drivers/video/rockchip/transmitter/rk610_lcd.c

   1 #include <linux/fb.h>
   2 #include <linux/delay.h>
   3 #include <mach/gpio.h>
   4 #include <mach/iomux.h>
   5 #include <mach/board.h>
   6 #include "rk610_lcd.h"
   7 #include <linux/mfd/rk610_core.h>
   8 #include <linux/rk_fb.h>
   9 #include "../hdmi/rk_hdmi.h"
  10
  11 static struct rk610_lcd_info *g_lcd_inf = NULL;
  12 //static int rk610_scaler_read_p0_reg(struct i2c_client *client, char reg, char *val)
  13 //{
  14         //return i2c_master_reg8_recv(client, reg, val, 1, 100*1000) > 0? 0: -EINVAL;
  15 //}
  16
  17 static int rk610_scaler_write_p0_reg(struct i2c_client *client, char reg, char *val)
  18 {
  19         return i2c_master_reg8_send(client, reg, val, 1, 100*1000) > 0? 0: -EINVAL;
  20 }
  21 static void rk610_scaler_pll_enable(struct i2c_client *client)
  22 {
  23     char c;
  24     RK610_DBG(&client->dev,"%s \n",__FUNCTION__);
  25
  26     g_lcd_inf->scl_inf.pll_pwr = ENABLE;
  27
  28     c = S_PLL_PWR(0)|S_PLL_RESET(0)|S_PLL_BYPASS(0);
  29         rk610_scaler_write_p0_reg(client, S_PLL_CON2, &c);
  30 }
  31 static void rk610_scaler_pll_disable(struct i2c_client *client)
  32 {
  33     char c;
  34     RK610_DBG(&client->dev,"%s \n",__FUNCTION__);
  35
  36     g_lcd_inf->scl_inf.pll_pwr = DISABLE;
  37
  38     c = S_PLL_PWR(1) |S_PLL_RESET(0) |S_PLL_BYPASS(1);
  39         rk610_scaler_write_p0_reg(client, S_PLL_CON2, &c);
  40 }
  41 static void rk610_scaler_enable(struct i2c_client *client)
  42 {
  43     char c;
  44     bool den_inv = 0,hv_sync_inv = 0,clk_inv = 0;
  45     RK610_DBG(&client->dev,"%s \n",__FUNCTION__);
  46     g_lcd_inf->scl_inf.scl_pwr = ENABLE;
  47     #if defined(CONFIG_HDMI_DUAL_DISP) || defined(CONFIG_ONE_LCDC_DUAL_OUTPUT_INF)
  48     if(g_lcd_inf->screen !=NULL){
  49         den_inv = g_lcd_inf->screen->s_den_inv;
  50         hv_sync_inv = g_lcd_inf->screen->s_hv_sync_inv;
  51         clk_inv = g_lcd_inf->screen->s_clk_inv;
  52     }
  53     #endif
  54     c= SCL_BYPASS(0) |SCL_DEN_INV(den_inv) |SCL_H_V_SYNC_INV(hv_sync_inv) |SCL_OUT_CLK_INV(clk_inv) |SCL_ENABLE(ENABLE);
  55         rk610_scaler_write_p0_reg(client, SCL_CON0, &c);
  56 }
  57 static void rk610_scaler_disable(struct i2c_client *client)
  58 {
  59     char c;
  60     bool den_inv = 0,hv_sync_inv = 0,clk_inv = 0;
  61     RK610_DBG(&client->dev,"%s \n",__FUNCTION__);
  62
  63     g_lcd_inf->scl_inf.scl_pwr = DISABLE;
  64     #if defined(CONFIG_HDMI_DUAL_DISP) || defined(CONFIG_ONE_LCDC_DUAL_OUTPUT_INF)
  65     if(g_lcd_inf->screen !=NULL){
  66         den_inv = g_lcd_inf->screen->s_den_inv;
  67         hv_sync_inv = g_lcd_inf->screen->s_hv_sync_inv;
  68         clk_inv = g_lcd_inf->screen->s_clk_inv;
  69     }
  70     #endif
  71     c= SCL_BYPASS(1) |SCL_DEN_INV(den_inv) |SCL_H_V_SYNC_INV(hv_sync_inv) |SCL_OUT_CLK_INV(clk_inv) |SCL_ENABLE(DISABLE);
  72     rk610_scaler_write_p0_reg(client, SCL_CON0, &c);
  73 }
  74
  75 static int rk610_output_config(struct i2c_client *client,struct rk29fb_screen *screen,int mode)
  76 {
  77     char c=0;
  78     RK610_DBG(&client->dev,"%s \n",__FUNCTION__);
  79      if(SCREEN_LVDS == screen->type){
  80         if(mode == LCD_OUT_SCL || mode == LCD_OUT_BYPASS){
  81             c = LVDS_OUT_CLK_PIN(0) |LVDS_OUT_CLK_PWR_PIN(1) |LVDS_PLL_PWR_PIN(0) \
  82                 |LVDS_LANE_IN_FORMAT(DATA_D0_MSB) |LVDS_INPUT_SOURCE(FROM_LCD0_OR_SCL) \
  83                 |LVDS_OUTPUT_FORMAT(screen->lvds_format) | LVDS_BIASE_PWR(1);
  84                 rk610_scaler_write_p0_reg(client, LVDS_CON0, &c);
  85             c = LVDS_OUT_ENABLE(0x0) |LVDS_TX_PWR_ENABLE(0x0);
  86                 rk610_scaler_write_p0_reg(client, LVDS_CON1, &c);
  87             }
  88             else{
  89                 c = LVDS_OUT_CLK_PIN(0) |LVDS_OUT_CLK_PWR_PIN(0) |LVDS_PLL_PWR_PIN(1) \
  90                 |LVDS_LANE_IN_FORMAT(DATA_D0_MSB) |LVDS_INPUT_SOURCE(FROM_LCD0_OR_SCL) \
  91                 |LVDS_OUTPUT_FORMAT(screen->lvds_format) | LVDS_BIASE_PWR(0);
  92                 rk610_scaler_write_p0_reg(client, LVDS_CON0, &c);
  93             c = LVDS_OUT_ENABLE(0xf) |LVDS_TX_PWR_ENABLE(0xf);
  94                 rk610_scaler_write_p0_reg(client, LVDS_CON1, &c);
  95
  96             }
  97         }else if(SCREEN_RGB == screen->type){
  98             if(mode == LCD_OUT_SCL || mode == LCD_OUT_BYPASS){
  99             c = LCD1_OUT_ENABLE(LCD1_AS_OUT) | LCD1_OUT_SRC((mode == LCD_OUT_SCL)?LCD1_FROM_SCL : LCD1_FROM_LCD0);
 100                 rk610_scaler_write_p0_reg(client, LCD1_CON, &c);
 101             }
 102             else {
 103             c = LCD1_OUT_ENABLE(LCD1_AS_IN);
 104                 rk610_scaler_write_p0_reg(client, LCD1_CON, &c);
 105             }
 106         }
 107         return 0;
 108 }
 109 #if defined(CONFIG_HDMI_DUAL_DISP) || defined(CONFIG_ONE_LCDC_DUAL_OUTPUT_INF)
 110 static int rk610_scaler_pll_set(struct i2c_client *client,struct rk29fb_screen *screen,u32 clkin )
 111 {
 112     char c=0;
 113     char M=0,N=0,OD=0;
 114     RK610_DBG(&client->dev,"%s \n",__FUNCTION__);
 115         /***************SET SCALER PLL FROM CLKIN ,DIV 0*/
 116     if(screen->s_pixclock != 0){
 117         OD = (screen->s_pixclock)&0x3;
 118         N = (screen->s_pixclock >>4)&0xf;
 119         M = (screen->s_pixclock >>8)&0xff;
 120     }else {
 121         RK610_ERR(&client->dev,"RK610 Scaler pll not support rate \n");
 122     }
 123     c = S_PLL_FROM_DIV<<3 | S_PLL_DIV(0);
 124         rk610_scaler_write_p0_reg(client, CLOCK_CON0, &c);
 125
 126     c = S_DIV_N(N)| S_DIV_OD(OD);
 127         rk610_scaler_write_p0_reg(client, S_PLL_CON0, &c);
 128     c = S_DIV_M(M);
 129     rk610_scaler_write_p0_reg(client, S_PLL_CON1, &c);
 130     rk610_scaler_pll_enable(client);
 131         return 0;
 132 }
 133
 134
 135 static int  scale_hv_factor(struct i2c_client *client ,u32 Hin_act, u32 Hout_act, u32 Vin_act, u32 Vout_act)
 136    {
 137     char c;
 138         u32 hfactor_f,vfactor_f,scl_factor_f;
 139         int  hfactor;
 140         int  vfactor;
 141         struct scl_hv_info  HV2;
 142         hfactor_f = ((Hin_act-1)*4096)/(Hout_act-1);
 143     if(hfactor_f==4096)
 144             {hfactor = 0x1000;}
 145         else if(hfactor_f>(int)hfactor_f)
 146                 {hfactor = (int)hfactor_f+1;}
 147         else
 148                 {hfactor = (int)hfactor_f;}
 149
 150         scl_factor_f = Vin_act/Vout_act;
 151         if(scl_factor_f<2)
 152             {vfactor_f = ((Vin_act-1)*4096)/(Vout_act-1);}
 153         else
 154                 {vfactor_f = ((Vin_act-2)*4096)/(Vout_act-1);}
 155         if(vfactor_f==4096)
 156             {vfactor = 0x1000;}
 157         else if(vfactor_f>(int)vfactor_f)
 158                 {vfactor = (int)vfactor_f+1;}
 159         else
 160                 {vfactor = (int)vfactor_f;}
 161
 162     HV2.scl_h= hfactor;
 163     HV2.scl_v= vfactor;
 164            /*       SCL FACTOR          */
 165     c = SCL_H_FACTOR_LSB(HV2.scl_h);
 166         rk610_scaler_write_p0_reg(client, SCL_CON1, &c);
 167     c = SCL_H_FACTOR_MSB(HV2.scl_h);
 168         rk610_scaler_write_p0_reg(client, SCL_CON2, &c);
 169
 170     c = SCL_V_FACTOR_LSB(HV2.scl_v);
 171         rk610_scaler_write_p0_reg(client, SCL_CON3, &c);
 172     c = SCL_V_FACTOR_MSB(HV2.scl_v);
 173         rk610_scaler_write_p0_reg(client, SCL_CON4, &c);
 174         return 0;
 175    }
 176
 177 static int rk610_scaler_fator_config(struct i2c_client *client ,struct rk29fb_screen *screen)
 178 {
 179     switch(screen->hdmi_resolution){
 180         case HDMI_1920x1080p_60Hz:
 181         case HDMI_1920x1080p_50Hz:
 182             rk610_scaler_pll_set(client,screen,148500000);
 183             /***************set scaler factor********************/
 184             scale_hv_factor(client,1920,screen->x_res,1080,screen->y_res);
 185             break;
 186         case HDMI_1280x720p_60Hz:
 187         case HDMI_1280x720p_50Hz:
 188             rk610_scaler_pll_set(client,screen,74250000);
 189             /***************set scaler factor********************/
 190             scale_hv_factor(client,1280,screen->x_res,720,screen->y_res);
 191         break;
 192         case HDMI_720x576p_50Hz_16_9:
 193         case HDMI_720x576p_50Hz_4_3:
 194             rk610_scaler_pll_set(client,screen,27000000);
 195             /***************set scaler factor********************/
 196             scale_hv_factor(client,720,screen->x_res,576,screen->y_res);
 197             break;
 198         case HDMI_720x480p_60Hz_16_9:
 199         case HDMI_720x480p_60Hz_4_3:
 200             rk610_scaler_pll_set(client,screen,27000000);
 201             /***************set scaler factor********************/
 202             scale_hv_factor(client,720,screen->x_res,480,screen->y_res);
 203         break;
 204     default :
 205         RK610_ERR(&client->dev,"RK610 not support dual display at hdmi resolution=%d \n",screen->hdmi_resolution);
 206         return -1;
 207         break;
 208     }
 209     return 0;
 210 }
 211 static int rk610_scaler_output_timing_config(struct i2c_client *client,struct rk29fb_screen *screen)
 212 {
 213     char c;
 214     int h_st = screen->s_hsync_st;
 215     int hs_end = screen->s_hsync_len;
 216     int h_act_st = hs_end + screen->s_left_margin;
 217     int xres = screen->x_res;
 218     int h_act_end = h_act_st + xres;
 219     int h_total = h_act_end + screen->s_right_margin;
 220     int v_st = screen->s_vsync_st;
 221     int vs_end = screen->s_vsync_len;
 222     int v_act_st = vs_end + screen->s_upper_margin;
 223     int yres = screen->y_res;
 224     int v_act_end = v_act_st + yres;
 225     int v_total = v_act_end + screen->s_lower_margin;
 226
 227     /*      SCL display Frame start point   */
 228     c = SCL_DSP_HST_LSB(h_st);
 229         rk610_scaler_write_p0_reg(client, SCL_CON5, &c);
 230     c = SCL_DSP_HST_MSB(h_st);
 231         rk610_scaler_write_p0_reg(client, SCL_CON6, &c);
 232
 233     c = SCL_DSP_VST_LSB(v_st);
 234         rk610_scaler_write_p0_reg(client, SCL_CON7, &c);
 235     c = SCL_DSP_VST_MSB(v_st);
 236         rk610_scaler_write_p0_reg(client, SCL_CON8, &c);
 237     /*      SCL output timing       */
 238
 239     c = SCL_DSP_HTOTAL_LSB(h_total);
 240         rk610_scaler_write_p0_reg(client, SCL_CON9, &c);
 241     c = SCL_DSP_HTOTAL_MSB(h_total);
 242         rk610_scaler_write_p0_reg(client, SCL_CON10, &c);
 243
 244     c = SCL_DSP_HS_END(hs_end);
 245         rk610_scaler_write_p0_reg(client, SCL_CON11, &c);
 246
 247     c = SCL_DSP_HACT_ST_LSB(h_act_st);
 248         rk610_scaler_write_p0_reg(client, SCL_CON12, &c);
 249     c = SCL_DSP_HACT_ST_MSB(h_act_st);
 250         rk610_scaler_write_p0_reg(client, SCL_CON13, &c);
 251
 252     c = SCL_DSP_HACT_END_LSB(h_act_end);
 253         rk610_scaler_write_p0_reg(client, SCL_CON14, &c);
 254     c = SCL_DSP_HACT_END_MSB(h_act_end);
 255         rk610_scaler_write_p0_reg(client, SCL_CON15, &c);
 256
 257     c = SCL_DSP_VTOTAL_LSB(v_total);
 258         rk610_scaler_write_p0_reg(client, SCL_CON16, &c);
 259     c = SCL_DSP_VTOTAL_MSB(v_total);
 260         rk610_scaler_write_p0_reg(client, SCL_CON17, &c);
 261
 262     c = SCL_DSP_VS_END(vs_end);
 263         rk610_scaler_write_p0_reg(client, SCL_CON18, &c);
 264
 265     c = SCL_DSP_VACT_ST(v_act_st);
 266         rk610_scaler_write_p0_reg(client, SCL_CON19, &c);
 267
 268     c = SCL_DSP_VACT_END_LSB(v_act_end);
 269         rk610_scaler_write_p0_reg(client, SCL_CON20, &c);
 270     c = SCL_DSP_VACT_END_MSB(v_act_end);
 271         rk610_scaler_write_p0_reg(client, SCL_CON21, &c);
 272
 273     c = SCL_H_BORD_ST_LSB(h_act_st);
 274         rk610_scaler_write_p0_reg(client, SCL_CON22, &c);
 275     c = SCL_H_BORD_ST_MSB(h_act_st);
 276         rk610_scaler_write_p0_reg(client, SCL_CON23, &c);
 277
 278     c = SCL_H_BORD_END_LSB(h_act_end);
 279         rk610_scaler_write_p0_reg(client, SCL_CON24, &c);
 280     c = SCL_H_BORD_END_MSB(h_act_end);
 281         rk610_scaler_write_p0_reg(client, SCL_CON25, &c);
 282
 283     c = SCL_V_BORD_ST(v_act_st);
 284         rk610_scaler_write_p0_reg(client, SCL_CON26, &c);
 285
 286     c = SCL_V_BORD_END_LSB(v_act_end);
 287         rk610_scaler_write_p0_reg(client, SCL_CON27, &c);
 288     c = SCL_V_BORD_END_MSB(v_act_end);
 289         rk610_scaler_write_p0_reg(client, SCL_CON28, &c);
 290
 291         return 0;
 292 }
 293 static int rk610_scaler_chg(struct i2c_client *client ,struct rk29fb_screen *screen)
 294 {
 295
 296     RK610_DBG(&client->dev,"%s screen->hdmi_resolution=%d\n",__FUNCTION__,screen->hdmi_resolution);
 297     rk610_scaler_fator_config(client,screen);
 298     rk610_scaler_enable(client);
 299     rk610_scaler_output_timing_config(client,screen);
 300
 301     return 0;
 302
 303 }
 304 #endif
 305 static int rk610_lcd_scaler_bypass(struct i2c_client *client,bool enable)//enable:0 bypass 1: scale
 306 {
 307     RK610_DBG(&client->dev,"%s \n",__FUNCTION__);
 308
 309     rk610_scaler_disable(client);
 310     rk610_scaler_pll_disable(client);
 311
 312     return 0;
 313 }
 314
 315 #ifdef CONFIG_HAS_EARLYSUSPEND
 316 static void rk610_lcd_early_suspend(struct early_suspend *h)
 317 {
 318     struct i2c_client *client = g_lcd_inf->client;
 319     char c;
 320     RK610_DBG(&client->dev,"%s \n",__FUNCTION__);
 321     if(g_lcd_inf->screen != NULL){
 322         rk610_output_config(client,g_lcd_inf->screen,LCD_OUT_DISABLE);
 323     }
 324
 325     if(ENABLE == g_lcd_inf->scl_inf.scl_pwr){
 326         c= SCL_BYPASS(1) |SCL_DEN_INV(0) |SCL_H_V_SYNC_INV(0) |SCL_OUT_CLK_INV(0) |SCL_ENABLE(DISABLE);
 327         rk610_scaler_write_p0_reg(client, SCL_CON0, &c);
 328     }
 329     if(ENABLE == g_lcd_inf->scl_inf.pll_pwr ){
 330         c = S_PLL_PWR(1) |S_PLL_RESET(0) |S_PLL_BYPASS(1);
 331             rk610_scaler_write_p0_reg(client, S_PLL_CON2, &c);
 332     }
 333 }
 334
 335 static void rk610_lcd_early_resume(struct early_suspend *h)
 336 {
 337     struct i2c_client *client = g_lcd_inf->client;
 338     char c;
 339     RK610_DBG(&client->dev,"%s \n",__FUNCTION__);
 340
 341     if(g_lcd_inf->screen != NULL){
 342         rk610_output_config(client,g_lcd_inf->screen,g_lcd_inf->disp_mode);
 343     }
 344     if(ENABLE == g_lcd_inf->scl_inf.scl_pwr){
 345         c= SCL_BYPASS(0) |SCL_DEN_INV(0) |SCL_H_V_SYNC_INV(0) |SCL_OUT_CLK_INV(0) |SCL_ENABLE(ENABLE);
 346             rk610_scaler_write_p0_reg(client, SCL_CON0, &c);
 347     }
 348     if(ENABLE == g_lcd_inf->scl_inf.pll_pwr ){
 349         c = S_PLL_PWR(1) |S_PLL_RESET(0) |S_PLL_BYPASS(1);
 350             rk610_scaler_write_p0_reg(client, S_PLL_CON2, &c);
 351     }
 352 }
 353 #endif
 354 int rk610_lcd_scaler_set_param(struct rk29fb_screen *screen,bool enable )//enable:0 bypass 1: scale
 355 {
 356     int ret=0;
 357     struct i2c_client *client = g_lcd_inf->client;
 358     if(client == NULL){
 359         printk("%s client == NULL FAIL\n",__FUNCTION__);
 360         return -1;
 361     }
 362     if(screen == NULL){
 363         printk("%s screen == NULL FAIL\n",__FUNCTION__);
 364         return -1;
 365     }
 366     RK610_DBG(&client->dev,"%s \n",__FUNCTION__);
 367
 368     g_lcd_inf->screen = screen;
 369
 370 #if defined(CONFIG_HDMI_DUAL_DISP) || defined(CONFIG_ONE_LCDC_DUAL_OUTPUT_INF)
 371     if(enable == 1){
 372         g_lcd_inf->disp_mode = LCD_OUT_SCL;
 373         rk610_output_config(client,screen,LCD_OUT_SCL);
 374         ret = rk610_scaler_chg(client,screen);
 375         }
 376         else
 377 #endif
 378         {
 379             g_lcd_inf->disp_mode = LCD_OUT_BYPASS;
 380             rk610_output_config(client,screen,LCD_OUT_BYPASS);
 381             ret = rk610_lcd_scaler_bypass(client,enable);
 382         }
 383         return ret;
 384 }
 385 int rk610_lcd_init(struct rk610_core_info *rk610_core_info)
 386 {
 387     if(rk610_core_info->client == NULL){
 388         printk("%s client == NULL FAIL\n",__FUNCTION__);
 389         return -1;
 390     }
 391     RK610_DBG(&rk610_core_info->client->dev,"%s \n",__FUNCTION__);
 392
 393     g_lcd_inf = kmalloc(sizeof(struct rk610_lcd_info), GFP_KERNEL);
 394     if(!g_lcd_inf)
 395     {
 396         dev_err(&rk610_core_info->client->dev, ">> rk610 inf kmalloc fail!");
 397         return -ENOMEM;
 398     }
 399     memset(g_lcd_inf, 0, sizeof(struct rk610_lcd_info));
 400
 401     g_lcd_inf->client= rk610_core_info->client;
 402
 403     rk610_core_info->lcd_pdata = (void *)g_lcd_inf;
 404 #ifdef CONFIG_HAS_EARLYSUSPEND
 405         g_lcd_inf->early_suspend.suspend = rk610_lcd_early_suspend;
 406         g_lcd_inf->early_suspend.resume = rk610_lcd_early_resume;
 407         g_lcd_inf->early_suspend.level = EARLY_SUSPEND_LEVEL_DISABLE_FB- 1;
 408         register_early_suspend(&g_lcd_inf->early_suspend);
 409 #endif
 410     g_lcd_inf->scl_inf.pll_pwr = DISABLE;
 411     g_lcd_inf->scl_inf.scl_pwr = DISABLE;
 412     g_lcd_inf->disp_mode = LCD_OUT_BYPASS;
 413     return 0;
 414 }
 415
 416 static int rk610_lcd_probe(struct platform_device *pdev)
 417 {
 418         struct rk610_core_info *core_info = NULL;
 419         rk_screen *screen = NULL;
 420
 421         core_info = dev_get_drvdata(pdev->dev.parent);
 422         if(!core_info)
 423         {
 424                 dev_err(&pdev->dev,"rk610 core info is null\n");
 425                 return -ENODEV;
 426         }
 427         screen = rk_fb_get_prmry_screen();
 428         if(!screen)
 429         {
 430                 dev_err(&pdev->dev,"the fb prmry screen is null!\n");
 431                 return -ENODEV;
 432         }
 433
 434 #if defined(CONFIG_ONE_LCDC_DUAL_OUTPUT_INF)
 435         screen->sscreen_set = rk610_lcd_scaler_set_param;
 436 #endif
 437         rk610_lcd_init(core_info);
 438         rk610_lcd_scaler_set_param(screen,0);
 439
 440         return 0;
 441
 442 }
 443 static int rk610_lcd_remove(struct platform_device *pdev)
 444 {
 445
 446         return 0;
 447 }
 448
 449 static void rk610_lcd_shutdown(struct platform_device *pdev)
 450 {
 451
 452         return;
 453 }
 454
 455 static struct platform_driver rk610_lcd_driver = {
 456         .driver         = {
 457                 .name   = "rk610-lcd",
 458                 .owner  = THIS_MODULE,
 459         },
 460         .probe          = rk610_lcd_probe,
 461         .remove         = rk610_lcd_remove,
 462         .shutdown       = rk610_lcd_shutdown,
 463 };
 464
 465 static int __init rk610_lcd_module_init(void)
 466 {
 467         return platform_driver_register(&rk610_lcd_driver);
 468 }
 469 fs_initcall(rk610_lcd_module_init);
 470 static void __exit rk610_lcd_exit(void)
 471 {
 472         platform_driver_unregister(&rk610_lcd_driver);
 473 }
 474 module_exit(rk610_lcd_exit);
 475