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-rw-r--r--src/drivers/i2c/da7219/Kconfig2
-rw-r--r--src/drivers/i2c/da7219/Makefile.inc1
-rw-r--r--src/drivers/i2c/da7219/chip.h106
-rw-r--r--src/drivers/i2c/da7219/da7219.c122
4 files changed, 231 insertions, 0 deletions
diff --git a/src/drivers/i2c/da7219/Kconfig b/src/drivers/i2c/da7219/Kconfig
new file mode 100644
index 0000000000..5539af1b47
--- /dev/null
+++ b/src/drivers/i2c/da7219/Kconfig
@@ -0,0 +1,2 @@
+config DRIVERS_I2C_DA7219
+ bool
diff --git a/src/drivers/i2c/da7219/Makefile.inc b/src/drivers/i2c/da7219/Makefile.inc
new file mode 100644
index 0000000000..354a330b23
--- /dev/null
+++ b/src/drivers/i2c/da7219/Makefile.inc
@@ -0,0 +1 @@
+ramstage-$(CONFIG_DRIVERS_I2C_DA7219) += da7219.c
diff --git a/src/drivers/i2c/da7219/chip.h b/src/drivers/i2c/da7219/chip.h
new file mode 100644
index 0000000000..823b940e67
--- /dev/null
+++ b/src/drivers/i2c/da7219/chip.h
@@ -0,0 +1,106 @@
+#include <arch/acpi_device.h>
+
+/*
+ * Dialog Semiconductor DA7219 Audio Codec devicetree bindings
+ * linux/Documentation/devicetree/bindings/sound/da7219.txt
+ */
+struct drivers_i2c_da7219_config {
+ /* Interrupt configuration */
+ struct acpi_irq irq;
+
+ /* I2C Bus Frequency in Hertz (default 400kHz) */
+ unsigned bus_speed;
+
+ /*
+ * micbias-lvl : Voltage (mV) for Mic Bias
+ * [<1600>, <1800>, <2000>, <2200>, <2400>, <2600>]
+ */
+ unsigned micbias_lvl;
+
+ /*
+ * mic-amp-in-sel : Mic input source type
+ * ["diff", "se_p", "se_n"]
+ */
+ const char *mic_amp_in_sel;
+
+ /*
+ * Properties for da7219_aad child node
+ */
+
+ /*
+ * micbias-pulse-lvl : Mic bias higher voltage pulse level (mV)
+ * [<2800>, <2900>]
+ */
+ unsigned micbias_pulse_lvl;
+
+ /*
+ * micbias-pulse-time : Mic bias higher voltage pulse duration (ms)
+ */
+ unsigned micbias_pulse_time;
+
+ /*
+ * btn-cfg : Periodic button press measurements for 4-pole jack (ms)
+ * [<2>, <5>, <10>, <50>, <100>, <200>, <500>]
+ */
+ unsigned btn_cfg;
+
+ /*
+ * mic-det-thr : Impedance threshold for mic detection measurement (Ohms)
+ * [<200>, <500>, <750>, <1000>]
+ */
+ unsigned mic_det_thr;
+
+ /*
+ * jack-ins-deb : Debounce time for jack insertion (ms)
+ * [<5>, <10>, <20>, <50>, <100>, <200>, <500>, <1000>]
+ */
+ unsigned jack_ins_deb;
+
+ /*
+ * jack-det-rate : Jack type detection latency (3/4 pole)
+ * ["32ms_64ms", "64ms_128ms", "128ms_256ms", "256ms_512ms"]
+ */
+ const char *jack_det_rate;
+
+ /*
+ * jack-rem-deb : Debounce time for jack removal (ms)
+ * [<1>, <5>, <10>, <20>]
+ */
+ unsigned jack_rem_deb;
+
+ /*
+ * a-d-btn-thr : Impedance threshold between buttons A and D
+ * [0x0 - 0xFF]
+ */
+ unsigned a_d_btn_thr;
+
+ /*
+ * d-b-btn-thr : Impedance threshold between buttons D and B
+ * [0x0 - 0xFF]
+ */
+ unsigned d_b_btn_thr;
+
+ /*
+ * b-c-btn-thr : Impedance threshold between buttons B and C
+ * [0x0 - 0xFF]
+ */
+ unsigned b_c_btn_thr;
+
+ /*
+ * c-mic-btn-thr : Impedance threshold between button C and Mic
+ * [0x0 - 0xFF]
+ */
+ unsigned c_mic_btn_thr;
+
+ /*
+ * btn-avg : Number of 8-bit readings for averaged button measurement
+ * [<1>, <2>, <4>, <8>]
+ */
+ unsigned btn_avg;
+
+ /*
+ * adc-1bit-rpt : Repeat count for 1-bit button measurement
+ * [<1>, <2>, <4>, <8>]
+ */
+ unsigned adc_1bit_rpt;
+};
diff --git a/src/drivers/i2c/da7219/da7219.c b/src/drivers/i2c/da7219/da7219.c
new file mode 100644
index 0000000000..b29a4a15af
--- /dev/null
+++ b/src/drivers/i2c/da7219/da7219.c
@@ -0,0 +1,122 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2016 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <arch/acpi.h>
+#include <arch/acpi_device.h>
+#include <arch/acpigen.h>
+#include <console/console.h>
+#include <device/i2c.h>
+#include <device/device.h>
+#include <device/path.h>
+#include <stdint.h>
+#include <string.h>
+#include "chip.h"
+
+#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES)
+
+#define DA7219_ACPI_NAME "DLG7"
+#define DA7219_ACPI_HID "DLGS7219"
+
+static void da7219_fill_ssdt(struct device *dev)
+{
+ struct drivers_i2c_da7219_config *config = dev->chip_info;
+ const char *scope = acpi_device_scope(dev);
+ struct acpi_i2c i2c = {
+ .address = dev->path.i2c.device,
+ .mode_10bit = dev->path.i2c.mode_10bit,
+ .speed = config->bus_speed ? : I2C_SPEED_FAST,
+ .resource = scope,
+ };
+ struct acpi_dp *dsd, *aad;
+
+ if (!dev->enabled || !scope)
+ return;
+
+ /* Device */
+ acpigen_write_scope(scope);
+ acpigen_write_device(acpi_device_name(dev));
+ acpigen_write_name_string("_HID", DA7219_ACPI_HID);
+ acpigen_write_name_integer("_UID", 1);
+ acpigen_write_name_string("_DDN", dev->chip_ops->name);
+ acpigen_write_name_integer("_S0W", 4);
+ acpigen_write_STA(ACPI_STATUS_DEVICE_ALL_ON);
+
+ /* Resources */
+ acpigen_write_name("_CRS");
+ acpigen_write_resourcetemplate_header();
+ acpi_device_write_i2c(&i2c);
+ acpi_device_write_interrupt(&config->irq);
+ acpigen_write_resourcetemplate_footer();
+
+ /* AAD Child Device Properties */
+ aad = acpi_dp_new_table("DAAD");
+ acpi_dp_add_integer(aad, "dlg,btn-cfg", config->btn_cfg);
+ acpi_dp_add_integer(aad, "dlg,mic-det-thr", config->mic_det_thr);
+ acpi_dp_add_integer(aad, "dlg,jack-ins-deb", config->jack_ins_deb);
+ acpi_dp_add_string(aad, "dlg,jack-det-rate", config->jack_det_rate);
+ acpi_dp_add_integer(aad, "dlg,jack-rem-deb", config->jack_rem_deb);
+ acpi_dp_add_integer(aad, "dlg,a-d-btn-thr", config->a_d_btn_thr);
+ acpi_dp_add_integer(aad, "dlg,d-b-btn-thr", config->d_b_btn_thr);
+ acpi_dp_add_integer(aad, "dlg,b-c-btn-thr", config->b_c_btn_thr);
+ acpi_dp_add_integer(aad, "dlg,c-mic-btn-thr", config->c_mic_btn_thr);
+ acpi_dp_add_integer(aad, "dlg,btn-avg", config->btn_avg);
+ acpi_dp_add_integer(aad, "dlg,adc-1bit-rpt", config->adc_1bit_rpt);
+ acpi_dp_add_integer(aad, "dlg,micbias-pulse-lvl",
+ config->micbias_pulse_lvl);
+ acpi_dp_add_integer(aad, "dlg,micbias-pulse-time",
+ config->micbias_pulse_time);
+
+ /* DA7219 Properties */
+ dsd = acpi_dp_new_table("_DSD");
+ acpi_dp_add_integer(dsd, "dlg,micbias-lvl", config->micbias_lvl);
+ acpi_dp_add_string(dsd, "dlg,mic-amp-in-sel", config->mic_amp_in_sel);
+ acpi_dp_add_child(dsd, "da7219_aad", aad);
+
+ /* Write Device Property Hierarchy */
+ acpi_dp_write(dsd);
+
+ acpigen_pop_len(); /* Device */
+ acpigen_pop_len(); /* Scope */
+
+ printk(BIOS_INFO, "%s: %s address 0%xh irq %d\n",
+ acpi_device_path(dev), dev->chip_ops->name,
+ dev->path.i2c.device, config->irq.pin);
+}
+
+static const char *da7219_acpi_name(struct device *dev)
+{
+ return DA7219_ACPI_NAME;
+}
+#endif
+
+static struct device_operations da7219_ops = {
+ .read_resources = DEVICE_NOOP,
+ .set_resources = DEVICE_NOOP,
+ .enable_resources = DEVICE_NOOP,
+#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES)
+ .acpi_name = &da7219_acpi_name,
+ .acpi_fill_ssdt_generator = &da7219_fill_ssdt,
+#endif
+};
+
+static void da7219_enable(struct device *dev)
+{
+ dev->ops = &da7219_ops;
+}
+
+struct chip_operations drivers_i2c_da7219_ops = {
+ CHIP_NAME("Dialog Semiconductor DA7219 Audio Codec")
+ .enable_dev = &da7219_enable
+};
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 21:13:19 +0000