffer(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) if (ret != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) mutex_unlock(&buf->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) mutex_unlock(&buf->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) ret = simple_read_from_buffer(user_buf, len, offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) buf->page, buf->count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) static int debug_close(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) struct debug_buffer *buf = file->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) if (buf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) if (buf->page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) free_page((unsigned long)buf->page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) kfree(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) static int debug_async_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) file->private_data = alloc_buffer(inode->i_private, fill_async_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) return file->private_data ? 0 : -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) static int debug_periodic_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) file->private_data = alloc_buffer(inode->i_private,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) fill_periodic_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) return file->private_data ? 0 : -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) static int debug_registers_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) file->private_data = alloc_buffer(inode->i_private,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) fill_registers_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) return file->private_data ? 0 : -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) static inline void create_debug_files (struct ohci_hcd *ohci)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) struct usb_bus *bus = &ohci_to_hcd(ohci)->self;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) struct dentry *root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) root = debugfs_create_dir(bus->bus_name, ohci_debug_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) ohci->debug_dir = root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) debugfs_create_file("async", S_IRUGO, root, ohci, &debug_async_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) debugfs_create_file("periodic", S_IRUGO, root, ohci,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) &debug_periodic_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) debugfs_create_file("registers", S_IRUGO, root, ohci,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) &debug_registers_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) ohci_dbg (ohci, "created debug files\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) static inline void remove_debug_files (struct ohci_hcd *ohci)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) debugfs_remove_recursive(ohci->debug_dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) /*-------------------------------------------------------------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785)
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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