diff options
Diffstat (limited to 'drivers/usb/host/ehci-dbg.c')
| -rw-r--r-- | drivers/usb/host/ehci-dbg.c | 477 |
1 files changed, 254 insertions, 223 deletions
diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c index b7d623f..79d12b2 100644 --- a/drivers/usb/host/ehci-dbg.c +++ b/drivers/usb/host/ehci-dbg.c @@ -11,76 +11,73 @@ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * for more details. * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software Foundation, - * Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* this file is part of ehci-hcd.c */ #ifdef CONFIG_DYNAMIC_DEBUG -/* check the values in the HCSPARAMS register +/* + * check the values in the HCSPARAMS register * (host controller _Structural_ parameters) * see EHCI spec, Table 2-4 for each value */ -static void dbg_hcs_params (struct ehci_hcd *ehci, char *label) +static void dbg_hcs_params(struct ehci_hcd *ehci, char *label) { u32 params = ehci_readl(ehci, &ehci->caps->hcs_params); - ehci_dbg (ehci, + ehci_dbg(ehci, "%s hcs_params 0x%x dbg=%d%s cc=%d pcc=%d%s%s ports=%d\n", label, params, - HCS_DEBUG_PORT (params), - HCS_INDICATOR (params) ? " ind" : "", - HCS_N_CC (params), - HCS_N_PCC (params), - HCS_PORTROUTED (params) ? "" : " ordered", - HCS_PPC (params) ? "" : " !ppc", - HCS_N_PORTS (params) - ); + HCS_DEBUG_PORT(params), + HCS_INDICATOR(params) ? " ind" : "", + HCS_N_CC(params), + HCS_N_PCC(params), + HCS_PORTROUTED(params) ? "" : " ordered", + HCS_PPC(params) ? "" : " !ppc", + HCS_N_PORTS(params)); /* Port routing, per EHCI 0.95 Spec, Section 2.2.5 */ - if (HCS_PORTROUTED (params)) { + if (HCS_PORTROUTED(params)) { int i; - char buf [46], tmp [7], byte; + char buf[46], tmp[7], byte; buf[0] = 0; - for (i = 0; i < HCS_N_PORTS (params); i++) { - // FIXME MIPS won't readb() ... - byte = readb (&ehci->caps->portroute[(i>>1)]); + for (i = 0; i < HCS_N_PORTS(params); i++) { + /* FIXME MIPS won't readb() ... */ + byte = readb(&ehci->caps->portroute[(i >> 1)]); sprintf(tmp, "%d ", - ((i & 0x1) ? ((byte)&0xf) : ((byte>>4)&0xf))); + (i & 0x1) ? byte & 0xf : (byte >> 4) & 0xf); strcat(buf, tmp); } - ehci_dbg (ehci, "%s portroute %s\n", - label, buf); + ehci_dbg(ehci, "%s portroute %s\n", label, buf); } } #else -static inline void dbg_hcs_params (struct ehci_hcd *ehci, char *label) {} +static inline void dbg_hcs_params(struct ehci_hcd *ehci, char *label) {} #endif #ifdef CONFIG_DYNAMIC_DEBUG -/* check the values in the HCCPARAMS register +/* + * check the values in the HCCPARAMS register * (host controller _Capability_ parameters) * see EHCI Spec, Table 2-5 for each value - * */ -static void dbg_hcc_params (struct ehci_hcd *ehci, char *label) + */ +static void dbg_hcc_params(struct ehci_hcd *ehci, char *label) { u32 params = ehci_readl(ehci, &ehci->caps->hcc_params); - if (HCC_ISOC_CACHE (params)) { - ehci_dbg (ehci, + if (HCC_ISOC_CACHE(params)) { + ehci_dbg(ehci, "%s hcc_params %04x caching frame %s%s%s\n", label, params, HCC_PGM_FRAMELISTLEN(params) ? "256/512/1024" : "1024", HCC_CANPARK(params) ? " park" : "", HCC_64BIT_ADDR(params) ? " 64 bit addr" : ""); } else { - ehci_dbg (ehci, + ehci_dbg(ehci, "%s hcc_params %04x thresh %d uframes %s%s%s%s%s%s%s\n", label, params, @@ -97,21 +94,21 @@ static void dbg_hcc_params (struct ehci_hcd *ehci, char *label) } #else -static inline void dbg_hcc_params (struct ehci_hcd *ehci, char *label) {} +static inline void dbg_hcc_params(struct ehci_hcd *ehci, char *label) {} #endif #ifdef CONFIG_DYNAMIC_DEBUG static void __maybe_unused -dbg_qtd (const char *label, struct ehci_hcd *ehci, struct ehci_qtd *qtd) +dbg_qtd(const char *label, struct ehci_hcd *ehci, struct ehci_qtd *qtd) { ehci_dbg(ehci, "%s td %p n%08x %08x t%08x p0=%08x\n", label, qtd, hc32_to_cpup(ehci, &qtd->hw_next), hc32_to_cpup(ehci, &qtd->hw_alt_next), hc32_to_cpup(ehci, &qtd->hw_token), - hc32_to_cpup(ehci, &qtd->hw_buf [0])); - if (qtd->hw_buf [1]) + hc32_to_cpup(ehci, &qtd->hw_buf[0])); + if (qtd->hw_buf[1]) ehci_dbg(ehci, " p1=%08x p2=%08x p3=%08x p4=%08x\n", hc32_to_cpup(ehci, &qtd->hw_buf[1]), hc32_to_cpup(ehci, &qtd->hw_buf[2]), @@ -120,22 +117,22 @@ dbg_qtd (const char *label, struct ehci_hcd *ehci, struct ehci_qtd *qtd) } static void __maybe_unused -dbg_qh (const char *label, struct ehci_hcd *ehci, struct ehci_qh *qh) +dbg_qh(const char *label, struct ehci_hcd *ehci, struct ehci_qh *qh) { struct ehci_qh_hw *hw = qh->hw; - ehci_dbg (ehci, "%s qh %p n%08x info %x %x qtd %x\n", label, + ehci_dbg(ehci, "%s qh %p n%08x info %x %x qtd %x\n", label, qh, hw->hw_next, hw->hw_info1, hw->hw_info2, hw->hw_current); dbg_qtd("overlay", ehci, (struct ehci_qtd *) &hw->hw_qtd_next); } static void __maybe_unused -dbg_itd (const char *label, struct ehci_hcd *ehci, struct ehci_itd *itd) +dbg_itd(const char *label, struct ehci_hcd *ehci, struct ehci_itd *itd) { - ehci_dbg (ehci, "%s [%d] itd %p, next %08x, urb %p\n", + ehci_dbg(ehci, "%s [%d] itd %p, next %08x, urb %p\n", label, itd->frame, itd, hc32_to_cpu(ehci, itd->hw_next), itd->urb); - ehci_dbg (ehci, + ehci_dbg(ehci, " trans: %08x %08x %08x %08x %08x %08x %08x %08x\n", hc32_to_cpu(ehci, itd->hw_transaction[0]), hc32_to_cpu(ehci, itd->hw_transaction[1]), @@ -145,7 +142,7 @@ dbg_itd (const char *label, struct ehci_hcd *ehci, struct ehci_itd *itd) hc32_to_cpu(ehci, itd->hw_transaction[5]), hc32_to_cpu(ehci, itd->hw_transaction[6]), hc32_to_cpu(ehci, itd->hw_transaction[7])); - ehci_dbg (ehci, + ehci_dbg(ehci, " buf: %08x %08x %08x %08x %08x %08x %08x\n", hc32_to_cpu(ehci, itd->hw_bufp[0]), hc32_to_cpu(ehci, itd->hw_bufp[1]), @@ -154,19 +151,19 @@ dbg_itd (const char *label, struct ehci_hcd *ehci, struct ehci_itd *itd) hc32_to_cpu(ehci, itd->hw_bufp[4]), hc32_to_cpu(ehci, itd->hw_bufp[5]), hc32_to_cpu(ehci, itd->hw_bufp[6])); - ehci_dbg (ehci, " index: %d %d %d %d %d %d %d %d\n", + ehci_dbg(ehci, " index: %d %d %d %d %d %d %d %d\n", itd->index[0], itd->index[1], itd->index[2], itd->index[3], itd->index[4], itd->index[5], itd->index[6], itd->index[7]); } static void __maybe_unused -dbg_sitd (const char *label, struct ehci_hcd *ehci, struct ehci_sitd *sitd) +dbg_sitd(const char *label, struct ehci_hcd *ehci, struct ehci_sitd *sitd) { - ehci_dbg (ehci, "%s [%d] sitd %p, next %08x, urb %p\n", + ehci_dbg(ehci, "%s [%d] sitd %p, next %08x, urb %p\n", label, sitd->frame, sitd, hc32_to_cpu(ehci, sitd->hw_next), sitd->urb); - ehci_dbg (ehci, + ehci_dbg(ehci, " addr %08x sched %04x result %08x buf %08x %08x\n", hc32_to_cpu(ehci, sitd->hw_fullspeed_ep), hc32_to_cpu(ehci, sitd->hw_uframe), @@ -176,11 +173,11 @@ dbg_sitd (const char *label, struct ehci_hcd *ehci, struct ehci_sitd *sitd) } static int __maybe_unused -dbg_status_buf (char *buf, unsigned len, const char *label, u32 status) +dbg_status_buf(char *buf, unsigned len, const char *label, u32 status) { - return scnprintf (buf, len, + return scnprintf(buf, len, "%s%sstatus %04x%s%s%s%s%s%s%s%s%s%s%s", - label, label [0] ? " " : "", status, + label, label[0] ? " " : "", status, (status & STS_PPCE_MASK) ? " PPCE" : "", (status & STS_ASS) ? " Async" : "", (status & STS_PSS) ? " Periodic" : "", @@ -191,79 +188,83 @@ dbg_status_buf (char *buf, unsigned len, const char *label, u32 status) (status & STS_FLR) ? " FLR" : "", (status & STS_PCD) ? " PCD" : "", (status & STS_ERR) ? " ERR" : "", - (status & STS_INT) ? " INT" : "" - ); + (status & STS_INT) ? " INT" : ""); } static int __maybe_unused -dbg_intr_buf (char *buf, unsigned len, const char *label, u32 enable) +dbg_intr_buf(char *buf, unsigned len, const char *label, u32 enable) { - return scnprintf (buf, len, + return scnprintf(buf, len, "%s%sintrenable %02x%s%s%s%s%s%s%s", - label, label [0] ? " " : "", enable, + label, label[0] ? " " : "", enable, (enable & STS_PPCE_MASK) ? " PPCE" : "", (enable & STS_IAA) ? " IAA" : "", (enable & STS_FATAL) ? " FATAL" : "", (enable & STS_FLR) ? " FLR" : "", (enable & STS_PCD) ? " PCD" : "", (enable & STS_ERR) ? " ERR" : "", - (enable & STS_INT) ? " INT" : "" - ); + (enable & STS_INT) ? " INT" : ""); } -static const char *const fls_strings [] = - { "1024", "512", "256", "??" }; +static const char *const fls_strings[] = { "1024", "512", "256", "??" }; static int -dbg_command_buf (char *buf, unsigned len, const char *label, u32 command) +dbg_command_buf(char *buf, unsigned len, const char *label, u32 command) { - return scnprintf (buf, len, + return scnprintf(buf, len, "%s%scommand %07x %s%s%s%s%s%s=%d ithresh=%d%s%s%s%s " "period=%s%s %s", - label, label [0] ? " " : "", command, + label, label[0] ? " " : "", command, (command & CMD_HIRD) ? " HIRD" : "", (command & CMD_PPCEE) ? " PPCEE" : "", (command & CMD_FSP) ? " FSP" : "", (command & CMD_ASPE) ? " ASPE" : "", (command & CMD_PSPE) ? " PSPE" : "", (command & CMD_PARK) ? " park" : "(park)", - CMD_PARK_CNT (command), + CMD_PARK_CNT(command), (command >> 16) & 0x3f, (command & CMD_LRESET) ? " LReset" : "", (command & CMD_IAAD) ? " IAAD" : "", (command & CMD_ASE) ? " Async" : "", (command & CMD_PSE) ? " Periodic" : "", - fls_strings [(command >> 2) & 0x3], + fls_strings[(command >> 2) & 0x3], (command & CMD_RESET) ? " Reset" : "", - (command & CMD_RUN) ? "RUN" : "HALT" - ); + (command & CMD_RUN) ? "RUN" : "HALT"); } static int -dbg_port_buf (char *buf, unsigned len, const char *label, int port, u32 status) +dbg_port_buf(char *buf, unsigned len, const char *label, int port, u32 status) { char *sig; /* signaling state */ switch (status & (3 << 10)) { - case 0 << 10: sig = "se0"; break; - case 1 << 10: sig = "k"; break; /* low speed */ - case 2 << 10: sig = "j"; break; - default: sig = "?"; break; + case 0 << 10: + sig = "se0"; + break; + case 1 << 10: /* low speed */ + sig = "k"; + break; + case 2 << 10: + sig = "j"; + break; + default: + sig = "?"; + break; } - return scnprintf (buf, len, + return scnprintf(buf, len, "%s%sport:%d status %06x %d %s%s%s%s%s%s " "sig=%s%s%s%s%s%s%s%s%s%s%s", - label, label [0] ? " " : "", port, status, - status>>25,/*device address */ - (status & PORT_SSTS)>>23 == PORTSC_SUSPEND_STS_ACK ? + label, label[0] ? " " : "", port, status, + status >> 25, /*device address */ + (status & PORT_SSTS) >> 23 == PORTSC_SUSPEND_STS_ACK ? " ACK" : "", - (status & PORT_SSTS)>>23 == PORTSC_SUSPEND_STS_NYET ? + (status & PORT_SSTS) >> 23 == PORTSC_SUSPEND_STS_NYET ? " NYET" : "", - (status & PORT_SSTS)>>23 == PORTSC_SUSPEND_STS_STALL ? + (status & PORT_SSTS) >> 23 == PORTSC_SUSPEND_STS_STALL ? " STALL" : "", - (status & PORT_SSTS)>>23 == PORTSC_SUSPEND_STS_ERR ? + (status & PORT_SSTS) >> 23 == PORTSC_SUSPEND_STS_ERR ? " ERR" : "", (status & PORT_POWER) ? " POWER" : "", (status & PORT_OWNER) ? " OWNER" : "", @@ -282,52 +283,68 @@ dbg_port_buf (char *buf, unsigned len, const char *label, int port, u32 status) #else static inline void __maybe_unused -dbg_qh (char *label, struct ehci_hcd *ehci, struct ehci_qh *qh) +dbg_qh(char *label, struct ehci_hcd *ehci, struct ehci_qh *qh) {} static inline int __maybe_unused -dbg_status_buf (char *buf, unsigned len, const char *label, u32 status) -{ return 0; } +dbg_status_buf(char *buf, unsigned len, const char *label, u32 status) +{ + return 0; +} static inline int __maybe_unused -dbg_command_buf (char *buf, unsigned len, const char *label, u32 command) -{ return 0; } +dbg_command_buf(char *buf, unsigned len, const char *label, u32 command) +{ + return 0; +} static inline int __maybe_unused -dbg_intr_buf (char *buf, unsigned len, const char *label, u32 enable) -{ return 0; } +dbg_intr_buf(char *buf, unsigned len, const char *label, u32 enable) +{ + return 0; +} static inline int __maybe_unused -dbg_port_buf (char *buf, unsigned len, const char *label, int port, u32 status) -{ return 0; } +dbg_port_buf(char *buf, unsigned len, const char *label, int port, u32 status) +{ + return 0; +} #endif /* CONFIG_DYNAMIC_DEBUG */ -/* functions have the "wrong" filename when they're output... */ -#define dbg_status(ehci, label, status) { \ - char _buf [80]; \ - dbg_status_buf (_buf, sizeof _buf, label, status); \ - ehci_dbg (ehci, "%s\n", _buf); \ +static inline void +dbg_status(struct ehci_hcd *ehci, const char *label, u32 status) +{ + char buf[80]; + + dbg_status_buf(buf, sizeof(buf), label, status); + ehci_dbg(ehci, "%s\n", buf); } -#define dbg_cmd(ehci, label, command) { \ - char _buf [80]; \ - dbg_command_buf (_buf, sizeof _buf, label, command); \ - ehci_dbg (ehci, "%s\n", _buf); \ +static inline void +dbg_cmd(struct ehci_hcd *ehci, const char *label, u32 command) +{ + char buf[80]; + + dbg_command_buf(buf, sizeof(buf), label, command); + ehci_dbg(ehci, "%s\n", buf); } -#define dbg_port(ehci, label, port, status) { \ - char _buf [80]; \ - dbg_port_buf (_buf, sizeof _buf, label, port, status); \ - ehci_dbg (ehci, "%s\n", _buf); \ +static inline void +dbg_port(struct ehci_hcd *ehci, const char *label, int port, u32 status) +{ + char buf[80]; + + dbg_port_buf(buf, sizeof(buf), label, port, status); + ehci_dbg(ehci, "%s\n", buf); } /*-------------------------------------------------------------------------*/ -#ifdef STUB_DEBUG_FILES +#ifndef CONFIG_DYNAMIC_DEBUG -static inline void create_debug_files (struct ehci_hcd *bus) { } -static inline void remove_debug_files (struct ehci_hcd *bus) { } +static inline void create_debug_files(struct ehci_hcd *bus) { } +static inline void remove_debug_files(struct ehci_hcd *bus) { } #else @@ -348,6 +365,7 @@ static const struct file_operations debug_async_fops = { .release = debug_close, .llseek = default_llseek, }; + static const struct file_operations debug_bandwidth_fops = { .owner = THIS_MODULE, .open = debug_bandwidth_open, @@ -355,6 +373,7 @@ static const struct file_operations debug_bandwidth_fops = { .release = debug_close, .llseek = default_llseek, }; + static const struct file_operations debug_periodic_fops = { .owner = THIS_MODULE, .open = debug_periodic_open, @@ -362,6 +381,7 @@ static const struct file_operations debug_periodic_fops = { .release = debug_close, .llseek = default_llseek, }; + static const struct file_operations debug_registers_fops = { .owner = THIS_MODULE, .open = debug_registers_open, @@ -381,13 +401,19 @@ struct debug_buffer { size_t alloc_size; }; -#define speed_char(info1) ({ char tmp; \ - switch (info1 & (3 << 12)) { \ - case QH_FULL_SPEED: tmp = 'f'; break; \ - case QH_LOW_SPEED: tmp = 'l'; break; \ - case QH_HIGH_SPEED: tmp = 'h'; break; \ - default: tmp = '?'; break; \ - } tmp; }) +static inline char speed_char(u32 info1) +{ + switch (info1 & (3 << 12)) { + case QH_FULL_SPEED: + return 'f'; + case QH_LOW_SPEED: + return 'l'; + case QH_HIGH_SPEED: + return 'h'; + default: + return '?'; + } +} static inline char token_mark(struct ehci_hcd *ehci, __hc32 token) { @@ -397,18 +423,14 @@ static inline char token_mark(struct ehci_hcd *ehci, __hc32 token) return '*'; if (v & QTD_STS_HALT) return '-'; - if (!IS_SHORT_READ (v)) + if (!IS_SHORT_READ(v)) return ' '; /* tries to advance through hw_alt_next */ return '/'; } -static void qh_lines ( - struct ehci_hcd *ehci, - struct ehci_qh *qh, - char **nextp, - unsigned *sizep -) +static void qh_lines(struct ehci_hcd *ehci, struct ehci_qh *qh, + char **nextp, unsigned *sizep) { u32 scratch; u32 hw_curr; @@ -435,7 +457,7 @@ static void qh_lines ( } scratch = hc32_to_cpup(ehci, &hw->hw_info1); hw_curr = (mark == '*') ? hc32_to_cpup(ehci, &hw->hw_current) : 0; - temp = scnprintf (next, size, + temp = scnprintf(next, size, "qh/%p dev%d %cs ep%d %08x %08x (%08x%c %s nak%d)" " [cur %08x next %08x buf[0] %08x]", qh, scratch & 0x007f, @@ -453,46 +475,52 @@ static void qh_lines ( next += temp; /* hc may be modifying the list as we read it ... */ - list_for_each (entry, &qh->qtd_list) { - td = list_entry (entry, struct ehci_qtd, qtd_list); + list_for_each(entry, &qh->qtd_list) { + char *type; + + td = list_entry(entry, struct ehci_qtd, qtd_list); scratch = hc32_to_cpup(ehci, &td->hw_token); mark = ' '; - if (hw_curr == td->qtd_dma) + if (hw_curr == td->qtd_dma) { mark = '*'; - else if (hw->hw_qtd_next == cpu_to_hc32(ehci, td->qtd_dma)) + } else if (hw->hw_qtd_next == cpu_to_hc32(ehci, td->qtd_dma)) { mark = '+'; - else if (QTD_LENGTH (scratch)) { + } else if (QTD_LENGTH(scratch)) { if (td->hw_alt_next == ehci->async->hw->hw_alt_next) mark = '#'; else if (td->hw_alt_next != list_end) mark = '/'; } - temp = snprintf (next, size, + switch ((scratch >> 8) & 0x03) { + case 0: + type = "out"; + break; + case 1: + type = "in"; + break; + case 2: + type = "setup"; + break; + default: + type = "?"; + break; + } + temp = scnprintf(next, size, "\n\t%p%c%s len=%d %08x urb %p" " [td %08x buf[0] %08x]", - td, mark, ({ char *tmp; - switch ((scratch>>8)&0x03) { - case 0: tmp = "out"; break; - case 1: tmp = "in"; break; - case 2: tmp = "setup"; break; - default: tmp = "?"; break; - } tmp;}), + td, mark, type, (scratch >> 16) & 0x7fff, scratch, td->urb, (u32) td->qtd_dma, hc32_to_cpup(ehci, &td->hw_buf[0])); - if (size < temp) - temp = size; size -= temp; next += temp; if (temp == size) goto done; } - temp = snprintf (next, size, "\n"); - if (size < temp) - temp = size; + temp = scnprintf(next, size, "\n"); size -= temp; next += temp; @@ -511,19 +539,20 @@ static ssize_t fill_async_buffer(struct debug_buffer *buf) struct ehci_qh *qh; hcd = bus_to_hcd(buf->bus); - ehci = hcd_to_ehci (hcd); + ehci = hcd_to_ehci(hcd); next = buf->output_buf; size = buf->alloc_size; *next = 0; - /* dumps a snapshot of the async schedule. + /* + * dumps a snapshot of the async schedule. * usually empty except for long-term bulk reads, or head. * one QH per line, and TDs we know about */ - spin_lock_irqsave (&ehci->lock, flags); + spin_lock_irqsave(&ehci->lock, flags); for (qh = ehci->async->qh_next.qh; size > 0 && qh; qh = qh->qh_next.qh) - qh_lines (ehci, qh, &next, &size); + qh_lines(ehci, qh, &next, &size); if (!list_empty(&ehci->async_unlink) && size > 0) { temp = scnprintf(next, size, "\nunlink =\n"); size -= temp; @@ -535,7 +564,7 @@ static ssize_t fill_async_buffer(struct debug_buffer *buf) qh_lines(ehci, qh, &next, &size); } } - spin_unlock_irqrestore (&ehci->lock, flags); + spin_unlock_irqrestore(&ehci->lock, flags); return strlen(buf->output_buf); } @@ -623,6 +652,33 @@ static ssize_t fill_bandwidth_buffer(struct debug_buffer *buf) return next - buf->output_buf; } +static unsigned output_buf_tds_dir(char *buf, struct ehci_hcd *ehci, + struct ehci_qh_hw *hw, struct ehci_qh *qh, unsigned size) +{ + u32 scratch = hc32_to_cpup(ehci, &hw->hw_info1); + struct ehci_qtd *qtd; + char *type = ""; + unsigned temp = 0; + + /* count tds, get ep direction */ + list_for_each_entry(qtd, &qh->qtd_list, qtd_list) { + temp++; + switch ((hc32_to_cpu(ehci, qtd->hw_token) >> 8) & 0x03) { + case 0: + type = "out"; + continue; + case 1: + type = "in"; + continue; + } + } + + return scnprintf(buf, size, " (%c%d ep%d%s [%d/%d] q%d p%d)", + speed_char(scratch), scratch & 0x007f, + (scratch >> 8) & 0x000f, type, qh->ps.usecs, + qh->ps.c_usecs, temp, 0x7ff & (scratch >> 16)); +} + #define DBG_SCHED_LIMIT 64 static ssize_t fill_periodic_buffer(struct debug_buffer *buf) { @@ -635,31 +691,32 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) unsigned i; __hc32 tag; - seen = kmalloc(DBG_SCHED_LIMIT * sizeof *seen, GFP_ATOMIC); + seen = kmalloc_array(DBG_SCHED_LIMIT, sizeof(*seen), GFP_ATOMIC); if (!seen) return 0; seen_count = 0; hcd = bus_to_hcd(buf->bus); - ehci = hcd_to_ehci (hcd); + ehci = hcd_to_ehci(hcd); next = buf->output_buf; size = buf->alloc_size; - temp = scnprintf (next, size, "size = %d\n", ehci->periodic_size); + temp = scnprintf(next, size, "size = %d\n", ehci->periodic_size); size -= temp; next += temp; - /* dump a snapshot of the periodic schedule. + /* + * dump a snapshot of the periodic schedule. * iso changes, interrupt usually doesn't. */ - spin_lock_irqsave (&ehci->lock, flags); + spin_lock_irqsave(&ehci->lock, flags); for (i = 0; i < ehci->periodic_size; i++) { - p = ehci->pshadow [i]; - if (likely (!p.ptr)) + p = ehci->pshadow[i]; + if (likely(!p.ptr)) continue; - tag = Q_NEXT_TYPE(ehci, ehci->periodic [i]); + tag = Q_NEXT_TYPE(ehci, ehci->periodic[i]); - temp = scnprintf (next, size, "%4d: ", i); + temp = scnprintf(next, size, "%4d: ", i); size -= temp; next += temp; @@ -669,7 +726,7 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) switch (hc32_to_cpu(ehci, tag)) { case Q_TYPE_QH: hw = p.qh->hw; - temp = scnprintf (next, size, " qh%d-%04x/%p", + temp = scnprintf(next, size, " qh%d-%04x/%p", p.qh->ps.period, hc32_to_cpup(ehci, &hw->hw_info2) @@ -680,10 +737,10 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) next += temp; /* don't repeat what follows this qh */ for (temp = 0; temp < seen_count; temp++) { - if (seen [temp].ptr != p.ptr) + if (seen[temp].ptr != p.ptr) continue; if (p.qh->qh_next.ptr) { - temp = scnprintf (next, size, + temp = scnprintf(next, size, " ..."); size -= temp; next += temp; @@ -692,58 +749,32 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) } /* show more info the first time around */ if (temp == seen_count) { - u32 scratch = hc32_to_cpup(ehci, - &hw->hw_info1); - struct ehci_qtd *qtd; - char *type = ""; - - /* count tds, get ep direction */ - temp = 0; - list_for_each_entry (qtd, - &p.qh->qtd_list, - qtd_list) { - temp++; - switch (0x03 & (hc32_to_cpu( - ehci, - qtd->hw_token) >> 8)) { - case 0: type = "out"; continue; - case 1: type = "in"; continue; - } - } - - temp = scnprintf (next, size, - " (%c%d ep%d%s " - "[%d/%d] q%d p%d)", - speed_char (scratch), - scratch & 0x007f, - (scratch >> 8) & 0x000f, type, - p.qh->ps.usecs, - p.qh->ps.c_usecs, - temp, - 0x7ff & (scratch >> 16)); + temp = output_buf_tds_dir(next, ehci, + hw, p.qh, size); if (seen_count < DBG_SCHED_LIMIT) - seen [seen_count++].qh = p.qh; - } else + seen[seen_count++].qh = p.qh; + } else { temp = 0; + } tag = Q_NEXT_TYPE(ehci, hw->hw_next); p = p.qh->qh_next; break; case Q_TYPE_FSTN: - temp = scnprintf (next, size, + temp = scnprintf(next, size, " fstn-%8x/%p", p.fstn->hw_prev, p.fstn); tag = Q_NEXT_TYPE(ehci, p.fstn->hw_next); p = p.fstn->fstn_next; break; case Q_TYPE_ITD: - temp = scnprintf (next, size, + temp = scnprintf(next, size, " itd/%p", p.itd); tag = Q_NEXT_TYPE(ehci, p.itd->hw_next); p = p.itd->itd_next; break; case Q_TYPE_SITD: - temp = scnprintf (next, size, + temp = scnprintf(next, size, " sitd%d-%04x/%p", p.sitd->stream->ps.period, hc32_to_cpup(ehci, &p.sitd->hw_uframe) @@ -757,12 +788,12 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) next += temp; } while (p.ptr); - temp = scnprintf (next, size, "\n"); + temp = scnprintf(next, size, "\n"); size -= temp; next += temp; } - spin_unlock_irqrestore (&ehci->lock, flags); - kfree (seen); + spin_unlock_irqrestore(&ehci->lock, flags); + kfree(seen); return buf->alloc_size - size; } @@ -789,19 +820,19 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) struct ehci_hcd *ehci; unsigned long flags; unsigned temp, size, i; - char *next, scratch [80]; - static char fmt [] = "%*s\n"; - static char label [] = ""; + char *next, scratch[80]; + static char fmt[] = "%*s\n"; + static char label[] = ""; hcd = bus_to_hcd(buf->bus); - ehci = hcd_to_ehci (hcd); + ehci = hcd_to_ehci(hcd); next = buf->output_buf; size = buf->alloc_size; - spin_lock_irqsave (&ehci->lock, flags); + spin_lock_irqsave(&ehci->lock, flags); if (!HCD_HW_ACCESSIBLE(hcd)) { - size = scnprintf (next, size, + size = scnprintf(next, size, "bus %s, device %s\n" "%s\n" "SUSPENDED (no register access)\n", @@ -813,7 +844,7 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) /* Capability Registers */ i = HC_VERSION(ehci, ehci_readl(ehci, &ehci->caps->hc_capbase)); - temp = scnprintf (next, size, + temp = scnprintf(next, size, "bus %s, device %s\n" "%s\n" "EHCI %x.%02x, rh state %s\n", @@ -829,16 +860,16 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) if (dev_is_pci(hcd->self.controller)) { struct pci_dev *pdev; u32 offset, cap, cap2; - unsigned count = 256/4; + unsigned count = 256 / 4; pdev = to_pci_dev(ehci_to_hcd(ehci)->self.controller); offset = HCC_EXT_CAPS(ehci_readl(ehci, &ehci->caps->hcc_params)); while (offset && count--) { - pci_read_config_dword (pdev, offset, &cap); + pci_read_config_dword(pdev, offset, &cap); switch (cap & 0xff) { case 1: - temp = scnprintf (next, size, + temp = scnprintf(next, size, "ownership %08x%s%s\n", cap, (cap & (1 << 24)) ? " linux" : "", (cap & (1 << 16)) ? " firmware" : ""); @@ -846,8 +877,8 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) next += temp; offset += 4; - pci_read_config_dword (pdev, offset, &cap2); - temp = scnprintf (next, size, + pci_read_config_dword(pdev, offset, &cap2); + temp = scnprintf(next, size, "SMI sts/enable 0x%08x\n", cap2); size -= temp; next += temp; @@ -863,50 +894,50 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) } #endif - // FIXME interpret both types of params + /* FIXME interpret both types of params */ i = ehci_readl(ehci, &ehci->caps->hcs_params); - temp = scnprintf (next, size, "structural params 0x%08x\n", i); + temp = scnprintf(next, size, "structural params 0x%08x\n", i); size -= temp; next += temp; i = ehci_readl(ehci, &ehci->caps->hcc_params); - temp = scnprintf (next, size, "capability params 0x%08x\n", i); + temp = scnprintf(next, size, "capability params 0x%08x\n", i); size -= temp; next += temp; /* Operational Registers */ - temp = dbg_status_buf (scratch, sizeof scratch, label, + temp = dbg_status_buf(scratch, sizeof(scratch), label, ehci_readl(ehci, &ehci->regs->status)); - temp = scnprintf (next, size, fmt, temp, scratch); + temp = scnprintf(next, size, fmt, temp, scratch); size -= temp; next += temp; - temp = dbg_command_buf (scratch, sizeof scratch, label, + temp = dbg_command_buf(scratch, sizeof(scratch), label, ehci_readl(ehci, &ehci->regs->command)); - temp = scnprintf (next, size, fmt, temp, scratch); + temp = scnprintf(next, size, fmt, temp, scratch); size -= temp; next += temp; - temp = dbg_intr_buf (scratch, sizeof scratch, label, + temp = dbg_intr_buf(scratch, sizeof(scratch), label, ehci_readl(ehci, &ehci->regs->intr_enable)); - temp = scnprintf (next, size, fmt, temp, scratch); + temp = scnprintf(next, size, fmt, temp, scratch); size -= temp; next += temp; - temp = scnprintf (next, size, "uframe %04x\n", + temp = scnprintf(next, size, "uframe %04x\n", ehci_read_frame_index(ehci)); size -= temp; next += temp; - for (i = 1; i <= HCS_N_PORTS (ehci->hcs_params); i++) { - temp = dbg_port_buf (scratch, sizeof scratch, label, i, + for (i = 1; i <= HCS_N_PORTS(ehci->hcs_params); i++) { + temp = dbg_port_buf(scratch, sizeof(scratch), label, i, ehci_readl(ehci, &ehci->regs->port_status[i - 1])); - temp = scnprintf (next, size, fmt, temp, scratch); + temp = scnprintf(next, size, fmt, temp, scratch); size -= temp; next += temp; if (i == HCS_DEBUG_PORT(ehci->hcs_params) && ehci->debug) { - temp = scnprintf (next, size, + temp = scnprintf(next, size, " debug control %08x\n", ehci_readl(ehci, &ehci->debug->control)); @@ -924,31 +955,31 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) } #ifdef EHCI_STATS - temp = scnprintf (next, size, + temp = scnprintf(next, size, "irq normal %ld err %ld iaa %ld (lost %ld)\n", ehci->stats.normal, ehci->stats.error, ehci->stats.iaa, ehci->stats.lost_iaa); size -= temp; next += temp; - temp = scnprintf (next, size, "complete %ld unlink %ld\n", + temp = scnprintf(next, size, "complete %ld unlink %ld\n", ehci->stats.complete, ehci->stats.unlink); size -= temp; next += temp; #endif done: - spin_unlock_irqrestore (&ehci->lock, flags); + spin_unlock_irqrestore(&ehci->lock, flags); return buf->alloc_size - size; } static struct debug_buffer *alloc_buffer(struct usb_bus *bus, - ssize_t (*fill_func)(struct debug_buffer *)) + ssize_t (*fill_func)(struct debug_buffer *)) { struct debug_buffer *buf; - buf = kzalloc(sizeof(struct debug_buffer), GFP_KERNEL); + buf = kzalloc(sizeof(*buf), GFP_KERNEL); if (buf) { buf->bus = bus; @@ -984,7 +1015,7 @@ out: } static ssize_t debug_output(struct file *file, char __user *user_buf, - size_t len, loff_t *offset) + size_t len, loff_t *offset) { struct debug_buffer *buf = file->private_data; int ret = 0; @@ -1004,7 +1035,6 @@ static ssize_t debug_output(struct file *file, char __user *user_buf, out: return ret; - } static int debug_close(struct inode *inode, struct file *file) @@ -1037,11 +1067,12 @@ static int debug_bandwidth_open(struct inode *inode, struct file *file) static int debug_periodic_open(struct inode *inode, struct file *file) { struct debug_buffer *buf; + buf = alloc_buffer(inode->i_private, fill_periodic_buffer); if (!buf) return -ENOMEM; - buf->alloc_size = (sizeof(void *) == 4 ? 6 : 8)*PAGE_SIZE; + buf->alloc_size = (sizeof(void *) == 4 ? 6 : 8) * PAGE_SIZE; file->private_data = buf; return 0; } @@ -1054,7 +1085,7 @@ static int debug_registers_open(struct inode *inode, struct file *file) return file->private_data ? 0 : -ENOMEM; } -static inline void create_debug_files (struct ehci_hcd *ehci) +static inline void create_debug_files(struct ehci_hcd *ehci) { struct usb_bus *bus = &ehci_to_hcd(ehci)->self; @@ -1084,9 +1115,9 @@ file_error: debugfs_remove_recursive(ehci->debug_dir); } -static inline void remove_debug_files (struct ehci_hcd *ehci) +static inline void remove_debug_files(struct ehci_hcd *ehci) { debugfs_remove_recursive(ehci->debug_dir); } -#endif /* STUB_DEBUG_FILES */ +#endif /* CONFIG_DYNAMIC_DEBUG */ |
