forked from luck/tmp_suning_uos_patched
V4L/DVB (3344c): Pci probing for stradis driver
- Pci probing functions added, some functions were rewritten. - Use PCI_DEVICE macro. - dev_ used for printing when pci_dev available. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Jiri Slaby
Mauro Carvalho Chehab
parent
d4437d3fad
commit
9ae82293ff
@ -73,7 +73,6 @@ struct saa7146
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unsigned int nr;
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unsigned long irq; /* IRQ used by SAA7146 card */
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unsigned short id;
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struct pci_dev *dev;
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unsigned char revision;
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unsigned char boardcfg[64]; /* 64 bytes of config from eeprom */
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unsigned long saa7146_adr; /* bus address of IO mem from PCI BIOS */
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@ -1991,12 +1991,10 @@ static struct video_device saa_template =
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.minor = -1,
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};
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static int configure_saa7146(struct pci_dev *dev, int num)
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static int __devinit configure_saa7146(struct pci_dev *pdev, int num)
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{
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int result;
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struct saa7146 *saa;
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saa = &saa7146s[num];
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struct saa7146 *saa = &saa7146s[num];
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saa->endmarkhead = saa->endmarktail = 0;
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saa->win.x = saa->win.y = 0;
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@ -2013,7 +2011,6 @@ static int configure_saa7146(struct pci_dev *dev, int num)
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saa->picture.contrast = 38768;
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saa->picture.colour = 32768;
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saa->cap = 0;
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saa->dev = dev;
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saa->nr = num;
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saa->playmode = VID_PLAY_NORMAL;
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memset(saa->boardcfg, 0, 64); /* clear board config area */
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@ -2033,14 +2030,14 @@ static int configure_saa7146(struct pci_dev *dev, int num)
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init_waitqueue_head(&saa->vidq);
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spin_lock_init(&saa->lock);
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if (pci_enable_device(dev))
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if (pci_enable_device(pdev))
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return -EIO;
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saa->id = dev->device;
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saa->irq = dev->irq;
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saa->id = pdev->device;
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saa->irq = pdev->irq;
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saa->video_dev.minor = -1;
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saa->saa7146_adr = pci_resource_start(dev, 0);
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pci_read_config_byte(dev, PCI_CLASS_REVISION, &saa->revision);
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saa->saa7146_adr = pci_resource_start(pdev, 0);
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pci_read_config_byte(pdev, PCI_CLASS_REVISION, &saa->revision);
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saa->saa7146_mem = ioremap(saa->saa7146_adr, 0x200);
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if (!saa->saa7146_mem)
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@ -2051,16 +2048,15 @@ static int configure_saa7146(struct pci_dev *dev, int num)
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result = request_irq(saa->irq, saa7146_irq,
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SA_SHIRQ | SA_INTERRUPT, "stradis", (void *) saa);
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if (result == -EINVAL)
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printk(KERN_ERR "stradis%d: Bad irq number or handler\n",
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num);
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dev_err(&pdev->dev, "%d: Bad irq number or handler\n", num);
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if (result == -EBUSY)
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printk(KERN_ERR "stradis%d: IRQ %ld busy, change your PnP"
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" config in BIOS\n", num, saa->irq);
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dev_err(&pdev->dev, "%d: IRQ %ld busy, change your PnP config "
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"in BIOS\n", num, saa->irq);
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if (result < 0) {
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iounmap(saa->saa7146_mem);
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return result;
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}
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pci_set_master(dev);
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pci_set_master(pdev);
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if (video_register_device(&saa->video_dev, VFL_TYPE_GRABBER, video_nr) < 0) {
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iounmap(saa->saa7146_mem);
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return -1;
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@ -2068,10 +2064,11 @@ static int configure_saa7146(struct pci_dev *dev, int num)
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return 0;
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}
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static int init_saa7146(int i)
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static int __devinit init_saa7146(int i, struct device *dev)
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{
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struct saa7146 *saa = &saa7146s[i];
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memset(saa, 0, sizeof(*saa));
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saa->user = 0;
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/* reset the saa7146 */
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saawrite(0xffff0000, SAA7146_MC1);
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@ -2104,7 +2101,7 @@ static int init_saa7146(int i)
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/* allocate 32k dma buffer + 4k for page table */
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if ((saa->dmadebi = kmalloc(32768 + 4096, GFP_KERNEL)) == NULL) {
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printk(KERN_ERR "stradis%d: debi kmalloc failed\n", i);
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dev_err(dev, "%d: debi kmalloc failed\n", i);
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return -1;
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}
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#if 0
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@ -2117,19 +2114,19 @@ static int init_saa7146(int i)
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saa->audtail = saa->vidtail = saa->osdtail = 0;
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if (saa->vidbuf == NULL)
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if ((saa->vidbuf = vmalloc(524288)) == NULL) {
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printk(KERN_ERR "stradis%d: malloc failed\n", saa->nr);
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dev_err(dev, "%d: malloc failed\n", saa->nr);
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return -ENOMEM;
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}
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if (saa->audbuf == NULL)
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if ((saa->audbuf = vmalloc(65536)) == NULL) {
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printk(KERN_ERR "stradis%d: malloc failed\n", saa->nr);
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dev_err(dev, "%d: malloc failed\n", saa->nr);
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vfree(saa->vidbuf);
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saa->vidbuf = NULL;
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return -ENOMEM;
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}
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if (saa->osdbuf == NULL)
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if ((saa->osdbuf = vmalloc(131072)) == NULL) {
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printk(KERN_ERR "stradis%d: malloc failed\n", saa->nr);
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dev_err(dev, "%d: malloc failed\n", saa->nr);
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vfree(saa->vidbuf);
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vfree(saa->audbuf);
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saa->vidbuf = saa->audbuf = NULL;
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@ -2137,7 +2134,7 @@ static int init_saa7146(int i)
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}
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/* allocate 81920 byte buffer for clipping */
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if ((saa->dmavid2 = kmalloc(VIDEO_CLIPMAP_SIZE, GFP_KERNEL)) == NULL) {
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printk(KERN_ERR "stradis%d: clip kmalloc failed\n", saa->nr);
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dev_err(dev, "%d: clip kmalloc failed\n", saa->nr);
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vfree(saa->vidbuf);
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vfree(saa->audbuf);
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vfree(saa->osdbuf);
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@ -2159,14 +2156,11 @@ static int init_saa7146(int i)
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return 0;
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}
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static void release_saa(void)
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static void stradis_release_saa(struct pci_dev *pdev)
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{
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u8 command;
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int i;
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struct saa7146 *saa;
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for (i = 0; i < saa_num; i++) {
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saa = &saa7146s[i];
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int i = (int)pci_get_drvdata(pdev);
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struct saa7146 *saa = &saa7146s[i];
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/* turn off all capturing, DMA and IRQs */
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saawrite(0xffff0000, SAA7146_MC1); /* reset chip */
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@ -2175,9 +2169,9 @@ static void release_saa(void)
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saawrite(0xffffffffUL, SAA7146_ISR);
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/* disable PCI bus-mastering */
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pci_read_config_byte(saa->dev, PCI_COMMAND, &command);
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pci_read_config_byte(pdev, PCI_COMMAND, &command);
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command &= ~PCI_COMMAND_MASTER;
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pci_write_config_byte(saa->dev, PCI_COMMAND, command);
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pci_write_config_byte(pdev, PCI_COMMAND, command);
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/* unmap and free memory */
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saa->audhead = saa->audtail = saa->osdhead = 0;
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@ -2202,46 +2196,81 @@ static void release_saa(void)
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iounmap(saa->saa7146_mem);
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if (saa->video_dev.minor != -1)
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video_unregister_device(&saa->video_dev);
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}
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}
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static int __init stradis_init (void)
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static int __devinit stradis_probe(struct pci_dev *pdev,
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const struct pci_device_id *ent)
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{
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struct pci_dev *dev = NULL;
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int result = 0, i;
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int retval = -EINVAL;
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if (saa_num >= SAA7146_MAX)
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goto err;
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if (!pdev->subsystem_vendor)
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dev_info(&pdev->dev, "%d: rev1 decoder\n", saa_num);
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else
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dev_info(&pdev->dev, "%d: SDM2xx found\n", saa_num);
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pci_set_drvdata(pdev, (void *)saa_num);
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retval = configure_saa7146(pdev, saa_num);
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if (retval) {
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dev_err(&pdev->dev, "%d: error in configuring\n", saa_num);
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goto err;
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}
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if (init_saa7146(saa_num, &pdev->dev) < 0) {
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dev_err(&pdev->dev, "%d: error in initialization\n", saa_num);
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retval = -EIO;
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goto errrel;
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}
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saa_num++;
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return 0;
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errrel:
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stradis_release_saa(pdev);
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err:
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return retval;
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}
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static void __devexit stradis_remove(struct pci_dev *pdev)
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{
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stradis_release_saa(pdev);
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}
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static struct pci_device_id stradis_pci_tbl[] = {
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{ PCI_DEVICE(PCI_VENDOR_ID_PHILIPS, PCI_DEVICE_ID_PHILIPS_SAA7146) },
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{ 0 }
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};
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MODULE_DEVICE_TABLE(pci, stradis_pci_tbl);
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static struct pci_driver stradis_driver = {
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.name = "stradis",
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.id_table = stradis_pci_tbl,
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.probe = stradis_probe,
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.remove = __devexit_p(stradis_remove)
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};
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int __init stradis_init(void)
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{
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int retval;
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saa_num = 0;
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while ((dev = pci_find_device(PCI_VENDOR_ID_PHILIPS, PCI_DEVICE_ID_PHILIPS_SAA7146, dev))) {
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if (!dev->subsystem_vendor)
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printk(KERN_INFO "stradis%d: rev1 decoder\n", saa_num);
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else
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printk(KERN_INFO "stradis%d: SDM2xx found\n", saa_num);
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result = configure_saa7146(dev, saa_num++);
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if (result)
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return result;
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}
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if (saa_num)
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printk(KERN_INFO "stradis: %d card(s) found.\n", saa_num);
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else
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return -EINVAL;
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for (i = 0; i < saa_num; i++)
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if (init_saa7146(i) < 0) {
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release_saa();
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return -EIO;
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}
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return 0;
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retval = pci_register_driver(&stradis_driver);
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if (retval)
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printk(KERN_ERR "stradis: Unable to register pci driver.\n");
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return retval;
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}
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static void __exit stradis_exit (void)
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void __exit stradis_exit(void)
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{
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release_saa();
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pci_unregister_driver(&stradis_driver);
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printk(KERN_INFO "stradis: module cleanup complete\n");
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}
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module_init(stradis_init);
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module_exit(stradis_exit);
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