1/* $NetBSD: gtp.c,v 1.20 2016/07/11 11:31:51 msaitoh 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/cdefs.h> 32__KERNEL_RCSID(0, "$NetBSD: gtp.c,v 1.20 2016/07/11 11:31:51 msaitoh Exp $"); 33 34#include <sys/param.h> 35#include <sys/systm.h> 36#include <sys/device.h> 37#include <sys/errno.h> 38#include <sys/ioctl.h> 39#include <sys/proc.h> 40#include <sys/radioio.h> 41 42#include <sys/bus.h> 43 44#include <dev/pci/pcireg.h> 45#include <dev/pci/pcivar.h> 46#include <dev/pci/pcidevs.h> 47 48#include <dev/ic/tea5757.h> 49#include <dev/radio_if.h> 50 51#define PCI_CBIO 0x10 52 53static int gtp_match(device_t, cfdata_t, void *); 54static void gtp_attach(device_t, device_t, void *); 55 56static int gtp_get_info(void *, struct radio_info *); 57static int gtp_set_info(void *, struct radio_info *); 58static int gtp_search(void *, int); 59 60#define GEMTEK_PCI_CAPS RADIO_CAPS_DETECT_SIGNAL | \ 61 RADIO_CAPS_DETECT_STEREO | \ 62 RADIO_CAPS_SET_MONO | \ 63 RADIO_CAPS_HW_SEARCH | \ 64 RADIO_CAPS_HW_AFC | \ 65 RADIO_CAPS_LOCK_SENSITIVITY 66 67#define GEMTEK_PCI_MUTE 0x00 68#define GEMTEK_PCI_RSET 0x10 69 70#define GEMTEK_PCI_SIGNAL 0x08 71#define GEMTEK_PCI_STEREO 0x08 72 73#define GTP_WREN_ON (1 << 2) 74#define GTP_WREN_OFF (0 << 2) 75 76#define GTP_DATA_ON (1 << 1) 77#define GTP_DATA_OFF (0 << 1) 78 79#define GTP_CLCK_ON (1 << 0) 80#define GTP_CLCK_OFF (0 << 0) 81 82#define GTP_READ_CLOCK_LOW (GTP_WREN_OFF | GTP_DATA_ON | GTP_CLCK_OFF) 83#define GTP_READ_CLOCK_HIGH (GTP_WREN_OFF | GTP_DATA_ON | GTP_CLCK_ON) 84 85/* define our interface to the high-level radio driver */ 86 87static const struct radio_hw_if gtp_hw_if = { 88 NULL, /* open */ 89 NULL, /* close */ 90 gtp_get_info, 91 gtp_set_info, 92 gtp_search 93}; 94 95struct gtp_softc { 96 int mute; 97 u_int8_t vol; 98 u_int32_t freq; 99 u_int32_t stereo; 100 u_int32_t lock; 101 102 struct tea5757_t tea; 103}; 104 105CFATTACH_DECL_NEW(gtp, sizeof(struct gtp_softc), 106 gtp_match, gtp_attach, NULL, NULL); 107 108static void gtp_set_mute(struct gtp_softc *); 109static void gtp_write_bit(bus_space_tag_t, bus_space_handle_t, bus_size_t, 110 int); 111static void gtp_init(bus_space_tag_t, bus_space_handle_t, bus_size_t, 112 u_int32_t); 113static void gtp_rset(bus_space_tag_t, bus_space_handle_t, bus_size_t, 114 u_int32_t); 115static int gtp_state(bus_space_tag_t, bus_space_handle_t); 116static uint32_t gtp_hardware_read(bus_space_tag_t, bus_space_handle_t, 117 bus_size_t); 118 119static int 120gtp_match(device_t parent, cfdata_t cf, void *aux) 121{ 122 struct pci_attach_args *pa = aux; 123 /* FIXME: 124 * Guillemot produces the card that 125 * was originally developed by Gemtek 126 */ 127#if 0 128 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_GEMTEK && 129 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_GEMTEK_PR103) 130 return (1); 131#else 132 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_GUILLEMOT && 133 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_GUILLEMOT_MAXIRADIO) 134 return (1); 135#endif 136 return (0); 137} 138 139static void 140gtp_attach(device_t parent, device_t self, void *aux) 141{ 142 struct gtp_softc *sc = device_private(self); 143 struct pci_attach_args *pa = aux; 144 cfdata_t cf = device_cfdata(self); 145 pci_chipset_tag_t pc = pa->pa_pc; 146 bus_size_t iosize; 147 pcireg_t csr; 148 149 pci_aprint_devinfo(pa, "Radio controller"); 150 151 /* Map I/O registers */ 152 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, &sc->tea.iot, 153 &sc->tea.ioh, NULL, &iosize)) { 154 aprint_error(": can't map i/o space\n"); 155 return; 156 } 157 158 /* Enable the card */ 159 csr = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 160 pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 161 csr | PCI_COMMAND_MASTER_ENABLE); 162 163 sc->vol = 0; 164 sc->mute = 0; 165 sc->freq = MIN_FM_FREQ; 166 sc->stereo = TEA5757_STEREO; 167 sc->lock = TEA5757_S030; 168 sc->tea.offset = 0; 169 sc->tea.flags = cf->cf_flags; 170 sc->tea.init = gtp_init; 171 sc->tea.rset = gtp_rset; 172 sc->tea.write_bit = gtp_write_bit; 173 sc->tea.read = gtp_hardware_read; 174 175 aprint_normal(": Gemtek PR103\n"); 176 177 radio_attach_mi(>p_hw_if, sc, self); 178} 179 180static int 181gtp_get_info(void *v, struct radio_info *ri) 182{ 183 struct gtp_softc *sc = v; 184 185 ri->mute = sc->mute; 186 ri->volume = sc->vol ? 255 : 0; 187 ri->stereo = sc->stereo == TEA5757_STEREO ? 1 : 0; 188 ri->caps = GEMTEK_PCI_CAPS; 189 ri->rfreq = 0; 190 ri->lock = tea5757_decode_lock(sc->lock); 191 192 /* Frequency read unsupported */ 193 ri->freq = sc->freq; 194 195 ri->info = gtp_state(sc->tea.iot, sc->tea.ioh); 196 gtp_set_mute(sc); 197 198 return (0); 199} 200 201static int 202gtp_set_info(void *v, struct radio_info *ri) 203{ 204 struct gtp_softc *sc = v; 205 206 sc->mute = ri->mute ? 1 : 0; 207 sc->vol = ri->volume ? 255 : 0; 208 sc->stereo = ri->stereo ? TEA5757_STEREO: TEA5757_MONO; 209 sc->lock = tea5757_encode_lock(ri->lock); 210 ri->freq = sc->freq = tea5757_set_freq(&sc->tea, 211 sc->lock, sc->stereo, ri->freq); 212 gtp_set_mute(sc); 213 214 return (0); 215} 216 217static int 218gtp_search(void *v, int f) 219{ 220 struct gtp_softc *sc = v; 221 222 tea5757_search(&sc->tea, sc->lock, sc->stereo, f); 223 gtp_set_mute(sc); 224 225 return (0); 226} 227 228static void 229gtp_set_mute(struct gtp_softc *sc) 230{ 231 if (sc->mute || !sc->vol) 232 bus_space_write_2(sc->tea.iot, sc->tea.ioh, 0, GEMTEK_PCI_MUTE); 233 else 234 sc->freq = tea5757_set_freq(&sc->tea, 235 sc->lock, sc->stereo, sc->freq); 236} 237 238static void 239gtp_write_bit(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off, 240 int bit) 241{ 242 u_int8_t data; 243 244 data = bit ? GTP_DATA_ON : GTP_DATA_OFF; 245 bus_space_write_1(iot, ioh, off, GTP_WREN_ON | GTP_CLCK_OFF | data); 246 bus_space_write_1(iot, ioh, off, GTP_WREN_ON | GTP_CLCK_ON | data); 247 bus_space_write_1(iot, ioh, off, GTP_WREN_ON | GTP_CLCK_OFF | data); 248} 249 250static void 251gtp_init(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off, 252 u_int32_t d) 253{ 254 bus_space_write_1(iot, ioh, off, GTP_WREN_ON | GTP_DATA_ON | GTP_CLCK_OFF); 255} 256 257static void 258gtp_rset(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off, 259 u_int32_t d) 260{ 261 bus_space_write_1(iot, ioh, off, GEMTEK_PCI_RSET); 262} 263 264static uint32_t 265gtp_hardware_read(bus_space_tag_t iot, bus_space_handle_t ioh, 266 bus_size_t off) 267{ 268 /* UNSUPPORTED */ 269 return 0; 270} 271 272static int 273gtp_state(bus_space_tag_t iot, bus_space_handle_t ioh) 274{ 275 int ret; 276 277 bus_space_write_2(iot, ioh, 0, 278 GTP_DATA_ON | GTP_WREN_OFF | GTP_CLCK_OFF); 279 ret = bus_space_read_2(iot, ioh, 0) & 280 GEMTEK_PCI_STEREO? 0 : RADIO_INFO_STEREO; 281 bus_space_write_2(iot, ioh, 0, 282 GTP_DATA_ON | GTP_WREN_OFF | GTP_CLCK_ON); 283 ret |= bus_space_read_2(iot, ioh, 0) & 284 GEMTEK_PCI_SIGNAL? 0 : RADIO_INFO_SIGNAL; 285 286 return ret; 287} 288