forked from Minki/linux
8cc7236148
The Sound Blaster X-Fi driver supports Creative solutions based on 20K1 and 20K2 chipsets. Supported hardware : Creative Sound Blaster X-Fi Titanium Fatal1ty® Champion Series Creative Sound Blaster X-Fi Titanium Fatal1ty Professional Series Creative Sound Blaster X-Fi Titanium Professional Audio Creative Sound Blaster X-Fi Titanium Creative Sound Blaster X-Fi Elite Pro Creative Sound Blaster X-Fi Platinum Creative Sound Blaster X-Fi Fatal1ty Creative Sound Blaster X-Fi XtremeGamer Creative Sound Blaster X-Fi XtremeMusic Current release features: * ALSA PCM Playback * ALSA Record * ALSA Mixer Note: * External I/O modules detection not included. Signed-off-by: Wai Yew CHAY <wychay@ctl.creative.com> Singed-off-by: Ryan RICHARDS <ryan_richards@creativelabs.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
109 lines
1.9 KiB
C
109 lines
1.9 KiB
C
/**
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* Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
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*
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* This source file is released under GPL v2 license (no other versions).
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* See the COPYING file included in the main directory of this source
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* distribution for the license terms and conditions.
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*
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* @File cthardware.c
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*
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* @Brief
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* This file contains the implementation of hardware access methord.
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*
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* @Author Liu Chun
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* @Date Jun 26 2008
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*
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*/
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#include "cthardware.h"
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#include "cthw20k1.h"
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#include "cthw20k2.h"
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#include <linux/bug.h>
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static enum CHIPTYP get_chip_type(struct hw *hw)
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{
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enum CHIPTYP type = ATCNONE;
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switch (hw->pci->device) {
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case 0x0005: /* 20k1 device */
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type = ATC20K1;
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break;
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case 0x000B: /* 20k2 device */
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type = ATC20K2;
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break;
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default:
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type = ATCNONE;
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break;
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}
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return type;
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}
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int create_hw_obj(struct pci_dev *pci, struct hw **rhw)
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{
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int err = 0;
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switch (pci->device) {
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case 0x0005: /* 20k1 device */
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err = create_20k1_hw_obj(rhw);
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break;
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case 0x000B: /* 20k2 device */
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err = create_20k2_hw_obj(rhw);
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break;
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default:
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err = -ENODEV;
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break;
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}
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if (err)
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return err;
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(*rhw)->pci = pci;
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(*rhw)->get_chip_type = get_chip_type;
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return 0;
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}
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int destroy_hw_obj(struct hw *hw)
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{
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int err = 0;
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switch (hw->pci->device) {
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case 0x0005: /* 20k1 device */
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err = destroy_20k1_hw_obj(hw);
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break;
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case 0x000B: /* 20k2 device */
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err = destroy_20k2_hw_obj(hw);
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break;
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default:
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err = -ENODEV;
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break;
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}
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return err;
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}
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unsigned int get_field(unsigned int data, unsigned int field)
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{
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int i;
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BUG_ON(!field);
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/* @field should always be greater than 0 */
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for (i = 0; !(field & (1 << i)); )
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i++;
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return (data & field) >> i;
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}
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void set_field(unsigned int *data, unsigned int field, unsigned int value)
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{
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int i;
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BUG_ON(!field);
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/* @field should always be greater than 0 */
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for (i = 0; !(field & (1 << i)); )
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i++;
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*data = (*data & (~field)) | ((value << i) & field);
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}
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