To reduce code and improve performance of the embedded controller firmware, pragma __aligned(2) or __aligned(4) are used when alignment to 16 or 32 bit boundary is expected.
Define all ec_align to packed when compiling kernel.
Acked-by: Enric Balletbo i Serra enric.balletbo@collabora.com Acked-by: Benson Leung bleung@chromium.org Signed-off-by: Gwendal Grignou gwendal@chromium.org --- include/linux/mfd/cros_ec_commands.h | 442 ++++++++++++++------------- 1 file changed, 238 insertions(+), 204 deletions(-)
diff --git a/include/linux/mfd/cros_ec_commands.h b/include/linux/mfd/cros_ec_commands.h index a7a7060f44f7..c12ae9742e20 100644 --- a/include/linux/mfd/cros_ec_commands.h +++ b/include/linux/mfd/cros_ec_commands.h @@ -188,12 +188,46 @@ #ifndef __ACPI__
/* - * Define __packed if someone hasn't beat us to it. Linux kernel style - * checking prefers __packed over __attribute__((packed)). + * Attributes for EC request and response packets. Just defining __packed + * results in inefficient assembly code on ARM, if the structure is actually + * 32-bit aligned, as it should be for all buffers. + * + * Be very careful when adding these to existing structures. They will round + * up the structure size to the specified boundary. + * + * Also be very careful to make that if a structure is included in some other + * parent structure that the alignment will still be true given the packing of + * the parent structure. This is particularly important if the sub-structure + * will be passed as a pointer to another function, since that function will + * not know about the misaligment caused by the parent structure's packing. + * + * Also be very careful using __packed - particularly when nesting non-packed + * structures inside packed ones. In fact, DO NOT use __packed directly; + * always use one of these attributes. + * + * Once everything is annotated properly, the following search strings should + * not return ANY matches in this file other than right here: + * + * "__packed" - generates inefficient code; all sub-structs must also be packed + * + * "struct [^_]" - all structs should be annotated, except for structs that are + * members of other structs/unions (and their original declarations should be + * annotated). */ -#ifndef __packed -#define __packed __attribute__((packed)) -#endif + +/* + * Packed structures make no assumption about alignment, so they do inefficient + * byte-wise reads. + */ +#define __ec_align1 __packed +#define __ec_align2 __packed +#define __ec_align4 __packed +#define __ec_align_size1 __packed +#define __ec_align_offset1 __packed +#define __ec_align_offset2 __packed +#define __ec_todo_packed __packed +#define __ec_todo_unpacked +
/* LPC command status byte masks */ /* EC has written a byte in the data register and host hasn't read it yet */ @@ -317,7 +351,7 @@ struct ec_lpc_host_args { uint8_t command_version; uint8_t data_size; uint8_t checksum; -} __packed; +} __ec_align4;
/* Flags for ec_lpc_host_args.flags */ /* @@ -488,7 +522,7 @@ struct ec_host_request { uint8_t command_version; uint8_t reserved; uint16_t data_len; -} __packed; +} __ec_align4;
#define EC_HOST_RESPONSE_VERSION 3
@@ -507,7 +541,7 @@ struct ec_host_response { uint16_t result; uint16_t data_len; uint16_t reserved; -} __packed; +} __ec_align4;
/*****************************************************************************/ /* @@ -536,7 +570,7 @@ struct ec_host_response { */ struct ec_response_proto_version { uint32_t version; -} __packed; +} __ec_align4;
/* * Hello. This is a simple command to test the EC is responsive to @@ -550,7 +584,7 @@ struct ec_response_proto_version { */ struct ec_params_hello { uint32_t in_data; -} __packed; +} __ec_align4;
/** * struct ec_response_hello - Response to the hello command. @@ -558,7 +592,7 @@ struct ec_params_hello { */ struct ec_response_hello { uint32_t out_data; -} __packed; +} __ec_align4;
/* Get version number */ #define EC_CMD_GET_VERSION 0x02 @@ -581,7 +615,7 @@ struct ec_response_get_version { char version_string_rw[32]; char reserved[32]; uint32_t current_image; -} __packed; +} __ec_align4;
/* Read test */ #define EC_CMD_READ_TEST 0x03 @@ -594,7 +628,7 @@ struct ec_response_get_version { struct ec_params_read_test { uint32_t offset; uint32_t size; -} __packed; +} __ec_align4;
/** * struct ec_response_read_test - Response to the read test command. @@ -602,7 +636,7 @@ struct ec_params_read_test { */ struct ec_response_read_test { uint32_t data[32]; -} __packed; +} __ec_align4;
/* * Get build information @@ -624,7 +658,7 @@ struct ec_response_get_chip_info { char vendor[32]; char name[32]; char revision[32]; -} __packed; +} __ec_align4;
/* Get board HW version */ #define EC_CMD_GET_BOARD_VERSION 0x06 @@ -635,7 +669,7 @@ struct ec_response_get_chip_info { */ struct ec_response_board_version { uint16_t board_version; -} __packed; +} __ec_align2;
/* * Read memory-mapped data. @@ -655,7 +689,7 @@ struct ec_response_board_version { struct ec_params_read_memmap { uint8_t offset; uint8_t size; -} __packed; +} __ec_align1;
/* Read versions supported for a command */ #define EC_CMD_GET_CMD_VERSIONS 0x08 @@ -666,7 +700,7 @@ struct ec_params_read_memmap { */ struct ec_params_get_cmd_versions { uint8_t cmd; -} __packed; +} __ec_align1;
/** * struct ec_params_get_cmd_versions_v1 - Parameters for the get command @@ -675,7 +709,7 @@ struct ec_params_get_cmd_versions { */ struct ec_params_get_cmd_versions_v1 { uint16_t cmd; -} __packed; +} __ec_align2;
/** * struct ec_response_get_cmd_version - Response to the get command versions. @@ -684,7 +718,7 @@ struct ec_params_get_cmd_versions_v1 { */ struct ec_response_get_cmd_versions { uint32_t version_mask; -} __packed; +} __ec_align4;
/* * Check EC communications status (busy). This is needed on i2c/spi but not @@ -707,7 +741,7 @@ enum ec_comms_status { */ struct ec_response_get_comms_status { uint32_t flags; /* Mask of enum ec_comms_status */ -} __packed; +} __ec_align4;
/* Fake a variety of responses, purely for testing purposes. */ #define EC_CMD_TEST_PROTOCOL 0x0a @@ -717,12 +751,12 @@ struct ec_params_test_protocol { uint32_t ec_result; uint32_t ret_len; uint8_t buf[32]; -} __packed; +} __ec_align4;
/* Here it comes... */ struct ec_response_test_protocol { uint8_t buf[32]; -} __packed; +} __ec_align4;
/* Get protocol information */ #define EC_CMD_GET_PROTOCOL_INFO 0x0b @@ -745,7 +779,7 @@ struct ec_response_get_protocol_info { uint16_t max_request_packet_size; uint16_t max_response_packet_size; uint32_t flags; -} __packed; +} __ec_align4;
/*****************************************************************************/ @@ -763,12 +797,12 @@ struct ec_response_get_protocol_info { struct ec_params_get_set_value { uint32_t flags; uint32_t value; -} __packed; +} __ec_align4;
struct ec_response_get_set_value { uint32_t flags; uint32_t value; -} __packed; +} __ec_align4;
/* More than one command can use these structs to get/set parameters. */ #define EC_CMD_GSV_PAUSE_IN_S5 0x0c @@ -893,7 +927,7 @@ enum ec_feature_code {
struct ec_response_get_features { uint32_t flags[2]; -} __packed; +} __ec_align4;
/*****************************************************************************/ /* Flash commands */ @@ -918,7 +952,7 @@ struct ec_response_flash_info { uint32_t write_block_size; uint32_t erase_block_size; uint32_t protect_block_size; -} __packed; +} __ec_align4;
/* * Flags for version 1+ flash info command @@ -959,7 +993,7 @@ struct ec_response_flash_info_1 { /* Version 1 adds these fields: */ uint32_t write_ideal_size; uint32_t flags; -} __packed; +} __ec_align4;
/* * Read flash @@ -976,7 +1010,7 @@ struct ec_response_flash_info_1 { struct ec_params_flash_read { uint32_t offset; uint32_t size; -} __packed; +} __ec_align4;
/* Write flash */ #define EC_CMD_FLASH_WRITE 0x12 @@ -994,7 +1028,7 @@ struct ec_params_flash_write { uint32_t offset; uint32_t size; /* Followed by data to write */ -} __packed; +} __ec_align4;
/* Erase flash */ #define EC_CMD_FLASH_ERASE 0x13 @@ -1007,7 +1041,7 @@ struct ec_params_flash_write { struct ec_params_flash_erase { uint32_t offset; uint32_t size; -} __packed; +} __ec_align4;
/* * Get/set flash protection. @@ -1053,7 +1087,7 @@ struct ec_params_flash_erase { struct ec_params_flash_protect { uint32_t mask; uint32_t flags; -} __packed; +} __ec_align4;
/** * struct ec_response_flash_protect - Response to the flash protect command. @@ -1068,7 +1102,7 @@ struct ec_response_flash_protect { uint32_t flags; uint32_t valid_flags; uint32_t writable_flags; -} __packed; +} __ec_align4;
/* * Note: commands 0x14 - 0x19 version 0 were old commands to get/set flash @@ -1100,12 +1134,12 @@ enum ec_flash_region { */ struct ec_params_flash_region_info { uint32_t region; -} __packed; +} __ec_align4;
struct ec_response_flash_region_info { uint32_t offset; uint32_t size; -} __packed; +} __ec_align4;
/* Read/write VbNvContext */ #define EC_CMD_VBNV_CONTEXT 0x17 @@ -1120,11 +1154,11 @@ enum ec_vbnvcontext_op { struct ec_params_vbnvcontext { uint32_t op; uint8_t block[EC_VBNV_BLOCK_SIZE]; -} __packed; +} __ec_align4;
struct ec_response_vbnvcontext { uint8_t block[EC_VBNV_BLOCK_SIZE]; -} __packed; +} __ec_align4;
/*****************************************************************************/ /* PWM commands */ @@ -1134,14 +1168,14 @@ struct ec_response_vbnvcontext {
struct ec_response_pwm_get_fan_rpm { uint32_t rpm; -} __packed; +} __ec_align4;
/* Set target fan RPM */ -#define EC_CMD_PWM_SET_FAN_TARGET_RPM 0x21 +#define EC_CMD_PWM_SET_FAN_TARGET_RPM 0x0021
struct ec_params_pwm_set_fan_target_rpm { uint32_t rpm; -} __packed; +} __ec_align_size1;
/* Get keyboard backlight */ #define EC_CMD_PWM_GET_KEYBOARD_BACKLIGHT 0x22 @@ -1149,21 +1183,21 @@ struct ec_params_pwm_set_fan_target_rpm { struct ec_response_pwm_get_keyboard_backlight { uint8_t percent; uint8_t enabled; -} __packed; +} __ec_align1;
/* Set keyboard backlight */ #define EC_CMD_PWM_SET_KEYBOARD_BACKLIGHT 0x23
struct ec_params_pwm_set_keyboard_backlight { uint8_t percent; -} __packed; +} __ec_align1;
/* Set target fan PWM duty cycle */ #define EC_CMD_PWM_SET_FAN_DUTY 0x24
struct ec_params_pwm_set_fan_duty { uint32_t percent; -} __packed; +} __ec_align4;
#define EC_CMD_PWM_SET_DUTY 0x25 /* 16 bit duty cycle, 0xffff = 100% */ @@ -1183,18 +1217,18 @@ struct ec_params_pwm_set_duty { uint16_t duty; /* Duty cycle, EC_PWM_MAX_DUTY = 100% */ uint8_t pwm_type; /* ec_pwm_type */ uint8_t index; /* Type-specific index, or 0 if unique */ -} __packed; +} __ec_align4;
#define EC_CMD_PWM_GET_DUTY 0x26
struct ec_params_pwm_get_duty { uint8_t pwm_type; /* ec_pwm_type */ uint8_t index; /* Type-specific index, or 0 if unique */ -} __packed; +} __ec_align1;
struct ec_response_pwm_get_duty { uint16_t duty; /* Duty cycle, EC_PWM_MAX_DUTY = 100% */ -} __packed; +} __ec_align2;
/*****************************************************************************/ /* @@ -1207,7 +1241,7 @@ struct ec_response_pwm_get_duty {
struct rgb_s { uint8_t r, g, b; -}; +} __ec_todo_unpacked;
#define LB_BATTERY_LEVELS 4
@@ -1247,7 +1281,7 @@ struct lightbar_params_v0 {
/* Color palette */ struct rgb_s color[8]; /* 0-3 are Google colors */ -} __packed; +} __ec_todo_packed;
struct lightbar_params_v1 { /* Timing */ @@ -1290,14 +1324,14 @@ struct lightbar_params_v1 {
/* Color palette */ struct rgb_s color[8]; /* 0-3 are Google colors */ -} __packed; +} __ec_todo_packed;
/* Lightbar program */ #define EC_LB_PROG_LEN 192 struct lightbar_program { uint8_t size; uint8_t data[EC_LB_PROG_LEN]; -}; +} __ec_todo_unpacked;
struct ec_params_lightbar { uint8_t cmd; /* Command (see enum lightbar_command) */ @@ -1307,23 +1341,23 @@ struct ec_params_lightbar { } dump, off, on, init, get_seq, get_params_v0, get_params_v1, version, get_brightness, get_demo, suspend, resume;
- struct { + struct __ec_todo_unpacked { uint8_t num; } set_brightness, seq, demo;
- struct { + struct __ec_todo_unpacked { uint8_t ctrl, reg, value; } reg;
- struct { + struct __ec_todo_unpacked { uint8_t led, red, green, blue; } set_rgb;
- struct { + struct __ec_todo_unpacked { uint8_t led; } get_rgb;
- struct { + struct __ec_todo_unpacked { uint8_t enable; } manual_suspend_ctrl;
@@ -1331,31 +1365,31 @@ struct ec_params_lightbar { struct lightbar_params_v1 set_params_v1; struct lightbar_program set_program; }; -} __packed; +} __ec_todo_packed;
struct ec_response_lightbar { union { - struct { - struct { + struct __ec_todo_unpacked { + struct __ec_todo_unpacked { uint8_t reg; uint8_t ic0; uint8_t ic1; } vals[23]; } dump;
- struct { + struct __ec_todo_unpacked { uint8_t num; } get_seq, get_brightness, get_demo;
struct lightbar_params_v0 get_params_v0; struct lightbar_params_v1 get_params_v1;
- struct { + struct __ec_todo_unpacked { uint32_t num; uint32_t flags; } version;
- struct { + struct __ec_todo_unpacked { uint8_t red, green, blue; } get_rgb;
@@ -1365,7 +1399,7 @@ struct ec_response_lightbar { demo, set_params_v0, set_params_v1, set_program, manual_suspend_ctrl, suspend, resume; }; -} __packed; +} __ec_todo_packed;
/* Lightbar commands */ enum lightbar_command { @@ -1432,7 +1466,7 @@ struct ec_params_led_control { uint8_t flags; /* Control flags */
uint8_t brightness[EC_LED_COLOR_COUNT]; -} __packed; +} __ec_align1;
struct ec_response_led_control { /* @@ -1443,7 +1477,7 @@ struct ec_response_led_control { * Other values means the LED is control by PWM. */ uint8_t brightness_range[EC_LED_COLOR_COUNT]; -} __packed; +} __ec_align1;
/*****************************************************************************/ /* Verified boot commands */ @@ -1464,7 +1498,7 @@ struct ec_params_vboot_hash { uint32_t offset; /* Offset in flash to hash */ uint32_t size; /* Number of bytes to hash */ uint8_t nonce_data[64]; /* Nonce data; ignored if nonce_size=0 */ -} __packed; +} __ec_align4;
struct ec_response_vboot_hash { uint8_t status; /* enum ec_vboot_hash_status */ @@ -1474,7 +1508,7 @@ struct ec_response_vboot_hash { uint32_t offset; /* Offset in flash which was hashed */ uint32_t size; /* Number of bytes hashed */ uint8_t hash_digest[64]; /* Hash digest data */ -} __packed; +} __ec_align4;
enum ec_vboot_hash_cmd { EC_VBOOT_HASH_GET = 0, /* Get current hash status */ @@ -1634,23 +1668,23 @@ struct ec_response_motion_sensor_data { /* Each sensor is up to 3-axis. */ union { int16_t data[3]; - struct { + struct __ec_todo_packed { uint16_t reserved; uint32_t timestamp; - } __packed; - struct { + }; + struct __ec_todo_unpacked { uint8_t activity; /* motionsensor_activity */ uint8_t state; int16_t add_info[2]; }; }; -} __packed; +} __ec_todo_packed;
struct ec_params_motion_sense { uint8_t cmd; union { /* Used for MOTIONSENSE_CMD_DUMP. */ - struct { + struct __ec_todo_unpacked { /* no args */ } dump;
@@ -1658,13 +1692,13 @@ struct ec_params_motion_sense { * Used for MOTIONSENSE_CMD_EC_RATE and * MOTIONSENSE_CMD_KB_WAKE_ANGLE. */ - struct { + struct __ec_todo_unpacked { /* Data to set or EC_MOTION_SENSE_NO_VALUE to read. */ int16_t data; } ec_rate, kb_wake_angle;
/* Used for MOTIONSENSE_CMD_SENSOR_OFFSET */ - struct { + struct __ec_todo_packed { uint8_t sensor_num;
/* @@ -1690,10 +1724,10 @@ struct ec_params_motion_sense { * Compass: 1/16 uT */ int16_t offset[3]; - } __packed sensor_offset; + } sensor_offset;
/* Used for MOTIONSENSE_CMD_INFO. */ - struct { + struct __ec_todo_packed { uint8_t sensor_num; } info;
@@ -1714,12 +1748,12 @@ struct ec_params_motion_sense { int32_t data; } sensor_odr, sensor_range; }; -} __packed; +} __ec_todo_packed;
struct ec_response_motion_sense { union { /* Used for MOTIONSENSE_CMD_DUMP. */ - struct { + struct __ec_todo_unpacked { /* Flags representing the motion sensor module. */ uint8_t module_flags;
@@ -1734,7 +1768,7 @@ struct ec_response_motion_sense { } dump;
/* Used for MOTIONSENSE_CMD_INFO. */ - struct { + struct __ec_todo_unpacked { /* Should be element of enum motionsensor_type. */ uint8_t type;
@@ -1753,18 +1787,18 @@ struct ec_response_motion_sense { * MOTIONSENSE_CMD_SENSOR_RANGE, and * MOTIONSENSE_CMD_KB_WAKE_ANGLE. */ - struct { + struct __ec_todo_unpacked { /* Current value of the parameter queried. */ int32_t ret; } ec_rate, sensor_odr, sensor_range, kb_wake_angle;
/* Used for MOTIONSENSE_CMD_SENSOR_OFFSET */ - struct { + struct __ec_todo_unpacked { int16_t temp; int16_t offset[3]; } sensor_offset, perform_calib; }; -} __packed; +} __ec_todo_packed;
/*****************************************************************************/ /* USB charging control commands */ @@ -1775,7 +1809,7 @@ struct ec_response_motion_sense { struct ec_params_usb_charge_set_mode { uint8_t usb_port_id; uint8_t mode; -} __packed; +} __ec_align1;
/*****************************************************************************/ /* Persistent storage for host */ @@ -1791,7 +1825,7 @@ struct ec_response_pstore_info { uint32_t pstore_size; /* Access size; read/write offset and size must be a multiple of this */ uint32_t access_size; -} __packed; +} __ec_align4;
/* * Read persistent storage @@ -1803,7 +1837,7 @@ struct ec_response_pstore_info { struct ec_params_pstore_read { uint32_t offset; /* Byte offset to read */ uint32_t size; /* Size to read in bytes */ -} __packed; +} __ec_align4;
/* Write persistent storage */ #define EC_CMD_PSTORE_WRITE 0x42 @@ -1812,7 +1846,7 @@ struct ec_params_pstore_write { uint32_t offset; /* Byte offset to write */ uint32_t size; /* Size to write in bytes */ uint8_t data[EC_PSTORE_SIZE_MAX]; -} __packed; +} __ec_align4;
/*****************************************************************************/ /* Real-time clock */ @@ -1820,11 +1854,11 @@ struct ec_params_pstore_write { /* RTC params and response structures */ struct ec_params_rtc { uint32_t time; -} __packed; +} __ec_align4;
struct ec_response_rtc { uint32_t time; -} __packed; +} __ec_align4;
/* These use ec_response_rtc */ #define EC_CMD_RTC_GET_VALUE 0x44 @@ -1855,29 +1889,29 @@ enum ec_port80_subcmd { struct ec_params_port80_read { uint16_t subcmd; union { - struct { + struct __ec_todo_unpacked { uint32_t offset; uint32_t num_entries; } read_buffer; }; -} __packed; +} __ec_todo_packed;
struct ec_response_port80_read { union { - struct { + struct __ec_todo_unpacked { uint32_t writes; uint32_t history_size; uint32_t last_boot; } get_info; - struct { + struct __ec_todo_unpacked { uint16_t codes[EC_PORT80_SIZE_MAX]; } data; }; -} __packed; +} __ec_todo_packed;
struct ec_response_port80_last_boot { uint16_t code; -} __packed; +} __ec_align2;
/*****************************************************************************/ /* Thermal engine commands. Note that there are two implementations. We'll @@ -1898,17 +1932,17 @@ struct ec_params_thermal_set_threshold { uint8_t sensor_type; uint8_t threshold_id; uint16_t value; -} __packed; +} __ec_align2;
/* Version 0 - get */ struct ec_params_thermal_get_threshold { uint8_t sensor_type; uint8_t threshold_id; -} __packed; +} __ec_align1;
struct ec_response_thermal_get_threshold { uint16_t value; -} __packed; +} __ec_align2;
/* The version 1 structs are visible. */ @@ -1928,12 +1962,12 @@ struct ec_thermal_config { uint32_t temp_host[EC_TEMP_THRESH_COUNT]; /* levels of hotness */ uint32_t temp_fan_off; /* no active cooling needed */ uint32_t temp_fan_max; /* max active cooling needed */ -} __packed; +} __ec_align4;
/* Version 1 - get config for one sensor. */ struct ec_params_thermal_get_threshold_v1 { uint32_t sensor_num; -} __packed; +} __ec_align4; /* This returns a struct ec_thermal_config */
/* @@ -1943,7 +1977,7 @@ struct ec_params_thermal_get_threshold_v1 { struct ec_params_thermal_set_threshold_v1 { uint32_t sensor_num; struct ec_thermal_config cfg; -} __packed; +} __ec_align4; /* This returns no data */
/****************************************************************************/ @@ -1956,14 +1990,14 @@ struct ec_params_thermal_set_threshold_v1 {
struct ec_params_tmp006_get_calibration { uint8_t index; -} __packed; +} __ec_align1;
struct ec_response_tmp006_get_calibration { float s0; float b0; float b1; float b2; -} __packed; +} __ec_align4;
/* Set TMP006 calibration data */ #define EC_CMD_TMP006_SET_CALIBRATION 0x54 @@ -1975,19 +2009,19 @@ struct ec_params_tmp006_set_calibration { float b0; float b1; float b2; -} __packed; +} __ec_align4;
/* Read raw TMP006 data */ #define EC_CMD_TMP006_GET_RAW 0x55
struct ec_params_tmp006_get_raw { uint8_t index; -} __packed; +} __ec_align1;
struct ec_response_tmp006_get_raw { int32_t t; /* In 1/100 K */ int32_t v; /* In nV */ -}; +} __ec_align4;
/*****************************************************************************/ /* MKBP - Matrix KeyBoard Protocol */ @@ -2014,12 +2048,12 @@ struct ec_response_mkbp_info { uint32_t cols; /* Formerly "switches", which was 0. */ uint8_t reserved; -} __packed; +} __ec_align_size1;
struct ec_params_mkbp_info { uint8_t info_type; uint8_t event_type; -} __packed; +} __ec_align1;
enum ec_mkbp_info_type { /* @@ -2067,7 +2101,7 @@ struct ec_params_mkbp_simulate_key { uint8_t col; uint8_t row; uint8_t pressed; -} __packed; +} __ec_align1;
/* Configure keyboard scanning */ #define EC_CMD_MKBP_SET_CONFIG 0x64 @@ -2113,15 +2147,15 @@ struct ec_mkbp_config { uint16_t debounce_up_us; /* time for debounce on key up */ /* maximum depth to allow for fifo (0 = no keyscan output) */ uint8_t fifo_max_depth; -} __packed; +} __ec_align_size1;
struct ec_params_mkbp_set_config { struct ec_mkbp_config config; -} __packed; +} __ec_align_size1;
struct ec_response_mkbp_get_config { struct ec_mkbp_config config; -} __packed; +} __ec_align_size1;
/* Run the key scan emulation */ #define EC_CMD_KEYSCAN_SEQ_CTRL 0x66 @@ -2144,18 +2178,18 @@ enum ec_collect_flags {
struct ec_collect_item { uint8_t flags; /* some flags (enum ec_collect_flags) */ -}; +} __ec_align1;
struct ec_params_keyscan_seq_ctrl { uint8_t cmd; /* Command to send (enum ec_keyscan_seq_cmd) */ union { - struct { + struct __ec_align1 { uint8_t active; /* still active */ uint8_t num_items; /* number of items */ /* Current item being presented */ uint8_t cur_item; } status; - struct { + struct __ec_todo_unpacked { /* * Absolute time for this scan, measured from the * start of the sequence. @@ -2163,22 +2197,22 @@ struct ec_params_keyscan_seq_ctrl { uint32_t time_us; uint8_t scan[0]; /* keyscan data */ } add; - struct { + struct __ec_align1 { uint8_t start_item; /* First item to return */ uint8_t num_items; /* Number of items to return */ } collect; }; -} __packed; +} __ec_todo_packed;
struct ec_result_keyscan_seq_ctrl { union { - struct { + struct __ec_todo_unpacked { uint8_t num_items; /* Number of items */ /* Data for each item */ struct ec_collect_item item[0]; } collect; }; -} __packed; +} __ec_todo_packed;
/* * Command for retrieving the next pending MKBP event from the EC device @@ -2216,8 +2250,8 @@ enum ec_mkbp_event { EC_MKBP_EVENT_COUNT, };
-union ec_response_get_next_data { - uint8_t key_matrix[13]; +union __ec_align_offset1 ec_response_get_next_data { + uint8_t key_matrix[13];
/* Unaligned */ uint32_t host_event; @@ -2225,9 +2259,9 @@ union ec_response_get_next_data { uint32_t buttons; uint32_t switches; uint32_t sysrq; -} __packed; +};
-union ec_response_get_next_data_v1 { +union __ec_align_offset1 ec_response_get_next_data_v1 { uint8_t key_matrix[16]; uint32_t host_event; uint32_t buttons; @@ -2235,19 +2269,19 @@ union ec_response_get_next_data_v1 { uint32_t sysrq; uint32_t cec_events; uint8_t cec_message[16]; -} __packed; +};
struct ec_response_get_next_event { uint8_t event_type; /* Followed by event data if any */ union ec_response_get_next_data data; -} __packed; +} __ec_align1;
struct ec_response_get_next_event_v1 { uint8_t event_type; /* Followed by event data if any */ union ec_response_get_next_data_v1 data; -} __packed; +} __ec_align1;
/* Bit indices for buttons and switches.*/ /* Buttons */ @@ -2268,12 +2302,12 @@ struct ec_response_get_next_event_v1 {
struct ec_params_temp_sensor_get_info { uint8_t id; -} __packed; +} __ec_align1;
struct ec_response_temp_sensor_get_info { char sensor_name[32]; uint8_t sensor_type; -} __packed; +} __ec_align1;
/*****************************************************************************/
@@ -2292,11 +2326,11 @@ struct ec_response_temp_sensor_get_info { */ struct ec_params_host_event_mask { uint32_t mask; -} __packed; +} __ec_align4;
struct ec_response_host_event_mask { uint32_t mask; -} __packed; +} __ec_align4;
/* These all use ec_response_host_event_mask */ #define EC_CMD_HOST_EVENT_GET_B 0x87 @@ -2319,7 +2353,7 @@ struct ec_response_host_event_mask {
struct ec_params_switch_enable_backlight { uint8_t enabled; -} __packed; +} __ec_align1;
/* Enable/disable WLAN/Bluetooth */ #define EC_CMD_SWITCH_ENABLE_WIRELESS 0x91 @@ -2328,7 +2362,7 @@ struct ec_params_switch_enable_backlight { /* Version 0 params; no response */ struct ec_params_switch_enable_wireless_v0 { uint8_t enabled; -} __packed; +} __ec_align1;
/* Version 1 params */ struct ec_params_switch_enable_wireless_v1 { @@ -2347,7 +2381,7 @@ struct ec_params_switch_enable_wireless_v1 {
/* Which flags to copy from suspend_flags */ uint8_t suspend_mask; -} __packed; +} __ec_align1;
/* Version 1 response */ struct ec_response_switch_enable_wireless_v1 { @@ -2356,7 +2390,7 @@ struct ec_response_switch_enable_wireless_v1 {
/* Flags to leave enabled in S3 */ uint8_t suspend_flags; -} __packed; +} __ec_align1;
/*****************************************************************************/ /* GPIO commands. Only available on EC if write protect has been disabled. */ @@ -2367,7 +2401,7 @@ struct ec_response_switch_enable_wireless_v1 { struct ec_params_gpio_set { char name[32]; uint8_t val; -} __packed; +} __ec_align1;
/* Get GPIO value */ #define EC_CMD_GPIO_GET 0x93 @@ -2375,37 +2409,37 @@ struct ec_params_gpio_set { /* Version 0 of input params and response */ struct ec_params_gpio_get { char name[32]; -} __packed; +} __ec_align1;
struct ec_response_gpio_get { uint8_t val; -} __packed; +} __ec_align1;
/* Version 1 of input params and response */ struct ec_params_gpio_get_v1 { uint8_t subcmd; union { - struct { + struct __ec_align1 { char name[32]; } get_value_by_name; - struct { + struct __ec_align1 { uint8_t index; } get_info; }; -} __packed; +} __ec_align1;
struct ec_response_gpio_get_v1 { union { - struct { + struct __ec_align1 { uint8_t val; } get_value_by_name, get_count; - struct { + struct __ec_todo_unpacked { uint8_t val; char name[32]; uint32_t flags; } get_info; }; -} __packed; +} __ec_todo_packed;
enum gpio_get_subcmd { EC_GPIO_GET_BY_NAME = 0, @@ -2431,11 +2465,11 @@ struct ec_params_i2c_read { uint8_t read_size; /* Either 8 or 16. */ uint8_t port; uint8_t offset; -} __packed; +} __ec_align_size1;
struct ec_response_i2c_read { uint16_t data; -} __packed; +} __ec_align2;
/* Write I2C bus */ #define EC_CMD_I2C_WRITE 0x95 @@ -2446,7 +2480,7 @@ struct ec_params_i2c_write { uint8_t write_size; /* Either 8 or 16. */ uint8_t port; uint8_t offset; -} __packed; +} __ec_align_size1;
/*****************************************************************************/ /* Charge state commands. Only available when flash write protect unlocked. */ @@ -2465,7 +2499,7 @@ enum ec_charge_control_mode {
struct ec_params_charge_control { uint32_t mode; /* enum charge_control_mode */ -} __packed; +} __ec_align4;
/*****************************************************************************/
@@ -2493,7 +2527,7 @@ enum ec_console_read_subcmd {
struct ec_params_console_read_v1 { uint8_t subcmd; /* enum ec_console_read_subcmd */ -} __packed; +} __ec_align1;
/*****************************************************************************/
@@ -2511,7 +2545,7 @@ struct ec_params_console_read_v1 {
struct ec_params_battery_cutoff { uint8_t flags; -} __packed; +} __ec_align1;
/*****************************************************************************/ /* USB port mux control. */ @@ -2523,7 +2557,7 @@ struct ec_params_battery_cutoff {
struct ec_params_usb_mux { uint8_t mux; -} __packed; +} __ec_align1;
/*****************************************************************************/ /* LDOs / FETs control. */ @@ -2541,7 +2575,7 @@ enum ec_ldo_state { struct ec_params_ldo_set { uint8_t index; uint8_t state; -} __packed; +} __ec_align1;
/* * Get LDO state. @@ -2550,11 +2584,11 @@ struct ec_params_ldo_set {
struct ec_params_ldo_get { uint8_t index; -} __packed; +} __ec_align1;
struct ec_response_ldo_get { uint8_t state; -} __packed; +} __ec_align1;
/*****************************************************************************/ /* Power info. */ @@ -2570,7 +2604,7 @@ struct ec_response_power_info { uint16_t voltage_system; uint16_t current_system; uint16_t usb_current_limit; -} __packed; +} __ec_align4;
/*****************************************************************************/ /* I2C passthru command */ @@ -2592,20 +2626,20 @@ struct ec_response_power_info { struct ec_params_i2c_passthru_msg { uint16_t addr_flags; /* I2C slave address (7 or 10 bits) and flags */ uint16_t len; /* Number of bytes to read or write */ -} __packed; +} __ec_align2;
struct ec_params_i2c_passthru { uint8_t port; /* I2C port number */ uint8_t num_msgs; /* Number of messages */ struct ec_params_i2c_passthru_msg msg[]; /* Data to write for all messages is concatenated here */ -} __packed; +} __ec_align2;
struct ec_response_i2c_passthru { uint8_t i2c_status; /* Status flags (EC_I2C_STATUS_...) */ uint8_t num_msgs; /* Number of messages processed */ uint8_t data[]; /* Data read by messages concatenated here */ -} __packed; +} __ec_align1;
/*****************************************************************************/ /* Power button hang detect */ @@ -2660,7 +2694,7 @@ struct ec_params_hang_detect {
/* Timeout in msec before generating warm reboot, if enabled */ uint16_t warm_reboot_timeout_msec; -} __packed; +} __ec_align4;
/*****************************************************************************/ /* Commands for battery charging */ @@ -2706,20 +2740,20 @@ struct ec_params_charge_state { /* no args */ } get_state;
- struct { + struct __ec_todo_unpacked { uint32_t param; /* enum charge_state_param */ } get_param;
- struct { + struct __ec_todo_unpacked { uint32_t param; /* param to set */ uint32_t value; /* value to set */ } set_param; }; -} __packed; +} __ec_todo_packed;
struct ec_response_charge_state { union { - struct { + struct __ec_align4 { int ac; int chg_voltage; int chg_current; @@ -2727,14 +2761,14 @@ struct ec_response_charge_state { int batt_state_of_charge; } get_state;
- struct { + struct __ec_align4 { uint32_t value; } get_param; struct { /* no return values */ } set_param; }; -} __packed; +} __ec_align4;
/* @@ -2744,7 +2778,7 @@ struct ec_response_charge_state {
struct ec_params_current_limit { uint32_t limit; /* in mA */ -} __packed; +} __ec_align4;
/* * Set maximum external voltage / current. @@ -2755,7 +2789,7 @@ struct ec_params_current_limit { struct ec_params_external_power_limit_v1 { uint16_t current_lim; /* in mA, or EC_POWER_LIMIT_NONE to clear limit */ uint16_t voltage_lim; /* in mV, or EC_POWER_LIMIT_NONE to clear limit */ -} __packed; +} __ec_align2;
#define EC_POWER_LIMIT_NONE 0xffff
@@ -2771,7 +2805,7 @@ enum host_sleep_event {
struct ec_params_host_sleep_event { uint8_t sleep_event; -} __packed; +} __ec_align1;
/* * Use a default timeout value (CONFIG_SLEEP_TIMEOUT_MS) for detecting sleep @@ -2802,7 +2836,7 @@ struct ec_params_host_sleep_event_v1 {
/* No parameters for non-suspend messages. */ }; -} __packed; +} __ec_align2;
/* A timeout occurred when this bit is set */ #define EC_HOST_RESUME_SLEEP_TIMEOUT 0x80000000 @@ -2828,7 +2862,7 @@ struct ec_response_host_sleep_event_v1 {
/* No response fields for non-resume messages. */ }; -} __packed; +} __ec_align4;
/*****************************************************************************/ /* Smart battery pass-through */ @@ -2845,25 +2879,25 @@ struct ec_response_host_sleep_event_v1 {
struct ec_params_sb_rd { uint8_t reg; -} __packed; +} __ec_align1;
struct ec_response_sb_rd_word { uint16_t value; -} __packed; +} __ec_align2;
struct ec_params_sb_wr_word { uint8_t reg; uint16_t value; -} __packed; +} __ec_align1;
struct ec_response_sb_rd_block { uint8_t data[32]; -} __packed; +} __ec_align1;
struct ec_params_sb_wr_block { uint8_t reg; uint16_t data[32]; -} __packed; +} __ec_align1;
/*****************************************************************************/ /* Battery vendor parameters @@ -2885,11 +2919,11 @@ struct ec_params_battery_vendor_param { uint32_t param; uint32_t value; uint8_t mode; -} __packed; +} __ec_align_size1;
struct ec_response_battery_vendor_param { uint32_t value; -} __packed; +} __ec_align4;
/*****************************************************************************/ /* Commands for I2S recording on audio codec. */ @@ -2920,7 +2954,7 @@ enum ec_i2s_config { EC_DAI_FMT_PCM_TDM = 5, };
-struct ec_param_codec_i2s { +struct __ec_todo_packed ec_param_codec_i2s { /* enum ec_codec_i2s_subcmd */ uint8_t cmd; union { @@ -2934,10 +2968,10 @@ struct ec_param_codec_i2s { * EC_CODEC_SET_GAIN * Value should be 0~43 for both channels. */ - struct ec_param_codec_i2s_set_gain { + struct __ec_align1 ec_param_codec_i2s_set_gain { uint8_t left; uint8_t right; - } __packed gain; + } gain;
/* * EC_CODEC_I2S_ENABLE @@ -2955,7 +2989,7 @@ struct ec_param_codec_i2s { * EC_CODEC_I2S_SET_TDM_CONFIG * Value should be one of ec_i2s_config. */ - struct ec_param_codec_i2s_tdm { + struct __ec_todo_unpacked ec_param_codec_i2s_tdm { /* * 0 to 496 */ @@ -2966,14 +3000,14 @@ struct ec_param_codec_i2s { int16_t ch1_delay; uint8_t adjacent_to_ch0; uint8_t adjacent_to_ch1; - } __packed tdm_param; + } tdm_param;
/* * EC_CODEC_I2S_SET_BCLK */ uint32_t bclk; }; -} __packed; +};
/* * For subcommand EC_CODEC_GET_GAIN. @@ -2981,7 +3015,7 @@ struct ec_param_codec_i2s { struct ec_response_codec_gain { uint8_t left; uint8_t right; -} __packed; +} __ec_align1;
/*****************************************************************************/ /* System commands */ @@ -3010,7 +3044,7 @@ enum ec_reboot_cmd { struct ec_params_reboot_ec { uint8_t cmd; /* enum ec_reboot_cmd */ uint8_t flags; /* See EC_REBOOT_FLAG_* */ -} __packed; +} __ec_align1;
/* * Get information on last EC panic. @@ -3153,7 +3187,7 @@ struct ec_params_reboot_ec { */ struct ec_params_cec_write { uint8_t msg[EC_MAX_CEC_MSG_LEN]; -} __packed; +} __ec_align1;
/* Set various CEC parameters */ #define EC_CMD_CEC_SET 0x00BA @@ -3169,7 +3203,7 @@ struct ec_params_cec_write { struct ec_params_cec_set { uint8_t cmd; /* enum cec_command */ uint8_t val; -} __packed; +} __ec_align1;
/* Read various CEC parameters */ #define EC_CMD_CEC_GET 0x00BB @@ -3180,7 +3214,7 @@ struct ec_params_cec_set { */ struct ec_params_cec_get { uint8_t cmd; /* enum cec_command */ -} __packed; +} __ec_align1;
/** * struct ec_response_cec_get - CEC parameters get response @@ -3191,7 +3225,7 @@ struct ec_params_cec_get { */ struct ec_response_cec_get { uint8_t val; -} __packed; +} __ec_align1;
/* CEC parameters command */ enum ec_cec_command { @@ -3264,13 +3298,13 @@ enum mkbp_cec_event { /* Status of EC being sent to PD */ struct ec_params_pd_status { int8_t batt_soc; /* battery state of charge */ -} __packed; +} __ec_align1;
/* Status of PD being sent back to EC */ struct ec_response_pd_status { int8_t status; /* PD MCU status */ uint32_t curr_lim_ma; /* input current limit */ -} __packed; +} __ec_align_size1;
/* Set USB type-C port role and muxes */ #define EC_CMD_USB_PD_CONTROL 0x101 @@ -3305,7 +3339,7 @@ struct ec_params_usb_pd_control { uint8_t role; uint8_t mux; uint8_t swap; -} __packed; +} __ec_align1;
#define PD_CTRL_RESP_ENABLED_COMMS (1 << 0) /* Communication enabled */ #define PD_CTRL_RESP_ENABLED_CONNECTED (1 << 1) /* Device connected */ @@ -3324,7 +3358,7 @@ struct ec_response_usb_pd_control_v1 { uint8_t role; uint8_t polarity; char state[32]; -} __packed; +} __ec_align1;
#define EC_CMD_USB_PD_PORTS 0x102
@@ -3333,14 +3367,14 @@ struct ec_response_usb_pd_control_v1 {
struct ec_response_usb_pd_ports { uint8_t num_ports; -} __packed; +} __ec_align1;
#define EC_CMD_USB_PD_POWER_INFO 0x103
#define PD_POWER_CHARGING_PORT 0xff struct ec_params_usb_pd_power_info { uint8_t port; -} __packed; +} __ec_align1;
enum usb_chg_type { USB_CHG_TYPE_NONE, @@ -3366,7 +3400,7 @@ struct usb_chg_measures { uint16_t voltage_now; uint16_t current_max; uint16_t current_lim; -} __packed; +} __ec_align2;
struct ec_response_usb_pd_power_info { uint8_t role; @@ -3375,11 +3409,11 @@ struct ec_response_usb_pd_power_info { uint8_t reserved1; struct usb_chg_measures meas; uint32_t max_power; -} __packed; +} __ec_align4;
struct ec_params_usb_pd_info_request { uint8_t port; -} __packed; +} __ec_align1;
/* * This command will return the number of USB PD charge port + the number @@ -3389,7 +3423,7 @@ struct ec_params_usb_pd_info_request { #define EC_CMD_CHARGE_PORT_COUNT 0x0105 struct ec_response_charge_port_count { uint8_t port_count; -} __packed; +} __ec_align1;
/* Read USB-PD Device discovery info */ #define EC_CMD_USB_PD_DISCOVERY 0x0113 @@ -3397,7 +3431,7 @@ struct ec_params_usb_pd_discovery_entry { uint16_t vid; /* USB-IF VID */ uint16_t pid; /* USB-IF PID */ uint8_t ptype; /* product type (hub,periph,cable,ama) */ -} __packed; +} __ec_align_size1;
/* Override default charge behavior */ #define EC_CMD_PD_CHARGE_PORT_OVERRIDE 0x0114 @@ -3411,7 +3445,7 @@ enum usb_pd_override_ports {
struct ec_params_charge_port_override { int16_t override_port; /* Override port# */ -} __packed; +} __ec_align2;
/* Read (and delete) one entry of PD event log */ #define EC_CMD_PD_GET_LOG_ENTRY 0x0115 @@ -3422,7 +3456,7 @@ struct ec_response_pd_log { uint8_t size_port; /* [7:5] port number [4:0] payload size in bytes */ uint16_t data; /* type-defined data payload */ uint8_t payload[0]; /* optional additional data payload: 0..16 bytes */ -} __packed; +} __ec_align4;
/* The timestamp is the microsecond counter shifted to get about a ms. */ #define PD_LOG_TIMESTAMP_SHIFT 10 /* 1 LSB = 1024us */ @@ -3488,14 +3522,14 @@ struct mcdp_version { uint8_t major; uint8_t minor; uint16_t build; -} __packed; +} __ec_align4;
struct mcdp_info { uint8_t family[2]; uint8_t chipid[2]; struct mcdp_version irom; struct mcdp_version fw; -} __packed; +} __ec_align4;
/* struct mcdp_info field decoding */ #define MCDP_CHIPID(chipid) ((chipid[0] << 8) | chipid[1]) @@ -3506,7 +3540,7 @@ struct mcdp_info {
struct ec_params_usb_pd_mux_info { uint8_t port; /* USB-C port number */ -} __packed; +} __ec_align1;
/* Flags representing mux state */ #define USB_PD_MUX_USB_ENABLED (1 << 0) @@ -3516,7 +3550,7 @@ struct ec_params_usb_pd_mux_info {
struct ec_response_usb_pd_mux_info { uint8_t flags; /* USB_PD_MUX_*-encoded USB mux state */ -} __packed; +} __ec_align1;
/*****************************************************************************/ /*