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