Say yes here to access the GPO signals of twl6040
audio chip from Texas Instruments.
-config GPIO_UCB1400
- tristate "Philips UCB1400 GPIO"
- depends on UCB1400_CORE
- help
- This enables support for the Philips UCB1400 GPIO pins.
- The UCB1400 is an AC97 audio codec.
-
config GPIO_WHISKEY_COVE
tristate "GPIO support for Whiskey Cove PMIC"
depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
obj-$(CONFIG_GPIO_TS5500) += gpio-ts5500.o
obj-$(CONFIG_GPIO_TWL4030) += gpio-twl4030.o
obj-$(CONFIG_GPIO_TWL6040) += gpio-twl6040.o
-obj-$(CONFIG_GPIO_UCB1400) += gpio-ucb1400.o
obj-$(CONFIG_GPIO_UNIPHIER) += gpio-uniphier.o
obj-$(CONFIG_GPIO_VF610) += gpio-vf610.o
obj-$(CONFIG_GPIO_VIPERBOARD) += gpio-viperboard.o
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Philips UCB1400 GPIO driver
- *
- * Author: Marek Vasut <marek.vasut@gmail.com>
- */
-
-#include <linux/module.h>
-#include <linux/ucb1400.h>
-#include <linux/gpio/driver.h>
-
-static int ucb1400_gpio_dir_in(struct gpio_chip *gc, unsigned off)
-{
- struct ucb1400_gpio *gpio;
- gpio = gpiochip_get_data(gc);
- ucb1400_gpio_set_direction(gpio->ac97, off, 0);
- return 0;
-}
-
-static int ucb1400_gpio_dir_out(struct gpio_chip *gc, unsigned off, int val)
-{
- struct ucb1400_gpio *gpio;
- gpio = gpiochip_get_data(gc);
- ucb1400_gpio_set_direction(gpio->ac97, off, 1);
- ucb1400_gpio_set_value(gpio->ac97, off, val);
- return 0;
-}
-
-static int ucb1400_gpio_get(struct gpio_chip *gc, unsigned off)
-{
- struct ucb1400_gpio *gpio;
-
- gpio = gpiochip_get_data(gc);
- return !!ucb1400_gpio_get_value(gpio->ac97, off);
-}
-
-static void ucb1400_gpio_set(struct gpio_chip *gc, unsigned off, int val)
-{
- struct ucb1400_gpio *gpio;
- gpio = gpiochip_get_data(gc);
- ucb1400_gpio_set_value(gpio->ac97, off, val);
-}
-
-static int ucb1400_gpio_probe(struct platform_device *dev)
-{
- struct ucb1400_gpio *ucb = dev_get_platdata(&dev->dev);
- int err = 0;
-
- if (!(ucb && ucb->gpio_offset)) {
- err = -EINVAL;
- goto err;
- }
-
- platform_set_drvdata(dev, ucb);
-
- ucb->gc.label = "ucb1400_gpio";
- ucb->gc.base = ucb->gpio_offset;
- ucb->gc.ngpio = 10;
- ucb->gc.owner = THIS_MODULE;
-
- ucb->gc.direction_input = ucb1400_gpio_dir_in;
- ucb->gc.direction_output = ucb1400_gpio_dir_out;
- ucb->gc.get = ucb1400_gpio_get;
- ucb->gc.set = ucb1400_gpio_set;
- ucb->gc.can_sleep = true;
-
- err = devm_gpiochip_add_data(&dev->dev, &ucb->gc, ucb);
-
-err:
- return err;
-
-}
-
-static struct platform_driver ucb1400_gpio_driver = {
- .probe = ucb1400_gpio_probe,
- .driver = {
- .name = "ucb1400_gpio"
- },
-};
-
-module_platform_driver(ucb1400_gpio_driver);
-
-MODULE_DESCRIPTION("Philips UCB1400 GPIO driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:ucb1400_gpio");
To compile this driver as a module, choose M here: the
module will be called ti_am335x_tsc.
-config TOUCHSCREEN_UCB1400
- tristate "Philips UCB1400 touchscreen"
- depends on AC97_BUS
- depends on UCB1400_CORE
- help
- This enables support for the Philips UCB1400 touchscreen interface.
- The UCB1400 is an AC97 audio codec. The touchscreen interface
- will be initialized only after the ALSA subsystem has been
- brought up and the UCB1400 detected. You therefore have to
- configure ALSA support as well (either built-in or modular,
- independently of whether this driver is itself built-in or
- modular) for this driver to work.
-
- To compile this driver as a module, choose M here: the
- module will be called ucb1400_ts.
-
config TOUCHSCREEN_PIXCIR
tristate "PIXCIR I2C touchscreens"
depends on I2C
tsc2007-y := tsc2007_core.o
tsc2007-$(CONFIG_TOUCHSCREEN_TSC2007_IIO) += tsc2007_iio.o
obj-$(CONFIG_TOUCHSCREEN_TSC2007) += tsc2007.o
-obj-$(CONFIG_TOUCHSCREEN_UCB1400) += ucb1400_ts.o
obj-$(CONFIG_TOUCHSCREEN_WACOM_W8001) += wacom_w8001.o
obj-$(CONFIG_TOUCHSCREEN_WACOM_I2C) += wacom_i2c.o
obj-$(CONFIG_TOUCHSCREEN_WDT87XX_I2C) += wdt87xx_i2c.o
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Philips UCB1400 touchscreen driver
- *
- * Author: Nicolas Pitre
- * Created: September 25, 2006
- * Copyright: MontaVista Software, Inc.
- *
- * Spliting done by: Marek Vasut <marek.vasut@gmail.com>
- * If something doesn't work and it worked before spliting, e-mail me,
- * dont bother Nicolas please ;-)
- *
- * This code is heavily based on ucb1x00-*.c copyrighted by Russell King
- * covering the UCB1100, UCB1200 and UCB1300.. Support for the UCB1400 has
- * been made separate from ucb1x00-core/ucb1x00-ts on Russell's request.
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/sched.h>
-#include <linux/wait.h>
-#include <linux/input.h>
-#include <linux/device.h>
-#include <linux/interrupt.h>
-#include <linux/ucb1400.h>
-
-#define UCB1400_TS_POLL_PERIOD 10 /* ms */
-
-static bool adcsync;
-static int ts_delay = 55; /* us */
-static int ts_delay_pressure; /* us */
-
-/* Switch to interrupt mode. */
-static void ucb1400_ts_mode_int(struct ucb1400_ts *ucb)
-{
- ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
- UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW |
- UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND |
- UCB_TS_CR_MODE_INT);
-}
-
-/*
- * Switch to pressure mode, and read pressure. We don't need to wait
- * here, since both plates are being driven.
- */
-static unsigned int ucb1400_ts_read_pressure(struct ucb1400_ts *ucb)
-{
- ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
- UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW |
- UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND |
- UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
-
- udelay(ts_delay_pressure);
-
- return ucb1400_adc_read(ucb->ac97, UCB_ADC_INP_TSPY, adcsync);
-}
-
-/*
- * Switch to X position mode and measure Y plate. We switch the plate
- * configuration in pressure mode, then switch to position mode. This
- * gives a faster response time. Even so, we need to wait about 55us
- * for things to stabilise.
- */
-static unsigned int ucb1400_ts_read_xpos(struct ucb1400_ts *ucb)
-{
- ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
- UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
- UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
- ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
- UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
- UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
- ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
- UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
- UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA);
-
- udelay(ts_delay);
-
- return ucb1400_adc_read(ucb->ac97, UCB_ADC_INP_TSPY, adcsync);
-}
-
-/*
- * Switch to Y position mode and measure X plate. We switch the plate
- * configuration in pressure mode, then switch to position mode. This
- * gives a faster response time. Even so, we need to wait about 55us
- * for things to stabilise.
- */
-static int ucb1400_ts_read_ypos(struct ucb1400_ts *ucb)
-{
- ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
- UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
- UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
- ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
- UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
- UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
- ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
- UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
- UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA);
-
- udelay(ts_delay);
-
- return ucb1400_adc_read(ucb->ac97, UCB_ADC_INP_TSPX, adcsync);
-}
-
-/*
- * Switch to X plate resistance mode. Set MX to ground, PX to
- * supply. Measure current.
- */
-static unsigned int ucb1400_ts_read_xres(struct ucb1400_ts *ucb)
-{
- ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
- UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
- UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
- return ucb1400_adc_read(ucb->ac97, 0, adcsync);
-}
-
-/*
- * Switch to Y plate resistance mode. Set MY to ground, PY to
- * supply. Measure current.
- */
-static unsigned int ucb1400_ts_read_yres(struct ucb1400_ts *ucb)
-{
- ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
- UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
- UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
- return ucb1400_adc_read(ucb->ac97, 0, adcsync);
-}
-
-static int ucb1400_ts_pen_up(struct ucb1400_ts *ucb)
-{
- unsigned short val = ucb1400_reg_read(ucb->ac97, UCB_TS_CR);
-
- return val & (UCB_TS_CR_TSPX_LOW | UCB_TS_CR_TSMX_LOW);
-}
-
-static void ucb1400_ts_irq_enable(struct ucb1400_ts *ucb)
-{
- ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, UCB_IE_TSPX);
- ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0);
- ucb1400_reg_write(ucb->ac97, UCB_IE_FAL, UCB_IE_TSPX);
-}
-
-static void ucb1400_ts_irq_disable(struct ucb1400_ts *ucb)
-{
- ucb1400_reg_write(ucb->ac97, UCB_IE_FAL, 0);
-}
-
-static void ucb1400_ts_report_event(struct input_dev *idev, u16 pressure, u16 x, u16 y)
-{
- input_report_abs(idev, ABS_X, x);
- input_report_abs(idev, ABS_Y, y);
- input_report_abs(idev, ABS_PRESSURE, pressure);
- input_report_key(idev, BTN_TOUCH, 1);
- input_sync(idev);
-}
-
-static void ucb1400_ts_event_release(struct input_dev *idev)
-{
- input_report_abs(idev, ABS_PRESSURE, 0);
- input_report_key(idev, BTN_TOUCH, 0);
- input_sync(idev);
-}
-
-static void ucb1400_clear_pending_irq(struct ucb1400_ts *ucb)
-{
- unsigned int isr;
-
- isr = ucb1400_reg_read(ucb->ac97, UCB_IE_STATUS);
- ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, isr);
- ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0);
-
- if (isr & UCB_IE_TSPX)
- ucb1400_ts_irq_disable(ucb);
- else
- dev_dbg(&ucb->ts_idev->dev,
- "ucb1400: unexpected IE_STATUS = %#x\n", isr);
-}
-
-/*
- * A restriction with interrupts exists when using the ucb1400, as
- * the codec read/write routines may sleep while waiting for codec
- * access completion and uses semaphores for access control to the
- * AC97 bus. Therefore the driver is forced to use threaded interrupt
- * handler.
- */
-static irqreturn_t ucb1400_irq(int irqnr, void *devid)
-{
- struct ucb1400_ts *ucb = devid;
- unsigned int x, y, p;
-
- if (unlikely(irqnr != ucb->irq))
- return IRQ_NONE;
-
- ucb1400_clear_pending_irq(ucb);
-
- /* Start with a small delay before checking pendown state */
- msleep(UCB1400_TS_POLL_PERIOD);
-
- while (!ucb->stopped && !ucb1400_ts_pen_up(ucb)) {
- ucb1400_adc_enable(ucb->ac97);
- x = ucb1400_ts_read_xpos(ucb);
- y = ucb1400_ts_read_ypos(ucb);
- p = ucb1400_ts_read_pressure(ucb);
- ucb1400_adc_disable(ucb->ac97);
-
- ucb1400_ts_report_event(ucb->ts_idev, p, x, y);
-
- wait_event_timeout(ucb->ts_wait, ucb->stopped,
- msecs_to_jiffies(UCB1400_TS_POLL_PERIOD));
- }
-
- ucb1400_ts_event_release(ucb->ts_idev);
-
- if (!ucb->stopped) {
- /* Switch back to interrupt mode. */
- ucb1400_ts_mode_int(ucb);
- ucb1400_ts_irq_enable(ucb);
- }
-
- return IRQ_HANDLED;
-}
-
-static void ucb1400_ts_stop(struct ucb1400_ts *ucb)
-{
- /* Signal IRQ thread to stop polling and disable the handler. */
- ucb->stopped = true;
- mb();
- wake_up(&ucb->ts_wait);
- disable_irq(ucb->irq);
-
- ucb1400_ts_irq_disable(ucb);
- ucb1400_reg_write(ucb->ac97, UCB_TS_CR, 0);
-}
-
-/* Must be called with ts->lock held */
-static void ucb1400_ts_start(struct ucb1400_ts *ucb)
-{
- /* Tell IRQ thread that it may poll the device. */
- ucb->stopped = false;
- mb();
-
- ucb1400_ts_mode_int(ucb);
- ucb1400_ts_irq_enable(ucb);
-
- enable_irq(ucb->irq);
-}
-
-static int ucb1400_ts_open(struct input_dev *idev)
-{
- struct ucb1400_ts *ucb = input_get_drvdata(idev);
-
- ucb1400_ts_start(ucb);
-
- return 0;
-}
-
-static void ucb1400_ts_close(struct input_dev *idev)
-{
- struct ucb1400_ts *ucb = input_get_drvdata(idev);
-
- ucb1400_ts_stop(ucb);
-}
-
-#ifndef NO_IRQ
-#define NO_IRQ 0
-#endif
-
-/*
- * Try to probe our interrupt, rather than relying on lots of
- * hard-coded machine dependencies.
- */
-static int ucb1400_ts_detect_irq(struct ucb1400_ts *ucb,
- struct platform_device *pdev)
-{
- unsigned long mask, timeout;
-
- mask = probe_irq_on();
-
- /* Enable the ADC interrupt. */
- ucb1400_reg_write(ucb->ac97, UCB_IE_RIS, UCB_IE_ADC);
- ucb1400_reg_write(ucb->ac97, UCB_IE_FAL, UCB_IE_ADC);
- ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0xffff);
- ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0);
-
- /* Cause an ADC interrupt. */
- ucb1400_reg_write(ucb->ac97, UCB_ADC_CR, UCB_ADC_ENA);
- ucb1400_reg_write(ucb->ac97, UCB_ADC_CR, UCB_ADC_ENA | UCB_ADC_START);
-
- /* Wait for the conversion to complete. */
- timeout = jiffies + HZ/2;
- while (!(ucb1400_reg_read(ucb->ac97, UCB_ADC_DATA) &
- UCB_ADC_DAT_VALID)) {
- cpu_relax();
- if (time_after(jiffies, timeout)) {
- dev_err(&pdev->dev, "timed out in IRQ probe\n");
- probe_irq_off(mask);
- return -ENODEV;
- }
- }
- ucb1400_reg_write(ucb->ac97, UCB_ADC_CR, 0);
-
- /* Disable and clear interrupt. */
- ucb1400_reg_write(ucb->ac97, UCB_IE_RIS, 0);
- ucb1400_reg_write(ucb->ac97, UCB_IE_FAL, 0);
- ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0xffff);
- ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0);
-
- /* Read triggered interrupt. */
- ucb->irq = probe_irq_off(mask);
- if (ucb->irq < 0 || ucb->irq == NO_IRQ)
- return -ENODEV;
-
- return 0;
-}
-
-static int ucb1400_ts_probe(struct platform_device *pdev)
-{
- struct ucb1400_ts *ucb = dev_get_platdata(&pdev->dev);
- int error, x_res, y_res;
- u16 fcsr;
-
- ucb->ts_idev = input_allocate_device();
- if (!ucb->ts_idev) {
- error = -ENOMEM;
- goto err;
- }
-
- /* Only in case the IRQ line wasn't supplied, try detecting it */
- if (ucb->irq < 0) {
- error = ucb1400_ts_detect_irq(ucb, pdev);
- if (error) {
- dev_err(&pdev->dev, "IRQ probe failed\n");
- goto err_free_devs;
- }
- }
- dev_dbg(&pdev->dev, "found IRQ %d\n", ucb->irq);
-
- init_waitqueue_head(&ucb->ts_wait);
-
- input_set_drvdata(ucb->ts_idev, ucb);
-
- ucb->ts_idev->dev.parent = &pdev->dev;
- ucb->ts_idev->name = "UCB1400 touchscreen interface";
- ucb->ts_idev->id.vendor = ucb1400_reg_read(ucb->ac97,
- AC97_VENDOR_ID1);
- ucb->ts_idev->id.product = ucb->id;
- ucb->ts_idev->open = ucb1400_ts_open;
- ucb->ts_idev->close = ucb1400_ts_close;
- ucb->ts_idev->evbit[0] = BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY);
- ucb->ts_idev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
-
- /*
- * Enable ADC filter to prevent horrible jitter on Colibri.
- * This also further reduces jitter on boards where ADCSYNC
- * pin is connected.
- */
- fcsr = ucb1400_reg_read(ucb->ac97, UCB_FCSR);
- ucb1400_reg_write(ucb->ac97, UCB_FCSR, fcsr | UCB_FCSR_AVE);
-
- ucb1400_adc_enable(ucb->ac97);
- x_res = ucb1400_ts_read_xres(ucb);
- y_res = ucb1400_ts_read_yres(ucb);
- ucb1400_adc_disable(ucb->ac97);
- dev_dbg(&pdev->dev, "x/y = %d/%d\n", x_res, y_res);
-
- input_set_abs_params(ucb->ts_idev, ABS_X, 0, x_res, 0, 0);
- input_set_abs_params(ucb->ts_idev, ABS_Y, 0, y_res, 0, 0);
- input_set_abs_params(ucb->ts_idev, ABS_PRESSURE, 0, 0, 0, 0);
-
- ucb1400_ts_stop(ucb);
-
- error = request_threaded_irq(ucb->irq, NULL, ucb1400_irq,
- IRQF_TRIGGER_RISING | IRQF_ONESHOT,
- "UCB1400", ucb);
- if (error) {
- dev_err(&pdev->dev,
- "unable to grab irq%d: %d\n", ucb->irq, error);
- goto err_free_devs;
- }
-
- error = input_register_device(ucb->ts_idev);
- if (error)
- goto err_free_irq;
-
- return 0;
-
-err_free_irq:
- free_irq(ucb->irq, ucb);
-err_free_devs:
- input_free_device(ucb->ts_idev);
-err:
- return error;
-}
-
-static int ucb1400_ts_remove(struct platform_device *pdev)
-{
- struct ucb1400_ts *ucb = dev_get_platdata(&pdev->dev);
-
- free_irq(ucb->irq, ucb);
- input_unregister_device(ucb->ts_idev);
-
- return 0;
-}
-
-static int __maybe_unused ucb1400_ts_suspend(struct device *dev)
-{
- struct ucb1400_ts *ucb = dev_get_platdata(dev);
- struct input_dev *idev = ucb->ts_idev;
-
- mutex_lock(&idev->mutex);
-
- if (input_device_enabled(idev))
- ucb1400_ts_stop(ucb);
-
- mutex_unlock(&idev->mutex);
- return 0;
-}
-
-static int __maybe_unused ucb1400_ts_resume(struct device *dev)
-{
- struct ucb1400_ts *ucb = dev_get_platdata(dev);
- struct input_dev *idev = ucb->ts_idev;
-
- mutex_lock(&idev->mutex);
-
- if (input_device_enabled(idev))
- ucb1400_ts_start(ucb);
-
- mutex_unlock(&idev->mutex);
- return 0;
-}
-
-static SIMPLE_DEV_PM_OPS(ucb1400_ts_pm_ops,
- ucb1400_ts_suspend, ucb1400_ts_resume);
-
-static struct platform_driver ucb1400_ts_driver = {
- .probe = ucb1400_ts_probe,
- .remove = ucb1400_ts_remove,
- .driver = {
- .name = "ucb1400_ts",
- .pm = &ucb1400_ts_pm_ops,
- },
-};
-module_platform_driver(ucb1400_ts_driver);
-
-module_param(adcsync, bool, 0444);
-MODULE_PARM_DESC(adcsync, "Synchronize touch readings with ADCSYNC pin.");
-
-module_param(ts_delay, int, 0444);
-MODULE_PARM_DESC(ts_delay, "Delay between panel setup and"
- " position read. Default = 55us.");
-
-module_param(ts_delay_pressure, int, 0444);
-MODULE_PARM_DESC(ts_delay_pressure,
- "delay between panel setup and pressure read."
- " Default = 0us.");
-
-MODULE_DESCRIPTION("Philips UCB1400 touchscreen driver");
-MODULE_LICENSE("GPL");
Say yes here if you want to include support GPIO for pins on
the PCF50633 chip.
-config UCB1400_CORE
- tristate "Philips UCB1400 Core driver"
- depends on AC97_BUS
- depends on GPIOLIB
- help
- This enables support for the Philips UCB1400 core functions.
- The UCB1400 is an AC97 audio codec.
-
- To compile this driver as a module, choose M here: the
- module will be called ucb1400_core.
-
config MFD_PM8XXX
tristate "Qualcomm PM8xxx PMIC chips driver"
depends on (ARM || HEXAGON || COMPILE_TEST)
ifeq ($(CONFIG_SA1100_ASSABET),y)
obj-$(CONFIG_MCP_UCB1200) += ucb1x00-assabet.o
endif
-obj-$(CONFIG_UCB1400_CORE) += ucb1400_core.o
obj-$(CONFIG_PMIC_DA903X) += da903x.o
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Core functions for:
- * Philips UCB1400 multifunction chip
- *
- * Based on ucb1400_ts.c:
- * Author: Nicolas Pitre
- * Created: September 25, 2006
- * Copyright: MontaVista Software, Inc.
- *
- * Spliting done by: Marek Vasut <marek.vasut@gmail.com>
- * If something doesn't work and it worked before spliting, e-mail me,
- * dont bother Nicolas please ;-)
- *
- * This code is heavily based on ucb1x00-*.c copyrighted by Russell King
- * covering the UCB1100, UCB1200 and UCB1300.. Support for the UCB1400 has
- * been made separate from ucb1x00-core/ucb1x00-ts on Russell's request.
- */
-
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/ucb1400.h>
-
-unsigned int ucb1400_adc_read(struct snd_ac97 *ac97, u16 adc_channel,
- int adcsync)
-{
- unsigned int val;
-
- if (adcsync)
- adc_channel |= UCB_ADC_SYNC_ENA;
-
- ucb1400_reg_write(ac97, UCB_ADC_CR, UCB_ADC_ENA | adc_channel);
- ucb1400_reg_write(ac97, UCB_ADC_CR, UCB_ADC_ENA | adc_channel |
- UCB_ADC_START);
-
- while (!((val = ucb1400_reg_read(ac97, UCB_ADC_DATA))
- & UCB_ADC_DAT_VALID))
- schedule_timeout_uninterruptible(1);
-
- return val & UCB_ADC_DAT_MASK;
-}
-EXPORT_SYMBOL_GPL(ucb1400_adc_read);
-
-static int ucb1400_core_probe(struct device *dev)
-{
- int err;
- struct ucb1400 *ucb;
- struct ucb1400_ts ucb_ts;
- struct ucb1400_gpio ucb_gpio;
- struct snd_ac97 *ac97;
- struct ucb1400_pdata *pdata = dev_get_platdata(dev);
-
- memset(&ucb_ts, 0, sizeof(ucb_ts));
- memset(&ucb_gpio, 0, sizeof(ucb_gpio));
-
- ucb = kzalloc(sizeof(struct ucb1400), GFP_KERNEL);
- if (!ucb) {
- err = -ENOMEM;
- goto err;
- }
-
- dev_set_drvdata(dev, ucb);
-
- ac97 = to_ac97_t(dev);
-
- ucb_ts.id = ucb1400_reg_read(ac97, UCB_ID);
- if (ucb_ts.id != UCB_ID_1400) {
- err = -ENODEV;
- goto err0;
- }
-
- /* GPIO */
- ucb_gpio.ac97 = ac97;
- if (pdata)
- ucb_gpio.gpio_offset = pdata->gpio_offset;
-
- ucb->ucb1400_gpio = platform_device_alloc("ucb1400_gpio", -1);
- if (!ucb->ucb1400_gpio) {
- err = -ENOMEM;
- goto err0;
- }
- err = platform_device_add_data(ucb->ucb1400_gpio, &ucb_gpio,
- sizeof(ucb_gpio));
- if (err)
- goto err1;
- err = platform_device_add(ucb->ucb1400_gpio);
- if (err)
- goto err1;
-
- /* TOUCHSCREEN */
- ucb_ts.ac97 = ac97;
-
- if (pdata != NULL && pdata->irq >= 0)
- ucb_ts.irq = pdata->irq;
- else
- ucb_ts.irq = -1;
-
- ucb->ucb1400_ts = platform_device_alloc("ucb1400_ts", -1);
- if (!ucb->ucb1400_ts) {
- err = -ENOMEM;
- goto err2;
- }
- err = platform_device_add_data(ucb->ucb1400_ts, &ucb_ts,
- sizeof(ucb_ts));
- if (err)
- goto err3;
- err = platform_device_add(ucb->ucb1400_ts);
- if (err)
- goto err3;
-
- return 0;
-
-err3:
- platform_device_put(ucb->ucb1400_ts);
-err2:
- platform_device_del(ucb->ucb1400_gpio);
-err1:
- platform_device_put(ucb->ucb1400_gpio);
-err0:
- kfree(ucb);
-err:
- return err;
-}
-
-static int ucb1400_core_remove(struct device *dev)
-{
- struct ucb1400 *ucb = dev_get_drvdata(dev);
-
- platform_device_unregister(ucb->ucb1400_ts);
- platform_device_unregister(ucb->ucb1400_gpio);
-
- kfree(ucb);
- return 0;
-}
-
-static struct device_driver ucb1400_core_driver = {
- .name = "ucb1400_core",
- .bus = &ac97_bus_type,
- .probe = ucb1400_core_probe,
- .remove = ucb1400_core_remove,
-};
-
-static int __init ucb1400_core_init(void)
-{
- return driver_register(&ucb1400_core_driver);
-}
-
-static void __exit ucb1400_core_exit(void)
-{
- driver_unregister(&ucb1400_core_driver);
-}
-
-module_init(ucb1400_core_init);
-module_exit(ucb1400_core_exit);
-
-MODULE_DESCRIPTION("Philips UCB1400 driver");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Register definitions and functions for:
- * Philips UCB1400 driver
- *
- * Based on ucb1400_ts:
- * Author: Nicolas Pitre
- * Created: September 25, 2006
- * Copyright: MontaVista Software, Inc.
- *
- * Spliting done by: Marek Vasut <marek.vasut@gmail.com>
- * If something doesn't work and it worked before spliting, e-mail me,
- * dont bother Nicolas please ;-)
- *
- * This code is heavily based on ucb1x00-*.c copyrighted by Russell King
- * covering the UCB1100, UCB1200 and UCB1300.. Support for the UCB1400 has
- * been made separate from ucb1x00-core/ucb1x00-ts on Russell's request.
- */
-
-#ifndef _LINUX__UCB1400_H
-#define _LINUX__UCB1400_H
-
-#include <sound/ac97_codec.h>
-#include <linux/mutex.h>
-#include <linux/platform_device.h>
-#include <linux/gpio/driver.h>
-
-/*
- * UCB1400 AC-link registers
- */
-
-#define UCB_IO_DATA 0x5a
-#define UCB_IO_DIR 0x5c
-#define UCB_IE_RIS 0x5e
-#define UCB_IE_FAL 0x60
-#define UCB_IE_STATUS 0x62
-#define UCB_IE_CLEAR 0x62
-#define UCB_IE_ADC (1 << 11)
-#define UCB_IE_TSPX (1 << 12)
-
-#define UCB_TS_CR 0x64
-#define UCB_TS_CR_TSMX_POW (1 << 0)
-#define UCB_TS_CR_TSPX_POW (1 << 1)
-#define UCB_TS_CR_TSMY_POW (1 << 2)
-#define UCB_TS_CR_TSPY_POW (1 << 3)
-#define UCB_TS_CR_TSMX_GND (1 << 4)
-#define UCB_TS_CR_TSPX_GND (1 << 5)
-#define UCB_TS_CR_TSMY_GND (1 << 6)
-#define UCB_TS_CR_TSPY_GND (1 << 7)
-#define UCB_TS_CR_MODE_INT (0 << 8)
-#define UCB_TS_CR_MODE_PRES (1 << 8)
-#define UCB_TS_CR_MODE_POS (2 << 8)
-#define UCB_TS_CR_BIAS_ENA (1 << 11)
-#define UCB_TS_CR_TSPX_LOW (1 << 12)
-#define UCB_TS_CR_TSMX_LOW (1 << 13)
-
-#define UCB_ADC_CR 0x66
-#define UCB_ADC_SYNC_ENA (1 << 0)
-#define UCB_ADC_VREFBYP_CON (1 << 1)
-#define UCB_ADC_INP_TSPX (0 << 2)
-#define UCB_ADC_INP_TSMX (1 << 2)
-#define UCB_ADC_INP_TSPY (2 << 2)
-#define UCB_ADC_INP_TSMY (3 << 2)
-#define UCB_ADC_INP_AD0 (4 << 2)
-#define UCB_ADC_INP_AD1 (5 << 2)
-#define UCB_ADC_INP_AD2 (6 << 2)
-#define UCB_ADC_INP_AD3 (7 << 2)
-#define UCB_ADC_EXT_REF (1 << 5)
-#define UCB_ADC_START (1 << 7)
-#define UCB_ADC_ENA (1 << 15)
-
-#define UCB_ADC_DATA 0x68
-#define UCB_ADC_DAT_VALID (1 << 15)
-
-#define UCB_FCSR 0x6c
-#define UCB_FCSR_AVE (1 << 12)
-
-#define UCB_ADC_DAT_MASK 0x3ff
-
-#define UCB_ID 0x7e
-#define UCB_ID_1400 0x4304
-
-struct ucb1400_gpio {
- struct gpio_chip gc;
- struct snd_ac97 *ac97;
- int gpio_offset;
-};
-
-struct ucb1400_ts {
- struct input_dev *ts_idev;
- int id;
- int irq;
- struct snd_ac97 *ac97;
- wait_queue_head_t ts_wait;
- bool stopped;
-};
-
-struct ucb1400 {
- struct platform_device *ucb1400_ts;
- struct platform_device *ucb1400_gpio;
-};
-
-struct ucb1400_pdata {
- int irq;
- int gpio_offset;
- int (*gpio_setup)(struct device *dev, int ngpio);
- int (*gpio_teardown)(struct device *dev, int ngpio);
-};
-
-static inline u16 ucb1400_reg_read(struct snd_ac97 *ac97, u16 reg)
-{
- return ac97->bus->ops->read(ac97, reg);
-}
-
-static inline void ucb1400_reg_write(struct snd_ac97 *ac97, u16 reg, u16 val)
-{
- ac97->bus->ops->write(ac97, reg, val);
-}
-
-static inline u16 ucb1400_gpio_get_value(struct snd_ac97 *ac97, u16 gpio)
-{
- return ucb1400_reg_read(ac97, UCB_IO_DATA) & (1 << gpio);
-}
-
-static inline void ucb1400_gpio_set_value(struct snd_ac97 *ac97, u16 gpio,
- u16 val)
-{
- ucb1400_reg_write(ac97, UCB_IO_DATA, val ?
- ucb1400_reg_read(ac97, UCB_IO_DATA) | (1 << gpio) :
- ucb1400_reg_read(ac97, UCB_IO_DATA) & ~(1 << gpio));
-}
-
-static inline u16 ucb1400_gpio_get_direction(struct snd_ac97 *ac97, u16 gpio)
-{
- return ucb1400_reg_read(ac97, UCB_IO_DIR) & (1 << gpio);
-}
-
-static inline void ucb1400_gpio_set_direction(struct snd_ac97 *ac97, u16 gpio,
- u16 dir)
-{
- ucb1400_reg_write(ac97, UCB_IO_DIR, dir ?
- ucb1400_reg_read(ac97, UCB_IO_DIR) | (1 << gpio) :
- ucb1400_reg_read(ac97, UCB_IO_DIR) & ~(1 << gpio));
-}
-
-static inline void ucb1400_adc_enable(struct snd_ac97 *ac97)
-{
- ucb1400_reg_write(ac97, UCB_ADC_CR, UCB_ADC_ENA);
-}
-
-static inline void ucb1400_adc_disable(struct snd_ac97 *ac97)
-{
- ucb1400_reg_write(ac97, UCB_ADC_CR, 0);
-}
-
-
-unsigned int ucb1400_adc_read(struct snd_ac97 *ac97, u16 adc_channel,
- int adcsync);
-
-#endif
endif # SOUND
-# AC97_BUS is used from both sound and ucb1400
config AC97_BUS
tristate
help
{ 0x4e534300, 0xffffffff, "LM4540,43,45,46,48", NULL, NULL }, // only guess --jk
{ 0x4e534331, 0xffffffff, "LM4549", NULL, NULL },
{ 0x4e534350, 0xffffffff, "LM4550", patch_lm4550, NULL }, // volume wrap fix
-{ 0x50534304, 0xffffffff, "UCB1400", patch_ucb1400, NULL },
{ 0x53494c20, 0xffffffe0, "Si3036,8", mpatch_si3036, mpatch_si3036, AC97_MODEM_PATCH },
{ 0x53544d02, 0xffffffff, "ST7597", NULL, NULL },
{ 0x54524102, 0xffffffff, "TR28022", NULL, NULL },
ac97->res_table = lm4550_restbl;
return 0;
}
-
-/*
- * UCB1400 codec (http://www.semiconductors.philips.com/acrobat_download/datasheets/UCB1400-02.pdf)
- */
-static const struct snd_kcontrol_new snd_ac97_controls_ucb1400[] = {
-/* enable/disable headphone driver which allows direct connection to
- stereo headphone without the use of external DC blocking
- capacitors */
-AC97_SINGLE("Headphone Driver", 0x6a, 6, 1, 0),
-/* Filter used to compensate the DC offset is added in the ADC to remove idle
- tones from the audio band. */
-AC97_SINGLE("DC Filter", 0x6a, 4, 1, 0),
-/* Control smart-low-power mode feature. Allows automatic power down
- of unused blocks in the ADC analog front end and the PLL. */
-AC97_SINGLE("Smart Low Power Mode", 0x6c, 4, 3, 0),
-};
-
-static int patch_ucb1400_specific(struct snd_ac97 * ac97)
-{
- int idx, err;
- for (idx = 0; idx < ARRAY_SIZE(snd_ac97_controls_ucb1400); idx++) {
- err = snd_ctl_add(ac97->bus->card, snd_ctl_new1(&snd_ac97_controls_ucb1400[idx], ac97));
- if (err < 0)
- return err;
- }
- return 0;
-}
-
-static const struct snd_ac97_build_ops patch_ucb1400_ops = {
- .build_specific = patch_ucb1400_specific,
-};
-
-static int patch_ucb1400(struct snd_ac97 * ac97)
-{
- ac97->build_ops = &patch_ucb1400_ops;
- /* enable headphone driver and smart low power mode by default */
- snd_ac97_write_cache(ac97, 0x6a, 0x0050);
- snd_ac97_write_cache(ac97, 0x6c, 0x0030);
- return 0;
-}
projects / platform / kernel / linux-starfive.git / commitdiff