diff options
Diffstat (limited to 'pci.h')
| -rw-r--r-- | pci.h | 112 |
1 files changed, 84 insertions, 28 deletions
@@ -2,80 +2,136 @@ #define _PCITOOL_PCI_H #define PCILIB_MAX_BANKS 6 +#define PCILIB_REGISTER_TIMEOUT 10000 /**< us */ #include <stdint.h> #include "driver/pciDriver.h" #include "kernel.h" -#define pcilib_memcpy memcpy32 +#define pcilib_memcpy pcilib_memcpy32 +#define pcilib_datacpy pcilib_datacpy32 + +typedef struct pcilib_s pcilib_t; + +typedef uint8_t pcilib_bar_t; /**< Type holding the PCI Bar number */ +typedef uint8_t pcilib_register_t; /**< Type holding the register ID within the Bank */ +typedef uint8_t pcilib_register_addr_t; /**< Type holding the register ID within the Bank */ +typedef uint8_t pcilib_register_bank_t; /**< Type holding the register bank number */ +typedef uint8_t pcilib_register_bank_addr_t; /**< Type holding the register bank number */ +typedef uint8_t pcilib_register_size_t; /**< Type holding the size in bits of the register */ +typedef uint32_t pcilib_register_value_t; /**< Type holding the register value */ + +typedef enum { + PCILIB_LITTLE_ENDIAN = 0, + PCILIB_BIG_ENDIAN +} pcilib_endianess_t; typedef enum { + PCILIB_MODEL_DETECT, PCILIB_MODEL_PCI, PCILIB_MODEL_IPECAMERA } pcilib_model_t; - typedef enum { PCILIB_REGISTER_R = 1, PCILIB_REGISTER_W = 2, PCILIB_REGISTER_RW = 3 } pcilib_register_mode_t; + typedef enum { IPECAMERA_REGISTER_PROTOCOL } pcilib_register_protocol_t; -typedef struct { - uint8_t id; - uint8_t size; - uint32_t defvalue; - pcilib_register_mode_t mode; +#define PCILIB_BAR_DETECT ((pcilib_bar_t)-1) +#define PCILIB_REGISTER_INVALID ((pcilib_register_t)-1) +#define PCILIB_ADDRESS_INVALID ((uintptr_t)-1) +#define PCILIB_REGISTER_BANK0 0 - const char *name; +typedef struct { + pcilib_register_bank_addr_t addr; pcilib_register_protocol_t protocol; - uint64_t read_addr; - uint64_t write_addr; + uintptr_t read_addr; + uintptr_t write_addr; + uint8_t raw_endianess; + + uint8_t access; + uint8_t endianess; +} pcilib_register_bank_description_t; + +typedef struct { + pcilib_register_addr_t addr; + pcilib_register_size_t bits; + pcilib_register_value_t defvalue; + pcilib_register_mode_t mode; + + pcilib_register_bank_t bank; + + const char *name; const char *description; -} pcilib_register_t; +} pcilib_register_description_t; +/** + * Default mappings + */ typedef struct { - uint32_t start; - uint32_t end; + uintptr_t start; + uintptr_t end; + pcilib_register_bank_t bank; } pcilib_register_range_t; +typedef struct { + int (*read)(pcilib_t *ctx, pcilib_register_bank_description_t *bank, pcilib_register_addr_t addr, uint8_t bits, pcilib_register_value_t *value); + int (*write)(pcilib_t *ctx, pcilib_register_bank_description_t *bank, pcilib_register_addr_t addr, uint8_t bits, pcilib_register_value_t value); +} pcilib_protocol_description_t; + #include "ipecamera.h" typedef struct { - pcilib_register_t *registers; + pcilib_register_description_t *registers; + pcilib_register_bank_description_t *banks; pcilib_register_range_t *ranges; } pcilib_model_description_t; #ifdef _PCILIB_PCI_C -pcilib_model_description_t pcilib_model_description[2] = { - { NULL, NULL }, - { ipecamera_registers, ipecamera_register_range } +pcilib_model_description_t pcilib_model[3] = { + { NULL, NULL, NULL }, + { NULL, NULL, NULL }, + { ipecamera_registers, ipecamera_register_banks, ipecamera_register_ranges } +}; + +pcilib_protocol_description_t pcilib_protocol[2] = { + { ipecamera_read, ipecamera_write }, + { NULL, NULL } }; #else -extern pcilib_model_description_t pcilib_model_description[]; +extern void (*pcilib_error)(const char *msg, ...); +extern void (*pcilib_warning)(const char *msg, ...); + +extern pcilib_model_description_t pcilib_model[]; +extern pcilib_protocol_description_t pcilib_protocol[]; #endif /* _PCILIB_PCI_C */ +int pcilib_set_error_handler(void (*err)(const char *msg, ...)); + -int pcilib_open(const char *device); -void pcilib_close(int handle); +pcilib_t *pcilib_open(const char *device, pcilib_model_t model); +void pcilib_close(pcilib_t *ctx); -int pcilib_set_error_handler(void (*err)(const char *msg, ...)); +const pci_board_info *pcilib_get_board_info(pcilib_t *ctx); +pcilib_model_t pcilib_get_model(pcilib_t *ctx); + +void *pcilib_map_bar(pcilib_t *ctx, pcilib_bar_t bar); +void pcilib_unmap_bar(pcilib_t *ctx, pcilib_bar_t bar, void *data); -const pci_board_info *pcilib_get_board_info(int handle); -pcilib_model_t pcilib_detect_model(int handle); -void *pcilib_map_bar(int handle, int bar); -void pcilib_unmap_bar(int handle, int bar, void *data); +pcilib_register_t pcilib_find_register(pcilib_t *ctx, const char *reg); +char *pcilib_resolve_register_address(pcilib_t *ctx, uintptr_t addr); -int pcilib_read(void *buf, int handle, int bar, unsigned long addr, int size); -int pcilib_write(void *buf, int handle, int bar, unsigned long addr, int size); +int pcilib_read(pcilib_t *ctx, pcilib_bar_t bar, uintptr_t addr, size_t size, void *buf); +int pcilib_write(pcilib_t *ctx, pcilib_bar_t bar, uintptr_t addr, size_t size, void *buf); -int pcilib_find_register(pcilib_model_t model, const char *reg); #endif /* _PCITOOL_PCI_H */ |