diff options
| author | Russell King | 2005-08-18 11:06:59 +0200 |
|---|---|---|
| committer | Russell King | 2005-08-18 11:06:59 +0200 |
| commit | a4e137ab1447fc5009f21e257971aa60a9ec98fb (patch) | |
| tree | 5ceb2e007a746fa84e45f08fefe6d37a3572fea1 /drivers/mfd/mcp.h | |
| parent | Merge master.kernel.org:/pub/scm/linux/kernel/git/aia21/ntfs-2.6 (diff) | |
| download | kernel-qcow2-linux-a4e137ab1447fc5009f21e257971aa60a9ec98fb.tar.gz kernel-qcow2-linux-a4e137ab1447fc5009f21e257971aa60a9ec98fb.tar.xz kernel-qcow2-linux-a4e137ab1447fc5009f21e257971aa60a9ec98fb.zip | |
[MFD] Add multimedia communication port core support
Add support for the core of the multimedia communication port
framework. This is a port used to communicate with devices
with two DMA paths and a control path.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/mfd/mcp.h')
| -rw-r--r-- | drivers/mfd/mcp.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/drivers/mfd/mcp.h b/drivers/mfd/mcp.h new file mode 100644 index 000000000000..c093a93b8808 --- /dev/null +++ b/drivers/mfd/mcp.h @@ -0,0 +1,66 @@ +/* + * linux/drivers/mfd/mcp.h + * + * Copyright (C) 2001 Russell King, All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License. + */ +#ifndef MCP_H +#define MCP_H + +struct mcp_ops; + +struct mcp { + struct module *owner; + struct mcp_ops *ops; + spinlock_t lock; + int use_count; + unsigned int sclk_rate; + unsigned int rw_timeout; + dma_device_t dma_audio_rd; + dma_device_t dma_audio_wr; + dma_device_t dma_telco_rd; + dma_device_t dma_telco_wr; + struct device attached_device; +}; + +struct mcp_ops { + void (*set_telecom_divisor)(struct mcp *, unsigned int); + void (*set_audio_divisor)(struct mcp *, unsigned int); + void (*reg_write)(struct mcp *, unsigned int, unsigned int); + unsigned int (*reg_read)(struct mcp *, unsigned int); + void (*enable)(struct mcp *); + void (*disable)(struct mcp *); +}; + +void mcp_set_telecom_divisor(struct mcp *, unsigned int); +void mcp_set_audio_divisor(struct mcp *, unsigned int); +void mcp_reg_write(struct mcp *, unsigned int, unsigned int); +unsigned int mcp_reg_read(struct mcp *, unsigned int); +void mcp_enable(struct mcp *); +void mcp_disable(struct mcp *); +#define mcp_get_sclk_rate(mcp) ((mcp)->sclk_rate) + +struct mcp *mcp_host_alloc(struct device *, size_t); +int mcp_host_register(struct mcp *); +void mcp_host_unregister(struct mcp *); + +struct mcp_driver { + struct device_driver drv; + int (*probe)(struct mcp *); + void (*remove)(struct mcp *); + int (*suspend)(struct mcp *, pm_message_t); + int (*resume)(struct mcp *); +}; + +int mcp_driver_register(struct mcp_driver *); +void mcp_driver_unregister(struct mcp_driver *); + +#define mcp_get_drvdata(mcp) dev_get_drvdata(&(mcp)->attached_device) +#define mcp_set_drvdata(mcp,d) dev_set_drvdata(&(mcp)->attached_device, d) + +#define mcp_priv(mcp) ((void *)((mcp)+1)) + +#endif |