diff options
| -rw-r--r-- | drivers/input/touchscreen/Kconfig | 14 | ||||
| -rw-r--r-- | drivers/input/touchscreen/Makefile | 1 | ||||
| -rw-r--r-- | drivers/input/touchscreen/zylonite-wm97xx.c | 220 |
3 files changed, 0 insertions, 235 deletions
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 5abb45ea1b1b..ca00f55eaf45 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -928,20 +928,6 @@ config TOUCHSCREEN_WM97XX_MAINSTONE To compile this driver as a module, choose M here: the module will be called mainstone-wm97xx. -config TOUCHSCREEN_WM97XX_ZYLONITE - tristate "Zylonite accelerated touch" - depends on TOUCHSCREEN_WM97XX && MACH_ZYLONITE - depends on SND_PXA2XX_LIB_AC97 - select TOUCHSCREEN_WM9713 - help - Say Y here for support for streaming mode with the touchscreen - on Zylonite systems. - - If unsure, say N. - - To compile this driver as a module, choose M here: the - module will be called zylonite-wm97xx. - config TOUCHSCREEN_USB_COMPOSITE tristate "USB Touchscreen Driver" depends on USB_ARCH_HAS_HCD diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index 3bc2a47c489c..7053fede594e 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -107,7 +107,6 @@ wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9705) += wm9705.o wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9712) += wm9712.o wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9713) += wm9713.o obj-$(CONFIG_TOUCHSCREEN_WM97XX_MAINSTONE) += mainstone-wm97xx.o -obj-$(CONFIG_TOUCHSCREEN_WM97XX_ZYLONITE) += zylonite-wm97xx.o obj-$(CONFIG_TOUCHSCREEN_SX8654) += sx8654.o obj-$(CONFIG_TOUCHSCREEN_TPS6507X) += tps6507x-ts.o obj-$(CONFIG_TOUCHSCREEN_ZET6223) += zet6223.o diff --git a/drivers/input/touchscreen/zylonite-wm97xx.c b/drivers/input/touchscreen/zylonite-wm97xx.c deleted file mode 100644 index a70fe4abe520..000000000000 --- a/drivers/input/touchscreen/zylonite-wm97xx.c +++ /dev/null @@ -1,220 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * zylonite-wm97xx.c -- Zylonite Continuous Touch screen driver - * - * Copyright 2004, 2007, 2008 Wolfson Microelectronics PLC. - * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> - * Parts Copyright : Ian Molton <spyro@f2s.com> - * Andrew Zabolotny <zap@homelink.ru> - * - * Notes: - * This is a wm97xx extended touch driver supporting interrupt driven - * and continuous operation on Marvell Zylonite development systems - * (which have a WM9713 on board). - */ - -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/gpio/consumer.h> -#include <linux/irq.h> -#include <linux/interrupt.h> -#include <linux/io.h> -#include <linux/soc/pxa/cpu.h> -#include <linux/wm97xx.h> - -#include <sound/pxa2xx-lib.h> - -struct continuous { - u16 id; /* codec id */ - u8 code; /* continuous code */ - u8 reads; /* number of coord reads per read cycle */ - u32 speed; /* number of coords per second */ -}; - -#define WM_READS(sp) ((sp / HZ) + 1) - -static const struct continuous cinfo[] = { - { WM9713_ID2, 0, WM_READS(94), 94 }, - { WM9713_ID2, 1, WM_READS(120), 120 }, - { WM9713_ID2, 2, WM_READS(154), 154 }, - { WM9713_ID2, 3, WM_READS(188), 188 }, -}; - -/* continuous speed index */ -static int sp_idx; - -/* - * Pen sampling frequency (Hz) in continuous mode. - */ -static int cont_rate = 200; -module_param(cont_rate, int, 0); -MODULE_PARM_DESC(cont_rate, "Sampling rate in continuous mode (Hz)"); - -/* - * Pressure readback. - * - * Set to 1 to read back pen down pressure - */ -static int pressure; -module_param(pressure, int, 0); -MODULE_PARM_DESC(pressure, "Pressure readback (1 = pressure, 0 = no pressure)"); - -/* - * AC97 touch data slot. - * - * Touch screen readback data ac97 slot - */ -static int ac97_touch_slot = 5; -module_param(ac97_touch_slot, int, 0); -MODULE_PARM_DESC(ac97_touch_slot, "Touch screen data slot AC97 number"); - - -/* flush AC97 slot 5 FIFO machines */ -static void wm97xx_acc_pen_up(struct wm97xx *wm) -{ - int i; - - msleep(1); - - for (i = 0; i < 16; i++) - pxa2xx_ac97_read_modr(); -} - -static int wm97xx_acc_pen_down(struct wm97xx *wm) -{ - u16 x, y, p = 0x100 | WM97XX_ADCSEL_PRES; - int reads = 0; - static u16 last, tries; - - /* When the AC97 queue has been drained we need to allow time - * to buffer up samples otherwise we end up spinning polling - * for samples. The controller can't have a suitably low - * threshold set to use the notifications it gives. - */ - msleep(1); - - if (tries > 5) { - tries = 0; - return RC_PENUP; - } - - x = pxa2xx_ac97_read_modr(); - if (x == last) { - tries++; - return RC_AGAIN; - } - last = x; - do { - if (reads) - x = pxa2xx_ac97_read_modr(); - y = pxa2xx_ac97_read_modr(); - if (pressure) - p = pxa2xx_ac97_read_modr(); - - dev_dbg(wm->dev, "Raw coordinates: x=%x, y=%x, p=%x\n", - x, y, p); - - /* are samples valid */ - if ((x & WM97XX_ADCSEL_MASK) != WM97XX_ADCSEL_X || - (y & WM97XX_ADCSEL_MASK) != WM97XX_ADCSEL_Y || - (p & WM97XX_ADCSEL_MASK) != WM97XX_ADCSEL_PRES) - goto up; - - /* coordinate is good */ - tries = 0; - input_report_abs(wm->input_dev, ABS_X, x & 0xfff); - input_report_abs(wm->input_dev, ABS_Y, y & 0xfff); - input_report_abs(wm->input_dev, ABS_PRESSURE, p & 0xfff); - input_report_key(wm->input_dev, BTN_TOUCH, (p != 0)); - input_sync(wm->input_dev); - reads++; - } while (reads < cinfo[sp_idx].reads); -up: - return RC_PENDOWN | RC_AGAIN; -} - -static int wm97xx_acc_startup(struct wm97xx *wm) -{ - int idx; - - /* check we have a codec */ - if (wm->ac97 == NULL) - return -ENODEV; - - /* Go you big red fire engine */ - for (idx = 0; idx < ARRAY_SIZE(cinfo); idx++) { - if (wm->id != cinfo[idx].id) - continue; - sp_idx = idx; - if (cont_rate <= cinfo[idx].speed) - break; - } - wm->acc_rate = cinfo[sp_idx].code; - wm->acc_slot = ac97_touch_slot; - dev_info(wm->dev, - "zylonite accelerated touchscreen driver, %d samples/sec\n", - cinfo[sp_idx].speed); - - return 0; -} - -static struct wm97xx_mach_ops zylonite_mach_ops = { - .acc_enabled = 1, - .acc_pen_up = wm97xx_acc_pen_up, - .acc_pen_down = wm97xx_acc_pen_down, - .acc_startup = wm97xx_acc_startup, - .irq_gpio = WM97XX_GPIO_2, -}; - -static int zylonite_wm97xx_probe(struct platform_device *pdev) -{ - struct wm97xx *wm = platform_get_drvdata(pdev); - struct gpio_desc *gpio_touch_irq; - int err; - - gpio_touch_irq = devm_gpiod_get(&pdev->dev, "touch", GPIOD_IN); - err = PTR_ERR_OR_ZERO(gpio_touch_irq); - if (err) { - dev_err(&pdev->dev, "Cannot get irq gpio: %d\n", err); - return err; - } - - wm->pen_irq = gpiod_to_irq(gpio_touch_irq); - irq_set_irq_type(wm->pen_irq, IRQ_TYPE_EDGE_BOTH); - - wm97xx_config_gpio(wm, WM97XX_GPIO_13, WM97XX_GPIO_IN, - WM97XX_GPIO_POL_HIGH, - WM97XX_GPIO_STICKY, - WM97XX_GPIO_WAKE); - wm97xx_config_gpio(wm, WM97XX_GPIO_2, WM97XX_GPIO_OUT, - WM97XX_GPIO_POL_HIGH, - WM97XX_GPIO_NOTSTICKY, - WM97XX_GPIO_NOWAKE); - - return wm97xx_register_mach_ops(wm, &zylonite_mach_ops); -} - -static int zylonite_wm97xx_remove(struct platform_device *pdev) -{ - struct wm97xx *wm = platform_get_drvdata(pdev); - - wm97xx_unregister_mach_ops(wm); - - return 0; -} - -static struct platform_driver zylonite_wm97xx_driver = { - .probe = zylonite_wm97xx_probe, - .remove = zylonite_wm97xx_remove, - .driver = { - .name = "wm97xx-touch", - }, -}; -module_platform_driver(zylonite_wm97xx_driver); - -/* Module information */ -MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); -MODULE_DESCRIPTION("wm97xx continuous touch driver for Zylonite"); -MODULE_LICENSE("GPL"); |