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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-07 17:49:05 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-07 17:49:05 +0900
commit0b8e74c6f44094189dbe78baf4101acc7570c6af (patch)
tree6440561d09fb71ba5928664604ec92f29940be6b /drivers/media/pci/cx88/cx88-mpeg.c
parent7f60ba388f5b9dd8b0da463b394412dace3ab814 (diff)
parentbd0d10498826ed150da5e4c45baf8b9c7088fb71 (diff)
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab: "The first part of the media updates for Kernel 3.7. This series contain: - A major tree renaming patch series: now, drivers are organized internally by their used bus, instead of by V4L2 and/or DVB API, providing a cleaner driver location for hybrid drivers that implement both APIs, and allowing to cleanup the Kconfig items and make them more intuitive for the end user; - Media Kernel developers are typically very lazy with their duties of keeping the MAINTAINERS entries for their drivers updated. As now the tree is more organized, we're doing an effort to add/update those entries for the drivers that aren't currently orphan; - Several DVB USB drivers got moved to a new DVB USB v2 core; the new core fixes several bugs (as the existing one that got bitroted). Now, suspend/resume finally started to work fine (at least with some devices - we should expect more work with regards to it); - added multistream support for DVB-T2, and unified the API for DVB-S2 and ISDB-S. Backward binary support is preserved; - as usual, a few new drivers, some V4L2 core improvements and lots of drivers improvements and fixes. There are some points to notice on this series: 1) you should expect a trivial merge conflict on your tree, with the removal of Documentation/feature-removal-schedule.txt: this series would be adding two additional entries there. I opted to not rebase it due to this recent change; 2) With regards to the PCTV 520e udev-related breakage, I opted to fix it in a way that the patches can be backported to 3.5 even without your firmware fix patch. This way, Greg doesn't need to rush backporting your patch (as there are still the firmware cache and firmware path customization issues to be addressed there). I'll send later a patch (likely after the end of the merge window) reverting the rest of the DRX-K async firmware request, fully restoring its original behaviour to allow media drivers to initialize everything serialized as before for 3.7 and upper. 3) I'm planning to work on this weekend to test the DMABUF patches for V4L2. The patches are on my queue for several Kernel cycles, but, up to now, there is/was no way to test the series locally. I have some concerns about this particular changeset with regards to security issues, and with regards to the replacement of the old VIDIOC_OVERLAY ioctl's that is broken on modern systems, due to GPU drivers change. The Overlay API allows direct PCI2PCI transfers from a media capture card into the GPU framebuffer, but its API is crappy. Also, the only existing X11 driver that implements it requires a XV extension that is not available anymore on modern drivers. The DMABUF can do the same thing, but with it is promising to be a properly-designed API. If I can successfully test this series and be happy with it, I should be asking you to pull them next week." * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (717 commits) em28xx: regression fix: use DRX-K sync firmware requests on em28xx drxk: allow loading firmware synchrousnously em28xx: Make all em28xx extensions to be initialized asynchronously [media] tda18271: properly report read errors in tda18271_get_id [media] tda18271: delay IR & RF calibration until init() if delay_cal is set [media] MAINTAINERS: add Michael Krufky as tda827x maintainer [media] MAINTAINERS: add Michael Krufky as tda8290 maintainer [media] MAINTAINERS: add Michael Krufky as cxusb maintainer [media] MAINTAINERS: add Michael Krufky as lg2160 maintainer [media] MAINTAINERS: add Michael Krufky as lgdt3305 maintainer [media] MAINTAINERS: add Michael Krufky as mxl111sf maintainer [media] MAINTAINERS: add Michael Krufky as mxl5007t maintainer [media] MAINTAINERS: add Michael Krufky as tda18271 maintainer [media] s5p-tv: Report only multi-plane capabilities in vidioc_querycap [media] s5p-mfc: Fix misplaced return statement in s5p_mfc_suspend() [media] exynos-gsc: Add missing static storage class specifiers [media] exynos-gsc: Remove <linux/version.h> header file inclusion [media] s5p-fimc: Fix incorrect condition in fimc_lite_reqbufs() [media] s5p-tv: Fix potential NULL pointer dereference error [media] s5k6aa: Fix possible NULL pointer dereference ...
Diffstat (limited to 'drivers/media/pci/cx88/cx88-mpeg.c')
-rw-r--r--drivers/media/pci/cx88/cx88-mpeg.c929
1 files changed, 929 insertions, 0 deletions
diff --git a/drivers/media/pci/cx88/cx88-mpeg.c b/drivers/media/pci/cx88/cx88-mpeg.c
new file mode 100644
index 000000000000..c04fb618e10b
--- /dev/null
+++ b/drivers/media/pci/cx88/cx88-mpeg.c
@@ -0,0 +1,929 @@
+/*
+ *
+ * Support for the mpeg transport stream transfers
+ * PCI function #2 of the cx2388x.
+ *
+ * (c) 2004 Jelle Foks <jelle@foks.us>
+ * (c) 2004 Chris Pascoe <c.pascoe@itee.uq.edu.au>
+ * (c) 2004 Gerd Knorr <kraxel@bytesex.org>
+ *
+ * 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/module.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/interrupt.h>
+#include <asm/delay.h>
+
+#include "cx88.h"
+
+/* ------------------------------------------------------------------ */
+
+MODULE_DESCRIPTION("mpeg driver for cx2388x based TV cards");
+MODULE_AUTHOR("Jelle Foks <jelle@foks.us>");
+MODULE_AUTHOR("Chris Pascoe <c.pascoe@itee.uq.edu.au>");
+MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(CX88_VERSION);
+
+static unsigned int debug;
+module_param(debug,int,0644);
+MODULE_PARM_DESC(debug,"enable debug messages [mpeg]");
+
+#define dprintk(level,fmt, arg...) if (debug >= level) \
+ printk(KERN_DEBUG "%s/2-mpeg: " fmt, dev->core->name, ## arg)
+
+#define mpeg_dbg(level,fmt, arg...) if (debug >= level) \
+ printk(KERN_DEBUG "%s/2-mpeg: " fmt, core->name, ## arg)
+
+#if defined(CONFIG_MODULES) && defined(MODULE)
+static void request_module_async(struct work_struct *work)
+{
+ struct cx8802_dev *dev=container_of(work, struct cx8802_dev, request_module_wk);
+
+ if (dev->core->board.mpeg & CX88_MPEG_DVB)
+ request_module("cx88-dvb");
+ if (dev->core->board.mpeg & CX88_MPEG_BLACKBIRD)
+ request_module("cx88-blackbird");
+}
+
+static void request_modules(struct cx8802_dev *dev)
+{
+ INIT_WORK(&dev->request_module_wk, request_module_async);
+ schedule_work(&dev->request_module_wk);
+}
+
+static void flush_request_modules(struct cx8802_dev *dev)
+{
+ flush_work(&dev->request_module_wk);
+}
+#else
+#define request_modules(dev)
+#define flush_request_modules(dev)
+#endif /* CONFIG_MODULES */
+
+
+static LIST_HEAD(cx8802_devlist);
+static DEFINE_MUTEX(cx8802_mutex);
+/* ------------------------------------------------------------------ */
+
+static int cx8802_start_dma(struct cx8802_dev *dev,
+ struct cx88_dmaqueue *q,
+ struct cx88_buffer *buf)
+{
+ struct cx88_core *core = dev->core;
+
+ dprintk(1, "cx8802_start_dma w: %d, h: %d, f: %d\n",
+ buf->vb.width, buf->vb.height, buf->vb.field);
+
+ /* setup fifo + format */
+ cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH28],
+ dev->ts_packet_size, buf->risc.dma);
+
+ /* write TS length to chip */
+ cx_write(MO_TS_LNGTH, buf->vb.width);
+
+ /* FIXME: this needs a review.
+ * also: move to cx88-blackbird + cx88-dvb source files? */
+
+ dprintk( 1, "core->active_type_id = 0x%08x\n", core->active_type_id);
+
+ if ( (core->active_type_id == CX88_MPEG_DVB) &&
+ (core->board.mpeg & CX88_MPEG_DVB) ) {
+
+ dprintk( 1, "cx8802_start_dma doing .dvb\n");
+ /* negedge driven & software reset */
+ cx_write(TS_GEN_CNTRL, 0x0040 | dev->ts_gen_cntrl);
+ udelay(100);
+ cx_write(MO_PINMUX_IO, 0x00);
+ cx_write(TS_HW_SOP_CNTRL, 0x47<<16|188<<4|0x01);
+ switch (core->boardnr) {
+ case CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_Q:
+ case CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_T:
+ case CX88_BOARD_DVICO_FUSIONHDTV_5_GOLD:
+ case CX88_BOARD_PCHDTV_HD5500:
+ cx_write(TS_SOP_STAT, 1<<13);
+ break;
+ case CX88_BOARD_SAMSUNG_SMT_7020:
+ cx_write(TS_SOP_STAT, 0x00);
+ break;
+ case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
+ case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
+ cx_write(MO_PINMUX_IO, 0x88); /* Enable MPEG parallel IO and video signal pins */
+ udelay(100);
+ break;
+ case CX88_BOARD_HAUPPAUGE_HVR1300:
+ /* Enable MPEG parallel IO and video signal pins */
+ cx_write(MO_PINMUX_IO, 0x88);
+ cx_write(TS_SOP_STAT, 0);
+ cx_write(TS_VALERR_CNTRL, 0);
+ break;
+ case CX88_BOARD_PINNACLE_PCTV_HD_800i:
+ /* Enable MPEG parallel IO and video signal pins */
+ cx_write(MO_PINMUX_IO, 0x88);
+ cx_write(TS_HW_SOP_CNTRL, (0x47 << 16) | (188 << 4));
+ dev->ts_gen_cntrl = 5;
+ cx_write(TS_SOP_STAT, 0);
+ cx_write(TS_VALERR_CNTRL, 0);
+ udelay(100);
+ break;
+ default:
+ cx_write(TS_SOP_STAT, 0x00);
+ break;
+ }
+ cx_write(TS_GEN_CNTRL, dev->ts_gen_cntrl);
+ udelay(100);
+ } else if ( (core->active_type_id == CX88_MPEG_BLACKBIRD) &&
+ (core->board.mpeg & CX88_MPEG_BLACKBIRD) ) {
+ dprintk( 1, "cx8802_start_dma doing .blackbird\n");
+ cx_write(MO_PINMUX_IO, 0x88); /* enable MPEG parallel IO */
+
+ cx_write(TS_GEN_CNTRL, 0x46); /* punctured clock TS & posedge driven & software reset */
+ udelay(100);
+
+ cx_write(TS_HW_SOP_CNTRL, 0x408); /* mpeg start byte */
+ cx_write(TS_VALERR_CNTRL, 0x2000);
+
+ cx_write(TS_GEN_CNTRL, 0x06); /* punctured clock TS & posedge driven */
+ udelay(100);
+ } else {
+ printk( "%s() Failed. Unsupported value in .mpeg (0x%08x)\n", __func__,
+ core->board.mpeg );
+ return -EINVAL;
+ }
+
+ /* reset counter */
+ cx_write(MO_TS_GPCNTRL, GP_COUNT_CONTROL_RESET);
+ q->count = 1;
+
+ /* enable irqs */
+ dprintk( 1, "setting the interrupt mask\n" );
+ cx_set(MO_PCI_INTMSK, core->pci_irqmask | PCI_INT_TSINT);
+ cx_set(MO_TS_INTMSK, 0x1f0011);
+
+ /* start dma */
+ cx_set(MO_DEV_CNTRL2, (1<<5));
+ cx_set(MO_TS_DMACNTRL, 0x11);
+ return 0;
+}
+
+static int cx8802_stop_dma(struct cx8802_dev *dev)
+{
+ struct cx88_core *core = dev->core;
+ dprintk( 1, "cx8802_stop_dma\n" );
+
+ /* stop dma */
+ cx_clear(MO_TS_DMACNTRL, 0x11);
+
+ /* disable irqs */
+ cx_clear(MO_PCI_INTMSK, PCI_INT_TSINT);
+ cx_clear(MO_TS_INTMSK, 0x1f0011);
+
+ /* Reset the controller */
+ cx_write(TS_GEN_CNTRL, 0xcd);
+ return 0;
+}
+
+static int cx8802_restart_queue(struct cx8802_dev *dev,
+ struct cx88_dmaqueue *q)
+{
+ struct cx88_buffer *buf;
+
+ dprintk( 1, "cx8802_restart_queue\n" );
+ if (list_empty(&q->active))
+ {
+ struct cx88_buffer *prev;
+ prev = NULL;
+
+ dprintk(1, "cx8802_restart_queue: queue is empty\n" );
+
+ for (;;) {
+ if (list_empty(&q->queued))
+ return 0;
+ buf = list_entry(q->queued.next, struct cx88_buffer, vb.queue);
+ if (NULL == prev) {
+ list_del(&buf->vb.queue);
+ list_add_tail(&buf->vb.queue,&q->active);
+ cx8802_start_dma(dev, q, buf);
+ buf->vb.state = VIDEOBUF_ACTIVE;
+ buf->count = q->count++;
+ mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
+ dprintk(1,"[%p/%d] restart_queue - first active\n",
+ buf,buf->vb.i);
+
+ } else if (prev->vb.width == buf->vb.width &&
+ prev->vb.height == buf->vb.height &&
+ prev->fmt == buf->fmt) {
+ list_del(&buf->vb.queue);
+ list_add_tail(&buf->vb.queue,&q->active);
+ buf->vb.state = VIDEOBUF_ACTIVE;
+ buf->count = q->count++;
+ prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
+ dprintk(1,"[%p/%d] restart_queue - move to active\n",
+ buf,buf->vb.i);
+ } else {
+ return 0;
+ }
+ prev = buf;
+ }
+ return 0;
+ }
+
+ buf = list_entry(q->active.next, struct cx88_buffer, vb.queue);
+ dprintk(2,"restart_queue [%p/%d]: restart dma\n",
+ buf, buf->vb.i);
+ cx8802_start_dma(dev, q, buf);
+ list_for_each_entry(buf, &q->active, vb.queue)
+ buf->count = q->count++;
+ mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
+ return 0;
+}
+
+/* ------------------------------------------------------------------ */
+
+int cx8802_buf_prepare(struct videobuf_queue *q, struct cx8802_dev *dev,
+ struct cx88_buffer *buf, enum v4l2_field field)
+{
+ int size = dev->ts_packet_size * dev->ts_packet_count;
+ struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
+ int rc;
+
+ dprintk(1, "%s: %p\n", __func__, buf);
+ if (0 != buf->vb.baddr && buf->vb.bsize < size)
+ return -EINVAL;
+
+ if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
+ buf->vb.width = dev->ts_packet_size;
+ buf->vb.height = dev->ts_packet_count;
+ buf->vb.size = size;
+ buf->vb.field = field /*V4L2_FIELD_TOP*/;
+
+ if (0 != (rc = videobuf_iolock(q,&buf->vb,NULL)))
+ goto fail;
+ cx88_risc_databuffer(dev->pci, &buf->risc,
+ dma->sglist,
+ buf->vb.width, buf->vb.height, 0);
+ }
+ buf->vb.state = VIDEOBUF_PREPARED;
+ return 0;
+
+ fail:
+ cx88_free_buffer(q,buf);
+ return rc;
+}
+
+void cx8802_buf_queue(struct cx8802_dev *dev, struct cx88_buffer *buf)
+{
+ struct cx88_buffer *prev;
+ struct cx88_dmaqueue *cx88q = &dev->mpegq;
+
+ dprintk( 1, "cx8802_buf_queue\n" );
+ /* add jump to stopper */
+ buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
+ buf->risc.jmp[1] = cpu_to_le32(cx88q->stopper.dma);
+
+ if (list_empty(&cx88q->active)) {
+ dprintk( 1, "queue is empty - first active\n" );
+ list_add_tail(&buf->vb.queue,&cx88q->active);
+ cx8802_start_dma(dev, cx88q, buf);
+ buf->vb.state = VIDEOBUF_ACTIVE;
+ buf->count = cx88q->count++;
+ mod_timer(&cx88q->timeout, jiffies+BUFFER_TIMEOUT);
+ dprintk(1,"[%p/%d] %s - first active\n",
+ buf, buf->vb.i, __func__);
+
+ } else {
+ dprintk( 1, "queue is not empty - append to active\n" );
+ prev = list_entry(cx88q->active.prev, struct cx88_buffer, vb.queue);
+ list_add_tail(&buf->vb.queue,&cx88q->active);
+ buf->vb.state = VIDEOBUF_ACTIVE;
+ buf->count = cx88q->count++;
+ prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
+ dprintk( 1, "[%p/%d] %s - append to active\n",
+ buf, buf->vb.i, __func__);
+ }
+}
+
+/* ----------------------------------------------------------- */
+
+static void do_cancel_buffers(struct cx8802_dev *dev, const char *reason, int restart)
+{
+ struct cx88_dmaqueue *q = &dev->mpegq;
+ struct cx88_buffer *buf;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->slock,flags);
+ while (!list_empty(&q->active)) {
+ buf = list_entry(q->active.next, struct cx88_buffer, vb.queue);
+ list_del(&buf->vb.queue);
+ buf->vb.state = VIDEOBUF_ERROR;
+ wake_up(&buf->vb.done);
+ dprintk(1,"[%p/%d] %s - dma=0x%08lx\n",
+ buf, buf->vb.i, reason, (unsigned long)buf->risc.dma);
+ }
+ if (restart)
+ {
+ dprintk(1, "restarting queue\n" );
+ cx8802_restart_queue(dev,q);
+ }
+ spin_unlock_irqrestore(&dev->slock,flags);
+}
+
+void cx8802_cancel_buffers(struct cx8802_dev *dev)
+{
+ struct cx88_dmaqueue *q = &dev->mpegq;
+
+ dprintk( 1, "cx8802_cancel_buffers" );
+ del_timer_sync(&q->timeout);
+ cx8802_stop_dma(dev);
+ do_cancel_buffers(dev,"cancel",0);
+}
+
+static void cx8802_timeout(unsigned long data)
+{
+ struct cx8802_dev *dev = (struct cx8802_dev*)data;
+
+ dprintk(1, "%s\n",__func__);
+
+ if (debug)
+ cx88_sram_channel_dump(dev->core, &cx88_sram_channels[SRAM_CH28]);
+ cx8802_stop_dma(dev);
+ do_cancel_buffers(dev,"timeout",1);
+}
+
+static const char * cx88_mpeg_irqs[32] = {
+ "ts_risci1", NULL, NULL, NULL,
+ "ts_risci2", NULL, NULL, NULL,
+ "ts_oflow", NULL, NULL, NULL,
+ "ts_sync", NULL, NULL, NULL,
+ "opc_err", "par_err", "rip_err", "pci_abort",
+ "ts_err?",
+};
+
+static void cx8802_mpeg_irq(struct cx8802_dev *dev)
+{
+ struct cx88_core *core = dev->core;
+ u32 status, mask, count;
+
+ dprintk( 1, "cx8802_mpeg_irq\n" );
+ status = cx_read(MO_TS_INTSTAT);
+ mask = cx_read(MO_TS_INTMSK);
+ if (0 == (status & mask))
+ return;
+
+ cx_write(MO_TS_INTSTAT, status);
+
+ if (debug || (status & mask & ~0xff))
+ cx88_print_irqbits(core->name, "irq mpeg ",
+ cx88_mpeg_irqs, ARRAY_SIZE(cx88_mpeg_irqs),
+ status, mask);
+
+ /* risc op code error */
+ if (status & (1 << 16)) {
+ printk(KERN_WARNING "%s: mpeg risc op code error\n",core->name);
+ cx_clear(MO_TS_DMACNTRL, 0x11);
+ cx88_sram_channel_dump(dev->core, &cx88_sram_channels[SRAM_CH28]);
+ }
+
+ /* risc1 y */
+ if (status & 0x01) {
+ dprintk( 1, "wake up\n" );
+ spin_lock(&dev->slock);
+ count = cx_read(MO_TS_GPCNT);
+ cx88_wakeup(dev->core, &dev->mpegq, count);
+ spin_unlock(&dev->slock);
+ }
+
+ /* risc2 y */
+ if (status & 0x10) {
+ spin_lock(&dev->slock);
+ cx8802_restart_queue(dev,&dev->mpegq);
+ spin_unlock(&dev->slock);
+ }
+
+ /* other general errors */
+ if (status & 0x1f0100) {
+ dprintk( 0, "general errors: 0x%08x\n", status & 0x1f0100 );
+ spin_lock(&dev->slock);
+ cx8802_stop_dma(dev);
+ cx8802_restart_queue(dev,&dev->mpegq);
+ spin_unlock(&dev->slock);
+ }
+}
+
+#define MAX_IRQ_LOOP 10
+
+static irqreturn_t cx8802_irq(int irq, void *dev_id)
+{
+ struct cx8802_dev *dev = dev_id;
+ struct cx88_core *core = dev->core;
+ u32 status;
+ int loop, handled = 0;
+
+ for (loop = 0; loop < MAX_IRQ_LOOP; loop++) {
+ status = cx_read(MO_PCI_INTSTAT) &
+ (core->pci_irqmask | PCI_INT_TSINT);
+ if (0 == status)
+ goto out;
+ dprintk( 1, "cx8802_irq\n" );
+ dprintk( 1, " loop: %d/%d\n", loop, MAX_IRQ_LOOP );
+ dprintk( 1, " status: %d\n", status );
+ handled = 1;
+ cx_write(MO_PCI_INTSTAT, status);
+
+ if (status & core->pci_irqmask)
+ cx88_core_irq(core,status);
+ if (status & PCI_INT_TSINT)
+ cx8802_mpeg_irq(dev);
+ };
+ if (MAX_IRQ_LOOP == loop) {
+ dprintk( 0, "clearing mask\n" );
+ printk(KERN_WARNING "%s/0: irq loop -- clearing mask\n",
+ core->name);
+ cx_write(MO_PCI_INTMSK,0);
+ }
+
+ out:
+ return IRQ_RETVAL(handled);
+}
+
+static int cx8802_init_common(struct cx8802_dev *dev)
+{
+ struct cx88_core *core = dev->core;
+ int err;
+
+ /* pci init */
+ if (pci_enable_device(dev->pci))
+ return -EIO;
+ pci_set_master(dev->pci);
+ if (!pci_dma_supported(dev->pci,DMA_BIT_MASK(32))) {
+ printk("%s/2: Oops: no 32bit PCI DMA ???\n",dev->core->name);
+ return -EIO;
+ }
+
+ dev->pci_rev = dev->pci->revision;
+ pci_read_config_byte(dev->pci, PCI_LATENCY_TIMER, &dev->pci_lat);
+ printk(KERN_INFO "%s/2: found at %s, rev: %d, irq: %d, "
+ "latency: %d, mmio: 0x%llx\n", dev->core->name,
+ pci_name(dev->pci), dev->pci_rev, dev->pci->irq,
+ dev->pci_lat,(unsigned long long)pci_resource_start(dev->pci,0));
+
+ /* initialize driver struct */
+ spin_lock_init(&dev->slock);
+
+ /* init dma queue */
+ INIT_LIST_HEAD(&dev->mpegq.active);
+ INIT_LIST_HEAD(&dev->mpegq.queued);
+ dev->mpegq.timeout.function = cx8802_timeout;
+ dev->mpegq.timeout.data = (unsigned long)dev;
+ init_timer(&dev->mpegq.timeout);
+ cx88_risc_stopper(dev->pci,&dev->mpegq.stopper,
+ MO_TS_DMACNTRL,0x11,0x00);
+
+ /* get irq */
+ err = request_irq(dev->pci->irq, cx8802_irq,
+ IRQF_SHARED | IRQF_DISABLED, dev->core->name, dev);
+ if (err < 0) {
+ printk(KERN_ERR "%s: can't get IRQ %d\n",
+ dev->core->name, dev->pci->irq);
+ return err;
+ }
+ cx_set(MO_PCI_INTMSK, core->pci_irqmask);
+
+ /* everything worked */
+ pci_set_drvdata(dev->pci,dev);
+ return 0;
+}
+
+static void cx8802_fini_common(struct cx8802_dev *dev)
+{
+ dprintk( 2, "cx8802_fini_common\n" );
+ cx8802_stop_dma(dev);
+ pci_disable_device(dev->pci);
+
+ /* unregister stuff */
+ free_irq(dev->pci->irq, dev);
+ pci_set_drvdata(dev->pci, NULL);
+
+ /* free memory */
+ btcx_riscmem_free(dev->pci,&dev->mpegq.stopper);
+}
+
+/* ----------------------------------------------------------- */
+
+static int cx8802_suspend_common(struct pci_dev *pci_dev, pm_message_t state)
+{
+ struct cx8802_dev *dev = pci_get_drvdata(pci_dev);
+ struct cx88_core *core = dev->core;
+
+ /* stop mpeg dma */
+ spin_lock(&dev->slock);
+ if (!list_empty(&dev->mpegq.active)) {
+ dprintk( 2, "suspend\n" );
+ printk("%s: suspend mpeg\n", core->name);
+ cx8802_stop_dma(dev);
+ del_timer(&dev->mpegq.timeout);
+ }
+ spin_unlock(&dev->slock);
+
+ /* FIXME -- shutdown device */
+ cx88_shutdown(dev->core);
+
+ pci_save_state(pci_dev);
+ if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) {
+ pci_disable_device(pci_dev);
+ dev->state.disabled = 1;
+ }
+ return 0;
+}
+
+static int cx8802_resume_common(struct pci_dev *pci_dev)
+{
+ struct cx8802_dev *dev = pci_get_drvdata(pci_dev);
+ struct cx88_core *core = dev->core;
+ int err;
+
+ if (dev->state.disabled) {
+ err=pci_enable_device(pci_dev);
+ if (err) {
+ printk(KERN_ERR "%s: can't enable device\n",
+ dev->core->name);
+ return err;
+ }
+ dev->state.disabled = 0;
+ }
+ err=pci_set_power_state(pci_dev, PCI_D0);
+ if (err) {
+ printk(KERN_ERR "%s: can't enable device\n",
+ dev->core->name);
+ pci_disable_device(pci_dev);
+ dev->state.disabled = 1;
+
+ return err;
+ }
+ pci_restore_state(pci_dev);
+
+ /* FIXME: re-initialize hardware */
+ cx88_reset(dev->core);
+
+ /* restart video+vbi capture */
+ spin_lock(&dev->slock);
+ if (!list_empty(&dev->mpegq.active)) {
+ printk("%s: resume mpeg\n", core->name);
+ cx8802_restart_queue(dev,&dev->mpegq);
+ }
+ spin_unlock(&dev->slock);
+
+ return 0;
+}
+
+struct cx8802_driver * cx8802_get_driver(struct cx8802_dev *dev, enum cx88_board_type btype)
+{
+ struct cx8802_driver *d;
+
+ list_for_each_entry(d, &dev->drvlist, drvlist)
+ if (d->type_id == btype)
+ return d;
+
+ return NULL;
+}
+
+/* Driver asked for hardware access. */
+static int cx8802_request_acquire(struct cx8802_driver *drv)
+{
+ struct cx88_core *core = drv->core;
+ unsigned int i;
+
+ /* Fail a request for hardware if the device is busy. */
+ if (core->active_type_id != CX88_BOARD_NONE &&
+ core->active_type_id != drv->type_id)
+ return -EBUSY;
+
+ if (drv->type_id == CX88_MPEG_DVB) {
+ /* When switching to DVB, always set the input to the tuner */
+ core->last_analog_input = core->input;
+ core->input = 0;
+ for (i = 0;
+ i < (sizeof(core->board.input) / sizeof(struct cx88_input));
+ i++) {
+ if (core->board.input[i].type == CX88_VMUX_DVB) {
+ core->input = i;
+ break;
+ }
+ }
+ }
+
+ if (drv->advise_acquire)
+ {
+ core->active_ref++;
+ if (core->active_type_id == CX88_BOARD_NONE) {
+ core->active_type_id = drv->type_id;
+ drv->advise_acquire(drv);
+ }
+
+ mpeg_dbg(1,"%s() Post acquire GPIO=%x\n", __func__, cx_read(MO_GP0_IO));
+ }
+
+ return 0;
+}
+
+/* Driver asked to release hardware. */
+static int cx8802_request_release(struct cx8802_driver *drv)
+{
+ struct cx88_core *core = drv->core;
+
+ if (drv->advise_release && --core->active_ref == 0)
+ {
+ if (drv->type_id == CX88_MPEG_DVB) {
+ /* If the DVB driver is releasing, reset the input
+ state to the last configured analog input */
+ core->input = core->last_analog_input;
+ }
+
+ drv->advise_release(drv);
+ core->active_type_id = CX88_BOARD_NONE;
+ mpeg_dbg(1,"%s() Post release GPIO=%x\n", __func__, cx_read(MO_GP0_IO));
+ }
+
+ return 0;
+}
+
+static int cx8802_check_driver(struct cx8802_driver *drv)
+{
+ if (drv == NULL)
+ return -ENODEV;
+
+ if ((drv->type_id != CX88_MPEG_DVB) &&
+ (drv->type_id != CX88_MPEG_BLACKBIRD))
+ return -EINVAL;
+
+ if ((drv->hw_access != CX8802_DRVCTL_SHARED) &&
+ (drv->hw_access != CX8802_DRVCTL_EXCLUSIVE))
+ return -EINVAL;
+
+ if ((drv->probe == NULL) ||
+ (drv->remove == NULL) ||
+ (drv->advise_acquire == NULL) ||
+ (drv->advise_release == NULL))
+ return -EINVAL;
+
+ return 0;
+}
+
+int cx8802_register_driver(struct cx8802_driver *drv)
+{
+ struct cx8802_dev *dev;
+ struct cx8802_driver *driver;
+ int err, i = 0;
+
+ printk(KERN_INFO
+ "cx88/2: registering cx8802 driver, type: %s access: %s\n",
+ drv->type_id == CX88_MPEG_DVB ? "dvb" : "blackbird",
+ drv->hw_access == CX8802_DRVCTL_SHARED ? "shared" : "exclusive");
+
+ if ((err = cx8802_check_driver(drv)) != 0) {
+ printk(KERN_ERR "cx88/2: cx8802_driver is invalid\n");
+ return err;
+ }
+
+ mutex_lock(&cx8802_mutex);
+
+ list_for_each_entry(dev, &cx8802_devlist, devlist) {
+ printk(KERN_INFO
+ "%s/2: subsystem: %04x:%04x, board: %s [card=%d]\n",
+ dev->core->name, dev->pci->subsystem_vendor,
+ dev->pci->subsystem_device, dev->core->board.name,
+ dev->core->boardnr);
+
+ /* Bring up a new struct for each driver instance */
+ driver = kzalloc(sizeof(*drv),GFP_KERNEL);
+ if (driver == NULL) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ /* Snapshot of the driver registration data */
+ drv->core = dev->core;
+ drv->suspend = cx8802_suspend_common;
+ drv->resume = cx8802_resume_common;
+ drv->request_acquire = cx8802_request_acquire;
+ drv->request_release = cx8802_request_release;
+ memcpy(driver, drv, sizeof(*driver));
+
+ mutex_lock(&drv->core->lock);
+ err = drv->probe(driver);
+ if (err == 0) {
+ i++;
+ list_add_tail(&driver->drvlist, &dev->drvlist);
+ } else {
+ printk(KERN_ERR
+ "%s/2: cx8802 probe failed, err = %d\n",
+ dev->core->name, err);
+ }
+ mutex_unlock(&drv->core->lock);
+ }
+
+ err = i ? 0 : -ENODEV;
+out:
+ mutex_unlock(&cx8802_mutex);
+ return err;
+}
+
+int cx8802_unregister_driver(struct cx8802_driver *drv)
+{
+ struct cx8802_dev *dev;
+ struct cx8802_driver *d, *dtmp;
+ int err = 0;
+
+ printk(KERN_INFO
+ "cx88/2: unregistering cx8802 driver, type: %s access: %s\n",
+ drv->type_id == CX88_MPEG_DVB ? "dvb" : "blackbird",
+ drv->hw_access == CX8802_DRVCTL_SHARED ? "shared" : "exclusive");
+
+ mutex_lock(&cx8802_mutex);
+
+ list_for_each_entry(dev, &cx8802_devlist, devlist) {
+ printk(KERN_INFO
+ "%s/2: subsystem: %04x:%04x, board: %s [card=%d]\n",
+ dev->core->name, dev->pci->subsystem_vendor,
+ dev->pci->subsystem_device, dev->core->board.name,
+ dev->core->boardnr);
+
+ mutex_lock(&dev->core->lock);
+
+ list_for_each_entry_safe(d, dtmp, &dev->drvlist, drvlist) {
+ /* only unregister the correct driver type */
+ if (d->type_id != drv->type_id)
+ continue;
+
+ err = d->remove(d);
+ if (err == 0) {
+ list_del(&d->drvlist);
+ kfree(d);
+ } else
+ printk(KERN_ERR "%s/2: cx8802 driver remove "
+ "failed (%d)\n", dev->core->name, err);
+ }
+
+ mutex_unlock(&dev->core->lock);
+ }
+
+ mutex_unlock(&cx8802_mutex);
+
+ return err;
+}
+
+/* ----------------------------------------------------------- */
+static int __devinit cx8802_probe(struct pci_dev *pci_dev,
+ const struct pci_device_id *pci_id)
+{
+ struct cx8802_dev *dev;
+ struct cx88_core *core;
+ int err;
+
+ /* general setup */
+ core = cx88_core_get(pci_dev);
+ if (NULL == core)
+ return -EINVAL;
+
+ printk("%s/2: cx2388x 8802 Driver Manager\n", core->name);
+
+ err = -ENODEV;
+ if (!core->board.mpeg)
+ goto fail_core;
+
+ err = -ENOMEM;
+ dev = kzalloc(sizeof(*dev),GFP_KERNEL);
+ if (NULL == dev)
+ goto fail_core;
+ dev->pci = pci_dev;
+ dev->core = core;
+
+ /* Maintain a reference so cx88-video can query the 8802 device. */
+ core->dvbdev = dev;
+
+ err = cx8802_init_common(dev);
+ if (err != 0)
+ goto fail_free;
+
+ INIT_LIST_HEAD(&dev->drvlist);
+ mutex_lock(&cx8802_mutex);
+ list_add_tail(&dev->devlist,&cx8802_devlist);
+ mutex_unlock(&cx8802_mutex);
+
+ /* now autoload cx88-dvb or cx88-blackbird */
+ request_modules(dev);
+ return 0;
+
+ fail_free:
+ kfree(dev);
+ fail_core:
+ core->dvbdev = NULL;
+ cx88_core_put(core,pci_dev);
+ return err;
+}
+
+static void __devexit cx8802_remove(struct pci_dev *pci_dev)
+{
+ struct cx8802_dev *dev;
+
+ dev = pci_get_drvdata(pci_dev);
+
+ dprintk( 1, "%s\n", __func__);
+
+ flush_request_modules(dev);
+
+ mutex_lock(&dev->core->lock);
+
+ if (!list_empty(&dev->drvlist)) {
+ struct cx8802_driver *drv, *tmp;
+ int err;
+
+ printk(KERN_WARNING "%s/2: Trying to remove cx8802 driver "
+ "while cx8802 sub-drivers still loaded?!\n",
+ dev->core->name);
+
+ list_for_each_entry_safe(drv, tmp, &dev->drvlist, drvlist) {
+ err = drv->remove(drv);
+ if (err == 0) {
+ list_del(&drv->drvlist);
+ } else
+ printk(KERN_ERR "%s/2: cx8802 driver remove "
+ "failed (%d)\n", dev->core->name, err);
+ kfree(drv);
+ }
+ }
+
+ mutex_unlock(&dev->core->lock);
+
+ /* Destroy any 8802 reference. */
+ dev->core->dvbdev = NULL;
+
+ /* common */
+ cx8802_fini_common(dev);
+ cx88_core_put(dev->core,dev->pci);
+ kfree(dev);
+}
+
+static const struct pci_device_id cx8802_pci_tbl[] = {
+ {
+ .vendor = 0x14f1,
+ .device = 0x8802,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ },{
+ /* --- end of list --- */
+ }
+};
+MODULE_DEVICE_TABLE(pci, cx8802_pci_tbl);
+
+static struct pci_driver cx8802_pci_driver = {
+ .name = "cx88-mpeg driver manager",
+ .id_table = cx8802_pci_tbl,
+ .probe = cx8802_probe,
+ .remove = __devexit_p(cx8802_remove),
+};
+
+static int __init cx8802_init(void)
+{
+ printk(KERN_INFO "cx88/2: cx2388x MPEG-TS Driver Manager version %s loaded\n",
+ CX88_VERSION);
+ return pci_register_driver(&cx8802_pci_driver);
+}
+
+static void __exit cx8802_fini(void)
+{
+ pci_unregister_driver(&cx8802_pci_driver);
+}
+
+module_init(cx8802_init);
+module_exit(cx8802_fini);
+EXPORT_SYMBOL(cx8802_buf_prepare);
+EXPORT_SYMBOL(cx8802_buf_queue);
+EXPORT_SYMBOL(cx8802_cancel_buffers);
+
+EXPORT_SYMBOL(cx8802_register_driver);
+EXPORT_SYMBOL(cx8802_unregister_driver);
+EXPORT_SYMBOL(cx8802_get_driver);
+/* ----------------------------------------------------------- */
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ * kate: eol "unix"; indent-width 3; remove-trailing-space on; replace-trailing-space-save on; tab-width 8; replace-tabs off; space-indent off; mixed-indent off
+ */