#include <gctypes.h>
Data Structures | |
| struct | _dsp_task |
Defines | |
| #define | DSPTASK_ATTACH 0x00000001 |
| #define | DSPTASK_CANCEL 0x00000002 |
| #define | DSPTASK_CLEARALL 0x00000000 |
| #define | DSPTASK_DONE 3 |
| #define | DSPTASK_INIT 0 |
| #define | DSPTASK_RUN 1 |
| #define | DSPTASK_YIELD 2 |
Typedefs | |
| typedef void(* | DSPCallback )(void) |
| function pointer typedef for the user's DSP interrupt callback | |
| typedef struct _dsp_task | dsptask_t |
| forward typdef to struct _dsp_task. This struture holds certain DSP task information for execution. | |
| typedef void(* | DSPTaskCallback )(dsptask_t *task) |
| function pointer typedef for the user's DSP task callbacks | |
Functions | |
| dsptask_t * | DSP_AddTask (dsptask_t *task) |
| Add a DSP task to the tasklist and start executing if necessary. | |
| void | DSP_AssertInt () |
| Asserts the processor interface interrupt. | |
| u32 | DSP_CheckMailFrom () |
| Check for mail from DSP. | |
| u32 | DSP_CheckMailTo () |
| Check if mail was sent to DSP. | |
| void | DSP_Halt () |
| void | DSP_Init () |
| Initialize DSP subsystem. | |
| u32 | DSP_ReadCPUtoDSP () |
| Read back CPU->DSP mailbox. | |
| u32 | DSP_ReadMailFrom () |
| Read mail from DSP. | |
| DSPCallback | DSP_RegisterCallback (DSPCallback usr_cb) |
| Register an user's interrupt callback. This may be used to handle DSP interrupts on its own. By default a system default callback is installed on DSP_Init(). | |
| void | DSP_SendMailTo (u32 mail) |
| Send mail to DSP. | |
| void | DSP_Unhalt () |
| struct _dsp_task dsptask_t |
forward typdef to struct _dsp_task. This struture holds certain DSP task information for execution.
| state | current task state set | |
| prio | priority of the task | |
| flags | currnet task flag(s) set. | |
| init_vec | initialization vector. depends on the DSP code to execute. | |
| resume_vec | resume vector. depends on the DSP code to execute. | |
| iram_maddr | main memory address of i-ram image. NOTE: Has to be aligned on a 32byte boundery! | |
| iram_len | size of i-ram image. NOTE: Should be a multiple of 32 | |
| iram_addr | DSP i-ram address to load the image to. | |
| dram_maddr | main memory address of d-ram image. NOTE: Has to be aligned on a 32byte boundery! | |
| dram_len | size of d-ram image. NOTE: Should be a multiple of 32 | |
| dram_addr | DSP d-ram address to load the image to. | |
| init_cb | pointer to the user's init callback function. Called durring task initialization. | |
| res_cb | pointer to the user's resume callback function. Called when the task should resume. | |
| done_cb | pointer to the user's done callback function. Called when the task has finished. | |
| req_cb | pointer to the user's request callback function. Used to retrieve data from main application durring execution. | |
| next | pointer to the next task in the doubly linked list. | |
| prev | pointer to the previous task in the doubly linked list. |
| void(* DSPTaskCallback)(dsptask_t *task) |
function pointer typedef for the user's DSP task callbacks
| [in] | task | pointer to the dsp_task structure. |
Add a DSP task to the tasklist and start executing if necessary.
| [in] | task | pointer to a dsptask_t structure which holds all necessary values for DSP task execution. |
| void DSP_AssertInt | ( | ) |
Asserts the processor interface interrupt.
| u32 DSP_CheckMailFrom | ( | ) |
Check for mail from DSP.
| u32 DSP_CheckMailTo | ( | ) |
Check if mail was sent to DSP.
| void DSP_Init | ( | ) |
Initialize DSP subsystem.
| u32 DSP_ReadCPUtoDSP | ( | ) |
Read back CPU->DSP mailbox.
| u32 DSP_ReadMailFrom | ( | ) |
Read mail from DSP.
| DSPCallback DSP_RegisterCallback | ( | DSPCallback | usr_cb | ) |
Register an user's interrupt callback. This may be used to handle DSP interrupts on its own. By default a system default callback is installed on DSP_Init().
| [in] | user_cb | pointer to the user's interrupt callback function. \ |
| void DSP_SendMailTo | ( | u32 | ) |
Send mail to DSP.
| [in] | value to send |
1.5.4