[media] cx231xx: Added support for Carraera, Shelby, RDx_253S and VIDEO_GRABBER

Added support for new cx231xx boards - Carraera, Shelby, RDx_253S and
VIDEO_GRABBER.

[mchehab@redhat.com: Fix a merge conflict with BKL removal patches]
Signed-off-by: Palash Bandyopadhyay <palash.bandyopadhyay@conexant.com>
Signed-off-by: Devin Heitmueller <dheitmueller@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/cx231xx/Makefile

 cx231xx-objs     := cx231xx-video.o cx231xx-i2c.o cx231xx-cards.o cx231xx-core.o \
-		    cx231xx-avcore.o cx231xx-pcb-cfg.o cx231xx-vbi.o
+		    cx231xx-avcore.o cx231xx-417.o cx231xx-pcb-cfg.o cx231xx-vbi.o
 
 cx231xx-alsa-objs := cx231xx-audio.o
 

drivers/media/video/cx231xx/cx231xx-audio.c

@@ -75,6 +75,30 @@ static int cx231xx_isoc_audio_deinit(struct cx231xx *dev)
 	return 0;
 }
 
+static int cx231xx_bulk_audio_deinit(struct cx231xx *dev)
+{
+	int i;
+
+	dprintk("Stopping bulk\n");
+
+	for (i = 0; i < CX231XX_AUDIO_BUFS; i++) {
+		if (dev->adev.urb[i]) {
+			if (!irqs_disabled())
+				usb_kill_urb(dev->adev.urb[i]);
+			else
+				usb_unlink_urb(dev->adev.urb[i]);
+
+			usb_free_urb(dev->adev.urb[i]);
+			dev->adev.urb[i] = NULL;
+
+			kfree(dev->adev.transfer_buffer[i]);
+			dev->adev.transfer_buffer[i] = NULL;
+		}
+	}
+
+	return 0;
+}
+
 static void cx231xx_audio_isocirq(struct urb *urb)
 {
 	struct cx231xx *dev = urb->context;
@@ -158,14 +182,92 @@ static void cx231xx_audio_isocirq(struct urb *urb)
 	return;
 }
 
+static void cx231xx_audio_bulkirq(struct urb *urb)
+{
+	struct cx231xx *dev = urb->context;
+	unsigned int oldptr;
+	int period_elapsed = 0;
+	int status;
+	unsigned char *cp;
+	unsigned int stride;
+	struct snd_pcm_substream *substream;
+	struct snd_pcm_runtime *runtime;
+
+	switch (urb->status) {
+	case 0:		/* success */
+	case -ETIMEDOUT:	/* NAK */
+		break;
+	case -ECONNRESET:	/* kill */
+	case -ENOENT:
+	case -ESHUTDOWN:
+		return;
+	default:		/* error */
+		dprintk("urb completition error %d.\n", urb->status);
+		break;
+	}
+
+	if (dev->adev.capture_pcm_substream) {
+		substream = dev->adev.capture_pcm_substream;
+		runtime = substream->runtime;
+		stride = runtime->frame_bits >> 3;
+
+		if (1) {
+			int length = urb->actual_length /
+				     stride;
+			cp = (unsigned char *)urb->transfer_buffer;
+
+			oldptr = dev->adev.hwptr_done_capture;
+			if (oldptr + length >= runtime->buffer_size) {
+				unsigned int cnt;
+
+				cnt = runtime->buffer_size - oldptr;
+				memcpy(runtime->dma_area + oldptr * stride, cp,
+				       cnt * stride);
+				memcpy(runtime->dma_area, cp + cnt * stride,
+				       length * stride - cnt * stride);
+			} else {
+				memcpy(runtime->dma_area + oldptr * stride, cp,
+				       length * stride);
+			}
+
+			snd_pcm_stream_lock(substream);
+
+			dev->adev.hwptr_done_capture += length;
+			if (dev->adev.hwptr_done_capture >=
+						runtime->buffer_size)
+				dev->adev.hwptr_done_capture -=
+						runtime->buffer_size;
+
+			dev->adev.capture_transfer_done += length;
+			if (dev->adev.capture_transfer_done >=
+				runtime->period_size) {
+				dev->adev.capture_transfer_done -=
+						runtime->period_size;
+				period_elapsed = 1;
+			}
+			snd_pcm_stream_unlock(substream);
+		}
+		if (period_elapsed)
+			snd_pcm_period_elapsed(substream);
+	}
+	urb->status = 0;
+
+	status = usb_submit_urb(urb, GFP_ATOMIC);
+	if (status < 0) {
+		cx231xx_errdev("resubmit of audio urb failed (error=%i)\n",
+			       status);
+	}
+	return;
+}
+
 static int cx231xx_init_audio_isoc(struct cx231xx *dev)
 {
 	int i, errCode;
 	int sb_size;
 
-	cx231xx_info("%s: Starting AUDIO transfers\n", __func__);
+	cx231xx_info("%s: Starting ISO AUDIO transfers\n", __func__);
 
-	sb_size = CX231XX_NUM_AUDIO_PACKETS * dev->adev.max_pkt_size;
+	sb_size = CX231XX_ISO_NUM_AUDIO_PACKETS * dev->adev.max_pkt_size;
 
 	for (i = 0; i < CX231XX_AUDIO_BUFS; i++) {
 		struct urb *urb;
@@ -176,7 +278,7 @@ static int cx231xx_init_audio_isoc(struct cx231xx *dev)
 			return -ENOMEM;
 
 		memset(dev->adev.transfer_buffer[i], 0x80, sb_size);
-		urb = usb_alloc_urb(CX231XX_NUM_AUDIO_PACKETS, GFP_ATOMIC);
+		urb = usb_alloc_urb(CX231XX_ISO_NUM_AUDIO_PACKETS, GFP_ATOMIC);
 		if (!urb) {
 			cx231xx_errdev("usb_alloc_urb failed!\n");
 			for (j = 0; j < i; j++) {
@@ -194,10 +296,10 @@ static int cx231xx_init_audio_isoc(struct cx231xx *dev)
 		urb->transfer_buffer = dev->adev.transfer_buffer[i];
 		urb->interval = 1;
 		urb->complete = cx231xx_audio_isocirq;
-		urb->number_of_packets = CX231XX_NUM_AUDIO_PACKETS;
+		urb->number_of_packets = CX231XX_ISO_NUM_AUDIO_PACKETS;
 		urb->transfer_buffer_length = sb_size;
 
-		for (j = k = 0; j < CX231XX_NUM_AUDIO_PACKETS;
+		for (j = k = 0; j < CX231XX_ISO_NUM_AUDIO_PACKETS;
 			j++, k += dev->adev.max_pkt_size) {
 			urb->iso_frame_desc[j].offset = k;
 			urb->iso_frame_desc[j].length = dev->adev.max_pkt_size;
@@ -216,6 +318,59 @@ static int cx231xx_init_audio_isoc(struct cx231xx *dev)
 	return errCode;
 }
 
+static int cx231xx_init_audio_bulk(struct cx231xx *dev)
+{
+	int i, errCode;
+	int sb_size;
+
+	cx231xx_info("%s: Starting BULK AUDIO transfers\n", __func__);
+
+	sb_size = CX231XX_NUM_AUDIO_PACKETS * dev->adev.max_pkt_size;
+
+	for (i = 0; i < CX231XX_AUDIO_BUFS; i++) {
+		struct urb *urb;
+		int j;
+
+		dev->adev.transfer_buffer[i] = kmalloc(sb_size, GFP_ATOMIC);
+		if (!dev->adev.transfer_buffer[i])
+			return -ENOMEM;
+
+		memset(dev->adev.transfer_buffer[i], 0x80, sb_size);
+		urb = usb_alloc_urb(CX231XX_NUM_AUDIO_PACKETS, GFP_ATOMIC);
+		if (!urb) {
+			cx231xx_errdev("usb_alloc_urb failed!\n");
+			for (j = 0; j < i; j++) {
+				usb_free_urb(dev->adev.urb[j]);
+				kfree(dev->adev.transfer_buffer[j]);
+			}
+			return -ENOMEM;
+		}
+
+		urb->dev = dev->udev;
+		urb->context = dev;
+		urb->pipe = usb_rcvbulkpipe(dev->udev,
+						dev->adev.end_point_addr);
+		urb->transfer_flags = 0;
+		urb->transfer_buffer = dev->adev.transfer_buffer[i];
+		urb->complete = cx231xx_audio_bulkirq;
+		urb->transfer_buffer_length = sb_size;
+
+		dev->adev.urb[i] = urb;
+
+	}
+
+	for (i = 0; i < CX231XX_AUDIO_BUFS; i++) {
+		errCode = usb_submit_urb(dev->adev.urb[i], GFP_ATOMIC);
+		if (errCode < 0) {
+			cx231xx_bulk_audio_deinit(dev);
+			return errCode;
+		}
+	}
+
+	return errCode;
+}
+
+
 static int cx231xx_cmd(struct cx231xx *dev, int cmd, int arg)
 {
 	dprintk("%s transfer\n", (dev->adev.capture_stream == STREAM_ON) ?
@@ -225,7 +380,12 @@ static int cx231xx_cmd(struct cx231xx *dev, int cmd, int arg)
 	case CX231XX_CAPTURE_STREAM_EN:
 		if (dev->adev.capture_stream == STREAM_OFF && arg == 1) {
 			dev->adev.capture_stream = STREAM_ON;
-			cx231xx_init_audio_isoc(dev);
+			if (is_fw_load(dev) == 0)
+				cx25840_call(dev, core, load_fw);
+			if (dev->USE_ISO)
+				cx231xx_init_audio_isoc(dev);
+			else
+				cx231xx_init_audio_bulk(dev);
 		} else if (dev->adev.capture_stream == STREAM_ON && arg == 0) {
 			dev->adev.capture_stream = STREAM_OFF;
 			cx231xx_isoc_audio_deinit(dev);
@@ -300,7 +460,10 @@ static int snd_cx231xx_capture_open(struct snd_pcm_substream *substream)
 
 	/* set alternate setting for audio interface */
 	/* 1 - 48000 samples per sec */
-	ret = cx231xx_set_alt_setting(dev, INDEX_AUDIO, 1);
+	if (dev->USE_ISO)
+		ret = cx231xx_set_alt_setting(dev, INDEX_AUDIO, 1);
+	else
+		ret = cx231xx_set_alt_setting(dev, INDEX_AUDIO, 0);
 	if (ret < 0) {
 		cx231xx_errdev("failed to set alternate setting !\n");
 
@@ -330,6 +493,9 @@ static int snd_cx231xx_pcm_close(struct snd_pcm_substream *substream)
 
 	dprintk("closing device\n");
 
+	/* inform hardware to start streaming */
+	ret = cx231xx_capture_start(dev, 0, Audio);
+
 	/* set alternate setting for audio interface */
 	/* 1 - 48000 samples per sec */
 	ret = cx231xx_set_alt_setting(dev, INDEX_AUDIO, 0);
@@ -339,9 +505,6 @@ static int snd_cx231xx_pcm_close(struct snd_pcm_substream *substream)
 		return ret;
 	}
 
-	/* inform hardware to start streaming */
-	ret = cx231xx_capture_start(dev, 0, Audio);
-
 	dev->mute = 1;
 	mutex_lock(&dev->lock);
 	dev->adev.users--;
@@ -391,6 +554,11 @@ static int snd_cx231xx_hw_capture_free(struct snd_pcm_substream *substream)
 
 static int snd_cx231xx_prepare(struct snd_pcm_substream *substream)
 {
+	struct cx231xx *dev = snd_pcm_substream_chip(substream);
+
+	dev->adev.hwptr_done_capture = 0;
+	dev->adev.capture_transfer_done = 0;
+
 	return 0;
 }
 
@@ -495,6 +663,7 @@ static int cx231xx_audio_init(struct cx231xx *dev)
 	pcm->info_flags = 0;
 	pcm->private_data = dev;
 	strcpy(pcm->name, "Conexant cx231xx Capture");
+	snd_card_set_dev(card, &dev->udev->dev);
 	strcpy(card->driver, "Cx231xx-Audio");
 	strcpy(card->shortname, "Cx231xx Audio");
 	strcpy(card->longname, "Conexant cx231xx Audio");

drivers/media/video/cx231xx/cx231xx-conf-reg.h

@@ -39,6 +39,7 @@
 #define CIR_CAR_REG             0x38
 #define CIR_OT_CFG1             0x40
 #define CIR_OT_CFG2             0x44
+#define GBULK_BIT_EN            0x68
 #define PWR_CTL_EN              0x74
 
 /* Polaris Endpoints capture mask for register EP_MODE_SET */

drivers/media/video/cx231xx/cx231xx-i2c.c

@@ -359,7 +359,7 @@ static int cx231xx_i2c_xfer(struct i2c_adapter *i2c_adap,
 
 	if (num <= 0)
 		return 0;
-
+	mutex_lock(&dev->i2c_lock);
 	for (i = 0; i < num; i++) {
 
 		addr = msgs[i].addr >> 1;
@@ -372,6 +372,7 @@ static int cx231xx_i2c_xfer(struct i2c_adapter *i2c_adap,
 			rc = cx231xx_i2c_check_for_device(i2c_adap, &msgs[i]);
 			if (rc < 0) {
 				dprintk2(2, " no device\n");
+				mutex_lock(&dev->i2c_lock);
 				return rc;
 			}
 
@@ -384,7 +385,7 @@ static int cx231xx_i2c_xfer(struct i2c_adapter *i2c_adap,
 			}
 		} else if (i + 1 < num && (msgs[i + 1].flags & I2C_M_RD) &&
 			   msgs[i].addr == msgs[i + 1].addr
-			   && (msgs[i].len <= 2) && (bus->nr < 2)) {
+			   && (msgs[i].len <= 2) && (bus->nr < 3)) {
 			/* read bytes */
 			rc = cx231xx_i2c_recv_bytes_with_saddr(i2c_adap,
 							       &msgs[i],
@@ -407,10 +408,11 @@ static int cx231xx_i2c_xfer(struct i2c_adapter *i2c_adap,
 		if (i2c_debug >= 2)
 			printk("\n");
 	}
-
+	mutex_unlock(&dev->i2c_lock);
 	return num;
 err:
 	dprintk2(2, " ERROR: %i\n", rc);
+	mutex_unlock(&dev->i2c_lock);
 	return rc;
 }
 

drivers/media/video/cx231xx/cx231xx-input.c

@@ -61,6 +61,7 @@ struct cx231xx_ir_poll_result {
 struct cx231xx_IR {
 	struct cx231xx *dev;
 	struct input_dev *input;
+	struct ir_input_state ir;
 	char name[32];
 	char phys[32];
 
@@ -68,7 +69,9 @@ struct cx231xx_IR {
 	int polling;
 	struct work_struct work;
 	struct timer_list timer;
+	unsigned int last_toggle:1;
 	unsigned int last_readcount;
+	unsigned int repeat_interval;
 
 	int (*get_key) (struct cx231xx_IR *, struct cx231xx_ir_poll_result *);
 };
@@ -80,6 +83,7 @@ struct cx231xx_IR {
 static void cx231xx_ir_handle_key(struct cx231xx_IR *ir)
 {
 	int result;
+	int do_sendkey = 0;
 	struct cx231xx_ir_poll_result poll_result;
 
 	/* read the registers containing the IR status */
@@ -93,23 +97,44 @@ static void cx231xx_ir_handle_key(struct cx231xx_IR *ir)
 		poll_result.toggle_bit, poll_result.read_count,
 		ir->last_readcount, poll_result.rc_data[0]);
 
-	if (poll_result.read_count > 0 &&
-	    poll_result.read_count != ir->last_readcount)
-		ir_keydown(ir->input,
-			   poll_result.rc_data[0],
-			   poll_result.toggle_bit);
-
-	if (ir->dev->chip_id == CHIP_ID_EM2874)
+	if (ir->dev->chip_id == CHIP_ID_EM2874) {
 		/* The em2874 clears the readcount field every time the
 		   register is read.  The em2860/2880 datasheet says that it
 		   is supposed to clear the readcount, but it doesn't.  So with
 		   the em2874, we are looking for a non-zero read count as
 		   opposed to a readcount that is incrementing */
 		ir->last_readcount = 0;
-	else
-		ir->last_readcount = poll_result.read_count;
+	}
+
+	if (poll_result.read_count == 0) {
+		/* The button has not been pressed since the last read */
+	} else if (ir->last_toggle != poll_result.toggle_bit) {
+		/* A button has been pressed */
+		dprintk("button has been pressed\n");
+		ir->last_toggle = poll_result.toggle_bit;
+		ir->repeat_interval = 0;
+		do_sendkey = 1;
+	} else if (poll_result.toggle_bit == ir->last_toggle &&
+		   poll_result.read_count > 0 &&
+		   poll_result.read_count != ir->last_readcount) {
+		/* The button is still being held down */
+		dprintk("button being held down\n");
+
+		/* Debouncer for first keypress */
+		if (ir->repeat_interval++ > 9) {
+			/* Start repeating after 1 second */
+			do_sendkey = 1;
+		}
+	}
 
+	if (do_sendkey) {
+		dprintk("sending keypress\n");
+		ir_input_keydown(ir->input, &ir->ir, poll_result.rc_data[0]);
+		ir_input_nokey(ir->input, &ir->ir);
 	}
+
+	ir->last_readcount = poll_result.read_count;
+	return;
 }
 
 static void ir_timer(unsigned long data)
@@ -175,6 +200,10 @@ int cx231xx_ir_init(struct cx231xx *dev)
 	usb_make_path(dev->udev, ir->phys, sizeof(ir->phys));
 	strlcat(ir->phys, "/input0", sizeof(ir->phys));
 
+	err = ir_input_init(input_dev, &ir->ir, IR_TYPE_OTHER);
+	if (err < 0)
+		goto err_out_free;
+
 	input_dev->name = ir->name;
 	input_dev->phys = ir->phys;
 	input_dev->id.bustype = BUS_USB;
@@ -190,7 +219,7 @@ int cx231xx_ir_init(struct cx231xx *dev)
 	cx231xx_ir_start(ir);
 
 	/* all done */
-	err = __ir_input_register(ir->input, dev->board.ir_codes,
+	err = ir_input_register(ir->input, dev->board.ir_codes,
 				NULL, MODULE_NAME);
 	if (err)
 		goto err_out_stop;

drivers/media/video/cx231xx/cx231xx-vbi.h

@@ -41,7 +41,7 @@ extern struct videobuf_queue_ops cx231xx_vbi_qops;
 /* stream functions */
 int cx231xx_init_vbi_isoc(struct cx231xx *dev, int max_packets,
 			  int num_bufs, int max_pkt_size,
-			  int (*isoc_copy) (struct cx231xx *dev,
+			  int (*bulk_copy) (struct cx231xx *dev,
 					    struct urb *urb));
 
 void cx231xx_uninit_vbi_isoc(struct cx231xx *dev);