diff options
| author | Rafal Jaworowski <raj@semihalf.com> | 2009-01-23 13:27:18 +0100 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2009-02-18 00:39:44 +0100 |
| commit | 923aa48126259c13de95131203f1d28bfa5cb889 (patch) | |
| tree | aa1c893363a1fcfa6a3611d3fcb7bd72dbbcbc05 /api_examples/glue.h | |
| parent | 44a94e596ba0f6d0951b165403c520bf55b1c56f (diff) | |
| download | u-boot-imx-923aa48126259c13de95131203f1d28bfa5cb889.zip u-boot-imx-923aa48126259c13de95131203f1d28bfa5cb889.tar.gz u-boot-imx-923aa48126259c13de95131203f1d28bfa5cb889.tar.bz2 | |
API: Improve glue mid-layer of the API demo application.
- Extend ub_dev_read() and ub_dev_recv() so they return the length actually
read, which allows for better control and error handling (this introduces
additional error code API_ESYSC returned by the glue mid-layer).
- Clean up definitions naming and usage.
- Other minor cosmetics.
Note these changes do not touch the API proper, so the interface between
U-Boot and standalone applications remains unchanged.
Signed-off-by: Rafal Jaworowski <raj@semihalf.com>
Diffstat (limited to 'api_examples/glue.h')
| -rw-r--r-- | api_examples/glue.h | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/api_examples/glue.h b/api_examples/glue.h index 0adb8b3..6bf47d0 100644 --- a/api_examples/glue.h +++ b/api_examples/glue.h @@ -32,6 +32,9 @@ #define API_SEARCH_LEN (3 * 1024 * 1024) /* 3MB search range */ +#define UB_MAX_MR 5 /* max mem regions number */ +#define UB_MAX_DEV 6 /* max devices number */ + extern void *syscall_ptr; extern uint32_t search_hint; @@ -39,9 +42,10 @@ int syscall(int, int *, ...); int api_search_sig(struct api_signature **sig); /* - * ub_ library calls are part of the application, not U-Boot code! They are - * front-end wrappers that are used by the consumer application: they prepare - * arguments for particular syscall and jump to the low level syscall() + * The ub_ library calls are part of the application, not U-Boot code! They + * are front-end wrappers that are used by the consumer application: they + * prepare arguments for particular syscall and jump to the low level + * syscall() */ /* console */ @@ -67,10 +71,10 @@ const char * ub_env_enum(const char *last); int ub_dev_enum(void); int ub_dev_open(int handle); int ub_dev_close(int handle); -int ub_dev_read(int handle, void *buf, - lbasize_t len, lbastart_t start); +int ub_dev_read(int handle, void *buf, lbasize_t len, + lbastart_t start, lbasize_t *rlen); int ub_dev_send(int handle, void *buf, int len); -int ub_dev_recv(int handle, void *buf, int len); +int ub_dev_recv(int handle, void *buf, int len, int *rlen); struct device_info * ub_dev_get(int); #endif /* _API_GLUE_H_ */ |