tag rc6

[openwrt/svn-archive/openwrt.git] / target / linux / package / diag / src / diag.h

diff --git a/target/linux/package/diag/src/diag.h b/target/linux/package/diag/src/diag.h
new file mode 100644 (file)
index 0000000..95c31e0
--- /dev/null
+++ b/target/linux/package/diag/src/diag.h
@@ -0,0 +1,165 @@
+/*
+ * diag.h - GPIO interface driver for Broadcom boards
+ *
+ * Copyright (C) 2006 Mike Baker <mbm@openwrt.org>,
+ *                    Felix Fietkau <nbd@openwrt.org>
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * $Id:$
+ */
+
+#define MODULE_NAME "diag"
+
+#define MAX_GPIO 8
+#define FLASH_TIME HZ/6
+
+enum polarity_t {
+       REVERSE = 0,
+       NORMAL = 1,
+};
+
+enum {
+       PROC_BUTTON,
+       PROC_LED,
+       PROC_MODEL,
+       PROC_GPIOMASK
+};
+
+struct prochandler_t {
+       int type;
+       void *ptr;
+};
+
+struct button_t {
+       struct prochandler_t proc;
+       char *name;
+       u32 gpio;
+       unsigned long seen;
+       u8 pressed;
+};
+
+struct led_t {
+       struct prochandler_t proc;
+       char *name;
+       u32 gpio;
+       u8 polarity;
+       u8 flash;
+       u8 state;
+};
+
+struct platform_t {
+       char *name;
+
+       struct button_t buttons[MAX_GPIO];
+       u32 button_mask;
+       u32 button_polarity;
+
+       struct led_t leds[MAX_GPIO];
+};
+
+struct event_t {
+       struct tq_struct tq;
+       char buf[256];
+       char *argv[3];
+       char *envp[6];
+};
+
+#define sbh bcm947xx_sbh
+#define sbh_lock bcm947xx_sbh_lock
+
+extern void *bcm947xx_sbh;
+extern spinlock_t bcm947xx_sbh_lock;
+extern char *nvram_get(char *str);
+
+static struct platform_t platform;
+
+/* buttons */
+
+static void set_irqenable(int enabled);
+
+static void register_buttons(struct button_t *b);
+static void unregister_buttons(struct button_t *b);
+
+static void hotplug_button(struct event_t *event);
+static void button_handler(int irq, void *dev_id, struct pt_regs *regs);
+
+/* leds */
+
+static void register_leds(struct led_t *l);
+static void unregister_leds(struct led_t *l);
+
+#define EXTIF_ADDR 0x1f000000
+#define EXTIF_UART (EXTIF_ADDR + 0x00800000)
+
+#define GPIO_TYPE_NORMAL       (0x0 << 24)
+#define GPIO_TYPE_EXTIF        (0x1 << 24)
+#define GPIO_TYPE_MASK         (0xf << 24)
+
+static void set_led_extif(struct led_t *led);
+static void led_flash(unsigned long dummy);
+
+static struct timer_list led_timer = {
+       function: &led_flash
+};
+
+/* proc */
+
+static struct proc_dir_entry *diag, *leds;
+
+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 struct prochandler_t proc_model = { .type = PROC_MODEL };
+static struct prochandler_t proc_gpiomask = { .type = PROC_GPIOMASK };
+
+/* TODO: export existing sb_irq instead */
+static int sb_irq(void *sbh)
+{
+       uint idx;
+       void *regs;
+       sbconfig_t *sb;
+       uint32 flag, sbipsflag;
+       uint irq = 0;
+
+       regs = sb_coreregs(sbh);
+       sb = (sbconfig_t *)((ulong) regs + SBCONFIGOFF);
+       flag = (R_REG(&sb->sbtpsflag) & SBTPS_NUM0_MASK);
+
+       idx = sb_coreidx(sbh);
+
+       if ((regs = sb_setcore(sbh, SB_MIPS, 0)) ||
+           (regs = sb_setcore(sbh, SB_MIPS33, 0))) {
+               sb = (sbconfig_t *)((ulong) regs + SBCONFIGOFF);
+
+               /* sbipsflag specifies which core is routed to interrupts 1 to 4 */
+               sbipsflag = R_REG(&sb->sbipsflag);
+               for (irq = 1; irq <= 4; irq++, sbipsflag >>= 8) {
+                       if ((sbipsflag & 0x3f) == flag)
+                               break;
+               }
+               if (irq == 5)
+                       irq = 0;
+       }
+
+       sb_setcoreidx(sbh, idx);
+
+       return irq;
+}