tegra_hdaudio.c revision 1.9.2.2
1 1.9.2.2 jdolecek /* $NetBSD: tegra_hdaudio.c,v 1.9.2.2 2017/12/03 11:35:54 jdolecek Exp $ */ 2 1.9.2.2 jdolecek 3 1.9.2.2 jdolecek /*- 4 1.9.2.2 jdolecek * Copyright (c) 2015 Jared D. McNeill <jmcneill (at) invisible.ca> 5 1.9.2.2 jdolecek * All rights reserved. 6 1.9.2.2 jdolecek * 7 1.9.2.2 jdolecek * Redistribution and use in source and binary forms, with or without 8 1.9.2.2 jdolecek * modification, are permitted provided that the following conditions 9 1.9.2.2 jdolecek * are met: 10 1.9.2.2 jdolecek * 1. Redistributions of source code must retain the above copyright 11 1.9.2.2 jdolecek * notice, this list of conditions and the following disclaimer. 12 1.9.2.2 jdolecek * 2. Redistributions in binary form must reproduce the above copyright 13 1.9.2.2 jdolecek * notice, this list of conditions and the following disclaimer in the 14 1.9.2.2 jdolecek * documentation and/or other materials provided with the distribution. 15 1.9.2.2 jdolecek * 16 1.9.2.2 jdolecek * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 1.9.2.2 jdolecek * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 1.9.2.2 jdolecek * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 1.9.2.2 jdolecek * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 1.9.2.2 jdolecek * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 1.9.2.2 jdolecek * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 1.9.2.2 jdolecek * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 1.9.2.2 jdolecek * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 1.9.2.2 jdolecek * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 1.9.2.2 jdolecek * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 1.9.2.2 jdolecek * SUCH DAMAGE. 27 1.9.2.2 jdolecek */ 28 1.9.2.2 jdolecek 29 1.9.2.2 jdolecek #include <sys/cdefs.h> 30 1.9.2.2 jdolecek __KERNEL_RCSID(0, "$NetBSD: tegra_hdaudio.c,v 1.9.2.2 2017/12/03 11:35:54 jdolecek Exp $"); 31 1.9.2.2 jdolecek 32 1.9.2.2 jdolecek #include <sys/param.h> 33 1.9.2.2 jdolecek #include <sys/bus.h> 34 1.9.2.2 jdolecek #include <sys/device.h> 35 1.9.2.2 jdolecek #include <sys/intr.h> 36 1.9.2.2 jdolecek #include <sys/systm.h> 37 1.9.2.2 jdolecek #include <sys/kernel.h> 38 1.9.2.2 jdolecek 39 1.9.2.2 jdolecek #include <dev/hdaudio/hdaudioreg.h> 40 1.9.2.2 jdolecek #include <dev/hdaudio/hdaudiovar.h> 41 1.9.2.2 jdolecek 42 1.9.2.2 jdolecek #include <arm/nvidia/tegra_var.h> 43 1.9.2.2 jdolecek #include <arm/nvidia/tegra_pmcreg.h> 44 1.9.2.2 jdolecek #include <arm/nvidia/tegra_hdaudioreg.h> 45 1.9.2.2 jdolecek 46 1.9.2.2 jdolecek #include <dev/fdt/fdtvar.h> 47 1.9.2.2 jdolecek 48 1.9.2.2 jdolecek #define TEGRA_HDAUDIO_OFFSET 0x8000 49 1.9.2.2 jdolecek 50 1.9.2.2 jdolecek #define TEGRA_HDA_IFPS_BAR0_REG 0x0080 51 1.9.2.2 jdolecek #define TEGRA_HDA_IFPS_CONFIG_REG 0x0180 52 1.9.2.2 jdolecek #define TEGRA_HDA_IFPS_INTR_REG 0x0188 53 1.9.2.2 jdolecek #define TEGRA_HDA_CFG_CMD_REG 0x1004 54 1.9.2.2 jdolecek #define TEGRA_HDA_CFG_BAR0_REG 0x1010 55 1.9.2.2 jdolecek 56 1.9.2.2 jdolecek static int tegra_hdaudio_match(device_t, cfdata_t, void *); 57 1.9.2.2 jdolecek static void tegra_hdaudio_attach(device_t, device_t, void *); 58 1.9.2.2 jdolecek static int tegra_hdaudio_detach(device_t, int); 59 1.9.2.2 jdolecek static int tegra_hdaudio_rescan(device_t, const char *, const int *); 60 1.9.2.2 jdolecek static void tegra_hdaudio_childdet(device_t, device_t); 61 1.9.2.2 jdolecek 62 1.9.2.2 jdolecek static int tegra_hdaudio_intr(void *); 63 1.9.2.2 jdolecek 64 1.9.2.2 jdolecek struct tegra_hdaudio_softc { 65 1.9.2.2 jdolecek struct hdaudio_softc sc; 66 1.9.2.2 jdolecek bus_space_tag_t sc_bst; 67 1.9.2.2 jdolecek bus_space_handle_t sc_bsh; 68 1.9.2.2 jdolecek void *sc_ih; 69 1.9.2.2 jdolecek int sc_phandle; 70 1.9.2.2 jdolecek struct clk *sc_clk_hda; 71 1.9.2.2 jdolecek struct clk *sc_clk_hda2hdmi; 72 1.9.2.2 jdolecek struct clk *sc_clk_hda2codec_2x; 73 1.9.2.2 jdolecek struct fdtbus_reset *sc_rst_hda; 74 1.9.2.2 jdolecek struct fdtbus_reset *sc_rst_hda2hdmi; 75 1.9.2.2 jdolecek struct fdtbus_reset *sc_rst_hda2codec_2x; 76 1.9.2.2 jdolecek }; 77 1.9.2.2 jdolecek 78 1.9.2.2 jdolecek static int tegra_hdaudio_init_clocks(struct tegra_hdaudio_softc *); 79 1.9.2.2 jdolecek static void tegra_hdaudio_init(struct tegra_hdaudio_softc *); 80 1.9.2.2 jdolecek 81 1.9.2.2 jdolecek CFATTACH_DECL2_NEW(tegra_hdaudio, sizeof(struct tegra_hdaudio_softc), 82 1.9.2.2 jdolecek tegra_hdaudio_match, tegra_hdaudio_attach, tegra_hdaudio_detach, NULL, 83 1.9.2.2 jdolecek tegra_hdaudio_rescan, tegra_hdaudio_childdet); 84 1.9.2.2 jdolecek 85 1.9.2.2 jdolecek static int 86 1.9.2.2 jdolecek tegra_hdaudio_match(device_t parent, cfdata_t cf, void *aux) 87 1.9.2.2 jdolecek { 88 1.9.2.2 jdolecek const char * const compatible[] = { 89 1.9.2.2 jdolecek "nvidia,tegra210-hda", 90 1.9.2.2 jdolecek "nvidia,tegra124-hda", 91 1.9.2.2 jdolecek NULL 92 1.9.2.2 jdolecek }; 93 1.9.2.2 jdolecek struct fdt_attach_args * const faa = aux; 94 1.9.2.2 jdolecek 95 1.9.2.2 jdolecek return of_match_compatible(faa->faa_phandle, compatible); 96 1.9.2.2 jdolecek } 97 1.9.2.2 jdolecek 98 1.9.2.2 jdolecek static void 99 1.9.2.2 jdolecek tegra_hdaudio_attach(device_t parent, device_t self, void *aux) 100 1.9.2.2 jdolecek { 101 1.9.2.2 jdolecek struct tegra_hdaudio_softc * const sc = device_private(self); 102 1.9.2.2 jdolecek struct fdt_attach_args * const faa = aux; 103 1.9.2.2 jdolecek const int phandle = faa->faa_phandle; 104 1.9.2.2 jdolecek char intrstr[128]; 105 1.9.2.2 jdolecek bus_addr_t addr; 106 1.9.2.2 jdolecek bus_size_t size; 107 1.9.2.2 jdolecek int error; 108 1.9.2.2 jdolecek 109 1.9.2.2 jdolecek if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) { 110 1.9.2.2 jdolecek aprint_error(": couldn't get registers\n"); 111 1.9.2.2 jdolecek return; 112 1.9.2.2 jdolecek } 113 1.9.2.2 jdolecek sc->sc_clk_hda = fdtbus_clock_get(phandle, "hda"); 114 1.9.2.2 jdolecek if (sc->sc_clk_hda == NULL) { 115 1.9.2.2 jdolecek aprint_error(": couldn't get clock hda\n"); 116 1.9.2.2 jdolecek return; 117 1.9.2.2 jdolecek } 118 1.9.2.2 jdolecek sc->sc_clk_hda2hdmi = fdtbus_clock_get(phandle, "hda2hdmi"); 119 1.9.2.2 jdolecek if (sc->sc_clk_hda2hdmi == NULL) { 120 1.9.2.2 jdolecek aprint_error(": couldn't get clock hda2hdmi\n"); 121 1.9.2.2 jdolecek return; 122 1.9.2.2 jdolecek } 123 1.9.2.2 jdolecek sc->sc_clk_hda2codec_2x = fdtbus_clock_get(phandle, "hda2codec_2x"); 124 1.9.2.2 jdolecek if (sc->sc_clk_hda2codec_2x == NULL) { 125 1.9.2.2 jdolecek aprint_error(": couldn't get clock hda2codec_2x\n"); 126 1.9.2.2 jdolecek return; 127 1.9.2.2 jdolecek } 128 1.9.2.2 jdolecek sc->sc_rst_hda = fdtbus_reset_get(phandle, "hda"); 129 1.9.2.2 jdolecek if (sc->sc_rst_hda == NULL) { 130 1.9.2.2 jdolecek aprint_error(": couldn't get reset hda\n"); 131 1.9.2.2 jdolecek return; 132 1.9.2.2 jdolecek } 133 1.9.2.2 jdolecek sc->sc_rst_hda2hdmi = fdtbus_reset_get(phandle, "hda2hdmi"); 134 1.9.2.2 jdolecek if (sc->sc_rst_hda2hdmi == NULL) { 135 1.9.2.2 jdolecek aprint_error(": couldn't get reset hda2hdmi\n"); 136 1.9.2.2 jdolecek return; 137 1.9.2.2 jdolecek } 138 1.9.2.2 jdolecek sc->sc_rst_hda2codec_2x = fdtbus_reset_get(phandle, "hda2codec_2x"); 139 1.9.2.2 jdolecek if (sc->sc_rst_hda2codec_2x == NULL) { 140 1.9.2.2 jdolecek aprint_error(": couldn't get reset hda2codec_2x\n"); 141 1.9.2.2 jdolecek return; 142 1.9.2.2 jdolecek } 143 1.9.2.2 jdolecek 144 1.9.2.2 jdolecek sc->sc_phandle = phandle; 145 1.9.2.2 jdolecek sc->sc_bst = faa->faa_bst; 146 1.9.2.2 jdolecek error = bus_space_map(sc->sc_bst, addr, size, 0, &sc->sc_bsh); 147 1.9.2.2 jdolecek if (error) { 148 1.9.2.2 jdolecek aprint_error(": couldn't map %#llx: %d", (uint64_t)addr, error); 149 1.9.2.2 jdolecek return; 150 1.9.2.2 jdolecek } 151 1.9.2.2 jdolecek 152 1.9.2.2 jdolecek sc->sc.sc_dev = self; 153 1.9.2.2 jdolecek sc->sc.sc_memt = faa->faa_bst; 154 1.9.2.2 jdolecek bus_space_subregion(sc->sc.sc_memt, sc->sc_bsh, TEGRA_HDAUDIO_OFFSET, 155 1.9.2.2 jdolecek size - TEGRA_HDAUDIO_OFFSET, &sc->sc.sc_memh); 156 1.9.2.2 jdolecek sc->sc.sc_memvalid = true; 157 1.9.2.2 jdolecek sc->sc.sc_dmat = faa->faa_dmat; 158 1.9.2.2 jdolecek 159 1.9.2.2 jdolecek aprint_naive("\n"); 160 1.9.2.2 jdolecek aprint_normal(": HDA\n"); 161 1.9.2.2 jdolecek 162 1.9.2.2 jdolecek if (!fdtbus_intr_str(phandle, 0, intrstr, sizeof(intrstr))) { 163 1.9.2.2 jdolecek aprint_error_dev(self, "failed to decode interrupt\n"); 164 1.9.2.2 jdolecek return; 165 1.9.2.2 jdolecek } 166 1.9.2.2 jdolecek 167 1.9.2.2 jdolecek sc->sc_ih = fdtbus_intr_establish(phandle, 0, IPL_AUDIO, 0, 168 1.9.2.2 jdolecek tegra_hdaudio_intr, sc); 169 1.9.2.2 jdolecek if (sc->sc_ih == NULL) { 170 1.9.2.2 jdolecek aprint_error_dev(self, "couldn't establish interrupt on %s\n", 171 1.9.2.2 jdolecek intrstr); 172 1.9.2.2 jdolecek return; 173 1.9.2.2 jdolecek } 174 1.9.2.2 jdolecek aprint_normal_dev(self, "interrupting on %s\n", intrstr); 175 1.9.2.2 jdolecek 176 1.9.2.2 jdolecek tegra_pmc_power(PMC_PARTID_DISB, true); 177 1.9.2.2 jdolecek 178 1.9.2.2 jdolecek if (tegra_hdaudio_init_clocks(sc) != 0) 179 1.9.2.2 jdolecek return; 180 1.9.2.2 jdolecek 181 1.9.2.2 jdolecek tegra_hdaudio_init(sc); 182 1.9.2.2 jdolecek 183 1.9.2.2 jdolecek hdaudio_attach(self, &sc->sc); 184 1.9.2.2 jdolecek } 185 1.9.2.2 jdolecek 186 1.9.2.2 jdolecek static int 187 1.9.2.2 jdolecek tegra_hdaudio_init_clocks(struct tegra_hdaudio_softc *sc) 188 1.9.2.2 jdolecek { 189 1.9.2.2 jdolecek device_t self = sc->sc.sc_dev; 190 1.9.2.2 jdolecek int error; 191 1.9.2.2 jdolecek 192 1.9.2.2 jdolecek /* Assert resets */ 193 1.9.2.2 jdolecek fdtbus_reset_assert(sc->sc_rst_hda); 194 1.9.2.2 jdolecek fdtbus_reset_assert(sc->sc_rst_hda2hdmi); 195 1.9.2.2 jdolecek fdtbus_reset_assert(sc->sc_rst_hda2codec_2x); 196 1.9.2.2 jdolecek 197 1.9.2.2 jdolecek /* Set hda to 48MHz and enable it */ 198 1.9.2.2 jdolecek error = clk_set_rate(sc->sc_clk_hda, 48000000); 199 1.9.2.2 jdolecek if (error) { 200 1.9.2.2 jdolecek aprint_error_dev(self, "couldn't set hda frequency: %d\n", 201 1.9.2.2 jdolecek error); 202 1.9.2.2 jdolecek return error; 203 1.9.2.2 jdolecek } 204 1.9.2.2 jdolecek error = clk_enable(sc->sc_clk_hda); 205 1.9.2.2 jdolecek if (error) { 206 1.9.2.2 jdolecek aprint_error_dev(self, "couldn't enable clock hda: %d\n", 207 1.9.2.2 jdolecek error); 208 1.9.2.2 jdolecek return error; 209 1.9.2.2 jdolecek } 210 1.9.2.2 jdolecek 211 1.9.2.2 jdolecek /* Enable hda2hdmi clock */ 212 1.9.2.2 jdolecek error = clk_enable(sc->sc_clk_hda2hdmi); 213 1.9.2.2 jdolecek if (error) { 214 1.9.2.2 jdolecek aprint_error_dev(self, "couldn't enable clock hda2hdmi: %d\n", 215 1.9.2.2 jdolecek error); 216 1.9.2.2 jdolecek return error; 217 1.9.2.2 jdolecek } 218 1.9.2.2 jdolecek 219 1.9.2.2 jdolecek /* Set hda2codec_2x to 48MHz and enable it */ 220 1.9.2.2 jdolecek error = clk_set_rate(sc->sc_clk_hda2codec_2x, 48000000); 221 1.9.2.2 jdolecek if (error) { 222 1.9.2.2 jdolecek aprint_error_dev(self, 223 1.9.2.2 jdolecek "couldn't set clock hda2codec_2x frequency: %d\n", error); 224 1.9.2.2 jdolecek return error; 225 1.9.2.2 jdolecek } 226 1.9.2.2 jdolecek error = clk_enable(sc->sc_clk_hda2codec_2x); 227 1.9.2.2 jdolecek if (error) { 228 1.9.2.2 jdolecek aprint_error_dev(self, 229 1.9.2.2 jdolecek "couldn't enable clock hda2codec_2x: %d\n", error); 230 1.9.2.2 jdolecek return error; 231 1.9.2.2 jdolecek } 232 1.9.2.2 jdolecek 233 1.9.2.2 jdolecek /* De-assert resets */ 234 1.9.2.2 jdolecek fdtbus_reset_deassert(sc->sc_rst_hda); 235 1.9.2.2 jdolecek fdtbus_reset_deassert(sc->sc_rst_hda2hdmi); 236 1.9.2.2 jdolecek fdtbus_reset_deassert(sc->sc_rst_hda2codec_2x); 237 1.9.2.2 jdolecek 238 1.9.2.2 jdolecek return 0; 239 1.9.2.2 jdolecek } 240 1.9.2.2 jdolecek 241 1.9.2.2 jdolecek static void 242 1.9.2.2 jdolecek tegra_hdaudio_init(struct tegra_hdaudio_softc *sc) 243 1.9.2.2 jdolecek { 244 1.9.2.2 jdolecek tegra_reg_set_clear(sc->sc_bst, sc->sc_bsh, TEGRA_HDA_IFPS_CONFIG_REG, 245 1.9.2.2 jdolecek TEGRA_HDA_IFPS_CONFIG_FPCI_EN, 0); 246 1.9.2.2 jdolecek tegra_reg_set_clear(sc->sc_bst, sc->sc_bsh, TEGRA_HDA_CFG_CMD_REG, 247 1.9.2.2 jdolecek TEGRA_HDA_CFG_CMD_ENABLE_SERR | 248 1.9.2.2 jdolecek TEGRA_HDA_CFG_CMD_BUS_MASTER | 249 1.9.2.2 jdolecek TEGRA_HDA_CFG_CMD_MEM_SPACE | 250 1.9.2.2 jdolecek TEGRA_HDA_CFG_CMD_IO_SPACE, 251 1.9.2.2 jdolecek TEGRA_HDA_CFG_CMD_DISABLE_INTR); 252 1.9.2.2 jdolecek bus_space_write_4(sc->sc_bst, sc->sc_bsh, TEGRA_HDA_CFG_BAR0_REG, 253 1.9.2.2 jdolecek 0xffffffff); 254 1.9.2.2 jdolecek bus_space_write_4(sc->sc_bst, sc->sc_bsh, TEGRA_HDA_CFG_BAR0_REG, 255 1.9.2.2 jdolecek 0x00004000); 256 1.9.2.2 jdolecek bus_space_write_4(sc->sc_bst, sc->sc_bsh, TEGRA_HDA_IFPS_BAR0_REG, 257 1.9.2.2 jdolecek TEGRA_HDA_CFG_BAR0_START); 258 1.9.2.2 jdolecek tegra_reg_set_clear(sc->sc_bst, sc->sc_bsh, TEGRA_HDA_IFPS_INTR_REG, 259 1.9.2.2 jdolecek TEGRA_HDA_IFPS_INTR_EN, 0); 260 1.9.2.2 jdolecek } 261 1.9.2.2 jdolecek 262 1.9.2.2 jdolecek static int 263 1.9.2.2 jdolecek tegra_hdaudio_detach(device_t self, int flags) 264 1.9.2.2 jdolecek { 265 1.9.2.2 jdolecek struct tegra_hdaudio_softc * const sc = device_private(self); 266 1.9.2.2 jdolecek 267 1.9.2.2 jdolecek hdaudio_detach(&sc->sc, flags); 268 1.9.2.2 jdolecek 269 1.9.2.2 jdolecek if (sc->sc_ih) { 270 1.9.2.2 jdolecek fdtbus_intr_disestablish(sc->sc_phandle, sc->sc_ih); 271 1.9.2.2 jdolecek sc->sc_ih = NULL; 272 1.9.2.2 jdolecek } 273 1.9.2.2 jdolecek 274 1.9.2.2 jdolecek sc->sc.sc_memvalid = false; 275 1.9.2.2 jdolecek 276 1.9.2.2 jdolecek return 0; 277 1.9.2.2 jdolecek } 278 1.9.2.2 jdolecek 279 1.9.2.2 jdolecek static int 280 1.9.2.2 jdolecek tegra_hdaudio_rescan(device_t self, const char *ifattr, const int *locs) 281 1.9.2.2 jdolecek { 282 1.9.2.2 jdolecek struct tegra_hdaudio_softc * const sc = device_private(self); 283 1.9.2.2 jdolecek 284 1.9.2.2 jdolecek return hdaudio_rescan(&sc->sc, ifattr, locs); 285 1.9.2.2 jdolecek } 286 1.9.2.2 jdolecek 287 1.9.2.2 jdolecek static void 288 1.9.2.2 jdolecek tegra_hdaudio_childdet(device_t self, device_t child) 289 1.9.2.2 jdolecek { 290 1.9.2.2 jdolecek struct tegra_hdaudio_softc * const sc = device_private(self); 291 1.9.2.2 jdolecek 292 1.9.2.2 jdolecek hdaudio_childdet(&sc->sc, child); 293 1.9.2.2 jdolecek } 294 1.9.2.2 jdolecek 295 1.9.2.2 jdolecek static int 296 1.9.2.2 jdolecek tegra_hdaudio_intr(void *priv) 297 1.9.2.2 jdolecek { 298 1.9.2.2 jdolecek struct tegra_hdaudio_softc * const sc = priv; 299 1.9.2.2 jdolecek 300 1.9.2.2 jdolecek return hdaudio_intr(&sc->sc); 301 1.9.2.2 jdolecek } 302
Indexes created Sat Nov 01 21:09:44 GMT 2025