pmac_feature.c

这个linux源代码是很全面的~基本完整了~使用c编译的~由于时间问题我没有亲自测试~但就算用来做参考资料也是非常好的

	save_fcr[2] = MACIO_IN32(KEYLARGO_FCR2);
	save_fcr[3] = MACIO_IN32(KEYLARGO_FCR3);
	save_fcr[4] = MACIO_IN32(KEYLARGO_FCR4);

	/* Save state & config of DBDMA channels */
	dbdma_save(macio, save_dbdma);
	
	/*
	 * Turn off as much as we can
	 */
	if (macio->type == macio_pangea)
		pangea_shutdown(macio, 0);
	else if (macio->type == macio_keylargo)
		keylargo_shutdown(macio, 0);
	
	/* 
	 * Put the host bridge to sleep
	 */

	save_unin_clock_ctl = UN_IN(UNI_N_CLOCK_CNTL);
	UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl &
		~(UNI_N_CLOCK_CNTL_GMAC|UNI_N_CLOCK_CNTL_FW/*|UNI_N_CLOCK_CNTL_PCI*/));
	udelay(100);
	UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_SLEEPING);
	UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_SLEEP);

	/*
	 * FIXME: A bit of black magic with OpenPIC (don't ask me why)
	 */
	if (pmac_mb.model_id == PMAC_TYPE_SAWTOOTH) {
		MACIO_BIS(0x506e0, 0x00400000);
		MACIO_BIS(0x506e0, 0x80000000);
	}
	return 0;
}

static int __pmac
core99_wake_up(void)
{
	struct macio_chip* macio;
	int i;

	macio = &macio_chips[0];
	if (macio->type != macio_keylargo && macio->type != macio_pangea)
		return -ENODEV;

	/*
	 * Wakeup the host bridge
	 */
	UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_NORMAL);
	udelay(10);
	UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_RUNNING);
	udelay(10);
	
	/*
	 * Restore KeyLargo
	 */
	 
	MACIO_OUT32(KEYLARGO_MBCR, save_mbcr);
	(void)MACIO_IN32(KEYLARGO_MBCR); udelay(10);
	MACIO_OUT32(KEYLARGO_FCR0, save_fcr[0]);
	(void)MACIO_IN32(KEYLARGO_FCR0); udelay(10);
	MACIO_OUT32(KEYLARGO_FCR1, save_fcr[1]);
	(void)MACIO_IN32(KEYLARGO_FCR1); udelay(10);
	MACIO_OUT32(KEYLARGO_FCR2, save_fcr[2]);
	(void)MACIO_IN32(KEYLARGO_FCR2); udelay(10);
	MACIO_OUT32(KEYLARGO_FCR3, save_fcr[3]);
	(void)MACIO_IN32(KEYLARGO_FCR3); udelay(10);
	MACIO_OUT32(KEYLARGO_FCR4, save_fcr[4]);
	(void)MACIO_IN32(KEYLARGO_FCR4); udelay(10);

	dbdma_restore(macio, save_dbdma);

	MACIO_OUT32(KEYLARGO_GPIO_LEVELS0, save_gpio_levels[0]);
	MACIO_OUT32(KEYLARGO_GPIO_LEVELS1, save_gpio_levels[1]);
	for (i=0; i<KEYLARGO_GPIO_EXTINT_CNT; i++)
		MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+i, save_gpio_extint[i]);
	for (i=0; i<KEYLARGO_GPIO_CNT; i++)
		MACIO_OUT8(KEYLARGO_GPIO_0+i, save_gpio_normal[i]);

	/* FIXME more black magic with OpenPIC ... */
	if (pmac_mb.model_id == PMAC_TYPE_SAWTOOTH) {
		MACIO_BIC(0x506e0, 0x00400000);
		MACIO_BIC(0x506e0, 0x80000000);
	}

	UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl);
	udelay(100);

	return 0;
}

static int __pmac
core99_sleep_state(struct device_node* node, int param, int value)
{
	/* Param == 1 means to enter the "fake sleep" mode that is
	 * used for CPU speed switch
	 */
	if (param == 1) {
		if (value == 1) {
			UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_SLEEPING);
			UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_IDLE2);
		} else {
			UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_NORMAL);
			udelay(10);
			UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_RUNNING);
			udelay(10);
		}
		return 0;
	}
	if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
		return -EPERM;
	if (value == 1)
		return core99_sleep();
	else if (value == 0)
		return core99_wake_up();
	return 0;
}

static int __pmac
pangea_modem_enable(struct device_node* node, int param, int value)
{
	struct macio_chip*	macio;
	u8			gpio;
	unsigned long		flags;
	
	/* Hack for internal USB modem */
	if (node == NULL) {	
		if (macio_chips[0].type != macio_pangea)
			return -ENODEV;
		node = macio_chips[0].of_node;
	}
	macio = macio_find(node, 0);
	if (!macio)
		return -ENODEV;
	gpio = MACIO_IN8(KL_GPIO_MODEM_RESET);
	gpio |= KEYLARGO_GPIO_OUTPUT_ENABLE;
	gpio &= ~KEYLARGO_GPIO_OUTOUT_DATA;
	
	if (!value) {
		LOCK(flags);
		MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
		UNLOCK(flags);
		(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
		mdelay(250);
	}
    	LOCK(flags);
	if (value) {
		MACIO_OUT8(KL_GPIO_MODEM_POWER,
			KEYLARGO_GPIO_OUTPUT_ENABLE);
    		UNLOCK(flags);
	    	(void)MACIO_IN32(KEYLARGO_FCR2);
		mdelay(250);
	} else {
		MACIO_OUT8(KL_GPIO_MODEM_POWER,
			KEYLARGO_GPIO_OUTPUT_ENABLE | KEYLARGO_GPIO_OUTOUT_DATA);
    		UNLOCK(flags);
	}
	if (value) {
		LOCK(flags);
		MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
		(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
	    	UNLOCK(flags); mdelay(250); LOCK(flags);
		MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
		(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
	    	UNLOCK(flags); mdelay(250); LOCK(flags);
		MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
		(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
	    	UNLOCK(flags); mdelay(250);
	}
	return 0;
}


static int __pmac
generic_get_mb_info(struct device_node* node, int param, int value)
{
	switch(param) {
		case PMAC_MB_INFO_MODEL:
			return pmac_mb.model_id;
		case PMAC_MB_INFO_FLAGS:
			return pmac_mb.board_flags;
		case PMAC_MB_INFO_NAME:	
			/* hack hack hack... but should work */
			*((const char **)value) = pmac_mb.model_name;
			break;
	}
	return 0;
}


/* 
 * Table definitions
 */
 
/* Used on any machine
 */
static struct feature_table_entry any_features[]  __pmacdata = {
	{ PMAC_FTR_GET_MB_INFO,		generic_get_mb_info },
	{ 0, NULL }
};

/* OHare based motherboards. Currently, we only use these on the
 * 2400,3400 and 3500 series powerbooks. Some older desktops seem
 * to have issues with turning on/off those asic cells
 */
static struct feature_table_entry ohare_features[]  __pmacdata = {
	{ PMAC_FTR_SCC_ENABLE,		ohare_htw_scc_enable },
	{ PMAC_FTR_SWIM3_ENABLE,	ohare_floppy_enable },
	{ PMAC_FTR_MESH_ENABLE,		ohare_mesh_enable },
	{ PMAC_FTR_IDE_ENABLE,		ohare_ide_enable},
	{ PMAC_FTR_IDE_RESET,		ohare_ide_reset},
	{ PMAC_FTR_SLEEP_STATE,		ohare_sleep_state },
	{ 0, NULL }
};

/* Heathrow desktop machines (Beige G3).
 * Separated as some features couldn't be properly tested
 * and the serial port control bits appear to confuse it.
 */
static struct feature_table_entry heathrow_desktop_features[]  __pmacdata = {
	{ PMAC_FTR_SWIM3_ENABLE,	heathrow_floppy_enable },
	{ PMAC_FTR_MESH_ENABLE,		heathrow_mesh_enable },
	{ PMAC_FTR_IDE_ENABLE,		heathrow_ide_enable },
	{ PMAC_FTR_IDE_RESET,		heathrow_ide_reset },
	{ PMAC_FTR_BMAC_ENABLE,		heathrow_bmac_enable },
	{ 0, NULL }
};

/* Heathrow based laptop, that is the Wallstreet and mainstreet
 * powerbooks.
 */
static struct feature_table_entry heathrow_laptop_features[]  __pmacdata = {
	{ PMAC_FTR_SCC_ENABLE,		ohare_htw_scc_enable },
	{ PMAC_FTR_MODEM_ENABLE,	heathrow_modem_enable },
	{ PMAC_FTR_SWIM3_ENABLE,	heathrow_floppy_enable },
	{ PMAC_FTR_MESH_ENABLE,		heathrow_mesh_enable },
	{ PMAC_FTR_IDE_ENABLE,		heathrow_ide_enable },
	{ PMAC_FTR_IDE_RESET,		heathrow_ide_reset },
	{ PMAC_FTR_BMAC_ENABLE,		heathrow_bmac_enable },
	{ PMAC_FTR_SOUND_CHIP_ENABLE,	heathrow_sound_enable },
	{ PMAC_FTR_SLEEP_STATE,		heathrow_sleep_state },
	{ 0, NULL }
};

/* Paddington based machines
 * The lombard (101) powerbook, first iMac models, B&W G3 and Yikes G4.
 */
static struct feature_table_entry paddington_features[]  __pmacdata = {
	{ PMAC_FTR_SCC_ENABLE,		ohare_htw_scc_enable },
	{ PMAC_FTR_MODEM_ENABLE,	heathrow_modem_enable },
	{ PMAC_FTR_SWIM3_ENABLE,	heathrow_floppy_enable },
	{ PMAC_FTR_MESH_ENABLE,		heathrow_mesh_enable },
	{ PMAC_FTR_IDE_ENABLE,		heathrow_ide_enable },
	{ PMAC_FTR_IDE_RESET,		heathrow_ide_reset },
	{ PMAC_FTR_BMAC_ENABLE,		heathrow_bmac_enable },
	{ PMAC_FTR_SOUND_CHIP_ENABLE,	heathrow_sound_enable },
	{ PMAC_FTR_SLEEP_STATE,		heathrow_sleep_state },
	{ 0, NULL }
};

/* Core99 & MacRISC 2 machines (all machines released since the
 * iBook (included), that is all AGP machines, except pangea
 * chipset. The pangea chipset is the "combo" UniNorth/KeyLargo
 * used on iBook2 & iMac "flow power".
 */
static struct feature_table_entry core99_features[]  __pmacdata = {
	{ PMAC_FTR_SCC_ENABLE,		core99_scc_enable },
	{ PMAC_FTR_MODEM_ENABLE,	core99_modem_enable },
	{ PMAC_FTR_IDE_ENABLE,		core99_ide_enable },
	{ PMAC_FTR_IDE_RESET,		core99_ide_reset },
	{ PMAC_FTR_GMAC_ENABLE,		core99_gmac_enable },
	{ PMAC_FTR_GMAC_PHY_RESET,	core99_gmac_phy_reset },
	{ PMAC_FTR_SOUND_CHIP_ENABLE,	core99_sound_chip_enable },
	{ PMAC_FTR_AIRPORT_ENABLE,	core99_airport_enable },
	{ PMAC_FTR_USB_ENABLE,		core99_usb_enable },
	{ PMAC_FTR_1394_ENABLE,		core99_firewire_enable },
	{ PMAC_FTR_1394_CABLE_POWER,	core99_firewire_cable_power },
	{ PMAC_FTR_SLEEP_STATE,		core99_sleep_state },
#ifdef CONFIG_SMP
	{ PMAC_FTR_RESET_CPU,		core99_reset_cpu },
#endif /* CONFIG_SMP */
	{ PMAC_FTR_READ_GPIO,		core99_read_gpio },
	{ PMAC_FTR_WRITE_GPIO,		core99_write_gpio },
	{ 0, NULL }
};

/* RackMac
 */
static struct feature_table_entry rackmac_features[]  __pmacdata = {
	{ PMAC_FTR_SCC_ENABLE,		core99_scc_enable },
	{ PMAC_FTR_IDE_ENABLE,		core99_ide_enable },
	{ PMAC_FTR_IDE_RESET,		core99_ide_reset },
	{ PMAC_FTR_GMAC_ENABLE,		core99_gmac_enable },
	{ PMAC_FTR_GMAC_PHY_RESET,	core99_gmac_phy_reset },
	{ PMAC_FTR_USB_ENABLE,		core99_usb_enable },
	{ PMAC_FTR_1394_ENABLE,		core99_firewire_enable },
	{ PMAC_FTR_1394_CABLE_POWER,	core99_firewire_cable_power },
	{ PMAC_FTR_SLEEP_STATE,		core99_sleep_state },
#ifdef CONFIG_SMP
	{ PMAC_FTR_RESET_CPU,		rackmac_reset_cpu },
#endif /* CONFIG_SMP */
	{ PMAC_FTR_READ_GPIO,		core99_read_gpio },
	{ PMAC_FTR_WRITE_GPIO,		core99_write_gpio },
	{ 0, NULL }
};

/* Pangea features
 */
static struct feature_table_entry pangea_features[]  __pmacdata = {
	{ PMAC_FTR_SCC_ENABLE,		core99_scc_enable },
	{ PMAC_FTR_MODEM_ENABLE,	pangea_modem_enable },
	{ PMAC_FTR_IDE_ENABLE,		core99_ide_enable },
	{ PMAC_FTR_IDE_RESET,		core99_ide_reset },
	{ PMAC_FTR_GMAC_ENABLE,		core99_gmac_enable },
	{ PMAC_FTR_GMAC_PHY_RESET,	core99_gmac_phy_reset },
	{ PMAC_FTR_SOUND_CHIP_ENABLE,	core99_sound_chip_enable },
	{ PMAC_FTR_AIRPORT_ENABLE,	core99_airport_enable },
	{ PMAC_FTR_USB_ENABLE,		core99_usb_enable },
	{ PMAC_FTR_1394_ENABLE,		core99_firewire_enable },
	{ PMAC_FTR_1394_CABLE_POWER,	core99_firewire_cable_power },
	{ PMAC_FTR_SLEEP_STATE,		core99_sleep_state },
	{ PMAC_FTR_READ_GPIO,		core99_read_gpio },
	{ PMAC_FTR_WRITE_GPIO,		core99_write_gpio },
	{ 0, NULL }
};
	
static struct pmac_mb_def pmac_mb_defs[] __pmacdata = {
	/* Warning: ordering is important as some models may claim
	 * beeing compatible with several types
	 */
	{	"AAPL,8500",			"PowerMac 8500/8600",
		PMAC_TYPE_PSURGE,		NULL,
		0
	},
	{	"AAPL,9500",			"PowerMac 9500/9600",
		PMAC_TYPE_PSURGE,		NULL,
		0
	},
	{	"AAPL,7500",			"PowerMac 7500",
		PMAC_TYPE_PSURGE,		NULL,
		0
	},
	{	"AAPL,ShinerESB",		"Apple Network Server",
		PMAC_TYPE_ANS,			NULL,
		0
	},
	{	"AAPL,e407",			"Alchemy",
		PMAC_TYPE_ALCHEMY,		NULL,
		0
	},
	{	"AAPL,e411",			"Gazelle",
		PMAC_TYPE_GAZELLE,		NULL,
		0
	},
	{	"AAPL,3400/2400",		"PowerBook 3400",
		PMAC_TYPE_HOOPER,		ohare_features,
		PMAC_MB_CAN_SLEEP
	},
	{	"AAPL,3500",			"PowerBook 3500",
		PMAC_TYPE_KANGA,		ohare_features,
		PMAC_MB_CAN_SLEEP
	},
	{	"AAPL,Gossamer",		"PowerMac G3 (Gossamer)",
		PMAC_TYPE_GOSSAMER,		heathrow_desktop_features,
		0
	},
	{	"AAPL,PowerMac G3",		"PowerMac G3 (Silk)",
		PMAC_TYPE_SILK,			heathrow_desktop_features,
		0
	},
	{	"AAPL,PowerBook1998",		"PowerBook Wallstreet",
		PMAC_TYPE_WALLSTREET,		heathrow_laptop_features,
		PMAC_MB_CAN_SLEEP
	},
	{	"PowerBook1,1",			"PowerBook 101 (Lombard)",
		PMAC_TYPE_101_PBOOK,		paddington_features,
		PMAC_MB_CAN_SLEEP
	},
	{	"iMac,1",			"iMac (first generation)",
		PMAC_TYPE_ORIG_IMAC,		paddington_features,
		0
	},
	{	"PowerMac4,1",			"iMac \"Flower Power\"",
		PMAC_TYPE_PANGEA_IMAC,		pangea_features,
		PMAC_MB_CAN_SLEEP
	},
	{	"PowerBook4,3",			"iBook 2 rev. 2",
		PMAC_TYPE_IBOOK2,		pangea_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_HAS_FW_POWER
	},
	{	"PowerBook4,2",			"iBook 2",
		PMAC_TYPE_IBOOK2,		pangea_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_HAS_FW_POWER
	},
	{	"PowerBook4,1",			"iBook 2",
		PMAC_TYPE_IBOOK2,		pangea_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_HAS_FW_POWER
	},
	{	"PowerMac4,4",			"eMac",
		PMAC_TYPE_EMAC,			core99_features,
		PMAC_MB_CAN_SLEEP
	},
	{	"PowerMac4,2",			"Flat panel iMac",
		PMAC_TYPE_FLAT_PANEL_IMAC,	pangea_features,
		PMAC_MB_CAN_SLEEP
	},
	{	"PowerMac1,1",			"Blue&White G3",
		PMAC_TYPE_YOSEMITE,		paddington_features,
		0
	},
	{	"PowerMac1,2",			"PowerMac G4 PCI Graphics",
		PMAC_TYPE_YIKES,		paddington_features,
		0
	},
	{	"PowerBook2,1",			"iBook (first generation)",
		PMAC_TYPE_ORIG_IBOOK,		core99_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_OLD_CORE99
	},
	{	"PowerMac3,1",			"PowerMac G4 AGP Graphics",
		PMAC_TYPE_SAWTOOTH,		core99_features,
		PMAC_MB_OLD_CORE99
	},
	{	"PowerMac3,2",			"PowerMac G4 AGP Graphics",
		PMAC_TYPE_SAWTOOTH,		core99_features,
		PMAC_MB_OLD_CORE99
	},
	{	"PowerMac3,3",			"PowerMac G4 AGP Graphics",
		PMAC_TYPE_SAWTOOTH,		core99_features,
		PMAC_MB_OLD_CORE99
	},
	{	"PowerMac2,1",			"iMac FireWire",
		PMAC_TYPE_FW_IMAC,		core99_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_OLD_CORE99
	},
	{	"PowerMac2,2",			"iMac FireWire",
		PMAC_TYPE_FW_IMAC,		core99_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_OLD_CORE99
	},
	{	"PowerBook2,2",			"iBook FireWire",
		PMAC_TYPE_FW_IBOOK,		core99_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_OLD_CORE99
	},
	{	"PowerMac5,1",			"PowerMac G4 Cube",
		PMAC_TYPE_CUBE,			core99_features,
		PMAC_MB_OLD_CORE99
	},
	{	"PowerMac3,4",			"PowerMac G4 Silver",
		PMAC_TYPE_QUICKSILVER,		core99_features,
		0
	},
	{	"PowerMac3,5",			"PowerMac G4 Silver",
		PMAC_TYPE_QUICKSILVER,		core99_features,