diff options
Diffstat (limited to 'packages/linux/linux-rp-2.6.23/tosa-lcdnoise-r1.patch')
| -rw-r--r-- | packages/linux/linux-rp-2.6.23/tosa-lcdnoise-r1.patch | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/packages/linux/linux-rp-2.6.23/tosa-lcdnoise-r1.patch b/packages/linux/linux-rp-2.6.23/tosa-lcdnoise-r1.patch index 910b727b82..21f3cf66b1 100644 --- a/packages/linux/linux-rp-2.6.23/tosa-lcdnoise-r1.patch +++ b/packages/linux/linux-rp-2.6.23/tosa-lcdnoise-r1.patch @@ -156,161 +156,3 @@ index 0000000..bc733e9 -- 1.4.4.4 -From 564b757ba44b517ac6d693b94a177708bb5d3887 Mon Sep 17 00:00:00 2001 -From: Dmitry Baryshkov <dbaryshkov@gmail.com> -Date: Fri, 19 Oct 2007 17:30:30 +0400 -Subject: [PATCH] tosa-lcdnoise-r1.patch - ---- - drivers/input/touchscreen/Kconfig | 13 +++++ - drivers/input/touchscreen/Makefile | 1 + - drivers/input/touchscreen/tosa_ts.c | 102 +++++++++++++++++++++++++++++++++++ - 3 files changed, 116 insertions(+), 0 deletions(-) - -diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig -index 3ac01b4..6862e8f 100644 ---- a/drivers/input/touchscreen/Kconfig -+++ b/drivers/input/touchscreen/Kconfig -@@ -219,6 +219,19 @@ config TOUCHSCREEN_USB_DMC_TSC10 - bool "DMC TSC-10/25 device support" if EMBEDDED - depends on TOUCHSCREEN_USB_COMPOSITE - -+config TOUCHSCREEN_TOSA -+ tristate "Sharp Tosa touchscreen driver" -+ depends on TOUCHSCREEN_WM97XX && MACH_TOSA -+ default n -+ help -+ Say Y here to enable the driver for the touchscreen on the -+ Sharp Tosa PDA. -+ depends on TOUCHSCREEN_WM97XX && MACH_TOSA -+ If unsure, say N. -+ -+ To compile this driver as a module, choose M here: the -+ module will be called tosa_ts. -+ - config TOUCHSCREEN_TSC2101 - tristate "TI TSC2101 touchscreen input driver" - depends on MACH_HX2750 && INPUT && INPUT_TOUCHSCREEN -diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile -index f64d1a5..4fc0e17 100644 ---- a/drivers/input/touchscreen/Makefile -+++ b/drivers/input/touchscreen/Makefile -@@ -22,6 +22,7 @@ obj-$(CONFIG_TOUCHSCREEN_UCB1400) += ucb1400_ts.o - obj-$(CONFIG_TOUCHSCREEN_TSC2101) += tsc2101_ts.o - obj-$(CONFIG_TOUCHSCREEN_WM97XX) += wm97xx-ts.o - obj-$(CONFIG_TOUCHSCREEN_WM97XX_PXA) += pxa-wm97xx.o -+obj-$(CONFIG_TOUCHSCREEN_TOSA) += tosa_ts.o - - ifeq ($(CONFIG_TOUCHSCREEN_WM9713),y) - wm97xx-ts-objs += wm9713.o -diff --git a/drivers/input/touchscreen/tosa_ts.c b/drivers/input/touchscreen/tosa_ts.c -new file mode 100644 -index 0000000..bc733e9 ---- /dev/null -+++ b/drivers/input/touchscreen/tosa_ts.c -@@ -0,0 +1,102 @@ -+/* -+ * tosa_ts.c -- Touchscreen driver for Sharp SL-6000 (Tosa). -+ * -+ * Copyright 2006 Wolfson Microelectronics PLC. -+ * Author: Mike Arthur -+ * linux@wolfsonmicro.com -+ * -+ * 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; either version 2 of the License, or (at your -+ * option) any later version. -+ * -+ * Revision history -+ * 1st Sep 2006 Initial version. -+ * -+ */ -+ -+#include <linux/wm97xx.h> -+#include <asm/arch/tosa.h> -+#include <asm/arch/hardware.h> -+#include <asm/arch/pxa-regs.h> -+ -+/* Taken from the Sharp 2.4 kernel code */ -+#define CCNT(a) asm volatile ("mrc p14, 0, %0, C1, C1, 0" : "=r"(a)) -+#define CCNT_ON() asm("mcr p14, 0, %0, C0, C0, 0" : : "r"(1)) -+#define CCNT_OFF() asm("mcr p14, 0, %0, C0, C0, 0" : : "r"(1)) -+ -+static inline void tosa_lcd_wait_hsync(void) -+{ -+ /* Waits for a rising edge on the VGA line */ -+ while((GPLR(TOSA_GPIO_VGA_LINE) & GPIO_bit(TOSA_GPIO_VGA_LINE)) == 0); -+ while((GPLR(TOSA_GPIO_VGA_LINE) & GPIO_bit(TOSA_GPIO_VGA_LINE)) != 0); -+} -+ -+/* On the Sharp SL-6000 (Tosa), due to a noisy LCD, we need to perform a wait -+ * before sampling the Y axis of the touchscreen */ -+void tosa_lcd_sync_on(int adcsel) { -+ unsigned long timer1 = 0, timer2 = 0, wait_time = 0; -+ if (adcsel == WM97XX_ADCSEL_Y) { -+ wait_time = tosa_lcd_get_hsync_time(); -+ CCNT_ON(); -+ -+ if (wait_time) { -+ /* wait for LCD rising edge */ -+ tosa_lcd_wait_hsync(); -+ /* get clock */ -+ CCNT(timer1); -+ CCNT(timer2); -+ -+ while ((timer2 - timer1) < wait_time) { -+ CCNT(timer2); -+ } -+ } -+ } -+} -+ -+void tosa_lcd_sync_off(void) { -+ CCNT_OFF(); -+} -+ -+static struct wm97xx_mach_ops tosa_mach_ops = { -+ .pre_sample = tosa_lcd_sync_on, -+ .post_sample = tosa_lcd_sync_off, -+}; -+ -+int tosa_ts_probe(struct device *dev) { -+ struct wm97xx *wm = dev->driver_data; -+ return wm97xx_register_mach_ops (wm, &tosa_mach_ops); -+} -+ -+ -+int tosa_ts_remove(struct device *dev) { -+ struct wm97xx *wm = dev->driver_data; -+ wm97xx_unregister_mach_ops (wm); -+ return 0; -+} -+ -+static struct device_driver tosa_ts_driver = { -+ .name = "wm97xx-touchscreen", -+ .bus = &wm97xx_bus_type, -+ .owner = THIS_MODULE, -+ .probe = tosa_ts_probe, -+ .remove = tosa_ts_remove, -+}; -+ -+static int __init tosa_ts_init(void) -+{ -+ return driver_register(&tosa_ts_driver); -+} -+ -+static void __exit tosa_ts_exit(void) -+{ -+ driver_unregister(&tosa_ts_driver); -+} -+ -+module_init(tosa_ts_init); -+module_exit(tosa_ts_exit); -+ -+/* Module information */ -+MODULE_AUTHOR("Mike Arthur, mike@mikearthur.co.uk, www.wolfsonmicro.com"); -+MODULE_DESCRIPTION("Sharp SL6000 Tosa Touch Screen Driver"); -+MODULE_LICENSE("GPL"); --- -1.4.4.4 - |