diff options
Diffstat (limited to 'drivers/media/video/saa7134/saa7134-core.c')
| -rw-r--r-- | drivers/media/video/saa7134/saa7134-core.c | 214 |
1 files changed, 160 insertions, 54 deletions
diff --git a/drivers/media/video/saa7134/saa7134-core.c b/drivers/media/video/saa7134/saa7134-core.c index 25f84701a8e..1a4a24471f2 100644 --- a/drivers/media/video/saa7134/saa7134-core.c +++ b/drivers/media/video/saa7134/saa7134-core.c @@ -23,7 +23,6 @@ #include <linux/init.h> #include <linux/list.h> #include <linux/module.h> -#include <linux/moduleparam.h> #include <linux/kernel.h> #include <linux/slab.h> #include <linux/kmod.h> @@ -32,6 +31,7 @@ #include <linux/delay.h> #include <linux/mutex.h> #include <linux/dma-mapping.h> +#include <linux/pm.h> #include "saa7134-reg.h" #include "saa7134.h" @@ -237,9 +237,10 @@ int saa7134_buffer_startpage(struct saa7134_buf *buf) unsigned long saa7134_buffer_base(struct saa7134_buf *buf) { unsigned long base; + struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); base = saa7134_buffer_startpage(buf) * 4096; - base += buf->vb.dma.sglist[0].offset; + base += dma->sglist[0].offset; return base; } @@ -287,11 +288,12 @@ void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt) void saa7134_dma_free(struct videobuf_queue *q,struct saa7134_buf *buf) { + struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); BUG_ON(in_interrupt()); videobuf_waiton(&buf->vb,0,0); - videobuf_dma_unmap(q, &buf->vb.dma); - videobuf_dma_free(&buf->vb.dma); + videobuf_dma_unmap(q, dma); + videobuf_dma_free(dma); buf->vb.state = STATE_NEEDS_INIT; } @@ -391,6 +393,32 @@ void saa7134_buffer_timeout(unsigned long data) spin_unlock_irqrestore(&dev->slock,flags); } +/* resends a current buffer in queue after resume */ + +int saa7134_buffer_requeue(struct saa7134_dev *dev, + struct saa7134_dmaqueue *q) +{ + struct saa7134_buf *buf, *next; + + assert_spin_locked(&dev->slock); + + buf = q->curr; + next = buf; + dprintk("buffer_requeue\n"); + + if (!buf) + return 0; + + dprintk("buffer_requeue : resending active buffers \n"); + + if (!list_empty(&q->queue)) + next = list_entry(q->queue.next, struct saa7134_buf, + vb.queue); + buf->activate(dev, buf, next); + + return 0; +} + /* ------------------------------------------------------------------ */ int saa7134_set_dmabits(struct saa7134_dev *dev) @@ -401,6 +429,9 @@ int saa7134_set_dmabits(struct saa7134_dev *dev) assert_spin_locked(&dev->slock); + if (dev->inresume) + return 0; + /* video capture -- dma 0 + video task A */ if (dev->video_q.curr) { task |= 0x01; @@ -560,8 +591,10 @@ static irqreturn_t saa7134_irq(int irq, void *dev_id) print_irqstatus(dev,loop,report,status); - if (report & SAA7134_IRQ_REPORT_RDCAP /* _INTL */) - saa7134_irq_video_intl(dev); + if ((report & SAA7134_IRQ_REPORT_RDCAP) || + (report & SAA7134_IRQ_REPORT_INTL)) + saa7134_irq_video_signalchange(dev); + if ((report & SAA7134_IRQ_REPORT_DONE_RA0) && (status & 0x60) == 0) @@ -646,6 +679,39 @@ static irqreturn_t saa7134_irq(int irq, void *dev_id) /* ------------------------------------------------------------------ */ /* early init (no i2c, no irq) */ + +static int saa7134_hw_enable1(struct saa7134_dev *dev) +{ + /* RAM FIFO config */ + saa_writel(SAA7134_FIFO_SIZE, 0x08070503); + saa_writel(SAA7134_THRESHOULD, 0x02020202); + + /* enable audio + video processing */ + saa_writel(SAA7134_MAIN_CTRL, + SAA7134_MAIN_CTRL_VPLLE | + SAA7134_MAIN_CTRL_APLLE | + SAA7134_MAIN_CTRL_EXOSC | + SAA7134_MAIN_CTRL_EVFE1 | + SAA7134_MAIN_CTRL_EVFE2 | + SAA7134_MAIN_CTRL_ESFE | + SAA7134_MAIN_CTRL_EBDAC); + + /* + * Initialize OSS _after_ enabling audio clock PLL and audio processing. + * OSS initialization writes to registers via the audio DSP; these + * writes will fail unless the audio clock has been started. At worst, + * audio will not work. + */ + + /* enable peripheral devices */ + saa_writeb(SAA7134_SPECIAL_MODE, 0x01); + + /* set vertical line numbering start (vbi needs this) */ + saa_writeb(SAA7134_SOURCE_TIMING2, 0x20); + + return 0; +} + static int saa7134_hwinit1(struct saa7134_dev *dev) { dprintk("hwinit1\n"); @@ -662,44 +728,16 @@ static int saa7134_hwinit1(struct saa7134_dev *dev) saa7134_ts_init1(dev); saa7134_input_init1(dev); - /* RAM FIFO config */ - saa_writel(SAA7134_FIFO_SIZE, 0x08070503); - saa_writel(SAA7134_THRESHOULD,0x02020202); - - /* enable audio + video processing */ - saa_writel(SAA7134_MAIN_CTRL, - SAA7134_MAIN_CTRL_VPLLE | - SAA7134_MAIN_CTRL_APLLE | - SAA7134_MAIN_CTRL_EXOSC | - SAA7134_MAIN_CTRL_EVFE1 | - SAA7134_MAIN_CTRL_EVFE2 | - SAA7134_MAIN_CTRL_ESFE | - SAA7134_MAIN_CTRL_EBDAC); - - /* - * Initialize OSS _after_ enabling audio clock PLL and audio processing. - * OSS initialization writes to registers via the audio DSP; these - * writes will fail unless the audio clock has been started. At worst, - * audio will not work. - */ - - /* enable peripheral devices */ - saa_writeb(SAA7134_SPECIAL_MODE, 0x01); - - /* set vertical line numbering start (vbi needs this) */ - saa_writeb(SAA7134_SOURCE_TIMING2, 0x20); + saa7134_hw_enable1(dev); return 0; } /* late init (with i2c + irq) */ -static int saa7134_hwinit2(struct saa7134_dev *dev) +static int saa7134_hw_enable2(struct saa7134_dev *dev) { - unsigned int irq2_mask; - dprintk("hwinit2\n"); - saa7134_video_init2(dev); - saa7134_tvaudio_init2(dev); + unsigned int irq2_mask; /* enable IRQ's */ irq2_mask = @@ -725,6 +763,20 @@ static int saa7134_hwinit2(struct saa7134_dev *dev) return 0; } +static int saa7134_hwinit2(struct saa7134_dev *dev) +{ + + dprintk("hwinit2\n"); + + saa7134_video_init2(dev); + saa7134_tvaudio_init2(dev); + + saa7134_hw_enable2(dev); + + return 0; +} + + /* shutdown */ static int saa7134_hwfini(struct saa7134_dev *dev) { @@ -838,7 +890,6 @@ static int __devinit saa7134_initdev(struct pci_dev *pci_dev, const struct pci_device_id *pci_id) { struct saa7134_dev *dev; - struct list_head *item; struct saa7134_mpeg_ops *mops; int err; @@ -1020,15 +1071,13 @@ static int __devinit saa7134_initdev(struct pci_dev *pci_dev, saa7134_devcount++; mutex_lock(&devlist_lock); - list_for_each(item,&mops_list) { - mops = list_entry(item, struct saa7134_mpeg_ops, next); + list_for_each_entry(mops, &mops_list, next) mpeg_ops_attach(mops, dev); - } list_add_tail(&dev->devlist,&saa7134_devlist); mutex_unlock(&devlist_lock); /* check for signal */ - saa7134_irq_video_intl(dev); + saa7134_irq_video_signalchange(dev); if (saa7134_dmasound_init && !dev->dmasound.priv_data) { saa7134_dmasound_init(dev); @@ -1057,7 +1106,6 @@ static int __devinit saa7134_initdev(struct pci_dev *pci_dev, static void __devexit saa7134_finidev(struct pci_dev *pci_dev) { struct saa7134_dev *dev = pci_get_drvdata(pci_dev); - struct list_head *item; struct saa7134_mpeg_ops *mops; /* Release DMA sound modules if present */ @@ -1086,10 +1134,8 @@ static void __devexit saa7134_finidev(struct pci_dev *pci_dev) /* unregister */ mutex_lock(&devlist_lock); list_del(&dev->devlist); - list_for_each(item,&mops_list) { - mops = list_entry(item, struct saa7134_mpeg_ops, next); + list_for_each_entry(mops, &mops_list, next) mpeg_ops_detach(mops, dev); - } mutex_unlock(&devlist_lock); saa7134_devcount--; @@ -1117,18 +1163,79 @@ static void __devexit saa7134_finidev(struct pci_dev *pci_dev) kfree(dev); } +static int saa7134_suspend(struct pci_dev *pci_dev , pm_message_t state) +{ + + struct saa7134_dev *dev = pci_get_drvdata(pci_dev); + + /* disable overlay - apps should enable it explicitly on resume*/ + dev->ovenable = 0; + + /* Disable interrupts, DMA, and rest of the chip*/ + saa_writel(SAA7134_IRQ1, 0); + saa_writel(SAA7134_IRQ2, 0); + saa_writel(SAA7134_MAIN_CTRL, 0); + + pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state)); + pci_save_state(pci_dev); + + return 0; +} + +static int saa7134_resume(struct pci_dev *pci_dev) +{ + + struct saa7134_dev *dev = pci_get_drvdata(pci_dev); + unsigned int flags; + + pci_restore_state(pci_dev); + pci_set_power_state(pci_dev, PCI_D0); + + /* Do things that are done in saa7134_initdev , + except of initializing memory structures.*/ + + dev->inresume = 1; + saa7134_board_init1(dev); + + if (saa7134_boards[dev->board].video_out) + saa7134_videoport_init(dev); + + if (card_has_mpeg(dev)) + saa7134_ts_init_hw(dev); + + saa7134_hw_enable1(dev); + saa7134_set_decoder(dev); + saa7134_i2c_call_clients(dev, VIDIOC_S_STD, &dev->tvnorm->id); + saa7134_board_init2(dev); + saa7134_hw_enable2(dev); + + saa7134_tvaudio_setmute(dev); + saa7134_tvaudio_setvolume(dev, dev->ctl_volume); + saa7134_enable_i2s(dev); + + /*resume unfinished buffer(s)*/ + spin_lock_irqsave(&dev->slock, flags); + saa7134_buffer_requeue(dev, &dev->video_q); + saa7134_buffer_requeue(dev, &dev->vbi_q); + saa7134_buffer_requeue(dev, &dev->ts_q); + + /* start DMA now*/ + dev->inresume = 0; + saa7134_set_dmabits(dev); + spin_unlock_irqrestore(&dev->slock, flags); + + return 0; +} + /* ----------------------------------------------------------- */ int saa7134_ts_register(struct saa7134_mpeg_ops *ops) { - struct list_head *item; struct saa7134_dev *dev; mutex_lock(&devlist_lock); - list_for_each(item,&saa7134_devlist) { - dev = list_entry(item, struct saa7134_dev, devlist); + list_for_each_entry(dev, &saa7134_devlist, devlist) mpeg_ops_attach(ops, dev); - } list_add_tail(&ops->next,&mops_list); mutex_unlock(&devlist_lock); return 0; @@ -1136,15 +1243,12 @@ int saa7134_ts_register(struct saa7134_mpeg_ops *ops) void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops) { - struct list_head *item; struct saa7134_dev *dev; mutex_lock(&devlist_lock); list_del(&ops->next); - list_for_each(item,&saa7134_devlist) { - dev = list_entry(item, struct saa7134_dev, devlist); + list_for_each_entry(dev, &saa7134_devlist, devlist) mpeg_ops_detach(ops, dev); - } mutex_unlock(&devlist_lock); } @@ -1158,6 +1262,8 @@ static struct pci_driver saa7134_pci_driver = { .id_table = saa7134_pci_tbl, .probe = saa7134_initdev, .remove = __devexit_p(saa7134_finidev), + .suspend = saa7134_suspend, + .resume = saa7134_resume }; static int saa7134_init(void) |