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authorAlan Cox <alan@redhat.com>2008-05-19 09:06:25 -0400
committerWim Van Sebroeck <wim@iguana.be>2008-05-28 07:51:32 -0400
commit0e6fa3fb38e2c89ba9abce9a8b74867f07d20d19 (patch)
treee99f14944b49e494fa0222bcd69db7e4dfbb680a /drivers/watchdog/iTCO_vendor_support.c
parent30abcec14573e3462f18d63f4a8f154a23689f1b (diff)
[WATCHDOG 18/57] iTCO: unlocked_ioctl, coding style and cleanup
Review and switch to unlocked_ioctl Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog/iTCO_vendor_support.c')
-rw-r--r--drivers/watchdog/iTCO_vendor_support.c53
1 files changed, 29 insertions, 24 deletions
diff --git a/drivers/watchdog/iTCO_vendor_support.c b/drivers/watchdog/iTCO_vendor_support.c
index cafc465f2ae3..09e9534ac2e4 100644
--- a/drivers/watchdog/iTCO_vendor_support.c
+++ b/drivers/watchdog/iTCO_vendor_support.c
@@ -32,7 +32,9 @@
32#include <linux/init.h> /* For __init/__exit/... */ 32#include <linux/init.h> /* For __init/__exit/... */
33#include <linux/ioport.h> /* For io-port access */ 33#include <linux/ioport.h> /* For io-port access */
34 34
35#include <asm/io.h> /* For inb/outb/... */ 35#include <linux/io.h> /* For inb/outb/... */
36
37#include "iTCO_vendor.h"
36 38
37/* iTCO defines */ 39/* iTCO defines */
38#define SMI_EN acpibase + 0x30 /* SMI Control and Enable Register */ 40#define SMI_EN acpibase + 0x30 /* SMI Control and Enable Register */
@@ -40,10 +42,12 @@
40#define TCO1_STS TCOBASE + 0x04 /* TCO1 Status Register */ 42#define TCO1_STS TCOBASE + 0x04 /* TCO1 Status Register */
41 43
42/* List of vendor support modes */ 44/* List of vendor support modes */
43#define SUPERMICRO_OLD_BOARD 1 /* SuperMicro Pentium 3 Era 370SSE+-OEM1/P3TSSE */ 45/* SuperMicro Pentium 3 Era 370SSE+-OEM1/P3TSSE */
44#define SUPERMICRO_NEW_BOARD 2 /* SuperMicro Pentium 4 / Xeon 4 / EMT64T Era Systems */ 46#define SUPERMICRO_OLD_BOARD 1
47/* SuperMicro Pentium 4 / Xeon 4 / EMT64T Era Systems */
48#define SUPERMICRO_NEW_BOARD 2
45 49
46static int vendorsupport = 0; 50static int vendorsupport;
47module_param(vendorsupport, int, 0); 51module_param(vendorsupport, int, 0);
48MODULE_PARM_DESC(vendorsupport, "iTCO vendor specific support mode, default=0 (none), 1=SuperMicro Pent3, 2=SuperMicro Pent4+"); 52MODULE_PARM_DESC(vendorsupport, "iTCO vendor specific support mode, default=0 (none), 1=SuperMicro Pent3, 2=SuperMicro Pent4+");
49 53
@@ -143,34 +147,35 @@ static void supermicro_old_pre_keepalive(unsigned long acpibase)
143 */ 147 */
144 148
145/* I/O Port's */ 149/* I/O Port's */
146#define SM_REGINDEX 0x2e /* SuperMicro ICH4+ Register Index */ 150#define SM_REGINDEX 0x2e /* SuperMicro ICH4+ Register Index */
147#define SM_DATAIO 0x2f /* SuperMicro ICH4+ Register Data I/O */ 151#define SM_DATAIO 0x2f /* SuperMicro ICH4+ Register Data I/O */
148 152
149/* Control Register's */ 153/* Control Register's */
150#define SM_CTLPAGESW 0x07 /* SuperMicro ICH4+ Control Page Switch */ 154#define SM_CTLPAGESW 0x07 /* SuperMicro ICH4+ Control Page Switch */
151#define SM_CTLPAGE 0x08 /* SuperMicro ICH4+ Control Page Num */ 155#define SM_CTLPAGE 0x08 /* SuperMicro ICH4+ Control Page Num */
152 156
153#define SM_WATCHENABLE 0x30 /* Watchdog enable: Bit 0: 0=off, 1=on */ 157#define SM_WATCHENABLE 0x30 /* Watchdog enable: Bit 0: 0=off, 1=on */
154 158
155#define SM_WATCHPAGE 0x87 /* Watchdog unlock control page */ 159#define SM_WATCHPAGE 0x87 /* Watchdog unlock control page */
156 160
157#define SM_ENDWATCH 0xAA /* Watchdog lock control page */ 161#define SM_ENDWATCH 0xAA /* Watchdog lock control page */
158 162
159#define SM_COUNTMODE 0xf5 /* Watchdog count mode select */ 163#define SM_COUNTMODE 0xf5 /* Watchdog count mode select */
160 /* (Bit 3: 0 = seconds, 1 = minutes */ 164 /* (Bit 3: 0 = seconds, 1 = minutes */
161 165
162#define SM_WATCHTIMER 0xf6 /* 8-bits, Watchdog timer counter (RW) */ 166#define SM_WATCHTIMER 0xf6 /* 8-bits, Watchdog timer counter (RW) */
163 167
164#define SM_RESETCONTROL 0xf7 /* Watchdog reset control */ 168#define SM_RESETCONTROL 0xf7 /* Watchdog reset control */
165 /* Bit 6: timer is reset by kbd interrupt */ 169 /* Bit 6: timer is reset by kbd interrupt */
166 /* Bit 7: timer is reset by mouse interrupt */ 170 /* Bit 7: timer is reset by mouse interrupt */
167 171
168static void supermicro_new_unlock_watchdog(void) 172static void supermicro_new_unlock_watchdog(void)
169{ 173{
170 outb(SM_WATCHPAGE, SM_REGINDEX); /* Write 0x87 to port 0x2e twice */ 174 /* Write 0x87 to port 0x2e twice */
171 outb(SM_WATCHPAGE, SM_REGINDEX); 175 outb(SM_WATCHPAGE, SM_REGINDEX);
172 176 outb(SM_WATCHPAGE, SM_REGINDEX);
173 outb(SM_CTLPAGESW, SM_REGINDEX); /* Switch to watchdog control page */ 177 /* Switch to watchdog control page */
178 outb(SM_CTLPAGESW, SM_REGINDEX);
174 outb(SM_CTLPAGE, SM_DATAIO); 179 outb(SM_CTLPAGE, SM_DATAIO);
175} 180}
176 181
@@ -192,7 +197,7 @@ static void supermicro_new_pre_start(unsigned int heartbeat)
192 outb(val, SM_DATAIO); 197 outb(val, SM_DATAIO);
193 198
194 /* Write heartbeat interval to WDOG */ 199 /* Write heartbeat interval to WDOG */
195 outb (SM_WATCHTIMER, SM_REGINDEX); 200 outb(SM_WATCHTIMER, SM_REGINDEX);
196 outb((heartbeat & 255), SM_DATAIO); 201 outb((heartbeat & 255), SM_DATAIO);
197 202
198 /* Make sure keyboard/mouse interrupts don't interfere */ 203 /* Make sure keyboard/mouse interrupts don't interfere */
@@ -277,7 +282,7 @@ EXPORT_SYMBOL(iTCO_vendor_pre_set_heartbeat);
277 282
278int iTCO_vendor_check_noreboot_on(void) 283int iTCO_vendor_check_noreboot_on(void)
279{ 284{
280 switch(vendorsupport) { 285 switch (vendorsupport) {
281 case SUPERMICRO_OLD_BOARD: 286 case SUPERMICRO_OLD_BOARD:
282 return 0; 287 return 0;
283 default: 288 default:
@@ -288,13 +293,13 @@ EXPORT_SYMBOL(iTCO_vendor_check_noreboot_on);
288 293
289static int __init iTCO_vendor_init_module(void) 294static int __init iTCO_vendor_init_module(void)
290{ 295{
291 printk (KERN_INFO PFX "vendor-support=%d\n", vendorsupport); 296 printk(KERN_INFO PFX "vendor-support=%d\n", vendorsupport);
292 return 0; 297 return 0;
293} 298}
294 299
295static void __exit iTCO_vendor_exit_module(void) 300static void __exit iTCO_vendor_exit_module(void)
296{ 301{
297 printk (KERN_INFO PFX "Module Unloaded\n"); 302 printk(KERN_INFO PFX "Module Unloaded\n");
298} 303}
299 304
300module_init(iTCO_vendor_init_module); 305module_init(iTCO_vendor_init_module);