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yaml --- r: 200603 b: refs/heads/master c: f014d93 h: refs/heads/master i: 200601: 8b8ffc9 200599: f2184c4 v: v3
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Linus Torvalds
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Jun 28, 2010
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,2 +1,2 @@ | ||
| --- | ||
| refs/heads/master: 0d98bb2656e9bd2dfda2d089db1fe1dbdab41504 | ||
| refs/heads/master: f014d937d61f47761f961eba903feb2ffa1793aa |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,88 @@ | ||
| #include <linux/ioport.h> | ||
| #include <asm/io.h> | ||
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| #include "pc873xx.h" | ||
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| static unsigned pc873xx_probelist[] = {0x398, 0x26e, 0}; | ||
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| static char *pc873xx_names[] = { | ||
| "PC87303", "PC87306", "PC87312", "PC87332", "PC87334" | ||
| }; | ||
|
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| static unsigned int base, model; | ||
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| unsigned int __init pc873xx_get_base() | ||
| { | ||
| return base; | ||
| } | ||
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| char *__init pc873xx_get_model() | ||
| { | ||
| return pc873xx_names[model]; | ||
| } | ||
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| static unsigned char __init pc873xx_read(unsigned int base, int reg) | ||
| { | ||
| outb(reg, base); | ||
| return inb(base + 1); | ||
| } | ||
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| static void __init pc873xx_write(unsigned int base, int reg, unsigned char data) | ||
| { | ||
| unsigned long flags; | ||
|
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| local_irq_save(flags); | ||
| outb(reg, base); | ||
| outb(data, base + 1); | ||
| outb(data, base + 1); /* Must be written twice */ | ||
| local_irq_restore(flags); | ||
| } | ||
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| int __init pc873xx_probe(void) | ||
| { | ||
| int val, index = 0; | ||
|
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| while ((base = pc873xx_probelist[index++])) { | ||
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| if (request_region(base, 2, "Super IO PC873xx") == NULL) | ||
| continue; | ||
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| val = pc873xx_read(base, REG_SID); | ||
| if ((val & 0xf0) == 0x10) { | ||
| model = PC87332; | ||
| break; | ||
| } else if ((val & 0xf8) == 0x70) { | ||
| model = PC87306; | ||
| break; | ||
| } else if ((val & 0xf8) == 0x50) { | ||
| model = PC87334; | ||
| break; | ||
| } else if ((val & 0xf8) == 0x40) { | ||
| model = PC87303; | ||
| break; | ||
| } | ||
|
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| release_region(base, 2); | ||
| } | ||
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| return (base == 0) ? -1 : 1; | ||
| } | ||
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| void __init pc873xx_enable_epp19(void) | ||
| { | ||
| unsigned char data; | ||
|
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| printk(KERN_INFO "PC873xx enabling EPP v1.9\n"); | ||
| data = pc873xx_read(base, REG_PCR); | ||
| pc873xx_write(base, REG_PCR, (data & 0xFC) | 0x02); | ||
| } | ||
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| void __init pc873xx_enable_ide(void) | ||
| { | ||
| unsigned char data; | ||
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| printk(KERN_INFO "PC873xx enabling IDE interrupt\n"); | ||
| data = pc873xx_read(base, REG_FER); | ||
| pc873xx_write(base, REG_FER, data | 0x40); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,35 @@ | ||
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| #ifndef _PC873xx_H_ | ||
| #define _PC873xx_H_ | ||
|
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| /* | ||
| * Control Register Values | ||
| */ | ||
| #define REG_FER 0x00 | ||
| #define REG_FAR 0x01 | ||
| #define REG_PTR 0x02 | ||
| #define REG_FCR 0x03 | ||
| #define REG_PCR 0x04 | ||
| #define REG_KRR 0x05 | ||
| #define REG_PMC 0x06 | ||
| #define REG_TUP 0x07 | ||
| #define REG_SID 0x08 | ||
| #define REG_ASC 0x09 | ||
| #define REG_IRC 0x0e | ||
|
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| /* | ||
| * Model numbers | ||
| */ | ||
| #define PC87303 0 | ||
| #define PC87306 1 | ||
| #define PC87312 2 | ||
| #define PC87332 3 | ||
| #define PC87334 4 | ||
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| int pc873xx_probe(void); | ||
| unsigned int pc873xx_get_base(void); | ||
| char *pc873xx_get_model(void); | ||
| void pc873xx_enable_epp19(void); | ||
| void pc873xx_enable_ide(void); | ||
|
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| #endif |
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