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Merge pull request #65 from mborgerson/smc_reset_support 

Support system resets via SMC.
This commit is contained in:
espes 2016-01-04 09:12:02 +02:00
parent 20264b1df8 a958ad0dbc
commit fced4f44c3
1 changed files with 13 additions and 1 deletions
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14
hw/xbox/smbus_xbox_smc.c
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@ -21,6 +21,7 @@
#include "hw/i2c/i2c.h"
#include "hw/i2c/smbus.h"
#include "qemu/config-file.h"
#include "sysemu/sysemu.h"
/*
* Hardware is a PIC16LC
@ -110,6 +111,17 @@ static void smc_write_data(SMBusDevice *dev, uint8_t cmd, uint8_t *buf, int len)
smc->version_string_index = buf[0];
break;
case SMC_REG_POWER:
if (buf[0] & (SMC_REG_POWER_RESET | SMC_REG_POWER_CYCLE))
qemu_system_reset_request();
else if (buf[0] & SMC_REG_POWER_SHUTDOWN)
qemu_system_shutdown_request();
break;
case SMC_REG_SCRATCH:
smc->scratch_reg = buf[0];
break;
/* challenge response
* (http://www.xbox-linux.org/wiki/PIC_Challenge_Handshake_Sequence) */
case 0x20:
@ -117,7 +129,6 @@ static void smc_write_data(SMBusDevice *dev, uint8_t cmd, uint8_t *buf, int len)
case 0x21:
break;
default:
break;
}
@ -135,6 +146,7 @@ static uint8_t smc_read_data(SMBusDevice *dev, uint8_t cmd, int n)
case SMC_REG_VER:
return smc_version_string[
smc->version_string_index++%(sizeof(smc_version_string)-1)];
case SMC_REG_AVPACK:
/* pretend to have a composite av pack plugged in */
return SMC_REG_AVPACK_COMPOSITE;