static int ioshift;
static bool softcarrier = true;
static bool share_irq;
-static bool debug;
static int sense = -1; /* -1 = auto, 0 = active high, 1 = active low */
static bool txsense; /* 0 = active high, 1 = active low */
-#define dprintk(fmt, args...) \
- do { \
- if (debug) \
- printk(KERN_DEBUG LIRC_DRIVER_NAME ": " \
- fmt, ## args); \
- } while (0)
-
/* forward declarations */
static long send_pulse_irdeo(unsigned long length);
static long send_pulse_homebrew(unsigned long length);
* time
*/
-/* So send_pulse can quickly convert microseconds to clocks */
-static unsigned long conv_us_to_clocks;
-
static int init_timing_params(unsigned int new_duty_cycle,
unsigned int new_freq)
{
/* How many clocks in a microsecond?, avoiding long long divide */
work = loops_per_sec;
work *= 4295; /* 4295 = 2^32 / 1e6 */
- conv_us_to_clocks = work >> 32;
/*
* Carrier period in clocks, approach good up to 32GHz clock,
/* Derive pulse and space from the period */
pulse_width = period * duty_cycle / 100;
space_width = period - pulse_width;
- dprintk("in init_timing_params, freq=%d, duty_cycle=%d, "
- "clk/jiffy=%ld, pulse=%ld, space=%ld, "
- "conv_us_to_clocks=%ld\n",
- freq, duty_cycle, __this_cpu_read(cpu_info.loops_per_jiffy),
- pulse_width, space_width, conv_us_to_clocks);
+ pr_debug("in init_timing_params, freq=%d, duty_cycle=%d, clk/jiffy=%ld, pulse=%ld, space=%ld, conv_us_to_clocks=%ld\n",
+ freq, duty_cycle, __this_cpu_read(cpu_info.loops_per_jiffy),
+ pulse_width, space_width, conv_us_to_clocks);
return 0;
}
#else /* ! USE_RDTSC */
period = 256 * 1000000L / freq;
pulse_width = period * duty_cycle / 100;
space_width = period - pulse_width;
- dprintk("in init_timing_params, freq=%d pulse=%ld, space=%ld\n",
- freq, pulse_width, space_width);
+ pr_debug("in init_timing_params, freq=%d pulse=%ld, space=%ld\n",
+ freq, pulse_width, space_width);
return 0;
}
#endif /* USE_RDTSC */
return ret;
}
-#ifdef USE_RDTSC
-/* Version that uses Pentium rdtsc instruction to measure clocks */
-
-/*
- * This version does sub-microsecond timing using rdtsc instruction,
- * and does away with the fudged LIRC_SERIAL_TRANSMITTER_LATENCY
- * Implicitly i586 architecture... - Steve
- */
-
-static long send_pulse_homebrew_softcarrier(unsigned long length)
-{
- int flag;
- unsigned long target, start, now;
-
- /* Get going quick as we can */
- rdtscl(start);
- on();
- /* Convert length from microseconds to clocks */
- length *= conv_us_to_clocks;
- /* And loop till time is up - flipping at right intervals */
- now = start;
- target = pulse_width;
- flag = 1;
- /*
- * FIXME: This looks like a hard busy wait, without even an occasional,
- * polite, cpu_relax() call. There's got to be a better way?
- *
- * The i2c code has the result of a lot of bit-banging work, I wonder if
- * there's something there which could be helpful here.
- */
- while ((now - start) < length) {
- /* Delay till flip time */
- do {
- rdtscl(now);
- } while ((now - start) < target);
-
- /* flip */
- if (flag) {
- rdtscl(now);
- off();
- target += space_width;
- } else {
- rdtscl(now); on();
- target += pulse_width;
- }
- flag = !flag;
- }
- rdtscl(now);
- return ((now - start) - length) / conv_us_to_clocks;
-}
-#else /* ! USE_RDTSC */
/* Version using udelay() */
/*
* here we use fixed point arithmetic, with 8
* fractional bits. that gets us within 0.1% or so of the right average
* frequency, albeit with some jitter in pulse length - Steve
+ *
+ * This should use ndelay instead.
*/
/* To match 8 fractional bits used for pulse/space length */
}
return (actual-length) >> 8;
}
-#endif /* USE_RDTSC */
static long send_pulse_homebrew(unsigned long length)
{
{
if (lirc_buffer_full(&rbuf)) {
/* no new signals will be accepted */
- dprintk("Buffer overrun\n");
+ pr_debug("Buffer overrun\n");
return;
}
lirc_buffer_write(&rbuf, (void *)&l);
dev_info(&dev->dev, "Manually using active %s receiver\n",
sense ? "low" : "high");
- dprintk("Interrupt %d, port %04x obtained\n", irq, io);
+ dev_dbg(&dev->dev, "Interrupt %d, port %04x obtained\n", irq, io);
return 0;
}
return -ENOIOCTLCMD;
case LIRC_SET_SEND_DUTY_CYCLE:
- dprintk("SET_SEND_DUTY_CYCLE\n");
+ pr_debug("SET_SEND_DUTY_CYCLE\n");
if (!(hardware[type].features&LIRC_CAN_SET_SEND_DUTY_CYCLE))
return -ENOIOCTLCMD;
return init_timing_params(value, freq);
case LIRC_SET_SEND_CARRIER:
- dprintk("SET_SEND_CARRIER\n");
+ pr_debug("SET_SEND_CARRIER\n");
if (!(hardware[type].features&LIRC_CAN_SET_SEND_CARRIER))
return -ENOIOCTLCMD;
{
lirc_unregister_driver(driver.minor);
lirc_serial_exit();
- dprintk("cleaned up module\n");
+ pr_debug("cleaned up module\n");
}
module_param(softcarrier, bool, S_IRUGO);
MODULE_PARM_DESC(softcarrier, "Software carrier (0 = off, 1 = on, default on)");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Enable debugging messages");
Code Review / kvmfornfv.git / blobdiff