diff options
Diffstat (limited to 'drivers/media/pci/saa7134/saa7134-core.c')
| -rw-r--r-- | drivers/media/pci/saa7134/saa7134-core.c | 1366 |
1 files changed, 1366 insertions, 0 deletions
diff --git a/drivers/media/pci/saa7134/saa7134-core.c b/drivers/media/pci/saa7134/saa7134-core.c new file mode 100644 index 0000000..45f0aca --- /dev/null +++ b/drivers/media/pci/saa7134/saa7134-core.c @@ -0,0 +1,1366 @@ +/* + * + * device driver for philips saa7134 based TV cards + * driver core + * + * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs] + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/init.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/kmod.h> +#include <linux/sound.h> +#include <linux/interrupt.h> +#include <linux/delay.h> +#include <linux/mutex.h> +#include <linux/dma-mapping.h> +#include <linux/pm.h> + +#include "saa7134-reg.h" +#include "saa7134.h" + +MODULE_DESCRIPTION("v4l2 driver module for saa7130/34 based TV cards"); +MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(SAA7134_VERSION); + + +/* ------------------------------------------------------------------ */ + +static unsigned int irq_debug; +module_param(irq_debug, int, 0644); +MODULE_PARM_DESC(irq_debug,"enable debug messages [IRQ handler]"); + +static unsigned int core_debug; +module_param(core_debug, int, 0644); +MODULE_PARM_DESC(core_debug,"enable debug messages [core]"); + +static unsigned int gpio_tracking; +module_param(gpio_tracking, int, 0644); +MODULE_PARM_DESC(gpio_tracking,"enable debug messages [gpio]"); + +static unsigned int alsa = 1; +module_param(alsa, int, 0644); +MODULE_PARM_DESC(alsa,"enable/disable ALSA DMA sound [dmasound]"); + +static unsigned int latency = UNSET; +module_param(latency, int, 0444); +MODULE_PARM_DESC(latency,"pci latency timer"); + +int saa7134_no_overlay=-1; +module_param_named(no_overlay, saa7134_no_overlay, int, 0444); +MODULE_PARM_DESC(no_overlay,"allow override overlay default (0 disables, 1 enables)" + " [some VIA/SIS chipsets are known to have problem with overlay]"); + +static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET }; +static unsigned int vbi_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET }; +static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET }; +static unsigned int tuner[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET }; +static unsigned int card[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET }; + + +module_param_array(video_nr, int, NULL, 0444); +module_param_array(vbi_nr, int, NULL, 0444); +module_param_array(radio_nr, int, NULL, 0444); +module_param_array(tuner, int, NULL, 0444); +module_param_array(card, int, NULL, 0444); + +MODULE_PARM_DESC(video_nr, "video device number"); +MODULE_PARM_DESC(vbi_nr, "vbi device number"); +MODULE_PARM_DESC(radio_nr, "radio device number"); +MODULE_PARM_DESC(tuner, "tuner type"); +MODULE_PARM_DESC(card, "card type"); + +DEFINE_MUTEX(saa7134_devlist_lock); +EXPORT_SYMBOL(saa7134_devlist_lock); +LIST_HEAD(saa7134_devlist); +EXPORT_SYMBOL(saa7134_devlist); +static LIST_HEAD(mops_list); +static unsigned int saa7134_devcount; + +int (*saa7134_dmasound_init)(struct saa7134_dev *dev); +int (*saa7134_dmasound_exit)(struct saa7134_dev *dev); + +#define dprintk(fmt, arg...) if (core_debug) \ + printk(KERN_DEBUG "%s/core: " fmt, dev->name , ## arg) + +void saa7134_track_gpio(struct saa7134_dev *dev, char *msg) +{ + unsigned long mode,status; + + if (!gpio_tracking) + return; + /* rising SAA7134_GPIO_GPRESCAN reads the status */ + saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,0); + saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,SAA7134_GPIO_GPRESCAN); + mode = saa_readl(SAA7134_GPIO_GPMODE0 >> 2) & 0xfffffff; + status = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & 0xfffffff; + printk(KERN_DEBUG + "%s: gpio: mode=0x%07lx in=0x%07lx out=0x%07lx [%s]\n", + dev->name, mode, (~mode) & status, mode & status, msg); +} + +void saa7134_set_gpio(struct saa7134_dev *dev, int bit_no, int value) +{ + u32 index, bitval; + + index = 1 << bit_no; + switch (value) { + case 0: /* static value */ + case 1: dprintk("setting GPIO%d to static %d\n", bit_no, value); + /* turn sync mode off if necessary */ + if (index & 0x00c00000) + saa_andorb(SAA7134_VIDEO_PORT_CTRL6, 0x0f, 0x00); + if (value) + bitval = index; + else + bitval = 0; + saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, index); + saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, index, bitval); + break; + case 3: /* tristate */ + dprintk("setting GPIO%d to tristate\n", bit_no); + saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, 0); + break; + } +} + +/* ------------------------------------------------------------------ */ + + +/* ----------------------------------------------------------- */ +/* delayed request_module */ + +#if defined(CONFIG_MODULES) && defined(MODULE) + +static void request_module_async(struct work_struct *work){ + struct saa7134_dev* dev = container_of(work, struct saa7134_dev, request_module_wk); + if (card_is_empress(dev)) + request_module("saa7134-empress"); + if (card_is_dvb(dev)) + request_module("saa7134-dvb"); + if (alsa) { + if (dev->pci->device != PCI_DEVICE_ID_PHILIPS_SAA7130) + request_module("saa7134-alsa"); + } +} + +static void request_submodules(struct saa7134_dev *dev) +{ + INIT_WORK(&dev->request_module_wk, request_module_async); + schedule_work(&dev->request_module_wk); +} + +static void flush_request_submodules(struct saa7134_dev *dev) +{ + flush_work(&dev->request_module_wk); +} + +#else +#define request_submodules(dev) +#define flush_request_submodules(dev) +#endif /* CONFIG_MODULES */ + +/* ------------------------------------------------------------------ */ + +/* nr of (saa7134-)pages for the given buffer size */ +static int saa7134_buffer_pages(int size) +{ + size = PAGE_ALIGN(size); + size += PAGE_SIZE; /* for non-page-aligned buffers */ + size /= 4096; + return size; +} + +/* calc max # of buffers from size (must not exceed the 4MB virtual + * address space per DMA channel) */ +int saa7134_buffer_count(unsigned int size, unsigned int count) +{ + unsigned int maxcount; + + maxcount = 1024 / saa7134_buffer_pages(size); + if (count > maxcount) + count = maxcount; + return count; +} + +int saa7134_buffer_startpage(struct saa7134_buf *buf) +{ + return saa7134_buffer_pages(buf->vb.bsize) * buf->vb.i; +} + +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 += dma->sglist[0].offset; + return base; +} + +/* ------------------------------------------------------------------ */ + +int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt) +{ + __le32 *cpu; + dma_addr_t dma_addr = 0; + + cpu = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr); + if (NULL == cpu) + return -ENOMEM; + pt->size = SAA7134_PGTABLE_SIZE; + pt->cpu = cpu; + pt->dma = dma_addr; + return 0; +} + +int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt, + struct scatterlist *list, unsigned int length, + unsigned int startpage) +{ + __le32 *ptr; + unsigned int i,p; + + BUG_ON(NULL == pt || NULL == pt->cpu); + + ptr = pt->cpu + startpage; + for (i = 0; i < length; i++, list++) + for (p = 0; p * 4096 < list->length; p++, ptr++) + *ptr = cpu_to_le32(sg_dma_address(list) - list->offset); + return 0; +} + +void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt) +{ + if (NULL == pt->cpu) + return; + pci_free_consistent(pci, pt->size, pt->cpu, pt->dma); + pt->cpu = NULL; +} + +/* ------------------------------------------------------------------ */ + +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(q, &buf->vb, 0, 0); + videobuf_dma_unmap(q->dev, dma); + videobuf_dma_free(dma); + buf->vb.state = VIDEOBUF_NEEDS_INIT; +} + +/* ------------------------------------------------------------------ */ + +int saa7134_buffer_queue(struct saa7134_dev *dev, + struct saa7134_dmaqueue *q, + struct saa7134_buf *buf) +{ + struct saa7134_buf *next = NULL; + + assert_spin_locked(&dev->slock); + dprintk("buffer_queue %p\n",buf); + if (NULL == q->curr) { + if (!q->need_two) { + q->curr = buf; + buf->activate(dev,buf,NULL); + } else if (list_empty(&q->queue)) { + list_add_tail(&buf->vb.queue,&q->queue); + buf->vb.state = VIDEOBUF_QUEUED; + } else { + next = list_entry(q->queue.next,struct saa7134_buf, + vb.queue); + q->curr = buf; + buf->activate(dev,buf,next); + } + } else { + list_add_tail(&buf->vb.queue,&q->queue); + buf->vb.state = VIDEOBUF_QUEUED; + } + return 0; +} + +void saa7134_buffer_finish(struct saa7134_dev *dev, + struct saa7134_dmaqueue *q, + unsigned int state) +{ + assert_spin_locked(&dev->slock); + dprintk("buffer_finish %p\n",q->curr); + + /* finish current buffer */ + q->curr->vb.state = state; + v4l2_get_timestamp(&q->curr->vb.ts); + wake_up(&q->curr->vb.done); + q->curr = NULL; +} + +void saa7134_buffer_next(struct saa7134_dev *dev, + struct saa7134_dmaqueue *q) +{ + struct saa7134_buf *buf,*next = NULL; + + assert_spin_locked(&dev->slock); + BUG_ON(NULL != q->curr); + + if (!list_empty(&q->queue)) { + /* activate next one from queue */ + buf = list_entry(q->queue.next,struct saa7134_buf,vb.queue); + dprintk("buffer_next %p [prev=%p/next=%p]\n", + buf,q->queue.prev,q->queue.next); + list_del(&buf->vb.queue); + if (!list_empty(&q->queue)) + next = list_entry(q->queue.next,struct saa7134_buf, + vb.queue); + q->curr = buf; + buf->activate(dev,buf,next); + dprintk("buffer_next #2 prev=%p/next=%p\n", + q->queue.prev,q->queue.next); + } else { + /* nothing to do -- just stop DMA */ + dprintk("buffer_next %p\n",NULL); + saa7134_set_dmabits(dev); + del_timer(&q->timeout); + + if (card_has_mpeg(dev)) + if (dev->ts_started) + saa7134_ts_stop(dev); + } +} + +void saa7134_buffer_timeout(unsigned long data) +{ + struct saa7134_dmaqueue *q = (struct saa7134_dmaqueue*)data; + struct saa7134_dev *dev = q->dev; + unsigned long flags; + + spin_lock_irqsave(&dev->slock,flags); + + /* try to reset the hardware (SWRST) */ + saa_writeb(SAA7134_REGION_ENABLE, 0x00); + saa_writeb(SAA7134_REGION_ENABLE, 0x80); + saa_writeb(SAA7134_REGION_ENABLE, 0x00); + + /* flag current buffer as failed, + try to start over with the next one. */ + if (q->curr) { + dprintk("timeout on %p\n",q->curr); + saa7134_buffer_finish(dev,q,VIDEOBUF_ERROR); + } + saa7134_buffer_next(dev,q); + spin_unlock_irqrestore(&dev->slock,flags); +} + +/* ------------------------------------------------------------------ */ + +int saa7134_set_dmabits(struct saa7134_dev *dev) +{ + u32 split, task=0, ctrl=0, irq=0; + enum v4l2_field cap = V4L2_FIELD_ANY; + enum v4l2_field ov = V4L2_FIELD_ANY; + + assert_spin_locked(&dev->slock); + + if (dev->insuspend) + return 0; + + /* video capture -- dma 0 + video task A */ + if (dev->video_q.curr) { + task |= 0x01; + ctrl |= SAA7134_MAIN_CTRL_TE0; + irq |= SAA7134_IRQ1_INTE_RA0_1 | + SAA7134_IRQ1_INTE_RA0_0; + cap = dev->video_q.curr->vb.field; + } + + /* video capture -- dma 1+2 (planar modes) */ + if (dev->video_q.curr && + dev->video_q.curr->fmt->planar) { + ctrl |= SAA7134_MAIN_CTRL_TE4 | + SAA7134_MAIN_CTRL_TE5; + } + + /* screen overlay -- dma 0 + video task B */ + if (dev->ovenable) { + task |= 0x10; + ctrl |= SAA7134_MAIN_CTRL_TE1; + ov = dev->ovfield; + } + + /* vbi capture -- dma 0 + vbi task A+B */ + if (dev->vbi_q.curr) { + task |= 0x22; + ctrl |= SAA7134_MAIN_CTRL_TE2 | + SAA7134_MAIN_CTRL_TE3; + irq |= SAA7134_IRQ1_INTE_RA0_7 | + SAA7134_IRQ1_INTE_RA0_6 | + SAA7134_IRQ1_INTE_RA0_5 | + SAA7134_IRQ1_INTE_RA0_4; + } + + /* audio capture -- dma 3 */ + if (dev->dmasound.dma_running) { + ctrl |= SAA7134_MAIN_CTRL_TE6; + irq |= SAA7134_IRQ1_INTE_RA3_1 | + SAA7134_IRQ1_INTE_RA3_0; + } + + /* TS capture -- dma 5 */ + if (dev->ts_q.curr) { + ctrl |= SAA7134_MAIN_CTRL_TE5; + irq |= SAA7134_IRQ1_INTE_RA2_1 | + SAA7134_IRQ1_INTE_RA2_0; + } + + /* set task conditions + field handling */ + if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) { + /* default config -- use full frames */ + saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d); + saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d); + saa_writeb(SAA7134_FIELD_HANDLING(TASK_A), 0x02); + saa_writeb(SAA7134_FIELD_HANDLING(TASK_B), 0x02); + split = 0; + } else { + /* split fields between tasks */ + if (V4L2_FIELD_TOP == cap) { + /* odd A, even B, repeat */ + saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d); + saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e); + } else { + /* odd B, even A, repeat */ + saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e); + saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d); + } + saa_writeb(SAA7134_FIELD_HANDLING(TASK_A), 0x01); + saa_writeb(SAA7134_FIELD_HANDLING(TASK_B), 0x01); + split = 1; + } + + /* irqs */ + saa_writeb(SAA7134_REGION_ENABLE, task); + saa_writel(SAA7134_IRQ1, irq); + saa_andorl(SAA7134_MAIN_CTRL, + SAA7134_MAIN_CTRL_TE0 | + SAA7134_MAIN_CTRL_TE1 | + SAA7134_MAIN_CTRL_TE2 | + SAA7134_MAIN_CTRL_TE3 | + SAA7134_MAIN_CTRL_TE4 | + SAA7134_MAIN_CTRL_TE5 | + SAA7134_MAIN_CTRL_TE6, + ctrl); + dprintk("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n", + task, ctrl, irq, split ? "no" : "yes"); + + return 0; +} + +/* ------------------------------------------------------------------ */ +/* IRQ handler + helpers */ + +static char *irqbits[] = { + "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3", + "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC", + "TRIG_ERR", "CONF_ERR", "LOAD_ERR", + "GPIO16", "GPIO18", "GPIO22", "GPIO23" +}; +#define IRQBITS ARRAY_SIZE(irqbits) + +static void print_irqstatus(struct saa7134_dev *dev, int loop, + unsigned long report, unsigned long status) +{ + unsigned int i; + + printk(KERN_DEBUG "%s/irq[%d,%ld]: r=0x%lx s=0x%02lx", + dev->name,loop,jiffies,report,status); + for (i = 0; i < IRQBITS; i++) { + if (!(report & (1 << i))) + continue; + printk(" %s",irqbits[i]); + } + if (report & SAA7134_IRQ_REPORT_DONE_RA0) { + printk(" | RA0=%s,%s,%s,%ld", + (status & 0x40) ? "vbi" : "video", + (status & 0x20) ? "b" : "a", + (status & 0x10) ? "odd" : "even", + (status & 0x0f)); + } + printk("\n"); +} + +static irqreturn_t saa7134_irq(int irq, void *dev_id) +{ + struct saa7134_dev *dev = (struct saa7134_dev*) dev_id; + unsigned long report,status; + int loop, handled = 0; + + if (dev->insuspend) + goto out; + + for (loop = 0; loop < 10; loop++) { + report = saa_readl(SAA7134_IRQ_REPORT); + status = saa_readl(SAA7134_IRQ_STATUS); + + /* If dmasound support is active and we get a sound report, + * mask out the report and let the saa7134-alsa module deal + * with it */ + if ((report & SAA7134_IRQ_REPORT_DONE_RA3) && + (dev->dmasound.priv_data != NULL) ) + { + if (irq_debug > 1) + printk(KERN_DEBUG "%s/irq: preserving DMA sound interrupt\n", + dev->name); + report &= ~SAA7134_IRQ_REPORT_DONE_RA3; + } + + if (0 == report) { + if (irq_debug > 1) + printk(KERN_DEBUG "%s/irq: no (more) work\n", + dev->name); + goto out; + } + + handled = 1; + saa_writel(SAA7134_IRQ_REPORT,report); + if (irq_debug) + print_irqstatus(dev,loop,report,status); + + + 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) + saa7134_irq_video_done(dev,status); + + if ((report & SAA7134_IRQ_REPORT_DONE_RA0) && + (status & 0x40) == 0x40) + saa7134_irq_vbi_done(dev,status); + + if ((report & SAA7134_IRQ_REPORT_DONE_RA2) && + card_has_mpeg(dev)) + saa7134_irq_ts_done(dev,status); + + if (report & SAA7134_IRQ_REPORT_GPIO16) { + switch (dev->has_remote) { + case SAA7134_REMOTE_GPIO: + if (!dev->remote) + break; + if (dev->remote->mask_keydown & 0x10000) { + saa7134_input_irq(dev); + } + break; + + case SAA7134_REMOTE_I2C: + break; /* FIXME: invoke I2C get_key() */ + + default: /* GPIO16 not used by IR remote */ + break; + } + } + + if (report & SAA7134_IRQ_REPORT_GPIO18) { + switch (dev->has_remote) { + case SAA7134_REMOTE_GPIO: + if (!dev->remote) + break; + if ((dev->remote->mask_keydown & 0x40000) || + (dev->remote->mask_keyup & 0x40000)) { + saa7134_input_irq(dev); + } + break; + + case SAA7134_REMOTE_I2C: + break; /* FIXME: invoke I2C get_key() */ + + default: /* GPIO18 not used by IR remote */ + break; + } + } + } + + if (10 == loop) { + print_irqstatus(dev,loop,report,status); + if (report & SAA7134_IRQ_REPORT_PE) { + /* disable all parity error */ + printk(KERN_WARNING "%s/irq: looping -- " + "clearing PE (parity error!) enable bit\n",dev->name); + saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE); + } else if (report & SAA7134_IRQ_REPORT_GPIO16) { + /* disable gpio16 IRQ */ + printk(KERN_WARNING "%s/irq: looping -- " + "clearing GPIO16 enable bit\n",dev->name); + saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_P); + saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_N); + } else if (report & SAA7134_IRQ_REPORT_GPIO18) { + /* disable gpio18 IRQs */ + printk(KERN_WARNING "%s/irq: looping -- " + "clearing GPIO18 enable bit\n",dev->name); + saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P); + saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_N); + } else { + /* disable all irqs */ + printk(KERN_WARNING "%s/irq: looping -- " + "clearing all enable bits\n",dev->name); + saa_writel(SAA7134_IRQ1,0); + saa_writel(SAA7134_IRQ2,0); + } + } + + out: + return IRQ_RETVAL(handled); +} + +/* ------------------------------------------------------------------ */ + +/* 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"); + + saa_writel(SAA7134_IRQ1, 0); + saa_writel(SAA7134_IRQ2, 0); + + /* Clear any stale IRQ reports */ + saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT)); + + mutex_init(&dev->lock); + spin_lock_init(&dev->slock); + + saa7134_track_gpio(dev,"pre-init"); + saa7134_video_init1(dev); + saa7134_vbi_init1(dev); + if (card_has_mpeg(dev)) + saa7134_ts_init1(dev); + saa7134_input_init1(dev); + + saa7134_hw_enable1(dev); + + return 0; +} + +/* late init (with i2c + irq) */ +static int saa7134_hw_enable2(struct saa7134_dev *dev) +{ + + unsigned int irq2_mask; + + /* enable IRQ's */ + irq2_mask = + SAA7134_IRQ2_INTE_DEC3 | + SAA7134_IRQ2_INTE_DEC2 | + SAA7134_IRQ2_INTE_DEC1 | + SAA7134_IRQ2_INTE_DEC0 | + SAA7134_IRQ2_INTE_PE | + SAA7134_IRQ2_INTE_AR; + + if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) { + if (dev->remote->mask_keydown & 0x10000) + irq2_mask |= SAA7134_IRQ2_INTE_GPIO16_N; + else { /* Allow enabling both IRQ edge triggers */ + if (dev->remote->mask_keydown & 0x40000) + irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P; + if (dev->remote->mask_keyup & 0x40000) + irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N; + } + } + + if (dev->has_remote == SAA7134_REMOTE_I2C) { + request_module("ir-kbd-i2c"); + } + + saa_writel(SAA7134_IRQ1, 0); + saa_writel(SAA7134_IRQ2, irq2_mask); + + 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) +{ + dprintk("hwfini\n"); + + if (card_has_mpeg(dev)) + saa7134_ts_fini(dev); + saa7134_input_fini(dev); + saa7134_vbi_fini(dev); + saa7134_tvaudio_fini(dev); + return 0; +} + +static void must_configure_manually(int has_eeprom) +{ + unsigned int i,p; + + if (!has_eeprom) + printk(KERN_WARNING + "saa7134: <rant>\n" + "saa7134: Congratulations! Your TV card vendor saved a few\n" + "saa7134: cents for a eeprom, thus your pci board has no\n" + "saa7134: subsystem ID and I can't identify it automatically\n" + "saa7134: </rant>\n" + "saa7134: I feel better now. Ok, here are the good news:\n" + "saa7134: You can use the card=<nr> insmod option to specify\n" + "saa7134: which board do you have. The list:\n"); + else + printk(KERN_WARNING + "saa7134: Board is currently unknown. You might try to use the card=<nr>\n" + "saa7134: insmod option to specify which board do you have, but this is\n" + "saa7134: somewhat risky, as might damage your card. It is better to ask\n" + "saa7134: for support at linux-media@vger.kernel.org.\n" + "saa7134: The supported cards are:\n"); + + for (i = 0; i < saa7134_bcount; i++) { + printk(KERN_WARNING "saa7134: card=%d -> %-40.40s", + i,saa7134_boards[i].name); + for (p = 0; saa7134_pci_tbl[p].driver_data; p++) { + if (saa7134_pci_tbl[p].driver_data != i) + continue; + printk(" %04x:%04x", + saa7134_pci_tbl[p].subvendor, + saa7134_pci_tbl[p].subdevice); + } + printk("\n"); + } +} + +static struct video_device *vdev_init(struct saa7134_dev *dev, + struct video_device *template, + char *type) +{ + struct video_device *vfd; + + vfd = video_device_alloc(); + if (NULL == vfd) + return NULL; + *vfd = *template; + vfd->v4l2_dev = &dev->v4l2_dev; + vfd->release = video_device_release; + vfd->debug = video_debug; + snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", + dev->name, type, saa7134_boards[dev->board].name); + set_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags); + video_set_drvdata(vfd, dev); + return vfd; +} + +static void saa7134_unregister_video(struct saa7134_dev *dev) +{ + if (dev->video_dev) { + if (video_is_registered(dev->video_dev)) + video_unregister_device(dev->video_dev); + else + video_device_release(dev->video_dev); + dev->video_dev = NULL; + } + if (dev->vbi_dev) { + if (video_is_registered(dev->vbi_dev)) + video_unregister_device(dev->vbi_dev); + else + video_device_release(dev->vbi_dev); + dev->vbi_dev = NULL; + } + if (dev->radio_dev) { + if (video_is_registered(dev->radio_dev)) + video_unregister_device(dev->radio_dev); + else + video_device_release(dev->radio_dev); + dev->radio_dev = NULL; + } +} + +static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops, + struct saa7134_dev *dev) +{ + int err; + + if (NULL != dev->mops) + return; + if (saa7134_boards[dev->board].mpeg != ops->type) + return; + err = ops->init(dev); + if (0 != err) + return; + dev->mops = ops; +} + +static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops, + struct saa7134_dev *dev) +{ + if (NULL == dev->mops) + return; + if (dev->mops != ops) + return; + dev->mops->fini(dev); + dev->mops = NULL; +} + +static int saa7134_initdev(struct pci_dev *pci_dev, + const struct pci_device_id *pci_id) +{ + struct saa7134_dev *dev; + struct saa7134_mpeg_ops *mops; + int err; + + if (saa7134_devcount == SAA7134_MAXBOARDS) + return -ENOMEM; + + dev = kzalloc(sizeof(*dev),GFP_KERNEL); + if (NULL == dev) + return -ENOMEM; + + err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev); + if (err) + goto fail0; + + /* pci init */ + dev->pci = pci_dev; + if (pci_enable_device(pci_dev)) { + err = -EIO; + goto fail1; + } + + dev->nr = saa7134_devcount; + sprintf(dev->name,"saa%x[%d]",pci_dev->device,dev->nr); + + /* pci quirks */ + if (pci_pci_problems) { + if (pci_pci_problems & PCIPCI_TRITON) + printk(KERN_INFO "%s: quirk: PCIPCI_TRITON\n", dev->name); + if (pci_pci_problems & PCIPCI_NATOMA) + printk(KERN_INFO "%s: quirk: PCIPCI_NATOMA\n", dev->name); + if (pci_pci_problems & PCIPCI_VIAETBF) + printk(KERN_INFO "%s: quirk: PCIPCI_VIAETBF\n", dev->name); + if (pci_pci_problems & PCIPCI_VSFX) + printk(KERN_INFO "%s: quirk: PCIPCI_VSFX\n",dev->name); +#ifdef PCIPCI_ALIMAGIK + if (pci_pci_problems & PCIPCI_ALIMAGIK) { + printk(KERN_INFO "%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n", + dev->name); + latency = 0x0A; + } +#endif + if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) { + printk(KERN_INFO "%s: quirk: this driver and your " + "chipset may not work together" + " in overlay mode.\n",dev->name); + if (!saa7134_no_overlay) { + printk(KERN_INFO "%s: quirk: overlay " + "mode will be disabled.\n", + dev->name); + saa7134_no_overlay = 1; + } else { + printk(KERN_INFO "%s: quirk: overlay " + "mode will be forced. Use this" + " option at your own risk.\n", + dev->name); + } + } + } + if (UNSET != latency) { + printk(KERN_INFO "%s: setting pci latency timer to %d\n", + dev->name,latency); + pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency); + } + + /* print pci info */ + dev->pci_rev = pci_dev->revision; + pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &dev->pci_lat); + printk(KERN_INFO "%s: found at %s, rev: %d, irq: %d, " + "latency: %d, mmio: 0x%llx\n", dev->name, + pci_name(pci_dev), dev->pci_rev, pci_dev->irq, + dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0)); + pci_set_master(pci_dev); + if (!pci_dma_supported(pci_dev, DMA_BIT_MASK(32))) { + printk("%s: Oops: no 32bit PCI DMA ???\n",dev->name); + err = -EIO; + goto fail1; + } + + /* board config */ + dev->board = pci_id->driver_data; + if ((unsigned)card[dev->nr] < saa7134_bcount) + dev->board = card[dev->nr]; + if (SAA7134_BOARD_UNKNOWN == dev->board) + must_configure_manually(0); + else if (SAA7134_BOARD_NOAUTO == dev->board) { + must_configure_manually(1); + dev->board = SAA7134_BOARD_UNKNOWN; + } + dev->autodetected = card[dev->nr] != dev->board; + dev->tuner_type = saa7134_boards[dev->board].tuner_type; + dev->tuner_addr = saa7134_boards[dev->board].tuner_addr; + dev->radio_type = saa7134_boards[dev->board].radio_type; + dev->radio_addr = saa7134_boards[dev->board].radio_addr; + dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf; + if (UNSET != tuner[dev->nr]) + dev->tuner_type = tuner[dev->nr]; + printk(KERN_INFO "%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n", + dev->name,pci_dev->subsystem_vendor, + pci_dev->subsystem_device,saa7134_boards[dev->board].name, + dev->board, dev->autodetected ? + "autodetected" : "insmod option"); + + /* get mmio */ + if (!request_mem_region(pci_resource_start(pci_dev,0), + pci_resource_len(pci_dev,0), + dev->name)) { + err = -EBUSY; + printk(KERN_ERR "%s: can't get MMIO memory @ 0x%llx\n", + dev->name,(unsigned long long)pci_resource_start(pci_dev,0)); + goto fail1; + } + dev->lmmio = ioremap(pci_resource_start(pci_dev, 0), + pci_resource_len(pci_dev, 0)); + dev->bmmio = (__u8 __iomem *)dev->lmmio; + if (NULL == dev->lmmio) { + err = -EIO; + printk(KERN_ERR "%s: can't ioremap() MMIO memory\n", + dev->name); + goto fail2; + } + + /* initialize hardware #1 */ + saa7134_board_init1(dev); + saa7134_hwinit1(dev); + + /* get irq */ + err = request_irq(pci_dev->irq, saa7134_irq, + IRQF_SHARED | IRQF_DISABLED, dev->name, dev); + if (err < 0) { + printk(KERN_ERR "%s: can't get IRQ %d\n", + dev->name,pci_dev->irq); + goto fail3; + } + + /* wait a bit, register i2c bus */ + msleep(100); + saa7134_i2c_register(dev); + saa7134_board_init2(dev); + + saa7134_hwinit2(dev); + + /* load i2c helpers */ + if (card_is_empress(dev)) { + struct v4l2_subdev *sd = + v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap, + "saa6752hs", + saa7134_boards[dev->board].empress_addr, NULL); + + if (sd) + sd->grp_id = GRP_EMPRESS; + } + + if (saa7134_boards[dev->board].rds_addr) { + struct v4l2_subdev *sd; + + sd = v4l2_i2c_new_subdev(&dev->v4l2_dev, + &dev->i2c_adap, "saa6588", + 0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr)); + if (sd) { + printk(KERN_INFO "%s: found RDS decoder\n", dev->name); + dev->has_rds = 1; + } + } + + mutex_lock(&saa7134_devlist_lock); + list_for_each_entry(mops, &mops_list, next) + mpeg_ops_attach(mops, dev); + list_add_tail(&dev->devlist, &saa7134_devlist); + mutex_unlock(&saa7134_devlist_lock); + + /* check for signal */ + saa7134_irq_video_signalchange(dev); + + if (TUNER_ABSENT != dev->tuner_type) + saa_call_all(dev, core, s_power, 0); + + /* register v4l devices */ + if (saa7134_no_overlay > 0) + printk(KERN_INFO "%s: Overlay support disabled.\n", dev->name); + + dev->video_dev = vdev_init(dev,&saa7134_video_template,"video"); + err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER, + video_nr[dev->nr]); + if (err < 0) { + printk(KERN_INFO "%s: can't register video device\n", + dev->name); + goto fail4; + } + printk(KERN_INFO "%s: registered device %s [v4l2]\n", + dev->name, video_device_node_name(dev->video_dev)); + + dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi"); + + err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI, + vbi_nr[dev->nr]); + if (err < 0) + goto fail4; + printk(KERN_INFO "%s: registered device %s\n", + dev->name, video_device_node_name(dev->vbi_dev)); + + if (card_has_radio(dev)) { + dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio"); + err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO, + radio_nr[dev->nr]); + if (err < 0) + goto fail4; + printk(KERN_INFO "%s: registered device %s\n", + dev->name, video_device_node_name(dev->radio_dev)); + } + + /* everything worked */ + saa7134_devcount++; + + if (saa7134_dmasound_init && !dev->dmasound.priv_data) + saa7134_dmasound_init(dev); + + request_submodules(dev); + return 0; + + fail4: + saa7134_unregister_video(dev); + saa7134_i2c_unregister(dev); + free_irq(pci_dev->irq, dev); + fail3: + saa7134_hwfini(dev); + iounmap(dev->lmmio); + fail2: + release_mem_region(pci_resource_start(pci_dev,0), + pci_resource_len(pci_dev,0)); + fail1: + v4l2_device_unregister(&dev->v4l2_dev); + fail0: + kfree(dev); + return err; +} + +static void saa7134_finidev(struct pci_dev *pci_dev) +{ + struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev); + struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev); + struct saa7134_mpeg_ops *mops; + + flush_request_submodules(dev); + + /* Release DMA sound modules if present */ + if (saa7134_dmasound_exit && dev->dmasound.priv_data) { + saa7134_dmasound_exit(dev); + } + + /* debugging ... */ + if (irq_debug) { + u32 report = saa_readl(SAA7134_IRQ_REPORT); + u32 status = saa_readl(SAA7134_IRQ_STATUS); + print_irqstatus(dev,42,report,status); + } + + /* disable peripheral devices */ + saa_writeb(SAA7134_SPECIAL_MODE,0); + + /* shutdown hardware */ + saa_writel(SAA7134_IRQ1,0); + saa_writel(SAA7134_IRQ2,0); + saa_writel(SAA7134_MAIN_CTRL,0); + + /* shutdown subsystems */ + saa7134_hwfini(dev); + + /* unregister */ + mutex_lock(&saa7134_devlist_lock); + list_del(&dev->devlist); + list_for_each_entry(mops, &mops_list, next) + mpeg_ops_detach(mops, dev); + mutex_unlock(&saa7134_devlist_lock); + saa7134_devcount--; + + saa7134_i2c_unregister(dev); + saa7134_unregister_video(dev); + + + /* the DMA sound modules should be unloaded before reaching + this, but just in case they are still present... */ + if (dev->dmasound.priv_data != NULL) { + free_irq(pci_dev->irq, &dev->dmasound); + dev->dmasound.priv_data = NULL; + } + + + /* release resources */ + free_irq(pci_dev->irq, dev); + iounmap(dev->lmmio); + release_mem_region(pci_resource_start(pci_dev,0), + pci_resource_len(pci_dev,0)); + + + v4l2_device_unregister(&dev->v4l2_dev); + + /* free memory */ + kfree(dev); +} + +#ifdef CONFIG_PM + +/* resends a current buffer in queue after resume */ +static 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; +} + +static int saa7134_suspend(struct pci_dev *pci_dev , pm_message_t state) +{ + struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev); + struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_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); + + dev->insuspend = 1; + synchronize_irq(pci_dev->irq); + + /* ACK interrupts once more, just in case, + since the IRQ handler won't ack them anymore*/ + + saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT)); + + /* Disable timeout timers - if we have active buffers, we will + fill them on resume*/ + + del_timer(&dev->video_q.timeout); + del_timer(&dev->vbi_q.timeout); + del_timer(&dev->ts_q.timeout); + + if (dev->remote) + saa7134_ir_stop(dev); + + pci_save_state(pci_dev); + pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state)); + + return 0; +} + +static int saa7134_resume(struct pci_dev *pci_dev) +{ + struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev); + struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev); + unsigned long flags; + + pci_set_power_state(pci_dev, PCI_D0); + pci_restore_state(pci_dev); + + /* Do things that are done in saa7134_initdev , + except of initializing memory structures.*/ + + saa7134_board_init1(dev); + + /* saa7134_hwinit1 */ + if (saa7134_boards[dev->board].video_out) + saa7134_videoport_init(dev); + if (card_has_mpeg(dev)) + saa7134_ts_init_hw(dev); + if (dev->remote) + saa7134_ir_start(dev); + saa7134_hw_enable1(dev); + + msleep(100); + + saa7134_board_init2(dev); + + /*saa7134_hwinit2*/ + saa7134_set_tvnorm_hw(dev); + saa7134_tvaudio_setmute(dev); + saa7134_tvaudio_setvolume(dev, dev->ctl_volume); + saa7134_tvaudio_init(dev); + saa7134_enable_i2s(dev); + saa7134_hw_enable2(dev); + + saa7134_irq_video_signalchange(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); + + /* FIXME: Disable DMA audio sound - temporary till proper support + is implemented*/ + + dev->dmasound.dma_running = 0; + + /* start DMA now*/ + dev->insuspend = 0; + smp_wmb(); + saa7134_set_dmabits(dev); + spin_unlock_irqrestore(&dev->slock, flags); + + return 0; +} +#endif + +/* ----------------------------------------------------------- */ + +int saa7134_ts_register(struct saa7134_mpeg_ops *ops) +{ + struct saa7134_dev *dev; + + mutex_lock(&saa7134_devlist_lock); + list_for_each_entry(dev, &saa7134_devlist, devlist) + mpeg_ops_attach(ops, dev); + list_add_tail(&ops->next,&mops_list); + mutex_unlock(&saa7134_devlist_lock); + return 0; +} + +void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops) +{ + struct saa7134_dev *dev; + + mutex_lock(&saa7134_devlist_lock); + list_del(&ops->next); + list_for_each_entry(dev, &saa7134_devlist, devlist) + mpeg_ops_detach(ops, dev); + mutex_unlock(&saa7134_devlist_lock); +} + +EXPORT_SYMBOL(saa7134_ts_register); +EXPORT_SYMBOL(saa7134_ts_unregister); + +/* ----------------------------------------------------------- */ + +static struct pci_driver saa7134_pci_driver = { + .name = "saa7134", + .id_table = saa7134_pci_tbl, + .probe = saa7134_initdev, + .remove = saa7134_finidev, +#ifdef CONFIG_PM + .suspend = saa7134_suspend, + .resume = saa7134_resume +#endif +}; + +static int __init saa7134_init(void) +{ + INIT_LIST_HEAD(&saa7134_devlist); + printk(KERN_INFO "saa7130/34: v4l2 driver version %s loaded\n", + SAA7134_VERSION); + return pci_register_driver(&saa7134_pci_driver); +} + +static void __exit saa7134_fini(void) +{ + pci_unregister_driver(&saa7134_pci_driver); +} + +module_init(saa7134_init); +module_exit(saa7134_fini); + +/* ----------------------------------------------------------- */ + +EXPORT_SYMBOL(saa7134_set_gpio); +EXPORT_SYMBOL(saa7134_boards); + +/* ----------------- for the DMA sound modules --------------- */ + +EXPORT_SYMBOL(saa7134_dmasound_init); +EXPORT_SYMBOL(saa7134_dmasound_exit); +EXPORT_SYMBOL(saa7134_pgtable_free); +EXPORT_SYMBOL(saa7134_pgtable_build); +EXPORT_SYMBOL(saa7134_pgtable_alloc); +EXPORT_SYMBOL(saa7134_set_dmabits); + +/* ----------------------------------------------------------- */ +/* + * Local variables: + * c-basic-offset: 8 + * End: + */ |