gtp.c revision 1.1.2.2
1 /* $NetBSD: gtp.c,v 1.1.2.2 2002/09/06 08:45:13 jdolecek Exp $ */ 2 /* $OpenBSD: gtp.c,v 1.1 2002/06/03 16:13:21 mickey Exp $ */ 3 4 /* 5 * Copyright (c) 2002 Vladimir Popov <jumbo (at) narod.ru> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /* Gemtek PCI Radio Card Device Driver */ 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/device.h> 34 #include <sys/errno.h> 35 #include <sys/ioctl.h> 36 #include <sys/proc.h> 37 #include <sys/radioio.h> 38 39 #include <machine/bus.h> 40 41 #include <dev/pci/pcireg.h> 42 #include <dev/pci/pcivar.h> 43 #include <dev/pci/pcidevs.h> 44 45 #include <dev/ic/tea5757.h> 46 #include <dev/radio_if.h> 47 48 #define PCI_CBIO 0x10 49 50 int gtp_match(struct device *, struct cfdata *, void *); 51 void gtp_attach(struct device *, struct device *, void *); 52 53 int gtp_get_info(void *, struct radio_info *); 54 int gtp_set_info(void *, struct radio_info *); 55 int gtp_search(void *, int); 56 57 #define GEMTEK_PCI_CAPS RADIO_CAPS_DETECT_SIGNAL | \ 58 RADIO_CAPS_DETECT_STEREO | \ 59 RADIO_CAPS_SET_MONO | \ 60 RADIO_CAPS_HW_SEARCH | \ 61 RADIO_CAPS_HW_AFC | \ 62 RADIO_CAPS_LOCK_SENSITIVITY 63 64 #define GEMTEK_PCI_MUTE 0x00 65 #define GEMTEK_PCI_RSET 0x10 66 67 #define GEMTEK_PCI_SIGNAL 0x08 68 #define GEMTEK_PCI_STEREO 0x08 69 70 #define GTP_WREN_ON (1 << 2) 71 #define GTP_WREN_OFF (0 << 2) 72 73 #define GTP_DATA_ON (1 << 1) 74 #define GTP_DATA_OFF (0 << 1) 75 76 #define GTP_CLCK_ON (1 << 0) 77 #define GTP_CLCK_OFF (0 << 0) 78 79 #define GTP_READ_CLOCK_LOW (GTP_WREN_OFF | GTP_DATA_ON | GTP_CLCK_OFF) 80 #define GTP_READ_CLOCK_HIGH (GTP_WREN_OFF | GTP_DATA_ON | GTP_CLCK_ON) 81 82 /* define our interface to the high-level radio driver */ 83 84 struct radio_hw_if gtp_hw_if = { 85 NULL, /* open */ 86 NULL, /* close */ 87 gtp_get_info, 88 gtp_set_info, 89 gtp_search 90 }; 91 92 struct gtp_softc { 93 struct device sc_dev; 94 95 int mute; 96 u_int8_t vol; 97 u_int32_t freq; 98 u_int32_t stereo; 99 u_int32_t lock; 100 101 struct tea5757_t tea; 102 }; 103 104 struct cfattach gtp_ca = { 105 sizeof(struct gtp_softc), gtp_match, gtp_attach 106 }; 107 108 void gtp_set_mute(struct gtp_softc *); 109 void gtp_write_bit(bus_space_tag_t, bus_space_handle_t, bus_size_t, int); 110 void gtp_init(bus_space_tag_t, bus_space_handle_t, bus_size_t, u_int32_t); 111 void gtp_rset(bus_space_tag_t, bus_space_handle_t, bus_size_t, u_int32_t); 112 int gtp_state(bus_space_tag_t, bus_space_handle_t); 113 u_int32_t gtp_hardware_read(bus_space_tag_t, bus_space_handle_t, 114 bus_size_t); 115 116 int 117 gtp_match(struct device *parent, struct cfdata *cf, void *aux) 118 { 119 struct pci_attach_args *pa = aux; 120 /* FIXME: 121 * Guillemot produces the card that 122 * was originally developed by Gemtek 123 */ 124 #if 0 125 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_GEMTEK && 126 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_GEMTEK_PR103) 127 return (1); 128 #else 129 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_GUILLEMOT && 130 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_GUILLEMOT_MAXIRADIO) 131 return (1); 132 #endif 133 return (0); 134 } 135 136 void 137 gtp_attach(struct device *parent, struct device *self, void *aux) 138 { 139 struct gtp_softc *sc = (struct gtp_softc *) self; 140 struct pci_attach_args *pa = aux; 141 struct cfdata *cf = sc->sc_dev.dv_cfdata; 142 pci_chipset_tag_t pc = pa->pa_pc; 143 bus_size_t iosize; 144 pcireg_t csr; 145 char devinfo[256]; 146 147 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 148 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 149 150 /* Map I/O registers */ 151 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, &sc->tea.iot, 152 &sc->tea.ioh, NULL, &iosize)) { 153 printf(": can't map i/o space\n"); 154 return; 155 } 156 157 /* Enable the card */ 158 csr = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 159 pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 160 csr | PCI_COMMAND_MASTER_ENABLE); 161 162 sc->vol = 0; 163 sc->mute = 0; 164 sc->freq = MIN_FM_FREQ; 165 sc->stereo = TEA5757_STEREO; 166 sc->lock = TEA5757_S030; 167 sc->tea.offset = 0; 168 sc->tea.flags = cf->cf_flags; 169 sc->tea.init = gtp_init; 170 sc->tea.rset = gtp_rset; 171 sc->tea.write_bit = gtp_write_bit; 172 sc->tea.read = gtp_hardware_read; 173 174 printf(": Gemtek PR103\n"); 175 176 radio_attach_mi(>p_hw_if, sc, &sc->sc_dev); 177 } 178 179 int 180 gtp_get_info(void *v, struct radio_info *ri) 181 { 182 struct gtp_softc *sc = v; 183 184 ri->mute = sc->mute; 185 ri->volume = sc->vol ? 255 : 0; 186 ri->stereo = sc->stereo == TEA5757_STEREO ? 1 : 0; 187 ri->caps = GEMTEK_PCI_CAPS; 188 ri->rfreq = 0; 189 ri->lock = tea5757_decode_lock(sc->lock); 190 191 /* Frequency read unsupported */ 192 ri->freq = sc->freq; 193 194 ri->info = gtp_state(sc->tea.iot, sc->tea.ioh); 195 gtp_set_mute(sc); 196 197 return (0); 198 } 199 200 int 201 gtp_set_info(void *v, struct radio_info *ri) 202 { 203 struct gtp_softc *sc = v; 204 205 sc->mute = ri->mute ? 1 : 0; 206 sc->vol = ri->volume ? 255 : 0; 207 sc->stereo = ri->stereo ? TEA5757_STEREO: TEA5757_MONO; 208 sc->lock = tea5757_encode_lock(ri->lock); 209 ri->freq = sc->freq = tea5757_set_freq(&sc->tea, 210 sc->lock, sc->stereo, ri->freq); 211 gtp_set_mute(sc); 212 213 return (0); 214 } 215 216 int 217 gtp_search(void *v, int f) 218 { 219 struct gtp_softc *sc = v; 220 221 tea5757_search(&sc->tea, sc->lock, sc->stereo, f); 222 gtp_set_mute(sc); 223 224 return (0); 225 } 226 227 void 228 gtp_set_mute(struct gtp_softc *sc) 229 { 230 if (sc->mute || !sc->vol) 231 bus_space_write_2(sc->tea.iot, sc->tea.ioh, 0, GEMTEK_PCI_MUTE); 232 else 233 sc->freq = tea5757_set_freq(&sc->tea, 234 sc->lock, sc->stereo, sc->freq); 235 } 236 237 void 238 gtp_write_bit(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off, 239 int bit) 240 { 241 u_int8_t data; 242 243 data = bit ? GTP_DATA_ON : GTP_DATA_OFF; 244 bus_space_write_1(iot, ioh, off, GTP_WREN_ON | GTP_CLCK_OFF | data); 245 bus_space_write_1(iot, ioh, off, GTP_WREN_ON | GTP_CLCK_ON | data); 246 bus_space_write_1(iot, ioh, off, GTP_WREN_ON | GTP_CLCK_OFF | data); 247 } 248 249 void 250 gtp_init(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off, u_int32_t d) 251 { 252 bus_space_write_1(iot, ioh, off, GTP_WREN_ON | GTP_DATA_ON | GTP_CLCK_OFF); 253 } 254 255 void 256 gtp_rset(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off, u_int32_t d) 257 { 258 bus_space_write_1(iot, ioh, off, GEMTEK_PCI_RSET); 259 } 260 261 u_int32_t 262 gtp_hardware_read(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off) 263 { 264 /* UNSUPPORTED */ 265 return 0; 266 } 267 268 int 269 gtp_state(bus_space_tag_t iot, bus_space_handle_t ioh) 270 { 271 int ret; 272 273 bus_space_write_2(iot, ioh, 0, 274 GTP_DATA_ON | GTP_WREN_OFF | GTP_CLCK_OFF); 275 ret = bus_space_read_2(iot, ioh, 0) & 276 GEMTEK_PCI_STEREO? 0 : RADIO_INFO_STEREO; 277 bus_space_write_2(iot, ioh, 0, 278 GTP_DATA_ON | GTP_WREN_OFF | GTP_CLCK_ON); 279 ret |= bus_space_read_2(iot, ioh, 0) & 280 GEMTEK_PCI_SIGNAL? 0 : RADIO_INFO_SIGNAL; 281 282 return ret; 283 } 284
Indexes created Sun Oct 19 02:09:48 GMT 2025