1 /*
2  * arch/arm/plat-omap/include/mach/mcbsp.h
3  *
4  * Defines for Multi-Channel Buffered Serial Port
5  *
6  * Copyright (C) 2002 RidgeRun, Inc.
7  * Author: Steve Johnson
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22  *
23  */
24 #ifndef __ASM_ARCH_OMAP_MCBSP_H
25 #define __ASM_ARCH_OMAP_MCBSP_H
26 
27 #include <linux/spinlock.h>
28 #include <linux/clk.h>
29 
30 #define MCBSP_CONFIG_TYPE2	0x2
31 #define MCBSP_CONFIG_TYPE3	0x3
32 #define MCBSP_CONFIG_TYPE4	0x4
33 
34 /* Platform specific configuration */
35 struct omap_mcbsp_ops {
36 	void (*request)(unsigned int);
37 	void (*free)(unsigned int);
38 };
39 
40 struct omap_mcbsp_platform_data {
41 	struct omap_mcbsp_ops *ops;
42 	u16 buffer_size;
43 	u8 reg_size;
44 	u8 reg_step;
45 
46 	/* McBSP platform and instance specific features */
47 	bool has_wakeup; /* Wakeup capability */
48 	bool has_ccr; /* Transceiver has configuration control registers */
49 	int (*enable_st_clock)(unsigned int, bool);
50 	int (*set_clk_src)(struct device *dev, struct clk *clk, const char *src);
51 	int (*mux_signal)(struct device *dev, const char *signal, const char *src);
52 };
53 
54 /**
55  * omap_mcbsp_dev_attr - OMAP McBSP device attributes for omap_hwmod
56  * @sidetone: name of the sidetone device
57  */
58 struct omap_mcbsp_dev_attr {
59 	const char *sidetone;
60 };
61 
62 #endif
63