diff options
Diffstat (limited to 'src/drivers/i2c/ptn3460/ptn3460.h')
| -rw-r--r-- | src/drivers/i2c/ptn3460/ptn3460.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/src/drivers/i2c/ptn3460/ptn3460.h b/src/drivers/i2c/ptn3460/ptn3460.h new file mode 100644 index 0000000000..4b9834eb9d --- /dev/null +++ b/src/drivers/i2c/ptn3460/ptn3460.h @@ -0,0 +1,73 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2019 Siemens AG + * + * 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; version 2 of the License. + * + * 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. + */ + +#ifndef _I2C_PTN3460_H_ +#define _I2C_PTN3460_H_ + +#include <stdint.h> + +#define PTN_EDID_OFF 0x00 +#define PTN_EDID_LEN 0x80 +#define PTN_CONFIG_OFF 0x80 +#define PTN_CONFIG_LEN 0x19 +#define PTN_FLASH_CFG_OFF 0xE8 +#define PTN_FLASH_CFG_LEN 0x04 +#define PTN_MAX_EDID_NUM 6 +#define PTN_ENABLE_EMULATION (1 << 0) + +/* Define some error codes that can be used */ +#define PTN_SUCCESS 0x00000000 +#define PTN_CFG_MODIFIED 0x00000001 +#define PTN_BUS_ERROR 0x10000000 +#define PTN_INVALID_EDID 0x20000000 +#define PTN_INVALID_EDID_BLOCK 0x30000000 +#define PTN_ERROR 0x40000000 + +struct ptn_3460_config { + u8 dp_interface_ctrl; /* DisplayPort interface control */ + u8 lvds_interface_ctrl1; /* LVDS interface control register 1 */ + u8 lvds_interface_ctrl2; /* LVDS interface control register 2 */ + u8 lvds_interface_ctrl3; /* LVDS interface control register 3 */ + u8 edid_rom_emulation; /* select which EDID-block is emulated */ + u8 edid_rom_access_ctrl; /* select which EDID block to map to 0..0x7F */ + u8 pwm_min[3]; /* smallest PWM frequency for back light */ + u8 pwm_max[3]; /* biggest PWM frequency for back light */ + u8 fast_link_ctrl; /* Fast link training control register */ + u8 pin_cfg_ctrl1; /* Pin configuration control register 1 */ + u8 pin_cfg_ctrl2; /* Pin configuration control register 2 */ + u8 pwm_default; /* Default PWM bit count in DPCD register */ + u16 pwm_value; /* Current PWM bit count in DPCD register */ + u8 pwm_default_freq; /* Default PWM frequency in DPCD register */ + u8 t3_timing; /* Panel T3 timing value */ + u8 t12_timing; /* Panel T12 timing value */ + u8 backlight_ctrl; /* Back light control register */ + u8 t2_delay; /* Panel T2 delay */ + u8 t4_timing; /* Panel T4 timing value */ + u8 t5_delay; /* Panel T5 delay */ +} __packed; + +struct ptn_3460_flash { + u8 cmd; /* Flash command (erase or erase and flash) */ + u16 magic; /* Magic number needed by the flash algorithm */ + u8 trigger; /* Trigger for starting flash operation */ +} __packed; + +/* We need functions which we can call to get mainboard specific data */ +/* These functions can be implemented somewhere else but must exist. */ +extern enum cb_err mb_get_edid(uint8_t edid_data[0x80]); +extern uint8_t mb_select_edid_table(void); +extern int mb_adjust_cfg(struct ptn_3460_config *cfg_ptr); + +#endif /* _I2C_PTN3460_H_ */ |