*
* -->
*
- * \brief Thermo-control driver
+ * \brief Thermo-control driver.
*
- * \version $Id$
+ * The Thermo controll can works both with kernel or without it. In the case
+ * we use kernel, the thermo controll is done by one process that poll every
+ * CONFIG_THERMO_INTERVAL_MS the temperature sensor and make all operation to
+ * follow the target temperature. While we not use the kernel the module works
+ * with one timer interrupt in the same way of the kenel case.
*
* \author Giovanni Bajo <rasky@develer.com>
* \author Francesco Sacchi <batt@develer.com>
+ * \author Daniele Basile <asterix@develer.com>
+ *
*/
#include "hw/thermo_map.h"
#include <cfg/module.h>
#include <cfg/macros.h>
#include <cfg/debug.h>
+// Define logging setting (for cfg/log.h module).
+#define LOG_LEVEL CONFIG_THERMO_LOG_LEVEL
+#define LOG_VERBOSITY CONFIG_THERMO_LOG_FORMAT
+#include <cfg/log.h>
#include <drv/thermo.h>
#include <drv/timer.h>
#include <drv/ntc.h>
+#include <kern/proc.h>
+
+#define THERMO_OFF 0
+#define THERMO_HEATING BV(0)
+#define THERMO_FREEZING BV(1)
+#define THERMO_TGT_REACH BV(2)
+#define THERMOERRF_NTCSHORT BV(3)
+#define THERMOERRF_NTCOPEN BV(4)
+#define THERMOERRF_TIMEOUT BV(5)
+#define THERMO_ACTIVE BV(6)
+#define THERMO_TIMER BV(7)
+#define THERMO_ERRMASK (THERMOERRF_NTCSHORT | THERMOERRF_NTCOPEN | THERMOERRF_TIMEOUT)
-/** Timer for thermo-regulation. */
-static Timer thermo_timer;
+#if CONFIG_KERN
+ /** Stack process for Thermo process. */
+ static PROC_DEFINE_STACK(thermo_poll_stack, 400);
+#else
+ /** Timer for thermo-regulation. */
+ static Timer thermo_timer;
+#endif
typedef struct ThermoControlDev
{
deg_t target;
thermostatus_t status;
ticks_t expire;
+ ticks_t on_time;
} ThermoControlDev;
/** Array of thermo-devices. */
ThermoControlDev devs[THERMO_CNT];
-
/**
* Return the status of the specific \a dev thermo-device.
*/
thermostatus_t thermo_status(ThermoDev dev)
{
+ ASSERT(dev < THERMO_CNT);
return devs[dev].status;
}
{
if (cur_temp == NTC_SHORT_CIRCUIT)
{
- #ifdef _DEBUG
- if (!(dev->status & THERMOERRF_NTCSHORT))
- kprintf("dev[%d], thermo_do: NTC_SHORT\n",index);
- #endif
+ LOG_INFOB(if (!(dev->status & THERMOERRF_NTCSHORT))
+ LOG_INFO("dev[%d], thermo_do: NTC_SHORT\n",index););
+
dev->status |= THERMOERRF_NTCSHORT;
}
else
{
- #ifdef _DEBUG
- if (!(dev->status & THERMOERRF_NTCOPEN))
- kprintf("dev[%d], thermo_do: NTC_OPEN\n", index);
- #endif
+
+ LOG_INFOB(if (!(dev->status & THERMOERRF_NTCOPEN))
+ LOG_INFO("dev[%d], thermo_do: NTC_OPEN\n", index););
+
dev->status |= THERMOERRF_NTCOPEN;
}
if (timer_clock() - dev->expire > 0)
{
dev->status |= THERMOERRF_TIMEOUT;
- kprintf("dev[%d], thermo_do: TIMEOUT\n", index);
+ LOG_INFO("dev[%d], thermo_do: TIMEOUT\n", index);
}
}
else /* In target */
}
-
-/**
- * Thermo soft interrupt.
- */
-static void thermo_softint(void)
+static void poll(void)
{
- int i;
- for (i = 0; i < THERMO_CNT; ++i)
+ for (int i = 0; i < THERMO_CNT; ++i)
if (devs[i].status & THERMO_ACTIVE)
+ {
+ LOG_INFO("THERMO [%d] on_time[%ld],\n", i, ticks_to_ms(devs[i].on_time));
+ if ((devs[i].status & THERMO_TIMER) && (devs[i].on_time - timer_clock() < 0))
+ {
+ thermo_stop(i);
+ continue;
+ }
+
thermo_do((ThermoDev)i);
+ }
+}
- timer_add(&thermo_timer);
+#if CONFIG_KERN
+ static void NORETURN thermo_poll(void)
+ {
+ for (;;)
+ {
+ poll();
+ timer_delay(CONFIG_THERMO_INTERVAL_MS);
+ }
+ }
+#else
+ /**
+ * Thermo soft interrupt.
+ */
+ static void thermo_softint(void)
+ {
+ poll();
+ timer_add(&thermo_timer);
+ }
+#endif
+
+/**
+ * Starts a thermo-regulation for channel \a dev, and turn off timer
+ * when \a on_time was elapsed.
+ */
+void thermo_timer(ThermoDev dev, mtime_t on_time)
+{
+ ASSERT(dev < THERMO_CNT);
+ devs[dev].on_time = timer_clock() + ms_to_ticks(on_time);
+ devs[dev].status |= THERMO_TIMER;
+ thermo_start(dev);
}
devs[dev].target = temperature;
devs[dev].expire = timer_clock() + thermo_hw_timeout(dev);
- kprintf("setTarget dev[%d], T[%d.%d]\n", dev, temperature / 10, temperature % 10);
+ LOG_INFO("THERMO Set Target dev[%d], T[%d.%d]\n", dev, temperature / 10, temperature % 10);
}
/**
ASSERT(dev < THERMO_CNT);
devs[dev].status |= THERMO_ACTIVE;
+ LOG_INFO("THERMO Start dev[%d], status[%04x]\n", dev, devs[dev].status);
/* Initialize the hifi FIFO with a constant value (the current temperature) */
temp = thermo_hw_read(dev);
MOD_INIT(thermo);
- timer_setDelay(&thermo_timer, ms_to_ticks(CONFIG_THERMO_INTERVAL_MS));
- timer_setSoftint(&thermo_timer, (Hook)thermo_softint, 0);
- timer_add(&thermo_timer);
+ #if CONFIG_KERN
+ proc_new_with_name("Thermo", thermo_poll, NULL, sizeof(thermo_poll_stack), thermo_poll_stack);
+ #else
+ timer_setDelay(&thermo_timer, ms_to_ticks(CONFIG_THERMO_INTERVAL_MS));
+ timer_setSoftint(&thermo_timer, (Hook)thermo_softint, 0);
+ timer_add(&thermo_timer);
+ #endif
}
projects / bertos.git / blobdiff