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
 203     if (on && !clk->in_on) {
 204                 rockchip_set_system_status(SYS_STATUS_ISP);
 205
 206         clk_prepare_enable(clk->aclk_isp);
 207         clk_prepare_enable(clk->hclk_isp);
 208         clk_prepare_enable(clk->isp);
 209         clk_prepare_enable(clk->isp_jpe);
 210         clk_prepare_enable(clk->clk_mipi_24m);
 211         clk_prepare_enable(clk->pclkin_isp);
 212                 clk_prepare_enable(clk->pd_isp);
 213
 214         clk->in_on = true;
 215
 216         camsys_trace(1, "%s clock in turn on",dev_name(camsys_dev->miscdev.this_device));
 217         camsys_mrv_reset_cb(ptr,1);
 218         udelay(100);
 219         camsys_mrv_reset_cb(ptr,0);
 220
 221     } else if (!on && clk->in_on) {
 222
 223         clk_disable_unprepare(clk->aclk_isp);
 224         clk_disable_unprepare(clk->hclk_isp);
 225         clk_disable_unprepare(clk->isp);
 226         clk_disable_unprepare(clk->isp_jpe);
 227         clk_disable_unprepare(clk->clk_mipi_24m);
 228         clk_disable_unprepare(clk->pclkin_isp);
 229                 clk_disable_unprepare(clk->pd_isp);
 230
 231                 rockchip_clear_system_status(SYS_STATUS_ISP);
 232         clk->in_on = false;
 233         camsys_trace(1, "%s clock in turn off",dev_name(camsys_dev->miscdev.this_device));
 234     }
 235
 236     return 0;
 237 }
 238
 239 static int camsys_mrv_clkout_cb(void *ptr, unsigned int on,unsigned int inclk)
 240 {
 241     camsys_dev_t *camsys_dev = (camsys_dev_t*)ptr;
 242     camsys_mrv_clk_t *clk = (camsys_mrv_clk_t*)camsys_dev->clk;
 243
 244     mutex_lock(&clk->lock);
 245     if (on && (clk->out_on != on)) {
 246
 247         clk_set_rate(clk->cif_clk_out,inclk);
 248         clk_prepare_enable(clk->cif_clk_out);
 249
 250                 clk->out_on = on;
 251         camsys_trace(1, "%s clock out(rate: %dHz) turn on",dev_name(camsys_dev->miscdev.this_device),
 252                     inclk);
 253     } else if (!on && clk->out_on) {
 254         if(!IS_ERR_OR_NULL(clk->cif_clk_pll)) {
 255             clk_set_parent(clk->cif_clk_out, clk->cif_clk_pll);
 256         } else {
 257             camsys_warn("%s clock out may be not off!", dev_name(camsys_dev->miscdev.this_device));
 258         }
 259
 260         clk_disable_unprepare( clk->cif_clk_out);
 261
 262         clk->out_on = 0;
 263
 264         camsys_trace(1, "%s clock out turn off",dev_name(camsys_dev->miscdev.this_device));
 265     }
 266     mutex_unlock(&clk->lock);
 267
 268     return 0;
 269 }
 270 static irqreturn_t camsys_mrv_irq(int irq, void *data)
 271 {
 272     camsys_dev_t *camsys_dev = (camsys_dev_t*)data;
 273     camsys_irqstas_t *irqsta;
 274     camsys_irqpool_t *irqpool;
 275     unsigned int isp_mis,mipi_mis,mi_mis,*mis;
 276
 277     isp_mis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_ISP_MIS));
 278     mipi_mis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MIPI_MIS));
 279     mi_mis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MI_MIS));
 280
 281     __raw_writel(isp_mis, (void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_ISP_ICR));
 282     __raw_writel(mipi_mis, (void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MIPI_ICR));
 283     __raw_writel(mi_mis, (void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MI_ICR));
 284
 285     spin_lock(&camsys_dev->irq.lock);
 286     if (!list_empty(&camsys_dev->irq.irq_pool)) {
 287         list_for_each_entry(irqpool, &camsys_dev->irq.irq_pool, list) {
 288             if (irqpool->pid != 0) {
 289                 switch(irqpool->mis)
 290                 {
 291                     case MRV_ISP_MIS:
 292                     {
 293                         mis = &isp_mis;
 294                         break;
 295                     }
 296
 297                     case MRV_MIPI_MIS:
 298                     {
 299                         mis = &mipi_mis;
 300                         break;
 301                     }
 302                     case MRV_MI_MIS:
 303                     {
 304                         mis = &mi_mis;
 305                         break;
 306                     }
 307
 308                     default:
 309                     {
 310                         camsys_trace(2,"Thread(pid:%d) irqpool mis(%d) is invalidate",irqpool->pid,irqpool->mis);
 311                         goto end;
 312                     }
 313                 }
 314
 315                 if (*mis != 0) {
 316                     spin_lock(&irqpool->lock);
 317                     if (!list_empty(&irqpool->deactive)) {
 318                         irqsta = list_first_entry(&irqpool->deactive, camsys_irqstas_t, list);
 319                         irqsta->sta.mis = *mis;
 320                         list_del_init(&irqsta->list);
 321                         list_add_tail(&irqsta->list,&irqpool->active);
 322                         wake_up(&irqpool->done);
 323                     }
 324                     spin_unlock(&irqpool->lock);
 325                 }
 326             }
 327         }
 328     }
 329 end:
 330     spin_unlock(&camsys_dev->irq.lock);
 331
 332     return IRQ_HANDLED;
 333 }
 334 static int camsys_mrv_remove_cb(struct platform_device *pdev)
 335 {
 336     camsys_dev_t *camsys_dev = platform_get_drvdata(pdev);
 337     camsys_mrv_clk_t *mrv_clk=NULL;
 338
 339     if (camsys_dev->clk != NULL) {
 340
 341         mrv_clk = (camsys_mrv_clk_t*)camsys_dev->clk;
 342         if (mrv_clk->out_on)
 343             camsys_mrv_clkout_cb(mrv_clk,0,0);
 344         if (mrv_clk->in_on)
 345             camsys_mrv_clkin_cb(mrv_clk,0);
 346
 347         if (!IS_ERR_OR_NULL(mrv_clk->pd_isp)) {
 348                         devm_clk_put(&pdev->dev,mrv_clk->pd_isp);
 349         }
 350         if (!IS_ERR_OR_NULL(mrv_clk->aclk_isp)) {
 351             devm_clk_put(&pdev->dev,mrv_clk->aclk_isp);
 352         }
 353         if (!IS_ERR_OR_NULL(mrv_clk->hclk_isp)) {
 354             devm_clk_put(&pdev->dev,mrv_clk->hclk_isp);
 355         }
 356         if (!IS_ERR_OR_NULL(mrv_clk->isp)) {
 357             devm_clk_put(&pdev->dev,mrv_clk->isp);
 358         }
 359         if (!IS_ERR_OR_NULL(mrv_clk->isp_jpe)) {
 360             devm_clk_put(&pdev->dev,mrv_clk->isp_jpe);
 361         }
 362         if (!IS_ERR_OR_NULL(mrv_clk->pclkin_isp)) {
 363             devm_clk_put(&pdev->dev,mrv_clk->pclkin_isp);
 364         }
 365         if (!IS_ERR_OR_NULL(mrv_clk->cif_clk_out)) {
 366             devm_clk_put(&pdev->dev,mrv_clk->cif_clk_out);
 367         }
 368
 369         kfree(mrv_clk);
 370         mrv_clk = NULL;
 371     }
 372
 373     return 0;
 374 }
 375 int camsys_mrv_probe_cb(struct platform_device *pdev, camsys_dev_t *camsys_dev)
 376 {
 377     int err = 0;
 378     camsys_mrv_clk_t *mrv_clk=NULL;
 379
 380         err = request_irq(camsys_dev->irq.irq_id, camsys_mrv_irq, 0, CAMSYS_MARVIN_IRQNAME,camsys_dev);
 381     if (err) {
 382         camsys_err("request irq for %s failed",CAMSYS_MARVIN_IRQNAME);
 383         goto end;
 384     }
 385
 386     //Clk and Iomux init
 387     mrv_clk = kzalloc(sizeof(camsys_mrv_clk_t),GFP_KERNEL);
 388     if (mrv_clk == NULL) {
 389         camsys_err("Allocate camsys_mrv_clk_t failed!");
 390         err = -EINVAL;
 391         goto clk_failed;
 392     }
 393
 394     mrv_clk->pd_isp = devm_clk_get(&pdev->dev, "pd_isp");
 395     mrv_clk->aclk_isp = devm_clk_get(&pdev->dev, "aclk_isp");
 396     mrv_clk->hclk_isp = devm_clk_get(&pdev->dev, "hclk_isp");
 397     mrv_clk->isp = devm_clk_get(&pdev->dev, "clk_isp");
 398     mrv_clk->isp_jpe = devm_clk_get(&pdev->dev, "clk_isp_jpe");
 399     mrv_clk->pclkin_isp = devm_clk_get(&pdev->dev, "pclkin_isp");
 400     mrv_clk->cif_clk_out = devm_clk_get(&pdev->dev, "clk_cif_out");
 401     mrv_clk->cif_clk_pll = devm_clk_get(&pdev->dev, "clk_cif_pll");
 402     mrv_clk->clk_mipi_24m = devm_clk_get(&pdev->dev,"clk_mipi_24m");
 403
 404         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) ||
 405         IS_ERR_OR_NULL(mrv_clk->isp) || IS_ERR_OR_NULL(mrv_clk->isp_jpe) || IS_ERR_OR_NULL(mrv_clk->pclkin_isp) ||
 406         IS_ERR_OR_NULL(mrv_clk->cif_clk_out) || IS_ERR_OR_NULL(mrv_clk->clk_mipi_24m)) {
 407         camsys_err("Get %s clock resouce failed!\n",miscdev_name);
 408         err = -EINVAL;
 409         goto clk_failed;
 410     }
 411
 412     clk_set_rate(mrv_clk->isp,210000000);
 413     clk_set_rate(mrv_clk->isp_jpe, 210000000);
 414
 415     mutex_init(&mrv_clk->lock);
 416
 417     mrv_clk->in_on = false;
 418     mrv_clk->out_on = 0;
 419
 420     camsys_dev->clk = (void*)mrv_clk;
 421     camsys_dev->clkin_cb = camsys_mrv_clkin_cb;
 422     camsys_dev->clkout_cb = camsys_mrv_clkout_cb;
 423     camsys_dev->reset_cb = camsys_mrv_reset_cb;
 424     camsys_dev->iomux = camsys_mrv_iomux_cb;
 425     camsys_dev->flash_trigger_cb = camsys_mrv_flash_trigger_cb;
 426
 427     camsys_dev->miscdev.minor = MISC_DYNAMIC_MINOR;
 428     camsys_dev->miscdev.name = miscdev_name;
 429     camsys_dev->miscdev.nodename = miscdev_name;
 430     camsys_dev->miscdev.fops = &camsys_fops;
 431
 432     err = misc_register(&camsys_dev->miscdev);
 433     if (err < 0) {
 434         camsys_err("misc register %s failed!",miscdev_name);
 435         goto misc_register_failed;
 436     }
 437
 438     //Variable init
 439     camsys_dev->dev_id = CAMSYS_DEVID_MARVIN;
 440     camsys_dev->platform_remove = camsys_mrv_remove_cb;
 441
 442
 443     return 0;
 444 misc_register_failed:
 445     if (!IS_ERR_OR_NULL(camsys_dev->miscdev.this_device)) {
 446         misc_deregister(&camsys_dev->miscdev);
 447     }
 448
 449 clk_failed:
 450     if (mrv_clk != NULL) {
 451         if (!IS_ERR_OR_NULL(mrv_clk->pd_isp)) {
 452             clk_put(mrv_clk->pd_isp);
 453         }
 454         if (!IS_ERR_OR_NULL(mrv_clk->aclk_isp)) {
 455             clk_put(mrv_clk->aclk_isp);
 456         }
 457         if (!IS_ERR_OR_NULL(mrv_clk->hclk_isp)) {
 458             clk_put(mrv_clk->hclk_isp);
 459         }
 460         if (!IS_ERR_OR_NULL(mrv_clk->isp)) {
 461             clk_put(mrv_clk->isp);
 462         }
 463         if (!IS_ERR_OR_NULL(mrv_clk->isp_jpe)) {
 464             clk_put(mrv_clk->isp_jpe);
 465         }
 466         if (!IS_ERR_OR_NULL(mrv_clk->pclkin_isp)) {
 467             clk_put(mrv_clk->pclkin_isp);
 468         }
 469         if (!IS_ERR_OR_NULL(mrv_clk->cif_clk_out)) {
 470             clk_put(mrv_clk->cif_clk_out);
 471         }
 472
 473         kfree(mrv_clk);
 474         mrv_clk = NULL;
 475     }
 476
 477 end:
 478     return err;
 479 }
 480 EXPORT_SYMBOL_GPL(camsys_mrv_probe_cb);
 481