1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 Mantis PCI bridge driver
4
5 Copyright (C) Manu Abraham (abraham.manu@gmail.com)
6
7 */
8
9 #include "mantis_common.h"
10 #include "mantis_core.h"
11 #include "mantis_vp1033.h"
12 #include "mantis_vp1034.h"
13 #include "mantis_vp1041.h"
14 #include "mantis_vp2033.h"
15 #include "mantis_vp2040.h"
16 #include "mantis_vp3030.h"
17
read_eeprom_byte(struct mantis_pci * mantis,u8 * data,u8 length)18 static int read_eeprom_byte(struct mantis_pci *mantis, u8 *data, u8 length)
19 {
20 int err;
21 struct i2c_msg msg[] = {
22 {
23 .addr = 0x50,
24 .flags = 0,
25 .buf = data,
26 .len = 1
27 }, {
28 .addr = 0x50,
29 .flags = I2C_M_RD,
30 .buf = data,
31 .len = length
32 },
33 };
34
35 err = i2c_transfer(&mantis->adapter, msg, 2);
36 if (err < 0) {
37 dprintk(verbose, MANTIS_ERROR, 1,
38 "ERROR: i2c read: < err=%i d0=0x%02x d1=0x%02x >",
39 err, data[0], data[1]);
40
41 return err;
42 }
43
44 return 0;
45 }
46
get_mac_address(struct mantis_pci * mantis)47 static int get_mac_address(struct mantis_pci *mantis)
48 {
49 int err;
50
51 mantis->mac_address[0] = 0x08;
52 err = read_eeprom_byte(mantis, &mantis->mac_address[0], 6);
53 if (err < 0) {
54 dprintk(verbose, MANTIS_ERROR, 1, "Mantis EEPROM read error");
55
56 return err;
57 }
58 dprintk(verbose, MANTIS_ERROR, 0,
59 " MAC Address=[%pM]\n", mantis->mac_address);
60
61 return 0;
62 }
63
64 #define MANTIS_MODEL_UNKNOWN "UNKNOWN"
65 #define MANTIS_DEV_UNKNOWN "UNKNOWN"
66
67 struct mantis_hwconfig unknown_device = {
68 .model_name = MANTIS_MODEL_UNKNOWN,
69 .dev_type = MANTIS_DEV_UNKNOWN,
70 };
71
mantis_load_config(struct mantis_pci * mantis)72 static void mantis_load_config(struct mantis_pci *mantis)
73 {
74 switch (mantis->subsystem_device) {
75 case MANTIS_VP_1033_DVB_S: /* VP-1033 */
76 mantis->hwconfig = &vp1033_mantis_config;
77 break;
78 case MANTIS_VP_1034_DVB_S: /* VP-1034 */
79 mantis->hwconfig = &vp1034_mantis_config;
80 break;
81 case MANTIS_VP_1041_DVB_S2: /* VP-1041 */
82 case TECHNISAT_SKYSTAR_HD2:
83 mantis->hwconfig = &vp1041_mantis_config;
84 break;
85 case MANTIS_VP_2033_DVB_C: /* VP-2033 */
86 mantis->hwconfig = &vp2033_mantis_config;
87 break;
88 case MANTIS_VP_2040_DVB_C: /* VP-2040 */
89 case CINERGY_C: /* VP-2040 clone */
90 case TECHNISAT_CABLESTAR_HD2:
91 mantis->hwconfig = &vp2040_mantis_config;
92 break;
93 case MANTIS_VP_3030_DVB_T: /* VP-3030 */
94 mantis->hwconfig = &vp3030_mantis_config;
95 break;
96 default:
97 mantis->hwconfig = &unknown_device;
98 break;
99 }
100 }
101
mantis_core_init(struct mantis_pci * mantis)102 int mantis_core_init(struct mantis_pci *mantis)
103 {
104 int err = 0;
105
106 mantis_load_config(mantis);
107 dprintk(verbose, MANTIS_ERROR, 0, "found a %s PCI %s device on (%02x:%02x.%x),\n",
108 mantis->hwconfig->model_name, mantis->hwconfig->dev_type,
109 mantis->pdev->bus->number, PCI_SLOT(mantis->pdev->devfn), PCI_FUNC(mantis->pdev->devfn));
110 dprintk(verbose, MANTIS_ERROR, 0, " Mantis Rev %d [%04x:%04x], ",
111 mantis->revision,
112 mantis->subsystem_vendor, mantis->subsystem_device);
113 dprintk(verbose, MANTIS_ERROR, 0,
114 "irq: %d, latency: %d\n memory: 0x%lx, mmio: 0x%p\n",
115 mantis->pdev->irq, mantis->latency,
116 mantis->mantis_addr, mantis->mantis_mmio);
117
118 err = mantis_i2c_init(mantis);
119 if (err < 0) {
120 dprintk(verbose, MANTIS_ERROR, 1, "Mantis I2C init failed");
121 return err;
122 }
123 err = get_mac_address(mantis);
124 if (err < 0) {
125 dprintk(verbose, MANTIS_ERROR, 1, "get MAC address failed");
126 return err;
127 }
128 err = mantis_dma_init(mantis);
129 if (err < 0) {
130 dprintk(verbose, MANTIS_ERROR, 1, "Mantis DMA init failed");
131 return err;
132 }
133 err = mantis_dvb_init(mantis);
134 if (err < 0) {
135 dprintk(verbose, MANTIS_DEBUG, 1, "Mantis DVB init failed");
136 return err;
137 }
138 err = mantis_uart_init(mantis);
139 if (err < 0) {
140 dprintk(verbose, MANTIS_DEBUG, 1, "Mantis UART init failed");
141 return err;
142 }
143
144 return 0;
145 }
146
mantis_core_exit(struct mantis_pci * mantis)147 int mantis_core_exit(struct mantis_pci *mantis)
148 {
149 mantis_dma_stop(mantis);
150 dprintk(verbose, MANTIS_ERROR, 1, "DMA engine stopping");
151
152 mantis_uart_exit(mantis);
153 dprintk(verbose, MANTIS_ERROR, 1, "UART exit failed");
154
155 if (mantis_dma_exit(mantis) < 0)
156 dprintk(verbose, MANTIS_ERROR, 1, "DMA exit failed");
157 if (mantis_dvb_exit(mantis) < 0)
158 dprintk(verbose, MANTIS_ERROR, 1, "DVB exit failed");
159 if (mantis_i2c_exit(mantis) < 0)
160 dprintk(verbose, MANTIS_ERROR, 1, "I2C adapter delete.. failed");
161
162 return 0;
163 }
164
165 /* Turn the given bit on or off. */
gpio_set_bits(struct mantis_pci * mantis,u32 bitpos,u8 value)166 void gpio_set_bits(struct mantis_pci *mantis, u32 bitpos, u8 value)
167 {
168 u32 cur;
169
170 cur = mmread(MANTIS_GPIF_ADDR);
171 if (value)
172 mantis->gpio_status = cur | (1 << bitpos);
173 else
174 mantis->gpio_status = cur & (~(1 << bitpos));
175
176 mmwrite(mantis->gpio_status, MANTIS_GPIF_ADDR);
177 mmwrite(0x00, MANTIS_GPIF_DOUT);
178 udelay(100);
179 }
180
181 /* direction = 0 , no CI passthrough ; 1 , CI passthrough */
mantis_set_direction(struct mantis_pci * mantis,int direction)182 void mantis_set_direction(struct mantis_pci *mantis, int direction)
183 {
184 u32 reg;
185
186 reg = mmread(0x28);
187 dprintk(verbose, MANTIS_DEBUG, 1, "TS direction setup");
188 if (direction == 0x01) {
189 /* to CI */
190 reg |= 0x04;
191 mmwrite(reg, 0x28);
192 reg &= 0xff - 0x04;
193 mmwrite(reg, 0x28);
194 } else {
195 reg &= 0xff - 0x04;
196 mmwrite(reg, 0x28);
197 reg |= 0x04;
198 mmwrite(reg, 0x28);
199 }
200 }
201
