drivers/video/omap/lcd_sx1.c

   1 /*
   2  * LCD panel support for the Siemens SX1 mobile phone
   3  *
   4  * Current version : Vovan888@gmail.com, great help from FCA00000
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the
   8  * Free Software Foundation; either version 2 of the License, or (at your
   9  * option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19  */
  20
  21 #include <linux/module.h>
  22 #include <linux/platform_device.h>
  23 #include <linux/delay.h>
  24 #include <linux/io.h>
  25
  26 #include <asm/arch/gpio.h>
  27 #include <asm/arch/omapfb.h>
  28 #include <asm/arch/mcbsp.h>
  29 #include <asm/arch/mux.h>
  30
  31 /*
  32  * OMAP310 GPIO registers
  33  */
  34 #define GPIO_DATA_INPUT         0xfffce000
  35 #define GPIO_DATA_OUTPUT        0xfffce004
  36 #define GPIO_DIR_CONTROL        0xfffce008
  37 #define GPIO_INT_CONTROL        0xfffce00c
  38 #define GPIO_INT_MASK           0xfffce010
  39 #define GPIO_INT_STATUS         0xfffce014
  40 #define GPIO_PIN_CONTROL        0xfffce018
  41
  42
  43 #define A_LCD_SSC_RD    3
  44 #define A_LCD_SSC_SD    7
  45 #define _A_LCD_RESET    9
  46 #define _A_LCD_SSC_CS   12
  47 #define _A_LCD_SSC_A0   13
  48
  49 #define DSP_REG         0xE1017024
  50
  51 const unsigned char INIT_1[12] = {
  52         0x1C, 0x02, 0x88, 0x00, 0x1E, 0xE0, 0x00, 0xDC, 0x00, 0x02, 0x00
  53 };
  54
  55 const unsigned char INIT_2[127] = {
  56         0x15, 0x00, 0x29, 0x00, 0x3E, 0x00, 0x51, 0x00,
  57         0x65, 0x00, 0x7A, 0x00, 0x8D, 0x00, 0xA1, 0x00,
  58         0xB6, 0x00, 0xC7, 0x00, 0xD8, 0x00, 0xEB, 0x00,
  59         0xFB, 0x00, 0x0B, 0x01, 0x1B, 0x01, 0x27, 0x01,
  60         0x34, 0x01, 0x41, 0x01, 0x4C, 0x01, 0x55, 0x01,
  61         0x5F, 0x01, 0x68, 0x01, 0x70, 0x01, 0x78, 0x01,
  62         0x7E, 0x01, 0x86, 0x01, 0x8C, 0x01, 0x94, 0x01,
  63         0x9B, 0x01, 0xA1, 0x01, 0xA4, 0x01, 0xA9, 0x01,
  64         0xAD, 0x01, 0xB2, 0x01, 0xB7, 0x01, 0xBC, 0x01,
  65         0xC0, 0x01, 0xC4, 0x01, 0xC8, 0x01, 0xCB, 0x01,
  66         0xCF, 0x01, 0xD2, 0x01, 0xD5, 0x01, 0xD8, 0x01,
  67         0xDB, 0x01, 0xE0, 0x01, 0xE3, 0x01, 0xE6, 0x01,
  68         0xE8, 0x01, 0xEB, 0x01, 0xEE, 0x01, 0xF1, 0x01,
  69         0xF3, 0x01, 0xF8, 0x01, 0xF9, 0x01, 0xFC, 0x01,
  70         0x00, 0x02, 0x03, 0x02, 0x07, 0x02, 0x09, 0x02,
  71         0x0E, 0x02, 0x13, 0x02, 0x1C, 0x02, 0x00
  72 };
  73
  74 const unsigned char INIT_3[15] = {
  75         0x14, 0x26, 0x33, 0x3D, 0x45, 0x4D, 0x53, 0x59,
  76         0x5E, 0x63, 0x67, 0x6D, 0x71, 0x78, 0xFF
  77 };
  78
  79 static void epson_sendbyte(int flag, unsigned char byte)
  80 {
  81         int i, shifter = 0x80;
  82
  83         if (!flag)
  84                 omap_set_gpio_dataout(_A_LCD_SSC_A0, 0);
  85         mdelay(2);
  86         omap_set_gpio_dataout(A_LCD_SSC_RD, 1);
  87
  88         omap_set_gpio_dataout(A_LCD_SSC_SD, flag);
  89
  90         OMAP_MCBSP_WRITE(OMAP1510_MCBSP3_BASE, PCR0, 0x2200);
  91         OMAP_MCBSP_WRITE(OMAP1510_MCBSP3_BASE, PCR0, 0x2202);
  92         for (i = 0; i < 8; i++) {
  93                 OMAP_MCBSP_WRITE(OMAP1510_MCBSP3_BASE, PCR0, 0x2200);
  94                 omap_set_gpio_dataout(A_LCD_SSC_SD, shifter & byte);
  95                 OMAP_MCBSP_WRITE(OMAP1510_MCBSP3_BASE, PCR0, 0x2202);
  96                 shifter >>= 1;
  97         }
  98         omap_set_gpio_dataout(_A_LCD_SSC_A0, 1);
  99 }
 100
 101 static void init_system(void)
 102 {
 103         omap_mcbsp_request(OMAP_MCBSP3);
 104         omap_mcbsp_stop(OMAP_MCBSP3);
 105 }
 106
 107 static void setup_GPIO(void)
 108 {
 109         /* new wave */
 110         omap_request_gpio(A_LCD_SSC_RD);
 111         omap_request_gpio(A_LCD_SSC_SD);
 112         omap_request_gpio(_A_LCD_RESET);
 113         omap_request_gpio(_A_LCD_SSC_CS);
 114         omap_request_gpio(_A_LCD_SSC_A0);
 115
 116         /* set all GPIOs to output */
 117         omap_set_gpio_direction(A_LCD_SSC_RD, 0);
 118         omap_set_gpio_direction(A_LCD_SSC_SD, 0);
 119         omap_set_gpio_direction(_A_LCD_RESET, 0);
 120         omap_set_gpio_direction(_A_LCD_SSC_CS, 0);
 121         omap_set_gpio_direction(_A_LCD_SSC_A0, 0);
 122
 123         /* set GPIO data */
 124         omap_set_gpio_dataout(A_LCD_SSC_RD, 1);
 125         omap_set_gpio_dataout(A_LCD_SSC_SD, 0);
 126         omap_set_gpio_dataout(_A_LCD_RESET, 0);
 127         omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
 128         omap_set_gpio_dataout(_A_LCD_SSC_A0, 1);
 129 }
 130
 131 static void display_init(void)
 132 {
 133         int i;
 134
 135         omap_cfg_reg(MCBSP3_CLKX);
 136
 137         mdelay(2);
 138         setup_GPIO();
 139         mdelay(2);
 140
 141         /* reset LCD */
 142         omap_set_gpio_dataout(A_LCD_SSC_SD, 1);
 143         epson_sendbyte(0, 0x25);
 144
 145         omap_set_gpio_dataout(_A_LCD_RESET, 0);
 146         mdelay(10);
 147         omap_set_gpio_dataout(_A_LCD_RESET, 1);
 148
 149         omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
 150         mdelay(2);
 151         omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
 152
 153         /* init LCD, phase 1 */
 154         epson_sendbyte(0, 0xCA);
 155         for (i = 0; i < 10; i++)
 156                 epson_sendbyte(1, INIT_1[i]);
 157         omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
 158         omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
 159
 160         /* init LCD phase 2 */
 161         epson_sendbyte(0, 0xCB);
 162         for (i = 0; i < 125; i++)
 163                 epson_sendbyte(1, INIT_2[i]);
 164         omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
 165         omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
 166
 167         /* init LCD phase 2a */
 168         epson_sendbyte(0, 0xCC);
 169         for (i = 0; i < 14; i++)
 170                 epson_sendbyte(1, INIT_3[i]);
 171         omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
 172         omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
 173
 174         /* init LCD phase 3 */
 175         epson_sendbyte(0, 0xBC);
 176         epson_sendbyte(1, 0x08);
 177         omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
 178         omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
 179
 180         /* init LCD phase 4 */
 181         epson_sendbyte(0, 0x07);
 182         epson_sendbyte(1, 0x05);
 183         omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
 184         omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
 185
 186         /* init LCD phase 5 */
 187         epson_sendbyte(0, 0x94);
 188         omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
 189         omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
 190
 191         /* init LCD phase 6 */
 192         epson_sendbyte(0, 0xC6);
 193         epson_sendbyte(1, 0x80);
 194         omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
 195         mdelay(100); /* used to be 1000 */
 196         omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
 197
 198         /* init LCD phase 7 */
 199         epson_sendbyte(0, 0x16);
 200         epson_sendbyte(1, 0x02);
 201         epson_sendbyte(1, 0x00);
 202         epson_sendbyte(1, 0xB1);
 203         epson_sendbyte(1, 0x00);
 204         omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
 205         omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
 206
 207         /* init LCD phase 8 */
 208         epson_sendbyte(0, 0x76);
 209         epson_sendbyte(1, 0x00);
 210         epson_sendbyte(1, 0x00);
 211         epson_sendbyte(1, 0xDB);
 212         epson_sendbyte(1, 0x00);
 213         omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
 214         omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
 215
 216         /* init LCD phase 9 */
 217         epson_sendbyte(0, 0xAF);
 218         omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
 219 }
 220
 221 static int sx1_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
 222 {
 223         return 0;
 224 }
 225
 226 static void sx1_panel_cleanup(struct lcd_panel *panel)
 227 {
 228 }
 229
 230 static void sx1_panel_disable(struct lcd_panel *panel)
 231 {
 232         printk(KERN_INFO "SX1: LCD panel disable\n");
 233         sx1_setmmipower(0);
 234         omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
 235
 236         epson_sendbyte(0, 0x25);
 237         omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
 238
 239         epson_sendbyte(0, 0xAE);
 240         omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
 241         mdelay(100);
 242         omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
 243
 244         epson_sendbyte(0, 0x95);
 245         omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
 246 }
 247
 248 static int sx1_panel_enable(struct lcd_panel *panel)
 249 {
 250         printk(KERN_INFO "lcd_sx1: LCD panel enable\n");
 251         init_system();
 252         display_init();
 253
 254         sx1_setmmipower(1);
 255         sx1_setbacklight(0x18);
 256         sx1_setkeylight (0x06);
 257         return 0;
 258 }
 259
 260
 261 static unsigned long sx1_panel_get_caps(struct lcd_panel *panel)
 262 {
 263         return 0;
 264 }
 265
 266 struct lcd_panel sx1_panel = {
 267         .name           = "sx1",
 268         .config         = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC |
 269                           OMAP_LCDC_INV_HSYNC | OMAP_LCDC_INV_PIX_CLOCK |
 270                           OMAP_LCDC_INV_OUTPUT_EN,
 271
 272         .x_res          = 176,
 273         .y_res          = 220,
 274         .data_lines     = 16,
 275         .bpp            = 16,
 276         .hsw            = 5,
 277         .hfp            = 5,
 278         .hbp            = 5,
 279         .vsw            = 2,
 280         .vfp            = 1,
 281         .vbp            = 1,
 282         .pixel_clock    = 1500,
 283
 284         .init           = sx1_panel_init,
 285         .cleanup        = sx1_panel_cleanup,
 286         .enable         = sx1_panel_enable,
 287         .disable        = sx1_panel_disable,
 288         .get_caps       = sx1_panel_get_caps,
 289 };
 290
 291 static int sx1_panel_probe(struct platform_device *pdev)
 292 {
 293         omapfb_register_panel(&sx1_panel);
 294         return 0;
 295 }
 296
 297 static int sx1_panel_remove(struct platform_device *pdev)
 298 {
 299         return 0;
 300 }
 301
 302 static int sx1_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
 303 {
 304         return 0;
 305 }
 306
 307 static int sx1_panel_resume(struct platform_device *pdev)
 308 {
 309         return 0;
 310 }
 311
 312 struct platform_driver sx1_panel_driver = {
 313         .probe          = sx1_panel_probe,
 314         .remove         = sx1_panel_remove,
 315         .suspend        = sx1_panel_suspend,
 316         .resume         = sx1_panel_resume,
 317         .driver = {
 318                 .name   = "lcd_sx1",
 319                 .owner  = THIS_MODULE,
 320         },
 321 };
 322
 323 static int sx1_panel_drv_init(void)
 324 {
 325         return platform_driver_register(&sx1_panel_driver);
 326 }
 327
 328 static void sx1_panel_drv_cleanup(void)
 329 {
 330         platform_driver_unregister(&sx1_panel_driver);
 331 }
 332
 333 module_init(sx1_panel_drv_init);
 334 module_exit(sx1_panel_drv_cleanup);