diff options
Diffstat (limited to 'drivers/usb/host/xhci.h')
-rw-r--r-- | drivers/usb/host/xhci.h | 52 |
1 files changed, 28 insertions, 24 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 3c7d281672ae..99ae9994f5eb 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -22,6 +22,9 @@ #include "xhci-ext-caps.h" #include "pci-quirks.h" +/* max buffer size for trace and debug messages */ +#define XHCI_MSG_MAX 500 + /* xHCI PCI Configuration Registers */ #define XHCI_SBRN_OFFSET (0x60) @@ -2235,15 +2238,14 @@ static inline char *xhci_slot_state_string(u32 state) } } -static inline const char *xhci_decode_trb(u32 field0, u32 field1, u32 field2, - u32 field3) +static inline const char *xhci_decode_trb(char *str, size_t size, + u32 field0, u32 field1, u32 field2, u32 field3) { - static char str[256]; int type = TRB_FIELD_TO_TYPE(field3); switch (type) { case TRB_LINK: - sprintf(str, + snprintf(str, size, "LINK %08x%08x intr %d type '%s' flags %c:%c:%c:%c", field1, field0, GET_INTR_TARGET(field2), xhci_trb_type_string(type), @@ -2260,7 +2262,7 @@ static inline const char *xhci_decode_trb(u32 field0, u32 field1, u32 field2, case TRB_HC_EVENT: case TRB_DEV_NOTE: case TRB_MFINDEX_WRAP: - sprintf(str, + snprintf(str, size, "TRB %08x%08x status '%s' len %d slot %d ep %d type '%s' flags %c:%c", field1, field0, xhci_trb_comp_code_string(GET_COMP_CODE(field2)), @@ -2273,7 +2275,8 @@ static inline const char *xhci_decode_trb(u32 field0, u32 field1, u32 field2, break; case TRB_SETUP: - sprintf(str, "bRequestType %02x bRequest %02x wValue %02x%02x wIndex %02x%02x wLength %d length %d TD size %d intr %d type '%s' flags %c:%c:%c", + snprintf(str, size, + "bRequestType %02x bRequest %02x wValue %02x%02x wIndex %02x%02x wLength %d length %d TD size %d intr %d type '%s' flags %c:%c:%c", field0 & 0xff, (field0 & 0xff00) >> 8, (field0 & 0xff000000) >> 24, @@ -2290,7 +2293,8 @@ static inline const char *xhci_decode_trb(u32 field0, u32 field1, u32 field2, field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_DATA: - sprintf(str, "Buffer %08x%08x length %d TD size %d intr %d type '%s' flags %c:%c:%c:%c:%c:%c:%c", + snprintf(str, size, + "Buffer %08x%08x length %d TD size %d intr %d type '%s' flags %c:%c:%c:%c:%c:%c:%c", field1, field0, TRB_LEN(field2), GET_TD_SIZE(field2), GET_INTR_TARGET(field2), xhci_trb_type_string(type), @@ -2303,7 +2307,8 @@ static inline const char *xhci_decode_trb(u32 field0, u32 field1, u32 field2, field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_STATUS: - sprintf(str, "Buffer %08x%08x length %d TD size %d intr %d type '%s' flags %c:%c:%c:%c", + snprintf(str, size, + "Buffer %08x%08x length %d TD size %d intr %d type '%s' flags %c:%c:%c:%c", field1, field0, TRB_LEN(field2), GET_TD_SIZE(field2), GET_INTR_TARGET(field2), xhci_trb_type_string(type), @@ -2316,7 +2321,7 @@ static inline const char *xhci_decode_trb(u32 field0, u32 field1, u32 field2, case TRB_ISOC: case TRB_EVENT_DATA: case TRB_TR_NOOP: - sprintf(str, + snprintf(str, size, "Buffer %08x%08x length %d TD size %d intr %d type '%s' flags %c:%c:%c:%c:%c:%c:%c:%c", field1, field0, TRB_LEN(field2), GET_TD_SIZE(field2), GET_INTR_TARGET(field2), @@ -2333,21 +2338,21 @@ static inline const char *xhci_decode_trb(u32 field0, u32 field1, u32 field2, case TRB_CMD_NOOP: case TRB_ENABLE_SLOT: - sprintf(str, + snprintf(str, size, "%s: flags %c", xhci_trb_type_string(type), field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_DISABLE_SLOT: case TRB_NEG_BANDWIDTH: - sprintf(str, + snprintf(str, size, "%s: slot %d flags %c", xhci_trb_type_string(type), TRB_TO_SLOT_ID(field3), field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_ADDR_DEV: - sprintf(str, + snprintf(str, size, "%s: ctx %08x%08x slot %d flags %c:%c", xhci_trb_type_string(type), field1, field0, @@ -2356,7 +2361,7 @@ static inline const char *xhci_decode_trb(u32 field0, u32 field1, u32 field2, field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_CONFIG_EP: - sprintf(str, + snprintf(str, size, "%s: ctx %08x%08x slot %d flags %c:%c", xhci_trb_type_string(type), field1, field0, @@ -2365,7 +2370,7 @@ static inline const char *xhci_decode_trb(u32 field0, u32 field1, u32 field2, field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_EVAL_CONTEXT: - sprintf(str, + snprintf(str, size, "%s: ctx %08x%08x slot %d flags %c", xhci_trb_type_string(type), field1, field0, @@ -2373,7 +2378,7 @@ static inline const char *xhci_decode_trb(u32 field0, u32 field1, u32 field2, field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_RESET_EP: - sprintf(str, + snprintf(str, size, "%s: ctx %08x%08x slot %d ep %d flags %c:%c", xhci_trb_type_string(type), field1, field0, @@ -2394,7 +2399,7 @@ static inline const char *xhci_decode_trb(u32 field0, u32 field1, u32 field2, field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_SET_DEQ: - sprintf(str, + snprintf(str, size, "%s: deq %08x%08x stream %d slot %d ep %d flags %c", xhci_trb_type_string(type), field1, field0, @@ -2405,14 +2410,14 @@ static inline const char *xhci_decode_trb(u32 field0, u32 field1, u32 field2, field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_RESET_DEV: - sprintf(str, + snprintf(str, size, "%s: slot %d flags %c", xhci_trb_type_string(type), TRB_TO_SLOT_ID(field3), field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_FORCE_EVENT: - sprintf(str, + snprintf(str, size, "%s: event %08x%08x vf intr %d vf id %d flags %c", xhci_trb_type_string(type), field1, field0, @@ -2421,14 +2426,14 @@ static inline const char *xhci_decode_trb(u32 field0, u32 field1, u32 field2, field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_SET_LT: - sprintf(str, + snprintf(str, size, "%s: belt %d flags %c", xhci_trb_type_string(type), TRB_TO_BELT(field3), field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_GET_BW: - sprintf(str, + snprintf(str, size, "%s: ctx %08x%08x slot %d speed %d flags %c", xhci_trb_type_string(type), field1, field0, @@ -2437,7 +2442,7 @@ static inline const char *xhci_decode_trb(u32 field0, u32 field1, u32 field2, field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_FORCE_HEADER: - sprintf(str, + snprintf(str, size, "%s: info %08x%08x%08x pkt type %d roothub port %d flags %c", xhci_trb_type_string(type), field2, field1, field0 & 0xffffffe0, @@ -2446,7 +2451,7 @@ static inline const char *xhci_decode_trb(u32 field0, u32 field1, u32 field2, field3 & TRB_CYCLE ? 'C' : 'c'); break; default: - sprintf(str, + snprintf(str, size, "type '%s' -> raw %08x %08x %08x %08x", xhci_trb_type_string(type), field0, field1, field2, field3); @@ -2571,9 +2576,8 @@ static inline const char *xhci_portsc_link_state_string(u32 portsc) return "Unknown"; } -static inline const char *xhci_decode_portsc(u32 portsc) +static inline const char *xhci_decode_portsc(char *str, u32 portsc) { - static char str[256]; int ret; ret = sprintf(str, "%s %s %s Link:%s PortSpeed:%d ", |