drivers/media/video/rk_camsys/camsys_marvin.c

   1 #include "camsys_marvin.h"
   2 #include "camsys_soc_priv.h"
   3 #include "camsys_gpio.h"
   4
   5 #include <linux/rockchip/common.h>
   6 #include <dt-bindings/clock/rk_system_status.h>
   7
   8 extern int rockchip_set_system_status(unsigned long status);
   9 extern int rockchip_clear_system_status(unsigned long status);
  10
  11 static const char miscdev_name[] = CAMSYS_MARVIN_DEVNAME;
  12
  13
  14 static int camsys_mrv_iomux_cb(camsys_extdev_t *extdev,void *ptr)
  15 {
  16     struct pinctrl      *pinctrl;
  17     struct pinctrl_state    *state;
  18     int retval = 0;
  19     char state_str[20] = {0};
  20     camsys_dev_t *camsys_dev = (camsys_dev_t*)ptr;
  21     struct device *dev = &(extdev->pdev->dev);
  22     camsys_soc_priv_t *soc;
  23
  24     // DVP IO Config
  25
  26     if (extdev->phy.type == CamSys_Phy_Cif) {
  27
  28         switch (extdev->phy.info.cif.fmt)
  29         {
  30             case CamSys_Fmt_Raw_8b:
  31             case CamSys_Fmt_Yuv420_8b:
  32             case CamSys_Fmt_Yuv422_8b:
  33             {
  34                 if (extdev->phy.info.cif.cifio == CamSys_SensorBit0_CifBit0) {
  35                     strcpy(state_str,"isp_dvp8bit0");
  36                 } else if (extdev->phy.info.cif.cifio == CamSys_SensorBit0_CifBit2) {
  37                     strcpy(state_str,"isp_dvp8bit2");
  38                 } else {
  39                     camsys_err("extdev->phy.info.cif.cifio: 0x%x is invalidate!", extdev->phy.info.cif.cifio);
  40                     goto fail;
  41                 }
  42
  43                 break;
  44             }
  45
  46             case CamSys_Fmt_Raw_10b:
  47             {
  48                 strcpy(state_str,"isp_dvp10bit");
  49                 break;
  50             }
  51
  52             case CamSys_Fmt_Raw_12b:
  53             {
  54                 strcpy(state_str,"isp_dvp12bit");
  55                 break;
  56             }
  57
  58             default:
  59             {
  60                 camsys_err("extdev->phy.info.cif.fmt: 0x%x is invalidate!",extdev->phy.info.cif.fmt);
  61                 goto fail;
  62             }
  63         }
  64     } else {
  65         if (extdev->dev_cfg & CAMSYS_DEVCFG_FLASHLIGHT) {
  66             if (extdev->dev_cfg & CAMSYS_DEVCFG_PREFLASHLIGHT) {
  67                 strcpy(state_str,"isp_mipi_fl_prefl");
  68             } else {
  69                 strcpy(state_str,"isp_mipi_fl");
  70             }
  71         } else {
  72             strcpy(state_str,"default");
  73         }
  74     }
  75
  76     camsys_trace(1,"marvin pinctrl select: %s", state_str);
  77
  78     pinctrl = devm_pinctrl_get(dev);
  79     if (IS_ERR(pinctrl)) {
  80         camsys_err("devm_pinctrl_get failed!");
  81         goto fail;
  82     }
  83     state = pinctrl_lookup_state(pinctrl,
  84                          state_str);
  85     if (IS_ERR(state)){
  86         camsys_err("pinctrl_lookup_state failed!");
  87         goto fail;
  88     }
  89
  90     if (!IS_ERR(state)) {
  91         retval = pinctrl_select_state(pinctrl, state);
  92         if (retval){
  93             camsys_err("pinctrl_select_state failed!");
  94             goto fail;
  95         }
  96     }
  97
  98     if (camsys_dev->soc) {
  99         soc = (camsys_soc_priv_t*)camsys_dev->soc;
 100         if (soc->soc_cfg) {
 101             (soc->soc_cfg)(Cif_IoDomain_Cfg,(void*)&extdev->dovdd.min_uv);
 102             (soc->soc_cfg)(Clk_DriverStrength_Cfg,(void*)&extdev->clk.driver_strength);
 103         } else {
 104             camsys_err("camsys_dev->soc->soc_cfg is NULL!");
 105         }
 106     } else {
 107         camsys_err("camsys_dev->soc is NULL!");
 108     }
 109
 110     return 0;
 111 fail:
 112     return -1;
 113 }
 114
 115 static int camsys_mrv_flash_trigger_cb(void *ptr,unsigned int on)
 116 {
 117     camsys_dev_t *camsys_dev = (camsys_dev_t*)ptr;
 118     struct device *dev = &(camsys_dev->pdev->dev);
 119     int flash_trigger_io ;
 120     struct pinctrl      *pinctrl;
 121     struct pinctrl_state    *state;
 122     char state_str[20] = {0};
 123     int retval = 0;
 124     enum of_gpio_flags flags;
 125
 126     if(!on){
 127         strcpy(state_str,"isp_flash_as_gpio");
 128         pinctrl = devm_pinctrl_get(dev);
 129         if (IS_ERR(pinctrl)) {
 130             camsys_err("devm_pinctrl_get failed!");
 131         }
 132         state = pinctrl_lookup_state(pinctrl,
 133                              state_str);
 134         if (IS_ERR(state)){
 135             camsys_err("pinctrl_lookup_state failed!");
 136         }
 137
 138         if (!IS_ERR(state)) {
 139             retval = pinctrl_select_state(pinctrl, state);
 140             if (retval){
 141                 camsys_err("pinctrl_select_state failed!");
 142             }
 143
 144         }
 145
 146         //get gpio index
 147         flash_trigger_io = of_get_named_gpio_flags(camsys_dev->pdev->dev.of_node, "rockchip,gpios", 0, &flags);
 148         if(gpio_is_valid(flash_trigger_io)){
 149             flash_trigger_io = of_get_named_gpio_flags(camsys_dev->pdev->dev.of_node, "rockchip,gpios", 0, &flags);
 150             gpio_request(flash_trigger_io,"camsys_gpio");
 151             gpio_direction_output(flash_trigger_io, 1);
 152             }
 153
 154     }else{
 155         strcpy(state_str,"isp_flash_as_trigger_out");
 156         pinctrl = devm_pinctrl_get(dev);
 157         if (IS_ERR(pinctrl)) {
 158             camsys_err("devm_pinctrl_get failed!");
 159         }
 160         state = pinctrl_lookup_state(pinctrl,
 161                              state_str);
 162         if (IS_ERR(state)){
 163             camsys_err("pinctrl_lookup_state failed!");
 164         }
 165
 166         if (!IS_ERR(state)) {
 167             retval = pinctrl_select_state(pinctrl, state);
 168             if (retval){
 169                 camsys_err("pinctrl_select_state failed!");
 170             }
 171
 172         }
 173     }
 174     return retval;
 175 }
 176
 177
 178 static int camsys_mrv_reset_cb(void *ptr,unsigned int on)
 179 {
 180     camsys_dev_t *camsys_dev = (camsys_dev_t*)ptr;
 181     camsys_soc_priv_t *soc;
 182
 183
 184     if (camsys_dev->soc) {
 185         soc = (camsys_soc_priv_t*)camsys_dev->soc;
 186         if (soc->soc_cfg) {
 187             (soc->soc_cfg)(Isp_SoftRst,(void*)on);
 188         } else {
 189             camsys_err("camsys_dev->soc->soc_cfg is NULL!");
 190         }
 191     } else {
 192         camsys_err("camsys_dev->soc is NULL!");
 193     }
 194
 195     return 0;
 196 }
 197
 198 static int camsys_mrv_clkin_cb(void *ptr, unsigned int on)
 199 {
 200     camsys_dev_t *camsys_dev = (camsys_dev_t*)ptr;
 201     camsys_mrv_clk_t *clk = (camsys_mrv_clk_t*)camsys_dev->clk;
 202     unsigned long isp_clk;
 203
 204     if (on && !clk->in_on) {
 205                 rockchip_set_system_status(SYS_STATUS_ISP);
 206
 207                 if (on == 1) {
 208                     isp_clk = 210000000;
 209                 } else {
 210                     isp_clk = 420000000;
 211                 }
 212
 213                 clk_set_rate(clk->isp,isp_clk);
 214         clk_set_rate(clk->isp_jpe, isp_clk);
 215
 216         clk_prepare_enable(clk->aclk_isp);
 217         clk_prepare_enable(clk->hclk_isp);
 218         clk_prepare_enable(clk->isp);
 219         clk_prepare_enable(clk->isp_jpe);
 220         clk_prepare_enable(clk->clk_mipi_24m);
 221         clk_prepare_enable(clk->pclkin_isp);
 222                 clk_prepare_enable(clk->pd_isp);
 223
 224         clk->in_on = true;
 225
 226         camsys_trace(1, "%s clock(f: %ld Hz) in turn on",dev_name(camsys_dev->miscdev.this_device),isp_clk);
 227         camsys_mrv_reset_cb(ptr,1);
 228         udelay(100);
 229         camsys_mrv_reset_cb(ptr,0);
 230
 231     } else if (!on && clk->in_on) {
 232
 233         clk_disable_unprepare(clk->aclk_isp);
 234         clk_disable_unprepare(clk->hclk_isp);
 235         clk_disable_unprepare(clk->isp);
 236         clk_disable_unprepare(clk->isp_jpe);
 237         clk_disable_unprepare(clk->clk_mipi_24m);
 238         clk_disable_unprepare(clk->pclkin_isp);
 239                 clk_disable_unprepare(clk->pd_isp);
 240
 241                 rockchip_clear_system_status(SYS_STATUS_ISP);
 242         clk->in_on = false;
 243         camsys_trace(1, "%s clock in turn off",dev_name(camsys_dev->miscdev.this_device));
 244     }
 245
 246     return 0;
 247 }
 248
 249 static int camsys_mrv_clkout_cb(void *ptr, unsigned int on,unsigned int inclk)
 250 {
 251     camsys_dev_t *camsys_dev = (camsys_dev_t*)ptr;
 252     camsys_mrv_clk_t *clk = (camsys_mrv_clk_t*)camsys_dev->clk;
 253
 254     mutex_lock(&clk->lock);
 255     if (on && (clk->out_on != on)) {
 256
 257         clk_set_rate(clk->cif_clk_out,inclk);
 258         clk_prepare_enable(clk->cif_clk_out);
 259
 260                 clk->out_on = on;
 261         camsys_trace(1, "%s clock out(rate: %dHz) turn on",dev_name(camsys_dev->miscdev.this_device),
 262                     inclk);
 263     } else if (!on && clk->out_on) {
 264         if(!IS_ERR_OR_NULL(clk->cif_clk_pll)) {
 265             clk_set_parent(clk->cif_clk_out, clk->cif_clk_pll);
 266         } else {
 267             camsys_warn("%s clock out may be not off!", dev_name(camsys_dev->miscdev.this_device));
 268         }
 269
 270         clk_disable_unprepare( clk->cif_clk_out);
 271
 272         clk->out_on = 0;
 273
 274         camsys_trace(1, "%s clock out turn off",dev_name(camsys_dev->miscdev.this_device));
 275     }
 276     mutex_unlock(&clk->lock);
 277
 278     return 0;
 279 }
 280 static irqreturn_t camsys_mrv_irq(int irq, void *data)
 281 {
 282     camsys_dev_t *camsys_dev = (camsys_dev_t*)data;
 283     camsys_irqstas_t *irqsta;
 284     camsys_irqpool_t *irqpool;
 285     unsigned int isp_mis,mipi_mis,mi_mis,*mis;
 286
 287     isp_mis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_ISP_MIS));
 288     mipi_mis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MIPI_MIS));
 289     mi_mis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MI_MIS));
 290
 291     __raw_writel(isp_mis, (void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_ISP_ICR));
 292     __raw_writel(mipi_mis, (void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MIPI_ICR));
 293     __raw_writel(mi_mis, (void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MI_ICR));
 294
 295     spin_lock(&camsys_dev->irq.lock);
 296     if (!list_empty(&camsys_dev->irq.irq_pool)) {
 297         list_for_each_entry(irqpool, &camsys_dev->irq.irq_pool, list) {
 298             if (irqpool->pid != 0) {
 299                 switch(irqpool->mis)
 300                 {
 301                     case MRV_ISP_MIS:
 302                     {
 303                         mis = &isp_mis;
 304                         break;
 305                     }
 306
 307                     case MRV_MIPI_MIS:
 308                     {
 309                         mis = &mipi_mis;
 310                         break;
 311                     }
 312                     case MRV_MI_MIS:
 313                     {
 314                         mis = &mi_mis;
 315                         break;
 316                     }
 317
 318                     default:
 319                     {
 320                         camsys_trace(2,"Thread(pid:%d) irqpool mis(%d) is invalidate",irqpool->pid,irqpool->mis);
 321                         goto end;
 322                     }
 323                 }
 324
 325                 if (*mis != 0) {
 326                     spin_lock(&irqpool->lock);
 327                     if (!list_empty(&irqpool->deactive)) {
 328                         irqsta = list_first_entry(&irqpool->deactive, camsys_irqstas_t, list);
 329                         irqsta->sta.mis = *mis;
 330                         list_del_init(&irqsta->list);
 331                         list_add_tail(&irqsta->list,&irqpool->active);
 332                         wake_up(&irqpool->done);
 333                     }
 334                     spin_unlock(&irqpool->lock);
 335                 }
 336             }
 337         }
 338     }
 339 end:
 340     spin_unlock(&camsys_dev->irq.lock);
 341
 342     return IRQ_HANDLED;
 343 }
 344 static int camsys_mrv_remove_cb(struct platform_device *pdev)
 345 {
 346     camsys_dev_t *camsys_dev = platform_get_drvdata(pdev);
 347     camsys_mrv_clk_t *mrv_clk=NULL;
 348
 349     if (camsys_dev->clk != NULL) {
 350
 351         mrv_clk = (camsys_mrv_clk_t*)camsys_dev->clk;
 352         if (mrv_clk->out_on)
 353             camsys_mrv_clkout_cb(mrv_clk,0,0);
 354         if (mrv_clk->in_on)
 355             camsys_mrv_clkin_cb(mrv_clk,0);
 356
 357         if (!IS_ERR_OR_NULL(mrv_clk->pd_isp)) {
 358                         devm_clk_put(&pdev->dev,mrv_clk->pd_isp);
 359         }
 360         if (!IS_ERR_OR_NULL(mrv_clk->aclk_isp)) {
 361             devm_clk_put(&pdev->dev,mrv_clk->aclk_isp);
 362         }
 363         if (!IS_ERR_OR_NULL(mrv_clk->hclk_isp)) {
 364             devm_clk_put(&pdev->dev,mrv_clk->hclk_isp);
 365         }
 366         if (!IS_ERR_OR_NULL(mrv_clk->isp)) {
 367             devm_clk_put(&pdev->dev,mrv_clk->isp);
 368         }
 369         if (!IS_ERR_OR_NULL(mrv_clk->isp_jpe)) {
 370             devm_clk_put(&pdev->dev,mrv_clk->isp_jpe);
 371         }
 372         if (!IS_ERR_OR_NULL(mrv_clk->pclkin_isp)) {
 373             devm_clk_put(&pdev->dev,mrv_clk->pclkin_isp);
 374         }
 375         if (!IS_ERR_OR_NULL(mrv_clk->cif_clk_out)) {
 376             devm_clk_put(&pdev->dev,mrv_clk->cif_clk_out);
 377         }
 378
 379         kfree(mrv_clk);
 380         mrv_clk = NULL;
 381     }
 382
 383     return 0;
 384 }
 385 int camsys_mrv_probe_cb(struct platform_device *pdev, camsys_dev_t *camsys_dev)
 386 {
 387     int err = 0;
 388     camsys_mrv_clk_t *mrv_clk=NULL;
 389
 390         err = request_irq(camsys_dev->irq.irq_id, camsys_mrv_irq, 0, CAMSYS_MARVIN_IRQNAME,camsys_dev);
 391     if (err) {
 392         camsys_err("request irq for %s failed",CAMSYS_MARVIN_IRQNAME);
 393         goto end;
 394     }
 395
 396     //Clk and Iomux init
 397     mrv_clk = kzalloc(sizeof(camsys_mrv_clk_t),GFP_KERNEL);
 398     if (mrv_clk == NULL) {
 399         camsys_err("Allocate camsys_mrv_clk_t failed!");
 400         err = -EINVAL;
 401         goto clk_failed;
 402     }
 403
 404     mrv_clk->pd_isp = devm_clk_get(&pdev->dev, "pd_isp");
 405     mrv_clk->aclk_isp = devm_clk_get(&pdev->dev, "aclk_isp");
 406     mrv_clk->hclk_isp = devm_clk_get(&pdev->dev, "hclk_isp");
 407     mrv_clk->isp = devm_clk_get(&pdev->dev, "clk_isp");
 408     mrv_clk->isp_jpe = devm_clk_get(&pdev->dev, "clk_isp_jpe");
 409     mrv_clk->pclkin_isp = devm_clk_get(&pdev->dev, "pclkin_isp");
 410     mrv_clk->cif_clk_out = devm_clk_get(&pdev->dev, "clk_cif_out");
 411     mrv_clk->cif_clk_pll = devm_clk_get(&pdev->dev, "clk_cif_pll");
 412     mrv_clk->clk_mipi_24m = devm_clk_get(&pdev->dev,"clk_mipi_24m");
 413
 414         if (IS_ERR_OR_NULL(mrv_clk->pd_isp) || IS_ERR_OR_NULL(mrv_clk->aclk_isp) || IS_ERR_OR_NULL(mrv_clk->hclk_isp) ||
 415         IS_ERR_OR_NULL(mrv_clk->isp) || IS_ERR_OR_NULL(mrv_clk->isp_jpe) || IS_ERR_OR_NULL(mrv_clk->pclkin_isp) ||
 416         IS_ERR_OR_NULL(mrv_clk->cif_clk_out) || IS_ERR_OR_NULL(mrv_clk->clk_mipi_24m)) {
 417         camsys_err("Get %s clock resouce failed!\n",miscdev_name);
 418         err = -EINVAL;
 419         goto clk_failed;
 420     }
 421
 422     clk_set_rate(mrv_clk->isp,210000000);
 423     clk_set_rate(mrv_clk->isp_jpe, 210000000);
 424
 425     mutex_init(&mrv_clk->lock);
 426
 427     mrv_clk->in_on = false;
 428     mrv_clk->out_on = 0;
 429
 430     camsys_dev->clk = (void*)mrv_clk;
 431     camsys_dev->clkin_cb = camsys_mrv_clkin_cb;
 432     camsys_dev->clkout_cb = camsys_mrv_clkout_cb;
 433     camsys_dev->reset_cb = camsys_mrv_reset_cb;
 434     camsys_dev->iomux = camsys_mrv_iomux_cb;
 435     camsys_dev->flash_trigger_cb = camsys_mrv_flash_trigger_cb;
 436
 437     camsys_dev->miscdev.minor = MISC_DYNAMIC_MINOR;
 438     camsys_dev->miscdev.name = miscdev_name;
 439     camsys_dev->miscdev.nodename = miscdev_name;
 440     camsys_dev->miscdev.fops = &camsys_fops;
 441
 442     err = misc_register(&camsys_dev->miscdev);
 443     if (err < 0) {
 444         camsys_err("misc register %s failed!",miscdev_name);
 445         goto misc_register_failed;
 446     }
 447
 448     //Variable init
 449     camsys_dev->dev_id = CAMSYS_DEVID_MARVIN;
 450     camsys_dev->platform_remove = camsys_mrv_remove_cb;
 451
 452
 453     return 0;
 454 misc_register_failed:
 455     if (!IS_ERR_OR_NULL(camsys_dev->miscdev.this_device)) {
 456         misc_deregister(&camsys_dev->miscdev);
 457     }
 458
 459 clk_failed:
 460     if (mrv_clk != NULL) {
 461         if (!IS_ERR_OR_NULL(mrv_clk->pd_isp)) {
 462             clk_put(mrv_clk->pd_isp);
 463         }
 464         if (!IS_ERR_OR_NULL(mrv_clk->aclk_isp)) {
 465             clk_put(mrv_clk->aclk_isp);
 466         }
 467         if (!IS_ERR_OR_NULL(mrv_clk->hclk_isp)) {
 468             clk_put(mrv_clk->hclk_isp);
 469         }
 470         if (!IS_ERR_OR_NULL(mrv_clk->isp)) {
 471             clk_put(mrv_clk->isp);
 472         }
 473         if (!IS_ERR_OR_NULL(mrv_clk->isp_jpe)) {
 474             clk_put(mrv_clk->isp_jpe);
 475         }
 476         if (!IS_ERR_OR_NULL(mrv_clk->pclkin_isp)) {
 477             clk_put(mrv_clk->pclkin_isp);
 478         }
 479         if (!IS_ERR_OR_NULL(mrv_clk->cif_clk_out)) {
 480             clk_put(mrv_clk->cif_clk_out);
 481         }
 482
 483         kfree(mrv_clk);
 484         mrv_clk = NULL;
 485     }
 486
 487 end:
 488     return err;
 489 }
 490 EXPORT_SYMBOL_GPL(camsys_mrv_probe_cb);
 491