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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 | // SPDX-License-Identifier: GPL-2.0+ /* * ACPI driver for DA7219 codec * * Copyright 2019 Google LLC * Parts taken from coreboot */ #include <dm.h> #include <i2c.h> #include <irq.h> #include <log.h> #include <acpi/acpigen.h> #include <acpi/acpi_device.h> #include <acpi/acpi_dp.h> #ifdef CONFIG_X86 #include <asm/acpi_nhlt.h> #endif #include <asm-generic/gpio.h> #include <dt-bindings/sound/nhlt.h> #include <dm/acpi.h> #define DA7219_ACPI_HID "DLGS7219" __maybe_unused static int da7219_acpi_fill_ssdt(const struct udevice *dev, struct acpi_ctx *ctx) { char scope[ACPI_PATH_MAX]; char name[ACPI_NAME_MAX]; struct acpi_dp *dsd, *aad; ofnode node; u32 val; int ret; ret = acpi_device_scope(dev, scope, sizeof(scope)); if (ret) return log_msg_ret("scope", ret); ret = acpi_get_name(dev, name); if (ret) return log_msg_ret("name", ret); /* Device */ acpigen_write_scope(ctx, scope); acpigen_write_device(ctx, name); acpigen_write_name_string(ctx, "_HID", DA7219_ACPI_HID); acpigen_write_name_integer(ctx, "_UID", 1); acpigen_write_name_string(ctx, "_DDN", dev_read_string(dev, "acpi,ddn")); acpigen_write_name_integer(ctx, "_S0W", 4); acpigen_write_sta(ctx, acpi_device_status(dev)); /* Resources */ acpigen_write_name(ctx, "_CRS"); acpigen_write_resourcetemplate_header(ctx); ret = acpi_device_write_i2c_dev(ctx, dev); if (ret < 0) return log_msg_ret("i2c", ret); /* Use either Interrupt() or GpioInt() */ ret = acpi_device_write_interrupt_or_gpio(ctx, (struct udevice *)dev, "req-gpios"); if (ret < 0) return log_msg_ret("irq_gpio", ret); acpigen_write_resourcetemplate_footer(ctx); /* AAD Child Device Properties */ aad = acpi_dp_new_table("DAAD"); if (!aad) return log_msg_ret("aad", -ENOMEM); node = ofnode_find_subnode(dev_ofnode(dev), "da7219_aad"); if (!ofnode_valid(node)) return log_msg_ret("da7219_aad", -EINVAL); acpi_dp_ofnode_copy_int(node, aad, "dlg,btn-cfg"); acpi_dp_ofnode_copy_int(node, aad, "dlg,mic-det-thr"); acpi_dp_ofnode_copy_int(node, aad, "dlg,jack-ins-deb"); acpi_dp_ofnode_copy_str(node, aad, "dlg,jack-det-rate"); acpi_dp_ofnode_copy_int(node, aad, "dlg,jack-rem-deb"); acpi_dp_ofnode_copy_int(node, aad, "dlg,a-d-btn-thr"); acpi_dp_ofnode_copy_int(node, aad, "dlg,d-b-btn-thr"); acpi_dp_ofnode_copy_int(node, aad, "dlg,b-c-btn-thr"); acpi_dp_ofnode_copy_int(node, aad, "dlg,c-mic-btn-thr"); acpi_dp_ofnode_copy_int(node, aad, "dlg,btn-avg"); acpi_dp_ofnode_copy_int(node, aad, "dlg,adc-1bit-rpt"); if (!ofnode_read_u32(node, "dlg,micbias-pulse-lvl", &val)) { acpi_dp_ofnode_copy_int(node, aad, "dlg,micbias-pulse-lvl"); acpi_dp_ofnode_copy_int(node, aad, "dlg,micbias-pulse-time"); } /* DA7219 Properties */ dsd = acpi_dp_new_table("_DSD"); if (!dsd) return log_msg_ret("dsd", -ENOMEM); acpi_dp_dev_copy_int(dev, dsd, "dlg,micbias-lvl"); acpi_dp_dev_copy_str(dev, dsd, "dlg,mic-amp-in-sel"); acpi_dp_dev_copy_str(dev, dsd, "dlg,mclk-name"); acpi_dp_add_child(dsd, "da7219_aad", aad); /* Write Device Property Hierarchy */ acpi_dp_write(ctx, dsd); acpigen_pop_len(ctx); /* Device */ acpigen_pop_len(ctx); /* Scope */ return 0; } /* For now only X86 boards support NHLT */ #ifdef CONFIG_X86 static const struct nhlt_format_config da7219_formats[] = { /* 48 KHz 24-bits per sample. */ { .num_channels = 2, .sample_freq_khz = 48, .container_bits_per_sample = 32, .valid_bits_per_sample = 24, .settings_file = "dialog-2ch-48khz-24b.dat", }, }; static const struct nhlt_tdm_config tdm_config = { .virtual_slot = 0, .config_type = NHLT_TDM_BASIC, }; static const struct nhlt_endp_descriptor da7219_descriptors[] = { /* Render Endpoint */ { .link = NHLT_LINK_SSP, .device = NHLT_SSP_DEV_I2S, .direction = NHLT_DIR_RENDER, .vid = NHLT_VID, .did = NHLT_DID_SSP, .cfg = &tdm_config, .cfg_size = sizeof(tdm_config), .formats = da7219_formats, .num_formats = ARRAY_SIZE(da7219_formats), }, /* Capture Endpoint */ { .link = NHLT_LINK_SSP, .device = NHLT_SSP_DEV_I2S, .direction = NHLT_DIR_CAPTURE, .vid = NHLT_VID, .did = NHLT_DID_SSP, .cfg = &tdm_config, .cfg_size = sizeof(tdm_config), .formats = da7219_formats, .num_formats = ARRAY_SIZE(da7219_formats), }, }; static int da7219_acpi_setup_nhlt(const struct udevice *dev, struct acpi_ctx *ctx) { u32 hwlink; int ret; if (dev_read_u32(dev, "acpi,audio-link", &hwlink)) return log_msg_ret("link", -EINVAL); /* Virtual bus id of SSP links are the hardware port ids proper. */ ret = nhlt_add_ssp_endpoints(ctx->nhlt, hwlink, da7219_descriptors, ARRAY_SIZE(da7219_descriptors)); if (ret) return log_msg_ret("add", ret); return 0; } #endif struct acpi_ops da7219_acpi_ops = { #ifdef CONFIG_ACPIGEN .fill_ssdt = da7219_acpi_fill_ssdt, #ifdef CONFIG_X86 .setup_nhlt = da7219_acpi_setup_nhlt, #endif #endif }; static const struct udevice_id da7219_ids[] = { { .compatible = "dlg,da7219" }, { } }; U_BOOT_DRIVER(da7219) = { .name = "da7219", .id = UCLASS_MISC, .of_match = da7219_ids, ACPI_OPS_PTR(&da7219_acpi_ops) }; |