diff options
Diffstat (limited to 'drivers/firmware/arm_scmi/common.h')
| -rw-r--r-- | drivers/firmware/arm_scmi/common.h | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/drivers/firmware/arm_scmi/common.h b/drivers/firmware/arm_scmi/common.h index 0c30234f9098..937a930ce87d 100644 --- a/drivers/firmware/arm_scmi/common.h +++ b/drivers/firmware/arm_scmi/common.h @@ -7,6 +7,7 @@ * Copyright (C) 2018 ARM Ltd. */ +#include <linux/bitfield.h> #include <linux/completion.h> #include <linux/device.h> #include <linux/errno.h> @@ -14,10 +15,10 @@ #include <linux/scmi_protocol.h> #include <linux/types.h> -#define PROTOCOL_REV_MINOR_BITS 16 -#define PROTOCOL_REV_MINOR_MASK ((1U << PROTOCOL_REV_MINOR_BITS) - 1) -#define PROTOCOL_REV_MAJOR(x) ((x) >> PROTOCOL_REV_MINOR_BITS) -#define PROTOCOL_REV_MINOR(x) ((x) & PROTOCOL_REV_MINOR_MASK) +#define PROTOCOL_REV_MINOR_MASK GENMASK(15, 0) +#define PROTOCOL_REV_MAJOR_MASK GENMASK(31, 16) +#define PROTOCOL_REV_MAJOR(x) (u16)(FIELD_GET(PROTOCOL_REV_MAJOR_MASK, (x))) +#define PROTOCOL_REV_MINOR(x) (u16)(FIELD_GET(PROTOCOL_REV_MINOR_MASK, (x))) #define MAX_PROTOCOLS_IMP 16 #define MAX_OPPS 16 @@ -50,8 +51,11 @@ struct scmi_msg_resp_prot_version { * @id: The identifier of the command being sent * @protocol_id: The identifier of the protocol used to send @id command * @seq: The token to identify the message. when a message/command returns, - * the platform returns the whole message header unmodified including - * the token. + * the platform returns the whole message header unmodified including + * the token + * @status: Status of the transfer once it's complete + * @poll_completion: Indicate if the transfer needs to be polled for + * completion or interrupt mode is used */ struct scmi_msg_hdr { u8 id; @@ -82,18 +86,16 @@ struct scmi_msg { * buffer for the rx path as we use for the tx path. * @done: completion event */ - struct scmi_xfer { - void *con_priv; struct scmi_msg_hdr hdr; struct scmi_msg tx; struct scmi_msg rx; struct completion done; }; -void scmi_one_xfer_put(const struct scmi_handle *h, struct scmi_xfer *xfer); +void scmi_xfer_put(const struct scmi_handle *h, struct scmi_xfer *xfer); int scmi_do_xfer(const struct scmi_handle *h, struct scmi_xfer *xfer); -int scmi_one_xfer_init(const struct scmi_handle *h, u8 msg_id, u8 prot_id, +int scmi_xfer_get_init(const struct scmi_handle *h, u8 msg_id, u8 prot_id, size_t tx_size, size_t rx_size, struct scmi_xfer **p); int scmi_handle_put(const struct scmi_handle *handle); struct scmi_handle *scmi_handle_get(struct device *dev); |