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authorLinus Torvalds <torvalds@linux-foundation.org>2013-02-24 17:35:10 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-24 17:35:10 -0800
commit21fbd5809ad126b949206d78e0a0e07ec872ea11 (patch)
treea824045df99fc1f0690095a925cceb50207e332b /drivers/media/rc/winbond-cir.c
parentd9978ec5680059d727b39d6c706777c6973587f2 (diff)
parented72d37a33fdf43dc47787fe220532cdec9da528 (diff)
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab: - Some cleanups at V4L2 documentation - new drivers: ts2020 frontend, ov9650 sensor, s5c73m3 sensor, sh-mobile veu mem2mem driver, radio-ma901, davinci_vpfe staging driver - Lots of missing MAINTAINERS entries added - several em28xx driver improvements, including its conversion to videobuf2 - several fixups on drivers to make them to better comply with the API - DVB core: add support for DVBv5 stats, allowing the implementation of statistics for new standards like ISDB - mb86a20s: add statistics to the driver - lots of new board additions, cleanups, and driver improvements. * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (596 commits) [media] media: Add 0x3009 USB PID to ttusb2 driver (fixed diff) [media] rtl28xxu: Add USB IDs for Compro VideoMate U620F [media] em28xx: add usb id for terratec h5 rev. 3 [media] media: rc: gpio-ir-recv: add support for device tree parsing [media] mceusb: move check earlier to make smatch happy [media] radio-si470x doc: add info about v4l2-ctl and sox+alsa [media] staging: media: Remove unnecessary OOM messages [media] sh_vou: Use vou_dev instead of vou_file wherever possible [media] sh_vou: Use video_drvdata() [media] drivers/media/platform/soc_camera/pxa_camera.c: use devm_ functions [media] mt9t112: mt9t111 format set up differs from mt9t112 [media] sh-mobile-ceu-camera: fix SHARPNESS control default Revert "[media] fc0011: Return early, if the frequency is already tuned" [media] cx18/ivtv: fix regression: remove __init from a non-init function [media] em28xx: fix analog streaming with USB bulk transfers [media] stv0900: remove unnecessary null pointer check [media] fc0011: Return early, if the frequency is already tuned [media] fc0011: Add some sanity checks and cleanups [media] fc0011: Fix xin value clamping Revert "[media] [PATH,1/2] mxl5007 move reset to attach" ...
Diffstat (limited to 'drivers/media/rc/winbond-cir.c')
-rw-r--r--drivers/media/rc/winbond-cir.c41
1 files changed, 26 insertions, 15 deletions
diff --git a/drivers/media/rc/winbond-cir.c b/drivers/media/rc/winbond-cir.c
index 930c6149903..535a18dccbd 100644
--- a/drivers/media/rc/winbond-cir.c
+++ b/drivers/media/rc/winbond-cir.c
@@ -154,6 +154,8 @@
#define WBCIR_CNTR_R 0x02
/* Invert TX */
#define WBCIR_IRTX_INV 0x04
+/* Receiver oversampling */
+#define WBCIR_RX_T_OV 0x40
/* Valid banks for the SP3 UART */
enum wbcir_bank {
@@ -394,7 +396,8 @@ wbcir_irq_rx(struct wbcir_data *data, struct pnp_dev *device)
if (data->rxstate == WBCIR_RXSTATE_ERROR)
continue;
- duration = ((irdata & 0x7F) + 1) * 2;
+ duration = ((irdata & 0x7F) + 1) *
+ (data->carrier_report_enabled ? 2 : 10);
rawir.pulse = irdata & 0x80 ? false : true;
rawir.duration = US_TO_NS(duration);
@@ -550,6 +553,17 @@ wbcir_set_carrier_report(struct rc_dev *dev, int enable)
wbcir_set_bits(data->ebase + WBCIR_REG_ECEIR_CCTL,
WBCIR_CNTR_EN, WBCIR_CNTR_EN | WBCIR_CNTR_R);
+ /* Set a higher sampling resolution if carrier reports are enabled */
+ wbcir_select_bank(data, WBCIR_BANK_2);
+ data->dev->rx_resolution = US_TO_NS(enable ? 2 : 10);
+ outb(enable ? 0x03 : 0x0f, data->sbase + WBCIR_REG_SP3_BGDL);
+ outb(0x00, data->sbase + WBCIR_REG_SP3_BGDH);
+
+ /* Enable oversampling if carrier reports are enabled */
+ wbcir_select_bank(data, WBCIR_BANK_7);
+ wbcir_set_bits(data->sbase + WBCIR_REG_SP3_RCCFG,
+ enable ? WBCIR_RX_T_OV : 0, WBCIR_RX_T_OV);
+
data->carrier_report_enabled = enable;
spin_unlock_irqrestore(&data->spinlock, flags);
@@ -931,8 +945,8 @@ wbcir_init_hw(struct wbcir_data *data)
/* prescaler 1.0, tx/rx fifo lvl 16 */
outb(0x30, data->sbase + WBCIR_REG_SP3_EXCR2);
- /* Set baud divisor to sample every 2 ns */
- outb(0x03, data->sbase + WBCIR_REG_SP3_BGDL);
+ /* Set baud divisor to sample every 10 us */
+ outb(0x0f, data->sbase + WBCIR_REG_SP3_BGDL);
outb(0x00, data->sbase + WBCIR_REG_SP3_BGDH);
/* Set CEIR mode */
@@ -941,12 +955,9 @@ wbcir_init_hw(struct wbcir_data *data)
inb(data->sbase + WBCIR_REG_SP3_LSR); /* Clear LSR */
inb(data->sbase + WBCIR_REG_SP3_MSR); /* Clear MSR */
- /*
- * Disable RX demod, enable run-length enc/dec, set freq span and
- * enable over-sampling
- */
+ /* Disable RX demod, enable run-length enc/dec, set freq span */
wbcir_select_bank(data, WBCIR_BANK_7);
- outb(0xd0, data->sbase + WBCIR_REG_SP3_RCCFG);
+ outb(0x90, data->sbase + WBCIR_REG_SP3_RCCFG);
/* Disable timer */
wbcir_select_bank(data, WBCIR_BANK_4);
@@ -1093,11 +1104,15 @@ wbcir_probe(struct pnp_dev *device, const struct pnp_device_id *dev_id)
data->dev->rx_resolution = US_TO_NS(2);
data->dev->allowed_protos = RC_BIT_ALL;
+ err = rc_register_device(data->dev);
+ if (err)
+ goto exit_free_rc;
+
if (!request_region(data->wbase, WAKEUP_IOMEM_LEN, DRVNAME)) {
dev_err(dev, "Region 0x%lx-0x%lx already in use!\n",
data->wbase, data->wbase + WAKEUP_IOMEM_LEN - 1);
err = -EBUSY;
- goto exit_free_rc;
+ goto exit_unregister_device;
}
if (!request_region(data->ebase, EHFUNC_IOMEM_LEN, DRVNAME)) {
@@ -1122,24 +1137,20 @@ wbcir_probe(struct pnp_dev *device, const struct pnp_device_id *dev_id)
goto exit_release_sbase;
}
- err = rc_register_device(data->dev);
- if (err)
- goto exit_free_irq;
-
device_init_wakeup(&device->dev, 1);
wbcir_init_hw(data);
return 0;
-exit_free_irq:
- free_irq(data->irq, device);
exit_release_sbase:
release_region(data->sbase, SP_IOMEM_LEN);
exit_release_ebase:
release_region(data->ebase, EHFUNC_IOMEM_LEN);
exit_release_wbase:
release_region(data->wbase, WAKEUP_IOMEM_LEN);
+exit_unregister_device:
+ rc_unregister_device(data->dev);
exit_free_rc:
rc_free_device(data->dev);
exit_unregister_led: