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/*
* Copyright (C) 2012 Spreadtrum Communications Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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.
*/
#ifndef __SBLOCK_H
#define __SBLOCK_H
/* flag for CMD/DONE msg type */
#define SMSG_CMD_SBLOCK_INIT 0x0001
#define SMSG_DONE_SBLOCK_INIT 0x0002
/* flag for EVENT msg type */
#define SMSG_EVENT_SBLOCK_SEND 0x0001
#define SMSG_EVENT_SBLOCK_RELEASE 0x0002
#define SBLOCK_STATE_IDLE 0
#define SBLOCK_STATE_READY 1
#define SBLOCK_BLK_STATE_DONE 0
#define SBLOCK_BLK_STATE_PENDING 1
struct sblock_blks {
uint32_t addr; /*phy address*/
uint32_t length;
};
/* ring block header */
struct sblock_ring_header {
/* get|send-block info */
uint32_t txblk_addr;
uint32_t txblk_count;
uint32_t txblk_size;
uint32_t txblk_blks;
uint32_t txblk_rdptr;
uint32_t txblk_wrptr;
/* release|recv-block info */
uint32_t rxblk_addr;
uint32_t rxblk_count;
uint32_t rxblk_size;
uint32_t rxblk_blks;
uint32_t rxblk_rdptr;
uint32_t rxblk_wrptr;
};
struct sblock_header {
struct sblock_ring_header ring;
struct sblock_ring_header pool;
};
struct sblock_ring {
struct sblock_header *header;
void *txblk_virt; /* virt of header->txblk_addr */
void *rxblk_virt; /* virt of header->rxblk_addr */
struct sblock_blks *r_txblks; /* virt of header->ring->txblk_blks */
struct sblock_blks *r_rxblks; /* virt of header->ring->rxblk_blks */
struct sblock_blks *p_txblks; /* virt of header->pool->txblk_blks */
struct sblock_blks *p_rxblks; /* virt of header->pool->rxblk_blks */
int *txrecord; /* record the state of every txblk */
int *rxrecord; /* record the state of every rxblk */
int yell; /* need to notify cp */
spinlock_t r_txlock; /* send */
spinlock_t r_rxlock; /* recv */
spinlock_t p_txlock; /* get */
spinlock_t p_rxlock; /* release */
wait_queue_head_t getwait;
wait_queue_head_t recvwait;
};
struct sblock_mgr {
uint8_t dst;
uint8_t channel;
uint32_t state;
void *smem_virt;
uint32_t smem_addr;
uint32_t smem_size;
uint32_t txblksz;
uint32_t rxblksz;
uint32_t txblknum;
uint32_t rxblknum;
struct sblock_ring *ring;
struct task_struct *thread;
void (*handler)(int event, void *data);
void *data;
};
#endif
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