80 lines
1.8 KiB
C
80 lines
1.8 KiB
C
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#ifndef __MSGBOX_SX_H
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#define __MSGBOX_SX_H
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#include "hal_msgbox.h"
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#include "errno.h"
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#include <stdint.h>
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enum msgbox_direction {
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MSGBOX_DIRECTION_DSP,
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MSGBOX_DIRECTION_CPU,
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};
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enum msgbox_channel_direction {
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MSGBOX_CHANNEL_RECEIVE,
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MSGBOX_CHANNEL_SEND,
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};
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struct messagebox;
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struct msg_channel {
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struct messagebox *mb;
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enum msgbox_channel_direction dir;
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void *data;
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unsigned char *send;
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int len;
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int idx;
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int (*cb_of_msg_queue)(int queue, void *data);
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int (*cb_tx_done)(unsigned long d, void *data);
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int (*cb_rx)(unsigned long d, void *data);
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int channel;
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};
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/**
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* @base: messagebox base address
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* @this_user: the messagebox user
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*/
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struct messagebox {
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unsigned long base;
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int this_user;
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int (*channel_set_direction)(struct messagebox *, int channel,
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enum msgbox_channel_direction dir);
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int (*channel_irq_set)(struct messagebox *, int channel, int enable);
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int (*channel_read)(struct messagebox *, int channel,
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unsigned long *read);
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int (*channel_write)(struct messagebox *, int channel,
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unsigned long write);
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int (*channel_fifo_len)(struct messagebox *, int channel);
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struct msg_channel msg_handler[0];
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};
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extern struct messagebox *msgbox_dsp;
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extern struct messagebox *msgbox_cpu;
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int messagebox_init_sx(void);
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struct msg_channel *msgbox_alloc_channel_sx(struct messagebox *mb, int channel,
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enum msgbox_channel_direction dir,
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int (*func)(unsigned long, void *),
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void *data);
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void msgbox_free_channel_sx(struct messagebox *mb, struct msg_channel *ch);
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int msgbox_channel_send_data_sx(struct msg_channel *ch, unsigned char *d,
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size_t len);
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#define MSGBOX_CHANNEL_DEPTH 8
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#define MSGBOX_MAX_QUEUE 8
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#define MSGBOX_MAX_USER 2
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int msg_ops_init_sx(struct messagebox *mb);
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int msg_irq_handler_sx(int i, void *mb);
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#endif /* __MSGBOX_SX_H */
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