diff options
Diffstat (limited to 'src/mainboard/siemens/mc_apl1/variants/mc_apl4/ptn3460.c')
| -rw-r--r-- | src/mainboard/siemens/mc_apl1/variants/mc_apl4/ptn3460.c | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl4/ptn3460.c b/src/mainboard/siemens/mc_apl1/variants/mc_apl4/ptn3460.c deleted file mode 100644 index 47763ae5d8..0000000000 --- a/src/mainboard/siemens/mc_apl1/variants/mc_apl4/ptn3460.c +++ /dev/null @@ -1,172 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2014-2018 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 <hwilib.h> -#include <device/i2c_simple.h> -#include <types.h> -#include <variant/ptn3460.h> - -/* - * This function sets up the DP2LVDS-converter to be used with the appropriate - * lcd panel. - * - * @param *hwi_block Filename in CBFS of the block to use as HW-Info. - * @return 0 on success or HWI-Data/PTN error code. - */ -int ptn3460_init(const char *hwi_block) -{ - struct ptn_3460_config cfg; - int status; - uint8_t disp_con = 0, color_depth = 0; - uint8_t edid_data[PTN_EDID_LEN]; - int i; - - if (!hwi_block || hwilib_find_blocks(hwi_block) != CB_SUCCESS) { - printk(BIOS_ERR, "LCD: Info block \"%s\" not found!\n", - hwi_block); - return 1; - } - /* Get all needed information from hwinfo block. */ - if (hwilib_get_field(Edid, edid_data, sizeof(edid_data)) != - sizeof(edid_data)) { - printk(BIOS_ERR, "LCD: No EDID data available in %s\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; - } - /* - * Here, all the desired information for setting up DP2LVDS converter - * is present. Inside the converter, table 6 will be used for the - * timings. - */ - status = ptn3460_write_edid(6, edid_data); - if (status) - return status; - /* Select this table to be emulated. */ - ptn_select_edid(6); - /* Read PTN configuration data. */ - status = i2c_read_bytes(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, - PTN_CONFIG_OFF, (uint8_t *)&cfg, - sizeof(cfg)); - if (status) - return (PTN_BUS_ERROR | status); - /* Set up configuration data according to the hwinfo block we get. */ - cfg.dp_interface_ctrl = 0; - /* Use odd-bus for clock distribution only. */ - cfg.lvds_interface_ctrl1 = 0x01; - 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 signal (N vs. P). */ - cfg.lvds_interface_ctrl3 = 0x04; - /* Delay T2 (VDD to LVDS active) by 16 ms. */ - cfg.t2_delay = 1; - /* 250 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; - - /* Write back configuration data to PTN3460. */ - for (i = 0; i < sizeof(struct ptn_3460_config); i++) { - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, - PTN_CONFIG_OFF+i, - *(((uint8_t *)&cfg)+i)); - if (status) - return (PTN_BUS_ERROR | status); - } - - return PTN_NO_ERROR; -} - -/* - * This function writes one Extended Display Identification Data (EDID) - * structure to PTN3460. - * - * @param edid_num Number of EDID that must be written (0..6). - * @param *data Pointer to a buffer where data to write is stored in. - * @return 0 on success or error code. - */ -int ptn3460_write_edid(uint8_t edid_num, const uint8_t data[PTN_EDID_LEN]) -{ - int status; - int i; - - if (edid_num > PTN_MAX_EDID_NUM) - return PTN_INVALID_EDID; - - /* First enable access to the desired EDID table. */ - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, - PTN_CONFIG_OFF + 5, edid_num); - if (status) - return (PTN_BUS_ERROR | status); - - /* Now we can simply write EDID-data to ptn3460. */ - for (i = 0; i < PTN_EDID_LEN; i++) { - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, - PTN_EDID_OFF + i, data[i]); - if (status) - return (PTN_BUS_ERROR | status); - } - - return PTN_NO_ERROR; -} - -/* - * This function selects one of 7 EDID-tables inside PTN3460 which should be - * emulated on DisplayPort and turn emulation ON. - * - * @param edid_num Number of EDID to emulate (0..6). - * @return 0 on success or error code. - */ -int ptn_select_edid(uint8_t edid_num) -{ - int status; - uint8_t val; - - if (edid_num > PTN_MAX_EDID_NUM) - return PTN_INVALID_EDID; - /* Enable emulation of the desired EDID table. */ - val = (edid_num << 1) | 1; - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, - PTN_CONFIG_OFF + 4, val); - if (status) - return (PTN_BUS_ERROR | status); - else - return PTN_NO_ERROR; -} |