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0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003  *
0004  * device driver for philips saa7134 based TV cards
0005  * driver core
0006  *
0007  * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
0008  */
0009 
0010 #include "saa7134.h"
0011 #include "saa7134-reg.h"
0012 
0013 #include <linux/init.h>
0014 #include <linux/list.h>
0015 #include <linux/module.h>
0016 #include <linux/kernel.h>
0017 #include <linux/slab.h>
0018 #include <linux/kmod.h>
0019 #include <linux/sound.h>
0020 #include <linux/interrupt.h>
0021 #include <linux/delay.h>
0022 #include <linux/mutex.h>
0023 #include <linux/dma-mapping.h>
0024 #include <linux/pm.h>
0025 
0026 MODULE_DESCRIPTION("v4l2 driver module for saa7130/34 based TV cards");
0027 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
0028 MODULE_LICENSE("GPL");
0029 MODULE_VERSION(SAA7134_VERSION);
0030 
0031 
0032 /* ------------------------------------------------------------------ */
0033 
0034 static unsigned int irq_debug;
0035 module_param(irq_debug, int, 0644);
0036 MODULE_PARM_DESC(irq_debug,"enable debug messages [IRQ handler]");
0037 
0038 static unsigned int core_debug;
0039 module_param(core_debug, int, 0644);
0040 MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
0041 
0042 static unsigned int gpio_tracking;
0043 module_param(gpio_tracking, int, 0644);
0044 MODULE_PARM_DESC(gpio_tracking,"enable debug messages [gpio]");
0045 
0046 static unsigned int alsa = 1;
0047 module_param(alsa, int, 0644);
0048 MODULE_PARM_DESC(alsa,"enable/disable ALSA DMA sound [dmasound]");
0049 
0050 static unsigned int latency = UNSET;
0051 module_param(latency, int, 0444);
0052 MODULE_PARM_DESC(latency,"pci latency timer");
0053 
0054 int saa7134_no_overlay=-1;
0055 module_param_named(no_overlay, saa7134_no_overlay, int, 0444);
0056 MODULE_PARM_DESC(no_overlay, "allow override overlay default (0 disables, 1 enables) [some VIA/SIS chipsets are known to have problem with overlay]");
0057 
0058 bool saa7134_userptr;
0059 module_param(saa7134_userptr, bool, 0644);
0060 MODULE_PARM_DESC(saa7134_userptr, "enable page-aligned userptr support");
0061 
0062 static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
0063 static unsigned int vbi_nr[]   = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
0064 static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
0065 static unsigned int tuner[]    = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
0066 static unsigned int card[]     = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
0067 
0068 
0069 module_param_array(video_nr, int, NULL, 0444);
0070 module_param_array(vbi_nr,   int, NULL, 0444);
0071 module_param_array(radio_nr, int, NULL, 0444);
0072 module_param_array(tuner,    int, NULL, 0444);
0073 module_param_array(card,     int, NULL, 0444);
0074 
0075 MODULE_PARM_DESC(video_nr, "video device number");
0076 MODULE_PARM_DESC(vbi_nr,   "vbi device number");
0077 MODULE_PARM_DESC(radio_nr, "radio device number");
0078 MODULE_PARM_DESC(tuner,    "tuner type");
0079 MODULE_PARM_DESC(card,     "card type");
0080 
0081 DEFINE_MUTEX(saa7134_devlist_lock);
0082 EXPORT_SYMBOL(saa7134_devlist_lock);
0083 LIST_HEAD(saa7134_devlist);
0084 EXPORT_SYMBOL(saa7134_devlist);
0085 static LIST_HEAD(mops_list);
0086 static unsigned int saa7134_devcount;
0087 
0088 int (*saa7134_dmasound_init)(struct saa7134_dev *dev);
0089 int (*saa7134_dmasound_exit)(struct saa7134_dev *dev);
0090 
0091 #define core_dbg(fmt, arg...) do { \
0092     if (core_debug) \
0093         printk(KERN_DEBUG pr_fmt("core: " fmt), ## arg); \
0094     } while (0)
0095 
0096 #define irq_dbg(level, fmt, arg...)  do {\
0097     if (irq_debug > level) \
0098         printk(KERN_DEBUG pr_fmt("irq: " fmt), ## arg); \
0099     } while (0)
0100 
0101 void saa7134_track_gpio(struct saa7134_dev *dev, const char *msg)
0102 {
0103     unsigned long mode,status;
0104 
0105     if (!gpio_tracking)
0106         return;
0107     /* rising SAA7134_GPIO_GPRESCAN reads the status */
0108     saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,0);
0109     saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,SAA7134_GPIO_GPRESCAN);
0110     mode   = saa_readl(SAA7134_GPIO_GPMODE0   >> 2) & 0xfffffff;
0111     status = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & 0xfffffff;
0112     core_dbg("%s: gpio: mode=0x%07lx in=0x%07lx out=0x%07lx [%s]\n",
0113            dev->name, mode, (~mode) & status, mode & status, msg);
0114 }
0115 
0116 void saa7134_set_gpio(struct saa7134_dev *dev, int bit_no, int value)
0117 {
0118     u32 index, bitval;
0119 
0120     index = 1 << bit_no;
0121     switch (value) {
0122     case 0: /* static value */
0123     case 1:
0124         core_dbg("setting GPIO%d to static %d\n", bit_no, value);
0125         /* turn sync mode off if necessary */
0126         if (index & 0x00c00000)
0127             saa_andorb(SAA7134_VIDEO_PORT_CTRL6, 0x0f, 0x00);
0128         if (value)
0129             bitval = index;
0130         else
0131             bitval = 0;
0132         saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, index);
0133         saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, index, bitval);
0134         break;
0135     case 3: /* tristate */
0136         core_dbg("setting GPIO%d to tristate\n", bit_no);
0137         saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, 0);
0138         break;
0139     }
0140 }
0141 
0142 /* ------------------------------------------------------------------ */
0143 
0144 
0145 /* ----------------------------------------------------------- */
0146 /* delayed request_module                                      */
0147 
0148 #if defined(CONFIG_MODULES) && defined(MODULE)
0149 
0150 static void request_module_async(struct work_struct *work){
0151     struct saa7134_dev* dev = container_of(work, struct saa7134_dev, request_module_wk);
0152     if (card_is_empress(dev))
0153         request_module("saa7134-empress");
0154     if (card_is_dvb(dev))
0155         request_module("saa7134-dvb");
0156     if (card_is_go7007(dev))
0157         request_module("saa7134-go7007");
0158     if (alsa) {
0159         if (dev->pci->device != PCI_DEVICE_ID_PHILIPS_SAA7130)
0160             request_module("saa7134-alsa");
0161     }
0162 }
0163 
0164 static void request_submodules(struct saa7134_dev *dev)
0165 {
0166     INIT_WORK(&dev->request_module_wk, request_module_async);
0167     schedule_work(&dev->request_module_wk);
0168 }
0169 
0170 static void flush_request_submodules(struct saa7134_dev *dev)
0171 {
0172     flush_work(&dev->request_module_wk);
0173 }
0174 
0175 #else
0176 #define request_submodules(dev)
0177 #define flush_request_submodules(dev)
0178 #endif /* CONFIG_MODULES */
0179 
0180 /* ------------------------------------------------------------------ */
0181 
0182 /* nr of (saa7134-)pages for the given buffer size */
0183 static int saa7134_buffer_pages(int size)
0184 {
0185     size  = PAGE_ALIGN(size);
0186     size += PAGE_SIZE; /* for non-page-aligned buffers */
0187     size /= 4096;
0188     return size;
0189 }
0190 
0191 /* calc max # of buffers from size (must not exceed the 4MB virtual
0192  * address space per DMA channel) */
0193 int saa7134_buffer_count(unsigned int size, unsigned int count)
0194 {
0195     unsigned int maxcount;
0196 
0197     maxcount = 1024 / saa7134_buffer_pages(size);
0198     if (count > maxcount)
0199         count = maxcount;
0200     return count;
0201 }
0202 
0203 int saa7134_buffer_startpage(struct saa7134_buf *buf)
0204 {
0205     return saa7134_buffer_pages(vb2_plane_size(&buf->vb2.vb2_buf, 0))
0206             * buf->vb2.vb2_buf.index;
0207 }
0208 
0209 unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
0210 {
0211     unsigned long base;
0212     struct sg_table *dma = vb2_dma_sg_plane_desc(&buf->vb2.vb2_buf, 0);
0213 
0214     base  = saa7134_buffer_startpage(buf) * 4096;
0215     base += dma->sgl[0].offset;
0216     return base;
0217 }
0218 
0219 /* ------------------------------------------------------------------ */
0220 
0221 int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
0222 {
0223     __le32       *cpu;
0224     dma_addr_t   dma_addr = 0;
0225 
0226     cpu = dma_alloc_coherent(&pci->dev, SAA7134_PGTABLE_SIZE, &dma_addr,
0227                  GFP_KERNEL);
0228     if (NULL == cpu)
0229         return -ENOMEM;
0230     pt->size = SAA7134_PGTABLE_SIZE;
0231     pt->cpu  = cpu;
0232     pt->dma  = dma_addr;
0233     return 0;
0234 }
0235 
0236 int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
0237               struct scatterlist *list, unsigned int length,
0238               unsigned int startpage)
0239 {
0240     __le32        *ptr;
0241     unsigned int  i, p;
0242 
0243     BUG_ON(NULL == pt || NULL == pt->cpu);
0244 
0245     ptr = pt->cpu + startpage;
0246     for (i = 0; i < length; i++, list = sg_next(list)) {
0247         for (p = 0; p * 4096 < sg_dma_len(list); p++, ptr++)
0248             *ptr = cpu_to_le32(sg_dma_address(list) +
0249                         list->offset + p * 4096);
0250     }
0251     return 0;
0252 }
0253 
0254 void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
0255 {
0256     if (NULL == pt->cpu)
0257         return;
0258     dma_free_coherent(&pci->dev, pt->size, pt->cpu, pt->dma);
0259     pt->cpu = NULL;
0260 }
0261 
0262 /* ------------------------------------------------------------------ */
0263 
0264 int saa7134_buffer_queue(struct saa7134_dev *dev,
0265              struct saa7134_dmaqueue *q,
0266              struct saa7134_buf *buf)
0267 {
0268     struct saa7134_buf *next = NULL;
0269     unsigned long flags;
0270 
0271     spin_lock_irqsave(&dev->slock, flags);
0272     core_dbg("buffer_queue %p\n", buf);
0273     if (NULL == q->curr) {
0274         if (!q->need_two) {
0275             q->curr = buf;
0276             buf->activate(dev, buf, NULL);
0277         } else if (list_empty(&q->queue)) {
0278             list_add_tail(&buf->entry, &q->queue);
0279         } else {
0280             next = list_entry(q->queue.next, struct saa7134_buf,
0281                       entry);
0282             q->curr = buf;
0283             buf->activate(dev, buf, next);
0284         }
0285     } else {
0286         list_add_tail(&buf->entry, &q->queue);
0287     }
0288     spin_unlock_irqrestore(&dev->slock, flags);
0289     return 0;
0290 }
0291 
0292 void saa7134_buffer_finish(struct saa7134_dev *dev,
0293                struct saa7134_dmaqueue *q,
0294                unsigned int state)
0295 {
0296     core_dbg("buffer_finish %p\n", q->curr);
0297 
0298     /* finish current buffer */
0299     q->curr->vb2.vb2_buf.timestamp = ktime_get_ns();
0300     q->curr->vb2.sequence = q->seq_nr++;
0301     vb2_buffer_done(&q->curr->vb2.vb2_buf, state);
0302     q->curr = NULL;
0303 }
0304 
0305 void saa7134_buffer_next(struct saa7134_dev *dev,
0306              struct saa7134_dmaqueue *q)
0307 {
0308     struct saa7134_buf *buf,*next = NULL;
0309 
0310     assert_spin_locked(&dev->slock);
0311     BUG_ON(NULL != q->curr);
0312 
0313     if (!list_empty(&q->queue)) {
0314         /* activate next one from queue */
0315         buf = list_entry(q->queue.next, struct saa7134_buf, entry);
0316         core_dbg("buffer_next %p [prev=%p/next=%p]\n",
0317             buf, q->queue.prev, q->queue.next);
0318         list_del(&buf->entry);
0319         if (!list_empty(&q->queue))
0320             next = list_entry(q->queue.next, struct saa7134_buf, entry);
0321         q->curr = buf;
0322         buf->activate(dev, buf, next);
0323         core_dbg("buffer_next #2 prev=%p/next=%p\n",
0324             q->queue.prev, q->queue.next);
0325     } else {
0326         /* nothing to do -- just stop DMA */
0327         core_dbg("buffer_next %p\n", NULL);
0328         saa7134_set_dmabits(dev);
0329         del_timer(&q->timeout);
0330     }
0331 }
0332 
0333 void saa7134_buffer_timeout(struct timer_list *t)
0334 {
0335     struct saa7134_dmaqueue *q = from_timer(q, t, timeout);
0336     struct saa7134_dev *dev = q->dev;
0337     unsigned long flags;
0338 
0339     spin_lock_irqsave(&dev->slock, flags);
0340 
0341     /* try to reset the hardware (SWRST) */
0342     saa_writeb(SAA7134_REGION_ENABLE, 0x00);
0343     saa_writeb(SAA7134_REGION_ENABLE, 0x80);
0344     saa_writeb(SAA7134_REGION_ENABLE, 0x00);
0345 
0346     /* flag current buffer as failed,
0347        try to start over with the next one. */
0348     if (q->curr) {
0349         core_dbg("timeout on %p\n", q->curr);
0350         saa7134_buffer_finish(dev, q, VB2_BUF_STATE_ERROR);
0351     }
0352     saa7134_buffer_next(dev, q);
0353     spin_unlock_irqrestore(&dev->slock, flags);
0354 }
0355 
0356 void saa7134_stop_streaming(struct saa7134_dev *dev, struct saa7134_dmaqueue *q)
0357 {
0358     unsigned long flags;
0359     struct list_head *pos, *n;
0360     struct saa7134_buf *tmp;
0361 
0362     spin_lock_irqsave(&dev->slock, flags);
0363     list_for_each_safe(pos, n, &q->queue) {
0364         tmp = list_entry(pos, struct saa7134_buf, entry);
0365         vb2_buffer_done(&tmp->vb2.vb2_buf,
0366                 VB2_BUF_STATE_ERROR);
0367         list_del(pos);
0368         tmp = NULL;
0369     }
0370     spin_unlock_irqrestore(&dev->slock, flags);
0371     saa7134_buffer_timeout(&q->timeout); /* also calls del_timer(&q->timeout) */
0372 }
0373 EXPORT_SYMBOL_GPL(saa7134_stop_streaming);
0374 
0375 /* ------------------------------------------------------------------ */
0376 
0377 int saa7134_set_dmabits(struct saa7134_dev *dev)
0378 {
0379     u32 split, task=0, ctrl=0, irq=0;
0380     enum v4l2_field cap = V4L2_FIELD_ANY;
0381     enum v4l2_field ov  = V4L2_FIELD_ANY;
0382 
0383     assert_spin_locked(&dev->slock);
0384 
0385     if (dev->insuspend)
0386         return 0;
0387 
0388     /* video capture -- dma 0 + video task A */
0389     if (dev->video_q.curr) {
0390         task |= 0x01;
0391         ctrl |= SAA7134_MAIN_CTRL_TE0;
0392         irq  |= SAA7134_IRQ1_INTE_RA0_1 |
0393             SAA7134_IRQ1_INTE_RA0_0;
0394         cap = dev->field;
0395     }
0396 
0397     /* video capture -- dma 1+2 (planar modes) */
0398     if (dev->video_q.curr && dev->fmt->planar) {
0399         ctrl |= SAA7134_MAIN_CTRL_TE4 |
0400             SAA7134_MAIN_CTRL_TE5;
0401     }
0402 
0403     /* screen overlay -- dma 0 + video task B */
0404     if (dev->ovenable) {
0405         task |= 0x10;
0406         ctrl |= SAA7134_MAIN_CTRL_TE1;
0407         ov = dev->ovfield;
0408     }
0409 
0410     /* vbi capture -- dma 0 + vbi task A+B */
0411     if (dev->vbi_q.curr) {
0412         task |= 0x22;
0413         ctrl |= SAA7134_MAIN_CTRL_TE2 |
0414             SAA7134_MAIN_CTRL_TE3;
0415         irq  |= SAA7134_IRQ1_INTE_RA0_7 |
0416             SAA7134_IRQ1_INTE_RA0_6 |
0417             SAA7134_IRQ1_INTE_RA0_5 |
0418             SAA7134_IRQ1_INTE_RA0_4;
0419     }
0420 
0421     /* audio capture -- dma 3 */
0422     if (dev->dmasound.dma_running) {
0423         ctrl |= SAA7134_MAIN_CTRL_TE6;
0424         irq  |= SAA7134_IRQ1_INTE_RA3_1 |
0425             SAA7134_IRQ1_INTE_RA3_0;
0426     }
0427 
0428     /* TS capture -- dma 5 */
0429     if (dev->ts_q.curr) {
0430         ctrl |= SAA7134_MAIN_CTRL_TE5;
0431         irq  |= SAA7134_IRQ1_INTE_RA2_1 |
0432             SAA7134_IRQ1_INTE_RA2_0;
0433     }
0434 
0435     /* set task conditions + field handling */
0436     if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
0437         /* default config -- use full frames */
0438         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
0439         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
0440         saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x02);
0441         saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x02);
0442         split = 0;
0443     } else {
0444         /* split fields between tasks */
0445         if (V4L2_FIELD_TOP == cap) {
0446             /* odd A, even B, repeat */
0447             saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
0448             saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
0449         } else {
0450             /* odd B, even A, repeat */
0451             saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
0452             saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
0453         }
0454         saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x01);
0455         saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x01);
0456         split = 1;
0457     }
0458 
0459     /* irqs */
0460     saa_writeb(SAA7134_REGION_ENABLE, task);
0461     saa_writel(SAA7134_IRQ1,          irq);
0462     saa_andorl(SAA7134_MAIN_CTRL,
0463            SAA7134_MAIN_CTRL_TE0 |
0464            SAA7134_MAIN_CTRL_TE1 |
0465            SAA7134_MAIN_CTRL_TE2 |
0466            SAA7134_MAIN_CTRL_TE3 |
0467            SAA7134_MAIN_CTRL_TE4 |
0468            SAA7134_MAIN_CTRL_TE5 |
0469            SAA7134_MAIN_CTRL_TE6,
0470            ctrl);
0471     core_dbg("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
0472         task, ctrl, irq, split ? "no" : "yes");
0473 
0474     return 0;
0475 }
0476 
0477 /* ------------------------------------------------------------------ */
0478 /* IRQ handler + helpers                                              */
0479 
0480 static char *irqbits[] = {
0481     "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
0482     "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
0483     "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
0484     "GPIO16", "GPIO18", "GPIO22", "GPIO23"
0485 };
0486 #define IRQBITS ARRAY_SIZE(irqbits)
0487 
0488 static void print_irqstatus(struct saa7134_dev *dev, int loop,
0489                 unsigned long report, unsigned long status)
0490 {
0491     unsigned int i;
0492 
0493     irq_dbg(1, "[%d,%ld]: r=0x%lx s=0x%02lx",
0494         loop, jiffies, report, status);
0495     for (i = 0; i < IRQBITS; i++) {
0496         if (!(report & (1 << i)))
0497             continue;
0498         pr_cont(" %s", irqbits[i]);
0499     }
0500     if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
0501         pr_cont(" | RA0=%s,%s,%s,%ld",
0502             (status & 0x40) ? "vbi"  : "video",
0503             (status & 0x20) ? "b"    : "a",
0504             (status & 0x10) ? "odd"  : "even",
0505             (status & 0x0f));
0506     }
0507     pr_cont("\n");
0508 }
0509 
0510 static irqreturn_t saa7134_irq(int irq, void *dev_id)
0511 {
0512     struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
0513     unsigned long report,status;
0514     int loop, handled = 0;
0515 
0516     if (dev->insuspend)
0517         goto out;
0518 
0519     for (loop = 0; loop < 10; loop++) {
0520         report = saa_readl(SAA7134_IRQ_REPORT);
0521         status = saa_readl(SAA7134_IRQ_STATUS);
0522 
0523         /* If dmasound support is active and we get a sound report,
0524          * mask out the report and let the saa7134-alsa module deal
0525          * with it */
0526         if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
0527             (dev->dmasound.priv_data != NULL) )
0528         {
0529             irq_dbg(2, "preserving DMA sound interrupt\n");
0530             report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
0531         }
0532 
0533         if (0 == report) {
0534             irq_dbg(2, "no (more) work\n");
0535             goto out;
0536         }
0537 
0538         handled = 1;
0539         saa_writel(SAA7134_IRQ_REPORT,report);
0540         if (irq_debug)
0541             print_irqstatus(dev,loop,report,status);
0542 
0543 
0544         if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
0545             (report & SAA7134_IRQ_REPORT_INTL))
0546                 saa7134_irq_video_signalchange(dev);
0547 
0548 
0549         if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
0550             (status & 0x60) == 0)
0551             saa7134_irq_video_done(dev,status);
0552 
0553         if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
0554             (status & 0x40) == 0x40)
0555             saa7134_irq_vbi_done(dev,status);
0556 
0557         if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
0558             card_has_mpeg(dev)) {
0559             if (dev->mops->irq_ts_done != NULL)
0560                 dev->mops->irq_ts_done(dev, status);
0561             else
0562                 saa7134_irq_ts_done(dev, status);
0563         }
0564 
0565         if (report & SAA7134_IRQ_REPORT_GPIO16) {
0566             switch (dev->has_remote) {
0567                 case SAA7134_REMOTE_GPIO:
0568                     if (!dev->remote)
0569                         break;
0570                     if  (dev->remote->mask_keydown & 0x10000) {
0571                         saa7134_input_irq(dev);
0572                     }
0573                     break;
0574 
0575                 case SAA7134_REMOTE_I2C:
0576                     break;          /* FIXME: invoke I2C get_key() */
0577 
0578                 default:            /* GPIO16 not used by IR remote */
0579                     break;
0580             }
0581         }
0582 
0583         if (report & SAA7134_IRQ_REPORT_GPIO18) {
0584             switch (dev->has_remote) {
0585                 case SAA7134_REMOTE_GPIO:
0586                     if (!dev->remote)
0587                         break;
0588                     if ((dev->remote->mask_keydown & 0x40000) ||
0589                         (dev->remote->mask_keyup & 0x40000)) {
0590                         saa7134_input_irq(dev);
0591                     }
0592                     break;
0593 
0594                 case SAA7134_REMOTE_I2C:
0595                     break;          /* FIXME: invoke I2C get_key() */
0596 
0597                 default:            /* GPIO18 not used by IR remote */
0598                     break;
0599             }
0600         }
0601     }
0602 
0603     if (10 == loop) {
0604         print_irqstatus(dev,loop,report,status);
0605         if (report & SAA7134_IRQ_REPORT_PE) {
0606             /* disable all parity error */
0607             pr_warn("%s/irq: looping -- clearing PE (parity error!) enable bit\n",
0608                 dev->name);
0609             saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
0610         } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
0611             /* disable gpio16 IRQ */
0612             pr_warn("%s/irq: looping -- clearing GPIO16 enable bit\n",
0613                 dev->name);
0614             saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_P);
0615             saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_N);
0616         } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
0617             /* disable gpio18 IRQs */
0618             pr_warn("%s/irq: looping -- clearing GPIO18 enable bit\n",
0619                 dev->name);
0620             saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
0621             saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_N);
0622         } else {
0623             /* disable all irqs */
0624             pr_warn("%s/irq: looping -- clearing all enable bits\n",
0625                 dev->name);
0626             saa_writel(SAA7134_IRQ1,0);
0627             saa_writel(SAA7134_IRQ2,0);
0628         }
0629     }
0630 
0631  out:
0632     return IRQ_RETVAL(handled);
0633 }
0634 
0635 /* ------------------------------------------------------------------ */
0636 
0637 /* early init (no i2c, no irq) */
0638 
0639 static int saa7134_hw_enable1(struct saa7134_dev *dev)
0640 {
0641     /* RAM FIFO config */
0642     saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
0643     saa_writel(SAA7134_THRESHOULD, 0x02020202);
0644 
0645     /* enable audio + video processing */
0646     saa_writel(SAA7134_MAIN_CTRL,
0647             SAA7134_MAIN_CTRL_VPLLE |
0648             SAA7134_MAIN_CTRL_APLLE |
0649             SAA7134_MAIN_CTRL_EXOSC |
0650             SAA7134_MAIN_CTRL_EVFE1 |
0651             SAA7134_MAIN_CTRL_EVFE2 |
0652             SAA7134_MAIN_CTRL_ESFE  |
0653             SAA7134_MAIN_CTRL_EBDAC);
0654 
0655     /*
0656     * Initialize OSS _after_ enabling audio clock PLL and audio processing.
0657     * OSS initialization writes to registers via the audio DSP; these
0658     * writes will fail unless the audio clock has been started.  At worst,
0659     * audio will not work.
0660     */
0661 
0662     /* enable peripheral devices */
0663     saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
0664 
0665     /* set vertical line numbering start (vbi needs this) */
0666     saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
0667 
0668     return 0;
0669 }
0670 
0671 static int saa7134_hwinit1(struct saa7134_dev *dev)
0672 {
0673     core_dbg("hwinit1\n");
0674 
0675     saa_writel(SAA7134_IRQ1, 0);
0676     saa_writel(SAA7134_IRQ2, 0);
0677 
0678     /* Clear any stale IRQ reports */
0679     saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
0680 
0681     mutex_init(&dev->lock);
0682     spin_lock_init(&dev->slock);
0683 
0684     saa7134_track_gpio(dev,"pre-init");
0685     saa7134_video_init1(dev);
0686     saa7134_vbi_init1(dev);
0687     if (card_has_mpeg(dev))
0688         saa7134_ts_init1(dev);
0689     saa7134_input_init1(dev);
0690 
0691     saa7134_hw_enable1(dev);
0692 
0693     return 0;
0694 }
0695 
0696 /* late init (with i2c + irq) */
0697 static int saa7134_hw_enable2(struct saa7134_dev *dev)
0698 {
0699 
0700     unsigned int irq2_mask;
0701 
0702     /* enable IRQ's */
0703     irq2_mask =
0704         SAA7134_IRQ2_INTE_DEC3    |
0705         SAA7134_IRQ2_INTE_DEC2    |
0706         SAA7134_IRQ2_INTE_DEC1    |
0707         SAA7134_IRQ2_INTE_DEC0    |
0708         SAA7134_IRQ2_INTE_PE      |
0709         SAA7134_IRQ2_INTE_AR;
0710 
0711     if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
0712         if (dev->remote->mask_keydown & 0x10000)
0713             irq2_mask |= SAA7134_IRQ2_INTE_GPIO16_N;
0714         else {      /* Allow enabling both IRQ edge triggers */
0715             if (dev->remote->mask_keydown & 0x40000)
0716                 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P;
0717             if (dev->remote->mask_keyup & 0x40000)
0718                 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N;
0719         }
0720     }
0721 
0722     if (dev->has_remote == SAA7134_REMOTE_I2C) {
0723         request_module("ir-kbd-i2c");
0724     }
0725 
0726     saa_writel(SAA7134_IRQ1, 0);
0727     saa_writel(SAA7134_IRQ2, irq2_mask);
0728 
0729     return 0;
0730 }
0731 
0732 static int saa7134_hwinit2(struct saa7134_dev *dev)
0733 {
0734 
0735     core_dbg("hwinit2\n");
0736 
0737     saa7134_video_init2(dev);
0738     saa7134_tvaudio_init2(dev);
0739 
0740     saa7134_hw_enable2(dev);
0741 
0742     return 0;
0743 }
0744 
0745 
0746 /* shutdown */
0747 static int saa7134_hwfini(struct saa7134_dev *dev)
0748 {
0749     core_dbg("hwfini\n");
0750 
0751     if (card_has_mpeg(dev))
0752         saa7134_ts_fini(dev);
0753     saa7134_input_fini(dev);
0754     saa7134_vbi_fini(dev);
0755     saa7134_tvaudio_fini(dev);
0756     saa7134_video_fini(dev);
0757     return 0;
0758 }
0759 
0760 static void must_configure_manually(int has_eeprom)
0761 {
0762     unsigned int i,p;
0763 
0764     if (!has_eeprom)
0765         pr_warn("saa7134: <rant>\n"
0766             "saa7134:  Congratulations!  Your TV card vendor saved a few\n"
0767             "saa7134:  cents for a eeprom, thus your pci board has no\n"
0768             "saa7134:  subsystem ID and I can't identify it automatically\n"
0769             "saa7134: </rant>\n"
0770             "saa7134: I feel better now.  Ok, here are the good news:\n"
0771             "saa7134: You can use the card=<nr> insmod option to specify\n"
0772             "saa7134: which board do you have.  The list:\n");
0773     else
0774         pr_warn("saa7134: Board is currently unknown. You might try to use the card=<nr>\n"
0775             "saa7134: insmod option to specify which board do you have, but this is\n"
0776             "saa7134: somewhat risky, as might damage your card. It is better to ask\n"
0777             "saa7134: for support at linux-media@vger.kernel.org.\n"
0778             "saa7134: The supported cards are:\n");
0779 
0780     for (i = 0; i < saa7134_bcount; i++) {
0781         pr_warn("saa7134:   card=%d -> %-40.40s",
0782                i,saa7134_boards[i].name);
0783         for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
0784             if (saa7134_pci_tbl[p].driver_data != i)
0785                 continue;
0786             pr_cont(" %04x:%04x",
0787                    saa7134_pci_tbl[p].subvendor,
0788                    saa7134_pci_tbl[p].subdevice);
0789         }
0790         pr_cont("\n");
0791     }
0792 }
0793 
0794 static void saa7134_unregister_media_device(struct saa7134_dev *dev)
0795 {
0796 
0797 #ifdef CONFIG_MEDIA_CONTROLLER
0798     if (!dev->media_dev)
0799         return;
0800     media_device_unregister(dev->media_dev);
0801     media_device_cleanup(dev->media_dev);
0802     kfree(dev->media_dev);
0803     dev->media_dev = NULL;
0804 #endif
0805 }
0806 
0807 static void saa7134_media_release(struct saa7134_dev *dev)
0808 {
0809 #ifdef CONFIG_MEDIA_CONTROLLER
0810     int i;
0811 
0812     for (i = 0; i < SAA7134_INPUT_MAX + 1; i++)
0813         media_device_unregister_entity(&dev->input_ent[i]);
0814 #endif
0815 }
0816 
0817 #if defined(CONFIG_MEDIA_CONTROLLER)
0818 static void saa7134_create_entities(struct saa7134_dev *dev)
0819 {
0820     int ret, i;
0821     struct media_entity *entity;
0822     struct media_entity *decoder = NULL;
0823 
0824     /* Check if it is using an external analog TV demod */
0825     media_device_for_each_entity(entity, dev->media_dev) {
0826         if (entity->function == MEDIA_ENT_F_ATV_DECODER) {
0827             decoder = entity;
0828             break;
0829         }
0830     }
0831 
0832     /*
0833      * saa713x is not using an external ATV demod.
0834      * Register the internal one
0835      */
0836     if (!decoder) {
0837         dev->demod.name = "saa713x";
0838         dev->demod_pad[SAA7134_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
0839         dev->demod_pad[SAA7134_PAD_IF_INPUT].sig_type = PAD_SIGNAL_ANALOG;
0840         dev->demod_pad[SAA7134_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
0841         dev->demod_pad[SAA7134_PAD_VID_OUT].sig_type = PAD_SIGNAL_DV;
0842         dev->demod.function = MEDIA_ENT_F_ATV_DECODER;
0843 
0844         ret = media_entity_pads_init(&dev->demod, SAA7134_NUM_PADS,
0845                          dev->demod_pad);
0846         if (ret < 0)
0847             pr_err("failed to initialize demod pad!\n");
0848 
0849         ret = media_device_register_entity(dev->media_dev, &dev->demod);
0850         if (ret < 0)
0851             pr_err("failed to register demod entity!\n");
0852 
0853         dev->decoder = &dev->demod;
0854     } else {
0855         dev->decoder = decoder;
0856     }
0857 
0858     /* Initialize Video, VBI and Radio pads */
0859     dev->video_pad.flags = MEDIA_PAD_FL_SINK;
0860     ret = media_entity_pads_init(&dev->video_dev->entity, 1,
0861                      &dev->video_pad);
0862     if (ret < 0)
0863         pr_err("failed to initialize video media entity!\n");
0864 
0865     dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
0866     ret = media_entity_pads_init(&dev->vbi_dev->entity, 1,
0867                     &dev->vbi_pad);
0868     if (ret < 0)
0869         pr_err("failed to initialize vbi media entity!\n");
0870 
0871     /* Create entities for each input connector */
0872     for (i = 0; i < SAA7134_INPUT_MAX; i++) {
0873         struct media_entity *ent = &dev->input_ent[i];
0874         struct saa7134_input *in = &card_in(dev, i);
0875 
0876         if (in->type == SAA7134_NO_INPUT)
0877             break;
0878 
0879         /* This input uses the S-Video connector */
0880         if (in->type == SAA7134_INPUT_COMPOSITE_OVER_SVIDEO)
0881             continue;
0882 
0883         ent->name = saa7134_input_name[in->type];
0884         ent->flags = MEDIA_ENT_FL_CONNECTOR;
0885         dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
0886 
0887         switch (in->type) {
0888         case SAA7134_INPUT_COMPOSITE:
0889         case SAA7134_INPUT_COMPOSITE0:
0890         case SAA7134_INPUT_COMPOSITE1:
0891         case SAA7134_INPUT_COMPOSITE2:
0892         case SAA7134_INPUT_COMPOSITE3:
0893         case SAA7134_INPUT_COMPOSITE4:
0894             ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
0895             break;
0896         case SAA7134_INPUT_SVIDEO:
0897         case SAA7134_INPUT_SVIDEO0:
0898         case SAA7134_INPUT_SVIDEO1:
0899             ent->function = MEDIA_ENT_F_CONN_SVIDEO;
0900             break;
0901         default:
0902             /*
0903              * SAA7134_INPUT_TV and SAA7134_INPUT_TV_MONO.
0904              *
0905              * Please notice that neither SAA7134_INPUT_MUTE or
0906              * SAA7134_INPUT_RADIO are defined at
0907              * saa7134_board.input.
0908              */
0909             ent->function = MEDIA_ENT_F_CONN_RF;
0910             break;
0911         }
0912 
0913         ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
0914         if (ret < 0)
0915             pr_err("failed to initialize input pad[%d]!\n", i);
0916 
0917         ret = media_device_register_entity(dev->media_dev, ent);
0918         if (ret < 0)
0919             pr_err("failed to register input entity %d!\n", i);
0920     }
0921 
0922     /* Create input for Radio RF connector */
0923     if (card_has_radio(dev)) {
0924         struct saa7134_input *in = &saa7134_boards[dev->board].radio;
0925         struct media_entity *ent = &dev->input_ent[i];
0926 
0927         ent->name = saa7134_input_name[in->type];
0928         ent->flags = MEDIA_ENT_FL_CONNECTOR;
0929         dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
0930         ent->function = MEDIA_ENT_F_CONN_RF;
0931 
0932         ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
0933         if (ret < 0)
0934             pr_err("failed to initialize input pad[%d]!\n", i);
0935 
0936         ret = media_device_register_entity(dev->media_dev, ent);
0937         if (ret < 0)
0938             pr_err("failed to register input entity %d!\n", i);
0939     }
0940 }
0941 #endif
0942 
0943 static struct video_device *vdev_init(struct saa7134_dev *dev,
0944                       struct video_device *template,
0945                       char *type)
0946 {
0947     struct video_device *vfd;
0948 
0949     vfd = video_device_alloc();
0950     if (NULL == vfd)
0951         return NULL;
0952     *vfd = *template;
0953     vfd->v4l2_dev  = &dev->v4l2_dev;
0954     vfd->release = video_device_release;
0955     snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
0956          dev->name, type, saa7134_boards[dev->board].name);
0957     video_set_drvdata(vfd, dev);
0958     return vfd;
0959 }
0960 
0961 static void saa7134_unregister_video(struct saa7134_dev *dev)
0962 {
0963     saa7134_media_release(dev);
0964 
0965     if (dev->video_dev) {
0966         if (video_is_registered(dev->video_dev))
0967             vb2_video_unregister_device(dev->video_dev);
0968         else
0969             video_device_release(dev->video_dev);
0970         dev->video_dev = NULL;
0971     }
0972     if (dev->vbi_dev) {
0973         if (video_is_registered(dev->vbi_dev))
0974             vb2_video_unregister_device(dev->vbi_dev);
0975         else
0976             video_device_release(dev->vbi_dev);
0977         dev->vbi_dev = NULL;
0978     }
0979     if (dev->radio_dev) {
0980         if (video_is_registered(dev->radio_dev))
0981             vb2_video_unregister_device(dev->radio_dev);
0982         else
0983             video_device_release(dev->radio_dev);
0984         dev->radio_dev = NULL;
0985     }
0986 }
0987 
0988 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
0989                 struct saa7134_dev *dev)
0990 {
0991     int err;
0992 
0993     if (NULL != dev->mops)
0994         return;
0995     if (saa7134_boards[dev->board].mpeg != ops->type)
0996         return;
0997     err = ops->init(dev);
0998     if (0 != err)
0999         return;
1000     dev->mops = ops;
1001 }
1002 
1003 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
1004                 struct saa7134_dev *dev)
1005 {
1006     if (NULL == dev->mops)
1007         return;
1008     if (dev->mops != ops)
1009         return;
1010     dev->mops->fini(dev);
1011     dev->mops = NULL;
1012 }
1013 
1014 static int saa7134_initdev(struct pci_dev *pci_dev,
1015                const struct pci_device_id *pci_id)
1016 {
1017     struct saa7134_dev *dev;
1018     struct saa7134_mpeg_ops *mops;
1019     int err;
1020 
1021     if (saa7134_devcount == SAA7134_MAXBOARDS)
1022         return -ENOMEM;
1023 
1024     dev = kzalloc(sizeof(*dev),GFP_KERNEL);
1025     if (NULL == dev)
1026         return -ENOMEM;
1027 
1028     dev->nr = saa7134_devcount;
1029     sprintf(dev->name, "saa%x[%d]", pci_dev->device, dev->nr);
1030 
1031 #ifdef CONFIG_MEDIA_CONTROLLER
1032     dev->media_dev = kzalloc(sizeof(*dev->media_dev), GFP_KERNEL);
1033     if (!dev->media_dev) {
1034         err = -ENOMEM;
1035         goto err_free_dev;
1036     }
1037     media_device_pci_init(dev->media_dev, pci_dev, dev->name);
1038     dev->v4l2_dev.mdev = dev->media_dev;
1039 #endif
1040 
1041     err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
1042     if (err)
1043         goto err_free_dev;
1044 
1045     /* pci init */
1046     dev->pci = pci_dev;
1047     if (pci_enable_device(pci_dev)) {
1048         err = -EIO;
1049         goto err_v4l2_unregister;
1050     }
1051 
1052     /* pci quirks */
1053     if (pci_pci_problems) {
1054         if (pci_pci_problems & PCIPCI_TRITON)
1055             pr_info("%s: quirk: PCIPCI_TRITON\n", dev->name);
1056         if (pci_pci_problems & PCIPCI_NATOMA)
1057             pr_info("%s: quirk: PCIPCI_NATOMA\n", dev->name);
1058         if (pci_pci_problems & PCIPCI_VIAETBF)
1059             pr_info("%s: quirk: PCIPCI_VIAETBF\n", dev->name);
1060         if (pci_pci_problems & PCIPCI_VSFX)
1061             pr_info("%s: quirk: PCIPCI_VSFX\n", dev->name);
1062 #ifdef PCIPCI_ALIMAGIK
1063         if (pci_pci_problems & PCIPCI_ALIMAGIK) {
1064             pr_info("%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
1065                    dev->name);
1066             latency = 0x0A;
1067         }
1068 #endif
1069         if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
1070             pr_info("%s: quirk: this driver and your chipset may not work together in overlay mode.\n",
1071                 dev->name);
1072             if (!saa7134_no_overlay) {
1073                 pr_info("%s: quirk: overlay mode will be disabled.\n",
1074                         dev->name);
1075                 saa7134_no_overlay = 1;
1076             } else {
1077                 pr_info("%s: quirk: overlay mode will be forced. Use this option at your own risk.\n",
1078                         dev->name);
1079             }
1080         }
1081     }
1082     if (UNSET != latency) {
1083         pr_info("%s: setting pci latency timer to %d\n",
1084                dev->name,latency);
1085         pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
1086     }
1087 
1088     /* print pci info */
1089     dev->pci_rev = pci_dev->revision;
1090     pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
1091     pr_info("%s: found at %s, rev: %d, irq: %d, latency: %d, mmio: 0x%llx\n",
1092         dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
1093         dev->pci_lat,
1094         (unsigned long long)pci_resource_start(pci_dev, 0));
1095     pci_set_master(pci_dev);
1096     err = dma_set_mask(&pci_dev->dev, DMA_BIT_MASK(32));
1097     if (err) {
1098         pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
1099         goto err_v4l2_unregister;
1100     }
1101 
1102     /* board config */
1103     dev->board = pci_id->driver_data;
1104     if ((unsigned)card[dev->nr] < saa7134_bcount)
1105         dev->board = card[dev->nr];
1106     if (SAA7134_BOARD_UNKNOWN == dev->board)
1107         must_configure_manually(0);
1108     else if (SAA7134_BOARD_NOAUTO == dev->board) {
1109         must_configure_manually(1);
1110         dev->board = SAA7134_BOARD_UNKNOWN;
1111     }
1112     dev->autodetected = card[dev->nr] != dev->board;
1113     dev->tuner_type = saa7134_boards[dev->board].tuner_type;
1114     dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
1115     dev->radio_type = saa7134_boards[dev->board].radio_type;
1116     dev->radio_addr = saa7134_boards[dev->board].radio_addr;
1117     dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
1118     if (UNSET != tuner[dev->nr])
1119         dev->tuner_type = tuner[dev->nr];
1120     pr_info("%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
1121         dev->name,pci_dev->subsystem_vendor,
1122         pci_dev->subsystem_device,saa7134_boards[dev->board].name,
1123         dev->board, dev->autodetected ?
1124         "autodetected" : "insmod option");
1125 
1126     /* get mmio */
1127     if (!request_mem_region(pci_resource_start(pci_dev,0),
1128                 pci_resource_len(pci_dev,0),
1129                 dev->name)) {
1130         err = -EBUSY;
1131         pr_err("%s: can't get MMIO memory @ 0x%llx\n",
1132                dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
1133         goto err_v4l2_unregister;
1134     }
1135     dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
1136                  pci_resource_len(pci_dev, 0));
1137     dev->bmmio = (__u8 __iomem *)dev->lmmio;
1138     if (NULL == dev->lmmio) {
1139         err = -EIO;
1140         pr_err("%s: can't ioremap() MMIO memory\n",
1141                dev->name);
1142         goto err_release_mem_reg;
1143     }
1144 
1145     /* initialize hardware #1 */
1146     saa7134_board_init1(dev);
1147     saa7134_hwinit1(dev);
1148 
1149     /* get irq */
1150     err = request_irq(pci_dev->irq, saa7134_irq,
1151               IRQF_SHARED, dev->name, dev);
1152     if (err < 0) {
1153         pr_err("%s: can't get IRQ %d\n",
1154                dev->name,pci_dev->irq);
1155         goto err_iounmap;
1156     }
1157 
1158     /* wait a bit, register i2c bus */
1159     msleep(100);
1160     saa7134_i2c_register(dev);
1161     saa7134_board_init2(dev);
1162 
1163     saa7134_hwinit2(dev);
1164 
1165     /* load i2c helpers */
1166     if (card_is_empress(dev)) {
1167         dev->empress_sd =
1168             v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
1169                 "saa6752hs",
1170                 saa7134_boards[dev->board].empress_addr, NULL);
1171 
1172         if (dev->empress_sd)
1173             dev->empress_sd->grp_id = GRP_EMPRESS;
1174     }
1175 
1176     if (saa7134_boards[dev->board].rds_addr) {
1177         struct v4l2_subdev *sd;
1178 
1179         sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1180                 &dev->i2c_adap, "saa6588",
1181                 0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
1182         if (sd) {
1183             pr_info("%s: found RDS decoder\n", dev->name);
1184             dev->has_rds = 1;
1185         }
1186     }
1187 
1188     mutex_lock(&saa7134_devlist_lock);
1189     list_for_each_entry(mops, &mops_list, next)
1190         mpeg_ops_attach(mops, dev);
1191     list_add_tail(&dev->devlist, &saa7134_devlist);
1192     mutex_unlock(&saa7134_devlist_lock);
1193 
1194     /* check for signal */
1195     saa7134_irq_video_signalchange(dev);
1196 
1197     if (TUNER_ABSENT != dev->tuner_type)
1198         saa_call_all(dev, core, s_power, 0);
1199 
1200     /* register v4l devices */
1201     if (saa7134_no_overlay > 0)
1202         pr_info("%s: Overlay support disabled.\n", dev->name);
1203 
1204     dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1205     dev->video_dev->ctrl_handler = &dev->ctrl_handler;
1206     dev->video_dev->lock = &dev->lock;
1207     dev->video_dev->queue = &dev->video_vbq;
1208     dev->video_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1209                       V4L2_CAP_VIDEO_CAPTURE;
1210     if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1211         dev->video_dev->device_caps |= V4L2_CAP_TUNER;
1212 
1213     if (saa7134_no_overlay <= 0)
1214         dev->video_dev->device_caps |= V4L2_CAP_VIDEO_OVERLAY;
1215 
1216     err = video_register_device(dev->video_dev,VFL_TYPE_VIDEO,
1217                     video_nr[dev->nr]);
1218     if (err < 0) {
1219         pr_info("%s: can't register video device\n",
1220                dev->name);
1221         goto err_unregister_video;
1222     }
1223     pr_info("%s: registered device %s [v4l2]\n",
1224            dev->name, video_device_node_name(dev->video_dev));
1225 
1226     dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1227     dev->vbi_dev->ctrl_handler = &dev->ctrl_handler;
1228     dev->vbi_dev->lock = &dev->lock;
1229     dev->vbi_dev->queue = &dev->vbi_vbq;
1230     dev->vbi_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1231                     V4L2_CAP_VBI_CAPTURE;
1232     if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1233         dev->vbi_dev->device_caps |= V4L2_CAP_TUNER;
1234 
1235     err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1236                     vbi_nr[dev->nr]);
1237     if (err < 0)
1238         goto err_unregister_video;
1239     pr_info("%s: registered device %s\n",
1240            dev->name, video_device_node_name(dev->vbi_dev));
1241 
1242     if (card_has_radio(dev)) {
1243         dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1244         dev->radio_dev->ctrl_handler = &dev->radio_ctrl_handler;
1245         dev->radio_dev->lock = &dev->lock;
1246         dev->radio_dev->device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
1247         if (dev->has_rds)
1248             dev->radio_dev->device_caps |= V4L2_CAP_RDS_CAPTURE;
1249         err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1250                         radio_nr[dev->nr]);
1251         if (err < 0)
1252             goto err_unregister_video;
1253         pr_info("%s: registered device %s\n",
1254                dev->name, video_device_node_name(dev->radio_dev));
1255     }
1256 
1257 #ifdef CONFIG_MEDIA_CONTROLLER
1258     saa7134_create_entities(dev);
1259 
1260     err = v4l2_mc_create_media_graph(dev->media_dev);
1261     if (err) {
1262         pr_err("failed to create media graph\n");
1263         goto err_unregister_video;
1264     }
1265 #endif
1266     /* everything worked */
1267     saa7134_devcount++;
1268 
1269     if (saa7134_dmasound_init && !dev->dmasound.priv_data)
1270         saa7134_dmasound_init(dev);
1271 
1272     request_submodules(dev);
1273 
1274     /*
1275      * Do it at the end, to reduce dynamic configuration changes during
1276      * the device init. Yet, as request_modules() can be async, the
1277      * topology will likely change after load the saa7134 subdrivers.
1278      */
1279 #ifdef CONFIG_MEDIA_CONTROLLER
1280     err = media_device_register(dev->media_dev);
1281     if (err) {
1282         media_device_cleanup(dev->media_dev);
1283         goto err_unregister_video;
1284     }
1285 #endif
1286 
1287     return 0;
1288 
1289 err_unregister_video:
1290     saa7134_unregister_video(dev);
1291     list_del(&dev->devlist);
1292     saa7134_i2c_unregister(dev);
1293     free_irq(pci_dev->irq, dev);
1294 err_iounmap:
1295     saa7134_hwfini(dev);
1296     iounmap(dev->lmmio);
1297 err_release_mem_reg:
1298     release_mem_region(pci_resource_start(pci_dev,0),
1299                pci_resource_len(pci_dev,0));
1300 err_v4l2_unregister:
1301     v4l2_device_unregister(&dev->v4l2_dev);
1302 err_free_dev:
1303 #ifdef CONFIG_MEDIA_CONTROLLER
1304     kfree(dev->media_dev);
1305 #endif
1306     kfree(dev);
1307     return err;
1308 }
1309 
1310 static void saa7134_finidev(struct pci_dev *pci_dev)
1311 {
1312     struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1313     struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1314     struct saa7134_mpeg_ops *mops;
1315 
1316     flush_request_submodules(dev);
1317 
1318     /* Release DMA sound modules if present */
1319     if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1320         saa7134_dmasound_exit(dev);
1321     }
1322 
1323     /* debugging ... */
1324     if (irq_debug) {
1325         u32 report = saa_readl(SAA7134_IRQ_REPORT);
1326         u32 status = saa_readl(SAA7134_IRQ_STATUS);
1327         print_irqstatus(dev,42,report,status);
1328     }
1329 
1330     /* disable peripheral devices */
1331     saa_writeb(SAA7134_SPECIAL_MODE,0);
1332 
1333     /* shutdown hardware */
1334     saa_writel(SAA7134_IRQ1,0);
1335     saa_writel(SAA7134_IRQ2,0);
1336     saa_writel(SAA7134_MAIN_CTRL,0);
1337 
1338     /* shutdown subsystems */
1339     saa7134_hwfini(dev);
1340 
1341     /* unregister */
1342     mutex_lock(&saa7134_devlist_lock);
1343     list_del(&dev->devlist);
1344     list_for_each_entry(mops, &mops_list, next)
1345         mpeg_ops_detach(mops, dev);
1346     mutex_unlock(&saa7134_devlist_lock);
1347     saa7134_devcount--;
1348 
1349     saa7134_i2c_unregister(dev);
1350     saa7134_unregister_video(dev);
1351 
1352 
1353     /* the DMA sound modules should be unloaded before reaching
1354        this, but just in case they are still present... */
1355     if (dev->dmasound.priv_data != NULL) {
1356         free_irq(pci_dev->irq, &dev->dmasound);
1357         dev->dmasound.priv_data = NULL;
1358     }
1359 
1360 
1361     /* release resources */
1362     free_irq(pci_dev->irq, dev);
1363     iounmap(dev->lmmio);
1364     release_mem_region(pci_resource_start(pci_dev,0),
1365                pci_resource_len(pci_dev,0));
1366 
1367     v4l2_device_unregister(&dev->v4l2_dev);
1368 
1369     saa7134_unregister_media_device(dev);
1370 
1371     /* free memory */
1372     kfree(dev);
1373 }
1374 
1375 /* resends a current buffer in queue after resume */
1376 static int __maybe_unused saa7134_buffer_requeue(struct saa7134_dev *dev,
1377                          struct saa7134_dmaqueue *q)
1378 {
1379     struct saa7134_buf *buf, *next;
1380 
1381     assert_spin_locked(&dev->slock);
1382 
1383     buf  = q->curr;
1384     next = buf;
1385     core_dbg("buffer_requeue\n");
1386 
1387     if (!buf)
1388         return 0;
1389 
1390     core_dbg("buffer_requeue : resending active buffer\n");
1391 
1392     if (!list_empty(&q->queue))
1393         next = list_entry(q->queue.next, struct saa7134_buf,
1394                       entry);
1395     buf->activate(dev, buf, next);
1396 
1397     return 0;
1398 }
1399 
1400 static int __maybe_unused saa7134_suspend(struct device *dev_d)
1401 {
1402     struct pci_dev *pci_dev = to_pci_dev(dev_d);
1403     struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1404     struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1405 
1406     /* disable overlay - apps should enable it explicitly on resume*/
1407     dev->ovenable = 0;
1408 
1409     /* Disable interrupts, DMA, and rest of the chip*/
1410     saa_writel(SAA7134_IRQ1, 0);
1411     saa_writel(SAA7134_IRQ2, 0);
1412     saa_writel(SAA7134_MAIN_CTRL, 0);
1413 
1414     dev->insuspend = 1;
1415     synchronize_irq(pci_dev->irq);
1416 
1417     /* ACK interrupts once more, just in case,
1418         since the IRQ handler won't ack them anymore*/
1419 
1420     saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1421 
1422     /* Disable timeout timers - if we have active buffers, we will
1423        fill them on resume*/
1424 
1425     del_timer(&dev->video_q.timeout);
1426     del_timer(&dev->vbi_q.timeout);
1427     del_timer(&dev->ts_q.timeout);
1428 
1429     if (dev->remote && dev->remote->dev->users)
1430         saa7134_ir_close(dev->remote->dev);
1431 
1432     return 0;
1433 }
1434 
1435 static int __maybe_unused saa7134_resume(struct device *dev_d)
1436 {
1437     struct v4l2_device *v4l2_dev = dev_get_drvdata(dev_d);
1438     struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1439     unsigned long flags;
1440 
1441     /* Do things that are done in saa7134_initdev ,
1442         except of initializing memory structures.*/
1443 
1444     saa7134_board_init1(dev);
1445 
1446     /* saa7134_hwinit1 */
1447     if (saa7134_boards[dev->board].video_out)
1448         saa7134_videoport_init(dev);
1449     if (card_has_mpeg(dev))
1450         saa7134_ts_init_hw(dev);
1451     if (dev->remote && dev->remote->dev->users)
1452         saa7134_ir_open(dev->remote->dev);
1453     saa7134_hw_enable1(dev);
1454 
1455     msleep(100);
1456 
1457     saa7134_board_init2(dev);
1458 
1459     /*saa7134_hwinit2*/
1460     saa7134_set_tvnorm_hw(dev);
1461     saa7134_tvaudio_setmute(dev);
1462     saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1463     saa7134_tvaudio_init(dev);
1464     saa7134_enable_i2s(dev);
1465     saa7134_hw_enable2(dev);
1466 
1467     saa7134_irq_video_signalchange(dev);
1468 
1469     /*resume unfinished buffer(s)*/
1470     spin_lock_irqsave(&dev->slock, flags);
1471     saa7134_buffer_requeue(dev, &dev->video_q);
1472     saa7134_buffer_requeue(dev, &dev->vbi_q);
1473     saa7134_buffer_requeue(dev, &dev->ts_q);
1474 
1475     /* FIXME: Disable DMA audio sound - temporary till proper support
1476           is implemented*/
1477 
1478     dev->dmasound.dma_running = 0;
1479 
1480     /* start DMA now*/
1481     dev->insuspend = 0;
1482     smp_wmb();
1483     saa7134_set_dmabits(dev);
1484     spin_unlock_irqrestore(&dev->slock, flags);
1485 
1486     return 0;
1487 }
1488 
1489 /* ----------------------------------------------------------- */
1490 
1491 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1492 {
1493     struct saa7134_dev *dev;
1494 
1495     mutex_lock(&saa7134_devlist_lock);
1496     list_for_each_entry(dev, &saa7134_devlist, devlist)
1497         mpeg_ops_attach(ops, dev);
1498     list_add_tail(&ops->next,&mops_list);
1499     mutex_unlock(&saa7134_devlist_lock);
1500     return 0;
1501 }
1502 
1503 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1504 {
1505     struct saa7134_dev *dev;
1506 
1507     mutex_lock(&saa7134_devlist_lock);
1508     list_del(&ops->next);
1509     list_for_each_entry(dev, &saa7134_devlist, devlist)
1510         mpeg_ops_detach(ops, dev);
1511     mutex_unlock(&saa7134_devlist_lock);
1512 }
1513 
1514 EXPORT_SYMBOL(saa7134_ts_register);
1515 EXPORT_SYMBOL(saa7134_ts_unregister);
1516 
1517 /* ----------------------------------------------------------- */
1518 
1519 static SIMPLE_DEV_PM_OPS(saa7134_pm_ops, saa7134_suspend, saa7134_resume);
1520 
1521 static struct pci_driver saa7134_pci_driver = {
1522     .name     = "saa7134",
1523     .id_table = saa7134_pci_tbl,
1524     .probe    = saa7134_initdev,
1525     .remove   = saa7134_finidev,
1526     .driver.pm = &saa7134_pm_ops,
1527 };
1528 
1529 static int __init saa7134_init(void)
1530 {
1531     pr_info("saa7130/34: v4l2 driver version %s loaded\n",
1532            SAA7134_VERSION);
1533     return pci_register_driver(&saa7134_pci_driver);
1534 }
1535 
1536 static void __exit saa7134_fini(void)
1537 {
1538     pci_unregister_driver(&saa7134_pci_driver);
1539 }
1540 
1541 module_init(saa7134_init);
1542 module_exit(saa7134_fini);
1543 
1544 /* ----------------------------------------------------------- */
1545 
1546 EXPORT_SYMBOL(saa7134_set_gpio);
1547 EXPORT_SYMBOL(saa7134_boards);
1548 
1549 /* ----------------- for the DMA sound modules --------------- */
1550 
1551 EXPORT_SYMBOL(saa7134_dmasound_init);
1552 EXPORT_SYMBOL(saa7134_dmasound_exit);
1553 EXPORT_SYMBOL(saa7134_pgtable_free);
1554 EXPORT_SYMBOL(saa7134_pgtable_build);
1555 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1556 EXPORT_SYMBOL(saa7134_set_dmabits);
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