static struct semaphore add_remove_card_sem;
+static struct memory_type_mapping mem_type_mapping_tbl[] = {
+ {"ITCM", NULL, 0, 0xF0},
+ {"DTCM", NULL, 0, 0xF1},
+ {"SQRAM", NULL, 0, 0xF2},
+ {"IRAM", NULL, 0, 0xF3},
+};
+
static int
mwifiex_map_pci_memory(struct mwifiex_adapter *adapter, struct sk_buff *skb,
size_t size, int flags)
card->pcie.reg = data->reg;
card->pcie.blksz_fw_dl = data->blksz_fw_dl;
card->pcie.tx_buf_size = data->tx_buf_size;
+ card->pcie.supports_fw_dump = data->supports_fw_dump;
}
if (mwifiex_add_card(card, &add_remove_card_sem, &pcie_ops,
if (!adapter || !adapter->priv_num)
return;
+ cancel_work_sync(&adapter->iface_work);
+
if (user_rmmod) {
#ifdef CONFIG_PM_SLEEP
if (adapter->is_suspended)
return 0;
}
+/* This function reads u8 data from PCIE card register. */
+static int mwifiex_read_reg_byte(struct mwifiex_adapter *adapter,
+ int reg, u8 *data)
+{
+ struct pcie_service_card *card = adapter->card;
+
+ *data = ioread8(card->pci_mmap1 + reg);
+
+ return 0;
+}
+
/*
* This function adds delay loop to ensure FW is awake before proceeding.
*/
return 0;
}
+/* This function read/write firmware */
+static enum rdwr_status
+mwifiex_pcie_rdwr_firmware(struct mwifiex_adapter *adapter, u8 doneflag)
+{
+ int ret, tries;
+ u8 ctrl_data;
+ struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
+
+ ret = mwifiex_write_reg(adapter, reg->fw_dump_ctrl, FW_DUMP_HOST_READY);
+ if (ret) {
+ dev_err(adapter->dev, "PCIE write err\n");
+ return RDWR_STATUS_FAILURE;
+ }
+
+ for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
+ mwifiex_read_reg_byte(adapter, reg->fw_dump_ctrl, &ctrl_data);
+ if (ctrl_data == FW_DUMP_DONE)
+ return RDWR_STATUS_SUCCESS;
+ if (doneflag && ctrl_data == doneflag)
+ return RDWR_STATUS_DONE;
+ if (ctrl_data != FW_DUMP_HOST_READY) {
+ dev_info(adapter->dev,
+ "The ctrl reg was changed, re-try again!\n");
+ mwifiex_write_reg(adapter, reg->fw_dump_ctrl,
+ FW_DUMP_HOST_READY);
+ if (ret) {
+ dev_err(adapter->dev, "PCIE write err\n");
+ return RDWR_STATUS_FAILURE;
+ }
+ }
+ usleep_range(100, 200);
+ }
+
+ dev_err(adapter->dev, "Fail to pull ctrl_data\n");
+ return RDWR_STATUS_FAILURE;
+}
+
+/* This function dump firmware memory to file */
+static void mwifiex_pcie_fw_dump_work(struct mwifiex_adapter *adapter)
+{
+ struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *creg = card->pcie.reg;
+ unsigned int reg, reg_start, reg_end;
+ struct timeval t;
+ u8 *dbg_ptr, *end_ptr, dump_num, idx, i, read_reg, doneflag = 0;
+ enum rdwr_status stat;
+ u32 memory_size;
+ static char *env[] = { "DRIVER=mwifiex_pcie", "EVENT=fw_dump", NULL };
+
+ if (!card->pcie.supports_fw_dump)
+ return;
+
+ for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) {
+ struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
+
+ if (entry->mem_ptr) {
+ vfree(entry->mem_ptr);
+ entry->mem_ptr = NULL;
+ }
+ entry->mem_size = 0;
+ }
+
+ do_gettimeofday(&t);
+ dev_info(adapter->dev, "== mwifiex firmware dump start: %u.%06u ==\n",
+ (u32)t.tv_sec, (u32)t.tv_usec);
+
+ /* Read the number of the memories which will dump */
+ stat = mwifiex_pcie_rdwr_firmware(adapter, doneflag);
+ if (stat == RDWR_STATUS_FAILURE)
+ goto done;
+
+ reg = creg->fw_dump_start;
+ mwifiex_read_reg_byte(adapter, reg, &dump_num);
+
+ /* Read the length of every memory which will dump */
+ for (idx = 0; idx < dump_num; idx++) {
+ struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
+
+ stat = mwifiex_pcie_rdwr_firmware(adapter, doneflag);
+ if (stat == RDWR_STATUS_FAILURE)
+ goto done;
+
+ memory_size = 0;
+ reg = creg->fw_dump_start;
+ for (i = 0; i < 4; i++) {
+ mwifiex_read_reg_byte(adapter, reg, &read_reg);
+ memory_size |= (read_reg << (i * 8));
+ reg++;
+ }
+
+ if (memory_size == 0) {
+ dev_info(adapter->dev, "Firmware dump Finished!\n");
+ break;
+ }
+
+ dev_info(adapter->dev,
+ "%s_SIZE=0x%x\n", entry->mem_name, memory_size);
+ entry->mem_ptr = vmalloc(memory_size + 1);
+ entry->mem_size = memory_size;
+ if (!entry->mem_ptr) {
+ dev_err(adapter->dev,
+ "Vmalloc %s failed\n", entry->mem_name);
+ goto done;
+ }
+ dbg_ptr = entry->mem_ptr;
+ end_ptr = dbg_ptr + memory_size;
+
+ doneflag = entry->done_flag;
+ do_gettimeofday(&t);
+ dev_info(adapter->dev, "Start %s output %u.%06u, please wait...\n",
+ entry->mem_name, (u32)t.tv_sec, (u32)t.tv_usec);
+
+ do {
+ stat = mwifiex_pcie_rdwr_firmware(adapter, doneflag);
+ if (RDWR_STATUS_FAILURE == stat)
+ goto done;
+
+ reg_start = creg->fw_dump_start;
+ reg_end = creg->fw_dump_end;
+ for (reg = reg_start; reg <= reg_end; reg++) {
+ mwifiex_read_reg_byte(adapter, reg, dbg_ptr);
+ if (dbg_ptr < end_ptr)
+ dbg_ptr++;
+ else
+ dev_err(adapter->dev,
+ "Allocated buf not enough\n");
+ }
+
+ if (stat != RDWR_STATUS_DONE)
+ continue;
+
+ dev_info(adapter->dev, "%s done: size=0x%tx\n",
+ entry->mem_name, dbg_ptr - entry->mem_ptr);
+ break;
+ } while (true);
+ }
+ do_gettimeofday(&t);
+ dev_info(adapter->dev, "== mwifiex firmware dump end: %u.%06u ==\n",
+ (u32)t.tv_sec, (u32)t.tv_usec);
+
+ kobject_uevent_env(&adapter->wiphy->dev.kobj, KOBJ_CHANGE, env);
+
+done:
+ adapter->curr_mem_idx = 0;
+}
+
+static void mwifiex_pcie_work(struct work_struct *work)
+{
+ struct mwifiex_adapter *adapter =
+ container_of(work, struct mwifiex_adapter, iface_work);
+
+ if (test_and_clear_bit(MWIFIEX_IFACE_WORK_FW_DUMP,
+ &adapter->iface_work_flags))
+ mwifiex_pcie_fw_dump_work(adapter);
+}
+
+/* This function dumps FW information */
+static void mwifiex_pcie_fw_dump(struct mwifiex_adapter *adapter)
+{
+ if (test_bit(MWIFIEX_IFACE_WORK_FW_DUMP, &adapter->iface_work_flags))
+ return;
+
+ set_bit(MWIFIEX_IFACE_WORK_FW_DUMP, &adapter->iface_work_flags);
+
+ schedule_work(&adapter->iface_work);
+}
+
/*
* This function initializes the PCI-E host memory space, WCB rings, etc.
*
adapter->dev = &pdev->dev;
adapter->tx_buf_size = card->pcie.tx_buf_size;
+ adapter->mem_type_mapping_tbl = mem_type_mapping_tbl;
+ adapter->num_mem_types = ARRAY_SIZE(mem_type_mapping_tbl);
strcpy(adapter->fw_name, card->pcie.firmware);
return 0;
.cleanup_mpa_buf = NULL,
.init_fw_port = mwifiex_pcie_init_fw_port,
.clean_pcie_ring = mwifiex_clean_pcie_ring_buf,
+ .fw_dump = mwifiex_pcie_fw_dump,
+ .iface_work = mwifiex_pcie_work,
};
/*
projects / deliverable / linux.git / blobdiff