129 lines
3.2 KiB
C
129 lines
3.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
|
|
#ifndef __QCOM_APR_H_
|
|
#define __QCOM_APR_H_
|
|
|
|
#include <linux/spinlock.h>
|
|
#include <linux/device.h>
|
|
#include <linux/mod_devicetable.h>
|
|
#include <dt-bindings/soc/qcom,apr.h>
|
|
|
|
extern struct bus_type aprbus;
|
|
|
|
#define APR_HDR_LEN(hdr_len) ((hdr_len)/4)
|
|
|
|
/*
|
|
* HEADER field
|
|
* version:0:3
|
|
* header_size : 4:7
|
|
* message_type : 8:9
|
|
* reserved: 10:15
|
|
*/
|
|
#define APR_HDR_FIELD(msg_type, hdr_len, ver)\
|
|
(((msg_type & 0x3) << 8) | ((hdr_len & 0xF) << 4) | (ver & 0xF))
|
|
|
|
#define APR_HDR_SIZE sizeof(struct apr_hdr)
|
|
#define APR_SEQ_CMD_HDR_FIELD APR_HDR_FIELD(APR_MSG_TYPE_SEQ_CMD, \
|
|
APR_HDR_LEN(APR_HDR_SIZE), \
|
|
APR_PKT_VER)
|
|
/* Version */
|
|
#define APR_PKT_VER 0x0
|
|
|
|
/* Command and Response Types */
|
|
#define APR_MSG_TYPE_EVENT 0x0
|
|
#define APR_MSG_TYPE_CMD_RSP 0x1
|
|
#define APR_MSG_TYPE_SEQ_CMD 0x2
|
|
#define APR_MSG_TYPE_NSEQ_CMD 0x3
|
|
#define APR_MSG_TYPE_MAX 0x04
|
|
|
|
/* APR Basic Response Message */
|
|
#define APR_BASIC_RSP_RESULT 0x000110E8
|
|
#define APR_RSP_ACCEPTED 0x000100BE
|
|
|
|
struct aprv2_ibasic_rsp_result_t {
|
|
uint32_t opcode;
|
|
uint32_t status;
|
|
};
|
|
|
|
/* hdr field Ver [0:3], Size [4:7], Message type [8:10] */
|
|
#define APR_HDR_FIELD_VER(h) (h & 0x000F)
|
|
#define APR_HDR_FIELD_SIZE(h) ((h & 0x00F0) >> 4)
|
|
#define APR_HDR_FIELD_SIZE_BYTES(h) (((h & 0x00F0) >> 4) * 4)
|
|
#define APR_HDR_FIELD_MT(h) ((h & 0x0300) >> 8)
|
|
|
|
struct apr_hdr {
|
|
uint16_t hdr_field;
|
|
uint16_t pkt_size;
|
|
uint8_t src_svc;
|
|
uint8_t src_domain;
|
|
uint16_t src_port;
|
|
uint8_t dest_svc;
|
|
uint8_t dest_domain;
|
|
uint16_t dest_port;
|
|
uint32_t token;
|
|
uint32_t opcode;
|
|
} __packed;
|
|
|
|
struct apr_pkt {
|
|
struct apr_hdr hdr;
|
|
uint8_t payload[];
|
|
};
|
|
|
|
struct apr_resp_pkt {
|
|
struct apr_hdr hdr;
|
|
void *payload;
|
|
int payload_size;
|
|
};
|
|
|
|
/* Bits 0 to 15 -- Minor version, Bits 16 to 31 -- Major version */
|
|
#define APR_SVC_MAJOR_VERSION(v) ((v >> 16) & 0xFF)
|
|
#define APR_SVC_MINOR_VERSION(v) (v & 0xFF)
|
|
|
|
struct apr_device {
|
|
struct device dev;
|
|
uint16_t svc_id;
|
|
uint16_t domain_id;
|
|
uint32_t version;
|
|
char name[APR_NAME_SIZE];
|
|
spinlock_t lock;
|
|
struct list_head node;
|
|
};
|
|
|
|
#define to_apr_device(d) container_of(d, struct apr_device, dev)
|
|
|
|
struct apr_driver {
|
|
int (*probe)(struct apr_device *sl);
|
|
int (*remove)(struct apr_device *sl);
|
|
int (*callback)(struct apr_device *a,
|
|
struct apr_resp_pkt *d);
|
|
struct device_driver driver;
|
|
const struct apr_device_id *id_table;
|
|
};
|
|
|
|
#define to_apr_driver(d) container_of(d, struct apr_driver, driver)
|
|
|
|
/*
|
|
* use a macro to avoid include chaining to get THIS_MODULE
|
|
*/
|
|
#define apr_driver_register(drv) __apr_driver_register(drv, THIS_MODULE)
|
|
|
|
int __apr_driver_register(struct apr_driver *drv, struct module *owner);
|
|
void apr_driver_unregister(struct apr_driver *drv);
|
|
|
|
/**
|
|
* module_apr_driver() - Helper macro for registering a aprbus driver
|
|
* @__aprbus_driver: aprbus_driver struct
|
|
*
|
|
* Helper macro for aprbus drivers which do not do anything special in
|
|
* module init/exit. This eliminates a lot of boilerplate. Each module
|
|
* may only use this macro once, and calling it replaces module_init()
|
|
* and module_exit()
|
|
*/
|
|
#define module_apr_driver(__apr_driver) \
|
|
module_driver(__apr_driver, apr_driver_register, \
|
|
apr_driver_unregister)
|
|
|
|
int apr_send_pkt(struct apr_device *adev, struct apr_pkt *pkt);
|
|
|
|
#endif /* __QCOM_APR_H_ */
|