Channagoud Kadabi | 43000a6 | 2012-06-28 18:23:24 +0530 | [diff] [blame] | 1 | /* |
Duy Truong | f3ac7b3 | 2013-02-13 01:07:28 -0800 | [diff] [blame] | 2 | * Copyright (c) 2012, The Linux Foundation. All rights reserved. |
Channagoud Kadabi | 43000a6 | 2012-06-28 18:23:24 +0530 | [diff] [blame] | 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions |
| 6 | * are met: |
| 7 | * * Redistributions of source code must retain the above copyright |
| 8 | * notice, this list of conditions and the following disclaimer. |
| 9 | * * Redistributions in binary form must reproduce the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer in |
| 11 | * the documentation and/or other materials provided with the |
| 12 | * distribution. |
Duy Truong | f3ac7b3 | 2013-02-13 01:07:28 -0800 | [diff] [blame] | 13 | * * Neither the name of The Linux Foundation nor |
Channagoud Kadabi | 43000a6 | 2012-06-28 18:23:24 +0530 | [diff] [blame] | 14 | * the names of its contributors may be used to endorse or promote |
| 15 | * products derived from this software without specific prior written |
| 16 | * permission. |
| 17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 19 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| 21 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| 22 | * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 23 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| 24 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| 25 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| 26 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 27 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 28 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 29 | * SUCH DAMAGE. |
| 30 | */ |
| 31 | #include <msm_panel.h> |
| 32 | #include <platform/gpio.h> |
| 33 | #include <debug.h> |
| 34 | #include <err.h> |
| 35 | #include "lcdc_truly.h" |
| 36 | |
| 37 | extern void spi_bit_bang_write(uint8_t, uint8_t, uint8_t, uint8_t); |
| 38 | |
| 39 | static char data1[] = { 0xff, 0x83, 0x57, }; |
| 40 | static char data2[] = { 0x03, }; |
| 41 | static char data3[] = { 0x00, 0x13, 0x1C, 0x1C, 0x83, 0x48, }; |
| 42 | static char data4[] = { 0x43, 0x06, 0x06, 0x06, }; |
| 43 | static char data5[] = { 0x53, }; |
| 44 | static char data6[] = { 0x02, 0x40, 0x00, 0x2a, 0x2a, 0x0d, 0x3f, }; |
| 45 | static char data7[] = { 0x70, 0x50, 0x01, 0x3c, 0xe8, 0x08, }; |
| 46 | static char data8[] = { 0x17, 0x0f, }; |
| 47 | static char data9[] = { 0x60}; |
| 48 | static char data10[] = { 0x00, 0x13, 0x1a, 0x29, 0x2d, 0x41, 0x49, |
| 49 | 0x52, 0x48, 0x41, 0x3c, 0x33, 0x30, 0x1c, |
| 50 | 0x19, 0x03, 0x00, 0x13, 0x1a, 0x29, 0x2d, |
| 51 | 0x41, 0x49, 0x52, 0x48, 0x41, 0x3c, 0x33, |
| 52 | 0x31, 0x1c, 0x19, 0x03, 0x00, 0x01, |
| 53 | }; |
| 54 | static char data11[] = { 0x40, }; |
| 55 | |
| 56 | static void lcdc_truly_panel_power(int on) |
| 57 | { |
| 58 | uint32_t func = 0; |
| 59 | uint32_t pull = 0; |
| 60 | uint32_t drv = 0; |
| 61 | uint32_t dir = 0; |
| 62 | |
| 63 | dprintf(SPEW, "lcdc_truly_panel_power on = %d\n", on); |
| 64 | |
| 65 | if (on) { |
| 66 | func = 0; |
| 67 | dir = GPIO_OUTPUT; |
| 68 | pull = GPIO_NO_PULL; |
| 69 | drv = GPIO_2MA; |
| 70 | |
| 71 | /* config SPI, RESET and Backlight */ |
| 72 | gpio_tlmm_config(GPIO_CFG(SPI_MOSI, func, dir, pull, drv), 0); |
| 73 | gpio_tlmm_config(GPIO_CFG(SPI_SCLK, func, dir, pull, drv), 0); |
| 74 | gpio_tlmm_config(GPIO_CFG(SPI_CS, func, dir, pull, drv), 0); |
| 75 | gpio_tlmm_config(GPIO_CFG(BACKLIGHT_EN, func, dir, pull, drv), 0); |
| 76 | gpio_tlmm_config(GPIO_CFG(DISPLAY_RESET, func, dir, pull, drv), 0); |
| 77 | gpio_tlmm_config(GPIO_CFG(LCD_LDO_2V8, func, dir, pull, drv), 0); |
| 78 | gpio_tlmm_config(GPIO_CFG(LCD_LDO_1V8, func, dir, pull, drv), 0); |
| 79 | |
| 80 | gpio_config(SPI_MOSI, GPIO_OUTPUT); |
| 81 | gpio_config(SPI_SCLK, GPIO_OUTPUT); |
| 82 | gpio_config(SPI_CS, GPIO_OUTPUT); |
| 83 | gpio_config(BACKLIGHT_EN, GPIO_OUTPUT); |
| 84 | gpio_config(DISPLAY_RESET, GPIO_OUTPUT); |
| 85 | gpio_config(LCD_LDO_2V8, GPIO_OUTPUT); |
| 86 | gpio_config(LCD_LDO_1V8, GPIO_OUTPUT); |
| 87 | |
| 88 | /* turn on backlight */ |
| 89 | gpio_set(BACKLIGHT_EN, 1); |
| 90 | /* turn on power */ |
| 91 | gpio_set(LCD_LDO_1V8, 1); |
| 92 | gpio_set(LCD_LDO_2V8, 1); |
| 93 | |
| 94 | /* reset */ |
| 95 | gpio_set(DISPLAY_RESET, 1); |
| 96 | /* |
| 97 | * H/w requires delay between toggle |
| 98 | * reset pin |
| 99 | */ |
| 100 | mdelay(20); |
| 101 | gpio_set(DISPLAY_RESET, 0); |
| 102 | mdelay(20); |
| 103 | gpio_set(DISPLAY_RESET, 1); |
| 104 | mdelay(20); |
| 105 | } else { |
| 106 | /* turn off backlight */ |
| 107 | gpio_set(BACKLIGHT_EN, 0); |
| 108 | |
| 109 | gpio_set(DISPLAY_RESET, 0); |
| 110 | |
| 111 | /* turn off power */ |
| 112 | gpio_set(LCD_LDO_1V8, 0); |
| 113 | gpio_set(LCD_LDO_2V8, 0); |
| 114 | } |
| 115 | return; |
| 116 | } |
| 117 | |
| 118 | static int truly_spi_write(char cmd, char *data, int num) |
| 119 | { |
| 120 | int i; |
| 121 | |
| 122 | gpio_set(SPI_CS, 0); /* cs low */ |
| 123 | /* command byte first */ |
| 124 | spi_bit_bang_write(SPI_SCLK, SPI_MOSI, 0, cmd); |
| 125 | /* followed by parameter bytes */ |
| 126 | for(i = 0; i < num; i++) { |
| 127 | if(data) |
| 128 | spi_bit_bang_write(SPI_SCLK, SPI_MOSI, 1, data[i]); |
| 129 | } |
| 130 | gpio_set(SPI_MOSI, 1); /* mosi high */ |
| 131 | gpio_set(SPI_CS, 1); /* cs high */ |
| 132 | /* |
| 133 | * H/W needs delay for gpio's to turn high |
| 134 | */ |
| 135 | udelay(10); |
| 136 | return 0; |
| 137 | } |
| 138 | |
| 139 | void lcdc_truly_disp_on(void) |
| 140 | { |
| 141 | int i; |
| 142 | |
| 143 | dprintf(SPEW, "lcdc_truly_disp_on\n"); |
| 144 | |
| 145 | gpio_set(SPI_CS, 1); /* cs high */ |
| 146 | /* |
| 147 | * This function uses delays as defined by the panel |
| 148 | * vendor before writing to registers |
| 149 | */ |
| 150 | truly_spi_write(0xb9, data1, sizeof(data1)); |
| 151 | mdelay(20); |
| 152 | truly_spi_write(0xcc, data2, sizeof(data2)); |
| 153 | truly_spi_write(0xb1, data3, sizeof(data3)); |
| 154 | truly_spi_write(0xb3, data4, sizeof(data4)); |
| 155 | truly_spi_write(0xb6, data5, sizeof(data5)); |
| 156 | truly_spi_write(0xb4, data6, sizeof(data6)); |
| 157 | truly_spi_write(0xc0, data7, sizeof(data7)); |
| 158 | truly_spi_write(0xe3, data8, sizeof(data8)); |
| 159 | truly_spi_write(0x3a, data9, sizeof(data9)); |
| 160 | truly_spi_write(0xe0, data10, sizeof(data10)); |
| 161 | truly_spi_write(0x36, data11, sizeof(data11)); |
| 162 | truly_spi_write(0x11, NULL, 0); |
| 163 | mdelay(150); |
| 164 | truly_spi_write(0x29, NULL, 0); |
| 165 | mdelay(25); |
| 166 | } |
| 167 | |
| 168 | void lcdc_truly_disp_off(void) |
| 169 | { |
| 170 | dprintf(SPEW, "lcdc_truly_disp_off\n"); |
| 171 | truly_spi_write(0x28, NULL, 0); |
| 172 | mdelay(5); |
| 173 | truly_spi_write(0x10, NULL, 0); |
| 174 | } |
| 175 | |
| 176 | int lcdc_truly_panel_on(int on) |
| 177 | { |
| 178 | dprintf(SPEW, "lcdc_truly_panel_on\n"); |
| 179 | if (on) { |
| 180 | lcdc_truly_panel_power(1); |
| 181 | lcdc_truly_disp_on(); |
| 182 | } else { |
| 183 | lcdc_truly_panel_power(0); |
| 184 | lcdc_truly_disp_off(); |
| 185 | } |
| 186 | return NO_ERROR; |
| 187 | } |
| 188 | |
| 189 | int lcdc_truly_hvga_on() |
| 190 | { |
| 191 | return NO_ERROR; |
| 192 | } |
| 193 | |
| 194 | int lcdc_truly_hvga_off() |
| 195 | { |
| 196 | return NO_ERROR; |
| 197 | } |
| 198 | |
| 199 | void lcdc_truly_hvga_init(struct msm_panel_info *pinfo) |
| 200 | { |
| 201 | if (!pinfo) |
| 202 | return; |
| 203 | |
| 204 | pinfo->xres = 320; |
| 205 | pinfo->yres = 480; |
| 206 | |
| 207 | pinfo->type = LCDC_PANEL; |
| 208 | pinfo->wait_cycle = 0; |
| 209 | pinfo->bpp = 16; |
| 210 | pinfo->clk_rate = 10240000; |
| 211 | pinfo->lcdc.h_pulse_width = 8; |
| 212 | pinfo->lcdc.h_back_porch = 16; |
| 213 | pinfo->lcdc.h_front_porch = 4; |
| 214 | pinfo->lcdc.hsync_skew = 0; |
| 215 | pinfo->lcdc.v_pulse_width = 1; |
| 216 | pinfo->lcdc.v_back_porch = 7; |
| 217 | pinfo->lcdc.v_front_porch = 3; |
| 218 | |
| 219 | pinfo->on = lcdc_truly_hvga_on; |
| 220 | pinfo->off = lcdc_truly_hvga_off; |
| 221 | |
| 222 | return; |
| 223 | } |