diff options
Diffstat (limited to 'drivers/staging/ath6kl/os/linux/eeprom.c')
| -rw-r--r-- | drivers/staging/ath6kl/os/linux/eeprom.c | 574 |
1 files changed, 0 insertions, 574 deletions
diff --git a/drivers/staging/ath6kl/os/linux/eeprom.c b/drivers/staging/ath6kl/os/linux/eeprom.c deleted file mode 100644 index 4cff9da2f03e..000000000000 --- a/drivers/staging/ath6kl/os/linux/eeprom.c +++ /dev/null @@ -1,574 +0,0 @@ -//------------------------------------------------------------------------------ -// Copyright (c) 2004-2010 Atheros Communications Inc. -// All rights reserved. -// -// -// -// Permission to use, copy, modify, and/or distribute this software for any -// purpose with or without fee is hereby granted, provided that the above -// copyright notice and this permission notice appear in all copies. -// -// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES -// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF -// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR -// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN -// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF -// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -// -// -// -// Author(s): ="Atheros" -//------------------------------------------------------------------------------ - - -#include "ar6000_drv.h" -#include "htc.h" -#include <linux/fs.h> - -#include "AR6002/hw2.0/hw/gpio_reg.h" -#include "AR6002/hw2.0/hw/si_reg.h" - -// -// defines -// - -#define MAX_FILENAME 1023 -#define EEPROM_WAIT_LIMIT 16 - -#define HOST_INTEREST_ITEM_ADDRESS(item) \ - (AR6002_HOST_INTEREST_ITEM_ADDRESS(item)) - -#define EEPROM_SZ 768 - -/* soft mac */ -#define ATH_MAC_LEN 6 -#define ATH_SOFT_MAC_TMP_BUF_LEN 64 -unsigned char mac_addr[ATH_MAC_LEN]; -unsigned char soft_mac_tmp_buf[ATH_SOFT_MAC_TMP_BUF_LEN]; -char *p_mac = NULL; -/* soft mac */ - -// -// static variables -// - -static u8 eeprom_data[EEPROM_SZ]; -static u32 sys_sleep_reg; -static struct hif_device *p_bmi_device; - -// -// Functions -// - -/* soft mac */ -static int -wmic_ether_aton(const char *orig, u8 *eth) -{ - const char *bufp; - int i; - - i = 0; - for(bufp = orig; *bufp != '\0'; ++bufp) { - unsigned int val; - int h, l; - - h = hex_to_bin(*bufp++); - - if (h < 0) { - printk("%s: MAC value is invalid\n", __FUNCTION__); - break; - } - - l = hex_to_bin(*bufp++); - if (l < 0) { - printk("%s: MAC value is invalid\n", __FUNCTION__); - break; - } - - val = (h << 4) | l; - - eth[i] = (unsigned char) (val & 0377); - if(++i == ATH_MAC_LEN) { - /* That's it. Any trailing junk? */ - if (*bufp != '\0') { - return 0; - } - return 1; - } - if (*bufp != ':') - break; - } - return 0; -} - -static void -update_mac(unsigned char *eeprom, int size, unsigned char *macaddr) -{ - int i; - u16 *ptr = (u16 *)(eeprom+4); - u16 checksum = 0; - - memcpy(eeprom+10,macaddr,6); - - *ptr = 0; - ptr = (u16 *)eeprom; - - for (i=0; i<size; i+=2) { - checksum ^= *ptr++; - } - checksum = ~checksum; - - ptr = (u16 *)(eeprom+4); - *ptr = checksum; - return; -} -/* soft mac */ - -/* Read a Target register and return its value. */ -inline void -BMI_read_reg(u32 address, u32 *pvalue) -{ - BMIReadSOCRegister(p_bmi_device, address, pvalue); -} - -/* Write a value to a Target register. */ -inline void -BMI_write_reg(u32 address, u32 value) -{ - BMIWriteSOCRegister(p_bmi_device, address, value); -} - -/* Read Target memory word and return its value. */ -inline void -BMI_read_mem(u32 address, u32 *pvalue) -{ - BMIReadMemory(p_bmi_device, address, (u8*)(pvalue), 4); -} - -/* Write a word to a Target memory. */ -inline void -BMI_write_mem(u32 address, u8 *p_data, u32 sz) -{ - BMIWriteMemory(p_bmi_device, address, (u8*)(p_data), sz); -} - -/* - * Enable and configure the Target's Serial Interface - * so we can access the EEPROM. - */ -static void -enable_SI(struct hif_device *p_device) -{ - u32 regval; - - printk("%s\n", __FUNCTION__); - - p_bmi_device = p_device; - - BMI_read_reg(RTC_BASE_ADDRESS+SYSTEM_SLEEP_OFFSET, &sys_sleep_reg); - BMI_write_reg(RTC_BASE_ADDRESS+SYSTEM_SLEEP_OFFSET, SYSTEM_SLEEP_DISABLE_SET(1)); //disable system sleep temporarily - - BMI_read_reg(RTC_BASE_ADDRESS+CLOCK_CONTROL_OFFSET, ®val); - regval &= ~CLOCK_CONTROL_SI0_CLK_MASK; - BMI_write_reg(RTC_BASE_ADDRESS+CLOCK_CONTROL_OFFSET, regval); - - BMI_read_reg(RTC_BASE_ADDRESS+RESET_CONTROL_OFFSET, ®val); - regval &= ~RESET_CONTROL_SI0_RST_MASK; - BMI_write_reg(RTC_BASE_ADDRESS+RESET_CONTROL_OFFSET, regval); - - - BMI_read_reg(GPIO_BASE_ADDRESS+GPIO_PIN0_OFFSET, ®val); - regval &= ~GPIO_PIN0_CONFIG_MASK; - BMI_write_reg(GPIO_BASE_ADDRESS+GPIO_PIN0_OFFSET, regval); - - BMI_read_reg(GPIO_BASE_ADDRESS+GPIO_PIN1_OFFSET, ®val); - regval &= ~GPIO_PIN1_CONFIG_MASK; - BMI_write_reg(GPIO_BASE_ADDRESS+GPIO_PIN1_OFFSET, regval); - - /* SI_CONFIG = 0x500a6; */ - regval = SI_CONFIG_BIDIR_OD_DATA_SET(1) | - SI_CONFIG_I2C_SET(1) | - SI_CONFIG_POS_SAMPLE_SET(1) | - SI_CONFIG_INACTIVE_CLK_SET(1) | - SI_CONFIG_INACTIVE_DATA_SET(1) | - SI_CONFIG_DIVIDER_SET(6); - BMI_write_reg(SI_BASE_ADDRESS+SI_CONFIG_OFFSET, regval); - -} - -static void -disable_SI(void) -{ - u32 regval; - - printk("%s\n", __FUNCTION__); - - BMI_write_reg(RTC_BASE_ADDRESS+RESET_CONTROL_OFFSET, RESET_CONTROL_SI0_RST_MASK); - BMI_read_reg(RTC_BASE_ADDRESS+CLOCK_CONTROL_OFFSET, ®val); - regval |= CLOCK_CONTROL_SI0_CLK_MASK; - BMI_write_reg(RTC_BASE_ADDRESS+CLOCK_CONTROL_OFFSET, regval);//Gate SI0 clock - BMI_write_reg(RTC_BASE_ADDRESS+SYSTEM_SLEEP_OFFSET, sys_sleep_reg); //restore system sleep setting -} - -/* - * Tell the Target to start an 8-byte read from EEPROM, - * putting the results in Target RX_DATA registers. - */ -static void -request_8byte_read(int offset) -{ - u32 regval; - -// printk("%s: request_8byte_read from offset 0x%x\n", __FUNCTION__, offset); - - - /* SI_TX_DATA0 = read from offset */ - regval =(0xa1<<16)| - ((offset & 0xff)<<8) | - (0xa0 | ((offset & 0xff00)>>7)); - - BMI_write_reg(SI_BASE_ADDRESS+SI_TX_DATA0_OFFSET, regval); - - regval = SI_CS_START_SET(1) | - SI_CS_RX_CNT_SET(8) | - SI_CS_TX_CNT_SET(3); - BMI_write_reg(SI_BASE_ADDRESS+SI_CS_OFFSET, regval); -} - -/* - * Tell the Target to start a 4-byte write to EEPROM, - * writing values from Target TX_DATA registers. - */ -static void -request_4byte_write(int offset, u32 data) -{ - u32 regval; - - printk("%s: request_4byte_write (0x%x) to offset 0x%x\n", __FUNCTION__, data, offset); - - /* SI_TX_DATA0 = write data to offset */ - regval = ((data & 0xffff) <<16) | - ((offset & 0xff)<<8) | - (0xa0 | ((offset & 0xff00)>>7)); - BMI_write_reg(SI_BASE_ADDRESS+SI_TX_DATA0_OFFSET, regval); - - regval = data >> 16; - BMI_write_reg(SI_BASE_ADDRESS+SI_TX_DATA1_OFFSET, regval); - - regval = SI_CS_START_SET(1) | - SI_CS_RX_CNT_SET(0) | - SI_CS_TX_CNT_SET(6); - BMI_write_reg(SI_BASE_ADDRESS+SI_CS_OFFSET, regval); -} - -/* - * Check whether or not an EEPROM request that was started - * earlier has completed yet. - */ -static bool -request_in_progress(void) -{ - u32 regval; - - /* Wait for DONE_INT in SI_CS */ - BMI_read_reg(SI_BASE_ADDRESS+SI_CS_OFFSET, ®val); - -// printk("%s: request in progress SI_CS=0x%x\n", __FUNCTION__, regval); - if (regval & SI_CS_DONE_ERR_MASK) { - printk("%s: EEPROM signaled ERROR (0x%x)\n", __FUNCTION__, regval); - } - - return (!(regval & SI_CS_DONE_INT_MASK)); -} - -/* - * try to detect the type of EEPROM,16bit address or 8bit address - */ - -static void eeprom_type_detect(void) -{ - u32 regval; - u8 i = 0; - - request_8byte_read(0x100); - /* Wait for DONE_INT in SI_CS */ - do{ - BMI_read_reg(SI_BASE_ADDRESS+SI_CS_OFFSET, ®val); - if (regval & SI_CS_DONE_ERR_MASK) { - printk("%s: ERROR : address type was wrongly set\n", __FUNCTION__); - break; - } - if (i++ == EEPROM_WAIT_LIMIT) { - printk("%s: EEPROM not responding\n", __FUNCTION__); - } - } while(!(regval & SI_CS_DONE_INT_MASK)); -} - -/* - * Extract the results of a completed EEPROM Read request - * and return them to the caller. - */ -inline void -read_8byte_results(u32 *data) -{ - /* Read SI_RX_DATA0 and SI_RX_DATA1 */ - BMI_read_reg(SI_BASE_ADDRESS+SI_RX_DATA0_OFFSET, &data[0]); - BMI_read_reg(SI_BASE_ADDRESS+SI_RX_DATA1_OFFSET, &data[1]); -} - - -/* - * Wait for a previously started command to complete. - * Timeout if the command is takes "too long". - */ -static void -wait_for_eeprom_completion(void) -{ - int i=0; - - while (request_in_progress()) { - if (i++ == EEPROM_WAIT_LIMIT) { - printk("%s: EEPROM not responding\n", __FUNCTION__); - } - } -} - -/* - * High-level function which starts an 8-byte read, - * waits for it to complete, and returns the result. - */ -static void -fetch_8bytes(int offset, u32 *data) -{ - request_8byte_read(offset); - wait_for_eeprom_completion(); - read_8byte_results(data); - - /* Clear any pending intr */ - BMI_write_reg(SI_BASE_ADDRESS+SI_CS_OFFSET, SI_CS_DONE_INT_MASK); -} - -/* - * High-level function which starts a 4-byte write, - * and waits for it to complete. - */ -inline void -commit_4bytes(int offset, u32 data) -{ - request_4byte_write(offset, data); - wait_for_eeprom_completion(); -} -/* ATHENV */ -#ifdef ANDROID_ENV -void eeprom_ar6000_transfer(struct hif_device *device, char *fake_file, char *p_mac) -{ - u32 first_word; - u32 board_data_addr; - int i; - - printk("%s: Enter\n", __FUNCTION__); - - enable_SI(device); - eeprom_type_detect(); - - if (fake_file) { - /* - * Transfer from file to Target RAM. - * Fetch source data from file. - */ - mm_segment_t oldfs; - struct file *filp; - struct inode *inode = NULL; - int length; - - /* open file */ - oldfs = get_fs(); - set_fs(KERNEL_DS); - filp = filp_open(fake_file, O_RDONLY, S_IRUSR); - - if (IS_ERR(filp)) { - printk("%s: file %s filp_open error\n", __FUNCTION__, fake_file); - set_fs(oldfs); - return; - } - - if (!filp->f_op) { - printk("%s: File Operation Method Error\n", __FUNCTION__); - filp_close(filp, NULL); - set_fs(oldfs); - return; - } - - inode = GET_INODE_FROM_FILEP(filep); - if (!inode) { - printk("%s: Get inode from filp failed\n", __FUNCTION__); - filp_close(filp, NULL); - set_fs(oldfs); - return; - } - - printk("%s file offset opsition: %xh\n", __FUNCTION__, (unsigned)filp->f_pos); - - /* file's size */ - length = i_size_read(inode->i_mapping->host); - printk("%s: length=%d\n", __FUNCTION__, length); - if (length != EEPROM_SZ) { - printk("%s: The file's size is not as expected\n", __FUNCTION__); - filp_close(filp, NULL); - set_fs(oldfs); - return; - } - - /* read data */ - if (filp->f_op->read(filp, eeprom_data, length, &filp->f_pos) != length) { - printk("%s: file read error\n", __FUNCTION__); - filp_close(filp, NULL); - set_fs(oldfs); - return; - } - - /* read data out successfully */ - filp_close(filp, NULL); - set_fs(oldfs); - } else { - /* - * Read from EEPROM to file OR transfer from EEPROM to Target RAM. - * Fetch EEPROM_SZ Bytes of Board Data, 8 bytes at a time. - */ - - fetch_8bytes(0, (u32 *)(&eeprom_data[0])); - - /* Check the first word of EEPROM for validity */ - first_word = *((u32 *)eeprom_data); - - if ((first_word == 0) || (first_word == 0xffffffff)) { - printk("Did not find EEPROM with valid Board Data.\n"); - } - - for (i=8; i<EEPROM_SZ; i+=8) { - fetch_8bytes(i, (u32 *)(&eeprom_data[i])); - } - } - - /* soft mac */ - if (p_mac) { - - mm_segment_t oldfs; - struct file *filp; - struct inode *inode = NULL; - int length; - - /* open file */ - oldfs = get_fs(); - set_fs(KERNEL_DS); - filp = filp_open(p_mac, O_RDONLY, S_IRUSR); - - printk("%s try to open file %s\n", __FUNCTION__, p_mac); - - if (IS_ERR(filp)) { - printk("%s: file %s filp_open error\n", __FUNCTION__, p_mac); - set_fs(oldfs); - return; - } - - if (!filp->f_op) { - printk("%s: File Operation Method Error\n", __FUNCTION__); - filp_close(filp, NULL); - set_fs(oldfs); - return; - } - - inode = GET_INODE_FROM_FILEP(filep); - if (!inode) { - printk("%s: Get inode from filp failed\n", __FUNCTION__); - filp_close(filp, NULL); - set_fs(oldfs); - return; - } - - printk("%s file offset opsition: %xh\n", __FUNCTION__, (unsigned)filp->f_pos); - - /* file's size */ - length = i_size_read(inode->i_mapping->host); - printk("%s: length=%d\n", __FUNCTION__, length); - if (length > ATH_SOFT_MAC_TMP_BUF_LEN) { - printk("%s: MAC file's size is not as expected\n", __FUNCTION__); - filp_close(filp, NULL); - set_fs(oldfs); - return; - } - - /* read data */ - if (filp->f_op->read(filp, soft_mac_tmp_buf, length, &filp->f_pos) != length) { - printk("%s: file read error\n", __FUNCTION__); - filp_close(filp, NULL); - set_fs(oldfs); - return; - } - -#if 0 - /* the data we just read */ - printk("%s: mac address from the file:\n", __FUNCTION__); - for (i = 0; i < length; i++) - printk("[%c(0x%x)],", soft_mac_tmp_buf[i], soft_mac_tmp_buf[i]); - printk("\n"); -#endif - - /* read data out successfully */ - filp_close(filp, NULL); - set_fs(oldfs); - - /* convert mac address */ - if (!wmic_ether_aton(soft_mac_tmp_buf, mac_addr)) { - printk("%s: convert mac value fail\n", __FUNCTION__); - return; - } - -#if 0 - /* the converted mac address */ - printk("%s: the converted mac value\n", __FUNCTION__); - for (i = 0; i < ATH_MAC_LEN; i++) - printk("[0x%x],", mac_addr[i]); - printk("\n"); -#endif - } - /* soft mac */ - - /* Determine where in Target RAM to write Board Data */ - BMI_read_mem( HOST_INTEREST_ITEM_ADDRESS(hi_board_data), &board_data_addr); - if (board_data_addr == 0) { - printk("hi_board_data is zero\n"); - } - - /* soft mac */ -#if 1 - /* Update MAC address in RAM */ - if (p_mac) { - update_mac(eeprom_data, EEPROM_SZ, mac_addr); - } -#endif -#if 0 - /* mac address in eeprom array */ - printk("%s: mac values in eeprom array\n", __FUNCTION__); - for (i = 10; i < 10 + 6; i++) - printk("[0x%x],", eeprom_data[i]); - printk("\n"); -#endif - /* soft mac */ - - /* Write EEPROM data to Target RAM */ - BMI_write_mem(board_data_addr, ((u8 *)eeprom_data), EEPROM_SZ); - - /* Record the fact that Board Data IS initialized */ - { - u32 one = 1; - BMI_write_mem(HOST_INTEREST_ITEM_ADDRESS(hi_board_data_initialized), - (u8 *)&one, sizeof(u32)); - } - - disable_SI(); -} -#endif -/* ATHENV */ - |