[media] winbond-cir: increase IR receiver resolution
This is needed for carrier reporting.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/rc/winbond-cir.c b/drivers/media/rc/winbond-cir.c
index 16ba38e..f040bbf 100644
--- a/drivers/media/rc/winbond-cir.c
+++ b/drivers/media/rc/winbond-cir.c
@@ -358,7 +358,7 @@
if (data->rxstate == WBCIR_RXSTATE_ERROR)
continue;
rawir.pulse = irdata & 0x80 ? false : true;
- rawir.duration = US_TO_NS(((irdata & 0x7F) + 1) * 10);
+ rawir.duration = US_TO_NS(((irdata & 0x7F) + 1) * 2);
ir_raw_event_store_with_filter(data->dev, &rawir);
}
@@ -862,8 +862,8 @@
/* prescaler 1.0, tx/rx fifo lvl 16 */
outb(0x30, data->sbase + WBCIR_REG_SP3_EXCR2);
- /* Set baud divisor to sample every 10 us */
- outb(0x0F, data->sbase + WBCIR_REG_SP3_BGDL);
+ /* Set baud divisor to sample every 2 ns */
+ outb(0x03, data->sbase + WBCIR_REG_SP3_BGDL);
outb(0x00, data->sbase + WBCIR_REG_SP3_BGDH);
/* Set CEIR mode */
@@ -872,9 +872,12 @@
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 */
+ /*
+ * Disable RX demod, enable run-length enc/dec, set freq span and
+ * enable over-sampling
+ */
wbcir_select_bank(data, WBCIR_BANK_7);
- outb(0x90, data->sbase + WBCIR_REG_SP3_RCCFG);
+ outb(0xd0, data->sbase + WBCIR_REG_SP3_RCCFG);
/* Disable timer */
wbcir_select_bank(data, WBCIR_BANK_4);
@@ -1017,6 +1020,7 @@
data->dev->priv = data;
data->dev->dev.parent = &device->dev;
data->dev->timeout = MS_TO_NS(100);
+ data->dev->rx_resolution = US_TO_NS(2);
data->dev->allowed_protos = RC_BIT_ALL;
if (!request_region(data->wbase, WAKEUP_IOMEM_LEN, DRVNAME)) {