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[media] rc: fix up and genericize some time unit conversions 

The ene_ir driver was using a private define of MS_TO_NS, which is meant
to be microseconds to nanoseconds. The mceusb driver copied it,
intending to use is a milliseconds to microseconds. Lets move the
defines to a common location, expand and standardize them a touch, so
that we now have:

  MS_TO_NS - milliseconds to nanoseconds
  MS_TO_US - milliseconds to microseconds
  US_TO_NS - microseconds to nanoseconds

Reported-by: David Härdeman <david@hardeman.nu>
CC: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Jarod Wilson 2011-01-06 16:59:36 -03:00 committed by Mauro Carvalho Chehab
parent 9ad77eb57b
commit 5aad724280
4 changed files with 14 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/media/rc/ene_ir.c
View File

@ -446,27 +446,27 @@ static void ene_rx_setup(struct ene_device *dev)
select_timeout:
if (dev->rx_fan_input_inuse) {
dev->rdev->rx_resolution = MS_TO_NS(ENE_FW_SAMPLE_PERIOD_FAN);
dev->rdev->rx_resolution = US_TO_NS(ENE_FW_SAMPLE_PERIOD_FAN);
/* Fan input doesn't support timeouts, it just ends the
input with a maximum sample */
dev->rdev->min_timeout = dev->rdev->max_timeout =
MS_TO_NS(ENE_FW_SMPL_BUF_FAN_MSK *
US_TO_NS(ENE_FW_SMPL_BUF_FAN_MSK *
ENE_FW_SAMPLE_PERIOD_FAN);
} else {
dev->rdev->rx_resolution = MS_TO_NS(sample_period);
dev->rdev->rx_resolution = US_TO_NS(sample_period);
/* Theoreticly timeout is unlimited, but we cap it
* because it was seen that on one device, it
* would stop sending spaces after around 250 msec.
* Besides, this is close to 2^32 anyway and timeout is u32.
*/
dev->rdev->min_timeout = MS_TO_NS(127 * sample_period);
dev->rdev->max_timeout = MS_TO_NS(200000);
dev->rdev->min_timeout = US_TO_NS(127 * sample_period);
dev->rdev->max_timeout = US_TO_NS(200000);
}
if (dev->hw_learning_and_tx_capable)
dev->rdev->tx_resolution = MS_TO_NS(sample_period);
dev->rdev->tx_resolution = US_TO_NS(sample_period);
if (dev->rdev->timeout > dev->rdev->max_timeout)
dev->rdev->timeout = dev->rdev->max_timeout;
@ -801,7 +801,7 @@ static irqreturn_t ene_isr(int irq, void *data)
dbg("RX: %d (%s)", hw_sample, pulse ? "pulse" : "space");
ev.duration = MS_TO_NS(hw_sample);
ev.duration = US_TO_NS(hw_sample);
ev.pulse = pulse;
ir_raw_event_store_with_filter(dev->rdev, &ev);
}
@ -821,7 +821,7 @@ static void ene_setup_default_settings(struct ene_device *dev)
dev->learning_mode_enabled = learning_mode_force;
/* Set reasonable default timeout */
dev->rdev->timeout = MS_TO_NS(150000);
dev->rdev->timeout = US_TO_NS(150000);
}
/* Upload all hardware settings at once. Used at load and resume time */

2
drivers/media/rc/ene_ir.h
View File

@ -201,8 +201,6 @@
#define dbg_verbose(format, ...) __dbg(2, format, ## __VA_ARGS__)
#define dbg_regs(format, ...) __dbg(3, format, ## __VA_ARGS__)
#define MS_TO_NS(msec) ((msec) * 1000)
struct ene_device {
struct pnp_dev *pnp_dev;
struct rc_dev *rdev;

7
drivers/media/rc/mceusb.c
View File

@ -48,7 +48,6 @@
#define USB_BUFLEN 32 /* USB reception buffer length */
#define USB_CTRL_MSG_SZ 2 /* Size of usb ctrl msg on gen1 hw */
#define MCE_G1_INIT_MSGS 40 /* Init messages on gen1 hw to throw out */
#define MS_TO_NS(msec) ((msec) * 1000)
/* MCE constants */
#define MCE_CMDBUF_SIZE 384 /* MCE Command buffer length */
@ -817,7 +816,7 @@ static void mceusb_handle_command(struct mceusb_dev *ir, int index)
switch (ir->buf_in[index]) {
/* 2-byte return value commands */
case MCE_CMD_S_TIMEOUT:
ir->rc->timeout = MS_TO_NS((hi << 8 | lo) / 2);
ir->rc->timeout = MS_TO_US((hi << 8 | lo) / 2);
break;
/* 1-byte return value commands */
@ -858,7 +857,7 @@ static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)
ir->rem--;
rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0);
rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK)
* MS_TO_NS(MCE_TIME_UNIT);
* MS_TO_US(MCE_TIME_UNIT);
dev_dbg(ir->dev, "Storing %s with duration %d\n",
rawir.pulse ? "pulse" : "space",
@ -1061,7 +1060,7 @@ static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir)
rc->priv = ir;
rc->driver_type = RC_DRIVER_IR_RAW;
rc->allowed_protos = RC_TYPE_ALL;
rc->timeout = MS_TO_NS(1000);
rc->timeout = MS_TO_US(1000);
if (!ir->flags.no_tx) {
rc->s_tx_mask = mceusb_set_tx_mask;
rc->s_tx_carrier = mceusb_set_tx_carrier;

3
include/media/rc-core.h
View File

@ -183,6 +183,9 @@ static inline void init_ir_raw_event(struct ir_raw_event *ev)
}
#define IR_MAX_DURATION 0xFFFFFFFF /* a bit more than 4 seconds */
#define US_TO_NS(usec) ((usec) * 1000)
#define MS_TO_US(msec) ((msec) * 1000)
#define MS_TO_NS(msec) ((msec) * 1000 * 1000)
void ir_raw_event_handle(struct rc_dev *dev);
int ir_raw_event_store(struct rc_dev *dev, struct ir_raw_event *ev);