diff options
Diffstat (limited to 'drivers/staging/r8188eu/core/rtw_fw.c')
| -rw-r--r-- | drivers/staging/r8188eu/core/rtw_fw.c | 335 |
1 files changed, 0 insertions, 335 deletions
diff --git a/drivers/staging/r8188eu/core/rtw_fw.c b/drivers/staging/r8188eu/core/rtw_fw.c deleted file mode 100644 index 1e4baf74ecd5..000000000000 --- a/drivers/staging/r8188eu/core/rtw_fw.c +++ /dev/null @@ -1,335 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* Copyright(c) 2007 - 2011 Realtek Corporation. */ - -#include <linux/firmware.h> -#include "../include/rtw_fw.h" - -#define MAX_REG_BLOCK_SIZE 196 -#define FW_8188E_START_ADDRESS 0x1000 -#define MAX_PAGE_SIZE 4096 - -#define IS_FW_HEADER_EXIST(_fwhdr) \ - ((le16_to_cpu(_fwhdr->signature) & 0xFFF0) == 0x92C0 || \ - (le16_to_cpu(_fwhdr->signature) & 0xFFF0) == 0x88C0 || \ - (le16_to_cpu(_fwhdr->signature) & 0xFFF0) == 0x2300 || \ - (le16_to_cpu(_fwhdr->signature) & 0xFFF0) == 0x88E0) - -struct rt_firmware_hdr { - __le16 signature; /* 92C0: test chip; 92C, - * 88C0: test chip; 88C1: MP A-cut; - * 92C1: MP A-cut */ - u8 category; /* AP/NIC and USB/PCI */ - u8 function; /* Reserved for different FW function - * indcation, for further use when - * driver needs to download different - * FW for different conditions */ - __le16 version; /* FW Version */ - u8 subversion; /* FW Subversion, default 0x00 */ - u8 rsvd1; - u8 month; /* Release time Month field */ - u8 date; /* Release time Date field */ - u8 hour; /* Release time Hour field */ - u8 minute; /* Release time Minute field */ - __le16 ramcodesize; /* The size of RAM code */ - u8 foundry; - u8 rsvd2; - __le32 svnidx; /* The SVN entry index */ - __le32 rsvd3; - __le32 rsvd4; - __le32 rsvd5; -}; - -static_assert(sizeof(struct rt_firmware_hdr) == 32); - -static void fw_download_enable(struct adapter *padapter, bool enable) -{ - u8 tmp; - int res; - - if (enable) { - /* MCU firmware download enable. */ - res = rtw_read8(padapter, REG_MCUFWDL, &tmp); - if (res) - return; - - rtw_write8(padapter, REG_MCUFWDL, tmp | 0x01); - - /* 8051 reset */ - res = rtw_read8(padapter, REG_MCUFWDL + 2, &tmp); - if (res) - return; - - rtw_write8(padapter, REG_MCUFWDL + 2, tmp & 0xf7); - } else { - /* MCU firmware download disable. */ - res = rtw_read8(padapter, REG_MCUFWDL, &tmp); - if (res) - return; - - rtw_write8(padapter, REG_MCUFWDL, tmp & 0xfe); - - /* Reserved for fw extension. */ - rtw_write8(padapter, REG_MCUFWDL + 1, 0x00); - } -} - -static int block_write(struct adapter *padapter, u8 *buffer, u32 size) -{ - int ret = _SUCCESS; - u32 blocks, block_size, remain; - u32 i, offset, addr; - u8 *data; - - block_size = MAX_REG_BLOCK_SIZE; - - blocks = size / block_size; - remain = size % block_size; - - for (i = 0; i < blocks; i++) { - addr = FW_8188E_START_ADDRESS + i * block_size; - data = buffer + i * block_size; - - if (rtw_writeN(padapter, addr, block_size, data)) - return _FAIL; - } - - if (remain) { - offset = blocks * block_size; - block_size = 8; - - blocks = remain / block_size; - remain = remain % block_size; - - for (i = 0; i < blocks; i++) { - addr = FW_8188E_START_ADDRESS + offset + i * block_size; - data = buffer + offset + i * block_size; - - if (rtw_writeN(padapter, addr, block_size, data)) - return _FAIL; - } - } - - if (remain) { - offset += blocks * block_size; - - /* block size 1 */ - blocks = remain; - - for (i = 0; i < blocks; i++) { - addr = FW_8188E_START_ADDRESS + offset + i; - data = buffer + offset + i; - - ret = rtw_write8(padapter, addr, *data); - if (ret == _FAIL) - goto exit; - } - } - -exit: - return ret; -} - -static int page_write(struct adapter *padapter, u32 page, u8 *buffer, u32 size) -{ - u8 value8; - u8 u8Page = (u8)(page & 0x07); - int res; - - res = rtw_read8(padapter, REG_MCUFWDL + 2, &value8); - if (res) - return _FAIL; - - value8 = (value8 & 0xF8) | u8Page; - rtw_write8(padapter, REG_MCUFWDL + 2, value8); - - return block_write(padapter, buffer, size); -} - -static int write_fw(struct adapter *padapter, u8 *buffer, u32 size) -{ - /* Since we need dynamic decide method of dwonload fw, so we call this function to get chip version. */ - /* We can remove _ReadChipVersion from ReadpadapterInfo8192C later. */ - int ret = _SUCCESS; - u32 pageNums, remainSize; - u32 page, offset; - - pageNums = size / MAX_PAGE_SIZE; - remainSize = size % MAX_PAGE_SIZE; - - for (page = 0; page < pageNums; page++) { - offset = page * MAX_PAGE_SIZE; - ret = page_write(padapter, page, buffer + offset, MAX_PAGE_SIZE); - - if (ret == _FAIL) - goto exit; - } - if (remainSize) { - offset = pageNums * MAX_PAGE_SIZE; - page = pageNums; - ret = page_write(padapter, page, buffer + offset, remainSize); - - if (ret == _FAIL) - goto exit; - } -exit: - return ret; -} - -void rtw_reset_8051(struct adapter *padapter) -{ - u8 val8; - int res; - - res = rtw_read8(padapter, REG_SYS_FUNC_EN + 1, &val8); - if (res) - return; - - rtw_write8(padapter, REG_SYS_FUNC_EN + 1, val8 & (~BIT(2))); - rtw_write8(padapter, REG_SYS_FUNC_EN + 1, val8 | (BIT(2))); -} - -static int fw_free_to_go(struct adapter *padapter) -{ - u32 counter = 0; - u32 value32; - int res; - - /* polling CheckSum report */ - do { - res = rtw_read32(padapter, REG_MCUFWDL, &value32); - if (res) - continue; - - if (value32 & FWDL_CHKSUM_RPT) - break; - } while (counter++ < POLLING_READY_TIMEOUT_COUNT); - - if (counter >= POLLING_READY_TIMEOUT_COUNT) - return _FAIL; - - res = rtw_read32(padapter, REG_MCUFWDL, &value32); - if (res) - return _FAIL; - - value32 |= MCUFWDL_RDY; - value32 &= ~WINTINI_RDY; - rtw_write32(padapter, REG_MCUFWDL, value32); - - rtw_reset_8051(padapter); - - /* polling for FW ready */ - counter = 0; - do { - res = rtw_read32(padapter, REG_MCUFWDL, &value32); - if (!res && value32 & WINTINI_RDY) - return _SUCCESS; - - udelay(5); - } while (counter++ < POLLING_READY_TIMEOUT_COUNT); - - return _FAIL; -} - -static int load_firmware(struct rt_firmware *rtfw, struct device *device) -{ - int ret = _SUCCESS; - const struct firmware *fw; - const char *fw_name = FW_RTL8188EU; - int err = request_firmware(&fw, fw_name, device); - - if (err) { - pr_err("Request firmware failed with error 0x%x\n", err); - ret = _FAIL; - goto exit; - } - if (!fw) { - pr_err("Firmware %s not available\n", fw_name); - ret = _FAIL; - goto exit; - } - - rtfw->data = kmemdup(fw->data, fw->size, GFP_KERNEL); - if (!rtfw->data) { - pr_err("Failed to allocate rtfw->data\n"); - ret = _FAIL; - goto exit; - } - rtfw->size = fw->size; - -exit: - release_firmware(fw); - return ret; -} - -int rtl8188e_firmware_download(struct adapter *padapter) -{ - int ret = _SUCCESS; - u8 reg; - unsigned long fwdl_timeout; - struct dvobj_priv *dvobj = adapter_to_dvobj(padapter); - struct device *device = dvobj_to_dev(dvobj); - struct rt_firmware_hdr *fwhdr = NULL; - u8 *fw_data; - u32 fw_size; - - if (!dvobj->firmware.data) - ret = load_firmware(&dvobj->firmware, device); - if (ret == _FAIL) { - dvobj->firmware.data = NULL; - goto exit; - } - fw_data = dvobj->firmware.data; - fw_size = dvobj->firmware.size; - - fwhdr = (struct rt_firmware_hdr *)dvobj->firmware.data; - - if (IS_FW_HEADER_EXIST(fwhdr)) { - dev_info_once(device, "Firmware Version %d, SubVersion %d, Signature 0x%x\n", - le16_to_cpu(fwhdr->version), fwhdr->subversion, - le16_to_cpu(fwhdr->signature)); - - fw_data = fw_data + sizeof(struct rt_firmware_hdr); - fw_size = fw_size - sizeof(struct rt_firmware_hdr); - } - - /* Suggested by Filen. If 8051 is running in RAM code, driver should inform Fw to reset by itself, */ - /* or it will cause download Fw fail. 2010.02.01. by tynli. */ - ret = rtw_read8(padapter, REG_MCUFWDL, ®); - if (ret) { - ret = _FAIL; - goto exit; - } - - if (reg & RAM_DL_SEL) { /* 8051 RAM code */ - rtw_write8(padapter, REG_MCUFWDL, 0x00); - rtw_reset_8051(padapter); - } - - fw_download_enable(padapter, true); - fwdl_timeout = jiffies + msecs_to_jiffies(500); - do { - /* reset the FWDL chksum */ - ret = rtw_read8(padapter, REG_MCUFWDL, ®); - if (ret) { - ret = _FAIL; - continue; - } - - rtw_write8(padapter, REG_MCUFWDL, reg | FWDL_CHKSUM_RPT); - - ret = write_fw(padapter, fw_data, fw_size); - if (ret == _SUCCESS) - break; - } while (!time_after(jiffies, fwdl_timeout)); - - fw_download_enable(padapter, false); - if (ret != _SUCCESS) - goto exit; - - ret = fw_free_to_go(padapter); - if (ret != _SUCCESS) - goto exit; - -exit: - return ret; -} |