drivers/misc/mediatek/lcm/nt35582_mcu_6575/nt35582_mcu_6575.c

   1 #ifndef BUILD_LK
   2 #include <linux/string.h>
   3 #endif
   4 #include "lcm_drv.h"
   5
   6
   7 // ---------------------------------------------------------------------------
   8 //  Local Constants
   9 // ---------------------------------------------------------------------------
  10
  11 #define FRAME_WIDTH  (480)
  12 #define FRAME_HEIGHT (800)
  13 #define LCM_ID       (0x5582)
  14
  15 // ---------------------------------------------------------------------------
  16 //  Local Variables
  17 // ---------------------------------------------------------------------------
  18
  19 static LCM_UTIL_FUNCS lcm_util = {0};
  20
  21 #define SET_RESET_PIN(v)    (lcm_util.set_reset_pin((v)))
  22
  23 #define UDELAY(n) (lcm_util.udelay(n))
  24 #define MDELAY(n) (lcm_util.mdelay(n))
  25
  26
  27 // ---------------------------------------------------------------------------
  28 //  Local Functions
  29 // ---------------------------------------------------------------------------
  30
  31 static __inline void send_ctrl_cmd(unsigned int cmd)
  32 {
  33     lcm_util.send_cmd(cmd);
  34 }
  35
  36 static __inline void send_data_cmd(unsigned int data)
  37 {
  38     lcm_util.send_data(data&0xff);
  39 }
  40
  41 static __inline unsigned short read_data_cmd(void)
  42 {
  43     return (unsigned short)(lcm_util.read_data());
  44 }
  45
  46 static __inline void set_lcm_register(unsigned int regIndex,
  47                                       unsigned int regData)
  48 {
  49     send_ctrl_cmd(regIndex);
  50     send_data_cmd(regData);
  51 }
  52
  53 static void init_lcm_registers(void)
  54 {
  55     send_ctrl_cmd(0x1100);//sleep out
  56     MDELAY(200);
  57
  58     set_lcm_register(0xC000,0x86);//power control PWCTR1
  59     set_lcm_register(0xC001,0x00);
  60     set_lcm_register(0xC002,0x86);
  61     set_lcm_register(0xC003,0x00);
  62     set_lcm_register(0xC100,0x45);
  63     set_lcm_register(0xC200,0x21);
  64     set_lcm_register(0xC202,0x02);
  65     set_lcm_register(0xB600,0x30);//SD_OP_SET
  66     set_lcm_register(0xB602,0x30);
  67     set_lcm_register(0xB100,0xA7);//wei zeng added
  68     set_lcm_register(0xC700,0x8F);//vcom
  69     set_lcm_register(0x3A00,0x06);//SET PIXEL_FORMAT,pre:0x55
  70
  71
  72     set_lcm_register(0xE000,0x0E);//gamma  GMACTRL1
  73     set_lcm_register(0xE001,0x14);
  74     set_lcm_register(0xE002,0x29);
  75     set_lcm_register(0xE003,0x3A);
  76     set_lcm_register(0xE004,0x1D);
  77     set_lcm_register(0xE005,0x30);
  78     set_lcm_register(0xE006,0x61);
  79     set_lcm_register(0xE007,0x3D);
  80     set_lcm_register(0xE008,0x22);
  81     set_lcm_register(0xE009,0x2A);
  82     set_lcm_register(0xE00A,0x87);
  83     set_lcm_register(0xE00B,0x16);
  84     set_lcm_register(0xE00C,0x3B);
  85     set_lcm_register(0xE00D,0x4C);
  86     set_lcm_register(0xE00E,0x78);
  87     set_lcm_register(0xE00F,0x96);
  88     set_lcm_register(0xE010,0x4A);
  89     set_lcm_register(0xE011,0x4D);
  90
  91     set_lcm_register(0xE100,0x0E);//GMACTRL2
  92     set_lcm_register(0xE101,0x14);
  93     set_lcm_register(0xE102,0x29);
  94     set_lcm_register(0xE103,0x3A);
  95     set_lcm_register(0xE104,0x1D);
  96     set_lcm_register(0xE105,0x30);
  97     set_lcm_register(0xE106,0x61);
  98     set_lcm_register(0xE107,0x3F);
  99     set_lcm_register(0xE108,0x20);
 100     set_lcm_register(0xE109,0x26);
 101     set_lcm_register(0xE10A,0x83);
 102     set_lcm_register(0xE10B,0x16);
 103     set_lcm_register(0xE10C,0x3B);
 104     set_lcm_register(0xE10D,0x4C);
 105     set_lcm_register(0xE10E,0x78);
 106     set_lcm_register(0xE10F,0x96);
 107     set_lcm_register(0xE110,0x4A);
 108     set_lcm_register(0xE111,0x4D);
 109
 110     set_lcm_register(0xE200,0x0E);//GMACTRL3
 111     set_lcm_register(0xE201,0x14);
 112     set_lcm_register(0xE202,0x29);
 113     set_lcm_register(0xE203,0x3A);
 114     set_lcm_register(0xE204,0x1D);
 115     set_lcm_register(0xE205,0x30);
 116     set_lcm_register(0xE206,0x61);
 117     set_lcm_register(0xE207,0x3D);
 118     set_lcm_register(0xE208,0x22);
 119     set_lcm_register(0xE209,0x2A);
 120     set_lcm_register(0xE20A,0x87);
 121     set_lcm_register(0xE20B,0x16);
 122     set_lcm_register(0xE20C,0x3B);
 123     set_lcm_register(0xE20D,0x4C);
 124     set_lcm_register(0xE20E,0x78);
 125     set_lcm_register(0xE20F,0x96);
 126     set_lcm_register(0xE210,0x4A);
 127     set_lcm_register(0xE211,0x4D);
 128
 129
 130     set_lcm_register(0xE300,0x0E);//GMACTRL4
 131     set_lcm_register(0xE301,0x14);
 132     set_lcm_register(0xE302,0x29);
 133     set_lcm_register(0xE303,0x3A);
 134     set_lcm_register(0xE304,0x1D);
 135     set_lcm_register(0xE305,0x30);
 136     set_lcm_register(0xE306,0x61);
 137     set_lcm_register(0xE307,0x3F);
 138     set_lcm_register(0xE308,0x20);
 139     set_lcm_register(0xE309,0x26);
 140     set_lcm_register(0xE30A,0x83);
 141     set_lcm_register(0xE30B,0x16);
 142     set_lcm_register(0xE30C,0x3B);
 143     set_lcm_register(0xE30D,0x4C);
 144     set_lcm_register(0xE30E,0x78);
 145     set_lcm_register(0xE30F,0x96);
 146     set_lcm_register(0xE310,0x4A);
 147     set_lcm_register(0xE311,0x4D);
 148
 149     set_lcm_register(0xE400,0x0E);//GMACTRL5
 150     set_lcm_register(0xE401,0x14);
 151     set_lcm_register(0xE402,0x29);
 152     set_lcm_register(0xE403,0x3A);
 153     set_lcm_register(0xE404,0x1D);
 154     set_lcm_register(0xE405,0x30);
 155     set_lcm_register(0xE406,0x61);
 156     set_lcm_register(0xE407,0x3D);
 157     set_lcm_register(0xE408,0x22);
 158     set_lcm_register(0xE409,0x2A);
 159     set_lcm_register(0xE40A,0x87);
 160     set_lcm_register(0xE40B,0x16);
 161     set_lcm_register(0xE40C,0x3B);
 162     set_lcm_register(0xE40D,0x4C);
 163     set_lcm_register(0xE40E,0x78);
 164     set_lcm_register(0xE40F,0x96);
 165     set_lcm_register(0xE410,0x4A);
 166     set_lcm_register(0xE411,0x4D);
 167
 168
 169     set_lcm_register(0xE500,0x0E);
 170     set_lcm_register(0xE501,0x14);
 171     set_lcm_register(0xE502,0x29);
 172     set_lcm_register(0xE503,0x3A);
 173     set_lcm_register(0xE504,0x1D);
 174     set_lcm_register(0xE505,0x30);
 175     set_lcm_register(0xE506,0x61);
 176     set_lcm_register(0xE507,0x3F);
 177     set_lcm_register(0xE508,0x20);
 178     set_lcm_register(0xE509,0x26);
 179     set_lcm_register(0xE50A,0x83);
 180     set_lcm_register(0xE50B,0x16);
 181     set_lcm_register(0xE50C,0x3B);
 182     set_lcm_register(0xE50D,0x4C);
 183     set_lcm_register(0xE50E,0x78);
 184     set_lcm_register(0xE50F,0x96);
 185     set_lcm_register(0xE510,0x4A);
 186     set_lcm_register(0xE511,0x4D);
 187
 188         // enable tering free
 189         set_lcm_register(0x3500,0x02);
 190
 191     set_lcm_register(0x3600,0x00);
 192     send_ctrl_cmd(0x2900);
 193     MDELAY(200);
 194     send_ctrl_cmd(0x2C00);//wei zeng
 195
 196 }
 197
 198
 199 // ---------------------------------------------------------------------------
 200 //  LCM Driver Implementations
 201 // ---------------------------------------------------------------------------
 202
 203 static void lcm_set_util_funcs(const LCM_UTIL_FUNCS *util)
 204 {
 205     memcpy(&lcm_util, util, sizeof(LCM_UTIL_FUNCS));
 206 }
 207
 208
 209 static void lcm_get_params(LCM_PARAMS *params)
 210 {
 211     memset(params, 0, sizeof(LCM_PARAMS));
 212
 213     params->type   = LCM_TYPE_DBI;
 214     params->ctrl   = LCM_CTRL_PARALLEL_DBI;
 215     params->width  = FRAME_WIDTH;
 216     params->height = FRAME_HEIGHT;
 217
 218     params->io_select_mode = 1; //note:this para is different between 6573 and 6575
 219
 220
 221     params->dbi.port                    = 0;  //DBI port must be 0 or 1 on mt6575, should not be 2
 222     params->dbi.data_width              = LCM_DBI_DATA_WIDTH_18BITS;
 223     params->dbi.data_format.color_order = LCM_COLOR_ORDER_RGB;
 224     params->dbi.data_format.trans_seq   = LCM_DBI_TRANS_SEQ_MSB_FIRST;
 225     params->dbi.data_format.padding     = LCM_DBI_PADDING_ON_LSB;
 226     params->dbi.data_format.format      = LCM_DBI_FORMAT_RGB666;
 227     params->dbi.data_format.width       = LCM_DBI_DATA_WIDTH_18BITS;
 228     params->dbi.cpu_write_bits          = LCM_DBI_CPU_WRITE_16_BITS;
 229     params->dbi.io_driving_current      = LCM_DRIVING_CURRENT_6575_8MA;
 230
 231     params->dbi.parallel.write_setup    = 1;
 232     params->dbi.parallel.write_hold     = 1;
 233     params->dbi.parallel.write_wait     = 3;
 234     params->dbi.parallel.read_setup     = 4;
 235         params->dbi.parallel.read_hold      = 0;
 236     params->dbi.parallel.read_latency   = 18;
 237         params->dbi.parallel.wait_period    = 1;
 238         params->dbi.parallel.cs_high_width  = 0; //cycles of cs high level between each transfer
 239         // enable tearing-free
 240     params->dbi.te_mode                 = 0;
 241     //params->dbi.te_mode                 = LCM_DBI_TE_MODE_VSYNC_ONLY;
 242     params->dbi.te_edge_polarity        = LCM_POLARITY_RISING;
 243 }
 244
 245
 246 static void lcm_init(void)
 247 {
 248     SET_RESET_PIN(0);
 249     MDELAY(25);
 250     SET_RESET_PIN(1);
 251     MDELAY(50);
 252
 253     init_lcm_registers();
 254 }
 255
 256
 257 static void lcm_suspend(void)
 258 {
 259     send_ctrl_cmd(0x1000);
 260     MDELAY(20);
 261 }
 262
 263
 264 static void lcm_resume(void)
 265 {
 266     send_ctrl_cmd(0x1100);
 267     MDELAY(200);
 268
 269     // xuecheng, do we need to write 0x2900??
 270     send_ctrl_cmd(0x2900);
 271 }
 272
 273 static void lcm_update(unsigned int x, unsigned int y,
 274                        unsigned int width, unsigned int height)
 275 {
 276     short  x0, y0, x1, y1;
 277         short   h_X_start,l_X_start,h_X_end,l_X_end,h_Y_start,l_Y_start,h_Y_end,l_Y_end;
 278
 279
 280     x0 = (short)x;
 281     y0 = (short)y;
 282     x1 = (short)x+width-1;
 283     y1 = (short)y+height-1;
 284
 285         h_X_start=((x0&0x0300)>>8);
 286         l_X_start=(x0&0x00FF);
 287         h_X_end=((x1&0x0300)>>8);
 288         l_X_end=(x1&0x00FF);
 289
 290         h_Y_start=((y0&0x0300)>>8);
 291         l_Y_start=(y0&0x00FF);
 292         h_Y_end=((y1&0x0300)>>8);
 293         l_Y_end=(y1&0x00FF);
 294
 295     send_ctrl_cmd( 0x2A00 );
 296     send_data_cmd( h_X_start);
 297     send_ctrl_cmd( 0x2A01 );
 298     send_data_cmd( l_X_start);
 299     send_ctrl_cmd( 0x2A02);
 300     send_data_cmd( h_X_end );
 301     send_ctrl_cmd( 0x2A03);
 302     send_data_cmd( l_X_end );
 303         send_ctrl_cmd( 0x2B00 );
 304     send_data_cmd( h_Y_start);
 305     send_ctrl_cmd( 0x2B01 );
 306     send_data_cmd( l_Y_start);
 307     send_ctrl_cmd( 0x2B02);
 308     send_data_cmd( h_Y_end );
 309     send_ctrl_cmd( 0x2B03);
 310     send_data_cmd( l_Y_end );
 311         send_ctrl_cmd(0x3601);  //enable HSM mode
 312         send_data_cmd(0x01);
 313     send_ctrl_cmd( 0x2C00 );
 314 }
 315
 316 static unsigned int lcm_compare_id(void)
 317 {
 318     unsigned int id = 0;
 319
 320         send_ctrl_cmd(0x1180);
 321     id = read_data_cmd();
 322
 323 #if defined(BUILD_UBOOT)
 324         printf("%s, id1 = 0x%08x\n", __func__, id);
 325 #endif
 326
 327         send_ctrl_cmd(0x1080);
 328         id |= (read_data_cmd() << 8);
 329
 330 #if defined(BUILD_UBOOT)
 331         printf("%s, id2 = 0x%08x\n", __func__, id);
 332 #endif
 333
 334         return (LCM_ID == id)?1:0;
 335 }
 336
 337 LCM_DRIVER nt35582_mcu_6575_lcm_drv =
 338 {
 339         .name                   = "nt35582_mcu_6575",
 340         .set_util_funcs = lcm_set_util_funcs,
 341         .get_params     = lcm_get_params,
 342         .init           = lcm_init,
 343         .suspend        = lcm_suspend,
 344         .resume         = lcm_resume,
 345         .update         = lcm_update,
 346         .compare_id     = lcm_compare_id
 347 };