diff options
Diffstat (limited to 'zephyr/shim/src/rtc.c')
| -rw-r--r-- | zephyr/shim/src/rtc.c | 235 |
1 files changed, 0 insertions, 235 deletions
diff --git a/zephyr/shim/src/rtc.c b/zephyr/shim/src/rtc.c deleted file mode 100644 index 002e60148d..0000000000 --- a/zephyr/shim/src/rtc.c +++ /dev/null @@ -1,235 +0,0 @@ -/* Copyright 2021 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. - */ - -#include <logging/log.h> -#include <kernel.h> -#include <zephyr.h> - -#include "console.h" -#include "drivers/cros_rtc.h" -#include "hooks.h" -#include "host_command.h" -#include "util.h" - -LOG_MODULE_REGISTER(shim_cros_rtc, LOG_LEVEL_ERR); - -#define CROS_RTC_NODE DT_CHOSEN(cros_rtc) -static const struct device *cros_rtc_dev; - -#ifdef CONFIG_HOSTCMD_EVENTS -static void set_rtc_host_event(void) -{ - host_set_single_event(EC_HOST_EVENT_RTC); -} -DECLARE_DEFERRED(set_rtc_host_event); -#endif - -void rtc_callback(const struct device *dev) -{ - ARG_UNUSED(dev); - - if (IS_ENABLED(CONFIG_HOSTCMD_EVENTS)) { - hook_call_deferred(&set_rtc_host_event_data, 0); - } -} - -/** Initialize the rtc. */ -static int system_init_rtc(const struct device *unused) -{ - ARG_UNUSED(unused); - - cros_rtc_dev = DEVICE_DT_GET(CROS_RTC_NODE); - if (!cros_rtc_dev) { - LOG_ERR("Error: device %s is not ready", cros_rtc_dev->name); - return -ENODEV; - } - - /* set the RTC callback */ - cros_rtc_configure(cros_rtc_dev, rtc_callback); - - return 0; -} -SYS_INIT(system_init_rtc, APPLICATION, 1); - -uint32_t system_get_rtc_sec(void) -{ - uint32_t seconds; - - cros_rtc_get_value(cros_rtc_dev, &seconds); - - return seconds; -} - -void system_set_rtc(uint32_t seconds) -{ - cros_rtc_set_value(cros_rtc_dev, seconds); -} - -void system_reset_rtc_alarm(void) -{ - if (!cros_rtc_dev) { - /* TODO(b/183115086): check the error handler for NULL device */ - LOG_ERR("rtc_dev hasn't initialized."); - return; - } - - cros_rtc_reset_alarm(cros_rtc_dev); -} - -/* - * For NPCX series, The alarm counter only stores wakeup time in seconds. - * Microseconds will be ignored. - */ -void system_set_rtc_alarm(uint32_t seconds, uint32_t microseconds) -{ - if (!cros_rtc_dev) { - LOG_ERR("rtc_dev hasn't initialized."); - return; - } - - /* If time = 0, clear the current alarm */ - if (seconds == EC_RTC_ALARM_CLEAR && microseconds == 0) { - system_reset_rtc_alarm(); - return; - } - - seconds += system_get_rtc_sec(); - - cros_rtc_set_alarm(cros_rtc_dev, seconds, microseconds); -} - -/* - * Return the seconds remaining before the RTC alarm goes off. - * Returns 0 if alarm is not set. - */ -uint32_t system_get_rtc_alarm(void) -{ - uint32_t seconds, microseconds; - - cros_rtc_get_alarm(cros_rtc_dev, &seconds, µseconds); - - /* - * Return 0: - * 1. If alarm is not set to go off, OR - * 2. If alarm is set and has already gone off - */ - if (seconds == 0) { - return 0; - } - - return seconds - system_get_rtc_sec(); -} - -/* Console commands */ -void print_system_rtc(enum console_channel ch) -{ - uint32_t sec = system_get_rtc_sec(); - - cprintf(ch, "RTC: 0x%08x (%d.00 s)\n", sec, sec); -} - -/* - * TODO(b/179055201): This is similar to the same function in some of the - * chip-specific code. We should factor out the common parts. - */ -#ifdef CONFIG_PLATFORM_EC_CONSOLE_CMD_RTC -static int command_system_rtc(int argc, char **argv) -{ - if (argc == 3 && !strcasecmp(argv[1], "set")) { - char *e; - unsigned int t = strtoi(argv[2], &e, 0); - - if (*e) - return EC_ERROR_PARAM2; - - system_set_rtc(t); - } else if (argc > 1) { - return EC_ERROR_INVAL; - } - - print_system_rtc(CC_COMMAND); - - return EC_SUCCESS; -} -DECLARE_CONSOLE_COMMAND(rtc, command_system_rtc, "[set <seconds>]", - "Get/set real-time clock"); - -#ifdef CONFIG_PLATFORM_EC_CONSOLE_CMD_RTC_ALARM -/** - * Test the RTC alarm by setting an interrupt on RTC match. - */ -static int command_rtc_alarm_test(int argc, char **argv) -{ - int s = 1, us = 0; - char *e; - - if (argc > 1) { - s = strtoi(argv[1], &e, 10); - if (*e) - return EC_ERROR_PARAM1; - } - if (argc > 2) { - us = strtoi(argv[2], &e, 10); - if (*e) - return EC_ERROR_PARAM2; - } - - ccprintf("Setting RTC alarm\n"); - - system_set_rtc_alarm(s, us); - - return EC_SUCCESS; -} -DECLARE_CONSOLE_COMMAND(rtc_alarm, command_rtc_alarm_test, - "[seconds [microseconds]]", "Test alarm"); -#endif /* CONFIG_PLATFORM_EC_CONSOLE_CMD_RTC_ALARM */ -#endif /* CONFIG_PLATFORM_EC_CONSOLE_CMD_RTC */ - -#ifdef CONFIG_PLATFORM_EC_HOSTCMD_RTC -static enum ec_status system_rtc_get_value(struct host_cmd_handler_args *args) -{ - struct ec_response_rtc *r = args->response; - - r->time = system_get_rtc_sec(); - args->response_size = sizeof(*r); - - return EC_RES_SUCCESS; -} -DECLARE_HOST_COMMAND(EC_CMD_RTC_GET_VALUE, system_rtc_get_value, - EC_VER_MASK(0)); - -static enum ec_status system_rtc_set_value(struct host_cmd_handler_args *args) -{ - const struct ec_params_rtc *p = args->params; - - system_set_rtc(p->time); - return EC_RES_SUCCESS; -} -DECLARE_HOST_COMMAND(EC_CMD_RTC_SET_VALUE, system_rtc_set_value, - EC_VER_MASK(0)); - -static enum ec_status system_rtc_set_alarm(struct host_cmd_handler_args *args) -{ - const struct ec_params_rtc *p = args->params; - - system_set_rtc_alarm(p->time, 0); - return EC_RES_SUCCESS; -} -DECLARE_HOST_COMMAND(EC_CMD_RTC_SET_ALARM, system_rtc_set_alarm, - EC_VER_MASK(0)); - -static enum ec_status system_rtc_get_alarm(struct host_cmd_handler_args *args) -{ - struct ec_response_rtc *r = args->response; - - r->time = system_get_rtc_alarm(); - args->response_size = sizeof(*r); - - return EC_RES_SUCCESS; -} -DECLARE_HOST_COMMAND(EC_CMD_RTC_GET_ALARM, system_rtc_get_alarm, - EC_VER_MASK(0)); - -#endif /* CONFIG_PLATFORM_EC_HOSTCMD_RTC */ |