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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 Mantis PCI bridge driver
4 Copyright (C) Manu Abraham (abraham.manu@gmail.com)
5
6*/
7
8#include <linux/kernel.h>
9#include <linux/bitops.h>
10
11#include <linux/signal.h>
12#include <linux/sched.h>
13#include <linux/interrupt.h>
14#include <linux/pci.h>
15#include <linux/i2c.h>
16
17#include <media/dmxdev.h>
18#include <media/dvbdev.h>
19#include <media/dvb_demux.h>
20#include <media/dvb_frontend.h>
21#include <media/dvb_net.h>
22
23#include "mantis_common.h"
24#include "mantis_dma.h"
25#include "mantis_ca.h"
26#include "mantis_ioc.h"
27#include "mantis_dvb.h"
28
29DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
30
31int mantis_frontend_power(struct mantis_pci *mantis, enum mantis_power power)
32{
33 struct mantis_hwconfig *config = mantis->hwconfig;
34
35 switch (power) {
36 case POWER_ON:
37 dprintk(MANTIS_DEBUG, 1, "Power ON");
38 mantis_gpio_set_bits(mantis, config->power, POWER_ON);
39 msleep(100);
40 mantis_gpio_set_bits(mantis, config->power, POWER_ON);
41 msleep(100);
42 break;
43
44 case POWER_OFF:
45 dprintk(MANTIS_DEBUG, 1, "Power OFF");
46 mantis_gpio_set_bits(mantis, config->power, POWER_OFF);
47 msleep(100);
48 break;
49
50 default:
51 dprintk(MANTIS_DEBUG, 1, "Unknown state <%02x>", power);
52 return -1;
53 }
54
55 return 0;
56}
57EXPORT_SYMBOL_GPL(mantis_frontend_power);
58
59void mantis_frontend_soft_reset(struct mantis_pci *mantis)
60{
61 struct mantis_hwconfig *config = mantis->hwconfig;
62
63 dprintk(MANTIS_DEBUG, 1, "Frontend RESET");
64 mantis_gpio_set_bits(mantis, config->reset, 0);
65 msleep(100);
66 mantis_gpio_set_bits(mantis, config->reset, 0);
67 msleep(100);
68 mantis_gpio_set_bits(mantis, config->reset, 1);
69 msleep(100);
70 mantis_gpio_set_bits(mantis, config->reset, 1);
71 msleep(100);
72
73 return;
74}
75EXPORT_SYMBOL_GPL(mantis_frontend_soft_reset);
76
77static int mantis_frontend_shutdown(struct mantis_pci *mantis)
78{
79 int err;
80
81 mantis_frontend_soft_reset(mantis);
82 err = mantis_frontend_power(mantis, POWER_OFF);
83 if (err != 0) {
84 dprintk(MANTIS_ERROR, 1, "Frontend POWER OFF failed! <%d>", err);
85 return 1;
86 }
87
88 return 0;
89}
90
91static int mantis_dvb_start_feed(struct dvb_demux_feed *dvbdmxfeed)
92{
93 struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
94 struct mantis_pci *mantis = dvbdmx->priv;
95
96 dprintk(MANTIS_DEBUG, 1, "Mantis DVB Start feed");
97 if (!dvbdmx->dmx.frontend) {
98 dprintk(MANTIS_DEBUG, 1, "no frontend ?");
99 return -EINVAL;
100 }
101
102 mantis->feeds++;
103 dprintk(MANTIS_DEBUG, 1, "mantis start feed, feeds=%d", mantis->feeds);
104
105 if (mantis->feeds == 1) {
106 dprintk(MANTIS_DEBUG, 1, "mantis start feed & dma");
107 mantis_dma_start(mantis);
108 tasklet_enable(&mantis->tasklet);
109 }
110
111 return mantis->feeds;
112}
113
114static int mantis_dvb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
115{
116 struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
117 struct mantis_pci *mantis = dvbdmx->priv;
118
119 dprintk(MANTIS_DEBUG, 1, "Mantis DVB Stop feed");
120 if (!dvbdmx->dmx.frontend) {
121 dprintk(MANTIS_DEBUG, 1, "no frontend ?");
122 return -EINVAL;
123 }
124
125 mantis->feeds--;
126 if (mantis->feeds == 0) {
127 dprintk(MANTIS_DEBUG, 1, "mantis stop feed and dma");
128 tasklet_disable(&mantis->tasklet);
129 mantis_dma_stop(mantis);
130 }
131
132 return 0;
133}
134
135int mantis_dvb_init(struct mantis_pci *mantis)
136{
137 struct mantis_hwconfig *config = mantis->hwconfig;
138 int result;
139
140 dprintk(MANTIS_DEBUG, 1, "dvb_register_adapter");
141
142 result = dvb_register_adapter(&mantis->dvb_adapter,
143 "Mantis DVB adapter",
144 THIS_MODULE,
145 &mantis->pdev->dev,
146 adapter_nr);
147
148 if (result < 0) {
149
150 dprintk(MANTIS_ERROR, 1, "Error registering adapter");
151 return -ENODEV;
152 }
153
154 mantis->dvb_adapter.priv = mantis;
155 mantis->demux.dmx.capabilities = DMX_TS_FILTERING |
156 DMX_SECTION_FILTERING |
157 DMX_MEMORY_BASED_FILTERING;
158
159 mantis->demux.priv = mantis;
160 mantis->demux.filternum = 256;
161 mantis->demux.feednum = 256;
162 mantis->demux.start_feed = mantis_dvb_start_feed;
163 mantis->demux.stop_feed = mantis_dvb_stop_feed;
164 mantis->demux.write_to_decoder = NULL;
165
166 dprintk(MANTIS_DEBUG, 1, "dvb_dmx_init");
167 result = dvb_dmx_init(&mantis->demux);
168 if (result < 0) {
169 dprintk(MANTIS_ERROR, 1, "dvb_dmx_init failed, ERROR=%d", result);
170
171 goto err0;
172 }
173
174 mantis->dmxdev.filternum = 256;
175 mantis->dmxdev.demux = &mantis->demux.dmx;
176 mantis->dmxdev.capabilities = 0;
177 dprintk(MANTIS_DEBUG, 1, "dvb_dmxdev_init");
178
179 result = dvb_dmxdev_init(&mantis->dmxdev, &mantis->dvb_adapter);
180 if (result < 0) {
181
182 dprintk(MANTIS_ERROR, 1, "dvb_dmxdev_init failed, ERROR=%d", result);
183 goto err1;
184 }
185
186 mantis->fe_hw.source = DMX_FRONTEND_0;
187 result = mantis->demux.dmx.add_frontend(&mantis->demux.dmx, &mantis->fe_hw);
188 if (result < 0) {
189
190 dprintk(MANTIS_ERROR, 1, "dvb_dmx_init failed, ERROR=%d", result);
191 goto err2;
192 }
193
194 mantis->fe_mem.source = DMX_MEMORY_FE;
195 result = mantis->demux.dmx.add_frontend(&mantis->demux.dmx, &mantis->fe_mem);
196 if (result < 0) {
197 dprintk(MANTIS_ERROR, 1, "dvb_dmx_init failed, ERROR=%d", result);
198 goto err3;
199 }
200
201 result = mantis->demux.dmx.connect_frontend(&mantis->demux.dmx, &mantis->fe_hw);
202 if (result < 0) {
203 dprintk(MANTIS_ERROR, 1, "dvb_dmx_init failed, ERROR=%d", result);
204 goto err4;
205 }
206
207 dvb_net_init(&mantis->dvb_adapter, &mantis->dvbnet, &mantis->demux.dmx);
208 tasklet_setup(&mantis->tasklet, mantis_dma_xfer);
209 tasklet_disable(&mantis->tasklet);
210 if (mantis->hwconfig) {
211 result = config->frontend_init(mantis, mantis->fe);
212 if (result < 0) {
213 dprintk(MANTIS_ERROR, 1, "!!! NO Frontends found !!!");
214 goto err5;
215 } else {
216 if (mantis->fe == NULL) {
217 result = -ENOMEM;
218 dprintk(MANTIS_ERROR, 1, "FE <NULL>");
219 goto err5;
220 }
221 result = dvb_register_frontend(&mantis->dvb_adapter, mantis->fe);
222 if (result) {
223 dprintk(MANTIS_ERROR, 1, "ERROR: Frontend registration failed");
224
225 if (mantis->fe->ops.release)
226 mantis->fe->ops.release(mantis->fe);
227
228 mantis->fe = NULL;
229 goto err5;
230 }
231 }
232 }
233
234 return 0;
235
236 /* Error conditions .. */
237err5:
238 tasklet_kill(&mantis->tasklet);
239 dvb_net_release(&mantis->dvbnet);
240 if (mantis->fe) {
241 dvb_unregister_frontend(mantis->fe);
242 dvb_frontend_detach(mantis->fe);
243 }
244err4:
245 mantis->demux.dmx.remove_frontend(&mantis->demux.dmx, &mantis->fe_mem);
246
247err3:
248 mantis->demux.dmx.remove_frontend(&mantis->demux.dmx, &mantis->fe_hw);
249
250err2:
251 dvb_dmxdev_release(&mantis->dmxdev);
252
253err1:
254 dvb_dmx_release(&mantis->demux);
255
256err0:
257 dvb_unregister_adapter(&mantis->dvb_adapter);
258
259 return result;
260}
261EXPORT_SYMBOL_GPL(mantis_dvb_init);
262
263int mantis_dvb_exit(struct mantis_pci *mantis)
264{
265 int err;
266
267 if (mantis->fe) {
268 /* mantis_ca_exit(mantis); */
269 err = mantis_frontend_shutdown(mantis);
270 if (err != 0)
271 dprintk(MANTIS_ERROR, 1, "Frontend exit while POWER ON! <%d>", err);
272 dvb_unregister_frontend(mantis->fe);
273 dvb_frontend_detach(mantis->fe);
274 }
275
276 tasklet_kill(&mantis->tasklet);
277 dvb_net_release(&mantis->dvbnet);
278
279 mantis->demux.dmx.remove_frontend(&mantis->demux.dmx, &mantis->fe_mem);
280 mantis->demux.dmx.remove_frontend(&mantis->demux.dmx, &mantis->fe_hw);
281
282 dvb_dmxdev_release(&mantis->dmxdev);
283 dvb_dmx_release(&mantis->demux);
284
285 dprintk(MANTIS_DEBUG, 1, "dvb_unregister_adapter");
286 dvb_unregister_adapter(&mantis->dvb_adapter);
287
288 return 0;
289}
290EXPORT_SYMBOL_GPL(mantis_dvb_exit);
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 Mantis PCI bridge driver
4 Copyright (C) Manu Abraham (abraham.manu@gmail.com)
5
6*/
7
8#include <linux/kernel.h>
9#include <linux/bitops.h>
10
11#include <linux/signal.h>
12#include <linux/sched.h>
13#include <linux/interrupt.h>
14#include <linux/pci.h>
15#include <linux/i2c.h>
16
17#include <media/dmxdev.h>
18#include <media/dvbdev.h>
19#include <media/dvb_demux.h>
20#include <media/dvb_frontend.h>
21#include <media/dvb_net.h>
22
23#include "mantis_common.h"
24#include "mantis_dma.h"
25#include "mantis_ca.h"
26#include "mantis_ioc.h"
27#include "mantis_dvb.h"
28
29DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
30
31int mantis_frontend_power(struct mantis_pci *mantis, enum mantis_power power)
32{
33 struct mantis_hwconfig *config = mantis->hwconfig;
34
35 switch (power) {
36 case POWER_ON:
37 dprintk(MANTIS_DEBUG, 1, "Power ON");
38 mantis_gpio_set_bits(mantis, config->power, POWER_ON);
39 msleep(100);
40 mantis_gpio_set_bits(mantis, config->power, POWER_ON);
41 msleep(100);
42 break;
43
44 case POWER_OFF:
45 dprintk(MANTIS_DEBUG, 1, "Power OFF");
46 mantis_gpio_set_bits(mantis, config->power, POWER_OFF);
47 msleep(100);
48 break;
49
50 default:
51 dprintk(MANTIS_DEBUG, 1, "Unknown state <%02x>", power);
52 return -1;
53 }
54
55 return 0;
56}
57EXPORT_SYMBOL_GPL(mantis_frontend_power);
58
59void mantis_frontend_soft_reset(struct mantis_pci *mantis)
60{
61 struct mantis_hwconfig *config = mantis->hwconfig;
62
63 dprintk(MANTIS_DEBUG, 1, "Frontend RESET");
64 mantis_gpio_set_bits(mantis, config->reset, 0);
65 msleep(100);
66 mantis_gpio_set_bits(mantis, config->reset, 0);
67 msleep(100);
68 mantis_gpio_set_bits(mantis, config->reset, 1);
69 msleep(100);
70 mantis_gpio_set_bits(mantis, config->reset, 1);
71 msleep(100);
72
73 return;
74}
75EXPORT_SYMBOL_GPL(mantis_frontend_soft_reset);
76
77static int mantis_frontend_shutdown(struct mantis_pci *mantis)
78{
79 int err;
80
81 mantis_frontend_soft_reset(mantis);
82 err = mantis_frontend_power(mantis, POWER_OFF);
83 if (err != 0) {
84 dprintk(MANTIS_ERROR, 1, "Frontend POWER OFF failed! <%d>", err);
85 return 1;
86 }
87
88 return 0;
89}
90
91static int mantis_dvb_start_feed(struct dvb_demux_feed *dvbdmxfeed)
92{
93 struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
94 struct mantis_pci *mantis = dvbdmx->priv;
95
96 dprintk(MANTIS_DEBUG, 1, "Mantis DVB Start feed");
97 if (!dvbdmx->dmx.frontend) {
98 dprintk(MANTIS_DEBUG, 1, "no frontend ?");
99 return -EINVAL;
100 }
101
102 mantis->feeds++;
103 dprintk(MANTIS_DEBUG, 1, "mantis start feed, feeds=%d", mantis->feeds);
104
105 if (mantis->feeds == 1) {
106 dprintk(MANTIS_DEBUG, 1, "mantis start feed & dma");
107 mantis_dma_start(mantis);
108 tasklet_enable(&mantis->tasklet);
109 }
110
111 return mantis->feeds;
112}
113
114static int mantis_dvb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
115{
116 struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
117 struct mantis_pci *mantis = dvbdmx->priv;
118
119 dprintk(MANTIS_DEBUG, 1, "Mantis DVB Stop feed");
120 if (!dvbdmx->dmx.frontend) {
121 dprintk(MANTIS_DEBUG, 1, "no frontend ?");
122 return -EINVAL;
123 }
124
125 mantis->feeds--;
126 if (mantis->feeds == 0) {
127 dprintk(MANTIS_DEBUG, 1, "mantis stop feed and dma");
128 tasklet_disable(&mantis->tasklet);
129 mantis_dma_stop(mantis);
130 }
131
132 return 0;
133}
134
135int mantis_dvb_init(struct mantis_pci *mantis)
136{
137 struct mantis_hwconfig *config = mantis->hwconfig;
138 int result;
139
140 dprintk(MANTIS_DEBUG, 1, "dvb_register_adapter");
141
142 result = dvb_register_adapter(&mantis->dvb_adapter,
143 "Mantis DVB adapter",
144 THIS_MODULE,
145 &mantis->pdev->dev,
146 adapter_nr);
147
148 if (result < 0) {
149
150 dprintk(MANTIS_ERROR, 1, "Error registering adapter");
151 return -ENODEV;
152 }
153
154 mantis->dvb_adapter.priv = mantis;
155 mantis->demux.dmx.capabilities = DMX_TS_FILTERING |
156 DMX_SECTION_FILTERING |
157 DMX_MEMORY_BASED_FILTERING;
158
159 mantis->demux.priv = mantis;
160 mantis->demux.filternum = 256;
161 mantis->demux.feednum = 256;
162 mantis->demux.start_feed = mantis_dvb_start_feed;
163 mantis->demux.stop_feed = mantis_dvb_stop_feed;
164 mantis->demux.write_to_decoder = NULL;
165
166 dprintk(MANTIS_DEBUG, 1, "dvb_dmx_init");
167 result = dvb_dmx_init(&mantis->demux);
168 if (result < 0) {
169 dprintk(MANTIS_ERROR, 1, "dvb_dmx_init failed, ERROR=%d", result);
170
171 goto err0;
172 }
173
174 mantis->dmxdev.filternum = 256;
175 mantis->dmxdev.demux = &mantis->demux.dmx;
176 mantis->dmxdev.capabilities = 0;
177 dprintk(MANTIS_DEBUG, 1, "dvb_dmxdev_init");
178
179 result = dvb_dmxdev_init(&mantis->dmxdev, &mantis->dvb_adapter);
180 if (result < 0) {
181
182 dprintk(MANTIS_ERROR, 1, "dvb_dmxdev_init failed, ERROR=%d", result);
183 goto err1;
184 }
185
186 mantis->fe_hw.source = DMX_FRONTEND_0;
187 result = mantis->demux.dmx.add_frontend(&mantis->demux.dmx, &mantis->fe_hw);
188 if (result < 0) {
189
190 dprintk(MANTIS_ERROR, 1, "dvb_dmx_init failed, ERROR=%d", result);
191 goto err2;
192 }
193
194 mantis->fe_mem.source = DMX_MEMORY_FE;
195 result = mantis->demux.dmx.add_frontend(&mantis->demux.dmx, &mantis->fe_mem);
196 if (result < 0) {
197 dprintk(MANTIS_ERROR, 1, "dvb_dmx_init failed, ERROR=%d", result);
198 goto err3;
199 }
200
201 result = mantis->demux.dmx.connect_frontend(&mantis->demux.dmx, &mantis->fe_hw);
202 if (result < 0) {
203 dprintk(MANTIS_ERROR, 1, "dvb_dmx_init failed, ERROR=%d", result);
204 goto err4;
205 }
206
207 dvb_net_init(&mantis->dvb_adapter, &mantis->dvbnet, &mantis->demux.dmx);
208 tasklet_setup(&mantis->tasklet, mantis_dma_xfer);
209 tasklet_disable(&mantis->tasklet);
210 if (mantis->hwconfig) {
211 result = config->frontend_init(mantis, mantis->fe);
212 if (result < 0) {
213 dprintk(MANTIS_ERROR, 1, "!!! NO Frontends found !!!");
214 goto err5;
215 } else {
216 if (mantis->fe == NULL) {
217 result = -ENOMEM;
218 dprintk(MANTIS_ERROR, 1, "FE <NULL>");
219 goto err5;
220 }
221 result = dvb_register_frontend(&mantis->dvb_adapter, mantis->fe);
222 if (result) {
223 dprintk(MANTIS_ERROR, 1, "ERROR: Frontend registration failed");
224
225 if (mantis->fe->ops.release)
226 mantis->fe->ops.release(mantis->fe);
227
228 mantis->fe = NULL;
229 goto err5;
230 }
231 }
232 }
233
234 return 0;
235
236 /* Error conditions .. */
237err5:
238 tasklet_kill(&mantis->tasklet);
239 dvb_net_release(&mantis->dvbnet);
240 if (mantis->fe) {
241 dvb_unregister_frontend(mantis->fe);
242 dvb_frontend_detach(mantis->fe);
243 }
244err4:
245 mantis->demux.dmx.remove_frontend(&mantis->demux.dmx, &mantis->fe_mem);
246
247err3:
248 mantis->demux.dmx.remove_frontend(&mantis->demux.dmx, &mantis->fe_hw);
249
250err2:
251 dvb_dmxdev_release(&mantis->dmxdev);
252
253err1:
254 dvb_dmx_release(&mantis->demux);
255
256err0:
257 dvb_unregister_adapter(&mantis->dvb_adapter);
258
259 return result;
260}
261EXPORT_SYMBOL_GPL(mantis_dvb_init);
262
263int mantis_dvb_exit(struct mantis_pci *mantis)
264{
265 int err;
266
267 if (mantis->fe) {
268 /* mantis_ca_exit(mantis); */
269 err = mantis_frontend_shutdown(mantis);
270 if (err != 0)
271 dprintk(MANTIS_ERROR, 1, "Frontend exit while POWER ON! <%d>", err);
272 dvb_unregister_frontend(mantis->fe);
273 dvb_frontend_detach(mantis->fe);
274 }
275
276 tasklet_kill(&mantis->tasklet);
277 dvb_net_release(&mantis->dvbnet);
278
279 mantis->demux.dmx.remove_frontend(&mantis->demux.dmx, &mantis->fe_mem);
280 mantis->demux.dmx.remove_frontend(&mantis->demux.dmx, &mantis->fe_hw);
281
282 dvb_dmxdev_release(&mantis->dmxdev);
283 dvb_dmx_release(&mantis->demux);
284
285 dprintk(MANTIS_DEBUG, 1, "dvb_unregister_adapter");
286 dvb_unregister_adapter(&mantis->dvb_adapter);
287
288 return 0;
289}
290EXPORT_SYMBOL_GPL(mantis_dvb_exit);