From 835e699ef82adfc85ac4cc3f1f237c1adfdefd20 Mon Sep 17 00:00:00 2001 From: Jagath Jog J Date: Wed, 31 Aug 2022 12:01:16 +0530 Subject: iio: Add new event type gesture and use direction for single and double tap Add new event type for tap called gesture and the direction can be used to differentiate single and double tap. This may be used by accelerometer sensors to express single and double tap events. For directional tap, modifiers like IIO_MOD_(X/Y/Z) can be used along with singletap and doubletap direction. Signed-off-by: Jagath Jog J Link: https://lore.kernel.org/r/20220831063117.4141-2-jagathjog1996@gmail.com Signed-off-by: Jonathan Cameron --- include/uapi/linux/iio/types.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/iio/types.h b/include/uapi/linux/iio/types.h index 472cead10d8d..913864221ac4 100644 --- a/include/uapi/linux/iio/types.h +++ b/include/uapi/linux/iio/types.h @@ -105,6 +105,7 @@ enum iio_event_type { IIO_EV_TYPE_MAG_ADAPTIVE, IIO_EV_TYPE_CHANGE, IIO_EV_TYPE_MAG_REFERENCED, + IIO_EV_TYPE_GESTURE, }; enum iio_event_direction { @@ -112,6 +113,8 @@ enum iio_event_direction { IIO_EV_DIR_RISING, IIO_EV_DIR_FALLING, IIO_EV_DIR_NONE, + IIO_EV_DIR_SINGLETAP, + IIO_EV_DIR_DOUBLETAP, }; #endif /* _UAPI_IIO_TYPES_H_ */ -- cgit v1.2.3 From f25a72b8b9f4885ea30263a02d1083e283c9e718 Mon Sep 17 00:00:00 2001 From: Bharat Jauhari Date: Wed, 1 Jun 2022 15:18:47 +0300 Subject: habanalabs: fix spelling mistakes Cosmetic commit, no logical changes. It just fixes the spelling mistakes. Signed-off-by: Bharat Jauhari Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay --- include/uapi/misc/habanalabs.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'include/uapi') diff --git a/include/uapi/misc/habanalabs.h b/include/uapi/misc/habanalabs.h index 5d06d5c74dd1..be06b1307c44 100644 --- a/include/uapi/misc/habanalabs.h +++ b/include/uapi/misc/habanalabs.h @@ -876,13 +876,13 @@ struct hl_info_hw_idle { __u32 is_idle; /* * Bitmask of busy engines. - * Bits definition is according to `enum _enging_id'. + * Bits definition is according to `enum _engine_id'. */ __u32 busy_engines_mask; /* * Extended Bitmask of busy engines. - * Bits definition is according to `enum _enging_id'. + * Bits definition is according to `enum _engine_id'. */ __u64 busy_engines_mask_ext[HL_BUSY_ENGINES_MASK_EXT_SIZE]; }; @@ -1078,12 +1078,12 @@ struct hl_info_razwi_event { * struct hl_info_undefined_opcode_event - info about last undefined opcode error * @timestamp: timestamp of the undefined opcode error * @cb_addr_streams: CB addresses (per stream) that are currently exists in the PQ - * entiers. In case all streams array entries are + * entries. In case all streams array entries are * filled with values, it means the execution was in Lower-CP. * @cq_addr: the address of the current handled command buffer * @cq_size: the size of the current handled command buffer * @cb_addr_streams_len: num of streams - actual len of cb_addr_streams array. - * should be equal to 1 incase of undefined opcode + * should be equal to 1 in case of undefined opcode * in Upper-CP (specific stream) and equal to 4 incase * of undefined opcode in Lower-CP. * @engine_id: engine-id that the error occurred on @@ -1412,7 +1412,7 @@ struct hl_cs_out { /* Valid only when HL_CS_FLAGS_RESERVE_SIGNALS_ONLY is set */ struct { - /* This is the resereved signal handle id */ + /* This is the reserved signal handle id */ __u32 handle_id; /* This is the signals count */ -- cgit v1.2.3 From f018c54e3de6619c46e33ab1c613761e9fba21d0 Mon Sep 17 00:00:00 2001 From: Dani Liberman Date: Sat, 9 Jul 2022 12:34:17 +0300 Subject: habanalabs: add uapi to retrieve engines status Currently, to get engines status, user needed to read debugfs file with root permissions. This new uapi allows user apace apps retrieve status, so for example, in case of failure, status can be retrieved immediately by the application itself which runs without root permissions. Signed-off-by: Dani Liberman Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay --- include/uapi/misc/habanalabs.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/misc/habanalabs.h b/include/uapi/misc/habanalabs.h index be06b1307c44..83ca6f40f4ba 100644 --- a/include/uapi/misc/habanalabs.h +++ b/include/uapi/misc/habanalabs.h @@ -787,10 +787,14 @@ enum hl_server_type { #define HL_INFO_UNREGISTER_EVENTFD 29 #define HL_INFO_GET_EVENTS 30 #define HL_INFO_UNDEFINED_OPCODE_EVENT 31 +#define HL_INFO_ENGINE_STATUS 32 #define HL_INFO_VERSION_MAX_LEN 128 #define HL_INFO_CARD_NAME_MAX_LEN 16 +/* Maximum buffer size for retrieving engines status */ +#define HL_ENGINES_DATA_MAX_SIZE SZ_1M + /** * struct hl_info_hw_ip_info - hardware information on various IPs in the ASIC * @sram_base_address: The first SRAM physical base address that is free to be @@ -1130,6 +1134,10 @@ enum gaudi_dcores { * resolution. Currently not in use. * @pll_index: Index as defined in hl__pll_index enumeration. * @eventfd: event file descriptor for event notifications. + * @user_buffer_actual_size: Actual data size which was copied to user allocated buffer by the + * driver. It is possible for the user to allocate buffer larger than + * needed, hence updating this variable so user will know the exact amount + * of bytes copied by the kernel to the buffer. * @pad: Padding to 64 bit. */ struct hl_info_args { @@ -1143,6 +1151,7 @@ struct hl_info_args { __u32 period_ms; __u32 pll_index; __u32 eventfd; + __u32 user_buffer_actual_size; }; __u32 pad; -- cgit v1.2.3 From 7ca9022bd776d5a1c694ec0973e3d2e8671013c2 Mon Sep 17 00:00:00 2001 From: Oded Gabbay Date: Sun, 31 Jul 2022 08:27:36 +0300 Subject: habanalabs/uapi: move defines to better place inside file Cosmetic change to move the eventfd events defines to a better location in the file, closer to other INFO IOCTL defines. Signed-off-by: Oded Gabbay --- include/uapi/misc/habanalabs.h | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-) (limited to 'include/uapi') diff --git a/include/uapi/misc/habanalabs.h b/include/uapi/misc/habanalabs.h index 83ca6f40f4ba..0da8894ab94a 100644 --- a/include/uapi/misc/habanalabs.h +++ b/include/uapi/misc/habanalabs.h @@ -707,6 +707,21 @@ enum hl_server_type { HL_SERVER_GAUDI2_HLS2 = 5 }; +/* + * Notifier event values - for the notification mechanism and the HL_INFO_GET_EVENTS command + * + * HL_NOTIFIER_EVENT_TPC_ASSERT - Indicates TPC assert event + * HL_NOTIFIER_EVENT_UNDEFINED_OPCODE - Indicates undefined operation code + * HL_NOTIFIER_EVENT_DEVICE_RESET - Indicates device requires a reset + * HL_NOTIFIER_EVENT_CS_TIMEOUT - Indicates CS timeout error + * HL_NOTIFIER_EVENT_DEVICE_UNAVAILABLE - Indicates device is unavailable + */ +#define HL_NOTIFIER_EVENT_TPC_ASSERT (1ULL << 0) +#define HL_NOTIFIER_EVENT_UNDEFINED_OPCODE (1ULL << 1) +#define HL_NOTIFIER_EVENT_DEVICE_RESET (1ULL << 2) +#define HL_NOTIFIER_EVENT_CS_TIMEOUT (1ULL << 3) +#define HL_NOTIFIER_EVENT_DEVICE_UNAVAILABLE (1ULL << 4) + /* Opcode for management ioctl * * HW_IP_INFO - Receive information about different IP blocks in the @@ -1883,21 +1898,6 @@ struct hl_debug_args { __u32 ctx_id; }; -/* - * Notifier event values - for the notification mechanism and the HL_INFO_GET_EVENTS command - * - * HL_NOTIFIER_EVENT_TPC_ASSERT - Indicates TPC assert event - * HL_NOTIFIER_EVENT_UNDEFINED_OPCODE - Indicates undefined operation code - * HL_NOTIFIER_EVENT_DEVICE_RESET - Indicates device requires a reset - * HL_NOTIFIER_EVENT_CS_TIMEOUT - Indicates CS timeout error - * HL_NOTIFIER_EVENT_DEVICE_UNAVAILABLE - Indicates device is unavailable - */ -#define HL_NOTIFIER_EVENT_TPC_ASSERT (1ULL << 0) -#define HL_NOTIFIER_EVENT_UNDEFINED_OPCODE (1ULL << 1) -#define HL_NOTIFIER_EVENT_DEVICE_RESET (1ULL << 2) -#define HL_NOTIFIER_EVENT_CS_TIMEOUT (1ULL << 3) -#define HL_NOTIFIER_EVENT_DEVICE_UNAVAILABLE (1ULL << 4) - /* * Various information operations such as: * - H/W IP information -- cgit v1.2.3 From 194e515c79462f1ad09ebcc9e01a3acb84a98d82 Mon Sep 17 00:00:00 2001 From: Tal Cohen Date: Thu, 7 Jul 2022 18:42:47 +0300 Subject: habanalabs/gaudi2: new API to control engine cores running mode The current flow of halting the engine cores is implemented by command buffers built by the user space and sent towards the Driver. This current flow is broken since the user space does not know when the cores actually halt as sending a workload is async op. Therefore the application can not free the memory that is mapped to the engine cores. This new API allows the user space to control the running mode. The API call is sync (returns after the cores are set to the requested mode). Signed-off-by: Tal Cohen Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay --- include/uapi/misc/habanalabs.h | 38 ++++++++++++++++++++++++++++++++++---- 1 file changed, 34 insertions(+), 4 deletions(-) (limited to 'include/uapi') diff --git a/include/uapi/misc/habanalabs.h b/include/uapi/misc/habanalabs.h index 0da8894ab94a..f51c6ae4f94d 100644 --- a/include/uapi/misc/habanalabs.h +++ b/include/uapi/misc/habanalabs.h @@ -1361,17 +1361,47 @@ struct hl_cs_chunk { #define HL_CS_FLAGS_RESERVE_SIGNALS_ONLY 0x1000 #define HL_CS_FLAGS_UNRESERVE_SIGNALS_ONLY 0x2000 +/* + * The engine cores CS is merged into the existing CS ioctls. + * Use it to control the engine cores mode. + */ +#define HL_CS_FLAGS_ENGINE_CORE_COMMAND 0x4000 + #define HL_CS_STATUS_SUCCESS 0 #define HL_MAX_JOBS_PER_CS 512 +/* HL_ENGINE_CORE_ values + * + * HL_ENGINE_CORE_HALT: engine core halt + * HL_ENGINE_CORE_RUN: engine core run + */ +#define HL_ENGINE_CORE_HALT (1 << 0) +#define HL_ENGINE_CORE_RUN (1 << 1) + struct hl_cs_in { - /* this holds address of array of hl_cs_chunk for restore phase */ - __u64 chunks_restore; + union { + struct { + /* this holds address of array of hl_cs_chunk for restore phase */ + __u64 chunks_restore; - /* holds address of array of hl_cs_chunk for execution phase */ - __u64 chunks_execute; + /* holds address of array of hl_cs_chunk for execution phase */ + __u64 chunks_execute; + }; + + /* Valid only when HL_CS_FLAGS_ENGINE_CORE_COMMAND is set */ + struct { + /* this holds address of array of uint32 for engine_cores */ + __u64 engine_cores; + + /* number of engine cores in engine_cores array */ + __u32 num_engine_cores; + + /* the core command to be sent towards engine cores */ + __u32 core_command; + }; + }; union { /* -- cgit v1.2.3 From 38a4358009456bfd7e4893c4f98ee401efce26eb Mon Sep 17 00:00:00 2001 From: Ofir Bitton Date: Wed, 3 Aug 2022 17:25:33 +0300 Subject: habanalabs: expose device security status using info ioctl In order for the user to know if he is running on a secured device or not, we add it also to the hw_ip info ioctl. Signed-off-by: Ofir Bitton Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay --- include/uapi/misc/habanalabs.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/uapi') diff --git a/include/uapi/misc/habanalabs.h b/include/uapi/misc/habanalabs.h index f51c6ae4f94d..3005cc04d4b1 100644 --- a/include/uapi/misc/habanalabs.h +++ b/include/uapi/misc/habanalabs.h @@ -840,6 +840,7 @@ enum hl_server_type { * @tpc_enabled_mask: Bit-mask that represents which TPCs are enabled. Relevant * for Goya/Gaudi only. * @dram_enabled: Whether the DRAM is enabled. + * @security_enabled: Whether security is enabled on device. * @mme_master_slave_mode: Indicate whether the MME is working in master/slave * configuration. Relevant for Greco and later. * @cpucp_version: The CPUCP f/w version. @@ -871,7 +872,7 @@ struct hl_info_hw_ip_info { __u32 psoc_pci_pll_div_factor; __u8 tpc_enabled_mask; __u8 dram_enabled; - __u8 reserved; + __u8 security_enabled; __u8 mme_master_slave_mode; __u8 cpucp_version[HL_INFO_VERSION_MAX_LEN]; __u8 card_name[HL_INFO_CARD_NAME_MAX_LEN]; -- cgit v1.2.3 From 6f0818c9fc9b81d8a303a8d3fb1826d71777f7ed Mon Sep 17 00:00:00 2001 From: Tal Cohen Date: Thu, 18 Aug 2022 12:54:23 +0300 Subject: habanalabs: new notifier events for device state Add new notifier events that inform several device states. General H/W error raised on device general H/W error occurs. User engine error is raised when a device engine informs of an error. Signed-off-by: Tal Cohen Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay --- include/uapi/misc/habanalabs.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/misc/habanalabs.h b/include/uapi/misc/habanalabs.h index 3005cc04d4b1..a4bab0fd8223 100644 --- a/include/uapi/misc/habanalabs.h +++ b/include/uapi/misc/habanalabs.h @@ -715,12 +715,16 @@ enum hl_server_type { * HL_NOTIFIER_EVENT_DEVICE_RESET - Indicates device requires a reset * HL_NOTIFIER_EVENT_CS_TIMEOUT - Indicates CS timeout error * HL_NOTIFIER_EVENT_DEVICE_UNAVAILABLE - Indicates device is unavailable + * HL_NOTIFIER_EVENT_USER_ENGINE_ERR - Indicates device engine in error state + * HL_NOTIFIER_EVENT_GENERAL_HW_ERR - Indicates device HW error */ #define HL_NOTIFIER_EVENT_TPC_ASSERT (1ULL << 0) #define HL_NOTIFIER_EVENT_UNDEFINED_OPCODE (1ULL << 1) #define HL_NOTIFIER_EVENT_DEVICE_RESET (1ULL << 2) #define HL_NOTIFIER_EVENT_CS_TIMEOUT (1ULL << 3) #define HL_NOTIFIER_EVENT_DEVICE_UNAVAILABLE (1ULL << 4) +#define HL_NOTIFIER_EVENT_USER_ENGINE_ERR (1ULL << 5) +#define HL_NOTIFIER_EVENT_GENERAL_HW_ERR (1ULL << 6) /* Opcode for management ioctl * -- cgit v1.2.3 From 0c88760f8f5e13e32f624a1da71144b240b05125 Mon Sep 17 00:00:00 2001 From: Dani Liberman Date: Mon, 1 Aug 2022 15:23:44 +0300 Subject: habanalabs/gaudi2: add secured attestation info uapi User will provide a nonce via the ioctl, and will retrieve secured attestation data of the boot, generated using given nonce. Signed-off-by: Dani Liberman Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay --- include/uapi/misc/habanalabs.h | 43 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/misc/habanalabs.h b/include/uapi/misc/habanalabs.h index a4bab0fd8223..e00ebe05097d 100644 --- a/include/uapi/misc/habanalabs.h +++ b/include/uapi/misc/habanalabs.h @@ -773,6 +773,7 @@ enum hl_server_type { * Razwi initiator. * Razwi cause, was it a page fault or MMU access error. * HL_INFO_DEV_MEM_ALLOC_PAGE_SIZES - Retrieve valid page sizes for device memory allocation + * HL_INFO_SECURED_ATTESTATION - Retrieve attestation report of the boot. * HL_INFO_REGISTER_EVENTFD - Register eventfd for event notifications. * HL_INFO_UNREGISTER_EVENTFD - Unregister eventfd * HL_INFO_GET_EVENTS - Retrieve the last occurred events @@ -802,6 +803,7 @@ enum hl_server_type { #define HL_INFO_CS_TIMEOUT_EVENT 24 #define HL_INFO_RAZWI_EVENT 25 #define HL_INFO_DEV_MEM_ALLOC_PAGE_SIZES 26 +#define HL_INFO_SECURED_ATTESTATION 27 #define HL_INFO_REGISTER_EVENTFD 28 #define HL_INFO_UNREGISTER_EVENTFD 29 #define HL_INFO_GET_EVENTS 30 @@ -1133,6 +1135,45 @@ struct hl_info_dev_memalloc_page_sizes { __u64 page_order_bitmask; }; +#define SEC_PCR_DATA_BUF_SZ 256 +#define SEC_PCR_QUOTE_BUF_SZ 510 /* (512 - 2) 2 bytes used for size */ +#define SEC_SIGNATURE_BUF_SZ 255 /* (256 - 1) 1 byte used for size */ +#define SEC_PUB_DATA_BUF_SZ 510 /* (512 - 2) 2 bytes used for size */ +#define SEC_CERTIFICATE_BUF_SZ 2046 /* (2048 - 2) 2 bytes used for size */ + +/* + * struct hl_info_sec_attest - attestation report of the boot + * @nonce: number only used once. random number provided by host. this also passed to the quote + * command as a qualifying data. + * @pcr_quote_len: length of the attestation quote data (bytes) + * @pub_data_len: length of the public data (bytes) + * @certificate_len: length of the certificate (bytes) + * @pcr_num_reg: number of PCR registers in the pcr_data array + * @pcr_reg_len: length of each PCR register in the pcr_data array (bytes) + * @quote_sig_len: length of the attestation report signature (bytes) + * @pcr_data: raw values of the PCR registers + * @pcr_quote: attestation report data structure + * @quote_sig: signature structure of the attestation report + * @public_data: public key for the signed attestation + * (outPublic + name + qualifiedName) + * @certificate: certificate for the attestation signing key + */ +struct hl_info_sec_attest { + __u32 nonce; + __u16 pcr_quote_len; + __u16 pub_data_len; + __u16 certificate_len; + __u8 pcr_num_reg; + __u8 pcr_reg_len; + __u8 quote_sig_len; + __u8 pcr_data[SEC_PCR_DATA_BUF_SZ]; + __u8 pcr_quote[SEC_PCR_QUOTE_BUF_SZ]; + __u8 quote_sig[SEC_SIGNATURE_BUF_SZ]; + __u8 public_data[SEC_PUB_DATA_BUF_SZ]; + __u8 certificate[SEC_CERTIFICATE_BUF_SZ]; + __u8 pad0[2]; +}; + enum gaudi_dcores { HL_GAUDI_WS_DCORE, HL_GAUDI_WN_DCORE, @@ -1158,6 +1199,7 @@ enum gaudi_dcores { * driver. It is possible for the user to allocate buffer larger than * needed, hence updating this variable so user will know the exact amount * of bytes copied by the kernel to the buffer. + * @sec_attest_nonce: Nonce number used for attestation report. * @pad: Padding to 64 bit. */ struct hl_info_args { @@ -1172,6 +1214,7 @@ struct hl_info_args { __u32 pll_index; __u32 eventfd; __u32 user_buffer_actual_size; + __u32 sec_attest_nonce; }; __u32 pad; -- cgit v1.2.3 From bcc57a48eaee63a71983996c4c9d89ce7cbf55d9 Mon Sep 17 00:00:00 2001 From: Andrea Merello Date: Wed, 7 Sep 2022 15:21:52 +0200 Subject: iio: add modifiers for linear acceleration Add IIO_MOD_LINEAR_X, IIO_MOD_LINEAR_Y and IIO_MOD_LINEAR_Z modifiers to te IIO core, which is preparatory for adding the Bosch BNO055 IMU driver. Bosch BNO055 IMU can report raw accelerations (among x, y and z axis) as well as the so called "linear accelerations" (again, among x, y and z axis) which is basically the acceleration after subtracting gravity and for which those new modifiers are for. Signed-off-by: Andrea Merello Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20220907132205.28021-2-andrea.merello@iit.it Signed-off-by: Jonathan Cameron --- include/uapi/linux/iio/types.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include/uapi') diff --git a/include/uapi/linux/iio/types.h b/include/uapi/linux/iio/types.h index 913864221ac4..b7ba9861a24d 100644 --- a/include/uapi/linux/iio/types.h +++ b/include/uapi/linux/iio/types.h @@ -95,6 +95,9 @@ enum iio_modifier { IIO_MOD_ETHANOL, IIO_MOD_H2, IIO_MOD_O2, + IIO_MOD_LINEAR_X, + IIO_MOD_LINEAR_Y, + IIO_MOD_LINEAR_Z, }; enum iio_event_type { @@ -118,4 +121,3 @@ enum iio_event_direction { }; #endif /* _UAPI_IIO_TYPES_H_ */ - -- cgit v1.2.3 From dcedf14553810cd6bbf7227c995beb4548e0859d Mon Sep 17 00:00:00 2001 From: Andrea Merello Date: Wed, 7 Sep 2022 15:21:55 +0200 Subject: iio: add modifers for pitch, yaw, roll Add modifiers for reporting rotations as euler angles (i.e. yaw, pitch and roll). Signed-off-by: Andrea Merello Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20220907132205.28021-5-andrea.merello@iit.it Signed-off-by: Jonathan Cameron --- include/uapi/linux/iio/types.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/iio/types.h b/include/uapi/linux/iio/types.h index b7ba9861a24d..c79f2f046a0b 100644 --- a/include/uapi/linux/iio/types.h +++ b/include/uapi/linux/iio/types.h @@ -98,6 +98,9 @@ enum iio_modifier { IIO_MOD_LINEAR_X, IIO_MOD_LINEAR_Y, IIO_MOD_LINEAR_Z, + IIO_MOD_PITCH, + IIO_MOD_YAW, + IIO_MOD_ROLL, }; enum iio_event_type { -- cgit v1.2.3 From 650ae67bbf7ba5ac193f053969612fbb93247b64 Mon Sep 17 00:00:00 2001 From: William Breathitt Gray Date: Tue, 27 Sep 2022 18:53:38 -0400 Subject: counter: Introduce the Signal polarity component The Signal polarity component represents the active level of a respective Signal. There are two possible states: positive (rising edge) and negative (falling edge); enum counter_signal_polarity represents these states. A convenience macro COUNTER_COMP_POLARITY() is provided for driver authors to declare a Signal polarity component. Cc: Julien Panis Link: https://lore.kernel.org/r/8f47d6e1db71a11bb1e2666f8e2a6e9d256d4131.1664204990.git.william.gray@linaro.org/ Signed-off-by: William Breathitt Gray Link: https://lore.kernel.org/r/b6e53438badcb6318997d13dd2fc052f97d808ac.1664318353.git.william.gray@linaro.org Signed-off-by: Greg Kroah-Hartman --- include/uapi/linux/counter.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/counter.h b/include/uapi/linux/counter.h index 96c5ffd368ad..e9610e1944dc 100644 --- a/include/uapi/linux/counter.h +++ b/include/uapi/linux/counter.h @@ -153,4 +153,10 @@ enum counter_synapse_action { COUNTER_SYNAPSE_ACTION_BOTH_EDGES, }; +/* Signal polarity values */ +enum counter_signal_polarity { + COUNTER_SIGNAL_POLARITY_POSITIVE, + COUNTER_SIGNAL_POLARITY_NEGATIVE, +}; + #endif /* _UAPI_COUNTER_H_ */ -- cgit v1.2.3 From 45d2918520b2d8e640e4fb3fbf664dfb823dc520 Mon Sep 17 00:00:00 2001 From: William Breathitt Gray Date: Tue, 27 Sep 2022 18:53:40 -0400 Subject: counter: Introduce the Count capture component Some devices provide a latch function to save historic Count values. This patch standardizes exposure of such functionality as Count capture components. A COUNTER_COMP_CAPTURE macro is provided for driver authors to define a capture component. A new event COUNTER_EVENT_CAPTURE is introduced to represent Count value capture events. Cc: Julien Panis Link: https://lore.kernel.org/r/c239572ab4208d0d6728136e82a88ad464369a7a.1664204990.git.william.gray@linaro.org/ Signed-off-by: William Breathitt Gray Link: https://lore.kernel.org/r/3cebaa0b807a225eb277d771504fe6dba7269ffd.1664318353.git.william.gray@linaro.org Signed-off-by: Greg Kroah-Hartman --- include/uapi/linux/counter.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/counter.h b/include/uapi/linux/counter.h index e9610e1944dc..8ab12d731e3b 100644 --- a/include/uapi/linux/counter.h +++ b/include/uapi/linux/counter.h @@ -63,6 +63,8 @@ enum counter_event_type { COUNTER_EVENT_INDEX, /* State of counter is changed */ COUNTER_EVENT_CHANGE_OF_STATE, + /* Count value captured */ + COUNTER_EVENT_CAPTURE, }; /** -- cgit v1.2.3