drivers/media/video/rk_camsys/camsys_marvin.c

   1 #include "camsys_marvin.h"
   2
   3 static const char miscdev_name[] = CAMSYS_MARVIN_DEVNAME;
   4
   5 static int camsys_mrv_iomux_cb(camsys_extdev_t *extdev,void *ptr)
   6 {
   7     unsigned int cif_vol_sel;
   8 #if 0
   9     if (extdev->dev_cfg & CAMSYS_DEVCFG_FLASHLIGHT) {
  10         iomux_set(ISP_FLASH_TRIG);
  11         if (extdev->fl.fl.io != 0xffffffff) {
  12             iomux_set(ISP_FL_TRIG);
  13         }
  14     }
  15
  16     if (extdev->dev_cfg & CAMSYS_DEVCFG_PREFLASHLIGHT) {
  17         iomux_set(ISP_PRELIGHT_TRIG);
  18     }
  19
  20     if (extdev->dev_cfg & CAMSYS_DEVCFG_SHUTTER) {
  21         iomux_set(ISP_SHUTTER_OPEN);
  22         iomux_set(ISP_SHUTTER_TRIG);
  23     }
  24
  25     iomux_set(CIF0_CLKOUT);
  26 #endif
  27
  28     struct pinctrl      *pinctrl;
  29     struct pinctrl_state    *state;
  30     int retval = 0;
  31     char state_str[20] = {0};
  32
  33     struct device *dev = &(extdev->pdev->dev);
  34
  35     if (extdev->phy.type == CamSys_Phy_Cif) {
  36         if ((extdev->phy.info.cif.fmt >= CamSys_Fmt_Raw_8b)&& (extdev->phy.info.cif.fmt <= CamSys_Fmt_Raw_12b)) {
  37
  38            strcpy(state_str,"isp_dvp8bit");
  39
  40         }
  41
  42         if ((extdev->phy.info.cif.fmt >= CamSys_Fmt_Raw_10b)&& (extdev->phy.info.cif.fmt <= CamSys_Fmt_Raw_12b)) {
  43            strcpy(state_str,"isp_dvp10bit");
  44         }
  45
  46         if (extdev->phy.info.cif.fmt == CamSys_Fmt_Raw_12b) {
  47            strcpy(state_str,"isp_dvp12bit");
  48
  49         }
  50     }else{
  51            strcpy(state_str,"default");
  52     }
  53
  54     //mux CIF0_CLKOUT
  55
  56     pinctrl = devm_pinctrl_get(dev);
  57     if (IS_ERR(pinctrl)) {
  58         camsys_err("%s:Get pinctrl failed!\n",__func__);
  59         return -1;
  60     }
  61     state = pinctrl_lookup_state(pinctrl,
  62                          state_str);
  63     if (IS_ERR(state)){
  64         dev_err(dev, "%s:could not get %s pinstate\n",__func__,state_str);
  65         return -1;
  66         }
  67
  68     if (!IS_ERR(state)) {
  69         retval = pinctrl_select_state(pinctrl, state);
  70         if (retval){
  71             dev_err(dev,
  72                 "%s:could not set %s pins\n",__func__,state_str);
  73                 return -1;
  74
  75                 }
  76     }
  77
  78     //set 1.8v vol domain for rk32
  79     __raw_writel(((1<<1)|(1<<(1+16))),RK_GRF_VIRT+0x0380);
  80    __raw_writel(0xffffffff, RK_GRF_VIRT+0x01d4);
  81
  82     //set cif vol domain
  83     if (extdev->phy.type == CamSys_Phy_Cif) {
  84
  85         #if 0
  86         if (!IS_ERR_OR_NULL(extdev->dovdd.ldo)) {
  87             if (extdev->dovdd.max_uv >= 25000000) {
  88                 __raw_writel(((1<<1)|(1<<(1+16))),RK30_GRF_BASE+0x018c);
  89             } else {
  90                 __raw_writel((1<<(1+16)),RK30_GRF_BASE+0x018c);
  91             }
  92         } else {
  93             __raw_writel(((1<<1)|(1<<(1+16))),RK30_GRF_BASE+0x018c);
  94         }
  95         #else
  96
  97         //set 1.8v vol domain
  98         __raw_writel(((1<<1)|(1<<(1+16))),RK_GRF_VIRT+0x0380);
  99         #endif
 100
 101         //set driver strength
 102       //  __raw_writel(0xffffffff, RK_GRF_VIRT+0x01dc);
 103     }
 104
 105     return 0;
 106 }
 107
 108 static int camsys_mrv_reset_cb(void *ptr)
 109 {
 110     camsys_dev_t *camsys_dev = (camsys_dev_t*)ptr;
 111     #if 0 //do nothing ,zyc
 112     cru_set_soft_reset(SOFT_RST_ISP,true);
 113     udelay(100);
 114     cru_set_soft_reset(SOFT_RST_ISP,false);
 115     #endif
 116     camsys_trace(1, "%s soft reset\n",dev_name(camsys_dev->miscdev.this_device));
 117     return 0;
 118 }
 119
 120 static int camsys_mrv_clkin_cb(void *ptr, unsigned int on)
 121 {
 122     camsys_dev_t *camsys_dev = (camsys_dev_t*)ptr;
 123     camsys_mrv_clk_t *clk = (camsys_mrv_clk_t*)camsys_dev->clk;
 124
 125   //  spin_lock(&clk->lock);
 126     if (on && !clk->in_on) {
 127         clk_set_rate(clk->isp,180000000);
 128         clk_set_rate(clk->isp_jpe, 180000000);
 129    //     clk_set_rate(clk->aclk_isp,24000000);
 130    //     clk_set_rate(clk->hclk_isp,24000000);
 131
 132
 133         clk_prepare_enable(clk->aclk_isp);
 134         clk_prepare_enable(clk->hclk_isp);
 135         clk_prepare_enable(clk->isp);
 136         clk_prepare_enable( clk->isp_jpe);
 137
 138
 139  //       clk_enable(clk->pd_isp);
 140   //      clk_enable(clk->aclk_isp);
 141   //    clk_enable(clk->hclk_isp);
 142   //    clk_enable(clk->isp);
 143  //     clk_enable(clk->isp_jpe);
 144  //     clk_enable(clk->pclkin_isp);
 145
 146         clk->in_on = true;
 147
 148         camsys_trace(1, "%s clock in turn on",dev_name(camsys_dev->miscdev.this_device));
 149         camsys_mrv_reset_cb(ptr);
 150
 151     } else if (!on && clk->in_on) {
 152
 153
 154          clk_disable_unprepare(clk->aclk_isp);
 155         clk_disable_unprepare(clk->hclk_isp);
 156         clk_disable_unprepare(clk->isp);
 157         clk_disable_unprepare( clk->isp_jpe);
 158
 159   //      clk_disable(clk->pd_isp);
 160   //      clk_disable(clk->aclk_isp);
 161    //   clk_disable(clk->hclk_isp);
 162   //    clk_disable(clk->isp);
 163   //    clk_disable(clk->isp_jpe);
 164  //     clk_disable(clk->pclkin_isp);
 165
 166         clk->in_on = false;
 167         camsys_trace(1, "%s clock in turn off",dev_name(camsys_dev->miscdev.this_device));
 168     }
 169   //  spin_unlock(&clk->lock);
 170     return 0;
 171 }
 172
 173 static int camsys_mrv_clkout_cb(void *ptr, unsigned int on)
 174 {
 175     camsys_dev_t *camsys_dev = (camsys_dev_t*)ptr;
 176     camsys_mrv_clk_t *clk = (camsys_mrv_clk_t*)camsys_dev->clk;
 177     struct clk *cif_clk_out_div;
 178
 179     spin_lock(&clk->lock);
 180     if (on && (clk->out_on != on)) {
 181         clk_prepare_enable(clk->cif_clk_out);
 182
 183 //        clk_enable(clk->cif_clk_out);
 184         clk_set_rate(clk->cif_clk_out,on);
 185
 186         clk->out_on = on;
 187         camsys_trace(1, "%s clock out(rate: %dHz) turn on",dev_name(camsys_dev->miscdev.this_device),
 188                     clk->out_on);
 189     } else if (!on && clk->out_on) {
 190         cif_clk_out_div =  clk_get(NULL, "cif0_out_div");
 191         if(IS_ERR_OR_NULL(cif_clk_out_div)) {
 192             cif_clk_out_div =  clk_get(NULL, "cif_out_div");
 193         }
 194
 195         if(!IS_ERR_OR_NULL(cif_clk_out_div)) {
 196             clk_set_parent(clk->cif_clk_out, cif_clk_out_div);
 197             clk_put(cif_clk_out_div);
 198         } else {
 199             camsys_warn("%s clock out may be not off!", dev_name(camsys_dev->miscdev.this_device));
 200         }
 201
 202         clk_disable_unprepare( clk->cif_clk_out);
 203 //        clk_disable(clk->cif_clk_out);
 204
 205         clk->out_on = 0;
 206
 207         camsys_trace(1, "%s clock out turn off",dev_name(camsys_dev->miscdev.this_device));
 208     }
 209     spin_unlock(&clk->lock);
 210
 211     return 0;
 212 }
 213 static irqreturn_t camsys_mrv_irq(int irq, void *data)
 214 {
 215     camsys_dev_t *camsys_dev = (camsys_dev_t*)data;
 216     camsys_irqstas_t *irqsta;
 217     camsys_irqpool_t *irqpool;
 218     unsigned int isp_mis,mipi_mis,mi_mis,*mis;
 219
 220     isp_mis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_ISP_MIS));
 221     mipi_mis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MIPI_MIS));
 222     mi_mis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MI_MIS));
 223
 224     __raw_writel(isp_mis, (void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_ISP_ICR));
 225     __raw_writel(mipi_mis, (void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MIPI_ICR));
 226     __raw_writel(mi_mis, (void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MI_ICR));
 227
 228     spin_lock(&camsys_dev->irq.lock);
 229     if (!list_empty(&camsys_dev->irq.irq_pool)) {
 230         list_for_each_entry(irqpool, &camsys_dev->irq.irq_pool, list) {
 231             if (irqpool->pid != 0) {
 232                 switch(irqpool->mis)
 233                 {
 234                     case MRV_ISP_MIS:
 235                     {
 236                         mis = &isp_mis;
 237                         break;
 238                     }
 239
 240                     case MRV_MIPI_MIS:
 241                     {
 242                         mis = &mipi_mis;
 243                         break;
 244                     }
 245                     case MRV_MI_MIS:
 246                     {
 247                         mis = &mi_mis;
 248                         break;
 249                     }
 250
 251                     default:
 252                     {
 253                         camsys_trace(2,"Thread(pid:%d) irqpool mis(%d) is invalidate",irqpool->pid,irqpool->mis);
 254                         goto end;
 255                     }
 256                 }
 257
 258                 if (*mis != 0) {
 259                     spin_lock(&irqpool->lock);
 260                     if (!list_empty(&irqpool->deactive)) {
 261                         irqsta = list_first_entry(&irqpool->deactive, camsys_irqstas_t, list);
 262                         irqsta->sta.mis = *mis;
 263                         list_del_init(&irqsta->list);
 264                         list_add_tail(&irqsta->list,&irqpool->active);
 265                         wake_up(&irqpool->done);
 266                     }
 267                     spin_unlock(&irqpool->lock);
 268                 }
 269             }
 270         }
 271     }
 272 end:
 273     spin_unlock(&camsys_dev->irq.lock);
 274
 275     return IRQ_HANDLED;
 276 }
 277 static int camsys_mrv_remove_cb(struct platform_device *pdev)
 278 {
 279     camsys_dev_t *camsys_dev = platform_get_drvdata(pdev);
 280     camsys_mrv_clk_t *mrv_clk=NULL;
 281
 282     if (camsys_dev->clk != NULL) {
 283
 284         mrv_clk = (camsys_mrv_clk_t*)camsys_dev->clk;
 285         if (mrv_clk->out_on)
 286             camsys_mrv_clkout_cb(mrv_clk,0);
 287         if (mrv_clk->in_on)
 288             camsys_mrv_clkin_cb(mrv_clk,0);
 289
 290         if (!IS_ERR_OR_NULL(mrv_clk->pd_isp)) {
 291             clk_put(mrv_clk->pd_isp);
 292         }
 293         if (!IS_ERR_OR_NULL(mrv_clk->aclk_isp)) {
 294             clk_put(mrv_clk->aclk_isp);
 295         }
 296         if (!IS_ERR_OR_NULL(mrv_clk->hclk_isp)) {
 297             clk_put(mrv_clk->hclk_isp);
 298         }
 299         if (!IS_ERR_OR_NULL(mrv_clk->isp)) {
 300             clk_put(mrv_clk->isp);
 301         }
 302         if (!IS_ERR_OR_NULL(mrv_clk->isp_jpe)) {
 303             clk_put(mrv_clk->isp_jpe);
 304         }
 305         if (!IS_ERR_OR_NULL(mrv_clk->pclkin_isp)) {
 306             clk_put(mrv_clk->pclkin_isp);
 307         }
 308         if (!IS_ERR_OR_NULL(mrv_clk->cif_clk_out)) {
 309             clk_put(mrv_clk->cif_clk_out);
 310         }
 311
 312         kfree(mrv_clk);
 313         mrv_clk = NULL;
 314     }
 315
 316     return 0;
 317 }
 318 int camsys_mrv_probe_cb(struct platform_device *pdev, camsys_dev_t *camsys_dev)
 319 {
 320     int err = 0;
 321     camsys_mrv_clk_t *mrv_clk=NULL;
 322     //struct clk *clk_parent;
 323
 324     err = request_irq(camsys_dev->irq.irq_id, camsys_mrv_irq, 0, CAMSYS_MARVIN_IRQNAME,camsys_dev);
 325     if (err) {
 326         camsys_err("request irq for %s failed",CAMSYS_MARVIN_IRQNAME);
 327         goto end;
 328     }
 329
 330     //Clk and Iomux init
 331     mrv_clk = kzalloc(sizeof(camsys_mrv_clk_t),GFP_KERNEL);
 332     if (mrv_clk == NULL) {
 333         camsys_err("Allocate camsys_mrv_clk_t failed!");
 334         err = -EINVAL;
 335         goto clk_failed;
 336     }
 337
 338    // mrv_clk->pd_isp = devm_clk_get(&pdev->dev, "pd_isp");
 339     mrv_clk->pd_isp = NULL;
 340     mrv_clk->aclk_isp = devm_clk_get(&pdev->dev, "g_aclk_isp");
 341     mrv_clk->hclk_isp = devm_clk_get(&pdev->dev, "g_hclk_isp");
 342     mrv_clk->isp = devm_clk_get(&pdev->dev, "clk_isp");
 343     mrv_clk->isp_jpe = devm_clk_get(&pdev->dev, "clk_isp_jpe");
 344     mrv_clk->pclkin_isp = devm_clk_get(&pdev->dev, "pclkin_isp");
 345     mrv_clk->cif_clk_out = devm_clk_get(&pdev->dev, "clk_cif_out");
 346
 347     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) ||
 348         IS_ERR_OR_NULL(mrv_clk->isp) || IS_ERR_OR_NULL(mrv_clk->isp_jpe) /*|| IS_ERR_OR_NULL(mrv_clk->pclkin_isp)*/ ||
 349         IS_ERR_OR_NULL(mrv_clk->cif_clk_out)) {
 350         camsys_err("Get %s clock resouce failed!\n",miscdev_name);
 351         err = -EINVAL;
 352         goto clk_failed;
 353     }
 354
 355
 356 //    clk_set_rate(mrv_clk->isp,1800000000);
 357 //    clk_set_rate(mrv_clk->isp_jpe,180000000);
 358
 359     spin_lock_init(&mrv_clk->lock);
 360
 361     mrv_clk->in_on = false;
 362     mrv_clk->out_on = 0;
 363
 364     camsys_dev->clk = (void*)mrv_clk;
 365     camsys_dev->clkin_cb = camsys_mrv_clkin_cb;
 366     camsys_dev->clkout_cb = camsys_mrv_clkout_cb;
 367     camsys_dev->reset_cb = camsys_mrv_reset_cb;
 368     camsys_dev->iomux = camsys_mrv_iomux_cb;
 369
 370     camsys_dev->miscdev.minor = MISC_DYNAMIC_MINOR;
 371     camsys_dev->miscdev.name = miscdev_name;
 372     camsys_dev->miscdev.nodename = miscdev_name;
 373     camsys_dev->miscdev.fops = &camsys_fops;
 374
 375     err = misc_register(&camsys_dev->miscdev);
 376     if (err < 0) {
 377         camsys_err("misc register %s failed!",miscdev_name);
 378         goto misc_register_failed;
 379     }
 380
 381     //Variable init
 382     camsys_dev->dev_id = CAMSYS_DEVID_MARVIN;
 383     camsys_dev->platform_remove = camsys_mrv_remove_cb;
 384
 385     return 0;
 386 misc_register_failed:
 387     if (!IS_ERR_OR_NULL(camsys_dev->miscdev.this_device)) {
 388         misc_deregister(&camsys_dev->miscdev);
 389     }
 390
 391 clk_failed:
 392     if (mrv_clk != NULL) {
 393         if (!IS_ERR_OR_NULL(mrv_clk->pd_isp)) {
 394             clk_put(mrv_clk->pd_isp);
 395         }
 396         if (!IS_ERR_OR_NULL(mrv_clk->aclk_isp)) {
 397             clk_put(mrv_clk->aclk_isp);
 398         }
 399         if (!IS_ERR_OR_NULL(mrv_clk->hclk_isp)) {
 400             clk_put(mrv_clk->hclk_isp);
 401         }
 402         if (!IS_ERR_OR_NULL(mrv_clk->isp)) {
 403             clk_put(mrv_clk->isp);
 404         }
 405         if (!IS_ERR_OR_NULL(mrv_clk->isp_jpe)) {
 406             clk_put(mrv_clk->isp_jpe);
 407         }
 408         if (!IS_ERR_OR_NULL(mrv_clk->pclkin_isp)) {
 409             clk_put(mrv_clk->pclkin_isp);
 410         }
 411         if (!IS_ERR_OR_NULL(mrv_clk->cif_clk_out)) {
 412             clk_put(mrv_clk->cif_clk_out);
 413         }
 414
 415         kfree(mrv_clk);
 416         mrv_clk = NULL;
 417     }
 418
 419 end:
 420     return err;
 421 }
 422 EXPORT_SYMBOL_GPL(camsys_mrv_probe_cb);
 423