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iwlwifi: change struct iwl_fw 

Change iwl_fw struct to hold an array of fw_img instead of
three separated instances.

Change fw_img to hold an array of fw_desc instead of two
separate descriptors for instructions and data.

Change load_given_ucode, load_section, verification functions
etc. to support this structure.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
David Spinadel 2012-03-10 13:00:14 -08:00 committed by John W. Linville
parent ed8c8365c4
commit 6dfa8d019c
7 changed files with 139 additions and 141 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/net/wireless/iwlwifi/iwl-debugfs.c
View File

@ -230,6 +230,7 @@ static ssize_t iwl_dbgfs_sram_read(struct file *file,
int pos = 0;
int sram;
struct iwl_priv *priv = file->private_data;
const struct fw_img *img;
size_t bufsz;
/* default is to dump the entire data segment */
@ -239,17 +240,8 @@ static ssize_t iwl_dbgfs_sram_read(struct file *file,
IWL_ERR(priv, "No uCode has been loadded.\n");
return -EINVAL;
}
if (priv->shrd->ucode_type == IWL_UCODE_INIT) {
priv->dbgfs_sram_len = priv->fw->ucode_init.data.len;
} else if (priv->shrd->ucode_type == IWL_UCODE_REGULAR) {
priv->dbgfs_sram_len = priv->fw->ucode_rt.data.len;
} else if (priv->shrd->ucode_type == IWL_UCODE_WOWLAN) {
priv->dbgfs_sram_len = priv->fw->ucode_wowlan.data.len;
} else {
IWL_ERR(priv, "Unsupported type of uCode loaded?"
" that shouldn't happen.\n");
return -EINVAL;
}
img = &priv->fw->img[priv->shrd->ucode_type];
priv->dbgfs_sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
}
len = priv->dbgfs_sram_len;
@ -346,13 +338,14 @@ static ssize_t iwl_dbgfs_wowlan_sram_read(struct file *file,
size_t count, loff_t *ppos)
{
struct iwl_priv *priv = file->private_data;
const struct fw_img *img = &priv->fw->img[IWL_UCODE_WOWLAN];
if (!priv->wowlan_sram)
return -ENODATA;
return simple_read_from_buffer(user_buf, count, ppos,
priv->wowlan_sram,
priv->fw->ucode_wowlan.data.len);
img->sec[IWL_UCODE_SECTION_DATA].len);
}
static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)

141
drivers/net/wireless/iwlwifi/iwl-drv.c
View File

@ -118,15 +118,16 @@ static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
{
iwl_free_fw_desc(drv, &img->code);
iwl_free_fw_desc(drv, &img->data);
int i;
for (i = 0; i < IWL_UCODE_SECTION_MAX; i++)
iwl_free_fw_desc(drv, &img->sec[i]);
}
static void iwl_dealloc_ucode(struct iwl_drv *drv)
{
iwl_free_fw_img(drv, &drv->fw.ucode_rt);
iwl_free_fw_img(drv, &drv->fw.ucode_init);
iwl_free_fw_img(drv, &drv->fw.ucode_wowlan);
int i;
for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
iwl_free_fw_img(drv, drv->fw.img + i);
}
static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
@ -189,22 +190,8 @@ static int iwl_request_firmware(struct iwl_drv *drv, bool first)
GFP_KERNEL, drv, iwl_ucode_callback);
}
/*
* enumeration of ucode section.
* This enumeration is used for legacy tlv style (before 16.0 uCode).
*/
enum iwl_ucode_sec {
IWL_UCODE_SECTION_INST,
IWL_UCODE_SECTION_DATA,
};
/*
* For 16.0 uCode and above, there is no differentiation between section,
* just an offset to the HW address.
*/
#define UCODE_SECTION_MAX 4
struct fw_img_parsing {
struct fw_sec sec[UCODE_SECTION_MAX];
struct fw_sec sec[IWL_UCODE_SECTION_MAX];
int sec_counter;
};
@ -691,6 +678,71 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
return -EINVAL;
}
static int alloc_pci_desc(struct iwl_drv *drv,
struct iwl_firmware_pieces *pieces,
enum iwl_ucode_type type)
{
int i;
for (i = 0;
i < IWL_UCODE_SECTION_MAX && get_sec_size(pieces, type, i);
i++)
if (iwl_alloc_fw_desc(drv, &(drv->fw.img[type].sec[i]),
get_sec(pieces, type, i)))
return -1;
return 0;
}
static int validate_sec_sizes(struct iwl_drv *drv,
struct iwl_firmware_pieces *pieces,
const struct iwl_cfg *cfg)
{
IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %Zd\n",
get_sec_size(pieces, IWL_UCODE_REGULAR,
IWL_UCODE_SECTION_INST));
IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %Zd\n",
get_sec_size(pieces, IWL_UCODE_REGULAR,
IWL_UCODE_SECTION_DATA));
IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %Zd\n",
get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %Zd\n",
get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
/* Verify that uCode images will fit in card's SRAM. */
if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
cfg->max_inst_size) {
IWL_ERR(drv, "uCode instr len %Zd too large to fit in\n",
get_sec_size(pieces, IWL_UCODE_REGULAR,
IWL_UCODE_SECTION_INST));
return -1;
}
if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
cfg->max_data_size) {
IWL_ERR(drv, "uCode data len %Zd too large to fit in\n",
get_sec_size(pieces, IWL_UCODE_REGULAR,
IWL_UCODE_SECTION_DATA));
return -1;
}
if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
cfg->max_inst_size) {
IWL_ERR(drv, "uCode init instr len %Zd too large to fit in\n",
get_sec_size(pieces, IWL_UCODE_INIT,
IWL_UCODE_SECTION_INST));
return -1;
}
if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
cfg->max_data_size) {
IWL_ERR(drv, "uCode init data len %Zd too large to fit in\n",
get_sec_size(pieces, IWL_UCODE_REGULAR,
IWL_UCODE_SECTION_DATA));
return -1;
}
return 0;
}
/**
* iwl_ucode_callback - callback when firmware was loaded
*
@ -709,6 +761,7 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
unsigned int api_ok = cfg->ucode_api_ok;
const unsigned int api_min = cfg->ucode_api_min;
u32 api_ver;
int i;
fw->ucode_capa.max_probe_length = 200;
fw->ucode_capa.standard_phy_calibration_size =
@ -817,59 +870,17 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
goto try_again;
}
if (get_sec_size(&pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
cfg->max_inst_size) {
IWL_ERR(drv, "uCode init instr len %Zd too large to fit in\n",
get_sec_size(&pieces, IWL_UCODE_INIT,
IWL_UCODE_SECTION_INST));
if (validate_sec_sizes(drv, &pieces, cfg))
goto try_again;
}
if (get_sec_size(&pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
cfg->max_data_size) {
IWL_ERR(drv, "uCode init data len %Zd too large to fit in\n",
get_sec_size(&pieces, IWL_UCODE_REGULAR,
IWL_UCODE_SECTION_DATA));
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(drv, &drv->fw.ucode_rt.code,
get_sec(&pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST)))
goto err_pci_alloc;
if (iwl_alloc_fw_desc(drv, &drv->fw.ucode_rt.data,
get_sec(&pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA)))
goto err_pci_alloc;
/* Initialization instructions and data */
if (get_sec_size(&pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) &&
get_sec_size(&pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
if (iwl_alloc_fw_desc(drv, &drv->fw.ucode_init.code,
get_sec(&pieces, IWL_UCODE_INIT,
IWL_UCODE_SECTION_INST)))
for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
if (alloc_pci_desc(drv, &pieces, i))
goto err_pci_alloc;
if (iwl_alloc_fw_desc(drv, &drv->fw.ucode_init.data,
get_sec(&pieces, IWL_UCODE_INIT,
IWL_UCODE_SECTION_DATA)))
goto err_pci_alloc;
}
/* WoWLAN instructions and data */
if (get_sec_size(&pieces, IWL_UCODE_WOWLAN, IWL_UCODE_SECTION_INST) &&
get_sec_size(&pieces, IWL_UCODE_WOWLAN, IWL_UCODE_SECTION_DATA)) {
if (iwl_alloc_fw_desc(drv, &drv->fw.ucode_wowlan.code,
get_sec(&pieces, IWL_UCODE_WOWLAN,
IWL_UCODE_SECTION_INST)))
goto err_pci_alloc;
if (iwl_alloc_fw_desc(drv, &drv->fw.ucode_wowlan.data,
get_sec(&pieces, IWL_UCODE_WOWLAN,
IWL_UCODE_SECTION_DATA)))
goto err_pci_alloc;
}
/* Now that we can no longer fail, copy information */

25
drivers/net/wireless/iwlwifi/iwl-fw.h
View File

@ -101,6 +101,20 @@ enum iwl_ucode_type {
IWL_UCODE_TYPE_MAX,
};
/*
* enumeration of ucode section.
* This enumeration is used for legacy tlv style (before 16.0 uCode).
*/
enum iwl_ucode_sec {
IWL_UCODE_SECTION_INST,
IWL_UCODE_SECTION_DATA,
};
/*
* For 16.0 uCode and above, there is no differentiation between sections,
* just an offset to the HW address.
*/
#define IWL_UCODE_SECTION_MAX 4
struct iwl_ucode_capabilities {
u32 max_probe_length;
u32 standard_phy_calibration_size;
@ -116,8 +130,7 @@ struct fw_desc {
};
struct fw_img {
struct fw_desc code; /* firmware code image */
struct fw_desc data; /* firmware data image */
struct fw_desc sec[IWL_UCODE_SECTION_MAX];
};
/* uCode version contains 4 values: Major/Minor/API/Serial */
@ -131,9 +144,7 @@ struct fw_img {
*
* @ucode_ver: ucode version from the ucode file
* @fw_version: firmware version string
* @ucode_rt: run time ucode image
* @ucode_init: init ucode image
* @ucode_wowlan: wake on wireless ucode image (optional)
* @img: ucode image like ucode_rt, ucode_init, ucode_wowlan.
* @ucode_capa: capabilities parsed from the ucode file.
* @enhance_sensitivity_table: device can do enhanced sensitivity.
* @init_evtlog_ptr: event log offset for init ucode.
@ -149,9 +160,7 @@ struct iwl_fw {
char fw_version[ETHTOOL_BUSINFO_LEN];
/* ucode images */
struct fw_img ucode_rt;
struct fw_img ucode_init;
struct fw_img ucode_wowlan;
struct fw_img img[IWL_UCODE_TYPE_MAX];
struct iwl_ucode_capabilities ucode_capa;
bool enhance_sensitivity_table;

15
drivers/net/wireless/iwlwifi/iwl-mac80211.c
View File

@ -196,7 +196,7 @@ int iwlagn_mac_setup_register(struct iwl_priv *priv,
WIPHY_FLAG_DISABLE_BEACON_HINTS |
WIPHY_FLAG_IBSS_RSN;
if (priv->fw->ucode_wowlan.code.len &&
if (priv->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
trans(priv)->ops->wowlan_suspend &&
device_can_wakeup(trans(priv)->dev)) {
hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
@ -437,6 +437,7 @@ static int iwlagn_mac_resume(struct ieee80211_hw *hw)
unsigned long flags;
u32 base, status = 0xffffffff;
int ret = -EIO;
const struct fw_img *img;
IWL_DEBUG_MAC80211(priv, "enter\n");
mutex_lock(&priv->mutex);
@ -457,16 +458,18 @@ static int iwlagn_mac_resume(struct ieee80211_hw *hw)
#ifdef CONFIG_IWLWIFI_DEBUGFS
if (ret == 0) {
if (!priv->wowlan_sram)
img = &(priv->fw->img[IWL_UCODE_WOWLAN]);
if (!priv->wowlan_sram) {
priv->wowlan_sram =
kzalloc(priv->fw->ucode_wowlan.data.len,
kzalloc(img->sec[IWL_UCODE_SECTION_DATA].len,
GFP_KERNEL);
}
if (priv->wowlan_sram)
_iwl_read_targ_mem_words(
trans(priv), 0x800000,
priv->wowlan_sram,
priv->fw->ucode_wowlan.data.len / 4);
trans(priv), 0x800000,
priv->wowlan_sram,
img->sec[IWL_UCODE_SECTION_DATA].len / 4);
}
#endif
}

21
drivers/net/wireless/iwlwifi/iwl-testmode.c
View File

@ -466,6 +466,7 @@ static int iwl_testmode_driver(struct ieee80211_hw *hw, struct nlattr **tb)
unsigned char *rsp_data_ptr = NULL;
int status = 0, rsp_data_len = 0;
u32 devid, inst_size = 0, data_size = 0;
const struct fw_img *img;
switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) {
case IWL_TM_CMD_APP2DEV_GET_DEVICENAME:
@ -597,23 +598,9 @@ static int iwl_testmode_driver(struct ieee80211_hw *hw, struct nlattr **tb)
IWL_ERR(priv, "No uCode has not been loaded\n");
return -EINVAL;
} else {
switch (priv->shrd->ucode_type) {
case IWL_UCODE_REGULAR:
inst_size = priv->fw->ucode_rt.code.len;
data_size = priv->fw->ucode_rt.data.len;
break;
case IWL_UCODE_INIT:
inst_size = priv->fw->ucode_init.code.len;
data_size = priv->fw->ucode_init.data.len;
break;
case IWL_UCODE_WOWLAN:
inst_size = priv->fw->ucode_wowlan.code.len;
data_size = priv->fw->ucode_wowlan.data.len;
break;
default:
IWL_ERR(priv, "Unsupported uCode type\n");
break;
}
img = &priv->fw->img[priv->shrd->ucode_type];
inst_size = img->sec[IWL_UCODE_SECTION_INST].len;
data_size = img->sec[IWL_UCODE_SECTION_DATA].len;
}
NLA_PUT_U32(skb, IWL_TM_ATTR_FW_TYPE, priv->shrd->ucode_type);
NLA_PUT_U32(skb, IWL_TM_ATTR_FW_INST_SIZE, inst_size);

32
drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
View File

@ -951,12 +951,13 @@ static const u8 iwlagn_pan_ac_to_queue[] = {
/*
* ucode
*/
static int iwl_load_section(struct iwl_trans *trans, const char *name,
const struct fw_desc *image, u32 dst_addr)
static int iwl_load_section(struct iwl_trans *trans, u8 section_num,
const struct fw_desc *section)
{
struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
dma_addr_t phy_addr = image->p_addr;
u32 byte_cnt = image->len;
dma_addr_t phy_addr = section->p_addr;
u32 byte_cnt = section->len;
u32 dst_addr = section->offset;
int ret;
trans_pcie->ucode_write_complete = false;
@ -989,12 +990,13 @@ static int iwl_load_section(struct iwl_trans *trans, const char *name,
FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE |
FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD);
IWL_DEBUG_FW(trans, "%s uCode section being loaded...\n", name);
IWL_DEBUG_FW(trans, "[%d] uCode section being loaded...\n",
section_num);
ret = wait_event_timeout(trans_pcie->ucode_write_waitq,
trans_pcie->ucode_write_complete, 5 * HZ);
if (!ret) {
IWL_ERR(trans, "Could not load the %s uCode section\n",
name);
IWL_ERR(trans, "Could not load the [%d] uCode section\n",
section_num);
return -ETIMEDOUT;
}
@ -1005,16 +1007,16 @@ static int iwl_load_given_ucode(struct iwl_trans *trans,
const struct fw_img *image)
{
int ret = 0;
int i;
ret = iwl_load_section(trans, "INST", &image->code,
IWLAGN_RTC_INST_LOWER_BOUND);
if (ret)
return ret;
for (i = 0; i < IWL_UCODE_SECTION_MAX; i++) {
if (!image->sec[i].p_addr)
break;
ret = iwl_load_section(trans, "DATA", &image->data,
IWLAGN_RTC_DATA_LOWER_BOUND);
if (ret)
return ret;
ret = iwl_load_section(trans, i, &image->sec[i]);
if (ret)
return ret;
}
/* Remove all resets to allow NIC to operate */
iwl_write32(trans, CSR_RESET, 0);

29
drivers/net/wireless/iwlwifi/iwl-ucode.c
View File

@ -80,17 +80,10 @@ static struct iwl_wimax_coex_event_entry cu_priorities[COEX_NUM_OF_EVENTS] = {
static inline const struct fw_img *
iwl_get_ucode_image(struct iwl_priv *priv, enum iwl_ucode_type ucode_type)
{
switch (ucode_type) {
case IWL_UCODE_INIT:
return &priv->fw->ucode_init;
case IWL_UCODE_WOWLAN:
return &priv->fw->ucode_wowlan;
case IWL_UCODE_REGULAR:
return &priv->fw->ucode_rt;
default:
break;
}
return NULL;
if (ucode_type >= IWL_UCODE_TYPE_MAX)
return NULL;
return &priv->fw->img[ucode_type];
}
/*
@ -342,7 +335,7 @@ static int iwl_alive_notify(struct iwl_priv *priv)
* using sample data 100 bytes apart. If these sample points are good,
* it's a pretty good bet that everything between them is good, too.
*/
static int iwl_verify_inst_sparse(struct iwl_priv *priv,
static int iwl_verify_sec_sparse(struct iwl_priv *priv,
const struct fw_desc *fw_desc)
{
__le32 *image = (__le32 *)fw_desc->v_addr;
@ -357,7 +350,7 @@ static int iwl_verify_inst_sparse(struct iwl_priv *priv,
/* NOTE: Use the debugless read so we don't flood kernel log
* if IWL_DL_IO is set */
iwl_write_direct32(trans(priv), HBUS_TARG_MEM_RADDR,
i + IWLAGN_RTC_INST_LOWER_BOUND);
i + fw_desc->offset);
val = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
if (val != le32_to_cpu(*image))
return -EIO;
@ -366,7 +359,7 @@ static int iwl_verify_inst_sparse(struct iwl_priv *priv,
return 0;
}
static void iwl_print_mismatch_inst(struct iwl_priv *priv,
static void iwl_print_mismatch_sec(struct iwl_priv *priv,
const struct fw_desc *fw_desc)
{
__le32 *image = (__le32 *)fw_desc->v_addr;
@ -378,7 +371,7 @@ static void iwl_print_mismatch_inst(struct iwl_priv *priv,
IWL_DEBUG_FW(priv, "ucode inst image size is %u\n", len);
iwl_write_direct32(trans(priv), HBUS_TARG_MEM_RADDR,
IWLAGN_RTC_INST_LOWER_BOUND);
fw_desc->offset);
for (offs = 0;
offs < len && errors < 20;
@ -408,14 +401,14 @@ static int iwl_verify_ucode(struct iwl_priv *priv,
return -EINVAL;
}
if (!iwl_verify_inst_sparse(priv, &img->code)) {
if (!iwl_verify_sec_sparse(priv, &img->sec[IWL_UCODE_SECTION_INST])) {
IWL_DEBUG_FW(priv, "uCode is good in inst SRAM\n");
return 0;
}
IWL_ERR(priv, "UCODE IMAGE IN INSTRUCTION SRAM NOT VALID!!\n");
iwl_print_mismatch_inst(priv, &img->code);
iwl_print_mismatch_sec(priv, &img->sec[IWL_UCODE_SECTION_INST]);
return -EIO;
}
@ -534,7 +527,7 @@ int iwl_run_init_ucode(struct iwl_priv *priv)
lockdep_assert_held(&priv->mutex);
/* No init ucode required? Curious, but maybe ok */
if (!priv->fw->ucode_init.code.len)
if (!priv->fw->img[IWL_UCODE_INIT].sec[0].len)
return 0;
if (priv->init_ucode_run)