1 /*
2  * Copyright (C) 2010-2014 Michael Krufky (mkrufky@linuxtv.org)
3  *
4  *   This program is free software; you can redistribute it and/or modify it
5  *   under the terms of the GNU General Public License as published by the Free
6  *   Software Foundation, version 2.
7  *
8  * see Documentation/media/dvb-drivers/dvb-usb.rst for more information
9  */
10 
11 #ifndef _DVB_USB_MXL111SF_H_
12 #define _DVB_USB_MXL111SF_H_
13 
14 #ifdef DVB_USB_LOG_PREFIX
15 #undef DVB_USB_LOG_PREFIX
16 #endif
17 #define DVB_USB_LOG_PREFIX "mxl111sf"
18 #include "dvb_usb.h"
19 #include <media/tveeprom.h>
20 #include <media/media-entity.h>
21 
22 /* Max transfer size done by I2C transfer functions */
23 #define MXL_MAX_XFER_SIZE  64
24 
25 #define MXL_EP1_REG_READ     1
26 #define MXL_EP2_REG_WRITE    2
27 #define MXL_EP3_INTERRUPT    3
28 #define MXL_EP4_MPEG2        4
29 #define MXL_EP5_I2S          5
30 #define MXL_EP6_656          6
31 #define MXL_EP6_MPEG2        6
32 
33 #ifdef USING_ENUM_mxl111sf_current_mode
34 enum mxl111sf_current_mode {
35 	mxl_mode_dvbt = MXL_EP4_MPEG2,
36 	mxl_mode_mh   = MXL_EP5_I2S,
37 	mxl_mode_atsc = MXL_EP6_MPEG2,
38 };
39 #endif
40 
41 enum mxl111sf_gpio_port_expander {
42 	mxl111sf_gpio_hw,
43 	mxl111sf_PCA9534,
44 };
45 
46 struct mxl111sf_adap_state {
47 	int alt_mode;
48 	int gpio_mode;
49 	int device_mode;
50 	int ep6_clockphase;
51 	int (*fe_init)(struct dvb_frontend *);
52 	int (*fe_sleep)(struct dvb_frontend *);
53 };
54 
55 enum mxl111sf_pads {
56 	MXL111SF_PAD_RF_INPUT,
57 	MXL111SF_PAD_OUTPUT,
58 	MXL111SF_NUM_PADS
59 };
60 
61 struct mxl111sf_state {
62 	struct dvb_usb_device *d;
63 
64 	enum mxl111sf_gpio_port_expander gpio_port_expander;
65 	u8 port_expander_addr;
66 
67 	u8 chip_id;
68 	u8 chip_ver;
69 #define MXL111SF_V6     1
70 #define MXL111SF_V8_100 2
71 #define MXL111SF_V8_200 3
72 	u8 chip_rev;
73 
74 #ifdef USING_ENUM_mxl111sf_current_mode
75 	enum mxl111sf_current_mode current_mode;
76 #endif
77 
78 #define MXL_TUNER_MODE         0
79 #define MXL_SOC_MODE           1
80 #define MXL_DEV_MODE_MASK      0x01
81 #if 1
82 	int device_mode;
83 #endif
84 	/* use usb alt setting 1 for EP4 ISOC transfer (dvb-t),
85 				     EP5 BULK transfer (atsc-mh),
86 				     EP6 BULK transfer (atsc/qam),
87 	   use usb alt setting 2 for EP4 BULK transfer (dvb-t),
88 				     EP5 ISOC transfer (atsc-mh),
89 				     EP6 ISOC transfer (atsc/qam),
90 	 */
91 	int alt_mode;
92 	int gpio_mode;
93 	struct tveeprom tv;
94 
95 	struct mutex fe_lock;
96 	u8 num_frontends;
97 	struct mxl111sf_adap_state adap_state[3];
98 	u8 sndbuf[MXL_MAX_XFER_SIZE];
99 	u8 rcvbuf[MXL_MAX_XFER_SIZE];
100 	struct mutex msg_lock;
101 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
102 	struct media_entity tuner;
103 	struct media_pad tuner_pads[MXL111SF_NUM_PADS];
104 #endif
105 };
106 
107 int mxl111sf_read_reg(struct mxl111sf_state *state, u8 addr, u8 *data);
108 int mxl111sf_write_reg(struct mxl111sf_state *state, u8 addr, u8 data);
109 
110 struct mxl111sf_reg_ctrl_info {
111 	u8 addr;
112 	u8 mask;
113 	u8 data;
114 };
115 
116 int mxl111sf_write_reg_mask(struct mxl111sf_state *state,
117 			    u8 addr, u8 mask, u8 data);
118 int mxl111sf_ctrl_program_regs(struct mxl111sf_state *state,
119 			       struct mxl111sf_reg_ctrl_info *ctrl_reg_info);
120 
121 /* needed for hardware i2c functions in mxl111sf-i2c.c:
122  * mxl111sf_i2c_send_data / mxl111sf_i2c_get_data */
123 int mxl111sf_ctrl_msg(struct mxl111sf_state *state,
124 		      u8 cmd, u8 *wbuf, int wlen, u8 *rbuf, int rlen);
125 
126 #define mxl_printk(kern, fmt, arg...) \
127 	printk(kern "%s: " fmt "\n", __func__, ##arg)
128 
129 #define mxl_info(fmt, arg...) \
130 	mxl_printk(KERN_INFO, fmt, ##arg)
131 
132 extern int dvb_usb_mxl111sf_debug;
133 #define mxl_debug(fmt, arg...) \
134 	if (dvb_usb_mxl111sf_debug) \
135 		mxl_printk(KERN_DEBUG, fmt, ##arg)
136 
137 #define MXL_I2C_DBG 0x04
138 #define MXL_ADV_DBG 0x10
139 #define mxl_debug_adv(fmt, arg...) \
140 	if (dvb_usb_mxl111sf_debug & MXL_ADV_DBG) \
141 		mxl_printk(KERN_DEBUG, fmt, ##arg)
142 
143 #define mxl_i2c(fmt, arg...) \
144 	if (dvb_usb_mxl111sf_debug & MXL_I2C_DBG) \
145 		mxl_printk(KERN_DEBUG, fmt, ##arg)
146 
147 #define mxl_i2c_adv(fmt, arg...) \
148 	if ((dvb_usb_mxl111sf_debug & (MXL_I2C_DBG | MXL_ADV_DBG)) == \
149 		(MXL_I2C_DBG | MXL_ADV_DBG)) \
150 			mxl_printk(KERN_DEBUG, fmt, ##arg)
151 
152 /* The following allows the mxl_fail() macro defined below to work
153  * in externel modules, such as mxl111sf-tuner.ko, even though
154  * dvb_usb_mxl111sf_debug is not defined within those modules */
155 #if (defined(__MXL111SF_TUNER_H__)) || (defined(__MXL111SF_DEMOD_H__))
156 #define MXL_ADV_DEBUG_ENABLED MXL_ADV_DBG
157 #else
158 #define MXL_ADV_DEBUG_ENABLED dvb_usb_mxl111sf_debug
159 #endif
160 
161 #define mxl_fail(ret)							\
162 ({									\
163 	int __ret;							\
164 	__ret = (ret < 0);						\
165 	if ((__ret) && (MXL_ADV_DEBUG_ENABLED & MXL_ADV_DBG))		\
166 		mxl_printk(KERN_ERR, "error %d on line %d",		\
167 			   ret, __LINE__);				\
168 	__ret;								\
169 })
170 
171 #endif /* _DVB_USB_MXL111SF_H_ */
172