1 files changed, 91 insertions, 0 deletions
diff --git a/include/linux/sipc_priv.h b/include/linux/sipc_priv.h
new file mode 100644
index 00000000..5a542a6a
--- /dev/null
+++ b/include/linux/sipc_priv.h
@@ -0,0 +1,91 @@
+/*
+ * 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 __SIPC_PRIV_H
+#define __SIPC_PRIV_H
+
+#define SMSG_CACHE_NR		256
+
+struct smsg_channel {
+	/* wait queue for recv-buffer */
+	wait_queue_head_t	rxwait;
+	struct mutex		rxlock;
+
+	/* cached msgs for recv */
+	uintptr_t 		wrptr[1];
+	uintptr_t 		rdptr[1];
+	struct smsg		caches[SMSG_CACHE_NR];
+};
+
+/* smsg ring-buffer between AP/CP ipc */
+struct smsg_ipc {
+	char			*name;
+	uint8_t			dst;
+	uint8_t			padding[3];
+
+	/* send-buffer info */
+	uintptr_t			txbuf_addr;
+	uint32_t			txbuf_size;	/* must be 2^n */
+	uintptr_t			txbuf_rdptr;
+	uintptr_t			txbuf_wrptr;
+
+	/* recv-buffer info */
+	uintptr_t			rxbuf_addr;
+	uint32_t			rxbuf_size;	/* must be 2^n */
+	uintptr_t			rxbuf_rdptr;
+	uintptr_t			rxbuf_wrptr;
+
+#ifdef 	CONFIG_SPRD_MAILBOX
+	/* target core_id over mailbox */
+	int 			core_id;
+#endif
+
+	/* sipc irq related */
+	int			irq;
+	irq_handler_t		irq_handler;
+	irq_handler_t		irq_threadfn;
+
+	uint32_t 		(*rxirq_status)(void);
+	void			(*rxirq_clear)(void);
+	void			(*txirq_trigger)(void);
+
+	/* sipc ctrl thread */
+	struct task_struct	*thread;
+
+	/* lock for send-buffer */
+	spinlock_t		txpinlock;
+
+	/* all fixed channels receivers */
+	struct smsg_channel	*channels[SMSG_CH_NR];
+
+	/* record the runtime status of smsg channel */
+	atomic_t 		busy[SMSG_CH_NR];
+
+	/* all channel states: 0 unused, 1 opened */
+	uint8_t			states[SMSG_CH_NR];
+};
+
+#define CHAN_STATE_UNUSED	0
+#define CHAN_STATE_WAITING 	1
+#define CHAN_STATE_OPENED	2
+#define CHAN_STATE_FREE 	3
+
+/* create/destroy smsg ipc between AP/CP */
+int smsg_ipc_create(uint8_t dst, struct smsg_ipc *ipc);
+int smsg_ipc_destroy(uint8_t dst);
+int  smsg_suspend_init(void);
+
+/* initialize smem pool for AP/CP */
+int smem_init(uint32_t addr, uint32_t size);
+
+#endif