1 /* $NetBSD: gtp.c,v 1.4 2002/10/02 16:51:16 thorpej 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@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 CFATTACH_DECL(gtp, sizeof(struct gtp_softc), 105 gtp_match, gtp_attach, NULL, NULL); 106 107 void gtp_set_mute(struct gtp_softc *); 108 void gtp_write_bit(bus_space_tag_t, bus_space_handle_t, bus_size_t, int); 109 void gtp_init(bus_space_tag_t, bus_space_handle_t, bus_size_t, u_int32_t); 110 void gtp_rset(bus_space_tag_t, bus_space_handle_t, bus_size_t, u_int32_t); 111 int gtp_state(bus_space_tag_t, bus_space_handle_t); 112 u_int32_t gtp_hardware_read(bus_space_tag_t, bus_space_handle_t, 113 bus_size_t); 114 115 int 116 gtp_match(struct device *parent, struct cfdata *cf, void *aux) 117 { 118 struct pci_attach_args *pa = aux; 119 /* FIXME: 120 * Guillemot produces the card that 121 * was originally developed by Gemtek 122 */ 123 #if 0 124 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_GEMTEK && 125 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_GEMTEK_PR103) 126 return (1); 127 #else 128 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_GUILLEMOT && 129 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_GUILLEMOT_MAXIRADIO) 130 return (1); 131 #endif 132 return (0); 133 } 134 135 void 136 gtp_attach(struct device *parent, struct device *self, void *aux) 137 { 138 struct gtp_softc *sc = (struct gtp_softc *) self; 139 struct pci_attach_args *pa = aux; 140 struct cfdata *cf = sc->sc_dev.dv_cfdata; 141 pci_chipset_tag_t pc = pa->pa_pc; 142 bus_size_t iosize; 143 pcireg_t csr; 144 char devinfo[256]; 145 146 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 147 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 148 149 /* Map I/O registers */ 150 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, &sc->tea.iot, 151 &sc->tea.ioh, NULL, &iosize)) { 152 printf(": can't map i/o space\n"); 153 return; 154 } 155 156 /* Enable the card */ 157 csr = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 158 pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 159 csr | PCI_COMMAND_MASTER_ENABLE); 160 161 sc->vol = 0; 162 sc->mute = 0; 163 sc->freq = MIN_FM_FREQ; 164 sc->stereo = TEA5757_STEREO; 165 sc->lock = TEA5757_S030; 166 sc->tea.offset = 0; 167 sc->tea.flags = cf->cf_flags; 168 sc->tea.init = gtp_init; 169 sc->tea.rset = gtp_rset; 170 sc->tea.write_bit = gtp_write_bit; 171 sc->tea.read = gtp_hardware_read; 172 173 printf(": Gemtek PR103\n"); 174 175 radio_attach_mi(>p_hw_if, sc, &sc->sc_dev); 176 } 177 178 int 179 gtp_get_info(void *v, struct radio_info *ri) 180 { 181 struct gtp_softc *sc = v; 182 183 ri->mute = sc->mute; 184 ri->volume = sc->vol ? 255 : 0; 185 ri->stereo = sc->stereo == TEA5757_STEREO ? 1 : 0; 186 ri->caps = GEMTEK_PCI_CAPS; 187 ri->rfreq = 0; 188 ri->lock = tea5757_decode_lock(sc->lock); 189 190 /* Frequency read unsupported */ 191 ri->freq = sc->freq; 192 193 ri->info = gtp_state(sc->tea.iot, sc->tea.ioh); 194 gtp_set_mute(sc); 195 196 return (0); 197 } 198 199 int 200 gtp_set_info(void *v, struct radio_info *ri) 201 { 202 struct gtp_softc *sc = v; 203 204 sc->mute = ri->mute ? 1 : 0; 205 sc->vol = ri->volume ? 255 : 0; 206 sc->stereo = ri->stereo ? TEA5757_STEREO: TEA5757_MONO; 207 sc->lock = tea5757_encode_lock(ri->lock); 208 ri->freq = sc->freq = tea5757_set_freq(&sc->tea, 209 sc->lock, sc->stereo, ri->freq); 210 gtp_set_mute(sc); 211 212 return (0); 213 } 214 215 int 216 gtp_search(void *v, int f) 217 { 218 struct gtp_softc *sc = v; 219 220 tea5757_search(&sc->tea, sc->lock, sc->stereo, f); 221 gtp_set_mute(sc); 222 223 return (0); 224 } 225 226 void 227 gtp_set_mute(struct gtp_softc *sc) 228 { 229 if (sc->mute || !sc->vol) 230 bus_space_write_2(sc->tea.iot, sc->tea.ioh, 0, GEMTEK_PCI_MUTE); 231 else 232 sc->freq = tea5757_set_freq(&sc->tea, 233 sc->lock, sc->stereo, sc->freq); 234 } 235 236 void 237 gtp_write_bit(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off, 238 int bit) 239 { 240 u_int8_t data; 241 242 data = bit ? GTP_DATA_ON : GTP_DATA_OFF; 243 bus_space_write_1(iot, ioh, off, GTP_WREN_ON | GTP_CLCK_OFF | data); 244 bus_space_write_1(iot, ioh, off, GTP_WREN_ON | GTP_CLCK_ON | data); 245 bus_space_write_1(iot, ioh, off, GTP_WREN_ON | GTP_CLCK_OFF | data); 246 } 247 248 void 249 gtp_init(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off, u_int32_t d) 250 { 251 bus_space_write_1(iot, ioh, off, GTP_WREN_ON | GTP_DATA_ON | GTP_CLCK_OFF); 252 } 253 254 void 255 gtp_rset(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off, u_int32_t d) 256 { 257 bus_space_write_1(iot, ioh, off, GEMTEK_PCI_RSET); 258 } 259 260 u_int32_t 261 gtp_hardware_read(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off) 262 { 263 /* UNSUPPORTED */ 264 return 0; 265 } 266 267 int 268 gtp_state(bus_space_tag_t iot, bus_space_handle_t ioh) 269 { 270 int ret; 271 272 bus_space_write_2(iot, ioh, 0, 273 GTP_DATA_ON | GTP_WREN_OFF | GTP_CLCK_OFF); 274 ret = bus_space_read_2(iot, ioh, 0) & 275 GEMTEK_PCI_STEREO? 0 : RADIO_INFO_STEREO; 276 bus_space_write_2(iot, ioh, 0, 277 GTP_DATA_ON | GTP_WREN_OFF | GTP_CLCK_ON); 278 ret |= bus_space_read_2(iot, ioh, 0) & 279 GEMTEK_PCI_SIGNAL? 0 : RADIO_INFO_SIGNAL; 280 281 return ret; 282 } 283