2 * diag.h - GPIO interface driver for Broadcom boards
4 * Copyright (C) 2006 Mike Baker <mbm@openwrt.org>,
5 * Felix Fietkau <nbd@openwrt.org>
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 #define MODULE_NAME "diag"
27 #define FLASH_TIME HZ/6
41 struct prochandler_t
{
47 struct prochandler_t proc
;
55 struct prochandler_t proc
;
66 struct button_t buttons
[MAX_GPIO
];
70 struct led_t leds
[MAX_GPIO
];
80 #define sbh bcm947xx_sbh
81 #define sbh_lock bcm947xx_sbh_lock
83 extern void *bcm947xx_sbh
;
84 extern spinlock_t bcm947xx_sbh_lock
;
85 extern char *nvram_get(char *str
);
87 static struct platform_t platform
;
91 static void set_irqenable(int enabled
);
93 static void register_buttons(struct button_t
*b
);
94 static void unregister_buttons(struct button_t
*b
);
96 static void hotplug_button(struct event_t
*event
);
97 static void button_handler(int irq
, void *dev_id
, struct pt_regs
*regs
);
101 static void register_leds(struct led_t
*l
);
102 static void unregister_leds(struct led_t
*l
);
104 #define EXTIF_ADDR 0x1f000000
105 #define EXTIF_UART (EXTIF_ADDR + 0x00800000)
107 #define GPIO_TYPE_NORMAL (0x0 << 24)
108 #define GPIO_TYPE_EXTIF (0x1 << 24)
109 #define GPIO_TYPE_MASK (0xf << 24)
111 static void set_led_extif(struct led_t
*led
);
112 static void led_flash(unsigned long dummy
);
114 static struct timer_list led_timer
= {
120 static struct proc_dir_entry
*diag
, *leds
;
122 static ssize_t
diag_proc_read(struct file
*file
, char *buf
, size_t count
, loff_t
*ppos
);
123 static ssize_t
diag_proc_write(struct file
*file
, const char *buf
, size_t count
, void *data
);
125 static struct file_operations diag_proc_fops
= {
126 read
: diag_proc_read
,
127 write
: diag_proc_write
130 static struct prochandler_t proc_model
= { .type
= PROC_MODEL
};
131 static struct prochandler_t proc_gpiomask
= { .type
= PROC_GPIOMASK
};
133 /* TODO: export existing sb_irq instead */
134 static int sb_irq(void *sbh
)
139 uint32 flag
, sbipsflag
;
142 regs
= sb_coreregs(sbh
);
143 sb
= (sbconfig_t
*)((ulong
) regs
+ SBCONFIGOFF
);
144 flag
= (R_REG(&sb
->sbtpsflag
) & SBTPS_NUM0_MASK
);
146 idx
= sb_coreidx(sbh
);
148 if ((regs
= sb_setcore(sbh
, SB_MIPS
, 0)) ||
149 (regs
= sb_setcore(sbh
, SB_MIPS33
, 0))) {
150 sb
= (sbconfig_t
*)((ulong
) regs
+ SBCONFIGOFF
);
152 /* sbipsflag specifies which core is routed to interrupts 1 to 4 */
153 sbipsflag
= R_REG(&sb
->sbipsflag
);
154 for (irq
= 1; irq
<= 4; irq
++, sbipsflag
>>= 8) {
155 if ((sbipsflag
& 0x3f) == flag
)
162 sb_setcoreidx(sbh
, idx
);