224 lines
6.2 KiB
C
224 lines
6.2 KiB
C
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/*
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* Copyright (c) 2012, The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of The Linux Foundation nor
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* the names of its contributors may be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <msm_panel.h>
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#include <platform/gpio.h>
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#include <debug.h>
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#include <err.h>
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#include "lcdc_truly.h"
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extern void spi_bit_bang_write(uint8_t, uint8_t, uint8_t, uint8_t);
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static char data1[] = { 0xff, 0x83, 0x57, };
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static char data2[] = { 0x03, };
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static char data3[] = { 0x00, 0x13, 0x1C, 0x1C, 0x83, 0x48, };
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static char data4[] = { 0x43, 0x06, 0x06, 0x06, };
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static char data5[] = { 0x53, };
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static char data6[] = { 0x02, 0x40, 0x00, 0x2a, 0x2a, 0x0d, 0x3f, };
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static char data7[] = { 0x70, 0x50, 0x01, 0x3c, 0xe8, 0x08, };
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static char data8[] = { 0x17, 0x0f, };
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static char data9[] = { 0x60};
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static char data10[] = { 0x00, 0x13, 0x1a, 0x29, 0x2d, 0x41, 0x49,
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0x52, 0x48, 0x41, 0x3c, 0x33, 0x30, 0x1c,
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0x19, 0x03, 0x00, 0x13, 0x1a, 0x29, 0x2d,
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0x41, 0x49, 0x52, 0x48, 0x41, 0x3c, 0x33,
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0x31, 0x1c, 0x19, 0x03, 0x00, 0x01,
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};
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static char data11[] = { 0x40, };
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static void lcdc_truly_panel_power(int on)
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{
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uint32_t func = 0;
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uint32_t pull = 0;
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uint32_t drv = 0;
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uint32_t dir = 0;
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dprintf(SPEW, "lcdc_truly_panel_power on = %d\n", on);
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if (on) {
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func = 0;
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dir = GPIO_OUTPUT;
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pull = GPIO_NO_PULL;
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drv = GPIO_2MA;
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/* config SPI, RESET and Backlight */
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gpio_tlmm_config(GPIO_CFG(SPI_MOSI, func, dir, pull, drv), 0);
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gpio_tlmm_config(GPIO_CFG(SPI_SCLK, func, dir, pull, drv), 0);
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gpio_tlmm_config(GPIO_CFG(SPI_CS, func, dir, pull, drv), 0);
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gpio_tlmm_config(GPIO_CFG(BACKLIGHT_EN, func, dir, pull, drv), 0);
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gpio_tlmm_config(GPIO_CFG(DISPLAY_RESET, func, dir, pull, drv), 0);
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gpio_tlmm_config(GPIO_CFG(LCD_LDO_2V8, func, dir, pull, drv), 0);
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gpio_tlmm_config(GPIO_CFG(LCD_LDO_1V8, func, dir, pull, drv), 0);
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gpio_config(SPI_MOSI, GPIO_OUTPUT);
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gpio_config(SPI_SCLK, GPIO_OUTPUT);
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gpio_config(SPI_CS, GPIO_OUTPUT);
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gpio_config(BACKLIGHT_EN, GPIO_OUTPUT);
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gpio_config(DISPLAY_RESET, GPIO_OUTPUT);
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gpio_config(LCD_LDO_2V8, GPIO_OUTPUT);
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gpio_config(LCD_LDO_1V8, GPIO_OUTPUT);
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/* turn on backlight */
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gpio_set(BACKLIGHT_EN, 1);
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/* turn on power */
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gpio_set(LCD_LDO_1V8, 1);
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gpio_set(LCD_LDO_2V8, 1);
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/* reset */
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gpio_set(DISPLAY_RESET, 1);
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/*
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* H/w requires delay between toggle
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* reset pin
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*/
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mdelay(20);
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gpio_set(DISPLAY_RESET, 0);
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mdelay(20);
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gpio_set(DISPLAY_RESET, 1);
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mdelay(20);
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} else {
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/* turn off backlight */
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gpio_set(BACKLIGHT_EN, 0);
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gpio_set(DISPLAY_RESET, 0);
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/* turn off power */
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gpio_set(LCD_LDO_1V8, 0);
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gpio_set(LCD_LDO_2V8, 0);
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}
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return;
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}
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static int truly_spi_write(char cmd, char *data, int num)
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{
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int i;
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gpio_set(SPI_CS, 0); /* cs low */
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/* command byte first */
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spi_bit_bang_write(SPI_SCLK, SPI_MOSI, 0, cmd);
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/* followed by parameter bytes */
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for(i = 0; i < num; i++) {
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if(data)
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spi_bit_bang_write(SPI_SCLK, SPI_MOSI, 1, data[i]);
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}
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gpio_set(SPI_MOSI, 1); /* mosi high */
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gpio_set(SPI_CS, 1); /* cs high */
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/*
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* H/W needs delay for gpio's to turn high
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*/
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udelay(10);
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return 0;
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}
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void lcdc_truly_disp_on(void)
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{
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int i;
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dprintf(SPEW, "lcdc_truly_disp_on\n");
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gpio_set(SPI_CS, 1); /* cs high */
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/*
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* This function uses delays as defined by the panel
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* vendor before writing to registers
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*/
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truly_spi_write(0xb9, data1, sizeof(data1));
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mdelay(20);
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truly_spi_write(0xcc, data2, sizeof(data2));
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truly_spi_write(0xb1, data3, sizeof(data3));
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truly_spi_write(0xb3, data4, sizeof(data4));
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truly_spi_write(0xb6, data5, sizeof(data5));
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truly_spi_write(0xb4, data6, sizeof(data6));
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truly_spi_write(0xc0, data7, sizeof(data7));
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truly_spi_write(0xe3, data8, sizeof(data8));
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truly_spi_write(0x3a, data9, sizeof(data9));
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truly_spi_write(0xe0, data10, sizeof(data10));
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truly_spi_write(0x36, data11, sizeof(data11));
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truly_spi_write(0x11, NULL, 0);
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mdelay(150);
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truly_spi_write(0x29, NULL, 0);
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mdelay(25);
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}
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void lcdc_truly_disp_off(void)
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{
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dprintf(SPEW, "lcdc_truly_disp_off\n");
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truly_spi_write(0x28, NULL, 0);
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mdelay(5);
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truly_spi_write(0x10, NULL, 0);
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}
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int lcdc_truly_panel_on(int on)
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{
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dprintf(SPEW, "lcdc_truly_panel_on\n");
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if (on) {
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lcdc_truly_panel_power(1);
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lcdc_truly_disp_on();
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} else {
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lcdc_truly_panel_power(0);
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lcdc_truly_disp_off();
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}
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return NO_ERROR;
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}
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int lcdc_truly_hvga_on()
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{
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return NO_ERROR;
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}
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int lcdc_truly_hvga_off()
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{
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return NO_ERROR;
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}
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void lcdc_truly_hvga_init(struct msm_panel_info *pinfo)
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{
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if (!pinfo)
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return;
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pinfo->xres = 320;
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pinfo->yres = 480;
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pinfo->type = LCDC_PANEL;
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pinfo->wait_cycle = 0;
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pinfo->bpp = 16;
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pinfo->clk_rate = 10240000;
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pinfo->lcdc.h_pulse_width = 8;
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pinfo->lcdc.h_back_porch = 16;
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pinfo->lcdc.h_front_porch = 4;
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pinfo->lcdc.hsync_skew = 0;
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pinfo->lcdc.v_pulse_width = 1;
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pinfo->lcdc.v_back_porch = 7;
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pinfo->lcdc.v_front_porch = 3;
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pinfo->on = lcdc_truly_hvga_on;
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pinfo->off = lcdc_truly_hvga_off;
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return;
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}
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