1 /*
2  * netup_unidvb.h
3  *
4  * Data type definitions for NetUP Universal Dual DVB-CI
5  *
6  * Copyright (C) 2014 NetUP Inc.
7  * Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru>
8  * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
12  * the Free Software Foundation; either version 2 of the License, or
13  * (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU General Public License for more details.
19  */
20 
21 #include <linux/pci.h>
22 #include <linux/i2c.h>
23 #include <linux/workqueue.h>
24 #include <media/v4l2-common.h>
25 #include <media/v4l2-device.h>
26 #include <media/videobuf2-dvb.h>
27 #include <media/dvb_ca_en50221.h>
28 
29 #define NETUP_UNIDVB_NAME	"netup_unidvb"
30 #define NETUP_UNIDVB_VERSION	"0.0.1"
31 #define NETUP_VENDOR_ID		0x1b55
32 #define NETUP_PCI_DEV_REVISION  0x2
33 
34 /* IRQ-related regisers */
35 #define REG_ISR			0x4890
36 #define REG_ISR_MASKED		0x4892
37 #define REG_IMASK_SET		0x4894
38 #define REG_IMASK_CLEAR		0x4896
39 /* REG_ISR register bits */
40 #define NETUP_UNIDVB_IRQ_SPI	(1 << 0)
41 #define NETUP_UNIDVB_IRQ_I2C0	(1 << 1)
42 #define NETUP_UNIDVB_IRQ_I2C1	(1 << 2)
43 #define NETUP_UNIDVB_IRQ_FRA0	(1 << 4)
44 #define NETUP_UNIDVB_IRQ_FRA1	(1 << 5)
45 #define NETUP_UNIDVB_IRQ_FRB0	(1 << 6)
46 #define NETUP_UNIDVB_IRQ_FRB1	(1 << 7)
47 #define NETUP_UNIDVB_IRQ_DMA1	(1 << 8)
48 #define NETUP_UNIDVB_IRQ_DMA2	(1 << 9)
49 #define NETUP_UNIDVB_IRQ_CI	(1 << 10)
50 #define NETUP_UNIDVB_IRQ_CAM0	(1 << 11)
51 #define NETUP_UNIDVB_IRQ_CAM1	(1 << 12)
52 
53 /* NetUP Universal DVB card hardware revisions and it's PCI device id's:
54  * 1.3 - CXD2841ER demod, ASCOT2E and HORUS3A tuners
55  * 1.4 - CXD2854ER demod, HELENE tuner
56 */
57 enum netup_hw_rev {
58 	NETUP_HW_REV_1_3 = 0x18F6,
59 	NETUP_HW_REV_1_4 = 0x18F7
60 };
61 
62 struct netup_dma {
63 	u8			num;
64 	spinlock_t		lock;
65 	struct netup_unidvb_dev	*ndev;
66 	struct netup_dma_regs __iomem *regs;
67 	u32			ring_buffer_size;
68 	u8			*addr_virt;
69 	dma_addr_t		addr_phys;
70 	u64			addr_last;
71 	u32			high_addr;
72 	u32			data_offset;
73 	u32			data_size;
74 	struct list_head	free_buffers;
75 	struct work_struct	work;
76 	struct timer_list	timeout;
77 };
78 
79 enum netup_i2c_state {
80 	STATE_DONE,
81 	STATE_WAIT,
82 	STATE_WANT_READ,
83 	STATE_WANT_WRITE,
84 	STATE_ERROR
85 };
86 
87 struct netup_i2c_regs;
88 
89 struct netup_i2c {
90 	spinlock_t			lock;
91 	wait_queue_head_t		wq;
92 	struct i2c_adapter		adap;
93 	struct netup_unidvb_dev		*dev;
94 	struct netup_i2c_regs __iomem	*regs;
95 	struct i2c_msg			*msg;
96 	enum netup_i2c_state		state;
97 	u32				xmit_size;
98 };
99 
100 struct netup_ci_state {
101 	struct dvb_ca_en50221		ca;
102 	u8 __iomem			*membase8_config;
103 	u8 __iomem			*membase8_io;
104 	struct netup_unidvb_dev		*dev;
105 	int status;
106 	int nr;
107 };
108 
109 struct netup_spi;
110 
111 struct netup_unidvb_dev {
112 	struct pci_dev			*pci_dev;
113 	int				pci_bus;
114 	int				pci_slot;
115 	int				pci_func;
116 	int				board_num;
117 	int				old_fw;
118 	u32 __iomem			*lmmio0;
119 	u8 __iomem			*bmmio0;
120 	u32 __iomem			*lmmio1;
121 	u8 __iomem			*bmmio1;
122 	u8				*dma_virt;
123 	dma_addr_t			dma_phys;
124 	u32				dma_size;
125 	struct vb2_dvb_frontends	frontends[2];
126 	struct netup_i2c		i2c[2];
127 	struct workqueue_struct		*wq;
128 	struct netup_dma		dma[2];
129 	struct netup_ci_state		ci[2];
130 	struct netup_spi		*spi;
131 	enum netup_hw_rev		rev;
132 };
133 
134 int netup_i2c_register(struct netup_unidvb_dev *ndev);
135 void netup_i2c_unregister(struct netup_unidvb_dev *ndev);
136 irqreturn_t netup_ci_interrupt(struct netup_unidvb_dev *ndev);
137 irqreturn_t netup_i2c_interrupt(struct netup_i2c *i2c);
138 irqreturn_t netup_spi_interrupt(struct netup_spi *spi);
139 int netup_unidvb_ci_register(struct netup_unidvb_dev *dev,
140 			     int num, struct pci_dev *pci_dev);
141 void netup_unidvb_ci_unregister(struct netup_unidvb_dev *dev, int num);
142 int netup_spi_init(struct netup_unidvb_dev *ndev);
143 void netup_spi_release(struct netup_unidvb_dev *ndev);
144