1 /* SPDX-License-Identifier: GPL-2.0+ */
5 * Header file for the DSP IPC implementation
11 #include <linux/device.h>
12 #include <linux/types.h>
13 #include <linux/mailbox_client.h>
15 #define DSP_MU_CHAN_NUM 4
18 struct imx_dsp_ipc *ipc;
19 struct mbox_client cl;
26 void (*handle_reply)(struct imx_dsp_ipc *ipc);
27 void (*handle_request)(struct imx_dsp_ipc *ipc);
31 /* Host <-> DSP communication uses 2 txdb and 2 rxdb channels */
32 struct imx_dsp_chan chans[DSP_MU_CHAN_NUM];
34 struct imx_dsp_ops *ops;
38 static inline void imx_dsp_set_data(struct imx_dsp_ipc *ipc, void *data)
43 ipc->private_data = data;
46 static inline void *imx_dsp_get_data(struct imx_dsp_ipc *ipc)
51 return ipc->private_data;
54 #if IS_ENABLED(CONFIG_IMX_DSP)
56 int imx_dsp_ring_doorbell(struct imx_dsp_ipc *dsp, unsigned int chan_idx);
60 static inline int imx_dsp_ring_doorbell(struct imx_dsp_ipc *ipc,
61 unsigned int chan_idx)
67 #endif /* _IMX_DSP_IPC_H */