[media] redrat3: enable carrier reports using wideband receiver
The wideband receiver is a little awkward on the redrat3. Data arrives on a different endpoint, and the learning command must be reissued every time data is learned. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>hifive-unleashed-5.1
Sean Young
Mauro Carvalho Chehab
parent
8a21ec9bb3
commit
c49fcdde38
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@ -81,6 +81,8 @@
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#define RR3_RC_DET_ENABLE 0xbb
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/* Stop capture with the RC receiver */
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#define RR3_RC_DET_DISABLE 0xbc
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/* Start capture with the wideband receiver */
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#define RR3_MODSIG_CAPTURE 0xb2
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/* Return the status of RC detector capture */
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#define RR3_RC_DET_STATUS 0xbd
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/* Reset redrat */
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@ -105,8 +107,10 @@
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#define RR3_CLK_PER_COUNT 12
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/* (RR3_CLK / RR3_CLK_PER_COUNT) */
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#define RR3_CLK_CONV_FACTOR 2000000
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/* USB bulk-in IR data endpoint address */
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#define RR3_BULK_IN_EP_ADDR 0x82
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/* USB bulk-in wideband IR data endpoint address */
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#define RR3_WIDE_IN_EP_ADDR 0x81
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/* USB bulk-in narrowband IR data endpoint address */
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#define RR3_NARROW_IN_EP_ADDR 0x82
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/* Size of the fixed-length portion of the signal */
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#define RR3_DRIVER_MAXLENS 128
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@ -207,15 +211,22 @@ struct redrat3_dev {
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struct urb *flash_urb;
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u8 flash_in_buf;
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/* learning */
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bool wideband;
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struct usb_ctrlrequest learn_control;
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struct urb *learn_urb;
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u8 learn_buf;
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/* save off the usb device pointer */
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struct usb_device *udev;
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/* the receive endpoint */
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struct usb_endpoint_descriptor *ep_in;
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struct usb_endpoint_descriptor *ep_narrow;
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/* the buffer to receive data */
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void *bulk_in_buf;
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/* urb used to read ir data */
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struct urb *read_urb;
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struct urb *narrow_urb;
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struct urb *wide_urb;
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/* the send endpoint */
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struct usb_endpoint_descriptor *ep_out;
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@ -236,23 +247,6 @@ struct redrat3_dev {
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char phys[64];
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};
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/*
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* redrat3_issue_async
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*
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* Issues an async read to the ir data in port..
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* sets the callback to be redrat3_handle_async
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*/
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static void redrat3_issue_async(struct redrat3_dev *rr3)
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{
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int res;
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res = usb_submit_urb(rr3->read_urb, GFP_ATOMIC);
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if (res)
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dev_dbg(rr3->dev,
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"%s: receive request FAILED! (res %d, len %d)\n",
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__func__, res, rr3->read_urb->transfer_buffer_length);
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}
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static void redrat3_dump_fw_error(struct redrat3_dev *rr3, int code)
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{
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if (!rr3->transmitting && (code != 0x40))
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@ -367,6 +361,14 @@ static void redrat3_process_ir_data(struct redrat3_dev *rr3)
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mod_freq = redrat3_val_to_mod_freq(&rr3->irdata);
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dev_dbg(dev, "Got mod_freq of %u\n", mod_freq);
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if (mod_freq && rr3->wideband) {
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DEFINE_IR_RAW_EVENT(ev);
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ev.carrier_report = 1;
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ev.carrier = mod_freq;
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ir_raw_event_store(rr3->rc, &ev);
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}
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/* process each rr3 encoded byte into an int */
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sig_size = be16_to_cpu(rr3->irdata.sig_size);
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@ -449,19 +451,31 @@ static int redrat3_enable_detector(struct redrat3_dev *rr3)
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return -EIO;
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}
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redrat3_issue_async(rr3);
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ret = usb_submit_urb(rr3->narrow_urb, GFP_KERNEL);
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if (ret) {
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dev_err(rr3->dev, "narrow band urb failed: %d", ret);
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return ret;
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}
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return 0;
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ret = usb_submit_urb(rr3->wide_urb, GFP_KERNEL);
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if (ret)
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dev_err(rr3->dev, "wide band urb failed: %d", ret);
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return ret;
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}
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static inline void redrat3_delete(struct redrat3_dev *rr3,
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struct usb_device *udev)
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{
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usb_kill_urb(rr3->read_urb);
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usb_kill_urb(rr3->narrow_urb);
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usb_kill_urb(rr3->wide_urb);
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usb_kill_urb(rr3->flash_urb);
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usb_free_urb(rr3->read_urb);
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usb_kill_urb(rr3->learn_urb);
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usb_free_urb(rr3->narrow_urb);
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usb_free_urb(rr3->wide_urb);
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usb_free_urb(rr3->flash_urb);
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usb_free_coherent(udev, le16_to_cpu(rr3->ep_in->wMaxPacketSize),
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usb_free_urb(rr3->learn_urb);
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usb_free_coherent(udev, le16_to_cpu(rr3->ep_narrow->wMaxPacketSize),
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rr3->bulk_in_buf, rr3->dma_in);
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kfree(rr3);
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@ -694,9 +708,19 @@ static void redrat3_handle_async(struct urb *urb)
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switch (urb->status) {
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case 0:
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ret = redrat3_get_ir_data(rr3, urb->actual_length);
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if (!ret && rr3->wideband && !rr3->learn_urb->hcpriv) {
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ret = usb_submit_urb(rr3->learn_urb, GFP_ATOMIC);
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if (ret)
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dev_err(rr3->dev, "Failed to submit learning urb: %d",
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ret);
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}
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if (!ret) {
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/* no error, prepare to read more */
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redrat3_issue_async(rr3);
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ret = usb_submit_urb(urb, GFP_ATOMIC);
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if (ret)
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dev_err(rr3->dev, "Failed to resubmit urb: %d",
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ret);
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}
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break;
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@ -856,6 +880,42 @@ static void redrat3_brightness_set(struct led_classdev *led_dev, enum
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}
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}
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static int redrat3_wideband_receiver(struct rc_dev *rcdev, int enable)
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{
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struct redrat3_dev *rr3 = rcdev->priv;
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int ret = 0;
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rr3->wideband = enable != 0;
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if (enable) {
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ret = usb_submit_urb(rr3->learn_urb, GFP_KERNEL);
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if (ret)
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dev_err(rr3->dev, "Failed to submit learning urb: %d",
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ret);
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}
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return ret;
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}
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static void redrat3_learn_complete(struct urb *urb)
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{
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struct redrat3_dev *rr3 = urb->context;
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switch (urb->status) {
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case 0:
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break;
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case -ECONNRESET:
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case -ENOENT:
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case -ESHUTDOWN:
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usb_unlink_urb(urb);
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return;
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case -EPIPE:
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default:
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dev_err(rr3->dev, "Error: learn urb status = %d", urb->status);
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break;
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}
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}
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static void redrat3_led_complete(struct urb *urb)
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{
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struct redrat3_dev *rr3 = urb->context;
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@ -908,6 +968,7 @@ static struct rc_dev *redrat3_init_rc_dev(struct redrat3_dev *rr3)
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rc->s_timeout = redrat3_set_timeout;
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rc->tx_ir = redrat3_transmit_ir;
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rc->s_tx_carrier = redrat3_set_tx_carrier;
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rc->s_carrier_report = redrat3_wideband_receiver;
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rc->driver_name = DRIVER_NAME;
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rc->rx_resolution = US_TO_NS(2);
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rc->map_name = RC_MAP_HAUPPAUGE;
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@ -933,7 +994,8 @@ static int redrat3_dev_probe(struct usb_interface *intf,
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struct usb_host_interface *uhi;
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struct redrat3_dev *rr3;
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struct usb_endpoint_descriptor *ep;
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struct usb_endpoint_descriptor *ep_in = NULL;
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struct usb_endpoint_descriptor *ep_narrow = NULL;
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struct usb_endpoint_descriptor *ep_wide = NULL;
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struct usb_endpoint_descriptor *ep_out = NULL;
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u8 addr, attrs;
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int pipe, i;
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@ -947,15 +1009,16 @@ static int redrat3_dev_probe(struct usb_interface *intf,
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addr = ep->bEndpointAddress;
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attrs = ep->bmAttributes;
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if ((ep_in == NULL) &&
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((addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) &&
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if (((addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) &&
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((attrs & USB_ENDPOINT_XFERTYPE_MASK) ==
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USB_ENDPOINT_XFER_BULK)) {
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dev_dbg(dev, "found bulk-in endpoint at 0x%02x\n",
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ep->bEndpointAddress);
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/* data comes in on 0x82, 0x81 is for other data... */
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if (ep->bEndpointAddress == RR3_BULK_IN_EP_ADDR)
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ep_in = ep;
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/* data comes in on 0x82, 0x81 is for learning */
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if (ep->bEndpointAddress == RR3_NARROW_IN_EP_ADDR)
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ep_narrow = ep;
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if (ep->bEndpointAddress == RR3_WIDE_IN_EP_ADDR)
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ep_wide = ep;
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}
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if ((ep_out == NULL) &&
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@ -968,8 +1031,8 @@ static int redrat3_dev_probe(struct usb_interface *intf,
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}
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}
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if (!ep_in || !ep_out) {
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dev_err(dev, "Couldn't find both in and out endpoints\n");
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if (!ep_narrow || !ep_out || !ep_wide) {
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dev_err(dev, "Couldn't find all endpoints\n");
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retval = -ENODEV;
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goto no_endpoints;
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}
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@ -980,25 +1043,38 @@ static int redrat3_dev_probe(struct usb_interface *intf,
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goto no_endpoints;
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rr3->dev = &intf->dev;
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rr3->ep_in = ep_in;
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rr3->ep_narrow = ep_narrow;
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rr3->ep_out = ep_out;
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rr3->udev = udev;
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/* set up bulk-in endpoint */
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rr3->read_urb = usb_alloc_urb(0, GFP_KERNEL);
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if (!rr3->read_urb)
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rr3->narrow_urb = usb_alloc_urb(0, GFP_KERNEL);
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if (!rr3->narrow_urb)
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goto redrat_free;
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rr3->wide_urb = usb_alloc_urb(0, GFP_KERNEL);
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if (!rr3->wide_urb)
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goto redrat_free;
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rr3->bulk_in_buf = usb_alloc_coherent(udev,
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le16_to_cpu(ep_in->wMaxPacketSize), GFP_KERNEL, &rr3->dma_in);
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le16_to_cpu(ep_narrow->wMaxPacketSize),
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GFP_KERNEL, &rr3->dma_in);
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if (!rr3->bulk_in_buf)
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goto redrat_free;
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pipe = usb_rcvbulkpipe(udev, ep_in->bEndpointAddress);
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usb_fill_bulk_urb(rr3->read_urb, udev, pipe, rr3->bulk_in_buf,
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le16_to_cpu(ep_in->wMaxPacketSize), redrat3_handle_async, rr3);
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rr3->read_urb->transfer_dma = rr3->dma_in;
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rr3->read_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
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pipe = usb_rcvbulkpipe(udev, ep_narrow->bEndpointAddress);
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usb_fill_bulk_urb(rr3->narrow_urb, udev, pipe, rr3->bulk_in_buf,
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le16_to_cpu(ep_narrow->wMaxPacketSize),
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redrat3_handle_async, rr3);
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rr3->narrow_urb->transfer_dma = rr3->dma_in;
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rr3->narrow_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
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pipe = usb_rcvbulkpipe(udev, ep_wide->bEndpointAddress);
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usb_fill_bulk_urb(rr3->wide_urb, udev, pipe, rr3->bulk_in_buf,
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le16_to_cpu(ep_narrow->wMaxPacketSize),
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redrat3_handle_async, rr3);
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rr3->wide_urb->transfer_dma = rr3->dma_in;
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rr3->wide_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
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redrat3_reset(rr3);
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redrat3_get_firmware_rev(rr3);
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@ -1011,6 +1087,21 @@ static int redrat3_dev_probe(struct usb_interface *intf,
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if (!rr3->flash_urb)
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goto redrat_free;
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/* learn urb */
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rr3->learn_urb = usb_alloc_urb(0, GFP_KERNEL);
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if (!rr3->learn_urb)
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goto redrat_free;
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/* setup packet is 'c0 b2 0000 0000 0001' */
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rr3->learn_control.bRequestType = 0xc0;
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rr3->learn_control.bRequest = RR3_MODSIG_CAPTURE;
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rr3->learn_control.wLength = cpu_to_le16(1);
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usb_fill_control_urb(rr3->learn_urb, udev, usb_rcvctrlpipe(udev, 0),
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(unsigned char *)&rr3->learn_control,
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&rr3->learn_buf, sizeof(rr3->learn_buf),
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redrat3_learn_complete, rr3);
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/* setup packet is 'c0 b9 0000 0000 0001' */
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rr3->flash_control.bRequestType = 0xc0;
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rr3->flash_control.bRequest = RR3_BLINK_LED;
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@ -1070,7 +1161,8 @@ static int redrat3_dev_suspend(struct usb_interface *intf, pm_message_t message)
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struct redrat3_dev *rr3 = usb_get_intfdata(intf);
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led_classdev_suspend(&rr3->led);
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usb_kill_urb(rr3->read_urb);
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usb_kill_urb(rr3->narrow_urb);
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usb_kill_urb(rr3->wide_urb);
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usb_kill_urb(rr3->flash_urb);
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return 0;
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}
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@ -1079,7 +1171,9 @@ static int redrat3_dev_resume(struct usb_interface *intf)
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{
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struct redrat3_dev *rr3 = usb_get_intfdata(intf);
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if (usb_submit_urb(rr3->read_urb, GFP_ATOMIC))
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if (usb_submit_urb(rr3->narrow_urb, GFP_ATOMIC))
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return -EIO;
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if (usb_submit_urb(rr3->wide_urb, GFP_ATOMIC))
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return -EIO;
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led_classdev_resume(&rr3->led);
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return 0;
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