1 // replacement diag module
5 // initial release 2004/03/28
7 // 2004/08/26 asus & buffalo support added
9 #include <linux/module.h>
10 #include <linux/init.h>
11 #include <linux/kernel.h>
12 #include <linux/sysctl.h>
18 extern char * nvram_get(const char *name);
22 #define DIAG_GPIO (1<<1)
23 #define DMZ_GPIO (1<<7)
25 static void set_gpio(uint32 mask, uint32 value) {
26 sb_gpiocontrol(sbh,mask,0);
27 sb_gpioouten(sbh,mask,mask);
28 sb_gpioout(sbh,mask,value);
31 static void v2_set_diag(u8 state) {
32 set_gpio(DIAG_GPIO,state);
34 static void v2_set_dmz(u8 state) {
35 set_gpio(DMZ_GPIO,state);
42 static void v1_set_diag(u8 state) {
44 *(volatile u8*)(KSEG1ADDR(BCM4710_EUART)+LED_DIAG)=0xFF;
46 *(volatile u8*)(KSEG1ADDR(BCM4710_EUART)+LED_DIAG);
49 static void v1_set_dmz(u8 state) {
51 *(volatile u8*)(KSEG1ADDR(BCM4710_EUART)+LED_DMZ)=0xFF;
53 *(volatile u8*)(KSEG1ADDR(BCM4710_EUART)+LED_DMZ);
58 static void ignore(u8 ignored) {};
64 void (*set_diag)(u8 state);
65 void (*set_dmz)(u8 state);
67 static unsigned int diag = 0;
69 static void diag_change()
71 //printk(KERN_INFO "led -> %02x\n",diag);
73 set_diag(0xFF); // off
82 static int proc_diag(ctl_table *table, int write, struct file *filp,
83 void *buffer, size_t *lenp)
86 r = proc_dointvec(table, write, filp, buffer, lenp);
94 static unsigned char reset_gpio = 0;
95 static unsigned char reset_polarity = 0;
96 static unsigned int reset = 0;
98 static int proc_reset(ctl_table *table, int write, struct file *filp,
99 void *buffer, size_t *lenp)
103 sb_gpiocontrol(sbh,reset_gpio,reset_gpio);
104 sb_gpioouten(sbh,reset_gpio,0);
105 reset=!(sb_gpioin(sbh)&reset_gpio);
107 if (reset_polarity) reset=!reset;
112 return proc_dointvec(table, write, filp, buffer, lenp);
116 static struct ctl_table_header *diag_sysctl_header;
118 static ctl_table sys_diag[] = {
123 maxlen: sizeof(diag),
125 proc_handler: proc_diag
131 maxlen: sizeof(reset),
133 proc_handler: proc_reset
138 static int __init diag_init()
145 board_type = sb_boardtype(sbh);
146 printk(KERN_INFO "diag boardtype: %08x\n",board_type);
151 if ((board_type & 0xf00) == 0x400) {
153 buf=nvram_get("boardtype")?:"";
154 if (!strcmp(buf,"bcm94710dev")) {
155 buf=nvram_get("boardnum")?:"";
156 if (!strcmp(buf,"42")) {
158 set_diag=v1_set_diag;
162 } else if (!strcmp(buf,"asusX")) {
168 } else if (!strcmp(buf,"bcm94710ap")) {
169 buf=nvram_get("boardnum")?:"";
170 if (!strcmp(buf,"42")) {
175 } else if (!strcmp(buf,"44")) {
184 set_diag=v2_set_diag;
189 printk(KERN_INFO "using v%d hardware\n",board_type);
191 diag_sysctl_header = register_sysctl_table(sys_diag, 0);
197 static void __exit diag_exit()
199 unregister_sysctl_table(diag_sysctl_header);
202 module_init(diag_init);
203 module_exit(diag_exit);