diff options
Diffstat (limited to 'drivers/staging/rtl8192e/r819xE_firmware.c')
| -rw-r--r-- | drivers/staging/rtl8192e/r819xE_firmware.c | 351 |
1 files changed, 0 insertions, 351 deletions
diff --git a/drivers/staging/rtl8192e/r819xE_firmware.c b/drivers/staging/rtl8192e/r819xE_firmware.c deleted file mode 100644 index d9e8b5a08904..000000000000 --- a/drivers/staging/rtl8192e/r819xE_firmware.c +++ /dev/null @@ -1,351 +0,0 @@ -/* - * Procedure: Init boot code/firmware code/data session - * - * Description: This routine will initialize firmware. If any error occurs - * during the initialization process, the routine shall terminate - * immediately and return fail. - */ - -#include "r8192E.h" -#include "r8192E_hw.h" - -#include <linux/firmware.h> - -/* It should be double word alignment */ -#define GET_COMMAND_PACKET_FRAG_THRESHOLD(v) (4 * (v / 4) - 8) - -enum firmware_init_step { - FW_INIT_STEP0_BOOT = 0, - FW_INIT_STEP1_MAIN = 1, - FW_INIT_STEP2_DATA = 2, -}; - -enum opt_rst_type { - OPT_SYSTEM_RESET = 0, - OPT_FIRMWARE_RESET = 1, -}; - -void firmware_init_param(struct r8192_priv *priv) -{ - rt_firmware *pfirmware = priv->pFirmware; - - pfirmware->cmdpacket_frag_thresold = - GET_COMMAND_PACKET_FRAG_THRESHOLD(MAX_TRANSMIT_BUFFER_SIZE); -} - -/* - * segment the img and use the ptr and length to remember info on each segment - */ -static bool fw_download_code(struct r8192_priv *priv, u8 *code_virtual_address, - u32 buffer_len) -{ - bool rt_status = true; - u16 frag_threshold; - u16 frag_length, frag_offset = 0; - int i; - - rt_firmware *pfirmware = priv->pFirmware; - struct sk_buff *skb; - unsigned char *seg_ptr; - cb_desc *tcb_desc; - u8 bLastIniPkt; - - firmware_init_param(priv); - - /* Fragmentation might be required */ - frag_threshold = pfirmware->cmdpacket_frag_thresold; - do { - if ((buffer_len - frag_offset) > frag_threshold) { - frag_length = frag_threshold ; - bLastIniPkt = 0; - } else { - frag_length = buffer_len - frag_offset; - bLastIniPkt = 1; - } - - /* - * Allocate skb buffer to contain firmware info and tx - * descriptor info add 4 to avoid packet appending overflow. - */ - skb = dev_alloc_skb(frag_length + 4); - tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); - tcb_desc->queue_index = TXCMD_QUEUE; - tcb_desc->bCmdOrInit = DESC_PACKET_TYPE_INIT; - tcb_desc->bLastIniPkt = bLastIniPkt; - - seg_ptr = skb->data; - - /* - * Transform from little endian to big endian and pending zero - */ - for (i = 0; i < frag_length; i += 4) { - *seg_ptr++ = ((i+0) < frag_length) ? - code_virtual_address[i+3] : 0; - - *seg_ptr++ = ((i+1) < frag_length) ? - code_virtual_address[i+2] : 0; - - *seg_ptr++ = ((i+2) < frag_length) ? - code_virtual_address[i+1] : 0; - - *seg_ptr++ = ((i+3) < frag_length) ? - code_virtual_address[i+0] : 0; - } - tcb_desc->txbuf_size = (u16)i; - skb_put(skb, i); - priv->ieee80211->softmac_hard_start_xmit(skb, priv->ieee80211); - - code_virtual_address += frag_length; - frag_offset += frag_length; - - } while (frag_offset < buffer_len); - - return rt_status; -} - -/* - * Check whether main code is download OK. If OK, turn on CPU - * - * CPU register locates in different page against general - * register. Switch to CPU register in the begin and switch - * back before return - */ -static bool CPUcheck_maincodeok_turnonCPU(struct r8192_priv *priv) -{ - unsigned long timeout; - bool rt_status = true; - u32 CPU_status = 0; - - /* Check whether put code OK */ - timeout = jiffies + msecs_to_jiffies(20); - while (time_before(jiffies, timeout)) { - CPU_status = read_nic_dword(priv, CPU_GEN); - - if (CPU_status & CPU_GEN_PUT_CODE_OK) - break; - msleep(2); - } - - if (!(CPU_status & CPU_GEN_PUT_CODE_OK)) { - RT_TRACE(COMP_ERR, "Download Firmware: Put code fail!\n"); - goto CPUCheckMainCodeOKAndTurnOnCPU_Fail; - } else { - RT_TRACE(COMP_FIRMWARE, "Download Firmware: Put code ok!\n"); - } - - /* Turn On CPU */ - CPU_status = read_nic_dword(priv, CPU_GEN); - write_nic_byte(priv, CPU_GEN, - (u8)((CPU_status | CPU_GEN_PWR_STB_CPU) & 0xff)); - mdelay(1); - - /* Check whether CPU boot OK */ - timeout = jiffies + msecs_to_jiffies(20); - while (time_before(jiffies, timeout)) { - CPU_status = read_nic_dword(priv, CPU_GEN); - - if (CPU_status & CPU_GEN_BOOT_RDY) - break; - msleep(2); - } - - if (!(CPU_status & CPU_GEN_BOOT_RDY)) - goto CPUCheckMainCodeOKAndTurnOnCPU_Fail; - else - RT_TRACE(COMP_FIRMWARE, "Download Firmware: Boot ready!\n"); - - return rt_status; - -CPUCheckMainCodeOKAndTurnOnCPU_Fail: - RT_TRACE(COMP_ERR, "ERR in %s()\n", __func__); - rt_status = FALSE; - return rt_status; -} - -static bool CPUcheck_firmware_ready(struct r8192_priv *priv) -{ - unsigned long timeout; - bool rt_status = true; - u32 CPU_status = 0; - - /* Check Firmware Ready */ - timeout = jiffies + msecs_to_jiffies(20); - while (time_before(jiffies, timeout)) { - CPU_status = read_nic_dword(priv, CPU_GEN); - - if (CPU_status & CPU_GEN_FIRM_RDY) - break; - msleep(2); - } - - if (!(CPU_status & CPU_GEN_FIRM_RDY)) - goto CPUCheckFirmwareReady_Fail; - else - RT_TRACE(COMP_FIRMWARE, "Download Firmware: Firmware ready!\n"); - - return rt_status; - -CPUCheckFirmwareReady_Fail: - RT_TRACE(COMP_ERR, "ERR in %s()\n", __func__); - rt_status = false; - return rt_status; - -} - -bool init_firmware(struct r8192_priv *priv) -{ - bool rt_status = true; - u32 file_length = 0; - u8 *mapped_file = NULL; - u32 init_step = 0; - enum opt_rst_type rst_opt = OPT_SYSTEM_RESET; - enum firmware_init_step starting_state = FW_INIT_STEP0_BOOT; - - rt_firmware *pfirmware = priv->pFirmware; - const struct firmware *fw_entry; - const char *fw_name[3] = { "RTL8192E/boot.img", - "RTL8192E/main.img", - "RTL8192E/data.img"}; - int rc; - - RT_TRACE(COMP_FIRMWARE, " PlatformInitFirmware()==>\n"); - - if (pfirmware->firmware_status == FW_STATUS_0_INIT) { - /* it is called by reset */ - rst_opt = OPT_SYSTEM_RESET; - starting_state = FW_INIT_STEP0_BOOT; - /* TODO: system reset */ - - } else if (pfirmware->firmware_status == FW_STATUS_5_READY) { - /* it is called by Initialize */ - rst_opt = OPT_FIRMWARE_RESET; - starting_state = FW_INIT_STEP2_DATA; - } else { - RT_TRACE(COMP_FIRMWARE, - "PlatformInitFirmware: undefined firmware state\n"); - } - - /* - * Download boot, main, and data image for System reset. - * Download data image for firmware reseta - */ - for (init_step = starting_state; init_step <= FW_INIT_STEP2_DATA; - init_step++) { - /* - * Open Image file, and map file to contineous memory if open file success. - * or read image file from array. Default load from IMG file - */ - if (rst_opt == OPT_SYSTEM_RESET) { - if (pfirmware->firmware_buf_size[init_step] == 0) { - rc = request_firmware(&fw_entry, - fw_name[init_step], &priv->pdev->dev); - - if (rc < 0) { - RT_TRACE(COMP_FIRMWARE, "request firmware fail!\n"); - goto download_firmware_fail; - } - - if (fw_entry->size > sizeof(pfirmware->firmware_buf[init_step])) { - RT_TRACE(COMP_FIRMWARE, - "img file size exceed the container buffer fail!\n"); - goto download_firmware_fail; - } - - if (init_step != FW_INIT_STEP1_MAIN) { - memcpy(pfirmware->firmware_buf[init_step], - fw_entry->data, fw_entry->size); - pfirmware->firmware_buf_size[init_step] = fw_entry->size; - - } else { - memset(pfirmware->firmware_buf[init_step], 0, 128); - memcpy(&pfirmware->firmware_buf[init_step][128], fw_entry->data, - fw_entry->size); - pfirmware->firmware_buf_size[init_step] = fw_entry->size+128; - } - - if (rst_opt == OPT_SYSTEM_RESET) - release_firmware(fw_entry); - } - mapped_file = pfirmware->firmware_buf[init_step]; - file_length = pfirmware->firmware_buf_size[init_step]; - - } else if (rst_opt == OPT_FIRMWARE_RESET) { - /* we only need to download data.img here */ - mapped_file = pfirmware->firmware_buf[init_step]; - file_length = pfirmware->firmware_buf_size[init_step]; - } - - /* Download image file */ - /* The firmware download process is just as following, - * 1. that is each packet will be segmented and inserted to the - * wait queue. - * 2. each packet segment will be put in the skb_buff packet. - * 3. each skb_buff packet data content will already include - * the firmware info and Tx descriptor info - */ - rt_status = fw_download_code(priv, mapped_file, file_length); - if (rt_status != TRUE) - goto download_firmware_fail; - - switch (init_step) { - case FW_INIT_STEP0_BOOT: - /* Download boot - * initialize command descriptor. - * will set polling bit when firmware code is also - * configured - */ - pfirmware->firmware_status = FW_STATUS_1_MOVE_BOOT_CODE; - /* mdelay(1000); */ - /* - * To initialize IMEM, CPU move code from 0x80000080, - * hence, we send 0x80 byte packet - */ - break; - - case FW_INIT_STEP1_MAIN: - /* Download firmware code. - * Wait until Boot Ready and Turn on CPU */ - pfirmware->firmware_status = FW_STATUS_2_MOVE_MAIN_CODE; - - /* Check Put Code OK and Turn On CPU */ - rt_status = CPUcheck_maincodeok_turnonCPU(priv); - if (rt_status != TRUE) { - RT_TRACE(COMP_FIRMWARE, - "CPUcheck_maincodeok_turnonCPU fail!\n"); - goto download_firmware_fail; - } - - pfirmware->firmware_status = FW_STATUS_3_TURNON_CPU; - break; - - case FW_INIT_STEP2_DATA: - /* download initial data code */ - pfirmware->firmware_status = FW_STATUS_4_MOVE_DATA_CODE; - mdelay(1); - - rt_status = CPUcheck_firmware_ready(priv); - if (rt_status != TRUE) { - RT_TRACE(COMP_FIRMWARE, - "CPUcheck_firmware_ready fail(%d)!\n", - rt_status); - goto download_firmware_fail; - } - - /* wait until data code is initialized ready.*/ - pfirmware->firmware_status = FW_STATUS_5_READY; - break; - } - } - - RT_TRACE(COMP_FIRMWARE, "Firmware Download Success\n"); - return rt_status; - -download_firmware_fail: - RT_TRACE(COMP_ERR, "ERR in %s() step %d\n", __func__, init_step); - rt_status = false; - return rt_status; -} - -MODULE_FIRMWARE("RTL8192E/boot.img"); -MODULE_FIRMWARE("RTL8192E/main.img"); -MODULE_FIRMWARE("RTL8192E/data.img"); |