diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/clock.h | 19 | ||||
| -rw-r--r-- | include/hwtimer.h | 3 | ||||
| -rw-r--r-- | include/i2c.h | 5 | ||||
| -rw-r--r-- | include/peci.h | 3 | ||||
| -rw-r--r-- | include/watchdog.h | 20 |
5 files changed, 34 insertions, 16 deletions
diff --git a/include/clock.h b/include/clock.h index c4008672ef..081c9c95a9 100644 --- a/include/clock.h +++ b/include/clock.h @@ -1,14 +1,23 @@ -/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved. +/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ /* Clocks and power management settings */ -#ifndef __CLOCK_H -#define __CLOCK_H +#ifndef __CROS_EC_CLOCK_H +#define __CROS_EC_CLOCK_H -/* set the CPU clocks and PLLs */ +#include "common.h" + +/* Set the CPU clocks and PLLs. */ int clock_init(void); -#endif /* __CLOCK_H */ +/* Returns the current clock frequency in Hz. */ +int clock_get_freq(void); + +/* Wait <cycles> system clock cycles. Simple busy waiting for before + * clocks/timers are initialized. */ +void clock_wait_cycles(uint32_t cycles); + +#endif /* __CROS_EC_CLOCK_H */ diff --git a/include/hwtimer.h b/include/hwtimer.h index 384e3613dd..5fee466b7c 100644 --- a/include/hwtimer.h +++ b/include/hwtimer.h @@ -30,6 +30,9 @@ uint32_t __hw_clock_source_read(void); */ int __hw_clock_source_init(void); +/* Notifies the module the system clock frequency has changed to <freq>. */ +void hwtimer_clock_changed(int freq); + /** * Searches the next deadline and program it in the timer hardware. * diff --git a/include/i2c.h b/include/i2c.h index 701992e35e..22ab18adcf 100644 --- a/include/i2c.h +++ b/include/i2c.h @@ -1,4 +1,4 @@ -/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved. +/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ @@ -16,6 +16,9 @@ /* Initializes the module. */ int i2c_init(void); +/* Notifies the module the system clock frequency has changed to <freq>. */ +void i2c_clock_changed(int freq); + /* Reads a 16-bit register from the slave at 8-bit slave address * <slaveaddr>, at the specified 8-bit <offset> in the slave's address * space. */ diff --git a/include/peci.h b/include/peci.h index 2b2c33f4a7..7a98a24991 100644 --- a/include/peci.h +++ b/include/peci.h @@ -15,6 +15,9 @@ struct temp_sensor_t; /* Initializes the module. */ int peci_init(void); +/* Notifies the module the system clock frequency has changed to <freq>. */ +void peci_clock_changed(int freq); + /* Returns the current CPU temperature in degrees K, or -1 if error. * * Note that the PECI interface is currently a little flaky; if you get an diff --git a/include/watchdog.h b/include/watchdog.h index 75a5e0b4a5..569352bc6a 100644 --- a/include/watchdog.h +++ b/include/watchdog.h @@ -1,21 +1,21 @@ -/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved. +/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ /* Watchdog driver */ -#ifndef _WATCHDOG_H -#define _WATCHDOG_H +#ifndef __CROS_EC_WATCHDOG_H +#define __CROS_EC_WATCHDOG_H + +/* Initialize the watchdog. This will cause the CPU to reboot if it has been + * more than 2 watchdog periods since watchdog_reload() has been called. */ +int watchdog_init(int period_ms); /* Reload the watchdog counter */ void watchdog_reload(void); -/** - * Initialize the watchdog - * with a reloading period of <period_ms> milliseconds. - * It reboots the CPU if the counter has not been reloaded for twice the period. - */ -int watchdog_init(int period_ms); +/* Notifies the module the system clock frequency has changed to <freq>. */ +void watchdog_clock_changed(int freq); -#endif /* _WATCHDOG_H */ +#endif /* __CROS_EC_WATCHDOG_H */ |