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Diffstat (limited to 'drivers/media/dvb/mantis/mantis_ioc.c')
-rw-r--r--drivers/media/dvb/mantis/mantis_ioc.c130
1 files changed, 130 insertions, 0 deletions
diff --git a/drivers/media/dvb/mantis/mantis_ioc.c b/drivers/media/dvb/mantis/mantis_ioc.c
new file mode 100644
index 000000000000..de148ded52d8
--- /dev/null
+++ b/drivers/media/dvb/mantis/mantis_ioc.c
@@ -0,0 +1,130 @@
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#include <linux/kernel.h>
22#include <linux/i2c.h>
23
24#include <linux/signal.h>
25#include <linux/sched.h>
26#include <linux/interrupt.h>
27
28#include "dmxdev.h"
29#include "dvbdev.h"
30#include "dvb_demux.h"
31#include "dvb_frontend.h"
32#include "dvb_net.h"
33
34#include "mantis_common.h"
35#include "mantis_reg.h"
36#include "mantis_ioc.h"
37
38static int read_eeprom_bytes(struct mantis_pci *mantis, u8 reg, u8 *data, u8 length)
39{
40 struct i2c_adapter *adapter = &mantis->adapter;
41 int err;
42 u8 buf = reg;
43
44 struct i2c_msg msg[] = {
45 { .addr = 0x50, .flags = 0, .buf = &buf, .len = 1 },
46 { .addr = 0x50, .flags = I2C_M_RD, .buf = data, .len = length },
47 };
48
49 err = i2c_transfer(adapter, msg, 2);
50 if (err < 0) {
51 dprintk(MANTIS_ERROR, 1, "ERROR: i2c read: < err=%i d0=0x%02x d1=0x%02x >",
52 err, data[0], data[1]);
53
54 return err;
55 }
56
57 return 0;
58}
59int mantis_get_mac(struct mantis_pci *mantis)
60{
61 int err;
62 u8 mac_addr[6] = {0};
63
64 err = read_eeprom_bytes(mantis, 0x08, mac_addr, 6);
65 if (err < 0) {
66 dprintk(MANTIS_ERROR, 1, "ERROR: Mantis EEPROM read error <%d>", err);
67
68 return err;
69 }
70
71 dprintk(MANTIS_ERROR, 0,
72 " MAC Address=[%02x:%02x:%02x:%02x:%02x:%02x]\n",
73 mac_addr[0],
74 mac_addr[1],
75 mac_addr[2],
76 mac_addr[3],
77 mac_addr[4],
78 mac_addr[5]);
79
80 return 0;
81}
82EXPORT_SYMBOL_GPL(mantis_get_mac);
83
84/* Turn the given bit on or off. */
85void gpio_set_bits(struct mantis_pci *mantis, u32 bitpos, u8 value)
86{
87 u32 cur;
88
89 dprintk(MANTIS_DEBUG, 1, "Set Bit <%d> to <%d>", bitpos, value);
90 cur = mmread(MANTIS_GPIF_ADDR);
91 if (value)
92 mantis->gpio_status = cur | (1 << bitpos);
93 else
94 mantis->gpio_status = cur & (~(1 << bitpos));
95
96 dprintk(MANTIS_DEBUG, 1, "GPIO Value <%02x>", mantis->gpio_status);
97 mmwrite(mantis->gpio_status, MANTIS_GPIF_ADDR);
98 mmwrite(0x00, MANTIS_GPIF_DOUT);
99}
100EXPORT_SYMBOL_GPL(gpio_set_bits);
101
102int mantis_stream_control(struct mantis_pci *mantis, enum mantis_stream_control stream_ctl)
103{
104 u32 reg;
105
106 reg = mmread(MANTIS_CONTROL);
107 switch (stream_ctl) {
108 case STREAM_TO_HIF:
109 dprintk(MANTIS_DEBUG, 1, "Set stream to HIF");
110 reg &= 0xff - MANTIS_BYPASS;
111 mmwrite(reg, MANTIS_CONTROL);
112 reg |= MANTIS_BYPASS;
113 mmwrite(reg, MANTIS_CONTROL);
114 break;
115
116 case STREAM_TO_CAM:
117 dprintk(MANTIS_DEBUG, 1, "Set stream to CAM");
118 reg |= MANTIS_BYPASS;
119 mmwrite(reg, MANTIS_CONTROL);
120 reg &= 0xff - MANTIS_BYPASS;
121 mmwrite(reg, MANTIS_CONTROL);
122 break;
123 default:
124 dprintk(MANTIS_ERROR, 1, "Unknown MODE <%02x>", stream_ctl);
125 return -1;
126 }
127
128 return 0;
129}
130EXPORT_SYMBOL_GPL(mantis_stream_control);