slurm.c revision 1.1.18.2
1 /* $NetBSD: slurm.c,v 1.1.18.2 2015/03/19 17:26:43 skrll Exp $ */ 2 3 /* 4 * Copyright (c) 2012 Jonathan A. Kollasch 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 20 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 21 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 23 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 25 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 26 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: slurm.c,v 1.1.18.2 2015/03/19 17:26:43 skrll Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/proc.h> 34 #include <sys/systm.h> 35 #include <sys/kernel.h> 36 #include <sys/device.h> 37 #include <sys/conf.h> 38 39 #include <dev/usb/usb.h> 40 #include <dev/usb/usbdi.h> 41 #include <dev/usb/usbdivar.h> 42 #include <dev/usb/usbdi_util.h> 43 #include <dev/usb/usbdevs.h> 44 #include <dev/ic/si470x_reg.h> 45 46 #include <sys/radioio.h> 47 #include <dev/radio_if.h> 48 49 #ifdef SLURM_DEBUG 50 int slurmdebug = 0; 51 #define DPRINTFN(n, x) do { if (slurmdebug > (n)) printf x; } while (0) 52 #else 53 #define DPRINTFN(n, x) 54 #endif 55 56 #define DPRINTF(x) DPRINTFN(0, x) 57 58 #define SI470X_VOLFACT (255 / __SHIFTOUT_MASK(SI470X_VOLUME)) 59 60 struct slurm_softc { 61 device_t sc_dev; 62 struct usbd_device * sc_udev; 63 struct usbd_interface * sc_uif; 64 uint32_t sc_band; 65 uint32_t sc_space; 66 }; 67 68 static const struct usb_devno slurm_devs[] = { 69 { USB_VENDOR_ADS, USB_PRODUCT_ADS_RDX155 }, 70 }; 71 72 static int slurm_match(device_t, cfdata_t, void *); 73 static void slurm_attach(device_t, device_t, void *); 74 static int slurm_detach(device_t, int); 75 76 static int slurm_get_info(void *, struct radio_info *); 77 static int slurm_set_info(void *, struct radio_info *); 78 static int slurm_search(void *, int); 79 80 static usbd_status slurm_setreg(struct slurm_softc *, int, uint16_t); 81 static usbd_status slurm_getreg(struct slurm_softc *, int, uint16_t *); 82 83 static uint32_t slurm_si470x_get_freq(struct slurm_softc *, uint16_t); 84 static void slurm_si470x_get_bandspace(struct slurm_softc *, uint16_t); 85 static int slurm_si470x_get_info(uint16_t); 86 static int slurm_si470x_get_mute(uint16_t); 87 static int slurm_si470x_get_stereo(uint16_t); 88 static int slurm_si470x_get_volume(uint16_t); 89 90 static int slurm_si470x_search(struct slurm_softc *, int); 91 92 static void slurm_si470x_set_freq(struct slurm_softc *, uint32_t); 93 static void slurm_si470x_set_powercfg(struct slurm_softc *, int, int); 94 static void slurm_si470x_set_volume(struct slurm_softc *, int); 95 96 static const struct radio_hw_if slurm_radio = { 97 .get_info = slurm_get_info, 98 .set_info = slurm_set_info, 99 .search = slurm_search, 100 }; 101 102 CFATTACH_DECL_NEW(slurm, sizeof(struct slurm_softc), 103 slurm_match, slurm_attach, slurm_detach, NULL); 104 105 static int 106 slurm_match(device_t parent, cfdata_t match, void *aux) 107 { 108 const struct usbif_attach_arg * const uaa = aux; 109 110 if (uaa->ifaceno != 2) 111 return UMATCH_NONE; 112 113 if (usb_lookup(slurm_devs, uaa->vendor, uaa->product) != NULL) { 114 return UMATCH_VENDOR_PRODUCT; 115 } 116 117 return UMATCH_NONE; 118 } 119 120 static void 121 slurm_attach(device_t parent, device_t self, void *aux) 122 { 123 struct slurm_softc * const sc = device_private(self); 124 const struct usbif_attach_arg * const uaa = aux; 125 126 sc->sc_dev = self; 127 sc->sc_udev = uaa->device; 128 sc->sc_uif = uaa->iface; 129 130 aprint_normal("\n"); 131 aprint_naive("\n"); 132 133 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); 134 135 #ifdef SLURM_DEBUG 136 { 137 uint16_t val; 138 for (int i = 0; i < 16; i++) { 139 slurm_getreg(sc, i, &val); 140 device_printf(self, "%02x -> %04x\n", i, val); 141 } 142 } 143 #endif 144 145 radio_attach_mi(&slurm_radio, sc, self); 146 } 147 148 static int 149 slurm_detach(device_t self, int flags) 150 { 151 struct slurm_softc * const sc = device_private(self); 152 int rv = 0; 153 154 if ((rv = config_detach_children(self, flags)) != 0) 155 return rv; 156 157 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 158 sc->sc_dev); 159 160 return (rv); 161 } 162 163 static int 164 slurm_get_info(void *v, struct radio_info *ri) 165 { 166 struct slurm_softc * const sc = v; 167 uint16_t powercfg, sysconfig2, readchannel, statusrssi; 168 169 slurm_getreg(sc, SI470X_POWERCFG, &powercfg); 170 slurm_getreg(sc, SI470X_SYSCONFIG2, &sysconfig2); 171 slurm_getreg(sc, SI470X_STATUSRSSI, &statusrssi); 172 slurm_getreg(sc, SI470X_READCHANNEL, &readchannel); 173 174 ri->mute = slurm_si470x_get_mute(powercfg); 175 ri->volume = slurm_si470x_get_volume(sysconfig2); 176 ri->stereo = slurm_si470x_get_stereo(powercfg); 177 ri->rfreq = 0; 178 ri->lock = 0; 179 slurm_si470x_get_bandspace(sc, sysconfig2); 180 ri->freq = slurm_si470x_get_freq(sc, readchannel); 181 ri->caps = RADIO_CAPS_DETECT_STEREO | RADIO_CAPS_DETECT_SIGNAL | 182 RADIO_CAPS_SET_MONO | RADIO_CAPS_HW_SEARCH | 183 RADIO_CAPS_HW_AFC | RADIO_CAPS_LOCK_SENSITIVITY; 184 ri->info = slurm_si470x_get_info(statusrssi); 185 186 return 0; 187 } 188 189 static int 190 slurm_set_info(void *v, struct radio_info *ri) 191 { 192 struct slurm_softc * const sc = v; 193 194 slurm_si470x_set_freq(sc, ri->freq); 195 slurm_si470x_set_powercfg(sc, ri->mute, ri->stereo); 196 slurm_si470x_set_volume(sc, ri->volume); 197 198 return 0; 199 } 200 201 static int 202 slurm_search(void *v, int f) 203 { 204 struct slurm_softc * const sc = v; 205 206 return slurm_si470x_search(sc, f); 207 } 208 209 static usbd_status 210 slurm_getreg(struct slurm_softc *sc, int reg, uint16_t *val) 211 { 212 usbd_status status; 213 uint8_t s[3]; 214 215 ++reg; 216 217 s[0] = reg; 218 s[1] = s[2] = 0; 219 220 status = usbd_get_report(sc->sc_uif, UHID_FEATURE_REPORT, 221 reg, &s, sizeof(s)); 222 223 *val = (s[1] << 8) | s[2]; 224 225 return status; 226 } 227 228 static usbd_status 229 slurm_setreg(struct slurm_softc *sc, int reg, uint16_t val) 230 { 231 usbd_status status; 232 uint8_t s[3]; 233 234 ++reg; 235 236 s[0] = reg; 237 s[1] = (val >> 8) & 0xff; 238 s[2] = (val >> 0) & 0xff; 239 240 status = usbd_set_report(sc->sc_uif, UHID_FEATURE_REPORT, 241 reg, &s, sizeof(s)); 242 243 return status; 244 } 245 246 static int 247 slurm_si470x_await_stc(struct slurm_softc *sc) 248 { 249 int i; 250 uint16_t statusrssi; 251 252 for (i = 50; i > 0; i--) { 253 usbd_delay_ms(sc->sc_udev, 2); 254 slurm_getreg(sc, SI470X_STATUSRSSI, &statusrssi); 255 if ((statusrssi & (SI470X_STC|SI470X_SF_BL)) != 0) 256 break; 257 } 258 259 if (i == 0) 260 return -1; 261 else 262 return 0; 263 } 264 265 static void 266 slurm_si470x_get_bandspace(struct slurm_softc *sc, uint16_t sysconfig2) 267 { 268 switch (__SHIFTOUT(sysconfig2, SI470X_SPACE)) { 269 default: 270 case 0: 271 sc->sc_space = 200; 272 break; 273 case 1: 274 sc->sc_space = 100; 275 break; 276 case 2: 277 sc->sc_space = 50; 278 break; 279 } 280 281 switch (__SHIFTOUT(sysconfig2, SI470X_BAND)) { 282 default: 283 case 0: 284 sc->sc_band = 87500; 285 break; 286 case 1: 287 case 2: 288 sc->sc_band = 76000; 289 break; 290 } 291 } 292 293 static uint32_t 294 slurm_si470x_get_freq(struct slurm_softc *sc, uint16_t readchannel) 295 { 296 readchannel = __SHIFTOUT(readchannel, SI470X_READCHAN); 297 return sc->sc_band + readchannel * sc->sc_space; 298 } 299 300 static int 301 slurm_si470x_get_info(uint16_t statusrssi) 302 { 303 return (__SHIFTOUT(statusrssi, SI470X_ST) ? RADIO_INFO_STEREO : 0) 304 | (__SHIFTOUT(statusrssi, SI470X_AFCRL) ? 0 : RADIO_INFO_SIGNAL); 305 } 306 307 static int 308 slurm_si470x_get_mute(uint16_t powercfg) 309 { 310 return __SHIFTOUT(powercfg, SI470X_DMUTE) ? 0 : 1; 311 } 312 313 static int 314 slurm_si470x_get_stereo(uint16_t powercfg) 315 { 316 return __SHIFTOUT(powercfg, SI470X_MONO) ? 0 : 1; 317 } 318 319 static int 320 slurm_si470x_get_volume(uint16_t sysconfig2) 321 { 322 return __SHIFTOUT(sysconfig2, SI470X_VOLUME) * SI470X_VOLFACT; 323 } 324 325 static int 326 slurm_si470x_search(struct slurm_softc *sc, int up) 327 { 328 uint16_t powercfg; 329 330 slurm_getreg(sc, SI470X_POWERCFG, &powercfg); 331 powercfg &= ~(SI470X_SKMODE|SI470X_SEEKUP|SI470X_SEEK); 332 powercfg |= up ? SI470X_SEEKUP : 0; 333 slurm_setreg(sc, SI470X_POWERCFG, SI470X_SEEK|powercfg); 334 slurm_si470x_await_stc(sc); 335 slurm_setreg(sc, SI470X_POWERCFG, powercfg); 336 337 return 0; 338 } 339 340 static void 341 slurm_si470x_set_freq(struct slurm_softc *sc, uint32_t freq) 342 { 343 uint16_t channel; 344 345 channel = (freq - sc->sc_band) / sc->sc_space; 346 347 slurm_setreg(sc, SI470X_CHANNEL, SI470X_TUNE|channel); 348 slurm_si470x_await_stc(sc); 349 slurm_setreg(sc, SI470X_CHANNEL, channel); 350 351 #ifdef SLURM_DEBUG 352 device_printf(sc->sc_dev, "%s 0a -> %04x after %d\n", __func__, val, i); 353 #endif 354 } 355 356 static void 357 slurm_si470x_set_powercfg(struct slurm_softc *sc, int mute, int stereo) 358 { 359 uint16_t powercfg; 360 361 slurm_getreg(sc, SI470X_POWERCFG, &powercfg); 362 powercfg &= ~(SI470X_DMUTE|SI470X_MONO); 363 powercfg |= SI470X_DSMUTE; 364 powercfg |= mute ? 0 : SI470X_DMUTE; 365 powercfg |= stereo ? 0 : SI470X_MONO; 366 slurm_setreg(sc, SI470X_POWERCFG, powercfg); 367 } 368 369 static void 370 slurm_si470x_set_volume(struct slurm_softc *sc, int volume) 371 { 372 uint16_t sysconfig2; 373 374 slurm_getreg(sc, SI470X_SYSCONFIG2, &sysconfig2); 375 sysconfig2 &= ~SI470X_VOLUME; 376 sysconfig2 |= __SHIFTIN(volume / SI470X_VOLFACT, SI470X_VOLUME); 377 slurm_setreg(sc, SI470X_SYSCONFIG2, sysconfig2); 378 } 379
Indexes created Tue Sep 30 20:09:53 GMT 2025