58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
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#include <arch/io.h>
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static void write_index(uint16_t port_base, uint8_t reg, uint8_t value)
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{
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outb(reg, port_base);
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outb(value, port_base + 1);
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}
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static const struct {
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uint8_t index, value;
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} sequence[]= {
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/* Set FAN_CTL control register (0x14) polarity to high, and
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activate fans 1, 2 and 3. */
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{ 0x14, 0x87},
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/* set the correct sensor types 1,2 thermistor; 3 diode */
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{ 0x51, 0x1c},
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/* set the 'zero' voltage for diode type sensor */
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{ 0x5c, 0x80},
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// { 0x56, 0xe5},
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// { 0x57, 0xe5},
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{ 0x59, 0xe5},
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{ 0x5c, 0x00},
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/* fan1 (controlled by temp3) control parameters */
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/* fan off limit */
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{ 0x60, 0xff},
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/* fan start limit */
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{ 0x61, 0x14},
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/* ???? */
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// { 0x62, 0x00},
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/* start PWM */
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{ 0x63, 0x27},
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/* smooth and slope PWM */
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{ 0x64, 0x90},
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/* direct-down and interval */
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{ 0x65, 0x03},
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/* fan1 auto controlled by temp3 */
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{ 0x15, 0x82},
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/* fan2 soft controlled, max speed */
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{ 0x16, 0x7f},
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/* fan3 soft controlled, 75% speed */
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{ 0x17, 0x60},
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/* all fans enable, fan1 ctl smart */
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{ 0x13, 0x71}
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};
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#define ARRAYSIZE(x) sizeof x/sizeof *x
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/*
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* Called from superio.c
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*/
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void init_ec(uint16_t base)
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{
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int i;
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for (i=0; i<ARRAYSIZE(sequence); i++) {
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write_index(base, sequence[i].index, sequence[i].value);
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}
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}
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