| /* |
| * drivers/amlogic/media/vout/lcd/lcd_extern/i2c_ANX6862_7911.c |
| * |
| * Copyright (C) 2015 Amlogic, Inc. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| */ |
| |
| #include <common.h> |
| #include <malloc.h> |
| #include <asm/arch/gpio.h> |
| #include <fdtdec.h> |
| #include <amlogic/media/vout/lcd/aml_lcd.h> |
| #include <amlogic/media/vout/lcd/lcd_extern.h> |
| #include "lcd_extern.h" |
| #include "../lcd_common.h" |
| #include "../lcd_reg.h" |
| |
| #define LCD_EXTERN_NAME "i2c_ANX6862_7911" |
| #define LCD_EXTERN_TYPE LCD_EXTERN_I2C |
| |
| #define LCD_EXTERN_I2C_ADDR (0x20) //7bit address |
| #define LCD_EXTERN_I2C_ADDR2 (0x74) //7bit address |
| |
| |
| static struct lcd_extern_config_s *ext_config; |
| |
| static unsigned char ANX6862_NVM_wr[] = {0xff, 0x80}; |
| static unsigned char ANX7911_NVM_wr[] = {0x00, 0x0a}; |
| |
| #define ANX6862_REG_CNT 12 |
| #define ANX7911_REG_CNT 23 |
| #if 0 |
| static unsigned char ANX6862_7911_init[] = { |
| 0xc0, 2, 0x01, 0x2b, |
| 0xc0, 2, 0x02, 0x05, |
| 0xc0, 2, 0x03, 0x00, |
| 0xc0, 2, 0x04, 0x00, |
| 0xc0, 2, 0x05, 0x0c, |
| 0xc0, 2, 0x06, 0x04, |
| 0xc0, 2, 0x07, 0x21, |
| 0xc0, 2, 0x08, 0x0e, |
| 0xc0, 2, 0x09, 0x04, |
| 0xc0, 2, 0x0a, 0x00, |
| 0xc0, 2, 0x0b, 0x04, |
| 0xc0, 2, 0xff, 0x00, |
| 0xfd, 1, 50, /* delay 50ms */ |
| |
| 0xc1, 2, 0x01, 0xca, |
| 0xc1, 2, 0x02, 0x3b, |
| 0xc1, 2, 0x03, 0x33, |
| 0xc1, 2, 0x04, 0x05, |
| 0xc1, 2, 0x05, 0x2c, |
| 0xc1, 2, 0x06, 0xf2, |
| 0xc1, 2, 0x07, 0x9c, |
| 0xc1, 2, 0x08, 0x1b, |
| 0xc1, 2, 0x09, 0x82, |
| 0xc1, 2, 0x0a, 0x3d, |
| 0xc1, 2, 0x0b, 0x20, |
| 0xc1, 2, 0x0c, 0x11, |
| 0xc1, 2, 0x0d, 0xc4, |
| 0xc1, 2, 0x0e, 0x1a, |
| 0xc1, 2, 0x0f, 0x31, |
| 0xc1, 2, 0x10, 0x4c, |
| 0xc1, 2, 0x11, 0x12, |
| 0xc1, 2, 0x12, 0x90, |
| 0xc1, 2, 0x13, 0xf7, |
| 0xc1, 2, 0x14, 0x0c, |
| 0xc1, 2, 0x15, 0x20, |
| 0xc1, 2, 0x16, 0x13, |
| 0xff, 0, |
| }; |
| #endif |
| |
| static int lcd_extern_power_cmd_dynamic_size(unsigned char *table, |
| unsigned char flag) |
| { |
| int i = 0, j, step = 0, max_len; |
| unsigned char type, cmd_size, type_chk, type_other; |
| unsigned char i2c_bus, i2c_addr; |
| int delay_bypass, delay_ms, ret = 0; |
| |
| if (table == NULL) |
| return -1; |
| |
| i2c_bus = ext_config->i2c_bus; |
| max_len = ext_config->table_init_on_cnt; |
| if (flag) { |
| i2c_addr = ext_config->i2c_addr2; |
| type_chk = LCD_EXT_CMD_TYPE_CMD2; |
| type_other = LCD_EXT_CMD_TYPE_CMD; |
| } else { |
| i2c_addr = ext_config->i2c_addr; |
| type_chk = LCD_EXT_CMD_TYPE_CMD; |
| type_other = LCD_EXT_CMD_TYPE_CMD2; |
| } |
| |
| delay_bypass = 0; |
| while ((i + 1) < max_len) { |
| type = table[i]; |
| if (type == LCD_EXT_CMD_TYPE_END) |
| break; |
| cmd_size = table[i+1]; |
| if (cmd_size == 0) |
| goto power_cmd_dynamic_next; |
| if ((i + 2 + cmd_size) > max_len) |
| break; |
| |
| if (type == type_chk) { |
| if (lcd_debug_print_flag) { |
| EXTPR("%s: step %d: type=0x%02x, cmd_size=%d\n", |
| __func__, step, type, table[i+1]); |
| } |
| ret = lcd_extern_i2c_write(i2c_bus, i2c_addr, |
| &table[i+2], cmd_size); |
| delay_bypass = 0; |
| } else if (type == LCD_EXT_CMD_TYPE_DELAY) { |
| if (delay_bypass) |
| goto power_cmd_dynamic_next; |
| if (lcd_debug_print_flag) { |
| EXTPR("%s: step %d: type=0x%02x, cmd_size=%d\n", |
| __func__, step, type, table[i+1]); |
| } |
| delay_ms = 0; |
| for (j = 0; j < cmd_size; j++) |
| delay_ms += table[i+2+j]; |
| if (delay_ms > 0) |
| mdelay(delay_ms); |
| } else if (type == type_other) { |
| delay_bypass = 1; |
| } else { |
| delay_bypass = 1; |
| EXTERR("%s(%d: %s): type 0x%02x invalid\n", |
| __func__, ext_config->index, |
| ext_config->name, type); |
| } |
| power_cmd_dynamic_next: |
| i += (cmd_size + 2); |
| step++; |
| } |
| |
| return ret; |
| } |
| |
| static int lcd_extern_power_cmd_fixed_size(unsigned char *table, |
| unsigned char flag) |
| { |
| int i = 0, j, step = 0, max_len = LCD_EXTERN_INIT_ON_MAX; |
| unsigned char type, cmd_size, type_chk, type_other; |
| unsigned char i2c_bus, i2c_addr; |
| int delay_bypass, delay_ms, ret = 0; |
| |
| if (table == NULL) |
| return -1; |
| |
| i2c_bus = ext_config->i2c_bus; |
| cmd_size = ext_config->cmd_size; |
| max_len = ext_config->table_init_on_cnt; |
| if (flag) { |
| i2c_addr = ext_config->i2c_addr2; |
| type_chk = LCD_EXT_CMD_TYPE_CMD2; |
| type_other = LCD_EXT_CMD_TYPE_CMD; |
| } else { |
| i2c_addr = ext_config->i2c_addr; |
| type_chk = LCD_EXT_CMD_TYPE_CMD; |
| type_other = LCD_EXT_CMD_TYPE_CMD2; |
| } |
| |
| if (cmd_size < 2) { |
| EXTERR("%s: invalid cmd_size %d\n", __func__, cmd_size); |
| return -1; |
| } |
| |
| delay_bypass = 0; |
| while ((i + cmd_size) <= max_len) { |
| type = table[i]; |
| if (type == LCD_EXT_CMD_TYPE_END) |
| break; |
| if (type == type_chk) { |
| if (lcd_debug_print_flag) { |
| EXTPR("%s: step %d: type=0x%02x, cmd_size=%d\n", |
| __func__, step, type, cmd_size); |
| } |
| ret = lcd_extern_i2c_write(i2c_bus, i2c_addr, |
| &table[i+1], (cmd_size-1)); |
| delay_bypass = 0; |
| } else if (type == LCD_EXT_CMD_TYPE_DELAY) { |
| if (delay_bypass) |
| goto power_cmd_fixed_next; |
| if (lcd_debug_print_flag) { |
| EXTPR("%s: step %d: type=0x%02x, cmd_size=%d\n", |
| __func__, step, type, cmd_size); |
| } |
| delay_ms = 0; |
| for (j = 0; j < (cmd_size - 1); j++) |
| delay_ms += table[i+1+j]; |
| if (delay_ms > 0) |
| mdelay(delay_ms); |
| } else if (type == type_other) { |
| delay_bypass = 1; |
| } else { |
| delay_bypass = 1; |
| EXTERR("%s(%d: %s): type 0x%02x invalid\n", |
| __func__, ext_config->index, |
| ext_config->name, type); |
| } |
| power_cmd_fixed_next: |
| i += cmd_size; |
| step++; |
| } |
| |
| return ret; |
| } |
| |
| static int lcd_extern_power_cmd(unsigned char flag) |
| { |
| unsigned char *table; |
| unsigned char cmd_size; |
| int ret = 0; |
| |
| table = ext_config->table_init_on; |
| cmd_size = ext_config->cmd_size; |
| if (cmd_size < 1) { |
| EXTERR("%s: cmd_size %d is invalid\n", __func__, cmd_size); |
| return -1; |
| } |
| if (table == NULL) { |
| EXTERR("%s: init_on_table is NULL\n", __func__); |
| return -1; |
| } |
| |
| if (cmd_size == LCD_EXT_CMD_SIZE_DYNAMIC) |
| ret = lcd_extern_power_cmd_dynamic_size(table, flag); |
| else |
| ret = lcd_extern_power_cmd_fixed_size(table, flag); |
| |
| return ret; |
| } |
| |
| static int lcd_extern_check_reg_dynamic_size(unsigned char *table, |
| unsigned char *chk_table, int cnt, unsigned char flag) |
| { |
| int i = 0, step = 0, max_len; |
| unsigned char type, cmd_size, type_chk, reg; |
| int ret = 0; |
| |
| if (table == NULL) |
| return -1; |
| |
| max_len = ext_config->table_init_on_cnt; |
| type_chk = (flag) ? LCD_EXT_CMD_TYPE_CMD2 : LCD_EXT_CMD_TYPE_CMD; |
| |
| while ((i + 1) < max_len) { |
| type = table[i]; |
| if (type == LCD_EXT_CMD_TYPE_END) |
| break; |
| cmd_size = table[i+1]; |
| if (cmd_size == 0) { |
| i += 2; |
| continue; |
| } |
| if ((i + 2 + cmd_size) > max_len) |
| break; |
| |
| if (type == type_chk) { |
| reg = table[i+2]; |
| if (lcd_debug_print_flag) { |
| EXTPR("%s: step %d: reg 0x%02x, val 0x%02x,0x%02x\n", |
| __func__, step, |
| reg, table[i+3], chk_table[reg]); |
| } |
| if (chk_table[reg] != table[i+3]) |
| return -1; |
| } |
| i += (cmd_size + 2); |
| step++; |
| } |
| |
| return ret; |
| } |
| |
| static int lcd_extern_check_reg_fixed_size(unsigned char *table, |
| unsigned char *chk_table, int cnt, unsigned char flag) |
| { |
| int i = 0, step = 0, max_len; |
| unsigned char type, cmd_size, type_chk, reg; |
| |
| cmd_size = ext_config->cmd_size; |
| max_len = ext_config->table_init_on_cnt; |
| type_chk = (flag) ? LCD_EXT_CMD_TYPE_CMD2 : LCD_EXT_CMD_TYPE_CMD; |
| |
| while ((i + cmd_size) <= max_len) { |
| type = table[i]; |
| if (type == LCD_EXT_CMD_TYPE_END) |
| break; |
| if (type == type_chk) { |
| reg = table[i+1]; |
| if (lcd_debug_print_flag) { |
| EXTPR("%s: step %d: reg 0x%02x, val 0x%02x,0x%02x\n", |
| __func__, step, |
| reg, table[i+2], chk_table[reg]); |
| } |
| if (chk_table[reg] != table[i+2]) |
| return -1; |
| } |
| i += cmd_size; |
| step++; |
| } |
| |
| return 0; |
| } |
| |
| static int lcd_extern_init_check(unsigned char flag) |
| { |
| unsigned char *table, *chk_table, cmd_size; |
| unsigned char i2c_bus, i2c_addr; |
| int cnt, ret = 0; |
| |
| table = ext_config->table_init_on; |
| cmd_size = ext_config->cmd_size; |
| i2c_bus = ext_config->i2c_bus; |
| if (flag) |
| i2c_addr = ext_config->i2c_addr2; |
| else |
| i2c_addr = ext_config->i2c_addr; |
| |
| cnt = (flag) ? ANX7911_REG_CNT : ANX6862_REG_CNT; |
| if (cmd_size < 1) { |
| EXTERR("%s: cmd_size %d is invalid\n", __func__, cmd_size); |
| return -1; |
| } |
| if (table == NULL) { |
| EXTERR("%s: init_table %d is NULL\n", __func__, flag); |
| return -1; |
| } |
| |
| chk_table = malloc(cnt * sizeof(unsigned char)); |
| if (chk_table == NULL) { |
| EXTERR("%s: failed to alloc chk_table, not enough memory\n", |
| LCD_EXTERN_NAME); |
| return -1; |
| } |
| memset(chk_table, 0, cnt); |
| |
| ret = lcd_extern_i2c_read(i2c_bus, i2c_addr, chk_table, cnt); |
| if (ret) { |
| EXTERR("%s: i2c read error\n", __func__); |
| return -1; |
| } |
| |
| if (cmd_size == LCD_EXT_CMD_SIZE_DYNAMIC) |
| ret = lcd_extern_check_reg_dynamic_size(table, chk_table, cnt, flag); |
| else |
| ret = lcd_extern_check_reg_fixed_size(table, chk_table, cnt, flag); |
| |
| return ret; |
| } |
| |
| static int lcd_extern_power_on(void) |
| { |
| int ret = 0; |
| |
| lcd_extern_pinmux_set(1); |
| |
| /* check voltage is init or not */ |
| /* step1: ANX6862 */ |
| ret = lcd_extern_init_check(0); |
| if (ret) { |
| EXTPR("ANX6862: need init voltage and NVM write\n"); |
| /* init voltage */ |
| lcd_extern_power_cmd(0); |
| /* NVM write */ |
| lcd_extern_i2c_write(ext_config->i2c_bus, ext_config->i2c_addr, |
| ANX6862_NVM_wr, 2); |
| } |
| |
| /* step2: ANX7911 */ |
| ret = lcd_extern_init_check(1); |
| if (ret) { |
| EXTPR("ANX7911: need init voltage and NVM write\n"); |
| /* init voltage */ |
| lcd_extern_power_cmd(1); |
| /* NVM write */ |
| lcd_extern_i2c_write(ext_config->i2c_bus, ext_config->i2c_addr2, |
| ANX7911_NVM_wr, 2); |
| } |
| |
| EXTPR("%s\n", __func__); |
| return ret; |
| } |
| |
| static int lcd_extern_power_off(void) |
| { |
| lcd_extern_pinmux_set(0); |
| return 0; |
| } |
| |
| static int lcd_extern_driver_update(struct aml_lcd_extern_driver_s *ext_drv) |
| { |
| if (ext_drv == NULL) { |
| EXTERR("%s driver is null\n", LCD_EXTERN_NAME); |
| return -1; |
| } |
| if (ext_drv->config->table_init_loaded == 0) { |
| EXTERR("%s: tablet_init is invalid\n", ext_drv->config->name); |
| return -1; |
| } |
| |
| ext_drv->power_on = lcd_extern_power_on; |
| ext_drv->power_off = lcd_extern_power_off; |
| |
| return 0; |
| } |
| |
| int lcd_extern_i2c_ANX6862_7911_probe(struct aml_lcd_extern_driver_s *ext_drv) |
| { |
| int ret = 0; |
| |
| ext_config = ext_drv->config; |
| ret = lcd_extern_driver_update(ext_drv); |
| |
| if (lcd_debug_print_flag) |
| EXTPR("%s: %d\n", __func__, ret); |
| return ret; |
| } |
| |