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231 lines
6.8 KiB
Diff
231 lines
6.8 KiB
Diff
Index: linux-2.6.30.8/drivers/leds/Kconfig
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===================================================================
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--- linux-2.6.30.8.orig/drivers/leds/Kconfig 2009-10-19 21:31:31.000000000 +0200
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+++ linux-2.6.30.8/drivers/leds/Kconfig 2009-10-19 21:31:32.000000000 +0200
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@@ -227,6 +227,12 @@
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This option enables support for BD2802GU RGB LED driver chips
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accessed via the I2C bus.
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+config LEDS_IFXMIPS
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+ tristate "LED Support for IFXMIPS LEDs"
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+ depends on LEDS_CLASS && IFXMIPS
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+ help
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+ This option enables support for the CM-X270 LEDs.
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+
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comment "LED Triggers"
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config LEDS_TRIGGERS
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Index: linux-2.6.30.8/drivers/leds/Makefile
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===================================================================
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--- linux-2.6.30.8.orig/drivers/leds/Makefile 2009-10-19 21:31:31.000000000 +0200
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+++ linux-2.6.30.8/drivers/leds/Makefile 2009-10-19 21:31:32.000000000 +0200
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@@ -27,6 +27,7 @@
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obj-$(CONFIG_LEDS_DA903X) += leds-da903x.o
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obj-$(CONFIG_LEDS_WM8350) += leds-wm8350.o
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obj-$(CONFIG_LEDS_PWM) += leds-pwm.o
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+obj-$(CONFIG_LEDS_IFXMIPS) += leds-ifxmips.o
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# LED SPI Drivers
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obj-$(CONFIG_LEDS_DAC124S085) += leds-dac124s085.o
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Index: linux-2.6.30.8/drivers/leds/leds-ifxmips.c
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===================================================================
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--- /dev/null 1970-01-01 00:00:00.000000000 +0000
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+++ linux-2.6.30.8/drivers/leds/leds-ifxmips.c 2009-10-19 21:39:59.000000000 +0200
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@@ -0,0 +1,196 @@
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+/*
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation; either version 2 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program; if not, write to the Free Software
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+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
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+ *
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+ * Copyright (C) 2006 infineon
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+ * Copyright (C) 2007 John Crispin <blogic@openwrt.org>
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+ *
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+ */
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+
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+#include <linux/kernel.h>
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+#include <linux/module.h>
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+#include <linux/version.h>
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+#include <linux/types.h>
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+#include <linux/fs.h>
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+#include <linux/init.h>
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+#include <linux/platform_device.h>
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+#include <linux/uaccess.h>
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+#include <linux/unistd.h>
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+#include <linux/errno.h>
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+#include <linux/leds.h>
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+#include <linux/delay.h>
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+
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+#include <ifxmips.h>
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+#include <ifxmips_gpio.h>
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+#include <ifxmips_pmu.h>
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+
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+#define DRVNAME "ifxmips_led"
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+
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+/* might need to be changed depending on shift register used on the pcb */
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+#if 1
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+#define IFXMIPS_LED_CLK_EDGE IFXMIPS_LED_FALLING
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+#else
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+#define IFXMIPS_LED_CLK_EDGE IFXMIPS_LED_RISING
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+#endif
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+
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+#define IFXMIPS_LED_SPEED IFXMIPS_LED_8HZ
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+
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+#define IFXMIPS_LED_GPIO_PORT 0
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+
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+#define IFXMIPS_MAX_LED 24
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+
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+struct ifxmips_led {
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+ struct led_classdev cdev;
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+ u8 bit;
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+};
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+
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+void ifxmips_led_set(unsigned int led)
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+{
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+ led &= 0xffffff;
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+ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CPU0) | led, IFXMIPS_LED_CPU0);
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+}
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+EXPORT_SYMBOL(ifxmips_led_set);
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+
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+void ifxmips_led_clear(unsigned int led)
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+{
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+ led = ~(led & 0xffffff);
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+ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CPU0) & led, IFXMIPS_LED_CPU0);
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+}
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+EXPORT_SYMBOL(ifxmips_led_clear);
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+
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+void ifxmips_led_blink_set(unsigned int led)
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+{
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+ led &= 0xffffff;
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+ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) | led, IFXMIPS_LED_CON0);
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+}
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+EXPORT_SYMBOL(ifxmips_led_blink_set);
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+
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+void ifxmips_led_blink_clear(unsigned int led)
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+{
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+ led = ~(led & 0xffffff);
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+ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) & led, IFXMIPS_LED_CON0);
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+}
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+EXPORT_SYMBOL(ifxmips_led_blink_clear);
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+
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+static void ifxmips_ledapi_set(struct led_classdev *led_cdev,
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+ enum led_brightness value)
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+{
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+ struct ifxmips_led *led_dev =
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+ container_of(led_cdev, struct ifxmips_led, cdev);
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+
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+ if (value)
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+ ifxmips_led_set(1 << led_dev->bit);
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+ else
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+ ifxmips_led_clear(1 << led_dev->bit);
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+}
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+
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+void ifxmips_led_setup_gpio(void)
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+{
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+ int i = 0;
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+
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+ /* leds are controlled via a shift register
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+ we need to setup pins SH,D,ST (4,5,6) to make it work */
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+ for (i = 4; i < 7; i++) {
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+ ifxmips_port_set_altsel0(IFXMIPS_LED_GPIO_PORT, i);
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+ ifxmips_port_clear_altsel1(IFXMIPS_LED_GPIO_PORT, i);
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+ ifxmips_port_set_dir_out(IFXMIPS_LED_GPIO_PORT, i);
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+ ifxmips_port_set_open_drain(IFXMIPS_LED_GPIO_PORT, i);
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+ }
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+}
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+
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+static int ifxmips_led_probe(struct platform_device *dev)
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+{
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+ int i = 0;
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+
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+ ifxmips_led_setup_gpio();
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+
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+ ifxmips_w32(0, IFXMIPS_LED_AR);
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+ ifxmips_w32(0, IFXMIPS_LED_CPU0);
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+ ifxmips_w32(0, IFXMIPS_LED_CPU1);
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+ ifxmips_w32(LED_CON0_SWU, IFXMIPS_LED_CON0);
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+ ifxmips_w32(0, IFXMIPS_LED_CON1);
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+
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+ /* setup the clock edge that the shift register is triggered on */
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+ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) & ~IFXMIPS_LED_EDGE_MASK,
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+ IFXMIPS_LED_CON0);
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+ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) | IFXMIPS_LED_CLK_EDGE,
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+ IFXMIPS_LED_CON0);
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+
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+ /* per default leds 15-0 are set */
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+ ifxmips_w32(IFXMIPS_LED_GROUP1 | IFXMIPS_LED_GROUP0, IFXMIPS_LED_CON1);
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+
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+ /* leds are update periodically by the FPID */
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+ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON1) & ~IFXMIPS_LED_UPD_MASK,
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+ IFXMIPS_LED_CON1);
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+ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON1) | IFXMIPS_LED_UPD_SRC_FPI,
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+ IFXMIPS_LED_CON1);
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+
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+ /* set led update speed */
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+ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON1) & ~IFXMIPS_LED_MASK,
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+ IFXMIPS_LED_CON1);
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+ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON1) | IFXMIPS_LED_SPEED,
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+ IFXMIPS_LED_CON1);
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+
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+ /* adsl 0 and 1 leds are updated by the arc */
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+ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) | IFXMIPS_LED_ADSL_SRC,
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+ IFXMIPS_LED_CON0);
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+
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+ /* per default, the leds are turned on */
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+ ifxmips_pmu_enable(IFXMIPS_PMU_PWDCR_LED);
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+
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+ for (i = 0; i < IFXMIPS_MAX_LED; i++) {
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+ struct ifxmips_led *tmp =
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+ kzalloc(sizeof(struct ifxmips_led), GFP_KERNEL);
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+ tmp->cdev.brightness_set = ifxmips_ledapi_set;
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+ tmp->cdev.name = kmalloc(sizeof("ifxmips:led:00"), GFP_KERNEL);
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+ sprintf((char *)tmp->cdev.name, "ifxmips:led:%02d", i);
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+ tmp->cdev.default_trigger = NULL;
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+ tmp->bit = i;
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+ led_classdev_register(&dev->dev, &tmp->cdev);
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+ }
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+
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+ return 0;
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+}
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+
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+static int ifxmips_led_remove(struct platform_device *pdev)
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+{
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+ return 0;
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+}
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+
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+static struct platform_driver ifxmips_led_driver = {
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+ .probe = ifxmips_led_probe,
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+ .remove = ifxmips_led_remove,
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+ .driver = {
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+ .name = DRVNAME,
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+ .owner = THIS_MODULE,
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+ },
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+};
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+
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+int __init ifxmips_led_init(void)
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+{
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+ int ret = platform_driver_register(&ifxmips_led_driver);
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+ if (ret)
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+ printk(KERN_INFO
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+ "ifxmips_led: Error registering platfom driver!");
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+
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+ return ret;
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+}
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+
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+void __exit ifxmips_led_exit(void)
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+{
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+ platform_driver_unregister(&ifxmips_led_driver);
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+}
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+
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+module_init(ifxmips_led_init);
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+module_exit(ifxmips_led_exit);
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