diff options
Diffstat (limited to 'drivers/sipc/sblock.h')
| -rw-r--r-- | drivers/sipc/sblock.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/drivers/sipc/sblock.h b/drivers/sipc/sblock.h new file mode 100644 index 00000000..4d8770b0 --- /dev/null +++ b/drivers/sipc/sblock.h @@ -0,0 +1,103 @@ +/* + * 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 |