1 // SPDX-License-Identifier: GPL-2.0-or-later
3 Mantis PCI bridge driver
4 Copyright (C) Manu Abraham (abraham.manu@gmail.com)
8 #include <linux/kernel.h>
9 #include <linux/bitops.h>
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>
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>
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"
29 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
31 int mantis_frontend_power(struct mantis_pci *mantis, enum mantis_power power)
33 struct mantis_hwconfig *config = mantis->hwconfig;
37 dprintk(MANTIS_DEBUG, 1, "Power ON");
38 mantis_gpio_set_bits(mantis, config->power, POWER_ON);
40 mantis_gpio_set_bits(mantis, config->power, POWER_ON);
45 dprintk(MANTIS_DEBUG, 1, "Power OFF");
46 mantis_gpio_set_bits(mantis, config->power, POWER_OFF);
51 dprintk(MANTIS_DEBUG, 1, "Unknown state <%02x>", power);
57 EXPORT_SYMBOL_GPL(mantis_frontend_power);
59 void mantis_frontend_soft_reset(struct mantis_pci *mantis)
61 struct mantis_hwconfig *config = mantis->hwconfig;
63 dprintk(MANTIS_DEBUG, 1, "Frontend RESET");
64 mantis_gpio_set_bits(mantis, config->reset, 0);
66 mantis_gpio_set_bits(mantis, config->reset, 0);
68 mantis_gpio_set_bits(mantis, config->reset, 1);
70 mantis_gpio_set_bits(mantis, config->reset, 1);
75 EXPORT_SYMBOL_GPL(mantis_frontend_soft_reset);
77 static int mantis_frontend_shutdown(struct mantis_pci *mantis)
81 mantis_frontend_soft_reset(mantis);
82 err = mantis_frontend_power(mantis, POWER_OFF);
84 dprintk(MANTIS_ERROR, 1, "Frontend POWER OFF failed! <%d>", err);
91 static int mantis_dvb_start_feed(struct dvb_demux_feed *dvbdmxfeed)
93 struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
94 struct mantis_pci *mantis = dvbdmx->priv;
96 dprintk(MANTIS_DEBUG, 1, "Mantis DVB Start feed");
97 if (!dvbdmx->dmx.frontend) {
98 dprintk(MANTIS_DEBUG, 1, "no frontend ?");
103 dprintk(MANTIS_DEBUG, 1, "mantis start feed, feeds=%d", mantis->feeds);
105 if (mantis->feeds == 1) {
106 dprintk(MANTIS_DEBUG, 1, "mantis start feed & dma");
107 mantis_dma_start(mantis);
108 tasklet_enable(&mantis->tasklet);
111 return mantis->feeds;
114 static int mantis_dvb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
116 struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
117 struct mantis_pci *mantis = dvbdmx->priv;
119 dprintk(MANTIS_DEBUG, 1, "Mantis DVB Stop feed");
120 if (!dvbdmx->dmx.frontend) {
121 dprintk(MANTIS_DEBUG, 1, "no frontend ?");
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);
135 int mantis_dvb_init(struct mantis_pci *mantis)
137 struct mantis_hwconfig *config = mantis->hwconfig;
140 dprintk(MANTIS_DEBUG, 1, "dvb_register_adapter");
142 result = dvb_register_adapter(&mantis->dvb_adapter,
143 "Mantis DVB adapter",
150 dprintk(MANTIS_ERROR, 1, "Error registering adapter");
154 mantis->dvb_adapter.priv = mantis;
155 mantis->demux.dmx.capabilities = DMX_TS_FILTERING |
156 DMX_SECTION_FILTERING |
157 DMX_MEMORY_BASED_FILTERING;
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;
166 dprintk(MANTIS_DEBUG, 1, "dvb_dmx_init");
167 result = dvb_dmx_init(&mantis->demux);
169 dprintk(MANTIS_ERROR, 1, "dvb_dmx_init failed, ERROR=%d", result);
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");
179 result = dvb_dmxdev_init(&mantis->dmxdev, &mantis->dvb_adapter);
182 dprintk(MANTIS_ERROR, 1, "dvb_dmxdev_init failed, ERROR=%d", result);
186 mantis->fe_hw.source = DMX_FRONTEND_0;
187 result = mantis->demux.dmx.add_frontend(&mantis->demux.dmx, &mantis->fe_hw);
190 dprintk(MANTIS_ERROR, 1, "dvb_dmx_init failed, ERROR=%d", result);
194 mantis->fe_mem.source = DMX_MEMORY_FE;
195 result = mantis->demux.dmx.add_frontend(&mantis->demux.dmx, &mantis->fe_mem);
197 dprintk(MANTIS_ERROR, 1, "dvb_dmx_init failed, ERROR=%d", result);
201 result = mantis->demux.dmx.connect_frontend(&mantis->demux.dmx, &mantis->fe_hw);
203 dprintk(MANTIS_ERROR, 1, "dvb_dmx_init failed, ERROR=%d", result);
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);
213 dprintk(MANTIS_ERROR, 1, "!!! NO Frontends found !!!");
216 if (mantis->fe == NULL) {
218 dprintk(MANTIS_ERROR, 1, "FE <NULL>");
221 result = dvb_register_frontend(&mantis->dvb_adapter, mantis->fe);
223 dprintk(MANTIS_ERROR, 1, "ERROR: Frontend registration failed");
225 if (mantis->fe->ops.release)
226 mantis->fe->ops.release(mantis->fe);
236 /* Error conditions .. */
238 tasklet_kill(&mantis->tasklet);
239 dvb_net_release(&mantis->dvbnet);
241 dvb_unregister_frontend(mantis->fe);
242 dvb_frontend_detach(mantis->fe);
245 mantis->demux.dmx.remove_frontend(&mantis->demux.dmx, &mantis->fe_mem);
248 mantis->demux.dmx.remove_frontend(&mantis->demux.dmx, &mantis->fe_hw);
251 dvb_dmxdev_release(&mantis->dmxdev);
254 dvb_dmx_release(&mantis->demux);
257 dvb_unregister_adapter(&mantis->dvb_adapter);
261 EXPORT_SYMBOL_GPL(mantis_dvb_init);
263 int mantis_dvb_exit(struct mantis_pci *mantis)
268 /* mantis_ca_exit(mantis); */
269 err = mantis_frontend_shutdown(mantis);
271 dprintk(MANTIS_ERROR, 1, "Frontend exit while POWER ON! <%d>", err);
272 dvb_unregister_frontend(mantis->fe);
273 dvb_frontend_detach(mantis->fe);
276 tasklet_kill(&mantis->tasklet);
277 dvb_net_release(&mantis->dvbnet);
279 mantis->demux.dmx.remove_frontend(&mantis->demux.dmx, &mantis->fe_mem);
280 mantis->demux.dmx.remove_frontend(&mantis->demux.dmx, &mantis->fe_hw);
282 dvb_dmxdev_release(&mantis->dmxdev);
283 dvb_dmx_release(&mantis->demux);
285 dprintk(MANTIS_DEBUG, 1, "dvb_unregister_adapter");
286 dvb_unregister_adapter(&mantis->dvb_adapter);
290 EXPORT_SYMBOL_GPL(mantis_dvb_exit);