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author | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-05-21 17:40:25 -0300 |
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committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-05-25 17:44:19 -0300 |
commit | c4018fa2e4c0b669944c2e5cb9eda96fe786d0a1 (patch) | |
tree | f18dc56fc829d19f5bf1ac84649ccb0f4b08d778 /drivers | |
parent | 444f8bda81a35ae7b1e7558e971b2dbc397d3ca9 (diff) | |
download | op-kernel-dev-c4018fa2e4c0b669944c2e5cb9eda96fe786d0a1.zip op-kernel-dev-c4018fa2e4c0b669944c2e5cb9eda96fe786d0a1.tar.gz |
[media] dib0700: fix RC support on Hauppauge Nova-TD
The RC support o Nova-TD is broken, as the RC endpoint there
is an interrupt endpoint.
That produces an ugly calltrace at the Kernel logs:
WARNING: CPU: 2 PID: 56 at drivers/usb/core/urb.c:450 usb_submit_urb+0x1fd/0x5c0()
usb 1-1.2: BOGUS urb xfer, pipe 3 != type 1
Modules linked in: rc_dib0700_rc5(OF) dvb_usb_dib0700(OF) dib9000(OF) dib8000(OF) dib7000m(OF) dib0090(OF) dib0070(OF) dib7000p(OF) dib3000mc(OF) dibx000_common(OF) dvb_usb(OF) rc_core(OF) snd_usb_audio snd_usbmidi_lib snd_hwdep snd_rawmidi snd_seq snd_seq_device snd_pcm snd_timer snd soundcore bnep bluetooth 6lowpan_iphc rfkill au0828(OF) xc5000(OF) au8522_dig(OF) au8522_common(OF) tveeprom(OF) dvb_core(OF) nouveau i915 mxm_wmi ttm i2c_algo_bit drm_kms_helper drm r8169 mii i2c_core video wmi [last unloaded: au0828]
CPU: 2 PID: 56 Comm: khubd Tainted: GF O 3.14.2-200.fc20.x86_64 #1
Hardware name: SAMSUNG ELECTRONICS CO., LTD. 550P5C/550P7C/SAMSUNG_NP1234567890, BIOS P05ABI.016.130917.dg 09/17/2013
0000000000000000 00000000610866bc ffff880223703860 ffffffff816eec92
ffff8802237038a8 ffff880223703898 ffffffff8108a1bd ffff8800916a2180
ffff8801d5b16000 0000000000000003 0000000000000003 0000000000000020
Call Trace:
[<ffffffff816eec92>] dump_stack+0x45/0x56
[<ffffffff8108a1bd>] warn_slowpath_common+0x7d/0xa0
[<ffffffff8108a23c>] warn_slowpath_fmt+0x5c/0x80
[<ffffffff814e3ebd>] usb_submit_urb+0x1fd/0x5c0
[<ffffffffa0445925>] dib0700_rc_setup+0xb5/0x120 [dvb_usb_dib0700]
[<ffffffffa0445a58>] dib0700_probe+0xc8/0x130 [dvb_usb_dib0700]
...
Fix it by detecting if the endpoint is bulk or interrupt.
Tested with both Hauppauge Nova-TD model 52009 (interrupt) and with a
Prolink Pixelview SBTVD model PV-D231U (bulk).
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/media/usb/dvb-usb/dib0700.h | 2 | ||||
-rw-r--r-- | drivers/media/usb/dvb-usb/dib0700_core.c | 43 | ||||
-rw-r--r-- | drivers/media/usb/dvb-usb/dib0700_devices.c | 2 |
3 files changed, 38 insertions, 9 deletions
diff --git a/drivers/media/usb/dvb-usb/dib0700.h b/drivers/media/usb/dvb-usb/dib0700.h index 637b612..927617d 100644 --- a/drivers/media/usb/dvb-usb/dib0700.h +++ b/drivers/media/usb/dvb-usb/dib0700.h @@ -59,7 +59,7 @@ extern int dib0700_set_gpio(struct dvb_usb_device *, enum dib07x0_gpios gpio, u8 extern int dib0700_ctrl_clock(struct dvb_usb_device *d, u32 clk_MHz, u8 clock_out_gp3); extern int dib0700_ctrl_rd(struct dvb_usb_device *d, u8 *tx, u8 txlen, u8 *rx, u8 rxlen); extern int dib0700_download_firmware(struct usb_device *udev, const struct firmware *fw); -extern int dib0700_rc_setup(struct dvb_usb_device *d); +extern int dib0700_rc_setup(struct dvb_usb_device *d, struct usb_interface *intf); extern int dib0700_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff); extern struct i2c_algorithm dib0700_i2c_algo; extern int dib0700_identify_state(struct usb_device *udev, struct dvb_usb_device_properties *props, diff --git a/drivers/media/usb/dvb-usb/dib0700_core.c b/drivers/media/usb/dvb-usb/dib0700_core.c index bf2a908..c14285f 100644 --- a/drivers/media/usb/dvb-usb/dib0700_core.c +++ b/drivers/media/usb/dvb-usb/dib0700_core.c @@ -754,17 +754,20 @@ resubmit: usb_submit_urb(purb, GFP_ATOMIC); } -int dib0700_rc_setup(struct dvb_usb_device *d) +int dib0700_rc_setup(struct dvb_usb_device *d, struct usb_interface *intf) { struct dib0700_state *st = d->priv; struct urb *purb; - int ret; + const struct usb_endpoint_descriptor *e; + int ret, rc_ep = 1; + unsigned int pipe = 0; /* Poll-based. Don't initialize bulk mode */ - if (st->fw_version < 0x10200) + if (st->fw_version < 0x10200 || !intf) return 0; /* Starting in firmware 1.20, the RC info is provided on a bulk pipe */ + purb = usb_alloc_urb(0, GFP_KERNEL); if (purb == NULL) { err("rc usb alloc urb failed"); @@ -779,9 +782,35 @@ int dib0700_rc_setup(struct dvb_usb_device *d) } purb->status = -EINPROGRESS; - usb_fill_bulk_urb(purb, d->udev, usb_rcvbulkpipe(d->udev, 1), - purb->transfer_buffer, RC_MSG_SIZE_V1_20, - dib0700_rc_urb_completion, d); + + /* + * Some devices like the Hauppauge NovaTD model 52009 use an interrupt + * endpoint, while others use a bulk one. + */ + e = &intf->altsetting[0].endpoint[rc_ep].desc; + if (usb_endpoint_dir_in(e)) { + if (usb_endpoint_xfer_bulk(e)) { + pipe = usb_rcvbulkpipe(d->udev, rc_ep); + usb_fill_bulk_urb(purb, d->udev, pipe, + purb->transfer_buffer, + RC_MSG_SIZE_V1_20, + dib0700_rc_urb_completion, d); + + } else if (usb_endpoint_xfer_int(e)) { + pipe = usb_rcvintpipe(d->udev, rc_ep); + usb_fill_int_urb(purb, d->udev, pipe, + purb->transfer_buffer, + RC_MSG_SIZE_V1_20, + dib0700_rc_urb_completion, d, 1); + } + } + + if (!pipe) { + err("There's no endpoint for remote controller"); + kfree(purb->transfer_buffer); + usb_free_urb(purb); + return 0; + } ret = usb_submit_urb(purb, GFP_ATOMIC); if (ret) { @@ -820,7 +849,7 @@ static int dib0700_probe(struct usb_interface *intf, else dev->props.rc.core.bulk_mode = false; - dib0700_rc_setup(dev); + dib0700_rc_setup(dev, intf); return 0; } diff --git a/drivers/media/usb/dvb-usb/dib0700_devices.c b/drivers/media/usb/dvb-usb/dib0700_devices.c index 829323e..10e0db8 100644 --- a/drivers/media/usb/dvb-usb/dib0700_devices.c +++ b/drivers/media/usb/dvb-usb/dib0700_devices.c @@ -514,7 +514,7 @@ static int dib0700_rc_query_old_firmware(struct dvb_usb_device *d) /* info("%d: %2X %2X %2X %2X",dvb_usb_dib0700_ir_proto,(int)key[3-2],(int)key[3-3],(int)key[3-1],(int)key[3]); */ - dib0700_rc_setup(d); /* reset ir sensor data to prevent false events */ + dib0700_rc_setup(d, NULL); /* reset ir sensor data to prevent false events */ d->last_event = 0; switch (d->props.rc.core.protocol) { |