79312afdde
Return generic coreboot error codes from the mb_adjust_cfg
callback used in mainboards instead of '-1' constant and
a driver-specific success-indicating define.
BUG=none
TEST=Boards siemens/mc_apl{1,4,5,7} and siemens/mc_ehl3
build correctly.
Change-Id: I5e0d4e67703db518ed239a845f43047f569b94ec
Signed-off-by: Jan Samek <jan.samek@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72071
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
60 lines
2.3 KiB
C
60 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef _I2C_PTN3460_H_
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#define _I2C_PTN3460_H_
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#include <types.h>
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#define PTN_EDID_OFF 0x00
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#define PTN_EDID_LEN 0x80
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#define PTN_CONFIG_OFF 0x80
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#define PTN_CONFIG_LEN 0x19
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#define PTN_FLASH_CFG_OFF 0xE8
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#define PTN_FLASH_CFG_LEN 0x04
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#define PTN_MAX_EDID_NUM 6
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#define PTN_ENABLE_EMULATION (1 << 0)
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/* Define some error codes that can be used */
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#define PTN_SUCCESS 0x00000000
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#define PTN_BUS_ERROR 0x10000000
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#define PTN_INVALID_EDID 0x20000000
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#define PTN_INVALID_EDID_BLOCK 0x30000000
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#define PTN_ERROR 0x40000000
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struct ptn_3460_config {
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u8 dp_interface_ctrl; /* DisplayPort interface control */
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u8 lvds_interface_ctrl1; /* LVDS interface control register 1 */
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u8 lvds_interface_ctrl2; /* LVDS interface control register 2 */
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u8 lvds_interface_ctrl3; /* LVDS interface control register 3 */
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u8 edid_rom_emulation; /* select which EDID-block is emulated */
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u8 edid_rom_access_ctrl; /* select which EDID block to map to 0..0x7F */
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u8 pwm_min[3]; /* smallest PWM frequency for back light */
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u8 pwm_max[3]; /* biggest PWM frequency for back light */
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u8 fast_link_ctrl; /* Fast link training control register */
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u8 pin_cfg_ctrl1; /* Pin configuration control register 1 */
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u8 pin_cfg_ctrl2; /* Pin configuration control register 2 */
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u8 pwm_default; /* Default PWM bit count in DPCD register */
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u16 pwm_value; /* Current PWM bit count in DPCD register */
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u8 pwm_default_freq; /* Default PWM frequency in DPCD register */
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u8 t3_timing; /* Panel T3 timing value */
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u8 t12_timing; /* Panel T12 timing value */
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u8 backlight_ctrl; /* Back light control register */
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u8 t2_delay; /* Panel T2 delay */
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u8 t4_timing; /* Panel T4 timing value */
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u8 t5_delay; /* Panel T5 delay */
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} __packed;
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struct ptn_3460_flash {
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u8 cmd; /* Flash command (erase or erase and flash) */
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u16 magic; /* Magic number needed by the flash algorithm */
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u8 trigger; /* Trigger for starting flash operation */
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} __packed;
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/* We need functions which we can call to get mainboard specific data */
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/* These functions can be implemented somewhere else but must exist. */
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extern enum cb_err mb_get_edid(uint8_t edid_data[0x80]);
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extern uint8_t mb_select_edid_table(void);
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extern enum cb_err mb_adjust_cfg(struct ptn_3460_config *cfg_ptr);
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#endif /* _I2C_PTN3460_H_ */
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