From 2749c52080bbaba9e6ce54fb327b7157a7e392c2 Mon Sep 17 00:00:00 2001 From: Furquan Shaikh Date: Wed, 4 Oct 2017 14:01:41 -0700 Subject: ec/google/chromeec: Add library function google_chromeec_events_init mainboard_ec_init implemented by all x86-based mainboards using chromeec performed similar tasks for initializing and recording ec events. Instead of duplicating this code across multiple boards, provide a library function google_chromeec_events_init that can be called by mainboard with appropriate inputs to perform the required actions. This change also adds a new structure google_chromeec_event_info to allow mainboards to provide information required by the library function to handle different event masks. Also, google_chromeec_log_device_events and google_chromeec_log_events no longer need to be exported. Change-Id: I1cbc24e3e1a31aed35d8527f90ed16ed15ccaa86 Signed-off-by: Furquan Shaikh Reviewed-on: https://review.coreboot.org/21877 Tested-by: build bot (Jenkins) Reviewed-by: Duncan Laurie --- src/ec/google/chromeec/ec.c | 70 +++++++++++++++++++++++++++++++-------------- src/ec/google/chromeec/ec.h | 12 ++++++-- 2 files changed, 59 insertions(+), 23 deletions(-) (limited to 'src/ec') diff --git a/src/ec/google/chromeec/ec.c b/src/ec/google/chromeec/ec.c index ab879c57a2..639719a85d 100644 --- a/src/ec/google/chromeec/ec.c +++ b/src/ec/google/chromeec/ec.c @@ -222,12 +222,12 @@ uint32_t google_chromeec_get_device_current_events(void) return 0; } -void google_chromeec_log_device_events(uint32_t mask) +static void google_chromeec_log_device_events(uint32_t mask) { uint32_t events; int i; - if (!IS_ENABLED(CONFIG_ELOG)) + if (!IS_ENABLED(CONFIG_ELOG) || !mask) return; if (google_chromeec_check_feature(EC_FEATURE_DEVICE_EVENT) != 1) @@ -242,6 +242,53 @@ void google_chromeec_log_device_events(uint32_t mask) } } +static void google_chromeec_log_events(u32 mask) +{ + u8 event; + u32 wake_mask; + + if (!IS_ENABLED(CONFIG_ELOG)) + return; + + /* Set wake mask so events will be read from ACPI interface */ + wake_mask = google_chromeec_get_wake_mask(); + google_chromeec_set_wake_mask(mask); + + while ((event = google_chromeec_get_event()) != 0) { + if (EC_HOST_EVENT_MASK(event) & mask) + elog_add_event_byte(ELOG_TYPE_EC_EVENT, event); + } + + google_chromeec_set_wake_mask(wake_mask); +} + +void google_chromeec_events_init(const struct google_chromeec_event_info *info, + bool is_s3_wakeup) +{ + if (is_s3_wakeup) { + google_chromeec_log_events(info->log_events | + info->s3_wake_events); + + /* Log and clear device events that may wake the system. */ + google_chromeec_log_device_events(info->s3_device_events); + + /* Disable SMI and wake events. */ + google_chromeec_set_smi_mask(0); + + /* Clear pending events. */ + while (google_chromeec_get_event() != 0) + ; + + /* Restore SCI event mask. */ + google_chromeec_set_sci_mask(info->sci_events); + } else + google_chromeec_log_events(info->log_events | + info->s5_wake_events); + + /* Clear wake event mask. */ + google_chromeec_set_wake_mask(0); +} + int google_chromeec_check_feature(int feature) { struct chromeec_command cmd; @@ -520,25 +567,6 @@ u32 google_chromeec_get_wake_mask(void) EC_CMD_HOST_EVENT_GET_WAKE_MASK); } -void google_chromeec_log_events(u32 mask) -{ -#if IS_ENABLED(CONFIG_ELOG) - u8 event; - u32 wake_mask; - - /* Set wake mask so events will be read from ACPI interface */ - wake_mask = google_chromeec_get_wake_mask(); - google_chromeec_set_wake_mask(mask); - - while ((event = google_chromeec_get_event()) != 0) { - if (EC_HOST_EVENT_MASK(event) & mask) - elog_add_event_byte(ELOG_TYPE_EC_EVENT, event); - } - - google_chromeec_set_wake_mask(wake_mask); -#endif -} - int google_chromeec_set_usb_charge_mode(u8 port_id, enum usb_charge_mode mode) { struct chromeec_command cmd; diff --git a/src/ec/google/chromeec/ec.h b/src/ec/google/chromeec/ec.h index 81bc9336e5..95d744358c 100644 --- a/src/ec/google/chromeec/ec.h +++ b/src/ec/google/chromeec/ec.h @@ -38,7 +38,6 @@ void google_chromeec_init(void); uint32_t google_chromeec_get_device_enabled_events(void); int google_chromeec_set_device_enabled_events(uint32_t mask); uint32_t google_chromeec_get_device_current_events(void); -void google_chromeec_log_device_events(uint32_t mask); int google_chromeec_check_feature(int feature); uint8_t google_chromeec_calc_checksum(const uint8_t *data, int size); @@ -49,7 +48,6 @@ u32 google_chromeec_get_events_b(void); int google_chromeec_clear_events_b(u32 mask); int google_chromeec_kbbacklight(int percent); void google_chromeec_post(u8 postcode); -void google_chromeec_log_events(u32 mask); int google_chromeec_vbnv_context(int is_read, uint8_t *data, int len); uint8_t google_chromeec_get_switches(void); @@ -118,4 +116,14 @@ int crosec_command_proto(struct chromeec_command *cec_command, int google_chromeec_command(struct chromeec_command *cec_command); +struct google_chromeec_event_info { + uint32_t log_events; + uint32_t sci_events; + uint32_t s3_wake_events; + uint32_t s3_device_events; + uint32_t s5_wake_events; +}; +void google_chromeec_events_init(const struct google_chromeec_event_info *info, + bool is_s3_wakeup); + #endif /* _EC_GOOGLE_CHROMEEC_EC_H */ -- cgit v1.2.3