| /* |
| * The driver for the Cirrus Logic's Sound Fusion CS46XX based soundcards |
| * Copyright (c) by Jaroslav Kysela <perex@suse.cz> |
| * |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| * |
| * NOTE: comments are copy/paste from cwcemb80.lst |
| * provided by Tom Woller at Cirrus (my only |
| * documentation about the SP OS running inside |
| * the DSP) |
| */ |
| |
| #ifndef __CS46XX_DSP_TASK_TYPES_H__ |
| #define __CS46XX_DSP_TASK_TYPES_H__ |
| |
| #include "cs46xx_dsp_scb_types.h" |
| |
| /********************************************************************************************* |
| Example hierarchy of stream control blocks in the SP |
| |
| hfgTree |
| Ptr____Call (c) |
| \ |
| -------+------ ------------- ------------- ------------- ----- |
| | SBlaster IF |______\| Foreground |___\| Middlegr'nd |___\| Background |___\| Nul | |
| | |Goto /| tree header |g /| tree header |g /| tree header |g /| SCB |r |
| -------------- (g) ------------- ------------- ------------- ----- |
| |c |c |c |c |
| | | | | |
| \/ ------------- ------------- ------------- |
| | Foreground |_\ | Middlegr'nd |_\ | Background |_\ |
| | tree |g/ | tree |g/ | tree |g/ |
| ------------- ------------- ------------- |
| |c |c |c |
| | | | |
| \/ \/ \/ |
| |
| *********************************************************************************************/ |
| |
| #define HFG_FIRST_EXECUTE_MODE 0x0001 |
| #define HFG_FIRST_EXECUTE_MODE_BIT 0 |
| #define HFG_CONTEXT_SWITCH_MODE 0x0002 |
| #define HFG_CONTEXT_SWITCH_MODE_BIT 1 |
| |
| #define MAX_FG_STACK_SIZE 32 /* THESE NEED TO BE COMPUTED PROPERLY */ |
| #define MAX_MG_STACK_SIZE 16 |
| #define MAX_BG_STACK_SIZE 9 |
| #define MAX_HFG_STACK_SIZE 4 |
| |
| #define SLEEP_ACTIVE_INCREMENT 0 /* Enable task tree thread to go to sleep |
| This should only ever be used on the Background thread */ |
| #define STANDARD_ACTIVE_INCREMENT 1 /* Task tree thread normal operation */ |
| #define SUSPEND_ACTIVE_INCREMENT 2 /* Cause execution to suspend in the task tree thread |
| This should only ever be used on the Background thread */ |
| |
| #define HOSTFLAGS_DISABLE_BG_SLEEP 0 /* Host-controlled flag that determines whether we go to sleep |
| at the end of BG */ |
| |
| /* Minimal context save area for Hyper Forground */ |
| typedef struct _hf_save_area_t { |
| u32 r10_save; |
| u32 r54_save; |
| u32 r98_save; |
| |
| ___DSP_DUAL_16BIT_ALLOC( |
| status_save, |
| ind_save |
| ) |
| |
| ___DSP_DUAL_16BIT_ALLOC( |
| rci1_save, |
| rci0_save |
| ) |
| |
| u32 r32_save; |
| u32 r76_save; |
| u32 rsd2_save; |
| |
| ___DSP_DUAL_16BIT_ALLOC( |
| rsi2_save, /* See TaskTreeParameterBlock for |
| remainder of registers */ |
| rsa2Save |
| ) |
| /* saved as part of HFG context */ |
| } hf_save_area_t; |
| |
| |
| /* Task link data structure */ |
| typedef struct _tree_link_t { |
| ___DSP_DUAL_16BIT_ALLOC( |
| /* Pointer to sibling task control block */ |
| next_scb, |
| /* Pointer to child task control block */ |
| sub_ptr |
| ) |
| |
| ___DSP_DUAL_16BIT_ALLOC( |
| /* Pointer to code entry point */ |
| entry_point, |
| /* Pointer to local data */ |
| this_spb |
| ) |
| } tree_link_t; |
| |
| |
| typedef struct _task_tree_data_t { |
| ___DSP_DUAL_16BIT_ALLOC( |
| /* Initial tock count; controls task tree execution rate */ |
| tock_count_limit, |
| /* Tock down counter */ |
| tock_count |
| ) |
| |
| /* Add to ActiveCount when TockCountLimit reached: |
| Subtract on task tree termination */ |
| ___DSP_DUAL_16BIT_ALLOC( |
| active_tncrement, |
| /* Number of pending activations for task tree */ |
| active_count |
| ) |
| |
| ___DSP_DUAL_16BIT_ALLOC( |
| /* BitNumber to enable modification of correct bit in ActiveTaskFlags */ |
| active_bit, |
| /* Pointer to OS location for indicating current activity on task level */ |
| active_task_flags_ptr |
| ) |
| |
| /* Data structure for controlling movement of memory blocks:- |
| currently unused */ |
| ___DSP_DUAL_16BIT_ALLOC( |
| mem_upd_ptr, |
| /* Data structure for controlling synchronous link update */ |
| link_upd_ptr |
| ) |
| |
| ___DSP_DUAL_16BIT_ALLOC( |
| /* Save area for remainder of full context. */ |
| save_area, |
| /* Address of start of local stack for data storage */ |
| data_stack_base_ptr |
| ) |
| |
| } task_tree_data_t; |
| |
| |
| |
| typedef struct _interval_timer_data_t |
| { |
| /* These data items have the same relative locations to those */ |
| ___DSP_DUAL_16BIT_ALLOC( |
| interval_timer_period, |
| itd_unused |
| ) |
| |
| /* used for this data in the SPOS control block for SPOS 1.0 */ |
| ___DSP_DUAL_16BIT_ALLOC( |
| num_FG_ticks_this_interval, |
| num_intervals |
| ) |
| } interval_timer_data_t; |
| |
| |
| /* This structure contains extra storage for the task tree |
| Currently, this additional data is related only to a full context save */ |
| typedef struct _task_tree_context_block_t { |
| /* Up to 10 values are saved onto the stack. 8 for the task tree, 1 for |
| The access to the context switch (call or interrupt), and 1 spare that |
| users should never use. This last may be required by the system */ |
| ___DSP_DUAL_16BIT_ALLOC( |
| stack1, |
| stack0 |
| ) |
| ___DSP_DUAL_16BIT_ALLOC( |
| stack3, |
| stack2 |
| ) |
| ___DSP_DUAL_16BIT_ALLOC( |
| stack5, |
| stack4 |
| ) |
| ___DSP_DUAL_16BIT_ALLOC( |
| stack7, |
| stack6 |
| ) |
| ___DSP_DUAL_16BIT_ALLOC( |
| stack9, |
| stack8 |
| ) |
| |
| u32 saverfe; |
| |
| /* Value may be overwriten by stack save algorithm. |
| Retain the size of the stack data saved here if used */ |
| ___DSP_DUAL_16BIT_ALLOC( |
| reserved1, |
| stack_size |
| ) |
| u32 saverba; /* (HFG) */ |
| u32 saverdc; |
| u32 savers_config_23; /* (HFG) */ |
| u32 savers_DMA23; /* (HFG) */ |
| u32 saversa0; |
| u32 saversi0; |
| u32 saversa1; |
| u32 saversi1; |
| u32 saversa3; |
| u32 saversd0; |
| u32 saversd1; |
| u32 saversd3; |
| u32 savers_config01; |
| u32 savers_DMA01; |
| u32 saveacc0hl; |
| u32 saveacc1hl; |
| u32 saveacc0xacc1x; |
| u32 saveacc2hl; |
| u32 saveacc3hl; |
| u32 saveacc2xacc3x; |
| u32 saveaux0hl; |
| u32 saveaux1hl; |
| u32 saveaux0xaux1x; |
| u32 saveaux2hl; |
| u32 saveaux3hl; |
| u32 saveaux2xaux3x; |
| u32 savershouthl; |
| u32 savershoutxmacmode; |
| } task_tree_context_block_t; |
| |
| |
| typedef struct _task_tree_control_block_t { |
| hf_save_area_t context; |
| tree_link_t links; |
| task_tree_data_t data; |
| task_tree_context_block_t context_blk; |
| interval_timer_data_t int_timer; |
| } task_tree_control_block_t; |
| |
| |
| #endif /* __DSP_TASK_TYPES_H__ */ |
