/drivers/media/video/omap3isp/ispcsiphy.h

 1/*
 2 * ispcsiphy.h
 3 *
 4 * TI OMAP3 ISP - CSI PHY module
 5 *
 6 * Copyright (C) 2010 Nokia Corporation
 7 * Copyright (C) 2009 Texas Instruments, Inc.
 8 *
 9 * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 *	     Sakari Ailus <sakari.ailus@iki.fi>
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License version 2 as
14 * published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
19 * General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
24 * 02110-1301 USA
25 */
26
27#ifndef OMAP3_ISP_CSI_PHY_H
28#define OMAP3_ISP_CSI_PHY_H
29
30struct isp_csi2_device;
31struct regulator;
32
33struct csiphy_lane {
34	u8 pos;
35	u8 pol;
36};
37
38#define ISP_CSIPHY2_NUM_DATA_LANES	2
39#define ISP_CSIPHY1_NUM_DATA_LANES	1
40
41struct isp_csiphy_lanes_cfg {
42	struct csiphy_lane data[ISP_CSIPHY2_NUM_DATA_LANES];
43	struct csiphy_lane clk;
44};
45
46struct isp_csiphy_dphy_cfg {
47	u8 ths_term;
48	u8 ths_settle;
49	u8 tclk_term;
50	unsigned tclk_miss:1;
51	u8 tclk_settle;
52};
53
54struct isp_csiphy {
55	struct isp_device *isp;
56	struct mutex mutex;	/* serialize csiphy configuration */
57	u8 phy_in_use;
58	struct isp_csi2_device *csi2;
59	struct regulator *vdd;
60
61	/* mem resources - enums as defined in enum isp_mem_resources */
62	unsigned int cfg_regs;
63	unsigned int phy_regs;
64
65	u8 num_data_lanes;	/* number of CSI2 Data Lanes supported */
66	struct isp_csiphy_lanes_cfg lanes;
67	struct isp_csiphy_dphy_cfg dphy;
68};
69
70int omap3isp_csiphy_acquire(struct isp_csiphy *phy);
71void omap3isp_csiphy_release(struct isp_csiphy *phy);
72int omap3isp_csiphy_init(struct isp_device *isp);
73
74#endif	/* OMAP3_ISP_CSI_PHY_H */