diff options
Diffstat (limited to 'src/mainboard/siemens/mc_tcu3/lcd_panel.c')
| -rw-r--r-- | src/mainboard/siemens/mc_tcu3/lcd_panel.c | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/src/mainboard/siemens/mc_tcu3/lcd_panel.c b/src/mainboard/siemens/mc_tcu3/lcd_panel.c deleted file mode 100644 index c4660ee8cc..0000000000 --- a/src/mainboard/siemens/mc_tcu3/lcd_panel.c +++ /dev/null @@ -1,173 +0,0 @@ -/* -* This file is part of the coreboot project. - * - * Copyright (C) 2014-2019 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. - */ - -#include <console/console.h> -#include <device/device.h> -#include <drivers/i2c/ptn3460/ptn3460.h> -#include <hwilib.h> -#include <string.h> -#include <types.h> - -#include "soc/gpio.h" -#include "lcd_panel.h" - -# define MAX_HWI_NAME_LENGTH 20 - -/** \brief Reads GPIOs used for LCD panel encoding and returns the 4 bit value - * @param no parameters - * @return LCD panel type encoded in 4 bits - */ -static u8 get_lcd_panel_type(void) -{ - u8 lcd_type_gpio; - - lcd_type_gpio = ((read_ssus_gpio(LCD_TYPE_GPIO_BIT3) << 3) | - (read_ssus_gpio(LCD_TYPE_GPIO_BIT2) << 2) | - (read_ssus_gpio(LCD_TYPE_GPIO_BIT1) << 1) | - (read_ssus_gpio(LCD_TYPE_GPIO_BIT0))); - /* There is an inverter in this signals so we need to invert them as well */ - return ((~lcd_type_gpio) & 0x0f); -} -/** \brief This function checks which LCD panel type is used with the mainboard - * and provides the name of the matching EDID data set in CBFS. - * @param Pointer to the filename in CBFS where the EDID data is located - * @return CB_SUCCESS on success otherwise CB_ERR - */ -static enum cb_err get_hwi_filename(char *hwi_block) -{ - u8 lcd_type; - enum cb_err ret = CB_SUCCESS; - - lcd_type = get_lcd_panel_type(); - printk(BIOS_INFO, "LCD: Found panel type %d\n", lcd_type); - - switch (lcd_type) { - case LCD_PANEL_TYPE_10_INCH: - strcpy(hwi_block, "hwinfo10.hex"); - break; - case LCD_PANEL_TYPE_12_INCH: - strcpy(hwi_block, "hwinfo12.hex"); - break; - case LCD_PANEL_TYPE_15_INCH: - strcpy(hwi_block, "hwinfo15.hex"); - break; - case LCD_PANEL_TYPE_19_INCH: - strcpy(hwi_block, "hwinfo19.hex"); - break; - case LCD_PANEL_TYPE_EDID: - strcpy(hwi_block, "hwinfo.hex"); - break; - default: - printk(BIOS_ERR, "LCD: No supported panel found.\n"); - ret = CB_ERR; - break; - } - return ret; -} - -/** \brief This function provides EDID data to the driver for DP2LVDS Bridge (PTN3460) - * @param edid_data pointer to EDID data in driver -*/ -enum cb_err mb_get_edid(uint8_t edid_data[0x80]) -{ - char hwi_block[MAX_HWI_NAME_LENGTH]; - - if (get_hwi_filename(hwi_block) != CB_SUCCESS) - return CB_ERR; - - if (hwilib_find_blocks(hwi_block) != CB_SUCCESS) { - printk(BIOS_ERR, "LCD: Info block \"%s\" not found!\n", hwi_block); - return CB_ERR; - } - - /* Get EDID data from hwinfo block */ - if (hwilib_get_field(Edid, edid_data, PTN_EDID_LEN) != PTN_EDID_LEN) { - printk(BIOS_ERR, "LCD: No EDID data available in %s\n", hwi_block); - return CB_ERR; - } - return CB_SUCCESS; -} - -/** \brief This function provides EDID block [0..6] to the driver for DP2LVDS Bridge (PTN3460) - * which has to be used. -*/ -uint8_t mb_select_edid_table(void) -{ - return 6; /* With this mainboard we use EDID block 6 for emulation in PTN3460. */ -} - -/** \brief Function to enable mainboard to adjust the config data of PTN3460. - * @param *cfg_ptr Pointer to the PTN config structure to modify. - * @return -1 on error; PTN_CFG_MODIFIED if data was modified and needs to be updated. -*/ -int mb_adjust_cfg(struct ptn_3460_config *cfg) -{ - char hwi_block[MAX_HWI_NAME_LENGTH]; - uint8_t disp_con = 0, color_depth = 0; - uint8_t hwid[4], tcu31_hwid[4] = {7, 9, 2, 0}; - - if (get_hwi_filename(hwi_block) != CB_SUCCESS) - return -1; - if (hwilib_find_blocks(hwi_block) != CB_SUCCESS) { - printk(BIOS_ERR, "LCD: Info block \"%s\" not found!\n", hwi_block); - return -1; - } - - if (hwilib_get_field(PF_DisplCon, &disp_con, sizeof(disp_con)) != sizeof(disp_con)) { - printk(BIOS_ERR, "LCD: Missing panel features from %s\n", hwi_block); - return -1; - } - if (hwilib_get_field(PF_Color_Depth, &color_depth, - sizeof(color_depth)) != sizeof(color_depth)) { - printk(BIOS_ERR, "LCD: Missing panel features from %s\n", hwi_block); - return -1; - } - /* Set up configuration data according to the hwinfo block we got. */ - cfg->dp_interface_ctrl = 0x00; - cfg->lvds_interface_ctrl1 = 0x00; - if (disp_con == PF_DISPLCON_LVDS_DUAL) { - /* Turn on dual LVDS lane and clock. */ - cfg->lvds_interface_ctrl1 |= 0x0b; - } - if (color_depth == PF_COLOR_DEPTH_6BIT) { - /* Use 18 bits per pixel. */ - cfg->lvds_interface_ctrl1 |= 0x20; - } - /* No clock spreading, 300 mV LVDS swing. */ - cfg->lvds_interface_ctrl2 = 0x03; - /* Swap LVDS even and odd lanes for HW-ID 7.9.2.0 only. */ - if (hwilib_get_field(HWID, hwid, sizeof(hwid)) == sizeof(hwid) && - !(memcmp(hwid, tcu31_hwid, sizeof(hwid)))) { - /* Swap LVDS even and odd lane. */ - cfg->lvds_interface_ctrl3 = 0x01; - } else { - /* no LVDS lane swap */ - cfg->lvds_interface_ctrl3 = 0x00; - } - /* Delay T2 (VDD to LVDS active) by 16 ms. */ - cfg->t2_delay = 1; - /* 500 ms from LVDS to backlight active. */ - cfg->t3_timing = 10; - /* 1 second re-power delay. */ - cfg->t12_timing = 20; - /* 150 ms backlight off to LVDS inactive. */ - cfg->t4_timing = 3; - /* Delay T5 (LVDS to VDD inactive) by 16 ms. */ - cfg->t5_delay = 1; - /* Enable backlight control. */ - cfg->backlight_ctrl = 0; - - return PTN_CFG_MODIFIED; -} |