*
*****************************************************************************/
#include <linux/completion.h>
+#include <linux/dma-mapping.h>
+#include <linux/firmware.h>
+#include <linux/module.h>
#include "iwl-drv.h"
#include "iwl-trans.h"
#include "iwl-wifi.h"
+#include "iwl-shared.h"
#include "iwl-op-mode.h"
+static void iwl_free_fw_desc(struct iwl_nic *nic, struct fw_desc *desc)
+{
+ if (desc->v_addr)
+ dma_free_coherent(trans(nic)->dev, desc->len,
+ desc->v_addr, desc->p_addr);
+ desc->v_addr = NULL;
+ desc->len = 0;
+}
+
+static void iwl_free_fw_img(struct iwl_nic *nic, struct fw_img *img)
+{
+ iwl_free_fw_desc(nic, &img->code);
+ iwl_free_fw_desc(nic, &img->data);
+}
+
+static void iwl_dealloc_ucode(struct iwl_nic *nic)
+{
+ iwl_free_fw_img(nic, &nic->fw.ucode_rt);
+ iwl_free_fw_img(nic, &nic->fw.ucode_init);
+ iwl_free_fw_img(nic, &nic->fw.ucode_wowlan);
+}
+
+static int iwl_alloc_fw_desc(struct iwl_nic *nic, struct fw_desc *desc,
+ const void *data, size_t len)
+{
+ if (!len) {
+ desc->v_addr = NULL;
+ return -EINVAL;
+ }
+
+ desc->v_addr = dma_alloc_coherent(trans(nic)->dev, len,
+ &desc->p_addr, GFP_KERNEL);
+ if (!desc->v_addr)
+ return -ENOMEM;
+
+ desc->len = len;
+ memcpy(desc->v_addr, data, len);
+ return 0;
+}
+
+static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context);
+
+#define UCODE_EXPERIMENTAL_INDEX 100
+#define UCODE_EXPERIMENTAL_TAG "exp"
+
+static int iwl_request_firmware(struct iwl_nic *nic, bool first)
+{
+ const struct iwl_cfg *cfg = cfg(nic);
+ const char *name_pre = cfg->fw_name_pre;
+ char tag[8];
+
+ if (first) {
+#ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
+ nic->fw_index = UCODE_EXPERIMENTAL_INDEX;
+ strcpy(tag, UCODE_EXPERIMENTAL_TAG);
+ } else if (nic->fw_index == UCODE_EXPERIMENTAL_INDEX) {
+#endif
+ nic->fw_index = cfg->ucode_api_max;
+ sprintf(tag, "%d", nic->fw_index);
+ } else {
+ nic->fw_index--;
+ sprintf(tag, "%d", nic->fw_index);
+ }
+
+ if (nic->fw_index < cfg->ucode_api_min) {
+ IWL_ERR(nic, "no suitable firmware found!\n");
+ return -ENOENT;
+ }
+
+ sprintf(nic->firmware_name, "%s%s%s", name_pre, tag, ".ucode");
+
+ IWL_DEBUG_INFO(nic, "attempting to load firmware %s'%s'\n",
+ (nic->fw_index == UCODE_EXPERIMENTAL_INDEX)
+ ? "EXPERIMENTAL " : "",
+ nic->firmware_name);
+
+ return request_firmware_nowait(THIS_MODULE, 1, nic->firmware_name,
+ trans(nic)->dev,
+ GFP_KERNEL, nic, iwl_ucode_callback);
+}
+
+struct iwlagn_firmware_pieces {
+ const void *inst, *data, *init, *init_data, *wowlan_inst, *wowlan_data;
+ size_t inst_size, data_size, init_size, init_data_size,
+ wowlan_inst_size, wowlan_data_size;
+
+ u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
+ u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
+};
+
+static int iwl_parse_v1_v2_firmware(struct iwl_nic *nic,
+ const struct firmware *ucode_raw,
+ struct iwlagn_firmware_pieces *pieces)
+{
+ struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
+ u32 api_ver, hdr_size, build;
+ char buildstr[25];
+ const u8 *src;
+
+ nic->fw.ucode_ver = le32_to_cpu(ucode->ver);
+ api_ver = IWL_UCODE_API(nic->fw.ucode_ver);
+
+ switch (api_ver) {
+ default:
+ hdr_size = 28;
+ if (ucode_raw->size < hdr_size) {
+ IWL_ERR(nic, "File size too small!\n");
+ return -EINVAL;
+ }
+ build = le32_to_cpu(ucode->u.v2.build);
+ pieces->inst_size = le32_to_cpu(ucode->u.v2.inst_size);
+ pieces->data_size = le32_to_cpu(ucode->u.v2.data_size);
+ pieces->init_size = le32_to_cpu(ucode->u.v2.init_size);
+ pieces->init_data_size =
+ le32_to_cpu(ucode->u.v2.init_data_size);
+ src = ucode->u.v2.data;
+ break;
+ case 0:
+ case 1:
+ case 2:
+ hdr_size = 24;
+ if (ucode_raw->size < hdr_size) {
+ IWL_ERR(nic, "File size too small!\n");
+ return -EINVAL;
+ }
+ build = 0;
+ pieces->inst_size = le32_to_cpu(ucode->u.v1.inst_size);
+ pieces->data_size = le32_to_cpu(ucode->u.v1.data_size);
+ pieces->init_size = le32_to_cpu(ucode->u.v1.init_size);
+ pieces->init_data_size =
+ le32_to_cpu(ucode->u.v1.init_data_size);
+ src = ucode->u.v1.data;
+ break;
+ }
+
+ if (build)
+ sprintf(buildstr, " build %u%s", build,
+ (nic->fw_index == UCODE_EXPERIMENTAL_INDEX)
+ ? " (EXP)" : "");
+ else
+ buildstr[0] = '\0';
+
+ snprintf(nic->fw.fw_version,
+ sizeof(nic->fw.fw_version),
+ "%u.%u.%u.%u%s",
+ IWL_UCODE_MAJOR(nic->fw.ucode_ver),
+ IWL_UCODE_MINOR(nic->fw.ucode_ver),
+ IWL_UCODE_API(nic->fw.ucode_ver),
+ IWL_UCODE_SERIAL(nic->fw.ucode_ver),
+ buildstr);
+
+ /* Verify size of file vs. image size info in file's header */
+ if (ucode_raw->size != hdr_size + pieces->inst_size +
+ pieces->data_size + pieces->init_size +
+ pieces->init_data_size) {
+
+ IWL_ERR(nic,
+ "uCode file size %d does not match expected size\n",
+ (int)ucode_raw->size);
+ return -EINVAL;
+ }
+
+ pieces->inst = src;
+ src += pieces->inst_size;
+ pieces->data = src;
+ src += pieces->data_size;
+ pieces->init = src;
+ src += pieces->init_size;
+ pieces->init_data = src;
+ src += pieces->init_data_size;
+
+ return 0;
+}
+
+static int iwl_parse_tlv_firmware(struct iwl_nic *nic,
+ const struct firmware *ucode_raw,
+ struct iwlagn_firmware_pieces *pieces,
+ struct iwl_ucode_capabilities *capa)
+{
+ struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
+ struct iwl_ucode_tlv *tlv;
+ size_t len = ucode_raw->size;
+ const u8 *data;
+ int wanted_alternative = iwlagn_mod_params.wanted_ucode_alternative;
+ int tmp;
+ u64 alternatives;
+ u32 tlv_len;
+ enum iwl_ucode_tlv_type tlv_type;
+ const u8 *tlv_data;
+ char buildstr[25];
+ u32 build;
+
+ if (len < sizeof(*ucode)) {
+ IWL_ERR(nic, "uCode has invalid length: %zd\n", len);
+ return -EINVAL;
+ }
+
+ if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
+ IWL_ERR(nic, "invalid uCode magic: 0X%x\n",
+ le32_to_cpu(ucode->magic));
+ return -EINVAL;
+ }
+
+ /*
+ * Check which alternatives are present, and "downgrade"
+ * when the chosen alternative is not present, warning
+ * the user when that happens. Some files may not have
+ * any alternatives, so don't warn in that case.
+ */
+ alternatives = le64_to_cpu(ucode->alternatives);
+ tmp = wanted_alternative;
+ if (wanted_alternative > 63)
+ wanted_alternative = 63;
+ while (wanted_alternative && !(alternatives & BIT(wanted_alternative)))
+ wanted_alternative--;
+ if (wanted_alternative && wanted_alternative != tmp)
+ IWL_WARN(nic,
+ "uCode alternative %d not available, choosing %d\n",
+ tmp, wanted_alternative);
+
+ nic->fw.ucode_ver = le32_to_cpu(ucode->ver);
+ build = le32_to_cpu(ucode->build);
+
+ if (build)
+ sprintf(buildstr, " build %u%s", build,
+ (nic->fw_index == UCODE_EXPERIMENTAL_INDEX)
+ ? " (EXP)" : "");
+ else
+ buildstr[0] = '\0';
+
+ snprintf(nic->fw.fw_version,
+ sizeof(nic->fw.fw_version),
+ "%u.%u.%u.%u%s",
+ IWL_UCODE_MAJOR(nic->fw.ucode_ver),
+ IWL_UCODE_MINOR(nic->fw.ucode_ver),
+ IWL_UCODE_API(nic->fw.ucode_ver),
+ IWL_UCODE_SERIAL(nic->fw.ucode_ver),
+ buildstr);
+
+ data = ucode->data;
+
+ len -= sizeof(*ucode);
+
+ while (len >= sizeof(*tlv)) {
+ u16 tlv_alt;
+
+ len -= sizeof(*tlv);
+ tlv = (void *)data;
+
+ tlv_len = le32_to_cpu(tlv->length);
+ tlv_type = le16_to_cpu(tlv->type);
+ tlv_alt = le16_to_cpu(tlv->alternative);
+ tlv_data = tlv->data;
+
+ if (len < tlv_len) {
+ IWL_ERR(nic, "invalid TLV len: %zd/%u\n",
+ len, tlv_len);
+ return -EINVAL;
+ }
+ len -= ALIGN(tlv_len, 4);
+ data += sizeof(*tlv) + ALIGN(tlv_len, 4);
+
+ /*
+ * Alternative 0 is always valid.
+ *
+ * Skip alternative TLVs that are not selected.
+ */
+ if (tlv_alt != 0 && tlv_alt != wanted_alternative)
+ continue;
+
+ switch (tlv_type) {
+ case IWL_UCODE_TLV_INST:
+ pieces->inst = tlv_data;
+ pieces->inst_size = tlv_len;
+ break;
+ case IWL_UCODE_TLV_DATA:
+ pieces->data = tlv_data;
+ pieces->data_size = tlv_len;
+ break;
+ case IWL_UCODE_TLV_INIT:
+ pieces->init = tlv_data;
+ pieces->init_size = tlv_len;
+ break;
+ case IWL_UCODE_TLV_INIT_DATA:
+ pieces->init_data = tlv_data;
+ pieces->init_data_size = tlv_len;
+ break;
+ case IWL_UCODE_TLV_BOOT:
+ IWL_ERR(nic, "Found unexpected BOOT ucode\n");
+ break;
+ case IWL_UCODE_TLV_PROBE_MAX_LEN:
+ if (tlv_len != sizeof(u32))
+ goto invalid_tlv_len;
+ capa->max_probe_length =
+ le32_to_cpup((__le32 *)tlv_data);
+ break;
+ case IWL_UCODE_TLV_PAN:
+ if (tlv_len)
+ goto invalid_tlv_len;
+ capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
+ break;
+ case IWL_UCODE_TLV_FLAGS:
+ /* must be at least one u32 */
+ if (tlv_len < sizeof(u32))
+ goto invalid_tlv_len;
+ /* and a proper number of u32s */
+ if (tlv_len % sizeof(u32))
+ goto invalid_tlv_len;
+ /*
+ * This driver only reads the first u32 as
+ * right now no more features are defined,
+ * if that changes then either the driver
+ * will not work with the new firmware, or
+ * it'll not take advantage of new features.
+ */
+ capa->flags = le32_to_cpup((__le32 *)tlv_data);
+ break;
+ case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
+ if (tlv_len != sizeof(u32))
+ goto invalid_tlv_len;
+ pieces->init_evtlog_ptr =
+ le32_to_cpup((__le32 *)tlv_data);
+ break;
+ case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
+ if (tlv_len != sizeof(u32))
+ goto invalid_tlv_len;
+ pieces->init_evtlog_size =
+ le32_to_cpup((__le32 *)tlv_data);
+ break;
+ case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
+ if (tlv_len != sizeof(u32))
+ goto invalid_tlv_len;
+ pieces->init_errlog_ptr =
+ le32_to_cpup((__le32 *)tlv_data);
+ break;
+ case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
+ if (tlv_len != sizeof(u32))
+ goto invalid_tlv_len;
+ pieces->inst_evtlog_ptr =
+ le32_to_cpup((__le32 *)tlv_data);
+ break;
+ case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
+ if (tlv_len != sizeof(u32))
+ goto invalid_tlv_len;
+ pieces->inst_evtlog_size =
+ le32_to_cpup((__le32 *)tlv_data);
+ break;
+ case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
+ if (tlv_len != sizeof(u32))
+ goto invalid_tlv_len;
+ pieces->inst_errlog_ptr =
+ le32_to_cpup((__le32 *)tlv_data);
+ break;
+ case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
+ if (tlv_len)
+ goto invalid_tlv_len;
+ nic->fw.enhance_sensitivity_table = true;
+ break;
+ case IWL_UCODE_TLV_WOWLAN_INST:
+ pieces->wowlan_inst = tlv_data;
+ pieces->wowlan_inst_size = tlv_len;
+ break;
+ case IWL_UCODE_TLV_WOWLAN_DATA:
+ pieces->wowlan_data = tlv_data;
+ pieces->wowlan_data_size = tlv_len;
+ break;
+ case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
+ if (tlv_len != sizeof(u32))
+ goto invalid_tlv_len;
+ capa->standard_phy_calibration_size =
+ le32_to_cpup((__le32 *)tlv_data);
+ break;
+ default:
+ IWL_DEBUG_INFO(nic, "unknown TLV: %d\n", tlv_type);
+ break;
+ }
+ }
+
+ if (len) {
+ IWL_ERR(nic, "invalid TLV after parsing: %zd\n", len);
+ iwl_print_hex_dump(nic, IWL_DL_FW, (u8 *)data, len);
+ return -EINVAL;
+ }
+
+ return 0;
+
+ invalid_tlv_len:
+ IWL_ERR(nic, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
+ iwl_print_hex_dump(nic, IWL_DL_FW, tlv_data, tlv_len);
+
+ return -EINVAL;
+}
+
+/**
+ * iwl_ucode_callback - callback when firmware was loaded
+ *
+ * If loaded successfully, copies the firmware into buffers
+ * for the card to fetch (via DMA).
+ */
+static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
+{
+ struct iwl_nic *nic = context;
+ const struct iwl_cfg *cfg = cfg(nic);
+ struct iwl_fw *fw = &nic->fw;
+ struct iwl_ucode_header *ucode;
+ int err;
+ struct iwlagn_firmware_pieces pieces;
+ const unsigned int api_max = cfg->ucode_api_max;
+ unsigned int api_ok = cfg->ucode_api_ok;
+ const unsigned int api_min = cfg->ucode_api_min;
+ u32 api_ver;
+
+ fw->ucode_capa.max_probe_length = 200;
+ fw->ucode_capa.standard_phy_calibration_size =
+ IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
+
+ if (!api_ok)
+ api_ok = api_max;
+
+ memset(&pieces, 0, sizeof(pieces));
+
+ if (!ucode_raw) {
+ if (nic->fw_index <= api_ok)
+ IWL_ERR(nic,
+ "request for firmware file '%s' failed.\n",
+ nic->firmware_name);
+ goto try_again;
+ }
+
+ IWL_DEBUG_INFO(nic, "Loaded firmware file '%s' (%zd bytes).\n",
+ nic->firmware_name, ucode_raw->size);
+
+ /* Make sure that we got at least the API version number */
+ if (ucode_raw->size < 4) {
+ IWL_ERR(nic, "File size way too small!\n");
+ goto try_again;
+ }
+
+ /* Data from ucode file: header followed by uCode images */
+ ucode = (struct iwl_ucode_header *)ucode_raw->data;
+
+ if (ucode->ver)
+ err = iwl_parse_v1_v2_firmware(nic, ucode_raw, &pieces);
+ else
+ err = iwl_parse_tlv_firmware(nic, ucode_raw, &pieces,
+ &fw->ucode_capa);
+
+ if (err)
+ goto try_again;
+
+ api_ver = IWL_UCODE_API(nic->fw.ucode_ver);
+
+ /*
+ * api_ver should match the api version forming part of the
+ * firmware filename ... but we don't check for that and only rely
+ * on the API version read from firmware header from here on forward
+ */
+ /* no api version check required for experimental uCode */
+ if (nic->fw_index != UCODE_EXPERIMENTAL_INDEX) {
+ if (api_ver < api_min || api_ver > api_max) {
+ IWL_ERR(nic,
+ "Driver unable to support your firmware API. "
+ "Driver supports v%u, firmware is v%u.\n",
+ api_max, api_ver);
+ goto try_again;
+ }
+
+ if (api_ver < api_ok) {
+ if (api_ok != api_max)
+ IWL_ERR(nic, "Firmware has old API version, "
+ "expected v%u through v%u, got v%u.\n",
+ api_ok, api_max, api_ver);
+ else
+ IWL_ERR(nic, "Firmware has old API version, "
+ "expected v%u, got v%u.\n",
+ api_max, api_ver);
+ IWL_ERR(nic, "New firmware can be obtained from "
+ "http://www.intellinuxwireless.org/.\n");
+ }
+ }
+
+ IWL_INFO(nic, "loaded firmware version %s", nic->fw.fw_version);
+
+ /*
+ * For any of the failures below (before allocating pci memory)
+ * we will try to load a version with a smaller API -- maybe the
+ * user just got a corrupted version of the latest API.
+ */
+
+ IWL_DEBUG_INFO(nic, "f/w package hdr ucode version raw = 0x%x\n",
+ nic->fw.ucode_ver);
+ IWL_DEBUG_INFO(nic, "f/w package hdr runtime inst size = %Zd\n",
+ pieces.inst_size);
+ IWL_DEBUG_INFO(nic, "f/w package hdr runtime data size = %Zd\n",
+ pieces.data_size);
+ IWL_DEBUG_INFO(nic, "f/w package hdr init inst size = %Zd\n",
+ pieces.init_size);
+ IWL_DEBUG_INFO(nic, "f/w package hdr init data size = %Zd\n",
+ pieces.init_data_size);
+
+ /* Verify that uCode images will fit in card's SRAM */
+ if (pieces.inst_size > cfg->max_inst_size) {
+ IWL_ERR(nic, "uCode instr len %Zd too large to fit in\n",
+ pieces.inst_size);
+ goto try_again;
+ }
+
+ if (pieces.data_size > cfg->max_data_size) {
+ IWL_ERR(nic, "uCode data len %Zd too large to fit in\n",
+ pieces.data_size);
+ goto try_again;
+ }
+
+ if (pieces.init_size > cfg->max_inst_size) {
+ IWL_ERR(nic, "uCode init instr len %Zd too large to fit in\n",
+ pieces.init_size);
+ goto try_again;
+ }
+
+ if (pieces.init_data_size > cfg->max_data_size) {
+ IWL_ERR(nic, "uCode init data len %Zd too large to fit in\n",
+ pieces.init_data_size);
+ goto try_again;
+ }
+
+ /* Allocate ucode buffers for card's bus-master loading ... */
+
+ /* Runtime instructions and 2 copies of data:
+ * 1) unmodified from disk
+ * 2) backup cache for save/restore during power-downs */
+ if (iwl_alloc_fw_desc(nic, &nic->fw.ucode_rt.code,
+ pieces.inst, pieces.inst_size))
+ goto err_pci_alloc;
+ if (iwl_alloc_fw_desc(nic, &nic->fw.ucode_rt.data,
+ pieces.data, pieces.data_size))
+ goto err_pci_alloc;
+
+ /* Initialization instructions and data */
+ if (pieces.init_size && pieces.init_data_size) {
+ if (iwl_alloc_fw_desc(nic,
+ &nic->fw.ucode_init.code,
+ pieces.init, pieces.init_size))
+ goto err_pci_alloc;
+ if (iwl_alloc_fw_desc(nic,
+ &nic->fw.ucode_init.data,
+ pieces.init_data, pieces.init_data_size))
+ goto err_pci_alloc;
+ }
+
+ /* WoWLAN instructions and data */
+ if (pieces.wowlan_inst_size && pieces.wowlan_data_size) {
+ if (iwl_alloc_fw_desc(nic,
+ &nic->fw.ucode_wowlan.code,
+ pieces.wowlan_inst,
+ pieces.wowlan_inst_size))
+ goto err_pci_alloc;
+ if (iwl_alloc_fw_desc(nic,
+ &nic->fw.ucode_wowlan.data,
+ pieces.wowlan_data,
+ pieces.wowlan_data_size))
+ goto err_pci_alloc;
+ }
+
+ /* Now that we can no longer fail, copy information */
+
+ /*
+ * The (size - 16) / 12 formula is based on the information recorded
+ * for each event, which is of mode 1 (including timestamp) for all
+ * new microcodes that include this information.
+ */
+ nic->init_evtlog_ptr = pieces.init_evtlog_ptr;
+ if (pieces.init_evtlog_size)
+ nic->init_evtlog_size = (pieces.init_evtlog_size - 16)/12;
+ else
+ nic->init_evtlog_size =
+ cfg->base_params->max_event_log_size;
+ nic->init_errlog_ptr = pieces.init_errlog_ptr;
+ nic->inst_evtlog_ptr = pieces.inst_evtlog_ptr;
+ if (pieces.inst_evtlog_size)
+ nic->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12;
+ else
+ nic->inst_evtlog_size =
+ cfg->base_params->max_event_log_size;
+ nic->inst_errlog_ptr = pieces.inst_errlog_ptr;
+
+ /*
+ * figure out the offset of chain noise reset and gain commands
+ * base on the size of standard phy calibration commands table size
+ */
+ if (fw->ucode_capa.standard_phy_calibration_size >
+ IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
+ fw->ucode_capa.standard_phy_calibration_size =
+ IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
+
+ /* We have our copies now, allow OS release its copies */
+ release_firmware(ucode_raw);
+ complete(&nic->request_firmware_complete);
+
+ nic->op_mode = iwl_dvm_ops.start(nic->shrd->trans);
+
+ if (!nic->op_mode)
+ goto out_unbind;
+
+ return;
+
+ try_again:
+ /* try next, if any */
+ release_firmware(ucode_raw);
+ if (iwl_request_firmware(nic, false))
+ goto out_unbind;
+ return;
+
+ err_pci_alloc:
+ IWL_ERR(nic, "failed to allocate pci memory\n");
+ iwl_dealloc_ucode(nic);
+ release_firmware(ucode_raw);
+ out_unbind:
+ complete(&nic->request_firmware_complete);
+ device_release_driver(trans(nic)->dev);
+}
+
int iwl_drv_start(struct iwl_shared *shrd,
struct iwl_trans *trans, const struct iwl_cfg *cfg)
{
*****************************************************************************/
#include <linux/kernel.h>
-#include <linux/module.h>
#include <linux/init.h>
#include <linux/sched.h>
-#include <linux/dma-mapping.h>
-#include <linux/firmware.h>
#include "iwl-ucode.h"
#include "iwl-wifi.h"
*
******************************************************************************/
-static void iwl_free_fw_desc(struct iwl_nic *nic, struct fw_desc *desc)
-{
- if (desc->v_addr)
- dma_free_coherent(trans(nic)->dev, desc->len,
- desc->v_addr, desc->p_addr);
- desc->v_addr = NULL;
- desc->len = 0;
-}
-
-static void iwl_free_fw_img(struct iwl_nic *nic, struct fw_img *img)
-{
- iwl_free_fw_desc(nic, &img->code);
- iwl_free_fw_desc(nic, &img->data);
-}
-
-void iwl_dealloc_ucode(struct iwl_nic *nic)
-{
- iwl_free_fw_img(nic, &nic->fw.ucode_rt);
- iwl_free_fw_img(nic, &nic->fw.ucode_init);
- iwl_free_fw_img(nic, &nic->fw.ucode_wowlan);
-}
-
-static int iwl_alloc_fw_desc(struct iwl_nic *nic, struct fw_desc *desc,
- const void *data, size_t len)
-{
- if (!len) {
- desc->v_addr = NULL;
- return -EINVAL;
- }
-
- desc->v_addr = dma_alloc_coherent(trans(nic)->dev, len,
- &desc->p_addr, GFP_KERNEL);
- if (!desc->v_addr)
- return -ENOMEM;
-
- desc->len = len;
- memcpy(desc->v_addr, data, len);
- return 0;
-}
-
static inline struct fw_img *iwl_get_ucode_image(struct iwl_nic *nic,
enum iwl_ucode_type ucode_type)
{
iwl_trans_stop_device(trans);
return ret;
}
-
-static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context);
-
-#define UCODE_EXPERIMENTAL_TAG "exp"
-
-int __must_check iwl_request_firmware(struct iwl_nic *nic, bool first)
-{
- const struct iwl_cfg *cfg = cfg(nic);
- const char *name_pre = cfg->fw_name_pre;
- char tag[8];
-
- if (first) {
-#ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
- nic->fw_index = UCODE_EXPERIMENTAL_INDEX;
- strcpy(tag, UCODE_EXPERIMENTAL_TAG);
- } else if (nic->fw_index == UCODE_EXPERIMENTAL_INDEX) {
-#endif
- nic->fw_index = cfg->ucode_api_max;
- sprintf(tag, "%d", nic->fw_index);
- } else {
- nic->fw_index--;
- sprintf(tag, "%d", nic->fw_index);
- }
-
- if (nic->fw_index < cfg->ucode_api_min) {
- IWL_ERR(nic, "no suitable firmware found!\n");
- return -ENOENT;
- }
-
- sprintf(nic->firmware_name, "%s%s%s", name_pre, tag, ".ucode");
-
- IWL_DEBUG_INFO(nic, "attempting to load firmware %s'%s'\n",
- (nic->fw_index == UCODE_EXPERIMENTAL_INDEX)
- ? "EXPERIMENTAL " : "",
- nic->firmware_name);
-
- return request_firmware_nowait(THIS_MODULE, 1, nic->firmware_name,
- trans(nic)->dev,
- GFP_KERNEL, nic, iwl_ucode_callback);
-}
-
-struct iwlagn_firmware_pieces {
- const void *inst, *data, *init, *init_data, *wowlan_inst, *wowlan_data;
- size_t inst_size, data_size, init_size, init_data_size,
- wowlan_inst_size, wowlan_data_size;
-
- u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
- u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
-};
-
-static int iwl_parse_v1_v2_firmware(struct iwl_nic *nic,
- const struct firmware *ucode_raw,
- struct iwlagn_firmware_pieces *pieces)
-{
- struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
- u32 api_ver, hdr_size, build;
- char buildstr[25];
- const u8 *src;
-
- nic->fw.ucode_ver = le32_to_cpu(ucode->ver);
- api_ver = IWL_UCODE_API(nic->fw.ucode_ver);
-
- switch (api_ver) {
- default:
- hdr_size = 28;
- if (ucode_raw->size < hdr_size) {
- IWL_ERR(nic, "File size too small!\n");
- return -EINVAL;
- }
- build = le32_to_cpu(ucode->u.v2.build);
- pieces->inst_size = le32_to_cpu(ucode->u.v2.inst_size);
- pieces->data_size = le32_to_cpu(ucode->u.v2.data_size);
- pieces->init_size = le32_to_cpu(ucode->u.v2.init_size);
- pieces->init_data_size = le32_to_cpu(ucode->u.v2.init_data_size);
- src = ucode->u.v2.data;
- break;
- case 0:
- case 1:
- case 2:
- hdr_size = 24;
- if (ucode_raw->size < hdr_size) {
- IWL_ERR(nic, "File size too small!\n");
- return -EINVAL;
- }
- build = 0;
- pieces->inst_size = le32_to_cpu(ucode->u.v1.inst_size);
- pieces->data_size = le32_to_cpu(ucode->u.v1.data_size);
- pieces->init_size = le32_to_cpu(ucode->u.v1.init_size);
- pieces->init_data_size = le32_to_cpu(ucode->u.v1.init_data_size);
- src = ucode->u.v1.data;
- break;
- }
-
- if (build)
- sprintf(buildstr, " build %u%s", build,
- (nic->fw_index == UCODE_EXPERIMENTAL_INDEX)
- ? " (EXP)" : "");
- else
- buildstr[0] = '\0';
-
- snprintf(nic->fw.fw_version,
- sizeof(nic->fw.fw_version),
- "%u.%u.%u.%u%s",
- IWL_UCODE_MAJOR(nic->fw.ucode_ver),
- IWL_UCODE_MINOR(nic->fw.ucode_ver),
- IWL_UCODE_API(nic->fw.ucode_ver),
- IWL_UCODE_SERIAL(nic->fw.ucode_ver),
- buildstr);
-
- /* Verify size of file vs. image size info in file's header */
- if (ucode_raw->size != hdr_size + pieces->inst_size +
- pieces->data_size + pieces->init_size +
- pieces->init_data_size) {
-
- IWL_ERR(nic,
- "uCode file size %d does not match expected size\n",
- (int)ucode_raw->size);
- return -EINVAL;
- }
-
- pieces->inst = src;
- src += pieces->inst_size;
- pieces->data = src;
- src += pieces->data_size;
- pieces->init = src;
- src += pieces->init_size;
- pieces->init_data = src;
- src += pieces->init_data_size;
-
- return 0;
-}
-
-static int iwl_parse_tlv_firmware(struct iwl_nic *nic,
- const struct firmware *ucode_raw,
- struct iwlagn_firmware_pieces *pieces,
- struct iwl_ucode_capabilities *capa)
-{
- struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
- struct iwl_ucode_tlv *tlv;
- size_t len = ucode_raw->size;
- const u8 *data;
- int wanted_alternative = iwlagn_mod_params.wanted_ucode_alternative;
- int tmp;
- u64 alternatives;
- u32 tlv_len;
- enum iwl_ucode_tlv_type tlv_type;
- const u8 *tlv_data;
- char buildstr[25];
- u32 build;
-
- if (len < sizeof(*ucode)) {
- IWL_ERR(nic, "uCode has invalid length: %zd\n", len);
- return -EINVAL;
- }
-
- if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
- IWL_ERR(nic, "invalid uCode magic: 0X%x\n",
- le32_to_cpu(ucode->magic));
- return -EINVAL;
- }
-
- /*
- * Check which alternatives are present, and "downgrade"
- * when the chosen alternative is not present, warning
- * the user when that happens. Some files may not have
- * any alternatives, so don't warn in that case.
- */
- alternatives = le64_to_cpu(ucode->alternatives);
- tmp = wanted_alternative;
- if (wanted_alternative > 63)
- wanted_alternative = 63;
- while (wanted_alternative && !(alternatives & BIT(wanted_alternative)))
- wanted_alternative--;
- if (wanted_alternative && wanted_alternative != tmp)
- IWL_WARN(nic,
- "uCode alternative %d not available, choosing %d\n",
- tmp, wanted_alternative);
-
- nic->fw.ucode_ver = le32_to_cpu(ucode->ver);
- build = le32_to_cpu(ucode->build);
-
- if (build)
- sprintf(buildstr, " build %u%s", build,
- (nic->fw_index == UCODE_EXPERIMENTAL_INDEX)
- ? " (EXP)" : "");
- else
- buildstr[0] = '\0';
-
- snprintf(nic->fw.fw_version,
- sizeof(nic->fw.fw_version),
- "%u.%u.%u.%u%s",
- IWL_UCODE_MAJOR(nic->fw.ucode_ver),
- IWL_UCODE_MINOR(nic->fw.ucode_ver),
- IWL_UCODE_API(nic->fw.ucode_ver),
- IWL_UCODE_SERIAL(nic->fw.ucode_ver),
- buildstr);
-
- data = ucode->data;
-
- len -= sizeof(*ucode);
-
- while (len >= sizeof(*tlv)) {
- u16 tlv_alt;
-
- len -= sizeof(*tlv);
- tlv = (void *)data;
-
- tlv_len = le32_to_cpu(tlv->length);
- tlv_type = le16_to_cpu(tlv->type);
- tlv_alt = le16_to_cpu(tlv->alternative);
- tlv_data = tlv->data;
-
- if (len < tlv_len) {
- IWL_ERR(nic, "invalid TLV len: %zd/%u\n",
- len, tlv_len);
- return -EINVAL;
- }
- len -= ALIGN(tlv_len, 4);
- data += sizeof(*tlv) + ALIGN(tlv_len, 4);
-
- /*
- * Alternative 0 is always valid.
- *
- * Skip alternative TLVs that are not selected.
- */
- if (tlv_alt != 0 && tlv_alt != wanted_alternative)
- continue;
-
- switch (tlv_type) {
- case IWL_UCODE_TLV_INST:
- pieces->inst = tlv_data;
- pieces->inst_size = tlv_len;
- break;
- case IWL_UCODE_TLV_DATA:
- pieces->data = tlv_data;
- pieces->data_size = tlv_len;
- break;
- case IWL_UCODE_TLV_INIT:
- pieces->init = tlv_data;
- pieces->init_size = tlv_len;
- break;
- case IWL_UCODE_TLV_INIT_DATA:
- pieces->init_data = tlv_data;
- pieces->init_data_size = tlv_len;
- break;
- case IWL_UCODE_TLV_BOOT:
- IWL_ERR(nic, "Found unexpected BOOT ucode\n");
- break;
- case IWL_UCODE_TLV_PROBE_MAX_LEN:
- if (tlv_len != sizeof(u32))
- goto invalid_tlv_len;
- capa->max_probe_length =
- le32_to_cpup((__le32 *)tlv_data);
- break;
- case IWL_UCODE_TLV_PAN:
- if (tlv_len)
- goto invalid_tlv_len;
- capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
- break;
- case IWL_UCODE_TLV_FLAGS:
- /* must be at least one u32 */
- if (tlv_len < sizeof(u32))
- goto invalid_tlv_len;
- /* and a proper number of u32s */
- if (tlv_len % sizeof(u32))
- goto invalid_tlv_len;
- /*
- * This driver only reads the first u32 as
- * right now no more features are defined,
- * if that changes then either the driver
- * will not work with the new firmware, or
- * it'll not take advantage of new features.
- */
- capa->flags = le32_to_cpup((__le32 *)tlv_data);
- break;
- case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
- if (tlv_len != sizeof(u32))
- goto invalid_tlv_len;
- pieces->init_evtlog_ptr =
- le32_to_cpup((__le32 *)tlv_data);
- break;
- case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
- if (tlv_len != sizeof(u32))
- goto invalid_tlv_len;
- pieces->init_evtlog_size =
- le32_to_cpup((__le32 *)tlv_data);
- break;
- case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
- if (tlv_len != sizeof(u32))
- goto invalid_tlv_len;
- pieces->init_errlog_ptr =
- le32_to_cpup((__le32 *)tlv_data);
- break;
- case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
- if (tlv_len != sizeof(u32))
- goto invalid_tlv_len;
- pieces->inst_evtlog_ptr =
- le32_to_cpup((__le32 *)tlv_data);
- break;
- case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
- if (tlv_len != sizeof(u32))
- goto invalid_tlv_len;
- pieces->inst_evtlog_size =
- le32_to_cpup((__le32 *)tlv_data);
- break;
- case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
- if (tlv_len != sizeof(u32))
- goto invalid_tlv_len;
- pieces->inst_errlog_ptr =
- le32_to_cpup((__le32 *)tlv_data);
- break;
- case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
- if (tlv_len)
- goto invalid_tlv_len;
- nic->fw.enhance_sensitivity_table = true;
- break;
- case IWL_UCODE_TLV_WOWLAN_INST:
- pieces->wowlan_inst = tlv_data;
- pieces->wowlan_inst_size = tlv_len;
- break;
- case IWL_UCODE_TLV_WOWLAN_DATA:
- pieces->wowlan_data = tlv_data;
- pieces->wowlan_data_size = tlv_len;
- break;
- case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
- if (tlv_len != sizeof(u32))
- goto invalid_tlv_len;
- capa->standard_phy_calibration_size =
- le32_to_cpup((__le32 *)tlv_data);
- break;
- default:
- IWL_DEBUG_INFO(nic, "unknown TLV: %d\n", tlv_type);
- break;
- }
- }
-
- if (len) {
- IWL_ERR(nic, "invalid TLV after parsing: %zd\n", len);
- iwl_print_hex_dump(nic, IWL_DL_FW, (u8 *)data, len);
- return -EINVAL;
- }
-
- return 0;
-
- invalid_tlv_len:
- IWL_ERR(nic, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
- iwl_print_hex_dump(nic, IWL_DL_FW, tlv_data, tlv_len);
-
- return -EINVAL;
-}
-
-/**
- * iwl_ucode_callback - callback when firmware was loaded
- *
- * If loaded successfully, copies the firmware into buffers
- * for the card to fetch (via DMA).
- */
-static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
-{
- struct iwl_nic *nic = context;
- const struct iwl_cfg *cfg = cfg(nic);
- struct iwl_fw *fw = &nic->fw;
- struct iwl_ucode_header *ucode;
- int err;
- struct iwlagn_firmware_pieces pieces;
- const unsigned int api_max = cfg->ucode_api_max;
- unsigned int api_ok = cfg->ucode_api_ok;
- const unsigned int api_min = cfg->ucode_api_min;
- u32 api_ver;
-
- fw->ucode_capa.max_probe_length = 200;
- fw->ucode_capa.standard_phy_calibration_size =
- IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
-
- if (!api_ok)
- api_ok = api_max;
-
- memset(&pieces, 0, sizeof(pieces));
-
- if (!ucode_raw) {
- if (nic->fw_index <= api_ok)
- IWL_ERR(nic,
- "request for firmware file '%s' failed.\n",
- nic->firmware_name);
- goto try_again;
- }
-
- IWL_DEBUG_INFO(nic, "Loaded firmware file '%s' (%zd bytes).\n",
- nic->firmware_name, ucode_raw->size);
-
- /* Make sure that we got at least the API version number */
- if (ucode_raw->size < 4) {
- IWL_ERR(nic, "File size way too small!\n");
- goto try_again;
- }
-
- /* Data from ucode file: header followed by uCode images */
- ucode = (struct iwl_ucode_header *)ucode_raw->data;
-
- if (ucode->ver)
- err = iwl_parse_v1_v2_firmware(nic, ucode_raw, &pieces);
- else
- err = iwl_parse_tlv_firmware(nic, ucode_raw, &pieces,
- &fw->ucode_capa);
-
- if (err)
- goto try_again;
-
- api_ver = IWL_UCODE_API(nic->fw.ucode_ver);
-
- /*
- * api_ver should match the api version forming part of the
- * firmware filename ... but we don't check for that and only rely
- * on the API version read from firmware header from here on forward
- */
- /* no api version check required for experimental uCode */
- if (nic->fw_index != UCODE_EXPERIMENTAL_INDEX) {
- if (api_ver < api_min || api_ver > api_max) {
- IWL_ERR(nic,
- "Driver unable to support your firmware API. "
- "Driver supports v%u, firmware is v%u.\n",
- api_max, api_ver);
- goto try_again;
- }
-
- if (api_ver < api_ok) {
- if (api_ok != api_max)
- IWL_ERR(nic, "Firmware has old API version, "
- "expected v%u through v%u, got v%u.\n",
- api_ok, api_max, api_ver);
- else
- IWL_ERR(nic, "Firmware has old API version, "
- "expected v%u, got v%u.\n",
- api_max, api_ver);
- IWL_ERR(nic, "New firmware can be obtained from "
- "http://www.intellinuxwireless.org/.\n");
- }
- }
-
- IWL_INFO(nic, "loaded firmware version %s", nic->fw.fw_version);
-
- /*
- * For any of the failures below (before allocating pci memory)
- * we will try to load a version with a smaller API -- maybe the
- * user just got a corrupted version of the latest API.
- */
-
- IWL_DEBUG_INFO(nic, "f/w package hdr ucode version raw = 0x%x\n",
- nic->fw.ucode_ver);
- IWL_DEBUG_INFO(nic, "f/w package hdr runtime inst size = %Zd\n",
- pieces.inst_size);
- IWL_DEBUG_INFO(nic, "f/w package hdr runtime data size = %Zd\n",
- pieces.data_size);
- IWL_DEBUG_INFO(nic, "f/w package hdr init inst size = %Zd\n",
- pieces.init_size);
- IWL_DEBUG_INFO(nic, "f/w package hdr init data size = %Zd\n",
- pieces.init_data_size);
-
- /* Verify that uCode images will fit in card's SRAM */
- if (pieces.inst_size > cfg->max_inst_size) {
- IWL_ERR(nic, "uCode instr len %Zd too large to fit in\n",
- pieces.inst_size);
- goto try_again;
- }
-
- if (pieces.data_size > cfg->max_data_size) {
- IWL_ERR(nic, "uCode data len %Zd too large to fit in\n",
- pieces.data_size);
- goto try_again;
- }
-
- if (pieces.init_size > cfg->max_inst_size) {
- IWL_ERR(nic, "uCode init instr len %Zd too large to fit in\n",
- pieces.init_size);
- goto try_again;
- }
-
- if (pieces.init_data_size > cfg->max_data_size) {
- IWL_ERR(nic, "uCode init data len %Zd too large to fit in\n",
- pieces.init_data_size);
- goto try_again;
- }
-
- /* Allocate ucode buffers for card's bus-master loading ... */
-
- /* Runtime instructions and 2 copies of data:
- * 1) unmodified from disk
- * 2) backup cache for save/restore during power-downs */
- if (iwl_alloc_fw_desc(nic, &nic->fw.ucode_rt.code,
- pieces.inst, pieces.inst_size))
- goto err_pci_alloc;
- if (iwl_alloc_fw_desc(nic, &nic->fw.ucode_rt.data,
- pieces.data, pieces.data_size))
- goto err_pci_alloc;
-
- /* Initialization instructions and data */
- if (pieces.init_size && pieces.init_data_size) {
- if (iwl_alloc_fw_desc(nic,
- &nic->fw.ucode_init.code,
- pieces.init, pieces.init_size))
- goto err_pci_alloc;
- if (iwl_alloc_fw_desc(nic,
- &nic->fw.ucode_init.data,
- pieces.init_data, pieces.init_data_size))
- goto err_pci_alloc;
- }
-
- /* WoWLAN instructions and data */
- if (pieces.wowlan_inst_size && pieces.wowlan_data_size) {
- if (iwl_alloc_fw_desc(nic,
- &nic->fw.ucode_wowlan.code,
- pieces.wowlan_inst,
- pieces.wowlan_inst_size))
- goto err_pci_alloc;
- if (iwl_alloc_fw_desc(nic,
- &nic->fw.ucode_wowlan.data,
- pieces.wowlan_data,
- pieces.wowlan_data_size))
- goto err_pci_alloc;
- }
-
- /* Now that we can no longer fail, copy information */
-
- /*
- * The (size - 16) / 12 formula is based on the information recorded
- * for each event, which is of mode 1 (including timestamp) for all
- * new microcodes that include this information.
- */
- nic->init_evtlog_ptr = pieces.init_evtlog_ptr;
- if (pieces.init_evtlog_size)
- nic->init_evtlog_size = (pieces.init_evtlog_size - 16)/12;
- else
- nic->init_evtlog_size =
- cfg->base_params->max_event_log_size;
- nic->init_errlog_ptr = pieces.init_errlog_ptr;
- nic->inst_evtlog_ptr = pieces.inst_evtlog_ptr;
- if (pieces.inst_evtlog_size)
- nic->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12;
- else
- nic->inst_evtlog_size =
- cfg->base_params->max_event_log_size;
- nic->inst_errlog_ptr = pieces.inst_errlog_ptr;
-
- /*
- * figure out the offset of chain noise reset and gain commands
- * base on the size of standard phy calibration commands table size
- */
- if (fw->ucode_capa.standard_phy_calibration_size >
- IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
- fw->ucode_capa.standard_phy_calibration_size =
- IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
-
- /* We have our copies now, allow OS release its copies */
- release_firmware(ucode_raw);
- complete(&nic->request_firmware_complete);
-
- nic->op_mode = iwl_dvm_ops.start(nic->shrd->trans);
-
- if (!nic->op_mode)
- goto out_unbind;
-
- return;
-
- try_again:
- /* try next, if any */
- release_firmware(ucode_raw);
- if (iwl_request_firmware(nic, false))
- goto out_unbind;
- return;
-
- err_pci_alloc:
- IWL_ERR(nic, "failed to allocate pci memory\n");
- iwl_dealloc_ucode(nic);
- release_firmware(ucode_raw);
- out_unbind:
- complete(&nic->request_firmware_complete);
- device_release_driver(trans(nic)->dev);
-}
-
#include "iwl-shared.h"
#include "iwl-ucode.h"
-#define UCODE_EXPERIMENTAL_INDEX 100
-
/**
* struct iwl_nic - nic common data
* @fw: the iwl_fw structure
};
-int __must_check iwl_request_firmware(struct iwl_nic *nic, bool first);
-void iwl_dealloc_ucode(struct iwl_nic *nic);
-
int iwl_send_bt_env(struct iwl_trans *trans, u8 action, u8 type);
void iwl_send_prio_tbl(struct iwl_trans *trans);
int iwl_init_alive_start(struct iwl_trans *trans);
projects / platform / kernel / linux-3.10.git / commitdiff