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Revision af8f3f514d193eb353f9b6cea503c55d074e6153 authored by Hanjun Guo on 04 January 2015, 10:55:02 UTC, committed by Rafael J. Wysocki on 05 January 2015, 22:32:42 UTC 
ACPI / processor: Convert apic_id to phys_id to make it arch agnostic
 
apic_id in MADT table is the CPU hardware id which identify
it self in the system for x86 and ia64, OSPM will use it for
SMP init to map APIC ID to logical cpu number in the early
boot, when the DSDT/SSDT (ACPI namespace) is scanned later, the
ACPI processor driver is probed and the driver will use acpi_id
in DSDT to get the apic_id, then map to the logical cpu number
which is needed by the processor driver.

Before ACPI 5.0, only x86 and ia64 were supported in ACPI spec,
so apic_id is used both in arch code and ACPI core which is
pretty fine. Since ACPI 5.0, ARM is supported by ACPI and
APIC is not available on ARM, this will confuse people when
apic_id is both used by x86 and ARM in one function.

So convert apic_id to phys_id (which is the original meaning)
in ACPI processor dirver to make it arch agnostic, but leave the
arch dependent code unchanged, no functional change.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
1 parent b7392d2
Raw File
aica.h 
/* aica.h
 * Header file for ALSA driver for
 * Sega Dreamcast Yamaha AICA sound
 * Copyright Adrian McMenamin
 * <adrian@mcmen.demon.co.uk>
 * 2006
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as published by
 * the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

/* SPU memory and register constants etc */
#define G2_FIFO 0xa05f688c
#define SPU_MEMORY_BASE 0xA0800000
#define ARM_RESET_REGISTER 0xA0702C00
#define SPU_REGISTER_BASE 0xA0700000

/* AICA channels stuff */
#define AICA_CONTROL_POINT 0xA0810000
#define AICA_CONTROL_CHANNEL_SAMPLE_NUMBER 0xA0810008
#define AICA_CHANNEL0_CONTROL_OFFSET 0x10004

/* Command values */
#define AICA_CMD_KICK 0x80000000
#define AICA_CMD_NONE 0
#define AICA_CMD_START 1
#define AICA_CMD_STOP 2
#define AICA_CMD_VOL 3

/* Sound modes */
#define SM_8BIT		1
#define SM_16BIT	0
#define SM_ADPCM	2

/* Buffer and period size */
#define AICA_BUFFER_SIZE 0x8000
#define AICA_PERIOD_SIZE 0x800
#define AICA_PERIOD_NUMBER 16

#define AICA_CHANNEL0_OFFSET 0x11000
#define AICA_CHANNEL1_OFFSET 0x21000
#define CHANNEL_OFFSET 0x10000

#define AICA_DMA_CHANNEL 5
#define AICA_DMA_MODE 5

#define SND_AICA_DRIVER "AICA"

struct aica_channel {
	uint32_t cmd;		/* Command ID           */
	uint32_t pos;		/* Sample position      */
	uint32_t length;	/* Sample length        */
	uint32_t freq;		/* Frequency            */
	uint32_t vol;		/* Volume 0-255         */
	uint32_t pan;		/* Pan 0-255            */
	uint32_t sfmt;		/* Sound format         */
	uint32_t flags;		/* Bit flags            */
};

struct snd_card_aica {
	struct work_struct spu_dma_work;
	struct snd_card *card;
	struct aica_channel *channel;
	struct snd_pcm_substream *substream;
	int clicks;
	int current_period;
	struct timer_list timer;
	int master_volume;
	int dma_check;
};
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