1 /*
2 	Mantis PCI bridge driver
3 
4 	Copyright (C) Manu Abraham (abraham.manu@gmail.com)
5 
6 	This program is free software; you can redistribute it and/or modify
7 	it under the terms of the GNU General Public License as published by
8 	the Free Software Foundation; either version 2 of the License, or
9 	(at your option) any later version.
10 
11 	This program is distributed in the hope that it will be useful,
12 	but WITHOUT ANY WARRANTY; without even the implied warranty of
13 	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 	GNU General Public License for more details.
15 
16 	You should have received a copy of the GNU General Public License
17 	along with this program; if not, write to the Free Software
18 	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20 
21 #ifndef __MANTIS_COMMON_H
22 #define __MANTIS_COMMON_H
23 
24 #include <linux/interrupt.h>
25 #include <linux/mutex.h>
26 #include <linux/workqueue.h>
27 
28 #include "mantis_reg.h"
29 #include "mantis_uart.h"
30 
31 #include "mantis_link.h"
32 
33 #define MANTIS_ERROR		0
34 #define MANTIS_NOTICE		1
35 #define MANTIS_INFO		2
36 #define MANTIS_DEBUG		3
37 #define MANTIS_TMG		9
38 
39 #define dprintk(y, z, format, arg...) do {								\
40 	if (z) {											\
41 		if	((mantis->verbose > MANTIS_ERROR) && (mantis->verbose > y))			\
42 			printk(KERN_ERR "%s (%d): " format "\n" , __func__ , mantis->num , ##arg);	\
43 		else if	((mantis->verbose > MANTIS_NOTICE) && (mantis->verbose > y))			\
44 			printk(KERN_NOTICE "%s (%d): " format "\n" , __func__ , mantis->num , ##arg);	\
45 		else if ((mantis->verbose > MANTIS_INFO) && (mantis->verbose > y))			\
46 			printk(KERN_INFO "%s (%d): " format "\n" , __func__ , mantis->num , ##arg);	\
47 		else if ((mantis->verbose > MANTIS_DEBUG) && (mantis->verbose > y))			\
48 			printk(KERN_DEBUG "%s (%d): " format "\n" , __func__ , mantis->num , ##arg);	\
49 		else if ((mantis->verbose > MANTIS_TMG) && (mantis->verbose > y))			\
50 			printk(KERN_DEBUG "%s (%d): " format "\n" , __func__ , mantis->num , ##arg);	\
51 	} else {											\
52 		if (mantis->verbose > y)								\
53 			printk(format , ##arg);								\
54 	}												\
55 } while(0)
56 
57 #define mwrite(dat, addr)	writel((dat), addr)
58 #define mread(addr)		readl(addr)
59 
60 #define mmwrite(dat, addr)	mwrite((dat), (mantis->mmio + (addr)))
61 #define mmread(addr)		mread(mantis->mmio + (addr))
62 
63 #define MANTIS_TS_188		0
64 #define MANTIS_TS_204		1
65 
66 #define TWINHAN_TECHNOLOGIES	0x1822
67 #define MANTIS			0x4e35
68 
69 #define TECHNISAT		0x1ae4
70 #define TERRATEC		0x153b
71 
72 #define MAKE_ENTRY(__subven, __subdev, __configptr, __rc) {		\
73 		.vendor		= TWINHAN_TECHNOLOGIES,			\
74 		.device		= MANTIS,				\
75 		.subvendor	= (__subven),				\
76 		.subdevice	= (__subdev),				\
77 		.driver_data	= (unsigned long)			\
78 			&(struct mantis_pci_drvdata){__configptr, __rc}	\
79 }
80 
81 enum mantis_i2c_mode {
82 	MANTIS_PAGE_MODE = 0,
83 	MANTIS_BYTE_MODE,
84 };
85 
86 struct mantis_pci;
87 
88 struct mantis_hwconfig {
89 	char			*model_name;
90 	char			*dev_type;
91 	u32			ts_size;
92 
93 	enum mantis_baud	baud_rate;
94 	enum mantis_parity	parity;
95 	u32			bytes;
96 
97 	irqreturn_t (*irq_handler)(int irq, void *dev_id);
98 	int (*frontend_init)(struct mantis_pci *mantis, struct dvb_frontend *fe);
99 
100 	u8			power;
101 	u8			reset;
102 
103 	enum mantis_i2c_mode	i2c_mode;
104 };
105 
106 struct mantis_pci_drvdata {
107 	struct mantis_hwconfig *hwconfig;
108 	char *rc_map_name;
109 };
110 
111 struct mantis_pci {
112 	unsigned int		verbose;
113 
114 	/*	PCI stuff		*/
115 	u16			vendor_id;
116 	u16			device_id;
117 	u16			subsystem_vendor;
118 	u16			subsystem_device;
119 
120 	u8			latency;
121 
122 	struct pci_dev		*pdev;
123 
124 	unsigned long		mantis_addr;
125 	void __iomem		*mmio;
126 
127 	u8			irq;
128 	u8			revision;
129 
130 	unsigned int		num;
131 
132 	/*	RISC Core		*/
133 	u32			busy_block;
134 	u32			last_block;
135 	u8			*buf_cpu;
136 	dma_addr_t		buf_dma;
137 	__le32			*risc_cpu;
138 	dma_addr_t		risc_dma;
139 
140 	struct tasklet_struct	tasklet;
141 	spinlock_t		intmask_lock;
142 
143 	struct i2c_adapter	adapter;
144 	int			i2c_rc;
145 	wait_queue_head_t	i2c_wq;
146 	struct mutex		i2c_lock;
147 
148 	/*	DVB stuff		*/
149 	struct dvb_adapter	dvb_adapter;
150 	struct dvb_frontend	*fe;
151 	struct dvb_demux	demux;
152 	struct dmxdev		dmxdev;
153 	struct dmx_frontend	fe_hw;
154 	struct dmx_frontend	fe_mem;
155 	struct dvb_net		dvbnet;
156 
157 	u8			feeds;
158 
159 	struct mantis_hwconfig	*hwconfig;
160 
161 	u32			mantis_int_stat;
162 	u32			mantis_int_mask;
163 
164 	/*	board specific		*/
165 	u8			mac_address[8];
166 	u32			sub_vendor_id;
167 	u32			sub_device_id;
168 
169 	 /*	A12 A13 A14		*/
170 	u32			gpio_status;
171 
172 	u32			gpif_status;
173 
174 	struct mantis_ca	*mantis_ca;
175 
176 	struct work_struct	uart_work;
177 
178 	struct rc_dev		*rc;
179 	char			device_name[80];
180 	char			input_phys[80];
181 	char			*rc_map_name;
182 };
183 
184 #define MANTIS_HIF_STATUS	(mantis->gpio_status)
185 
186 static inline void mantis_mask_ints(struct mantis_pci *mantis, u32 mask)
187 {
188 	unsigned long flags;
189 
190 	spin_lock_irqsave(&mantis->intmask_lock, flags);
191 	mmwrite(mmread(MANTIS_INT_MASK) & ~mask, MANTIS_INT_MASK);
192 	spin_unlock_irqrestore(&mantis->intmask_lock, flags);
193 }
194 
195 static inline void mantis_unmask_ints(struct mantis_pci *mantis, u32 mask)
196 {
197 	unsigned long flags;
198 
199 	spin_lock_irqsave(&mantis->intmask_lock, flags);
200 	mmwrite(mmread(MANTIS_INT_MASK) | mask, MANTIS_INT_MASK);
201 	spin_unlock_irqrestore(&mantis->intmask_lock, flags);
202 }
203 
204 #endif /* __MANTIS_COMMON_H */
205