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path: root/drivers/media/dvb-core/dvb_frontend.c
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Diffstat (limited to 'drivers/media/dvb-core/dvb_frontend.c')
-rw-r--r--drivers/media/dvb-core/dvb_frontend.c78
1 files changed, 35 insertions, 43 deletions
diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c
index 882ca417f328..842b9c8f80c6 100644
--- a/drivers/media/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb-core/dvb_frontend.c
@@ -40,6 +40,7 @@
#include <linux/freezer.h>
#include <linux/jiffies.h>
#include <linux/kthread.h>
+#include <linux/ktime.h>
#include <asm/processor.h>
#include "dvb_frontend.h"
@@ -110,7 +111,7 @@ struct dvb_frontend_private {
struct task_struct *thread;
unsigned long release_jiffies;
unsigned int wakeup;
- fe_status_t status;
+ enum fe_status status;
unsigned long tune_mode_flags;
unsigned int delay;
unsigned int reinitialise;
@@ -198,7 +199,8 @@ static enum dvbv3_emulation_type dvbv3_type(u32 delivery_system)
}
}
-static void dvb_frontend_add_event(struct dvb_frontend *fe, fe_status_t status)
+static void dvb_frontend_add_event(struct dvb_frontend *fe,
+ enum fe_status status)
{
struct dvb_frontend_private *fepriv = fe->frontend_priv;
struct dvb_fe_events *events = &fepriv->events;
@@ -429,7 +431,7 @@ static int dvb_frontend_swzigzag_autotune(struct dvb_frontend *fe, int check_wra
static void dvb_frontend_swzigzag(struct dvb_frontend *fe)
{
- fe_status_t s = 0;
+ enum fe_status s = 0;
int retval = 0;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp;
@@ -690,7 +692,7 @@ static int dvb_frontend_thread(void *data)
{
struct dvb_frontend *fe = data;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
- fe_status_t s;
+ enum fe_status s;
enum dvbfe_algo algo;
#ifdef CONFIG_MEDIA_CONTROLLER_DVB
int ret;
@@ -889,42 +891,21 @@ static void dvb_frontend_stop(struct dvb_frontend *fe)
fepriv->thread);
}
-s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime)
-{
- return ((curtime.tv_usec < lasttime.tv_usec) ?
- 1000000 - lasttime.tv_usec + curtime.tv_usec :
- curtime.tv_usec - lasttime.tv_usec);
-}
-EXPORT_SYMBOL(timeval_usec_diff);
-
-static inline void timeval_usec_add(struct timeval *curtime, u32 add_usec)
-{
- curtime->tv_usec += add_usec;
- if (curtime->tv_usec >= 1000000) {
- curtime->tv_usec -= 1000000;
- curtime->tv_sec++;
- }
-}
-
/*
* Sleep until gettimeofday() > waketime + add_usec
* This needs to be as precise as possible, but as the delay is
* usually between 2ms and 32ms, it is done using a scheduled msleep
* followed by usleep (normally a busy-wait loop) for the remainder
*/
-void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec)
+void dvb_frontend_sleep_until(ktime_t *waketime, u32 add_usec)
{
- struct timeval lasttime;
s32 delta, newdelta;
- timeval_usec_add(waketime, add_usec);
-
- do_gettimeofday(&lasttime);
- delta = timeval_usec_diff(lasttime, *waketime);
+ ktime_add_us(*waketime, add_usec);
+ delta = ktime_us_delta(ktime_get_real(), *waketime);
if (delta > 2500) {
msleep((delta - 1500) / 1000);
- do_gettimeofday(&lasttime);
- newdelta = timeval_usec_diff(lasttime, *waketime);
+ newdelta = ktime_us_delta(ktime_get_real(), *waketime);
delta = (newdelta > delta) ? 0 : newdelta;
}
if (delta > 0)
@@ -2216,7 +2197,7 @@ static int dtv_set_frontend(struct dvb_frontend *fe)
break;
}
if (rolloff)
- c->bandwidth_hz = (c->symbol_rate * rolloff) / 100;
+ c->bandwidth_hz = mult_frac(c->symbol_rate, rolloff, 100);
/* force auto frequency inversion if requested */
if (dvb_force_auto_inversion)
@@ -2341,7 +2322,7 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
}
case FE_READ_STATUS: {
- fe_status_t* status = parg;
+ enum fe_status *status = parg;
/* if retune was requested but hasn't occurred yet, prevent
* that user get signal state from previous tuning */
@@ -2403,7 +2384,13 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
case FE_DISEQC_SEND_MASTER_CMD:
if (fe->ops.diseqc_send_master_cmd) {
- err = fe->ops.diseqc_send_master_cmd(fe, (struct dvb_diseqc_master_cmd*) parg);
+ struct dvb_diseqc_master_cmd *cmd = parg;
+
+ if (cmd->msg_len > sizeof(cmd->msg)) {
+ err = -EINVAL;
+ break;
+ }
+ err = fe->ops.diseqc_send_master_cmd(fe, cmd);
fepriv->state = FESTATE_DISEQC;
fepriv->status = 0;
}
@@ -2411,7 +2398,8 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
case FE_DISEQC_SEND_BURST:
if (fe->ops.diseqc_send_burst) {
- err = fe->ops.diseqc_send_burst(fe, (fe_sec_mini_cmd_t) parg);
+ err = fe->ops.diseqc_send_burst(fe,
+ (enum fe_sec_mini_cmd)parg);
fepriv->state = FESTATE_DISEQC;
fepriv->status = 0;
}
@@ -2419,8 +2407,9 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
case FE_SET_TONE:
if (fe->ops.set_tone) {
- err = fe->ops.set_tone(fe, (fe_sec_tone_mode_t) parg);
- fepriv->tone = (fe_sec_tone_mode_t) parg;
+ err = fe->ops.set_tone(fe,
+ (enum fe_sec_tone_mode)parg);
+ fepriv->tone = (enum fe_sec_tone_mode)parg;
fepriv->state = FESTATE_DISEQC;
fepriv->status = 0;
}
@@ -2428,8 +2417,9 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
case FE_SET_VOLTAGE:
if (fe->ops.set_voltage) {
- err = fe->ops.set_voltage(fe, (fe_sec_voltage_t) parg);
- fepriv->voltage = (fe_sec_voltage_t) parg;
+ err = fe->ops.set_voltage(fe,
+ (enum fe_sec_voltage)parg);
+ fepriv->voltage = (enum fe_sec_voltage)parg;
fepriv->state = FESTATE_DISEQC;
fepriv->status = 0;
}
@@ -2437,7 +2427,8 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
case FE_DISHNETWORK_SEND_LEGACY_CMD:
if (fe->ops.dishnetwork_send_legacy_command) {
- err = fe->ops.dishnetwork_send_legacy_command(fe, (unsigned long) parg);
+ err = fe->ops.dishnetwork_send_legacy_command(fe,
+ (unsigned long)parg);
fepriv->state = FESTATE_DISEQC;
fepriv->status = 0;
} else if (fe->ops.set_voltage) {
@@ -2458,13 +2449,13 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
* include the initialization or start bit
*/
unsigned long swcmd = ((unsigned long) parg) << 1;
- struct timeval nexttime;
- struct timeval tv[10];
+ ktime_t nexttime;
+ ktime_t tv[10];
int i;
u8 last = 1;
if (dvb_frontend_debug)
printk("%s switch command: 0x%04lx\n", __func__, swcmd);
- do_gettimeofday(&nexttime);
+ nexttime = ktime_get_real();
if (dvb_frontend_debug)
tv[0] = nexttime;
/* before sending a command, initialize by sending
@@ -2475,7 +2466,7 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
for (i = 0; i < 9; i++) {
if (dvb_frontend_debug)
- do_gettimeofday(&tv[i + 1]);
+ tv[i+1] = ktime_get_real();
if ((swcmd & 0x01) != last) {
/* set voltage to (last ? 13V : 18V) */
fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18);
@@ -2489,7 +2480,8 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
printk("%s(%d): switch delay (should be 32k followed by all 8k\n",
__func__, fe->dvb->num);
for (i = 1; i < 10; i++)
- printk("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i]));
+ printk("%d: %d\n", i,
+ (int) ktime_us_delta(tv[i], tv[i-1]));
}
err = 0;
fepriv->state = FESTATE_DISEQC;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.