From 2fac9717a05fc4b4824422d2c439c1260807c110 Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Fri, 25 Sep 2009 14:24:21 -0700 Subject: iwlwifi: fix debugfs buffer handling We keep track of where to write into a buffer by keeping a count of how much has been written so far. When writing to the buffer we thus take the buffer pointer and adding the count of what has been written so far. Keeping track of what has been written so far is done by incrementing this number every time something is written to the buffer with how much has been written at that time. Currently this number is incremented incorrectly when using the "hex_dump_to_buffer" call to add data to the buffer. Fix this by only adding what has been added to the buffer in that call instead of what has been added since beginning of buffer. Issue was discovered and discussed during testing of https://bugzilla.redhat.com/show_bug.cgi?id=464598 . When a user views any of these files they will see something like: [ 179.355202] ------------[ cut here ]------------ [ 179.355209] WARNING: at ../lib/vsprintf.c:989 vsnprintf+0x5ec/0x5f0() [ 179.355212] Hardware name: VGN-Z540N [ 179.355213] Modules linked in: i915 drm i2c_algo_bit i2c_core ipv6 acpi_cpufreq cpufreq_userspace cpufreq_powersave cpufreq_ondemand cpufreq_conservative cpufreq_stats freq_table container sbs sbshc arc4 ecb iwlagn iwlcore joydev led_class mac80211 af_packet pcmcia psmouse sony_laptop cfg80211 iTCO_wdt iTCO_vendor_support pcspkr serio_raw rfkill intel_agp video output tpm_infineon tpm tpm_bios button battery yenta_socket rsrc_nonstatic pcmcia_core processor ac evdev ext3 jbd mbcache sr_mod sg cdrom sd_mod ahci libata scsi_mod ehci_hcd uhci_hcd usbcore thermal fan thermal_sys [ 179.355262] Pid: 5449, comm: cat Not tainted 2.6.31-wl-54419-ge881071 #62 [ 179.355264] Call Trace: [ 179.355267] [] ? vsnprintf+0x5ec/0x5f0 [ 179.355271] [] warn_slowpath_common+0x78/0xd0 [ 179.355275] [] warn_slowpath_null+0xf/0x20 [ 179.355277] [] vsnprintf+0x5ec/0x5f0 [ 179.355280] [] ? scnprintf+0x5d/0x80 [ 179.355283] [] scnprintf+0x5d/0x80 [ 179.355286] [] ? hex_dump_to_buffer+0x189/0x340 [ 179.355290] [] ? __kmalloc+0x207/0x260 [ 179.355303] [] iwl_dbgfs_nvm_read+0xe8/0x220 [iwlcore] [ 179.355306] [] ? __up_read+0x92/0xb0 [ 179.355310] [] vfs_read+0xc8/0x1a0 [ 179.355313] [] sys_read+0x50/0x90 [ 179.355316] [] system_call_fastpath+0x16/0x1b [ 179.355319] ---[ end trace 2383d0d5e0752ca0 ]--- Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-debugfs.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c index fb844859a443..8c374bf043d0 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c +++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c @@ -410,7 +410,7 @@ static ssize_t iwl_dbgfs_nvm_read(struct file *file, pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs); hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos, buf_size - pos, 0); - pos += strlen(buf); + pos += strlen(buf + pos); if (buf_size - pos > 0) buf[pos++] = '\n'; } @@ -909,7 +909,7 @@ static ssize_t iwl_dbgfs_traffic_log_read(struct file *file, "0x%.4x ", ofs); hex_dump_to_buffer(ptr + ofs, 16, 16, 2, buf + pos, bufsz - pos, 0); - pos += strlen(buf); + pos += strlen(buf + pos); if (bufsz - pos > 0) buf[pos++] = '\n'; } @@ -932,7 +932,7 @@ static ssize_t iwl_dbgfs_traffic_log_read(struct file *file, "0x%.4x ", ofs); hex_dump_to_buffer(ptr + ofs, 16, 16, 2, buf + pos, bufsz - pos, 0); - pos += strlen(buf); + pos += strlen(buf + pos); if (bufsz - pos > 0) buf[pos++] = '\n'; } -- cgit v1.2.3-58-ga151 From 2814298639619b0aa994fe1aee55438f1e26a2a8 Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Fri, 25 Sep 2009 14:24:22 -0700 Subject: iwlwifi: fix memory leak in command queue handling Also free the array of command pointers and meta data of each command buffer when command queue is freed. Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-tx.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c index a7422e52d883..c18907544701 100644 --- a/drivers/net/wireless/iwlwifi/iwl-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-tx.c @@ -197,6 +197,12 @@ void iwl_cmd_queue_free(struct iwl_priv *priv) pci_free_consistent(dev, priv->hw_params.tfd_size * txq->q.n_bd, txq->tfds, txq->q.dma_addr); + /* deallocate arrays */ + kfree(txq->cmd); + kfree(txq->meta); + txq->cmd = NULL; + txq->meta = NULL; + /* 0-fill queue descriptor structure */ memset(txq, 0, sizeof(*txq)); } -- cgit v1.2.3-58-ga151 From b7a794048ff30d53764c1e41ccb2bff7f7bec2a8 Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Fri, 25 Sep 2009 14:24:23 -0700 Subject: iwlwifi: fix 3945 ucode info retrieval after failure When hardware or uCode problem occurs driver captures significant information from device to enable debugging. The format of this information is different between 3945 and 4965 and later devices, yet currently the 3945 uses the 4965 and later format. Fix this by adding a new library call that is initialized to the correct formatting routine based on device. This moves the iwlagn event and error log handling back to iwl-agn.c to make it part of iwlagn module. Also remove the 3945 sysfs file that triggers dump of event log - there is already a debugfs file that can do it for all drivers. Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-1000.c | 2 + drivers/net/wireless/iwlwifi/iwl-3945.c | 2 + drivers/net/wireless/iwlwifi/iwl-3945.h | 2 + drivers/net/wireless/iwlwifi/iwl-4965.c | 2 + drivers/net/wireless/iwlwifi/iwl-5000.c | 4 + drivers/net/wireless/iwlwifi/iwl-6000.c | 2 + drivers/net/wireless/iwlwifi/iwl-agn.c | 185 +++++++++++++++++++++++++++ drivers/net/wireless/iwlwifi/iwl-core.c | 187 +--------------------------- drivers/net/wireless/iwlwifi/iwl-core.h | 14 +++ drivers/net/wireless/iwlwifi/iwl-debugfs.c | 2 +- drivers/net/wireless/iwlwifi/iwl3945-base.c | 31 ++--- 11 files changed, 229 insertions(+), 204 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c index a95caa014143..2716b91ba9fa 100644 --- a/drivers/net/wireless/iwlwifi/iwl-1000.c +++ b/drivers/net/wireless/iwlwifi/iwl-1000.c @@ -99,6 +99,8 @@ static struct iwl_lib_ops iwl1000_lib = { .setup_deferred_work = iwl5000_setup_deferred_work, .is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr, .load_ucode = iwl5000_load_ucode, + .dump_nic_event_log = iwl_dump_nic_event_log, + .dump_nic_error_log = iwl_dump_nic_error_log, .init_alive_start = iwl5000_init_alive_start, .alive_notify = iwl5000_alive_notify, .send_tx_power = iwl5000_send_tx_power, diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c index e9a685d8e3a1..e70c5b0af364 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945.c +++ b/drivers/net/wireless/iwlwifi/iwl-3945.c @@ -2839,6 +2839,8 @@ static struct iwl_lib_ops iwl3945_lib = { .txq_free_tfd = iwl3945_hw_txq_free_tfd, .txq_init = iwl3945_hw_tx_queue_init, .load_ucode = iwl3945_load_bsm, + .dump_nic_event_log = iwl3945_dump_nic_event_log, + .dump_nic_error_log = iwl3945_dump_nic_error_log, .apm_ops = { .init = iwl3945_apm_init, .reset = iwl3945_apm_reset, diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h index f24036909916..21679bf3a1aa 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945.h +++ b/drivers/net/wireless/iwlwifi/iwl-3945.h @@ -209,6 +209,8 @@ extern int __must_check iwl3945_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd); extern unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv, struct ieee80211_hdr *hdr,int left); +extern void iwl3945_dump_nic_event_log(struct iwl_priv *priv); +extern void iwl3945_dump_nic_error_log(struct iwl_priv *priv); /* * Currently used by iwl-3945-rs... look at restructuring so that it doesn't diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 3259b8841544..a22a0501c190 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -2298,6 +2298,8 @@ static struct iwl_lib_ops iwl4965_lib = { .alive_notify = iwl4965_alive_notify, .init_alive_start = iwl4965_init_alive_start, .load_ucode = iwl4965_load_bsm, + .dump_nic_event_log = iwl_dump_nic_event_log, + .dump_nic_error_log = iwl_dump_nic_error_log, .apm_ops = { .init = iwl4965_apm_init, .reset = iwl4965_apm_reset, diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index a6391c7fea53..eb08f4411000 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -1535,6 +1535,8 @@ struct iwl_lib_ops iwl5000_lib = { .rx_handler_setup = iwl5000_rx_handler_setup, .setup_deferred_work = iwl5000_setup_deferred_work, .is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr, + .dump_nic_event_log = iwl_dump_nic_event_log, + .dump_nic_error_log = iwl_dump_nic_error_log, .load_ucode = iwl5000_load_ucode, .init_alive_start = iwl5000_init_alive_start, .alive_notify = iwl5000_alive_notify, @@ -1585,6 +1587,8 @@ static struct iwl_lib_ops iwl5150_lib = { .rx_handler_setup = iwl5000_rx_handler_setup, .setup_deferred_work = iwl5000_setup_deferred_work, .is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr, + .dump_nic_event_log = iwl_dump_nic_event_log, + .dump_nic_error_log = iwl_dump_nic_error_log, .load_ucode = iwl5000_load_ucode, .init_alive_start = iwl5000_init_alive_start, .alive_notify = iwl5000_alive_notify, diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c index 82b9c93dff54..c295b8ee9228 100644 --- a/drivers/net/wireless/iwlwifi/iwl-6000.c +++ b/drivers/net/wireless/iwlwifi/iwl-6000.c @@ -100,6 +100,8 @@ static struct iwl_lib_ops iwl6000_lib = { .setup_deferred_work = iwl5000_setup_deferred_work, .is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr, .load_ucode = iwl5000_load_ucode, + .dump_nic_event_log = iwl_dump_nic_event_log, + .dump_nic_error_log = iwl_dump_nic_error_log, .init_alive_start = iwl5000_init_alive_start, .alive_notify = iwl5000_alive_notify, .send_tx_power = iwl5000_send_tx_power, diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 00457bff1ed1..cdc07c477457 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -1526,6 +1526,191 @@ static int iwl_read_ucode(struct iwl_priv *priv) return ret; } +#ifdef CONFIG_IWLWIFI_DEBUG +static const char *desc_lookup_text[] = { + "OK", + "FAIL", + "BAD_PARAM", + "BAD_CHECKSUM", + "NMI_INTERRUPT_WDG", + "SYSASSERT", + "FATAL_ERROR", + "BAD_COMMAND", + "HW_ERROR_TUNE_LOCK", + "HW_ERROR_TEMPERATURE", + "ILLEGAL_CHAN_FREQ", + "VCC_NOT_STABLE", + "FH_ERROR", + "NMI_INTERRUPT_HOST", + "NMI_INTERRUPT_ACTION_PT", + "NMI_INTERRUPT_UNKNOWN", + "UCODE_VERSION_MISMATCH", + "HW_ERROR_ABS_LOCK", + "HW_ERROR_CAL_LOCK_FAIL", + "NMI_INTERRUPT_INST_ACTION_PT", + "NMI_INTERRUPT_DATA_ACTION_PT", + "NMI_TRM_HW_ER", + "NMI_INTERRUPT_TRM", + "NMI_INTERRUPT_BREAK_POINT" + "DEBUG_0", + "DEBUG_1", + "DEBUG_2", + "DEBUG_3", + "UNKNOWN" +}; + +static const char *desc_lookup(int i) +{ + int max = ARRAY_SIZE(desc_lookup_text) - 1; + + if (i < 0 || i > max) + i = max; + + return desc_lookup_text[i]; +} + +#define ERROR_START_OFFSET (1 * sizeof(u32)) +#define ERROR_ELEM_SIZE (7 * sizeof(u32)) + +void iwl_dump_nic_error_log(struct iwl_priv *priv) +{ + u32 data2, line; + u32 desc, time, count, base, data1; + u32 blink1, blink2, ilink1, ilink2; + + if (priv->ucode_type == UCODE_INIT) + base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr); + else + base = le32_to_cpu(priv->card_alive.error_event_table_ptr); + + if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { + IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base); + return; + } + + count = iwl_read_targ_mem(priv, base); + + if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { + IWL_ERR(priv, "Start IWL Error Log Dump:\n"); + IWL_ERR(priv, "Status: 0x%08lX, count: %d\n", + priv->status, count); + } + + desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32)); + blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32)); + blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32)); + ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32)); + ilink2 = iwl_read_targ_mem(priv, base + 6 * sizeof(u32)); + data1 = iwl_read_targ_mem(priv, base + 7 * sizeof(u32)); + data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32)); + line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32)); + time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32)); + + IWL_ERR(priv, "Desc Time " + "data1 data2 line\n"); + IWL_ERR(priv, "%-28s (#%02d) %010u 0x%08X 0x%08X %u\n", + desc_lookup(desc), desc, time, data1, data2, line); + IWL_ERR(priv, "blink1 blink2 ilink1 ilink2\n"); + IWL_ERR(priv, "0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2, + ilink1, ilink2); + +} + +#define EVENT_START_OFFSET (4 * sizeof(u32)) + +/** + * iwl_print_event_log - Dump error event log to syslog + * + */ +static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx, + u32 num_events, u32 mode) +{ + u32 i; + u32 base; /* SRAM byte address of event log header */ + u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ + u32 ptr; /* SRAM byte address of log data */ + u32 ev, time, data; /* event log data */ + + if (num_events == 0) + return; + if (priv->ucode_type == UCODE_INIT) + base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr); + else + base = le32_to_cpu(priv->card_alive.log_event_table_ptr); + + if (mode == 0) + event_size = 2 * sizeof(u32); + else + event_size = 3 * sizeof(u32); + + ptr = base + EVENT_START_OFFSET + (start_idx * event_size); + + /* "time" is actually "data" for mode 0 (no timestamp). + * place event id # at far right for easier visual parsing. */ + for (i = 0; i < num_events; i++) { + ev = iwl_read_targ_mem(priv, ptr); + ptr += sizeof(u32); + time = iwl_read_targ_mem(priv, ptr); + ptr += sizeof(u32); + if (mode == 0) { + /* data, ev */ + IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n", time, ev); + } else { + data = iwl_read_targ_mem(priv, ptr); + ptr += sizeof(u32); + IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n", + time, data, ev); + } + } +} + +void iwl_dump_nic_event_log(struct iwl_priv *priv) +{ + u32 base; /* SRAM byte address of event log header */ + u32 capacity; /* event log capacity in # entries */ + u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ + u32 num_wraps; /* # times uCode wrapped to top of log */ + u32 next_entry; /* index of next entry to be written by uCode */ + u32 size; /* # entries that we'll print */ + + if (priv->ucode_type == UCODE_INIT) + base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr); + else + base = le32_to_cpu(priv->card_alive.log_event_table_ptr); + + if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { + IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base); + return; + } + + /* event log header */ + capacity = iwl_read_targ_mem(priv, base); + mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); + num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); + next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32))); + + size = num_wraps ? capacity : next_entry; + + /* bail out if nothing in log */ + if (size == 0) { + IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n"); + return; + } + + IWL_ERR(priv, "Start IWL Event Log Dump: display count %d, wraps %d\n", + size, num_wraps); + + /* if uCode has wrapped back to top of log, start at the oldest entry, + * i.e the next one that uCode would fill. */ + if (num_wraps) + iwl_print_event_log(priv, next_entry, + capacity - next_entry, mode); + /* (then/else) start at top of log */ + iwl_print_event_log(priv, 0, next_entry, mode); + +} +#endif + /** * iwl_alive_start - called after REPLY_ALIVE notification received * from protocol/runtime uCode (initialization uCode's diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index fd26c0dc9c54..484d5c1a7312 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -1309,189 +1309,6 @@ static void iwl_print_rx_config_cmd(struct iwl_priv *priv) IWL_DEBUG_RADIO(priv, "u8[6] bssid_addr: %pM\n", rxon->bssid_addr); IWL_DEBUG_RADIO(priv, "u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id)); } - -static const char *desc_lookup_text[] = { - "OK", - "FAIL", - "BAD_PARAM", - "BAD_CHECKSUM", - "NMI_INTERRUPT_WDG", - "SYSASSERT", - "FATAL_ERROR", - "BAD_COMMAND", - "HW_ERROR_TUNE_LOCK", - "HW_ERROR_TEMPERATURE", - "ILLEGAL_CHAN_FREQ", - "VCC_NOT_STABLE", - "FH_ERROR", - "NMI_INTERRUPT_HOST", - "NMI_INTERRUPT_ACTION_PT", - "NMI_INTERRUPT_UNKNOWN", - "UCODE_VERSION_MISMATCH", - "HW_ERROR_ABS_LOCK", - "HW_ERROR_CAL_LOCK_FAIL", - "NMI_INTERRUPT_INST_ACTION_PT", - "NMI_INTERRUPT_DATA_ACTION_PT", - "NMI_TRM_HW_ER", - "NMI_INTERRUPT_TRM", - "NMI_INTERRUPT_BREAK_POINT" - "DEBUG_0", - "DEBUG_1", - "DEBUG_2", - "DEBUG_3", - "UNKNOWN" -}; - -static const char *desc_lookup(int i) -{ - int max = ARRAY_SIZE(desc_lookup_text) - 1; - - if (i < 0 || i > max) - i = max; - - return desc_lookup_text[i]; -} - -#define ERROR_START_OFFSET (1 * sizeof(u32)) -#define ERROR_ELEM_SIZE (7 * sizeof(u32)) - -static void iwl_dump_nic_error_log(struct iwl_priv *priv) -{ - u32 data2, line; - u32 desc, time, count, base, data1; - u32 blink1, blink2, ilink1, ilink2; - - if (priv->ucode_type == UCODE_INIT) - base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr); - else - base = le32_to_cpu(priv->card_alive.error_event_table_ptr); - - if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { - IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base); - return; - } - - count = iwl_read_targ_mem(priv, base); - - if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { - IWL_ERR(priv, "Start IWL Error Log Dump:\n"); - IWL_ERR(priv, "Status: 0x%08lX, count: %d\n", - priv->status, count); - } - - desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32)); - blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32)); - blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32)); - ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32)); - ilink2 = iwl_read_targ_mem(priv, base + 6 * sizeof(u32)); - data1 = iwl_read_targ_mem(priv, base + 7 * sizeof(u32)); - data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32)); - line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32)); - time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32)); - - IWL_ERR(priv, "Desc Time " - "data1 data2 line\n"); - IWL_ERR(priv, "%-28s (#%02d) %010u 0x%08X 0x%08X %u\n", - desc_lookup(desc), desc, time, data1, data2, line); - IWL_ERR(priv, "blink1 blink2 ilink1 ilink2\n"); - IWL_ERR(priv, "0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2, - ilink1, ilink2); - -} - -#define EVENT_START_OFFSET (4 * sizeof(u32)) - -/** - * iwl_print_event_log - Dump error event log to syslog - * - */ -static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx, - u32 num_events, u32 mode) -{ - u32 i; - u32 base; /* SRAM byte address of event log header */ - u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ - u32 ptr; /* SRAM byte address of log data */ - u32 ev, time, data; /* event log data */ - - if (num_events == 0) - return; - if (priv->ucode_type == UCODE_INIT) - base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr); - else - base = le32_to_cpu(priv->card_alive.log_event_table_ptr); - - if (mode == 0) - event_size = 2 * sizeof(u32); - else - event_size = 3 * sizeof(u32); - - ptr = base + EVENT_START_OFFSET + (start_idx * event_size); - - /* "time" is actually "data" for mode 0 (no timestamp). - * place event id # at far right for easier visual parsing. */ - for (i = 0; i < num_events; i++) { - ev = iwl_read_targ_mem(priv, ptr); - ptr += sizeof(u32); - time = iwl_read_targ_mem(priv, ptr); - ptr += sizeof(u32); - if (mode == 0) { - /* data, ev */ - IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n", time, ev); - } else { - data = iwl_read_targ_mem(priv, ptr); - ptr += sizeof(u32); - IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n", - time, data, ev); - } - } -} - -void iwl_dump_nic_event_log(struct iwl_priv *priv) -{ - u32 base; /* SRAM byte address of event log header */ - u32 capacity; /* event log capacity in # entries */ - u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ - u32 num_wraps; /* # times uCode wrapped to top of log */ - u32 next_entry; /* index of next entry to be written by uCode */ - u32 size; /* # entries that we'll print */ - - if (priv->ucode_type == UCODE_INIT) - base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr); - else - base = le32_to_cpu(priv->card_alive.log_event_table_ptr); - - if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { - IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base); - return; - } - - /* event log header */ - capacity = iwl_read_targ_mem(priv, base); - mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); - num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); - next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32))); - - size = num_wraps ? capacity : next_entry; - - /* bail out if nothing in log */ - if (size == 0) { - IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n"); - return; - } - - IWL_ERR(priv, "Start IWL Event Log Dump: display count %d, wraps %d\n", - size, num_wraps); - - /* if uCode has wrapped back to top of log, start at the oldest entry, - * i.e the next one that uCode would fill. */ - if (num_wraps) - iwl_print_event_log(priv, next_entry, - capacity - next_entry, mode); - /* (then/else) start at top of log */ - iwl_print_event_log(priv, 0, next_entry, mode); - -} #endif /** * iwl_irq_handle_error - called for HW or SW error interrupt from card @@ -1506,8 +1323,8 @@ void iwl_irq_handle_error(struct iwl_priv *priv) #ifdef CONFIG_IWLWIFI_DEBUG if (iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) { - iwl_dump_nic_error_log(priv); - iwl_dump_nic_event_log(priv); + priv->cfg->ops->lib->dump_nic_error_log(priv); + priv->cfg->ops->lib->dump_nic_event_log(priv); iwl_print_rx_config_cmd(priv); } #endif diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h index 7ff9ffb2b702..e50103a956b1 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.h +++ b/drivers/net/wireless/iwlwifi/iwl-core.h @@ -166,6 +166,8 @@ struct iwl_lib_ops { int (*is_valid_rtc_data_addr)(u32 addr); /* 1st ucode load */ int (*load_ucode)(struct iwl_priv *priv); + void (*dump_nic_event_log)(struct iwl_priv *priv); + void (*dump_nic_error_log)(struct iwl_priv *priv); /* power management */ struct iwl_apm_ops apm_ops; @@ -540,7 +542,19 @@ int iwl_pci_resume(struct pci_dev *pdev); /***************************************************** * Error Handling Debugging ******************************************************/ +#ifdef CONFIG_IWLWIFI_DEBUG void iwl_dump_nic_event_log(struct iwl_priv *priv); +void iwl_dump_nic_error_log(struct iwl_priv *priv); +#else +static inline void iwl_dump_nic_event_log(struct iwl_priv *priv) +{ +} + +static inline void iwl_dump_nic_error_log(struct iwl_priv *priv) +{ +} +#endif + void iwl_clear_isr_stats(struct iwl_priv *priv); /***************************************************** diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c index 8c374bf043d0..a198bcf61022 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c +++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c @@ -436,7 +436,7 @@ static ssize_t iwl_dbgfs_log_event_write(struct file *file, if (sscanf(buf, "%d", &event_log_flag) != 1) return -EFAULT; if (event_log_flag == 1) - iwl_dump_nic_event_log(priv); + priv->cfg->ops->lib->dump_nic_event_log(priv); return count; } diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index 4f2d43937283..c390dbd877e4 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -1481,6 +1481,7 @@ static inline void iwl_synchronize_irq(struct iwl_priv *priv) tasklet_kill(&priv->irq_tasklet); } +#ifdef CONFIG_IWLWIFI_DEBUG static const char *desc_lookup(int i) { switch (i) { @@ -1504,7 +1505,7 @@ static const char *desc_lookup(int i) #define ERROR_START_OFFSET (1 * sizeof(u32)) #define ERROR_ELEM_SIZE (7 * sizeof(u32)) -static void iwl3945_dump_nic_error_log(struct iwl_priv *priv) +void iwl3945_dump_nic_error_log(struct iwl_priv *priv) { u32 i; u32 desc, time, count, base, data1; @@ -1598,7 +1599,7 @@ static void iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx, } } -static void iwl3945_dump_nic_event_log(struct iwl_priv *priv) +void iwl3945_dump_nic_event_log(struct iwl_priv *priv) { u32 base; /* SRAM byte address of event log header */ u32 capacity; /* event log capacity in # entries */ @@ -1640,6 +1641,16 @@ static void iwl3945_dump_nic_event_log(struct iwl_priv *priv) iwl3945_print_event_log(priv, 0, next_entry, mode); } +#else +void iwl3945_dump_nic_event_log(struct iwl_priv *priv) +{ +} + +void iwl3945_dump_nic_error_log(struct iwl_priv *priv) +{ +} + +#endif static void iwl3945_irq_tasklet(struct iwl_priv *priv) { @@ -3683,21 +3694,6 @@ static ssize_t dump_error_log(struct device *d, static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log); -static ssize_t dump_event_log(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - char *p = (char *)buf; - - if (p[0] == '1') - iwl3945_dump_nic_event_log(priv); - - return strnlen(buf, count); -} - -static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log); - /***************************************************************************** * * driver setup and tear down @@ -3742,7 +3738,6 @@ static struct attribute *iwl3945_sysfs_entries[] = { &dev_attr_antenna.attr, &dev_attr_channels.attr, &dev_attr_dump_errors.attr, - &dev_attr_dump_events.attr, &dev_attr_flags.attr, &dev_attr_filter_flags.attr, #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT -- cgit v1.2.3-58-ga151 From 50fab0760a6c07cded229357a1351c325a575770 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 24 Sep 2009 20:15:24 +0100 Subject: sony-laptop: check for rfkill hard block at load time "I recently (on a flight) I found out that when I boot with the hard-switch activated, so turning off all wireless activity on my laptop, the state is not correctly announced in /dev/rfkill (reading it with rfkill command, or my own gnome applet)... After turning off and on again the hard-switch the events were right." We can fix this by querying the firmware at load time and calling rfkill_set_hw_state(). Signed-off-by: Alan Jenkins Tested-by: Norbert Preining Acked-by: Johannes Berg Acked-by: Mattia Dongili CC: stable@kernel.org Signed-off-by: John W. Linville --- drivers/platform/x86/sony-laptop.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index f9f68e0e7344..f3466a0fa25f 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -1078,6 +1078,8 @@ static int sony_nc_setup_rfkill(struct acpi_device *device, struct rfkill *rfk; enum rfkill_type type; const char *name; + int result; + bool hwblock; switch (nc_type) { case SONY_WIFI: @@ -1105,6 +1107,10 @@ static int sony_nc_setup_rfkill(struct acpi_device *device, if (!rfk) return -ENOMEM; + sony_call_snc_handle(0x124, 0x200, &result); + hwblock = !(result & 0x1); + rfkill_set_hw_state(rfk, hwblock); + err = rfkill_register(rfk); if (err) { rfkill_destroy(rfk); -- cgit v1.2.3-58-ga151 From a0d97d6c7ceddc176b5eed171aa2a52e32cf3eda Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Fri, 25 Sep 2009 10:18:21 +0100 Subject: sony-laptop: re-read the rfkill state when resuming from suspend Without this, the hard-blocked state will be reported incorrectly if the hardware switch is changed while the laptop is suspended. Signed-off-by: Alan Jenkins Tested-by: Norbert Preining Acked-by: Mattia Dongili Signed-off-by: John W. Linville --- drivers/platform/x86/sony-laptop.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index f3466a0fa25f..afdbdaaf80cb 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -1041,6 +1041,9 @@ static int sony_nc_resume(struct acpi_device *device) sony_backlight_update_status(sony_backlight_device) < 0) printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n"); + /* re-read rfkill state */ + sony_nc_rfkill_update(); + return 0; } -- cgit v1.2.3-58-ga151