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 <s...@mess.org>
---
drivers/media/rc/redrat3.c | 186 ++++++++++++++++++++++++++++++++++-----------
1 file changed, 140 insertions(+), 46 deletions(-)
diff --git a/drivers/media/rc/redrat3.c b/drivers/media/rc/redrat3.c
index eaf374d..1882712 100644
--- a/drivers/media/rc/redrat3.c
+++ b/drivers/media/rc/redrat3.c
@@ -81,6 +81,8 @@
#define RR3_RC_DET_ENABLE 0xbb
/* Stop capture with the RC receiver */
#define RR3_RC_DET_DISABLE 0xbc
+/* Start capture with the wideband receiver */
+#define RR3_MODSIG_CAPTURE 0xb2
/* Return the status of RC detector capture */
#define RR3_RC_DET_STATUS 0xbd
/* Reset redrat */
@@ -105,8 +107,10 @@
#define RR3_CLK_PER_COUNT 12
/* (RR3_CLK / RR3_CLK_PER_COUNT) */
#define RR3_CLK_CONV_FACTOR 2000000
-/* USB bulk-in IR data endpoint address */
-#define RR3_BULK_IN_EP_ADDR 0x82
+/* USB bulk-in wideband IR data endpoint address */
+#define RR3_WIDE_IN_EP_ADDR 0x81
+/* USB bulk-in narrowband IR data endpoint address */
+#define RR3_NARROW_IN_EP_ADDR 0x82
/* Size of the fixed-length portion of the signal */
#define RR3_DRIVER_MAXLENS 128
@@ -207,15 +211,22 @@ struct redrat3_dev {
struct urb *flash_urb;
u8 flash_in_buf;
+ /* learning */
+ bool wideband;
+ struct usb_ctrlrequest learn_control;
+ struct urb *learn_urb;
+ u8 learn_buf;
+
/* save off the usb device pointer */
struct usb_device *udev;
/* the receive endpoint */
- struct usb_endpoint_descriptor *ep_in;
+ struct usb_endpoint_descriptor *ep_narrow;
/* the buffer to receive data */
void *bulk_in_buf;
/* urb used to read ir data */
- struct urb *read_urb;
+ struct urb *narrow_urb;
+ struct urb *wide_urb;
/* the send endpoint */
struct usb_endpoint_descriptor *ep_out;
@@ -236,23 +247,6 @@ struct redrat3_dev {
char phys[64];
};
-/*
- * redrat3_issue_async
- *
- * Issues an async read to the ir data in port..
- * sets the callback to be redrat3_handle_async
- */
-static void redrat3_issue_async(struct redrat3_dev *rr3)
-{
- int res;
-
- res = usb_submit_urb(rr3->read_urb, GFP_ATOMIC);
- if (res)
- dev_dbg(rr3->dev,
- "%s: receive request FAILED! (res %d, len %d)\n",
- __func__, res, rr3->read_urb->transfer_buffer_length);
-}
-
static void redrat3_dump_fw_error(struct redrat3_dev *rr3, int code)
{
if (!rr3->transmitting && (code != 0x40))
@@ -367,6 +361,14 @@ static void redrat3_process_ir_data(struct redrat3_dev
*rr3)
mod_freq = redrat3_val_to_mod_freq(&rr3->irdata);
dev_dbg(dev, "Got mod_freq of %u\n", mod_freq);
+ if (mod_freq && rr3->wideband) {
+ DEFINE_IR_RAW_EVENT(ev);
+
+ ev.carrier_report = 1;
+ ev.carrier = mod_freq;
+
+ ir_raw_event_store(rr3->rc, &ev);
+ }
/* process each rr3 encoded byte into an int */
sig_size = be16_to_cpu(rr3->irdata.sig_size);
@@ -449,19 +451,31 @@ static int redrat3_enable_detector(struct redrat3_dev
*rr3)
return -EIO;
}
- redrat3_issue_async(rr3);
+ ret = usb_submit_urb(rr3->narrow_urb, GFP_KERNEL);
+ if (ret) {
+ dev_err(rr3->dev, "narrow band urb failed: %d", ret);
+ return ret;
+ }
- return 0;
+ ret = usb_submit_urb(rr3->wide_urb, GFP_KERNEL);
+ if (ret)
+ dev_err(rr3->dev, "wide band urb failed: %d", ret);
+
+ return ret;
}
static inline void redrat3_delete(struct redrat3_dev *rr3,
struct usb_device *udev)
{
- usb_kill_urb(rr3->read_urb);
+ usb_kill_urb(rr3->narrow_urb);
+ usb_kill_urb(rr3->wide_urb);
usb_kill_urb(rr3->flash_urb);
- usb_free_urb(rr3->read_urb);
+ usb_kill_urb(rr3->learn_urb);
+ usb_free_urb(rr3->narrow_urb);
+ usb_free_urb(rr3->wide_urb);
usb_free_urb(rr3->flash_urb);
- usb_free_coherent(udev, le16_to_cpu(rr3->ep_in->wMaxPacketSize),
+ usb_free_urb(rr3->learn_urb);
+ usb_free_coherent(udev, le16_to_cpu(rr3->ep_narrow->wMaxPacketSize),
rr3->bulk_in_buf, rr3->dma_in);
kfree(rr3);
@@ -694,9 +708,19 @@ static void redrat3_handle_async(struct urb *urb)
switch (urb->status) {
case 0:
ret = redrat3_get_ir_data(rr3, urb->actual_length);
+ if (!ret && rr3->wideband && !rr3->learn_urb->hcpriv) {
+ ret = usb_submit_urb(rr3->learn_urb, GFP_ATOMIC);
+ if (ret)
+ dev_err(rr3->dev, "Failed to submit learning
urb: %d",
+ ret);
+ }
+
if (!ret) {
/* no error, prepare to read more */
- redrat3_issue_async(rr3);
+ ret = usb_submit_urb(urb, GFP_ATOMIC);
+ if (ret)
+ dev_err(rr3->dev, "Failed to resubmit urb: %d",
+ ret);
}
break;
@@ -856,6 +880,42 @@ static void redrat3_brightness_set(struct led_classdev
*led_dev, enum
}
}
+static int redrat3_wideband_receiver(struct rc_dev *rcdev, int enable)
+{
+ struct redrat3_dev *rr3 = rcdev->priv;
+ int ret = 0;
+
+ rr3->wideband = enable != 0;
+
+ if (enable) {
+ ret = usb_submit_urb(rr3->learn_urb, GFP_KERNEL);
+ if (ret)
+ dev_err(rr3->dev, "Failed to submit learning urb: %d",
+ ret);
+ }
+
+ return ret;
+}
+
+static void redrat3_learn_complete(struct urb *urb)
+{
+ struct redrat3_dev *rr3 = urb->context;
+
+ switch (urb->status) {
+ case 0:
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ usb_unlink_urb(urb);
+ return;
+ case -EPIPE:
+ default:
+ dev_err(rr3->dev, "Error: learn urb status = %d", urb->status);
+ break;
+ }
+}
+
static void redrat3_led_complete(struct urb *urb)
{
struct redrat3_dev *rr3 = urb->context;
@@ -910,6 +970,7 @@ static struct rc_dev *redrat3_init_rc_dev(struct
redrat3_dev *rr3)
rc->s_timeout = redrat3_set_timeout;
rc->tx_ir = redrat3_transmit_ir;
rc->s_tx_carrier = redrat3_set_tx_carrier;
+ rc->s_carrier_report = redrat3_wideband_receiver;
rc->driver_name = DRIVER_NAME;
rc->rx_resolution = US_TO_NS(2);
rc->map_name = RC_MAP_HAUPPAUGE;
@@ -935,7 +996,8 @@ static int redrat3_dev_probe(struct usb_interface *intf,
struct usb_host_interface *uhi;
struct redrat3_dev *rr3;
struct usb_endpoint_descriptor *ep;
- struct usb_endpoint_descriptor *ep_in = NULL;
+ struct usb_endpoint_descriptor *ep_narrow = NULL;
+ struct usb_endpoint_descriptor *ep_wide = NULL;
struct usb_endpoint_descriptor *ep_out = NULL;
u8 addr, attrs;
int pipe, i;
@@ -949,15 +1011,16 @@ static int redrat3_dev_probe(struct usb_interface *intf,
addr = ep->bEndpointAddress;
attrs = ep->bmAttributes;
- if ((ep_in == NULL) &&
- ((addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) &&
+ if (((addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) &&
((attrs & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_BULK)) {
dev_dbg(dev, "found bulk-in endpoint at 0x%02x\n",
ep->bEndpointAddress);
- /* data comes in on 0x82, 0x81 is for other data... */
- if (ep->bEndpointAddress == RR3_BULK_IN_EP_ADDR)
- ep_in = ep;
+ /* data comes in on 0x82, 0x81 is for learning */
+ if (ep->bEndpointAddress == RR3_NARROW_IN_EP_ADDR)
+ ep_narrow = ep;
+ if (ep->bEndpointAddress == RR3_WIDE_IN_EP_ADDR)
+ ep_wide = ep;
}
if ((ep_out == NULL) &&
@@ -970,8 +1033,8 @@ static int redrat3_dev_probe(struct usb_interface *intf,
}
}
- if (!ep_in || !ep_out) {
- dev_err(dev, "Couldn't find both in and out endpoints\n");
+ if (!ep_narrow || !ep_out || !ep_wide) {
+ dev_err(dev, "Couldn't find all endpoints\n");
retval = -ENODEV;
goto no_endpoints;
}
@@ -982,25 +1045,38 @@ static int redrat3_dev_probe(struct usb_interface *intf,
goto no_endpoints;
rr3->dev = &intf->dev;
- rr3->ep_in = ep_in;
+ rr3->ep_narrow = ep_narrow;
rr3->ep_out = ep_out;
rr3->udev = udev;
/* set up bulk-in endpoint */
- rr3->read_urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!rr3->read_urb)
+ rr3->narrow_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!rr3->narrow_urb)
+ goto redrat_free;
+
+ rr3->wide_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!rr3->wide_urb)
goto redrat_free;
rr3->bulk_in_buf = usb_alloc_coherent(udev,
- le16_to_cpu(ep_in->wMaxPacketSize), GFP_KERNEL, &rr3->dma_in);
+ le16_to_cpu(ep_narrow->wMaxPacketSize),
+ GFP_KERNEL, &rr3->dma_in);
if (!rr3->bulk_in_buf)
goto redrat_free;
- pipe = usb_rcvbulkpipe(udev, ep_in->bEndpointAddress);
- usb_fill_bulk_urb(rr3->read_urb, udev, pipe, rr3->bulk_in_buf,
- le16_to_cpu(ep_in->wMaxPacketSize), redrat3_handle_async, rr3);
- rr3->read_urb->transfer_dma = rr3->dma_in;
- rr3->read_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+ pipe = usb_rcvbulkpipe(udev, ep_narrow->bEndpointAddress);
+ usb_fill_bulk_urb(rr3->narrow_urb, udev, pipe, rr3->bulk_in_buf,
+ le16_to_cpu(ep_narrow->wMaxPacketSize),
+ redrat3_handle_async, rr3);
+ rr3->narrow_urb->transfer_dma = rr3->dma_in;
+ rr3->narrow_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ pipe = usb_rcvbulkpipe(udev, ep_wide->bEndpointAddress);
+ usb_fill_bulk_urb(rr3->wide_urb, udev, pipe, rr3->bulk_in_buf,
+ le16_to_cpu(ep_narrow->wMaxPacketSize),
+ redrat3_handle_async, rr3);
+ rr3->wide_urb->transfer_dma = rr3->dma_in;
+ rr3->wide_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
redrat3_reset(rr3);
redrat3_get_firmware_rev(rr3);
@@ -1013,6 +1089,21 @@ static int redrat3_dev_probe(struct usb_interface *intf,
if (!rr3->flash_urb)
goto redrat_free;
+ /* learn urb */
+ rr3->learn_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!rr3->learn_urb)
+ goto redrat_free;
+
+ /* setup packet is 'c0 b2 0000 0000 0001' */
+ rr3->learn_control.bRequestType = 0xc0;
+ rr3->learn_control.bRequest = RR3_MODSIG_CAPTURE;
+ rr3->learn_control.wLength = cpu_to_le16(1);
+
+ usb_fill_control_urb(rr3->learn_urb, udev, usb_rcvctrlpipe(udev, 0),
+ (unsigned char *)&rr3->learn_control,
+ &rr3->learn_buf, sizeof(rr3->learn_buf),
+ redrat3_learn_complete, rr3);
+
/* setup packet is 'c0 b9 0000 0000 0001' */
rr3->flash_control.bRequestType = 0xc0;
rr3->flash_control.bRequest = RR3_BLINK_LED;
@@ -1072,7 +1163,8 @@ static int redrat3_dev_suspend(struct usb_interface
*intf, pm_message_t message)
struct redrat3_dev *rr3 = usb_get_intfdata(intf);
led_classdev_suspend(&rr3->led);
- usb_kill_urb(rr3->read_urb);
+ usb_kill_urb(rr3->narrow_urb);
+ usb_kill_urb(rr3->wide_urb);
usb_kill_urb(rr3->flash_urb);
return 0;
}
@@ -1081,7 +1173,9 @@ static int redrat3_dev_resume(struct usb_interface *intf)
{
struct redrat3_dev *rr3 = usb_get_intfdata(intf);
- if (usb_submit_urb(rr3->read_urb, GFP_ATOMIC))
+ if (usb_submit_urb(rr3->narrow_urb, GFP_ATOMIC))
+ return -EIO;
+ if (usb_submit_urb(rr3->wide_urb, GFP_ATOMIC))
return -EIO;
led_classdev_resume(&rr3->led);
return 0;
--
2.7.4
--
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