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 "mantis_common.h"
22 #include "mantis_core.h"
23 #include "mantis_vp1033.h"
24 #include "mantis_vp1034.h"
25 #include "mantis_vp1041.h"
26 #include "mantis_vp2033.h"
27 #include "mantis_vp2040.h"
28 #include "mantis_vp3030.h"
29
read_eeprom_byte(struct mantis_pci * mantis,u8 * data,u8 length)30 static int read_eeprom_byte(struct mantis_pci *mantis, u8 *data, u8 length)
31 {
32 int err;
33 struct i2c_msg msg[] = {
34 {
35 .addr = 0x50,
36 .flags = 0,
37 .buf = data,
38 .len = 1
39 }, {
40 .addr = 0x50,
41 .flags = I2C_M_RD,
42 .buf = data,
43 .len = length
44 },
45 };
46
47 err = i2c_transfer(&mantis->adapter, msg, 2);
48 if (err < 0) {
49 dprintk(verbose, MANTIS_ERROR, 1,
50 "ERROR: i2c read: < err=%i d0=0x%02x d1=0x%02x >",
51 err, data[0], data[1]);
52
53 return err;
54 }
55
56 return 0;
57 }
58
write_eeprom_byte(struct mantis_pci * mantis,u8 * data,u8 length)59 static int write_eeprom_byte(struct mantis_pci *mantis, u8 *data, u8 length)
60 {
61 int err;
62
63 struct i2c_msg msg = {
64 .addr = 0x50,
65 .flags = 0,
66 .buf = data,
67 .len = length
68 };
69
70 err = i2c_transfer(&mantis->adapter, &msg, 1);
71 if (err < 0) {
72 dprintk(verbose, MANTIS_ERROR, 1,
73 "ERROR: i2c write: < err=%i length=0x%02x d0=0x%02x, d1=0x%02x >",
74 err, length, data[0], data[1]);
75
76 return err;
77 }
78
79 return 0;
80 }
81
get_mac_address(struct mantis_pci * mantis)82 static int get_mac_address(struct mantis_pci *mantis)
83 {
84 int err;
85
86 mantis->mac_address[0] = 0x08;
87 err = read_eeprom_byte(mantis, &mantis->mac_address[0], 6);
88 if (err < 0) {
89 dprintk(verbose, MANTIS_ERROR, 1, "Mantis EEPROM read error");
90
91 return err;
92 }
93 dprintk(verbose, MANTIS_ERROR, 0,
94 " MAC Address=[%pM]\n", mantis->mac_address);
95
96 return 0;
97 }
98
99 #define MANTIS_MODEL_UNKNOWN "UNKNOWN"
100 #define MANTIS_DEV_UNKNOWN "UNKNOWN"
101
102 struct mantis_hwconfig unknown_device = {
103 .model_name = MANTIS_MODEL_UNKNOWN,
104 .dev_type = MANTIS_DEV_UNKNOWN,
105 };
106
mantis_load_config(struct mantis_pci * mantis)107 static void mantis_load_config(struct mantis_pci *mantis)
108 {
109 switch (mantis->subsystem_device) {
110 case MANTIS_VP_1033_DVB_S: /* VP-1033 */
111 mantis->hwconfig = &vp1033_mantis_config;
112 break;
113 case MANTIS_VP_1034_DVB_S: /* VP-1034 */
114 mantis->hwconfig = &vp1034_mantis_config;
115 break;
116 case MANTIS_VP_1041_DVB_S2: /* VP-1041 */
117 case TECHNISAT_SKYSTAR_HD2:
118 mantis->hwconfig = &vp1041_mantis_config;
119 break;
120 case MANTIS_VP_2033_DVB_C: /* VP-2033 */
121 mantis->hwconfig = &vp2033_mantis_config;
122 break;
123 case MANTIS_VP_2040_DVB_C: /* VP-2040 */
124 case TERRATEC_CINERGY_C_PCI: /* VP-2040 clone */
125 case TECHNISAT_CABLESTAR_HD2:
126 mantis->hwconfig = &vp2040_mantis_config;
127 break;
128 case MANTIS_VP_3030_DVB_T: /* VP-3030 */
129 mantis->hwconfig = &vp3030_mantis_config;
130 break;
131 default:
132 mantis->hwconfig = &unknown_device;
133 break;
134 }
135 }
136
mantis_core_init(struct mantis_pci * mantis)137 int mantis_core_init(struct mantis_pci *mantis)
138 {
139 int err = 0;
140
141 mantis_load_config(mantis);
142 dprintk(verbose, MANTIS_ERROR, 0, "found a %s PCI %s device on (%02x:%02x.%x),\n",
143 mantis->hwconfig->model_name, mantis->hwconfig->dev_type,
144 mantis->pdev->bus->number, PCI_SLOT(mantis->pdev->devfn), PCI_FUNC(mantis->pdev->devfn));
145 dprintk(verbose, MANTIS_ERROR, 0, " Mantis Rev %d [%04x:%04x], ",
146 mantis->revision,
147 mantis->subsystem_vendor, mantis->subsystem_device);
148 dprintk(verbose, MANTIS_ERROR, 0,
149 "irq: %d, latency: %d\n memory: 0x%lx, mmio: 0x%p\n",
150 mantis->pdev->irq, mantis->latency,
151 mantis->mantis_addr, mantis->mantis_mmio);
152
153 err = mantis_i2c_init(mantis);
154 if (err < 0) {
155 dprintk(verbose, MANTIS_ERROR, 1, "Mantis I2C init failed");
156 return err;
157 }
158 err = get_mac_address(mantis);
159 if (err < 0) {
160 dprintk(verbose, MANTIS_ERROR, 1, "get MAC address failed");
161 return err;
162 }
163 err = mantis_dma_init(mantis);
164 if (err < 0) {
165 dprintk(verbose, MANTIS_ERROR, 1, "Mantis DMA init failed");
166 return err;
167 }
168 err = mantis_dvb_init(mantis);
169 if (err < 0) {
170 dprintk(verbose, MANTIS_DEBUG, 1, "Mantis DVB init failed");
171 return err;
172 }
173 err = mantis_uart_init(mantis);
174 if (err < 0) {
175 dprintk(verbose, MANTIS_DEBUG, 1, "Mantis UART init failed");
176 return err;
177 }
178
179 return 0;
180 }
181
mantis_core_exit(struct mantis_pci * mantis)182 int mantis_core_exit(struct mantis_pci *mantis)
183 {
184 mantis_dma_stop(mantis);
185 dprintk(verbose, MANTIS_ERROR, 1, "DMA engine stopping");
186
187 mantis_uart_exit(mantis);
188 dprintk(verbose, MANTIS_ERROR, 1, "UART exit failed");
189
190 if (mantis_dma_exit(mantis) < 0)
191 dprintk(verbose, MANTIS_ERROR, 1, "DMA exit failed");
192 if (mantis_dvb_exit(mantis) < 0)
193 dprintk(verbose, MANTIS_ERROR, 1, "DVB exit failed");
194 if (mantis_i2c_exit(mantis) < 0)
195 dprintk(verbose, MANTIS_ERROR, 1, "I2C adapter delete.. failed");
196
197 return 0;
198 }
199
200 /* Turn the given bit on or off. */
gpio_set_bits(struct mantis_pci * mantis,u32 bitpos,u8 value)201 void gpio_set_bits(struct mantis_pci *mantis, u32 bitpos, u8 value)
202 {
203 u32 cur;
204
205 cur = mmread(MANTIS_GPIF_ADDR);
206 if (value)
207 mantis->gpio_status = cur | (1 << bitpos);
208 else
209 mantis->gpio_status = cur & (~(1 << bitpos));
210
211 mmwrite(mantis->gpio_status, MANTIS_GPIF_ADDR);
212 mmwrite(0x00, MANTIS_GPIF_DOUT);
213 udelay(100);
214 }
215
216 /* direction = 0 , no CI passthrough ; 1 , CI passthrough */
mantis_set_direction(struct mantis_pci * mantis,int direction)217 void mantis_set_direction(struct mantis_pci *mantis, int direction)
218 {
219 u32 reg;
220
221 reg = mmread(0x28);
222 dprintk(verbose, MANTIS_DEBUG, 1, "TS direction setup");
223 if (direction == 0x01) {
224 /* to CI */
225 reg |= 0x04;
226 mmwrite(reg, 0x28);
227 reg &= 0xff - 0x04;
228 mmwrite(reg, 0x28);
229 } else {
230 reg &= 0xff - 0x04;
231 mmwrite(reg, 0x28);
232 reg |= 0x04;
233 mmwrite(reg, 0x28);
234 }
235 }
236