--- /dev/null
+/*
+ *
+ * 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...) do { \
+ if (debug + 1 > level) \
+ printk(KERN_DEBUG "%s/2-mpeg: " fmt, dev->core->name, ## arg); \
+} while(0)
+
+#define mpeg_dbg(level, fmt, arg...) do { \
+ if (debug + 1 > level) \
+ printk(KERN_DEBUG "%s/2-mpeg: " fmt, core->name, ## arg); \
+} while(0)
+
+#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);
+/* ------------------------------------------------------------------ */
+
+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",
+ core->width, core->height, core->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, dev->ts_packet_size);
+
+ /* 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))
+ return 0;
+
+ buf = list_entry(q->active.next, struct cx88_buffer, list);
+ dprintk(2,"restart_queue [%p/%d]: restart dma\n",
+ buf, buf->vb.v4l2_buf.index);
+ cx8802_start_dma(dev, q, buf);
+ list_for_each_entry(buf, &q->active, list)
+ buf->count = q->count++;
+ return 0;
+}
+
+/* ------------------------------------------------------------------ */
+
+int cx8802_buf_prepare(struct vb2_queue *q, struct cx8802_dev *dev,
+ struct cx88_buffer *buf)
+{
+ int size = dev->ts_packet_size * dev->ts_packet_count;
+ struct sg_table *sgt = vb2_dma_sg_plane_desc(&buf->vb, 0);
+ struct cx88_riscmem *risc = &buf->risc;
+ int rc;
+
+ if (vb2_plane_size(&buf->vb, 0) < size)
+ return -EINVAL;
+ vb2_set_plane_payload(&buf->vb, 0, size);
+
+ rc = cx88_risc_databuffer(dev->pci, risc, sgt->sgl,
+ dev->ts_packet_size, dev->ts_packet_count, 0);
+ if (rc) {
+ if (risc->cpu)
+ pci_free_consistent(dev->pci, risc->size, risc->cpu, risc->dma);
+ memset(risc, 0, sizeof(*risc));
+ return rc;
+ }
+ return 0;
+}
+
+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 start */
+ buf->risc.cpu[1] = cpu_to_le32(buf->risc.dma + 8);
+ buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_CNT_INC);
+ buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma + 8);
+
+ if (list_empty(&cx88q->active)) {
+ dprintk( 1, "queue is empty - first active\n" );
+ list_add_tail(&buf->list, &cx88q->active);
+ buf->count = cx88q->count++;
+ dprintk(1,"[%p/%d] %s - first active\n",
+ buf, buf->vb.v4l2_buf.index, __func__);
+
+ } else {
+ buf->risc.cpu[0] |= cpu_to_le32(RISC_IRQ1);
+ dprintk( 1, "queue is not empty - append to active\n" );
+ prev = list_entry(cx88q->active.prev, struct cx88_buffer, list);
+ list_add_tail(&buf->list, &cx88q->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.v4l2_buf.index, __func__);
+ }
+}
+
+/* ----------------------------------------------------------- */
+
+static void do_cancel_buffers(struct cx8802_dev *dev)
+{
+ 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, list);
+ list_del(&buf->list);
+ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
+ }
+ spin_unlock_irqrestore(&dev->slock,flags);
+}
+
+void cx8802_cancel_buffers(struct cx8802_dev *dev)
+{
+ dprintk( 1, "cx8802_cancel_buffers" );
+ cx8802_stop_dma(dev);
+ do_cancel_buffers(dev);
+}
+
+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);
+ }
+
+ /* other general errors */
+ if (status & 0x1f0100) {
+ dprintk( 0, "general errors: 0x%08x\n", status & 0x1f0100 );
+ spin_lock(&dev->slock);
+ cx8802_stop_dma(dev);
+ 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);
+
+ /* get irq */
+ err = request_irq(dev->pci->irq, cx8802_irq,
+ IRQF_SHARED, 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);
+}
+
+/* ----------------------------------------------------------- */
+
+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;
+ unsigned long flags;
+
+ /* stop mpeg dma */
+ spin_lock_irqsave(&dev->slock, flags);
+ if (!list_empty(&dev->mpegq.active)) {
+ dprintk( 2, "suspend\n" );
+ printk("%s: suspend mpeg\n", core->name);
+ cx8802_stop_dma(dev);
+ }
+ spin_unlock_irqrestore(&dev->slock, flags);
+
+ /* 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;
+ unsigned long flags;
+ 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_irqsave(&dev->slock, flags);
+ if (!list_empty(&dev->mpegq.active)) {
+ printk("%s: resume mpeg\n", core->name);
+ cx8802_restart_queue(dev,&dev->mpegq);
+ }
+ spin_unlock_irqrestore(&dev->slock, flags);
+
+ 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 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->alloc_ctx = vb2_dma_sg_init_ctx(&pci_dev->dev);
+ if (IS_ERR(dev->alloc_ctx)) {
+ err = PTR_ERR(dev->alloc_ctx);
+ goto fail_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:
+ vb2_dma_sg_cleanup_ctx(dev->alloc_ctx);
+ fail_dev:
+ kfree(dev);
+ fail_core:
+ core->dvbdev = NULL;
+ cx88_core_put(core,pci_dev);
+ return err;
+}
+
+static void 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);
+ vb2_dma_sg_cleanup_ctx(dev->alloc_ctx);
+ 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 = cx8802_remove,
+};
+
+module_pci_driver(cx8802_pci_driver);
+
+EXPORT_SYMBOL(cx8802_buf_prepare);
+EXPORT_SYMBOL(cx8802_buf_queue);
+EXPORT_SYMBOL(cx8802_cancel_buffers);
+EXPORT_SYMBOL(cx8802_start_dma);
+
+EXPORT_SYMBOL(cx8802_register_driver);
+EXPORT_SYMBOL(cx8802_unregister_driver);
+EXPORT_SYMBOL(cx8802_get_driver);
Code Review / kvmfornfv.git / blobdiff