sf16fmr2.c revision 1.7
1 /* $NetBSD: sf16fmr2.c,v 1.7 2002/10/02 02:09:20 thorpej Exp $ */ 2 /* $OpenBSD: sf16fmr2.c,v 1.3 2001/12/18 18:48:08 mickey Exp $ */ 3 /* $RuOBSD: sf16fmr2.c,v 1.12 2001/10/18 16:51:36 pva Exp $ */ 4 5 /* 6 * Copyright (c) 2001 Maxim Tsyplakov <tm (at) oganer.net>, 7 * Vladimir Popov <jumbo (at) narod.ru> 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 /* SoundForte RadioLink SF16-FMR2 FM Radio Card device driver */ 32 33 /* 34 * Philips TEA5757H AM/FM Self Tuned Radio: 35 * http://www.semiconductors.philips.com/pip/TEA5757H 36 */ 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/proc.h> 41 #include <sys/errno.h> 42 #include <sys/ioctl.h> 43 #include <sys/device.h> 44 #include <sys/radioio.h> 45 46 #include <dev/isa/isavar.h> 47 #include <dev/radio_if.h> 48 #include <dev/ic/tea5757.h> 49 50 #define SF16FMR2_BASE_VALID(x) (x == 0x384) 51 #define SF16FMR2_CAPABILITIES RADIO_CAPS_DETECT_STEREO | \ 52 RADIO_CAPS_DETECT_SIGNAL | \ 53 RADIO_CAPS_SET_MONO | \ 54 RADIO_CAPS_LOCK_SENSITIVITY | \ 55 RADIO_CAPS_HW_AFC | \ 56 RADIO_CAPS_HW_SEARCH 57 58 #define SF16FMR2_AMPLIFIER (1 << 7) 59 #define SF16FMR2_SIGNAL (1 << 3) 60 #define SF16FMR2_STEREO (1 << 3) 61 62 #define SF16FMR2_MUTE 0x00 63 #define SF16FMR2_UNMUTE 0x04 64 65 #define SF16FMR2_DATA_ON (1 << 0) 66 #define SF16FMR2_DATA_OFF (0 << 0) 67 68 #define SF16FMR2_CLCK_ON (1 << 1) 69 #define SF16FMR2_CLCK_OFF (0 << 1) 70 71 #define SF16FMR2_WREN_ON (0 << 2) /* SF16-FMR2 has inverse WREN */ 72 #define SF16FMR2_WREN_OFF (1 << 2) 73 74 #define SF16FMR2_READ_CLOCK_LOW \ 75 SF16FMR2_DATA_ON | SF16FMR2_CLCK_OFF | SF16FMR2_WREN_OFF 76 77 #define SF16FMR2_READ_CLOCK_HIGH \ 78 SF16FMR2_DATA_ON | SF16FMR2_CLCK_ON | SF16FMR2_WREN_OFF 79 80 int sf2r_probe(struct device *, struct cfdata *, void *); 81 void sf2r_attach(struct device *, struct device * self, void *); 82 83 int sf2r_get_info(void *, struct radio_info *); 84 int sf2r_set_info(void *, struct radio_info *); 85 int sf2r_search(void *, int); 86 87 /* define our interface to the higher level radio driver */ 88 struct radio_hw_if sf2r_hw_if = { 89 NULL, /* open */ 90 NULL, /* close */ 91 sf2r_get_info, 92 sf2r_set_info, 93 sf2r_search 94 }; 95 96 struct sf2r_softc { 97 struct device sc_dev; 98 99 u_int32_t freq; 100 u_int32_t stereo; 101 u_int32_t lock; 102 u_int8_t vol; 103 int mute; 104 105 struct tea5757_t tea; 106 }; 107 108 CFATTACH_DECL(sf2r, sizeof(struct sf2r_softc), 109 sf2r_probe, sf2r_attach, NULL, NULL); 110 111 void sf2r_set_mute(struct sf2r_softc *); 112 int sf2r_find(bus_space_tag_t, bus_space_handle_t); 113 114 u_int32_t sf2r_read_register(bus_space_tag_t, bus_space_handle_t, bus_size_t); 115 116 void sf2r_init(bus_space_tag_t, bus_space_handle_t, bus_size_t, u_int32_t); 117 void sf2r_rset(bus_space_tag_t, bus_space_handle_t, bus_size_t, u_int32_t); 118 void sf2r_write_bit(bus_space_tag_t, bus_space_handle_t, bus_size_t, int); 119 120 int 121 sf2r_probe(struct device *parent, struct cfdata *cf, void *aux) 122 { 123 struct isa_attach_args *ia = aux; 124 bus_space_tag_t iot = ia->ia_iot; 125 bus_space_handle_t ioh; 126 u_int r; 127 int iosize = 1, iobase; 128 129 if (ISA_DIRECT_CONFIG(ia)) 130 return 0; 131 132 if (ia->ia_nio < 1) 133 return 0; 134 135 iobase = ia->ia_io[0].ir_addr; 136 137 if (!SF16FMR2_BASE_VALID(iobase)) { 138 printf("sf2r: configured iobase 0x%x invalid\n", iobase); 139 return 0; 140 } 141 142 if (bus_space_map(iot, iobase, iosize, 0, &ioh)) 143 return 0; 144 145 r = sf2r_find(iot, ioh); 146 147 bus_space_unmap(iot, ioh, iosize); 148 149 if (r != 0) { 150 ia->ia_nio = 1; 151 ia->ia_io[0].ir_size = iosize; 152 153 ia->ia_niomem = 0; 154 ia->ia_nirq = 0; 155 ia->ia_ndrq = 0; 156 157 return (1); 158 } 159 160 return (0); 161 } 162 163 void 164 sf2r_attach(struct device *parent, struct device *self, void *aux) 165 { 166 struct sf2r_softc *sc = (void *) self; 167 struct isa_attach_args *ia = aux; 168 169 sc->tea.iot = ia->ia_iot; 170 sc->tea.flags = 0; 171 sc->mute = 0; 172 sc->vol = 0; 173 sc->freq = MIN_FM_FREQ; 174 sc->stereo = TEA5757_STEREO; 175 sc->lock = TEA5757_S030; 176 177 /* remap I/O */ 178 if (bus_space_map(sc->tea.iot, ia->ia_io[0].ir_addr, 179 ia->ia_io[0].ir_size, 0, &sc->tea.ioh)) 180 panic("sf2rattach: bus_space_map() failed"); 181 182 sc->tea.offset = 0; 183 184 sc->tea.init = sf2r_init; 185 sc->tea.rset = sf2r_rset; 186 sc->tea.write_bit = sf2r_write_bit; 187 sc->tea.read = sf2r_read_register; 188 189 printf(": SoundForte RadioLink SF16-FMR2\n"); 190 tea5757_set_freq(&sc->tea, sc->stereo, sc->lock, sc->freq); 191 sf2r_set_mute(sc); 192 193 radio_attach_mi(&sf2r_hw_if, sc, &sc->sc_dev); 194 } 195 196 /* 197 * Mute/unmute the card 198 */ 199 void 200 sf2r_set_mute(struct sf2r_softc *sc) 201 { 202 u_int8_t mute; 203 204 mute = (sc->mute || !sc->vol) ? SF16FMR2_MUTE : SF16FMR2_UNMUTE; 205 bus_space_write_1(sc->tea.iot, sc->tea.ioh, 0, mute); 206 DELAY(64); 207 bus_space_write_1(sc->tea.iot, sc->tea.ioh, 0, mute); 208 } 209 210 void 211 sf2r_init(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off, u_int32_t d) 212 { 213 bus_space_write_1(iot, ioh, off, SF16FMR2_MUTE); 214 } 215 216 void 217 sf2r_rset(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off, u_int32_t d) 218 { 219 bus_space_write_1(iot, ioh, off, SF16FMR2_MUTE); 220 bus_space_write_1(iot, ioh, off, SF16FMR2_UNMUTE); 221 } 222 223 int 224 sf2r_find(bus_space_tag_t iot, bus_space_handle_t ioh) 225 { 226 struct sf2r_softc sc; 227 u_int32_t freq; 228 229 sc.tea.iot = iot; 230 sc.tea.ioh = ioh; 231 sc.tea.offset = 0; 232 sc.tea.init = sf2r_init; 233 sc.tea.rset = sf2r_rset; 234 sc.tea.write_bit = sf2r_write_bit; 235 sc.tea.read = sf2r_read_register; 236 sc.lock = TEA5757_S030; 237 sc.stereo = TEA5757_STEREO; 238 239 if ((bus_space_read_1(iot, ioh, 0) & 0x70) == 0x30) { 240 /* 241 * Let's try to write and read a frequency. 242 * If the written and read frequencies are 243 * the same then success. 244 */ 245 sc.freq = MIN_FM_FREQ; 246 tea5757_set_freq(&sc.tea, sc.stereo, sc.lock, sc.freq); 247 sf2r_set_mute(&sc); 248 freq = sf2r_read_register(iot, ioh, sc.tea.offset); 249 if (tea5757_decode_freq(freq) == sc.freq) 250 return 1; 251 } 252 253 return 0; 254 } 255 256 void 257 sf2r_write_bit(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off, int bit) 258 { 259 u_int8_t data; 260 261 data = bit ? SF16FMR2_DATA_ON : SF16FMR2_DATA_OFF; 262 263 bus_space_write_1(iot, ioh, off, 264 SF16FMR2_WREN_ON | SF16FMR2_CLCK_OFF | data); 265 bus_space_write_1(iot, ioh, off, 266 SF16FMR2_WREN_ON | SF16FMR2_CLCK_ON | data); 267 bus_space_write_1(iot, ioh, off, 268 SF16FMR2_WREN_ON | SF16FMR2_CLCK_OFF | data); 269 } 270 271 u_int32_t 272 sf2r_read_register(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off) 273 { 274 u_int32_t res = 0; 275 u_int8_t i, state = 0; 276 277 bus_space_write_1(iot, ioh, off, SF16FMR2_READ_CLOCK_LOW); 278 DELAY(6); 279 bus_space_write_1(iot, ioh, off, SF16FMR2_READ_CLOCK_HIGH); 280 281 i = bus_space_read_1(iot, ioh, off); 282 DELAY(6); 283 /* Amplifier: 0 - not present, 1 - present */ 284 state = i & SF16FMR2_AMPLIFIER ? (1 << 2) : (0 << 2); 285 /* Signal: 0 - not tuned, 1 - tuned */ 286 state |= i & SF16FMR2_SIGNAL ? (0 << 1) : (1 << 1); 287 288 bus_space_write_1(iot, ioh, off, SF16FMR2_READ_CLOCK_LOW); 289 i = bus_space_read_1(iot, ioh, off); 290 /* Stereo: 0 - mono, 1 - stereo */ 291 state |= i & SF16FMR2_STEREO ? (0 << 0) : (1 << 0); 292 res = i & SF16FMR2_DATA_ON; 293 294 i = 23; 295 while ( i-- ) { 296 DELAY(6); 297 res <<= 1; 298 bus_space_write_1(iot, ioh, off, SF16FMR2_READ_CLOCK_HIGH); 299 DELAY(6); 300 bus_space_write_1(iot, ioh, off, SF16FMR2_READ_CLOCK_LOW); 301 res |= bus_space_read_1(iot, ioh, off) & SF16FMR2_DATA_ON; 302 } 303 304 return res | (state << 24); 305 } 306 307 int 308 sf2r_get_info(void *v, struct radio_info *ri) 309 { 310 struct sf2r_softc *sc = v; 311 u_int32_t buf; 312 313 ri->mute = sc->mute; 314 ri->volume = sc->vol ? 255 : 0; 315 ri->stereo = sc->stereo == TEA5757_STEREO ? 1 : 0; 316 ri->caps = SF16FMR2_CAPABILITIES; 317 ri->rfreq = 0; 318 ri->lock = tea5757_decode_lock(sc->lock); 319 320 buf = sf2r_read_register(sc->tea.iot, sc->tea.ioh, sc->tea.offset); 321 ri->freq = sc->freq = tea5757_decode_freq(buf); 322 ri->info = 3 & (buf >> 24); 323 324 return (0); 325 } 326 327 int 328 sf2r_set_info(void *v, struct radio_info *ri) 329 { 330 struct sf2r_softc *sc = v; 331 332 sc->mute = ri->mute ? 1 : 0; 333 sc->vol = ri->volume ? 255 : 0; 334 sc->stereo = ri->stereo ? TEA5757_STEREO: TEA5757_MONO; 335 sc->lock = tea5757_encode_lock(ri->lock); 336 ri->freq = sc->freq = tea5757_set_freq(&sc->tea, 337 sc->lock, sc->stereo, ri->freq); 338 sf2r_set_mute(sc); 339 340 return (0); 341 } 342 343 int 344 sf2r_search(void *v, int f) 345 { 346 struct sf2r_softc *sc = v; 347 348 tea5757_search(&sc->tea, sc->lock, sc->stereo, f); 349 sf2r_set_mute(sc); 350 351 return (0); 352 } 353
Indexes created Thu Sep 25 06:09:39 GMT 2025