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@@ -0,0 +1,939 @@
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+/*
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+ * diag.c - GPIO interface driver for Broadcom boards
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+ *
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+ * Copyright (C) 2006 Mike Baker <[email protected]>,
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+ * Felix Fietkau <[email protected]>
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+ *
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+ * This program is free software; you can redistribute it and/or
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+ * modify it under the terms of the GNU General Public License
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+ * as published by the Free Software Foundation; either version 2
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+ * of the License, or (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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+ * $Id:$
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+ */
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+#include <linux/module.h>
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+#include <linux/pci.h>
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+#include <linux/kmod.h>
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+#include <linux/proc_fs.h>
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+#include <linux/timer.h>
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+#include <linux/version.h>
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+#include <asm/uaccess.h>
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+
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
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+#include <linux/kobject.h>
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+#include <linux/workqueue.h>
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+#define hotplug_path uevent_helper
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+#else
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+#include <linux/tqueue.h>
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+#define INIT_WORK INIT_TQUEUE
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+#define schedule_work schedule_task
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+#define work_struct tq_struct
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+#define sbh bcm947xx_sbh
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+#define sbh_lock bcm947xx_sbh_lock
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+#endif
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+
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+#include <typedefs.h>
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+#include <osl.h>
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+#include <bcmdevs.h>
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+#include <sbutils.h>
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+#include <sbconfig.h>
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+#include <sbchipc.h>
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
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+#include <sbmips.h>
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+#else
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+#include <hndcpu.h>
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+#endif
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+
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+#define MODULE_NAME "diag"
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+
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+#define MAX_GPIO 8
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+#define FLASH_TIME HZ/6
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+
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+#define EXTIF_ADDR 0x1f000000
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+#define EXTIF_UART (EXTIF_ADDR + 0x00800000)
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+
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+/* For LEDs */
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+#define GPIO_TYPE_NORMAL (0x0 << 24)
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+#define GPIO_TYPE_EXTIF (0x1 << 24)
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+#define GPIO_TYPE_MASK (0xf << 24)
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+
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+static unsigned int gpiomask = 0;
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+module_param(gpiomask, int, 0644);
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+
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+enum polarity_t {
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+ REVERSE = 0,
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+ NORMAL = 1,
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+};
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+
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+enum {
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+ PROC_BUTTON,
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+ PROC_LED,
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+ PROC_MODEL,
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+ PROC_GPIOMASK
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+};
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+
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+struct prochandler_t {
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+ int type;
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+ void *ptr;
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+};
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+
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+struct button_t {
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+ struct prochandler_t proc;
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+ char *name;
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+ u16 gpio;
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+ u8 polarity;
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+ u8 pressed;
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+ unsigned long seen;
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+};
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+
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+struct led_t {
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+ struct prochandler_t proc;
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+ char *name;
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+ u32 gpio;
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+ u8 polarity;
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+ u8 flash;
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+ u8 state;
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+};
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+
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+struct platform_t {
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+ char *name;
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+ struct button_t buttons[MAX_GPIO];
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+ struct led_t leds[MAX_GPIO];
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+};
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+
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+enum {
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+ /* Linksys */
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+ WAP54GV1,
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+ WAP54GV3,
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+ WRT54GV1,
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+ WRT54G,
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+ WRTSL54GS,
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+ WRT54G3G,
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+
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+ /* ASUS */
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+ WLHDD,
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+ WL300G,
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+ WL500G,
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+ WL500GD,
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+ WL500GP,
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+ ASUS_4702,
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+
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+ /* Buffalo */
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+ WBR2_G54,
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+ WHR_G54S,
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+ WHR_HP_G54,
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+ WHR2_A54G54,
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+ WLA2_G54L,
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+ BUFFALO_UNKNOWN,
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+ BUFFALO_UNKNOWN_4710,
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+
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+ /* Siemens */
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+ SE505V1,
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+ SE505V2,
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+
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+ /* US Robotics */
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+ USR5461,
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+
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+ /* Dell */
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+ TM2300,
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+
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+ /* Motorola */
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+ WE800G,
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+ WR850GV1,
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+ WR850GV2,
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+
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+ /* Belkin */
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+ BELKIN_UNKNOWN,
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+};
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+
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+static struct platform_t platforms[] = {
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+ /* Linksys */
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+ [WAP54GV1] = {
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+ .name = "Linksys WAP54G V1",
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+ .buttons = {
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+ { .name = "reset", .gpio = 1 << 0 },
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+ },
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+ .leds = {
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+ { .name = "diag", .gpio = 1 << 3 },
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+ { .name = "wlan", .gpio = 1 << 4 },
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+ },
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+ },
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+ [WAP54GV3] = {
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+ .name = "Linksys WAP54G V3",
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+ .buttons = {
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+ /* FIXME: verify this */
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+ { .name = "reset", .gpio = 1 << 7 },
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+ { .name = "ses", .gpio = 1 << 0 },
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+ },
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+ .leds = {
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+ /* FIXME: diag? */
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+ { .name = "ses", .gpio = 1 << 1 },
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+ },
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+ },
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+ [WRT54GV1] = {
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+ .name = "Linksys WRT54G V1.x",
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+ .buttons = {
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+ { .name = "reset", .gpio = 1 << 6 },
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+ },
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+ .leds = {
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+ { .name = "diag", .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
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+ { .name = "dmz", .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
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+ },
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+ },
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+ [WRT54G] = {
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+ .name = "Linksys WRT54G*",
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+ .buttons = {
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+ { .name = "reset", .gpio = 1 << 6 },
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+ { .name = "ses", .gpio = 1 << 4 },
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+ },
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+ .leds = {
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+ { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
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+ { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
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+ { .name = "ses_white", .gpio = 1 << 2, .polarity = REVERSE },
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+ { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
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+ { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
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+ },
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+ },
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+ [WRTSL54GS] = {
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+ .name = "Linksys WRTSL54GS",
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+ .buttons = {
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+ { .name = "reset", .gpio = 1 << 6 },
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+ { .name = "ses", .gpio = 1 << 4 },
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+ },
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+ .leds = {
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+ { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
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+ { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
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+ { .name = "ses_white", .gpio = 1 << 5, .polarity = REVERSE },
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+ { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
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+ },
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+ },
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+ [WRT54G3G] = {
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+ .name = "Linksys WRT54G3G",
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+ .buttons = {
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+ { .name = "reset", .gpio = 1 << 6 },
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+ { .name = "3g", .gpio = 1 << 4 },
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+ },
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+ .leds = {
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+ { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
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+ { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
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+ { .name = "3g_green", .gpio = 1 << 2, .polarity = NORMAL },
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+ { .name = "3g_blue", .gpio = 1 << 3, .polarity = NORMAL },
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+ { .name = "3g_blink", .gpio = 1 << 5, .polarity = NORMAL },
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+ },
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+ },
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+ /* Asus */
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+ [WLHDD] = {
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+ .name = "ASUS WL-HDD",
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+ .buttons = {
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+ { .name = "reset", .gpio = 1 << 6 },
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+ },
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+ .leds = {
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+ { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
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+ },
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+ },
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+ [WL300G] = {
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+ .name = "ASUS WL-500g",
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+ .buttons = {
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+ { .name = "reset", .gpio = 1 << 6 },
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+ },
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+ .leds = {
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+ { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
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+ },
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+ },
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+ [WL500G] = {
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+ .name = "ASUS WL-500g",
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+ .buttons = {
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+ { .name = "reset", .gpio = 1 << 6 },
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+ },
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+ .leds = {
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+ { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
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+ },
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+ },
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+ [WL500GD] = {
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+ .name = "ASUS WL-500g Deluxe",
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+ .buttons = {
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+ { .name = "reset", .gpio = 1 << 6 },
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+ },
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+ .leds = {
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+ { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
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+ },
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+ },
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+ [WL500GP] = {
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+ .name = "ASUS WL-500g Premium",
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+ .buttons = {
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+ { .name = "reset", .gpio = 1 << 0 },
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+ { .name = "ses", .gpio = 1 << 4 },
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+ },
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+ .leds = {
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+ { .name = "power", .gpio = 1 << 1, .polarity = REVERSE },
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+ },
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+ },
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+ [ASUS_4702] = {
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+ .name = "ASUS (unknown, BCM4702)",
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+ .buttons = {
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+ { .name = "reset", .gpio = 1 << 6 },
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+ },
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+ .leds = {
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+ { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
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+ },
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+ },
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+ /* Buffalo */
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+ [WHR_G54S] = {
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+ .name = "Buffalo WHR-G54S",
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+ .buttons = {
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+ { .name = "reset", .gpio = 1 << 4 },
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+ { .name = "ses", .gpio = 1 << 0 },
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+ },
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+ .leds = {
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+ { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
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+ { .name = "internal", .gpio = 1 << 3, .polarity = REVERSE },
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+ { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
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+ },
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+ },
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+ [WBR2_G54] = {
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+ .name = "Buffalo WBR2-G54",
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+ /* FIXME: verify */
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+ .buttons = {
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+ { .name = "reset", .gpio = 1 << 7 },
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+ },
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+ .leds = {
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+ { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
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+ },
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+ },
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+ [WHR_HP_G54] = {
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+ .name = "Buffalo WHR-HP-G54",
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+ .buttons = {
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+ { .name = "reset", .gpio = 1 << 4 },
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+ { .name = "bridge", .gpio = 1 << 5 },
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+ { .name = "ses", .gpio = 1 << 0 },
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+ },
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+ .leds = {
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+ { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
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+ { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
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+ { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
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+ },
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+ },
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+ [WHR2_A54G54] = {
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+ .name = "Buffalo WHR2-A54G54",
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+ .buttons = {
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+ { .name = "reset", .gpio = 1 << 4 },
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+ },
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+ .leds = {
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+ { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
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+ },
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+ },
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+ [WLA2_G54L] = {
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+ .name = "Buffalo WLA2-G54L",
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+ /* FIXME: verify */
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+ .buttons = {
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+ { .name = "reset", .gpio = 1 << 7 },
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+ },
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+ .leds = {
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+ { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
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+ },
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+ },
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+ [BUFFALO_UNKNOWN] = {
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+ .name = "Buffalo (unknown)",
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+ .buttons = {
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+ { .name = "reset", .gpio = 1 << 7 },
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+ },
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+ .leds = {
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+ { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
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+ },
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+ },
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+ [BUFFALO_UNKNOWN_4710] = {
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+ .name = "Buffalo (unknown, BCM4710)",
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+ .buttons = {
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+ { .name = "reset", .gpio = 1 << 4 },
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+ },
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+ .leds = {
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+ { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
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+ },
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+ },
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+ /* Siemens */
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+ [SE505V1] = {
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+ .name = "Siemens SE505 V1",
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+ .buttons = {
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+ /* No usable buttons */
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+ },
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+ .leds = {
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+ { .name = "dmz", .gpio = 1 << 4, .polarity = REVERSE },
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+ { .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
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+ },
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+ },
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+ [SE505V2] = {
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+ .name = "Siemens SE505 V2",
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+ .buttons = {
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+ /* No usable buttons */
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+ },
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+ .leds = {
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+ { .name = "power", .gpio = 1 << 5, .polarity = REVERSE },
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+ { .name = "dmz", .gpio = 1 << 0, .polarity = REVERSE },
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+ { .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
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+ },
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+ },
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+ /* US Robotics */
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+ [USR5461] = {
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+ .name = "U.S. Robotics USR5461",
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+ .buttons = {
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+ /* No usable buttons */
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+ },
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+ .leds = {
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+ { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
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+ { .name = "printer", .gpio = 1 << 1, .polarity = REVERSE },
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+ },
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+ },
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+ /* Dell */
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+ [TM2300] = {
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+ .name = "Dell TrueMobile 2300",
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+ .buttons = {
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+ { .name = "reset", .gpio = 1 << 0 },
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+ },
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+ .leds = {
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+ { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
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+ },
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+ },
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+ /* Motorola */
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+ [WE800G] = {
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+ .name = "Motorola WE800G",
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+ .buttons = {
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+ { .name = "reset", .gpio = 1 << 0 },
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+ },
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+ .leds = {
|
|
|
+ { .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
|
|
|
+ { .name = "diag", .gpio = 1 << 2, .polarity = REVERSE },
|
|
|
+ { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
|
|
|
+ },
|
|
|
+ },
|
|
|
+ [WR850GV1] = {
|
|
|
+ .name = "Motorola WR850G V1",
|
|
|
+ .buttons = {
|
|
|
+ { .name = "reset", .gpio = 1 << 0 },
|
|
|
+ },
|
|
|
+ .leds = {
|
|
|
+ { .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
|
|
|
+ { .name = "diag", .gpio = 1 << 3, .polarity = REVERSE },
|
|
|
+ { .name = "modem", .gpio = 1 << 6, .polarity = NORMAL },
|
|
|
+ { .name = "wlan_red", .gpio = 1 << 5, .polarity = REVERSE },
|
|
|
+ { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
|
|
|
+ },
|
|
|
+ },
|
|
|
+ [WR850GV2] = {
|
|
|
+ .name = "Motorola WR850G V2",
|
|
|
+ .buttons = {
|
|
|
+ { .name = "reset", .gpio = 1 << 5 },
|
|
|
+ },
|
|
|
+ .leds = {
|
|
|
+ { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
|
|
|
+ { .name = "wlan", .gpio = 1 << 0, .polarity = NORMAL },
|
|
|
+ { .name = "modem_green",.gpio = 1 << 6, .polarity = REVERSE },
|
|
|
+ { .name = "modem_red", .gpio = 1 << 7, .polarity = REVERSE },
|
|
|
+ },
|
|
|
+ },
|
|
|
+ /* Belkin */
|
|
|
+ [BELKIN_UNKNOWN] = {
|
|
|
+ .name = "Belkin (unknown)",
|
|
|
+ /* FIXME: verify & add detection */
|
|
|
+ .buttons = {
|
|
|
+ { .name = "reset", .gpio = 1 << 7 },
|
|
|
+ },
|
|
|
+ .leds = {
|
|
|
+ { .name = "power", .gpio = 1 << 5, .polarity = NORMAL },
|
|
|
+ { .name = "wlan", .gpio = 1 << 3, .polarity = NORMAL },
|
|
|
+ { .name = "connected", .gpio = 1 << 0, .polarity = NORMAL },
|
|
|
+ },
|
|
|
+ },
|
|
|
+};
|
|
|
+
|
|
|
+extern void *sbh;
|
|
|
+extern spinlock_t sbh_lock;
|
|
|
+extern char *nvram_get(char *str);
|
|
|
+
|
|
|
+static struct proc_dir_entry *diag, *leds;
|
|
|
+static struct platform_t platform;
|
|
|
+static void led_flash(unsigned long dummy);
|
|
|
+
|
|
|
+#define getvar(str) (nvram_get(str)?:"")
|
|
|
+
|
|
|
+static void set_led_extif(struct led_t *led)
|
|
|
+{
|
|
|
+ volatile u8 *addr = (volatile u8 *) KSEG1ADDR(EXTIF_UART) + (led->gpio & ~GPIO_TYPE_MASK);
|
|
|
+ if (led->state)
|
|
|
+ *addr = 0xFF;
|
|
|
+ else
|
|
|
+ *addr;
|
|
|
+}
|
|
|
+
|
|
|
+static struct platform_t __init *platform_detect(void)
|
|
|
+{
|
|
|
+ char *boardnum, *boardtype, *buf;
|
|
|
+
|
|
|
+ boardnum = getvar("boardnum");
|
|
|
+ boardtype = getvar("boardtype");
|
|
|
+ if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
|
|
|
+ /* CFE based - newer hardware */
|
|
|
+ if (!strcmp(boardnum, "42")) { /* Linksys */
|
|
|
+ if (!strcmp(boardtype, "0x0101"))
|
|
|
+ return &platforms[WRT54G3G];
|
|
|
+
|
|
|
+ if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
|
|
|
+ return &platforms[WRTSL54GS];
|
|
|
+
|
|
|
+ /* default to WRT54G */
|
|
|
+ return &platforms[WRT54G];
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!strcmp(boardnum, "45")) { /* ASUS */
|
|
|
+ if (!strcmp(boardtype,"0x042f"))
|
|
|
+ return &platforms[WL500GP];
|
|
|
+ else
|
|
|
+ return &platforms[WL500GD];
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!strcmp(boardnum, "10496"))
|
|
|
+ return &platforms[USR5461];
|
|
|
+ } else { /* PMON based - old stuff */
|
|
|
+ if (!strncmp(boardtype, "bcm94710dev", 11)) {
|
|
|
+ if (!strcmp(boardnum, "42"))
|
|
|
+ return &platforms[WRT54GV1];
|
|
|
+ if (simple_strtoul(boardnum, NULL, 9) == 2)
|
|
|
+ return &platforms[WAP54GV1];
|
|
|
+ }
|
|
|
+ if (!strncmp(getvar("hardware_version"), "WL500-", 6))
|
|
|
+ return &platforms[WL500G];
|
|
|
+ if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
|
|
|
+ /* Either WL-300g or WL-HDD, do more extensive checks */
|
|
|
+ if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
|
|
|
+ (simple_strtoul(getvar("et1phyaddr"), NULL, 9) == 1))
|
|
|
+ return &platforms[WLHDD];
|
|
|
+ if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
|
|
|
+ (simple_strtoul(getvar("et1phyaddr"), NULL, 9) == 10))
|
|
|
+ return &platforms[WL300G];
|
|
|
+ }
|
|
|
+
|
|
|
+ /* unknown asus stuff, probably bcm4702 */
|
|
|
+ if (!strncmp(boardnum, "asusX", 5))
|
|
|
+ return &platforms[ASUS_4702];
|
|
|
+
|
|
|
+ if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
|
|
|
+ (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
|
|
|
+ if (!strncmp(getvar("ModelId"),"WE800G", 6))
|
|
|
+ return &platforms[WE800G];
|
|
|
+ else
|
|
|
+ return &platforms[WR850GV1];
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
|
|
|
+ /* Buffalo hardware, check id for specific hardware matches */
|
|
|
+ if (!strcmp(buf, "29bb0332"))
|
|
|
+ return &platforms[WBR2_G54];
|
|
|
+ if (!strcmp(buf, "29129"))
|
|
|
+ return &platforms[WLA2_G54L];
|
|
|
+ if (!strcmp(buf, "30189"))
|
|
|
+ return &platforms[WHR_HP_G54];
|
|
|
+ if (!strcmp(buf, "30182"))
|
|
|
+ return &platforms[WHR_G54S];
|
|
|
+ if (!strcmp(buf, "290441dd"))
|
|
|
+ return &platforms[WHR2_A54G54];
|
|
|
+ }
|
|
|
+
|
|
|
+ if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
|
|
|
+ if (!strncmp(boardtype, "bcm94710ap", 10))
|
|
|
+ return &platforms[BUFFALO_UNKNOWN_4710];
|
|
|
+ else
|
|
|
+ return &platforms[BUFFALO_UNKNOWN];
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!strcmp(getvar("CFEver"), "MotoWRv203"))
|
|
|
+ return &platforms[WR850GV2];
|
|
|
+
|
|
|
+ /* not found */
|
|
|
+ return NULL;
|
|
|
+}
|
|
|
+
|
|
|
+static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos);
|
|
|
+static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, void *data);
|
|
|
+static struct file_operations diag_proc_fops = {
|
|
|
+ read: diag_proc_read,
|
|
|
+ write: diag_proc_write
|
|
|
+};
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
|
|
|
+{
|
|
|
+#ifdef LINUX_2_4
|
|
|
+ struct inode *inode = file->f_dentry->d_inode;
|
|
|
+ struct proc_dir_entry *dent = inode->u.generic_ip;
|
|
|
+#else
|
|
|
+ struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
|
|
|
+#endif
|
|
|
+ char *page;
|
|
|
+ int len = 0;
|
|
|
+
|
|
|
+ if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
|
|
|
+ return -ENOBUFS;
|
|
|
+
|
|
|
+ if (dent->data != NULL) {
|
|
|
+ struct prochandler_t *handler = (struct prochandler_t *) dent->data;
|
|
|
+ switch (handler->type) {
|
|
|
+ case PROC_LED: {
|
|
|
+ struct led_t * led = (struct led_t *) handler->ptr;
|
|
|
+ if (led->flash) {
|
|
|
+ len = sprintf(page, "f\n");
|
|
|
+ } else {
|
|
|
+ if (led->gpio & GPIO_TYPE_EXTIF) {
|
|
|
+ len = sprintf(page, "%d\n", led->state);
|
|
|
+ } else {
|
|
|
+ int in = (sb_gpioin(sbh) & led->gpio ? 1 : 0);
|
|
|
+ int p = (led->polarity == NORMAL ? 0 : 1);
|
|
|
+ len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
|
|
|
+ }
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ case PROC_MODEL:
|
|
|
+ len = sprintf(page, "%s\n", platform.name);
|
|
|
+ break;
|
|
|
+ case PROC_GPIOMASK:
|
|
|
+ len = sprintf(page, "%d\n", gpiomask);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ len += 1;
|
|
|
+
|
|
|
+ if (*ppos < len) {
|
|
|
+ len = min_t(int, len - *ppos, count);
|
|
|
+ if (copy_to_user(buf, (page + *ppos), len)) {
|
|
|
+ kfree(page);
|
|
|
+ return -EFAULT;
|
|
|
+ }
|
|
|
+ *ppos += len;
|
|
|
+ } else {
|
|
|
+ len = 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ return len;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, void *data)
|
|
|
+{
|
|
|
+#ifdef LINUX_2_4
|
|
|
+ struct inode *inode = file->f_dentry->d_inode;
|
|
|
+ struct proc_dir_entry *dent = inode->u.generic_ip;
|
|
|
+#else
|
|
|
+ struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
|
|
|
+#endif
|
|
|
+ char *page;
|
|
|
+ int ret = -EINVAL;
|
|
|
+
|
|
|
+ if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
|
|
|
+ return -ENOBUFS;
|
|
|
+
|
|
|
+ if (copy_from_user(page, buf, count)) {
|
|
|
+ kfree(page);
|
|
|
+ return -EINVAL;
|
|
|
+ }
|
|
|
+ page[count] = 0;
|
|
|
+
|
|
|
+ if (dent->data != NULL) {
|
|
|
+ struct prochandler_t *handler = (struct prochandler_t *) dent->data;
|
|
|
+ switch (handler->type) {
|
|
|
+ case PROC_LED: {
|
|
|
+ struct led_t *led = (struct led_t *) handler->ptr;
|
|
|
+ int p = (led->polarity == NORMAL ? 0 : 1);
|
|
|
+
|
|
|
+ if (!(led->gpio & GPIO_TYPE_EXTIF) && (led->gpio & gpiomask))
|
|
|
+ break;
|
|
|
+
|
|
|
+ if (page[0] == 'f') {
|
|
|
+ led->flash = 1;
|
|
|
+ led_flash(0);
|
|
|
+ } else {
|
|
|
+ led->flash = 0;
|
|
|
+ if (led->gpio & GPIO_TYPE_EXTIF) {
|
|
|
+ led->state = p ^ ((page[0] == '1') ? 1 : 0);
|
|
|
+ set_led_extif(led);
|
|
|
+ } else {
|
|
|
+ sb_gpioouten(sbh, led->gpio, led->gpio, GPIO_DRV_PRIORITY);
|
|
|
+ sb_gpiocontrol(sbh, led->gpio, 0, GPIO_DRV_PRIORITY);
|
|
|
+ sb_gpioout(sbh, led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0), GPIO_DRV_PRIORITY);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ case PROC_GPIOMASK:
|
|
|
+ gpiomask = simple_strtoul(page, NULL, 16);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ ret = count;
|
|
|
+ }
|
|
|
+
|
|
|
+ kfree(page);
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+struct event_t {
|
|
|
+ struct work_struct tq;
|
|
|
+ char buf[256];
|
|
|
+ char *argv[3];
|
|
|
+ char *envp[6];
|
|
|
+};
|
|
|
+
|
|
|
+static void hotplug_button(struct event_t *event)
|
|
|
+{
|
|
|
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
|
|
|
+ call_usermodehelper (event->argv[0], event->argv, event->envp, 1);
|
|
|
+#else
|
|
|
+ call_usermodehelper (event->argv[0], event->argv, event->envp);
|
|
|
+#endif
|
|
|
+ kfree(event);
|
|
|
+}
|
|
|
+
|
|
|
+static void set_irqenable(int enabled)
|
|
|
+{
|
|
|
+ unsigned int coreidx;
|
|
|
+ unsigned long flags;
|
|
|
+ chipcregs_t *cc;
|
|
|
+
|
|
|
+ spin_lock_irqsave(sbh_lock, flags);
|
|
|
+ coreidx = sb_coreidx(sbh);
|
|
|
+ if ((cc = sb_setcore(sbh, SB_CC, 0))) {
|
|
|
+ int intmask;
|
|
|
+
|
|
|
+ intmask = readl(&cc->intmask);
|
|
|
+ if (enabled)
|
|
|
+ intmask |= CI_GPIO;
|
|
|
+ else
|
|
|
+ intmask &= ~CI_GPIO;
|
|
|
+ writel(intmask, &cc->intmask);
|
|
|
+ }
|
|
|
+ sb_setcoreidx(sbh, coreidx);
|
|
|
+ spin_unlock_irqrestore(sbh_lock, flags);
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
|
|
|
+{
|
|
|
+ struct button_t *b;
|
|
|
+ int in = sb_gpioin(sbh);
|
|
|
+ struct event_t *event;
|
|
|
+
|
|
|
+ set_irqenable(0);
|
|
|
+ for (b = platform.buttons; b->name; b++) {
|
|
|
+ if (b->gpio & gpiomask)
|
|
|
+ continue;
|
|
|
+
|
|
|
+ if (b->polarity != (in & b->gpio)) {
|
|
|
+ b->pressed ^= 1;
|
|
|
+
|
|
|
+ if ((event = (struct event_t *)kmalloc (sizeof(struct event_t), GFP_ATOMIC))) {
|
|
|
+ int i;
|
|
|
+ char *scratch = event->buf;
|
|
|
+
|
|
|
+ i = 0;
|
|
|
+ event->argv[i++] = hotplug_path;
|
|
|
+ event->argv[i++] = "button";
|
|
|
+ event->argv[i] = 0;
|
|
|
+
|
|
|
+ i = 0;
|
|
|
+ event->envp[i++] = "HOME=/";
|
|
|
+ event->envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
|
|
|
+ event->envp[i++] = scratch;
|
|
|
+ scratch += sprintf (scratch, "ACTION=%s", b->pressed?"pressed":"released") + 1;
|
|
|
+ event->envp[i++] = scratch;
|
|
|
+ scratch += sprintf (scratch, "BUTTON=%s", b->name) + 1;
|
|
|
+ event->envp[i++] = scratch;
|
|
|
+ scratch += sprintf (scratch, "SEEN=%ld", (jiffies - b->seen)/HZ) + 1;
|
|
|
+ event->envp[i] = 0;
|
|
|
+
|
|
|
+ INIT_WORK(&event->tq, (void *)(void *)hotplug_button, (void *)event);
|
|
|
+ schedule_work(&event->tq);
|
|
|
+ }
|
|
|
+
|
|
|
+ b->seen = jiffies;
|
|
|
+ b->polarity ^= b->gpio;
|
|
|
+ sb_gpiointpolarity(sbh, b->gpio, b->polarity, GPIO_DRV_PRIORITY);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ set_irqenable(1);
|
|
|
+ return IRQ_HANDLED;
|
|
|
+}
|
|
|
+
|
|
|
+static struct timer_list led_timer = {
|
|
|
+ function: &led_flash
|
|
|
+};
|
|
|
+
|
|
|
+static void led_flash(unsigned long dummy) {
|
|
|
+ struct led_t *l;
|
|
|
+ unsigned mask = 0;
|
|
|
+ unsigned extif_blink = 0;
|
|
|
+
|
|
|
+ for (l = platform.leds; l->name; l++) {
|
|
|
+ if (l->flash) {
|
|
|
+ if (l->gpio & GPIO_TYPE_EXTIF) {
|
|
|
+ extif_blink = 1;
|
|
|
+ l->state = !l->state;
|
|
|
+ set_led_extif(l);
|
|
|
+ } else {
|
|
|
+ mask |= l->gpio;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ mask &= ~gpiomask;
|
|
|
+ if (mask) {
|
|
|
+ unsigned val;
|
|
|
+
|
|
|
+ val = ~sb_gpioin(sbh);
|
|
|
+ val &= mask;
|
|
|
+
|
|
|
+ sb_gpioouten(sbh, mask, mask, GPIO_DRV_PRIORITY);
|
|
|
+ sb_gpiocontrol(sbh, mask, 0, GPIO_DRV_PRIORITY);
|
|
|
+ sb_gpioout(sbh, mask, val, GPIO_DRV_PRIORITY);
|
|
|
+ }
|
|
|
+ if (mask || extif_blink) {
|
|
|
+ mod_timer(&led_timer, jiffies + FLASH_TIME);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static void __init register_buttons(struct button_t *b)
|
|
|
+{
|
|
|
+ int irq = sb_irq(sbh) + 2;
|
|
|
+
|
|
|
+ request_irq(irq, button_handler, SA_SHIRQ | SA_SAMPLE_RANDOM, "gpio", button_handler);
|
|
|
+
|
|
|
+ for (; b->name; b++) {
|
|
|
+ if (b->gpio & gpiomask)
|
|
|
+ continue;
|
|
|
+
|
|
|
+ sb_gpioouten(sbh, b->gpio,0, GPIO_DRV_PRIORITY);
|
|
|
+ sb_gpiocontrol(sbh, b->gpio,0, GPIO_DRV_PRIORITY);
|
|
|
+ b->polarity = sb_gpioin(sbh) & b->gpio;
|
|
|
+ sb_gpiointpolarity(sbh, b->gpio, b->polarity, GPIO_DRV_PRIORITY);
|
|
|
+ sb_gpiointmask(sbh, b->gpio, b->gpio, GPIO_DRV_PRIORITY);
|
|
|
+ }
|
|
|
+ set_irqenable(1);
|
|
|
+}
|
|
|
+
|
|
|
+static void __exit unregister_buttons(struct button_t *b)
|
|
|
+{
|
|
|
+ int irq = sb_irq(sbh) + 2;
|
|
|
+
|
|
|
+ for (; b->name; b++)
|
|
|
+ sb_gpiointmask(sbh, b->gpio, 0, GPIO_DRV_PRIORITY);
|
|
|
+
|
|
|
+ free_irq(irq, button_handler);
|
|
|
+}
|
|
|
+
|
|
|
+static void __init register_leds(struct led_t *l)
|
|
|
+{
|
|
|
+ struct proc_dir_entry *p;
|
|
|
+
|
|
|
+ leds = proc_mkdir("led", diag);
|
|
|
+ if (!leds)
|
|
|
+ return;
|
|
|
+
|
|
|
+ for(; l->name; l++) {
|
|
|
+ if (l->gpio & gpiomask)
|
|
|
+ continue;
|
|
|
+
|
|
|
+ if (l->gpio & GPIO_TYPE_EXTIF) {
|
|
|
+ l->state = 0;
|
|
|
+ set_led_extif(l);
|
|
|
+ } else {
|
|
|
+ sb_gpioouten(sbh, l->gpio, l->gpio, GPIO_DRV_PRIORITY);
|
|
|
+ sb_gpiocontrol(sbh, l->gpio, 0, GPIO_DRV_PRIORITY);
|
|
|
+ sb_gpioout(sbh, l->gpio, (l->polarity == NORMAL)?0:l->gpio, GPIO_DRV_PRIORITY);
|
|
|
+ }
|
|
|
+
|
|
|
+ if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
|
|
|
+ l->proc.type = PROC_LED;
|
|
|
+ l->proc.ptr = l;
|
|
|
+ p->data = (void *) &l->proc;
|
|
|
+ p->proc_fops = &diag_proc_fops;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static void __exit unregister_leds(struct led_t *l)
|
|
|
+{
|
|
|
+ for(; l->name; l++)
|
|
|
+ remove_proc_entry(l->name, leds);
|
|
|
+
|
|
|
+ remove_proc_entry("led", diag);
|
|
|
+}
|
|
|
+
|
|
|
+static void __exit diag_exit(void)
|
|
|
+{
|
|
|
+
|
|
|
+ del_timer(&led_timer);
|
|
|
+
|
|
|
+ if (platform.buttons)
|
|
|
+ unregister_buttons(platform.buttons);
|
|
|
+
|
|
|
+ if (platform.leds)
|
|
|
+ unregister_leds(platform.leds);
|
|
|
+
|
|
|
+ remove_proc_entry("model", diag);
|
|
|
+ remove_proc_entry("gpiomask", diag);
|
|
|
+ remove_proc_entry("diag", NULL);
|
|
|
+}
|
|
|
+
|
|
|
+static struct prochandler_t proc_model = { .type = PROC_MODEL };
|
|
|
+static struct prochandler_t proc_gpiomask = { .type = PROC_GPIOMASK };
|
|
|
+
|
|
|
+static int __init diag_init(void)
|
|
|
+{
|
|
|
+ static struct proc_dir_entry *p;
|
|
|
+ static struct platform_t *detected;
|
|
|
+
|
|
|
+ detected = platform_detect();
|
|
|
+ if (!detected) {
|
|
|
+ printk(MODULE_NAME ": Router model not detected.\n");
|
|
|
+ return -ENODEV;
|
|
|
+ }
|
|
|
+ memcpy(&platform, detected, sizeof(struct platform_t));
|
|
|
+
|
|
|
+ printk(MODULE_NAME ": Detected '%s'\n", platform.name);
|
|
|
+
|
|
|
+ if (!(diag = proc_mkdir("diag", NULL))) {
|
|
|
+ printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
|
|
|
+ return -EINVAL;
|
|
|
+ }
|
|
|
+
|
|
|
+ if ((p = create_proc_entry("model", S_IRUSR, diag))) {
|
|
|
+ p->data = (void *) &proc_model;
|
|
|
+ p->proc_fops = &diag_proc_fops;
|
|
|
+ }
|
|
|
+
|
|
|
+ if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
|
|
|
+ p->data = (void *) &proc_gpiomask;
|
|
|
+ p->proc_fops = &diag_proc_fops;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (platform.buttons)
|
|
|
+ register_buttons(platform.buttons);
|
|
|
+
|
|
|
+ if (platform.leds)
|
|
|
+ register_leds(platform.leds);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+module_init(diag_init);
|
|
|
+module_exit(diag_exit);
|
|
|
+
|
|
|
+MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
|
|
|
+MODULE_LICENSE("GPL");
|
Felix Fietkau