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linux-next/sound/pci/ctxfi/cthw20k2.c
Amitoj Kaur Chawla d169133889 ALSA: ctxfi: Change structure initialisation to C99 style 
For readability and to allow for structure randomisation, replace the
in order struct initialisation style with explicit field style.

The Coccinelle semantic patch used to make this change is as follows:

@decl@
identifier i1,fld;
type T;
field list[n] fs;
@@

struct i1 {
 fs
 T fld;
 ...};

@@
identifier decl.i1,i2,decl.fld;
expression e;
position bad.p, bad.fix;
@@

struct i1 i2@p = { ...,
+ .fld = e
- e@fix
 ,...};

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-06-17 16:58:45 +02:00

2361 lines
52 KiB
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/**
* Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
*
* This source file is released under GPL v2 license (no other versions).
* See the COPYING file included in the main directory of this source
* distribution for the license terms and conditions.
*
* @File cthw20k2.c
*
* @Brief
* This file contains the implementation of hardware access method for 20k2.
*
* @Author Liu Chun
* @Date May 14 2008
*
*/
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/io.h>
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include "cthw20k2.h"
#include "ct20k2reg.h"
#if BITS_PER_LONG == 32
#define CT_XFI_DMA_MASK DMA_BIT_MASK(32) /* 32 bit PTE */
#else
#define CT_XFI_DMA_MASK DMA_BIT_MASK(64) /* 64 bit PTE */
#endif
struct hw20k2 {
struct hw hw;
/* for i2c */
unsigned char dev_id;
unsigned char addr_size;
unsigned char data_size;
int mic_source;
};
static u32 hw_read_20kx(struct hw *hw, u32 reg);
static void hw_write_20kx(struct hw *hw, u32 reg, u32 data);
/*
* Type definition block.
* The layout of control structures can be directly applied on 20k2 chip.
*/
/*
* SRC control block definitions.
*/
/* SRC resource control block */
#define SRCCTL_STATE 0x00000007
#define SRCCTL_BM 0x00000008
#define SRCCTL_RSR 0x00000030
#define SRCCTL_SF 0x000001C0
#define SRCCTL_WR 0x00000200
#define SRCCTL_PM 0x00000400
#define SRCCTL_ROM 0x00001800
#define SRCCTL_VO 0x00002000
#define SRCCTL_ST 0x00004000
#define SRCCTL_IE 0x00008000
#define SRCCTL_ILSZ 0x000F0000
#define SRCCTL_BP 0x00100000
#define SRCCCR_CISZ 0x000007FF
#define SRCCCR_CWA 0x001FF800
#define SRCCCR_D 0x00200000
#define SRCCCR_RS 0x01C00000
#define SRCCCR_NAL 0x3E000000
#define SRCCCR_RA 0xC0000000
#define SRCCA_CA 0x0FFFFFFF
#define SRCCA_RS 0xE0000000
#define SRCSA_SA 0x0FFFFFFF
#define SRCLA_LA 0x0FFFFFFF
/* Mixer Parameter Ring ram Low and Hight register.
* Fixed-point value in 8.24 format for parameter channel */
#define MPRLH_PITCH 0xFFFFFFFF
/* SRC resource register dirty flags */
union src_dirty {
struct {
u16 ctl:1;
u16 ccr:1;
u16 sa:1;
u16 la:1;
u16 ca:1;
u16 mpr:1;
u16 czbfs:1; /* Clear Z-Buffers */
u16 rsv:9;
} bf;
u16 data;
};
struct src_rsc_ctrl_blk {
unsigned int ctl;
unsigned int ccr;
unsigned int ca;
unsigned int sa;
unsigned int la;
unsigned int mpr;
union src_dirty dirty;
};
/* SRC manager control block */
union src_mgr_dirty {
struct {
u16 enb0:1;
u16 enb1:1;
u16 enb2:1;
u16 enb3:1;
u16 enb4:1;
u16 enb5:1;
u16 enb6:1;
u16 enb7:1;
u16 enbsa:1;
u16 rsv:7;
} bf;
u16 data;
};
struct src_mgr_ctrl_blk {
unsigned int enbsa;
unsigned int enb[8];
union src_mgr_dirty dirty;
};
/* SRCIMP manager control block */
#define SRCAIM_ARC 0x00000FFF
#define SRCAIM_NXT 0x00FF0000
#define SRCAIM_SRC 0xFF000000
struct srcimap {
unsigned int srcaim;
unsigned int idx;
};
/* SRCIMP manager register dirty flags */
union srcimp_mgr_dirty {
struct {
u16 srcimap:1;
u16 rsv:15;
} bf;
u16 data;
};
struct srcimp_mgr_ctrl_blk {
struct srcimap srcimap;
union srcimp_mgr_dirty dirty;
};
/*
* Function implementation block.
*/
static int src_get_rsc_ctrl_blk(void **rblk)
{
struct src_rsc_ctrl_blk *blk;
*rblk = NULL;
blk = kzalloc(sizeof(*blk), GFP_KERNEL);
if (!blk)
return -ENOMEM;
*rblk = blk;
return 0;
}
static int src_put_rsc_ctrl_blk(void *blk)
{
kfree(blk);
return 0;
}
static int src_set_state(void *blk, unsigned int state)
{
struct src_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->ctl, SRCCTL_STATE, state);
ctl->dirty.bf.ctl = 1;
return 0;
}
static int src_set_bm(void *blk, unsigned int bm)
{
struct src_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->ctl, SRCCTL_BM, bm);
ctl->dirty.bf.ctl = 1;
return 0;
}
static int src_set_rsr(void *blk, unsigned int rsr)
{
struct src_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->ctl, SRCCTL_RSR, rsr);
ctl->dirty.bf.ctl = 1;
return 0;
}
static int src_set_sf(void *blk, unsigned int sf)
{
struct src_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->ctl, SRCCTL_SF, sf);
ctl->dirty.bf.ctl = 1;
return 0;
}
static int src_set_wr(void *blk, unsigned int wr)
{
struct src_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->ctl, SRCCTL_WR, wr);
ctl->dirty.bf.ctl = 1;
return 0;
}
static int src_set_pm(void *blk, unsigned int pm)
{
struct src_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->ctl, SRCCTL_PM, pm);
ctl->dirty.bf.ctl = 1;
return 0;
}
static int src_set_rom(void *blk, unsigned int rom)
{
struct src_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->ctl, SRCCTL_ROM, rom);
ctl->dirty.bf.ctl = 1;
return 0;
}
static int src_set_vo(void *blk, unsigned int vo)
{
struct src_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->ctl, SRCCTL_VO, vo);
ctl->dirty.bf.ctl = 1;
return 0;
}
static int src_set_st(void *blk, unsigned int st)
{
struct src_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->ctl, SRCCTL_ST, st);
ctl->dirty.bf.ctl = 1;
return 0;
}
static int src_set_ie(void *blk, unsigned int ie)
{
struct src_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->ctl, SRCCTL_IE, ie);
ctl->dirty.bf.ctl = 1;
return 0;
}
static int src_set_ilsz(void *blk, unsigned int ilsz)
{
struct src_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->ctl, SRCCTL_ILSZ, ilsz);
ctl->dirty.bf.ctl = 1;
return 0;
}
static int src_set_bp(void *blk, unsigned int bp)
{
struct src_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->ctl, SRCCTL_BP, bp);
ctl->dirty.bf.ctl = 1;
return 0;
}
static int src_set_cisz(void *blk, unsigned int cisz)
{
struct src_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->ccr, SRCCCR_CISZ, cisz);
ctl->dirty.bf.ccr = 1;
return 0;
}
static int src_set_ca(void *blk, unsigned int ca)
{
struct src_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->ca, SRCCA_CA, ca);
ctl->dirty.bf.ca = 1;
return 0;
}
static int src_set_sa(void *blk, unsigned int sa)
{
struct src_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->sa, SRCSA_SA, sa);
ctl->dirty.bf.sa = 1;
return 0;
}
static int src_set_la(void *blk, unsigned int la)
{
struct src_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->la, SRCLA_LA, la);
ctl->dirty.bf.la = 1;
return 0;
}
static int src_set_pitch(void *blk, unsigned int pitch)
{
struct src_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->mpr, MPRLH_PITCH, pitch);
ctl->dirty.bf.mpr = 1;
return 0;
}
static int src_set_clear_zbufs(void *blk, unsigned int clear)
{
((struct src_rsc_ctrl_blk *)blk)->dirty.bf.czbfs = (clear ? 1 : 0);
return 0;
}
static int src_set_dirty(void *blk, unsigned int flags)
{
((struct src_rsc_ctrl_blk *)blk)->dirty.data = (flags & 0xffff);
return 0;
}
static int src_set_dirty_all(void *blk)
{
((struct src_rsc_ctrl_blk *)blk)->dirty.data = ~(0x0);
return 0;
}
#define AR_SLOT_SIZE 4096
#define AR_SLOT_BLOCK_SIZE 16
#define AR_PTS_PITCH 6
#define AR_PARAM_SRC_OFFSET 0x60
static unsigned int src_param_pitch_mixer(unsigned int src_idx)
{
return ((src_idx << 4) + AR_PTS_PITCH + AR_SLOT_SIZE
- AR_PARAM_SRC_OFFSET) % AR_SLOT_SIZE;
}
static int src_commit_write(struct hw *hw, unsigned int idx, void *blk)
{
struct src_rsc_ctrl_blk *ctl = blk;
int i;
if (ctl->dirty.bf.czbfs) {
/* Clear Z-Buffer registers */
for (i = 0; i < 8; i++)
hw_write_20kx(hw, SRC_UPZ+idx*0x100+i*0x4, 0);
for (i = 0; i < 4; i++)
hw_write_20kx(hw, SRC_DN0Z+idx*0x100+i*0x4, 0);
for (i = 0; i < 8; i++)
hw_write_20kx(hw, SRC_DN1Z+idx*0x100+i*0x4, 0);
ctl->dirty.bf.czbfs = 0;
}
if (ctl->dirty.bf.mpr) {
/* Take the parameter mixer resource in the same group as that
* the idx src is in for simplicity. Unlike src, all conjugate
* parameter mixer resources must be programmed for
* corresponding conjugate src resources. */
unsigned int pm_idx = src_param_pitch_mixer(idx);
hw_write_20kx(hw, MIXER_PRING_LO_HI+4*pm_idx, ctl->mpr);
hw_write_20kx(hw, MIXER_PMOPLO+8*pm_idx, 0x3);
hw_write_20kx(hw, MIXER_PMOPHI+8*pm_idx, 0x0);
ctl->dirty.bf.mpr = 0;
}
if (ctl->dirty.bf.sa) {
hw_write_20kx(hw, SRC_SA+idx*0x100, ctl->sa);
ctl->dirty.bf.sa = 0;
}
if (ctl->dirty.bf.la) {
hw_write_20kx(hw, SRC_LA+idx*0x100, ctl->la);
ctl->dirty.bf.la = 0;
}
if (ctl->dirty.bf.ca) {
hw_write_20kx(hw, SRC_CA+idx*0x100, ctl->ca);
ctl->dirty.bf.ca = 0;
}
/* Write srccf register */
hw_write_20kx(hw, SRC_CF+idx*0x100, 0x0);
if (ctl->dirty.bf.ccr) {
hw_write_20kx(hw, SRC_CCR+idx*0x100, ctl->ccr);
ctl->dirty.bf.ccr = 0;
}
if (ctl->dirty.bf.ctl) {
hw_write_20kx(hw, SRC_CTL+idx*0x100, ctl->ctl);
ctl->dirty.bf.ctl = 0;
}
return 0;
}
static int src_get_ca(struct hw *hw, unsigned int idx, void *blk)
{
struct src_rsc_ctrl_blk *ctl = blk;
ctl->ca = hw_read_20kx(hw, SRC_CA+idx*0x100);
ctl->dirty.bf.ca = 0;
return get_field(ctl->ca, SRCCA_CA);
}
static unsigned int src_get_dirty(void *blk)
{
return ((struct src_rsc_ctrl_blk *)blk)->dirty.data;
}
static unsigned int src_dirty_conj_mask(void)
{
return 0x20;
}
static int src_mgr_enbs_src(void *blk, unsigned int idx)
{
((struct src_mgr_ctrl_blk *)blk)->enbsa |= (0x1 << ((idx%128)/4));
((struct src_mgr_ctrl_blk *)blk)->dirty.bf.enbsa = 1;
((struct src_mgr_ctrl_blk *)blk)->enb[idx/32] |= (0x1 << (idx%32));
return 0;
}
static int src_mgr_enb_src(void *blk, unsigned int idx)
{
((struct src_mgr_ctrl_blk *)blk)->enb[idx/32] |= (0x1 << (idx%32));
((struct src_mgr_ctrl_blk *)blk)->dirty.data |= (0x1 << (idx/32));
return 0;
}
static int src_mgr_dsb_src(void *blk, unsigned int idx)
{
((struct src_mgr_ctrl_blk *)blk)->enb[idx/32] &= ~(0x1 << (idx%32));
((struct src_mgr_ctrl_blk *)blk)->dirty.data |= (0x1 << (idx/32));
return 0;
}
static int src_mgr_commit_write(struct hw *hw, void *blk)
{
struct src_mgr_ctrl_blk *ctl = blk;
int i;
unsigned int ret;
if (ctl->dirty.bf.enbsa) {
do {
ret = hw_read_20kx(hw, SRC_ENBSTAT);
} while (ret & 0x1);
hw_write_20kx(hw, SRC_ENBSA, ctl->enbsa);
ctl->dirty.bf.enbsa = 0;
}
for (i = 0; i < 8; i++) {
if ((ctl->dirty.data & (0x1 << i))) {
hw_write_20kx(hw, SRC_ENB+(i*0x100), ctl->enb[i]);
ctl->dirty.data &= ~(0x1 << i);
}
}
return 0;
}
static int src_mgr_get_ctrl_blk(void **rblk)
{
struct src_mgr_ctrl_blk *blk;
*rblk = NULL;
blk = kzalloc(sizeof(*blk), GFP_KERNEL);
if (!blk)
return -ENOMEM;
*rblk = blk;
return 0;
}
static int src_mgr_put_ctrl_blk(void *blk)
{
kfree(blk);
return 0;
}
static int srcimp_mgr_get_ctrl_blk(void **rblk)
{
struct srcimp_mgr_ctrl_blk *blk;
*rblk = NULL;
blk = kzalloc(sizeof(*blk), GFP_KERNEL);
if (!blk)
return -ENOMEM;
*rblk = blk;
return 0;
}
static int srcimp_mgr_put_ctrl_blk(void *blk)
{
kfree(blk);
return 0;
}
static int srcimp_mgr_set_imaparc(void *blk, unsigned int slot)
{
struct srcimp_mgr_ctrl_blk *ctl = blk;
set_field(&ctl->srcimap.srcaim, SRCAIM_ARC, slot);
ctl->dirty.bf.srcimap = 1;
return 0;
}
static int srcimp_mgr_set_imapuser(void *blk, unsigned int user)
{
struct srcimp_mgr_ctrl_blk *ctl = blk;
set_field(&ctl->srcimap.srcaim, SRCAIM_SRC, user);
ctl->dirty.bf.srcimap = 1;
return 0;
}
static int srcimp_mgr_set_imapnxt(void *blk, unsigned int next)
{
struct srcimp_mgr_ctrl_blk *ctl = blk;
set_field(&ctl->srcimap.srcaim, SRCAIM_NXT, next);
ctl->dirty.bf.srcimap = 1;
return 0;
}
static int srcimp_mgr_set_imapaddr(void *blk, unsigned int addr)
{
((struct srcimp_mgr_ctrl_blk *)blk)->srcimap.idx = addr;
((struct srcimp_mgr_ctrl_blk *)blk)->dirty.bf.srcimap = 1;
return 0;
}
static int srcimp_mgr_commit_write(struct hw *hw, void *blk)
{
struct srcimp_mgr_ctrl_blk *ctl = blk;
if (ctl->dirty.bf.srcimap) {
hw_write_20kx(hw, SRC_IMAP+ctl->srcimap.idx*0x100,
ctl->srcimap.srcaim);
ctl->dirty.bf.srcimap = 0;
}
return 0;
}
/*
* AMIXER control block definitions.
*/
#define AMOPLO_M 0x00000003
#define AMOPLO_IV 0x00000004
#define AMOPLO_X 0x0003FFF0
#define AMOPLO_Y 0xFFFC0000
#define AMOPHI_SADR 0x000000FF
#define AMOPHI_SE 0x80000000
/* AMIXER resource register dirty flags */
union amixer_dirty {
struct {
u16 amoplo:1;
u16 amophi:1;
u16 rsv:14;
} bf;
u16 data;
};
/* AMIXER resource control block */
struct amixer_rsc_ctrl_blk {
unsigned int amoplo;
unsigned int amophi;
union amixer_dirty dirty;
};
static int amixer_set_mode(void *blk, unsigned int mode)
{
struct amixer_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->amoplo, AMOPLO_M, mode);
ctl->dirty.bf.amoplo = 1;
return 0;
}
static int amixer_set_iv(void *blk, unsigned int iv)
{
struct amixer_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->amoplo, AMOPLO_IV, iv);
ctl->dirty.bf.amoplo = 1;
return 0;
}
static int amixer_set_x(void *blk, unsigned int x)
{
struct amixer_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->amoplo, AMOPLO_X, x);
ctl->dirty.bf.amoplo = 1;
return 0;
}
static int amixer_set_y(void *blk, unsigned int y)
{
struct amixer_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->amoplo, AMOPLO_Y, y);
ctl->dirty.bf.amoplo = 1;
return 0;
}
static int amixer_set_sadr(void *blk, unsigned int sadr)
{
struct amixer_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->amophi, AMOPHI_SADR, sadr);
ctl->dirty.bf.amophi = 1;
return 0;
}
static int amixer_set_se(void *blk, unsigned int se)
{
struct amixer_rsc_ctrl_blk *ctl = blk;
set_field(&ctl->amophi, AMOPHI_SE, se);
ctl->dirty.bf.amophi = 1;
return 0;
}
static int amixer_set_dirty(void *blk, unsigned int flags)
{
((struct amixer_rsc_ctrl_blk *)blk)->dirty.data = (flags & 0xffff);
return 0;
}
static int amixer_set_dirty_all(void *blk)
{
((struct amixer_rsc_ctrl_blk *)blk)->dirty.data = ~(0x0);
return 0;
}
static int amixer_commit_write(struct hw *hw, unsigned int idx, void *blk)
{
struct amixer_rsc_ctrl_blk *ctl = blk;
if (ctl->dirty.bf.amoplo || ctl->dirty.bf.amophi) {
hw_write_20kx(hw, MIXER_AMOPLO+idx*8, ctl->amoplo);
ctl->dirty.bf.amoplo = 0;
hw_write_20kx(hw, MIXER_AMOPHI+idx*8, ctl->amophi);
ctl->dirty.bf.amophi = 0;
}
return 0;
}
static int amixer_get_y(void *blk)
{
struct amixer_rsc_ctrl_blk *ctl = blk;
return get_field(ctl->amoplo, AMOPLO_Y);
}
static unsigned int amixer_get_dirty(void *blk)
{
return ((struct amixer_rsc_ctrl_blk *)blk)->dirty.data;
}
static int amixer_rsc_get_ctrl_blk(void **rblk)
{
struct amixer_rsc_ctrl_blk *blk;
*rblk = NULL;
blk = kzalloc(sizeof(*blk), GFP_KERNEL);
if (!blk)
return -ENOMEM;
*rblk = blk;
return 0;
}
static int amixer_rsc_put_ctrl_blk(void *blk)
{
kfree(blk);
return 0;
}
static int amixer_mgr_get_ctrl_blk(void **rblk)
{
*rblk = NULL;
return 0;
}
static int amixer_mgr_put_ctrl_blk(void *blk)
{
return 0;
}
/*
* DAIO control block definitions.
*/
/* Receiver Sample Rate Tracker Control register */
#define SRTCTL_SRCO 0x000000FF
#define SRTCTL_SRCM 0x0000FF00
#define SRTCTL_RSR 0x00030000
#define SRTCTL_DRAT 0x00300000
#define SRTCTL_EC 0x01000000
#define SRTCTL_ET 0x10000000
/* DAIO Receiver register dirty flags */
union dai_dirty {
struct {
u16 srt:1;
u16 rsv:15;
} bf;
u16 data;
};
/* DAIO Receiver control block */
struct dai_ctrl_blk {
unsigned int srt;
union dai_dirty dirty;
};
/* Audio Input Mapper RAM */
#define AIM_ARC 0x00000FFF
#define AIM_NXT 0x007F0000
struct daoimap {
unsigned int aim;
unsigned int idx;
};
/* Audio Transmitter Control and Status register */
#define ATXCTL_EN 0x00000001
#define ATXCTL_MODE 0x00000010
#define ATXCTL_CD 0x00000020
#define ATXCTL_RAW 0x00000100
#define ATXCTL_MT 0x00000200
#define ATXCTL_NUC 0x00003000
#define ATXCTL_BEN 0x00010000
#define ATXCTL_BMUX 0x00700000
#define ATXCTL_B24 0x01000000
#define ATXCTL_CPF 0x02000000
#define ATXCTL_RIV 0x10000000
#define ATXCTL_LIV 0x20000000
#define ATXCTL_RSAT 0x40000000
#define ATXCTL_LSAT 0x80000000
/* XDIF Transmitter register dirty flags */
union dao_dirty {
struct {
u16 atxcsl:1;
u16 rsv:15;
} bf;
u16 data;
};
/* XDIF Transmitter control block */
struct dao_ctrl_blk {
/* XDIF Transmitter Channel Status Low Register */
unsigned int atxcsl;
union dao_dirty dirty;
};
/* Audio Receiver Control register */
#define ARXCTL_EN 0x00000001
/* DAIO manager register dirty flags */
union daio_mgr_dirty {
struct {
u32 atxctl:8;
u32 arxctl:8;
u32 daoimap:1;
u32 rsv:15;
} bf;
u32 data;
};
/* DAIO manager control block */
struct daio_mgr_ctrl_blk {
struct daoimap daoimap;
unsigned int txctl[8];
unsigned int rxctl[8];
union daio_mgr_dirty dirty;
};
static int dai_srt_set_srco(void *blk, unsigned int src)
{
struct dai_ctrl_blk *ctl = blk;
set_field(&ctl->srt, SRTCTL_SRCO, src);
ctl->dirty.bf.srt = 1;
return 0;
}
static int dai_srt_set_srcm(void *blk, unsigned int src)
{
struct dai_ctrl_blk *ctl = blk;
set_field(&ctl->srt, SRTCTL_SRCM, src);
ctl->dirty.bf.srt = 1;
return 0;
}
static int dai_srt_set_rsr(void *blk, unsigned int rsr)
{
struct dai_ctrl_blk *ctl = blk;
set_field(&ctl->srt, SRTCTL_RSR, rsr);
ctl->dirty.bf.srt = 1;
return 0;
}
static int dai_srt_set_drat(void *blk, unsigned int drat)
{
struct dai_ctrl_blk *ctl = blk;
set_field(&ctl->srt, SRTCTL_DRAT, drat);
ctl->dirty.bf.srt = 1;
return 0;
}
static int dai_srt_set_ec(void *blk, unsigned int ec)
{
struct dai_ctrl_blk *ctl = blk;
set_field(&ctl->srt, SRTCTL_EC, ec ? 1 : 0);
ctl->dirty.bf.srt = 1;
return 0;
}
static int dai_srt_set_et(void *blk, unsigned int et)
{
struct dai_ctrl_blk *ctl = blk;
set_field(&ctl->srt, SRTCTL_ET, et ? 1 : 0);
ctl->dirty.bf.srt = 1;
return 0;
}
static int dai_commit_write(struct hw *hw, unsigned int idx, void *blk)
{
struct dai_ctrl_blk *ctl = blk;
if (ctl->dirty.bf.srt) {
hw_write_20kx(hw, AUDIO_IO_RX_SRT_CTL+0x40*idx, ctl->srt);
ctl->dirty.bf.srt = 0;
}
return 0;
}
static int dai_get_ctrl_blk(void **rblk)
{
struct dai_ctrl_blk *blk;
*rblk = NULL;
blk = kzalloc(sizeof(*blk), GFP_KERNEL);
if (!blk)
return -ENOMEM;
*rblk = blk;
return 0;
}
static int dai_put_ctrl_blk(void *blk)
{
kfree(blk);
return 0;
}
static int dao_set_spos(void *blk, unsigned int spos)
{
((struct dao_ctrl_blk *)blk)->atxcsl = spos;
((struct dao_ctrl_blk *)blk)->dirty.bf.atxcsl = 1;
return 0;
}
static int dao_commit_write(struct hw *hw, unsigned int idx, void *blk)
{
struct dao_ctrl_blk *ctl = blk;
if (ctl->dirty.bf.atxcsl) {
if (idx < 4) {
/* S/PDIF SPOSx */
hw_write_20kx(hw, AUDIO_IO_TX_CSTAT_L+0x40*idx,
ctl->atxcsl);
}
ctl->dirty.bf.atxcsl = 0;
}
return 0;
}
static int dao_get_spos(void *blk, unsigned int *spos)
{
*spos = ((struct dao_ctrl_blk *)blk)->atxcsl;
return 0;
}
static int dao_get_ctrl_blk(void **rblk)
{
struct dao_ctrl_blk *blk;
*rblk = NULL;
blk = kzalloc(sizeof(*blk), GFP_KERNEL);
if (!blk)
return -ENOMEM;
*rblk = blk;
return 0;
}
static int dao_put_ctrl_blk(void *blk)
{
kfree(blk);
return 0;
}
static int daio_mgr_enb_dai(void *blk, unsigned int idx)
{
struct daio_mgr_ctrl_blk *ctl = blk;
set_field(&ctl->rxctl[idx], ARXCTL_EN, 1);
ctl->dirty.bf.arxctl |= (0x1 << idx);
return 0;
}
static int daio_mgr_dsb_dai(void *blk, unsigned int idx)
{
struct daio_mgr_ctrl_blk *ctl = blk;
set_field(&ctl->rxctl[idx], ARXCTL_EN, 0);
ctl->dirty.bf.arxctl |= (0x1 << idx);
return 0;
}
static int daio_mgr_enb_dao(void *blk, unsigned int idx)
{
struct daio_mgr_ctrl_blk *ctl = blk;
set_field(&ctl->txctl[idx], ATXCTL_EN, 1);
ctl->dirty.bf.atxctl |= (0x1 << idx);
return 0;
}
static int daio_mgr_dsb_dao(void *blk, unsigned int idx)
{
struct daio_mgr_ctrl_blk *ctl = blk;
set_field(&ctl->txctl[idx], ATXCTL_EN, 0);
ctl->dirty.bf.atxctl |= (0x1 << idx);
return 0;
}
static int daio_mgr_dao_init(void *blk, unsigned int idx, unsigned int conf)
{
struct daio_mgr_ctrl_blk *ctl = blk;
if (idx < 4) {
/* S/PDIF output */
switch ((conf & 0x7)) {
case 1:
set_field(&ctl->txctl[idx], ATXCTL_NUC, 0);
break;
case 2:
set_field(&ctl->txctl[idx], ATXCTL_NUC, 1);
break;
case 4:
set_field(&ctl->txctl[idx], ATXCTL_NUC, 2);
break;
case 8:
set_field(&ctl->txctl[idx], ATXCTL_NUC, 3);
break;
default:
break;
}
/* CDIF */
set_field(&ctl->txctl[idx], ATXCTL_CD, (!(conf & 0x7)));
/* Non-audio */
set_field(&ctl->txctl[idx], ATXCTL_LIV, (conf >> 4) & 0x1);
/* Non-audio */
set_field(&ctl->txctl[idx], ATXCTL_RIV, (conf >> 4) & 0x1);
set_field(&ctl->txctl[idx], ATXCTL_RAW,
((conf >> 3) & 0x1) ? 0 : 0);
ctl->dirty.bf.atxctl |= (0x1 << idx);
} else {
/* I2S output */
/*idx %= 4; */
}
return 0;
}
static int daio_mgr_set_imaparc(void *blk, unsigned int slot)
{
struct daio_mgr_ctrl_blk *ctl = blk;
set_field(&ctl->daoimap.aim, AIM_ARC, slot);
ctl->dirty.bf.daoimap = 1;
return 0;
}
static int daio_mgr_set_imapnxt(void *blk, unsigned int next)
{
struct daio_mgr_ctrl_blk *ctl = blk;
set_field(&ctl->daoimap.aim, AIM_NXT, next);
ctl->dirty.bf.daoimap = 1;
return 0;
}
static int daio_mgr_set_imapaddr(void *blk, unsigned int addr)
{
((struct daio_mgr_ctrl_blk *)blk)->daoimap.idx = addr;
((struct daio_mgr_ctrl_blk *)blk)->dirty.bf.daoimap = 1;
return 0;
}
static int daio_mgr_commit_write(struct hw *hw, void *blk)
{
struct daio_mgr_ctrl_blk *ctl = blk;
unsigned int data;
int i;
for (i = 0; i < 8; i++) {
if ((ctl->dirty.bf.atxctl & (0x1 << i))) {
data = ctl->txctl[i];
hw_write_20kx(hw, (AUDIO_IO_TX_CTL+(0x40*i)), data);
ctl->dirty.bf.atxctl &= ~(0x1 << i);
mdelay(1);
}
if ((ctl->dirty.bf.arxctl & (0x1 << i))) {
data = ctl->rxctl[i];
hw_write_20kx(hw, (AUDIO_IO_RX_CTL+(0x40*i)), data);
ctl->dirty.bf.arxctl &= ~(0x1 << i);
mdelay(1);
}
}
if (ctl->dirty.bf.daoimap) {
hw_write_20kx(hw, AUDIO_IO_AIM+ctl->daoimap.idx*4,
ctl->daoimap.aim);
ctl->dirty.bf.daoimap = 0;
}
return 0;
}
static int daio_mgr_get_ctrl_blk(struct hw *hw, void **rblk)
{
struct daio_mgr_ctrl_blk *blk;
int i;
*rblk = NULL;
blk = kzalloc(sizeof(*blk), GFP_KERNEL);
if (!blk)
return -ENOMEM;
for (i = 0; i < 8; i++) {
blk->txctl[i] = hw_read_20kx(hw, AUDIO_IO_TX_CTL+(0x40*i));
blk->rxctl[i] = hw_read_20kx(hw, AUDIO_IO_RX_CTL+(0x40*i));
}
*rblk = blk;
return 0;
}
static int daio_mgr_put_ctrl_blk(void *blk)
{
kfree(blk);
return 0;
}
/* Timer interrupt */
static int set_timer_irq(struct hw *hw, int enable)
{
hw_write_20kx(hw, GIE, enable ? IT_INT : 0);
return 0;
}
static int set_timer_tick(struct hw *hw, unsigned int ticks)
{
if (ticks)
ticks |= TIMR_IE | TIMR_IP;
hw_write_20kx(hw, TIMR, ticks);
return 0;
}
static unsigned int get_wc(struct hw *hw)
{
return hw_read_20kx(hw, WC);
}
/* Card hardware initialization block */
struct dac_conf {
unsigned int msr; /* master sample rate in rsrs */
};
struct adc_conf {
unsigned int msr; /* master sample rate in rsrs */
unsigned char input; /* the input source of ADC */
unsigned char mic20db; /* boost mic by 20db if input is microphone */
};
struct daio_conf {
unsigned int msr; /* master sample rate in rsrs */
};
struct trn_conf {
unsigned long vm_pgt_phys;
};
static int hw_daio_init(struct hw *hw, const struct daio_conf *info)
{
u32 data;
int i;
/* Program I2S with proper sample rate and enable the correct I2S
* channel. ED(0/8/16/24): Enable all I2S/I2X master clock output */
if (1 == info->msr) {
hw_write_20kx(hw, AUDIO_IO_MCLK, 0x01010101);
hw_write_20kx(hw, AUDIO_IO_TX_BLRCLK, 0x01010101);
hw_write_20kx(hw, AUDIO_IO_RX_BLRCLK, 0);
} else if (2 == info->msr) {
if (hw->model != CTSB1270) {
hw_write_20kx(hw, AUDIO_IO_MCLK, 0x11111111);
} else {
/* PCM4220 on Titanium HD is different. */
hw_write_20kx(hw, AUDIO_IO_MCLK, 0x11011111);
}
/* Specify all playing 96khz
* EA [0] - Enabled
* RTA [4:5] - 96kHz
* EB [8] - Enabled
* RTB [12:13] - 96kHz
* EC [16] - Enabled
* RTC [20:21] - 96kHz
* ED [24] - Enabled
* RTD [28:29] - 96kHz */
hw_write_20kx(hw, AUDIO_IO_TX_BLRCLK, 0x11111111);
hw_write_20kx(hw, AUDIO_IO_RX_BLRCLK, 0);
} else if ((4 == info->msr) && (hw->model == CTSB1270)) {
hw_write_20kx(hw, AUDIO_IO_MCLK, 0x21011111);
hw_write_20kx(hw, AUDIO_IO_TX_BLRCLK, 0x21212121);
hw_write_20kx(hw, AUDIO_IO_RX_BLRCLK, 0);
} else {
dev_alert(hw->card->dev,
"ERROR!!! Invalid sampling rate!!!\n");
return -EINVAL;
}
for (i = 0; i < 8; i++) {
if (i <= 3) {
/* This comment looks wrong since loop is over 4 */
/* channels and emu20k2 supports 4 spdif IOs. */
/* 1st 3 channels are SPDIFs (SB0960) */
if (i == 3)
data = 0x1001001;
else
data = 0x1000001;
hw_write_20kx(hw, (AUDIO_IO_TX_CTL+(0x40*i)), data);
hw_write_20kx(hw, (AUDIO_IO_RX_CTL+(0x40*i)), data);
/* Initialize the SPDIF Out Channel status registers.
* The value specified here is based on the typical
* values provided in the specification, namely: Clock
* Accuracy of 1000ppm, Sample Rate of 48KHz,
* unspecified source number, Generation status = 1,
* Category code = 0x12 (Digital Signal Mixer),
* Mode = 0, Emph = 0, Copy Permitted, AN = 0
* (indicating that we're transmitting digital audio,
* and the Professional Use bit is 0. */
hw_write_20kx(hw, AUDIO_IO_TX_CSTAT_L+(0x40*i),
0x02109204); /* Default to 48kHz */
hw_write_20kx(hw, AUDIO_IO_TX_CSTAT_H+(0x40*i), 0x0B);
} else {
/* Again, loop is over 4 channels not 5. */
/* Next 5 channels are I2S (SB0960) */
data = 0x11;
hw_write_20kx(hw, AUDIO_IO_RX_CTL+(0x40*i), data);
if (2 == info->msr) {
/* Four channels per sample period */
data |= 0x1000;
} else if (4 == info->msr) {
/* FIXME: check this against the chip spec */
data |= 0x2000;
}
hw_write_20kx(hw, AUDIO_IO_TX_CTL+(0x40*i), data);
}
}
return 0;
}
/* TRANSPORT operations */
static int hw_trn_init(struct hw *hw, const struct trn_conf *info)
{
u32 vmctl, data;
u32 ptp_phys_low, ptp_phys_high;
int i;
/* Set up device page table */
if ((~0UL) == info->vm_pgt_phys) {
dev_alert(hw->card->dev,
"Wrong device page table page address!!!\n");
return -1;
}
vmctl = 0x80000C0F; /* 32-bit, 4k-size page */
ptp_phys_low = (u32)info->vm_pgt_phys;
ptp_phys_high = upper_32_bits(info->vm_pgt_phys);
if (sizeof(void *) == 8) /* 64bit address */
vmctl |= (3 << 8);
/* Write page table physical address to all PTPAL registers */
for (i = 0; i < 64; i++) {
hw_write_20kx(hw, VMEM_PTPAL+(16*i), ptp_phys_low);
hw_write_20kx(hw, VMEM_PTPAH+(16*i), ptp_phys_high);
}
/* Enable virtual memory transfer */
hw_write_20kx(hw, VMEM_CTL, vmctl);
/* Enable transport bus master and queueing of request */
hw_write_20kx(hw, TRANSPORT_CTL, 0x03);
hw_write_20kx(hw, TRANSPORT_INT, 0x200c01);
/* Enable transport ring */
data = hw_read_20kx(hw, TRANSPORT_ENB);
hw_write_20kx(hw, TRANSPORT_ENB, (data | 0x03));
return 0;
}
/* Card initialization */
#define GCTL_AIE 0x00000001
#define GCTL_UAA 0x00000002
#define GCTL_DPC 0x00000004
#define GCTL_DBP 0x00000008
#define GCTL_ABP 0x00000010
#define GCTL_TBP 0x00000020
#define GCTL_SBP 0x00000040
#define GCTL_FBP 0x00000080
#define GCTL_ME 0x00000100
#define GCTL_AID 0x00001000
#define PLLCTL_SRC 0x00000007
#define PLLCTL_SPE 0x00000008
#define PLLCTL_RD 0x000000F0
#define PLLCTL_FD 0x0001FF00
#define PLLCTL_OD 0x00060000
#define PLLCTL_B 0x00080000
#define PLLCTL_AS 0x00100000
#define PLLCTL_LF 0x03E00000
#define PLLCTL_SPS 0x1C000000
#define PLLCTL_AD 0x60000000
#define PLLSTAT_CCS 0x00000007
#define PLLSTAT_SPL 0x00000008
#define PLLSTAT_CRD 0x000000F0
#define PLLSTAT_CFD 0x0001FF00
#define PLLSTAT_SL 0x00020000
#define PLLSTAT_FAS 0x00040000
#define PLLSTAT_B 0x00080000
#define PLLSTAT_PD 0x00100000
#define PLLSTAT_OCA 0x00200000
#define PLLSTAT_NCA 0x00400000
static int hw_pll_init(struct hw *hw, unsigned int rsr)
{
unsigned int pllenb;
unsigned int pllctl;
unsigned int pllstat;
int i;
pllenb = 0xB;
hw_write_20kx(hw, PLL_ENB, pllenb);
pllctl = 0x20C00000;
set_field(&pllctl, PLLCTL_B, 0);
set_field(&pllctl, PLLCTL_FD, 48000 == rsr ? 16 - 4 : 147 - 4);
set_field(&pllctl, PLLCTL_RD, 48000 == rsr ? 1 - 1 : 10 - 1);
hw_write_20kx(hw, PLL_CTL, pllctl);
mdelay(40);
pllctl = hw_read_20kx(hw, PLL_CTL);
set_field(&pllctl, PLLCTL_FD, 48000 == rsr ? 16 - 2 : 147 - 2);
hw_write_20kx(hw, PLL_CTL, pllctl);
mdelay(40);
for (i = 0; i < 1000; i++) {
pllstat = hw_read_20kx(hw, PLL_STAT);
if (get_field(pllstat, PLLSTAT_PD))
continue;
if (get_field(pllstat, PLLSTAT_B) !=
get_field(pllctl, PLLCTL_B))
continue;
if (get_field(pllstat, PLLSTAT_CCS) !=
get_field(pllctl, PLLCTL_SRC))
continue;
if (get_field(pllstat, PLLSTAT_CRD) !=
get_field(pllctl, PLLCTL_RD))
continue;
if (get_field(pllstat, PLLSTAT_CFD) !=
get_field(pllctl, PLLCTL_FD))
continue;
break;
}
if (i >= 1000) {
dev_alert(hw->card->dev,
"PLL initialization failed!!!\n");
return -EBUSY;
}
return 0;
}
static int hw_auto_init(struct hw *hw)
{
unsigned int gctl;
int i;
gctl = hw_read_20kx(hw, GLOBAL_CNTL_GCTL);
set_field(&gctl, GCTL_AIE, 0);
hw_write_20kx(hw, GLOBAL_CNTL_GCTL, gctl);
set_field(&gctl, GCTL_AIE, 1);
hw_write_20kx(hw, GLOBAL_CNTL_GCTL, gctl);
mdelay(10);
for (i = 0; i < 400000; i++) {
gctl = hw_read_20kx(hw, GLOBAL_CNTL_GCTL);
if (get_field(gctl, GCTL_AID))
break;
}
if (!get_field(gctl, GCTL_AID)) {
dev_alert(hw->card->dev, "Card Auto-init failed!!!\n");
return -EBUSY;
}
return 0;
}
/* DAC operations */
#define CS4382_MC1 0x1
#define CS4382_MC2 0x2
#define CS4382_MC3 0x3
#define CS4382_FC 0x4
#define CS4382_IC 0x5
#define CS4382_XC1 0x6
#define CS4382_VCA1 0x7
#define CS4382_VCB1 0x8
#define CS4382_XC2 0x9
#define CS4382_VCA2 0xA
#define CS4382_VCB2 0xB
#define CS4382_XC3 0xC
#define CS4382_VCA3 0xD
#define CS4382_VCB3 0xE
#define CS4382_XC4 0xF
#define CS4382_VCA4 0x10
#define CS4382_VCB4 0x11
#define CS4382_CREV 0x12
/* I2C status */
#define STATE_LOCKED 0x00
#define STATE_UNLOCKED 0xAA
#define DATA_READY 0x800000 /* Used with I2C_IF_STATUS */
#define DATA_ABORT 0x10000 /* Used with I2C_IF_STATUS */
#define I2C_STATUS_DCM 0x00000001
#define I2C_STATUS_BC 0x00000006
#define I2C_STATUS_APD 0x00000008
#define I2C_STATUS_AB 0x00010000
#define I2C_STATUS_DR 0x00800000
#define I2C_ADDRESS_PTAD 0x0000FFFF
#define I2C_ADDRESS_SLAD 0x007F0000
struct regs_cs4382 {
u32 mode_control_1;
u32 mode_control_2;
u32 mode_control_3;
u32 filter_control;
u32 invert_control;
u32 mix_control_P1;
u32 vol_control_A1;
u32 vol_control_B1;
u32 mix_control_P2;
u32 vol_control_A2;
u32 vol_control_B2;
u32 mix_control_P3;
u32 vol_control_A3;
u32 vol_control_B3;
u32 mix_control_P4;
u32 vol_control_A4;
u32 vol_control_B4;
};
static int hw20k2_i2c_unlock_full_access(struct hw *hw)
{
u8 UnlockKeySequence_FLASH_FULLACCESS_MODE[2] = {0xB3, 0xD4};
/* Send keys for forced BIOS mode */
hw_write_20kx(hw, I2C_IF_WLOCK,
UnlockKeySequence_FLASH_FULLACCESS_MODE[0]);
hw_write_20kx(hw, I2C_IF_WLOCK,
UnlockKeySequence_FLASH_FULLACCESS_MODE[1]);
/* Check whether the chip is unlocked */
if (hw_read_20kx(hw, I2C_IF_WLOCK) == STATE_UNLOCKED)
return 0;
return -1;
}
static int hw20k2_i2c_lock_chip(struct hw *hw)
{
/* Write twice */
hw_write_20kx(hw, I2C_IF_WLOCK, STATE_LOCKED);
hw_write_20kx(hw, I2C_IF_WLOCK, STATE_LOCKED);
if (hw_read_20kx(hw, I2C_IF_WLOCK) == STATE_LOCKED)
return 0;
return -1;
}
static int hw20k2_i2c_init(struct hw *hw, u8 dev_id, u8 addr_size, u8 data_size)
{
struct hw20k2 *hw20k2 = (struct hw20k2 *)hw;
int err;
unsigned int i2c_status;
unsigned int i2c_addr;
err = hw20k2_i2c_unlock_full_access(hw);
if (err < 0)
return err;
hw20k2->addr_size = addr_size;
hw20k2->data_size = data_size;
hw20k2->dev_id = dev_id;
i2c_addr = 0;
set_field(&i2c_addr, I2C_ADDRESS_SLAD, dev_id);
hw_write_20kx(hw, I2C_IF_ADDRESS, i2c_addr);
i2c_status = hw_read_20kx(hw, I2C_IF_STATUS);
set_field(&i2c_status, I2C_STATUS_DCM, 1); /* Direct control mode */
hw_write_20kx(hw, I2C_IF_STATUS, i2c_status);
return 0;
}
static int hw20k2_i2c_uninit(struct hw *hw)
{
unsigned int i2c_status;
unsigned int i2c_addr;
i2c_addr = 0;
set_field(&i2c_addr, I2C_ADDRESS_SLAD, 0x57); /* I2C id */
hw_write_20kx(hw, I2C_IF_ADDRESS, i2c_addr);
i2c_status = hw_read_20kx(hw, I2C_IF_STATUS);
set_field(&i2c_status, I2C_STATUS_DCM, 0); /* I2C mode */
hw_write_20kx(hw, I2C_IF_STATUS, i2c_status);
return hw20k2_i2c_lock_chip(hw);
}
static int hw20k2_i2c_wait_data_ready(struct hw *hw)
{
int i = 0x400000;
unsigned int ret;
do {
ret = hw_read_20kx(hw, I2C_IF_STATUS);
} while ((!(ret & DATA_READY)) && --i);
return i;
}
static int hw20k2_i2c_read(struct hw *hw, u16 addr, u32 *datap)
{
struct hw20k2 *hw20k2 = (struct hw20k2 *)hw;
unsigned int i2c_status;
i2c_status = hw_read_20kx(hw, I2C_IF_STATUS);
set_field(&i2c_status, I2C_STATUS_BC,
(4 == hw20k2->addr_size) ? 0 : hw20k2->addr_size);
hw_write_20kx(hw, I2C_IF_STATUS, i2c_status);
if (!hw20k2_i2c_wait_data_ready(hw))
return -1;
hw_write_20kx(hw, I2C_IF_WDATA, addr);
if (!hw20k2_i2c_wait_data_ready(hw))
return -1;
/* Force a read operation */
hw_write_20kx(hw, I2C_IF_RDATA, 0);
if (!hw20k2_i2c_wait_data_ready(hw))
return -1;
*datap = hw_read_20kx(hw, I2C_IF_RDATA);
return 0;
}
static int hw20k2_i2c_write(struct hw *hw, u16 addr, u32 data)
{
struct hw20k2 *hw20k2 = (struct hw20k2 *)hw;
unsigned int i2c_data = (data << (hw20k2->addr_size * 8)) | addr;
unsigned int i2c_status;
i2c_status = hw_read_20kx(hw, I2C_IF_STATUS);
set_field(&i2c_status, I2C_STATUS_BC,
(4 == (hw20k2->addr_size + hw20k2->data_size)) ?
0 : (hw20k2->addr_size + hw20k2->data_size));
hw_write_20kx(hw, I2C_IF_STATUS, i2c_status);
hw20k2_i2c_wait_data_ready(hw);
/* Dummy write to trigger the write operation */
hw_write_20kx(hw, I2C_IF_WDATA, 0);
hw20k2_i2c_wait_data_ready(hw);
/* This is the real data */
hw_write_20kx(hw, I2C_IF_WDATA, i2c_data);
hw20k2_i2c_wait_data_ready(hw);
return 0;
}
static void hw_dac_stop(struct hw *hw)
{
u32 data;
data = hw_read_20kx(hw, GPIO_DATA);
data &= 0xFFFFFFFD;
hw_write_20kx(hw, GPIO_DATA, data);
mdelay(10);
}
static void hw_dac_start(struct hw *hw)
{
u32 data;
data = hw_read_20kx(hw, GPIO_DATA);
data |= 0x2;
hw_write_20kx(hw, GPIO_DATA, data);
mdelay(50);
}
static void hw_dac_reset(struct hw *hw)
{
hw_dac_stop(hw);
hw_dac_start(hw);
}
static int hw_dac_init(struct hw *hw, const struct dac_conf *info)
{
int err;
u32 data;
int i;
struct regs_cs4382 cs_read = {0};
struct regs_cs4382 cs_def = {
.mode_control_1 = 0x00000001, /* Mode Control 1 */
.mode_control_2 = 0x00000000, /* Mode Control 2 */
.mode_control_3 = 0x00000084, /* Mode Control 3 */
.filter_control = 0x00000000, /* Filter Control */
.invert_control = 0x00000000, /* Invert Control */
.mix_control_P1 = 0x00000024, /* Mixing Control Pair 1 */
.vol_control_A1 = 0x00000000, /* Vol Control A1 */
.vol_control_B1 = 0x00000000, /* Vol Control B1 */
.mix_control_P2 = 0x00000024, /* Mixing Control Pair 2 */
.vol_control_A2 = 0x00000000, /* Vol Control A2 */
.vol_control_B2 = 0x00000000, /* Vol Control B2 */
.mix_control_P3 = 0x00000024, /* Mixing Control Pair 3 */
.vol_control_A3 = 0x00000000, /* Vol Control A3 */
.vol_control_B3 = 0x00000000, /* Vol Control B3 */
.mix_control_P4 = 0x00000024, /* Mixing Control Pair 4 */
.vol_control_A4 = 0x00000000, /* Vol Control A4 */
.vol_control_B4 = 0x00000000 /* Vol Control B4 */
};
if (hw->model == CTSB1270) {
hw_dac_stop(hw);
data = hw_read_20kx(hw, GPIO_DATA);
data &= ~0x0600;
if (1 == info->msr)
data |= 0x0000; /* Single Speed Mode 0-50kHz */
else if (2 == info->msr)
data |= 0x0200; /* Double Speed Mode 50-100kHz */
else
data |= 0x0600; /* Quad Speed Mode 100-200kHz */
hw_write_20kx(hw, GPIO_DATA, data);
hw_dac_start(hw);
return 0;
}
/* Set DAC reset bit as output */
data = hw_read_20kx(hw, GPIO_CTRL);
data |= 0x02;
hw_write_20kx(hw, GPIO_CTRL, data);
err = hw20k2_i2c_init(hw, 0x18, 1, 1);
if (err < 0)
goto End;
for (i = 0; i < 2; i++) {
/* Reset DAC twice just in-case the chip
* didn't initialized properly */
hw_dac_reset(hw);
hw_dac_reset(hw);
if (hw20k2_i2c_read(hw, CS4382_MC1, &cs_read.mode_control_1))
continue;
if (hw20k2_i2c_read(hw, CS4382_MC2, &cs_read.mode_control_2))
continue;
if (hw20k2_i2c_read(hw, CS4382_MC3, &cs_read.mode_control_3))
continue;
if (hw20k2_i2c_read(hw, CS4382_FC, &cs_read.filter_control))
continue;
if (hw20k2_i2c_read(hw, CS4382_IC, &cs_read.invert_control))
continue;
if (hw20k2_i2c_read(hw, CS4382_XC1, &cs_read.mix_control_P1))
continue;
if (hw20k2_i2c_read(hw, CS4382_VCA1, &cs_read.vol_control_A1))
continue;
if (hw20k2_i2c_read(hw, CS4382_VCB1, &cs_read.vol_control_B1))
continue;
if (hw20k2_i2c_read(hw, CS4382_XC2, &cs_read.mix_control_P2))
continue;
if (hw20k2_i2c_read(hw, CS4382_VCA2, &cs_read.vol_control_A2))
continue;
if (hw20k2_i2c_read(hw, CS4382_VCB2, &cs_read.vol_control_B2))
continue;
if (hw20k2_i2c_read(hw, CS4382_XC3, &cs_read.mix_control_P3))
continue;
if (hw20k2_i2c_read(hw, CS4382_VCA3, &cs_read.vol_control_A3))
continue;
if (hw20k2_i2c_read(hw, CS4382_VCB3, &cs_read.vol_control_B3))
continue;
if (hw20k2_i2c_read(hw, CS4382_XC4, &cs_read.mix_control_P4))
continue;
if (hw20k2_i2c_read(hw, CS4382_VCA4, &cs_read.vol_control_A4))
continue;
if (hw20k2_i2c_read(hw, CS4382_VCB4, &cs_read.vol_control_B4))
continue;
if (memcmp(&cs_read, &cs_def, sizeof(cs_read)))
continue;
else
break;
}
if (i >= 2)
goto End;
/* Note: Every I2C write must have some delay.
* This is not a requirement but the delay works here... */
hw20k2_i2c_write(hw, CS4382_MC1, 0x80);
hw20k2_i2c_write(hw, CS4382_MC2, 0x10);
if (1 == info->msr) {
hw20k2_i2c_write(hw, CS4382_XC1, 0x24);
hw20k2_i2c_write(hw, CS4382_XC2, 0x24);
hw20k2_i2c_write(hw, CS4382_XC3, 0x24);
hw20k2_i2c_write(hw, CS4382_XC4, 0x24);
} else if (2 == info->msr) {
hw20k2_i2c_write(hw, CS4382_XC1, 0x25);
hw20k2_i2c_write(hw, CS4382_XC2, 0x25);
hw20k2_i2c_write(hw, CS4382_XC3, 0x25);
hw20k2_i2c_write(hw, CS4382_XC4, 0x25);
} else {
hw20k2_i2c_write(hw, CS4382_XC1, 0x26);
hw20k2_i2c_write(hw, CS4382_XC2, 0x26);
hw20k2_i2c_write(hw, CS4382_XC3, 0x26);
hw20k2_i2c_write(hw, CS4382_XC4, 0x26);
}
return 0;
End:
hw20k2_i2c_uninit(hw);
return -1;
}
/* ADC operations */
#define MAKE_WM8775_ADDR(addr, data) (u32)(((addr<<1)&0xFE)|((data>>8)&0x1))
#define MAKE_WM8775_DATA(data) (u32)(data&0xFF)
#define WM8775_IC 0x0B
#define WM8775_MMC 0x0C
#define WM8775_AADCL 0x0E
#define WM8775_AADCR 0x0F
#define WM8775_ADCMC 0x15
#define WM8775_RESET 0x17
static int hw_is_adc_input_selected(struct hw *hw, enum ADCSRC type)
{
u32 data;
if (hw->model == CTSB1270) {
/* Titanium HD has two ADC chips, one for line in and one */
/* for MIC. We don't need to switch the ADC input. */
return 1;
}
data = hw_read_20kx(hw, GPIO_DATA);
switch (type) {
case ADC_MICIN:
data = (data & (0x1 << 14)) ? 1 : 0;
break;
case ADC_LINEIN:
data = (data & (0x1 << 14)) ? 0 : 1;
break;
default:
data = 0;
}
return data;
}
#define MIC_BOOST_0DB 0xCF
#define MIC_BOOST_STEPS_PER_DB 2
static void hw_wm8775_input_select(struct hw *hw, u8 input, s8 gain_in_db)
{
u32 adcmc, gain;
if (input > 3)
input = 3;
adcmc = ((u32)1 << input) | 0x100; /* Link L+R gain... */
hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_ADCMC, adcmc),
MAKE_WM8775_DATA(adcmc));
if (gain_in_db < -103)
gain_in_db = -103;
if (gain_in_db > 24)
gain_in_db = 24;
gain = gain_in_db * MIC_BOOST_STEPS_PER_DB + MIC_BOOST_0DB;
hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCL, gain),
MAKE_WM8775_DATA(gain));
/* ...so there should be no need for the following. */
hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCR, gain),
MAKE_WM8775_DATA(gain));
}
static int hw_adc_input_select(struct hw *hw, enum ADCSRC type)
{
u32 data;
data = hw_read_20kx(hw, GPIO_DATA);
switch (type) {
case ADC_MICIN:
data |= (0x1 << 14);
hw_write_20kx(hw, GPIO_DATA, data);
hw_wm8775_input_select(hw, 0, 20); /* Mic, 20dB */
break;
case ADC_LINEIN:
data &= ~(0x1 << 14);
hw_write_20kx(hw, GPIO_DATA, data);
hw_wm8775_input_select(hw, 1, 0); /* Line-in, 0dB */
break;
default:
break;
}
return 0;
}
static int hw_adc_init(struct hw *hw, const struct adc_conf *info)
{
int err;
u32 data, ctl;
/* Set ADC reset bit as output */
data = hw_read_20kx(hw, GPIO_CTRL);
data |= (0x1 << 15);
hw_write_20kx(hw, GPIO_CTRL, data);
/* Initialize I2C */
err = hw20k2_i2c_init(hw, 0x1A, 1, 1);
if (err < 0) {
dev_alert(hw->card->dev, "Failure to acquire I2C!!!\n");
goto error;
}
/* Reset the ADC (reset is active low). */
data = hw_read_20kx(hw, GPIO_DATA);
data &= ~(0x1 << 15);
hw_write_20kx(hw, GPIO_DATA, data);
if (hw->model == CTSB1270) {
/* Set up the PCM4220 ADC on Titanium HD */
data &= ~0x0C;
if (1 == info->msr)
data |= 0x00; /* Single Speed Mode 32-50kHz */
else if (2 == info->msr)
data |= 0x08; /* Double Speed Mode 50-108kHz */
else
data |= 0x04; /* Quad Speed Mode 108kHz-216kHz */
hw_write_20kx(hw, GPIO_DATA, data);
}
mdelay(10);
/* Return the ADC to normal operation. */
data |= (0x1 << 15);
hw_write_20kx(hw, GPIO_DATA, data);
mdelay(50);
/* I2C write to register offset 0x0B to set ADC LRCLK polarity */
/* invert bit, interface format to I2S, word length to 24-bit, */
/* enable ADC high pass filter. Fixes bug 5323? */
hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_IC, 0x26),
MAKE_WM8775_DATA(0x26));
/* Set the master mode (256fs) */
if (1 == info->msr) {
/* slave mode, 128x oversampling 256fs */
hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_MMC, 0x02),
MAKE_WM8775_DATA(0x02));
} else if ((2 == info->msr) || (4 == info->msr)) {
/* slave mode, 64x oversampling, 256fs */
hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_MMC, 0x0A),
MAKE_WM8775_DATA(0x0A));
} else {
dev_alert(hw->card->dev,
"Invalid master sampling rate (msr %d)!!!\n",
info->msr);
err = -EINVAL;
goto error;
}
if (hw->model != CTSB1270) {
/* Configure GPIO bit 14 change to line-in/mic-in */
ctl = hw_read_20kx(hw, GPIO_CTRL);
ctl |= 0x1 << 14;
hw_write_20kx(hw, GPIO_CTRL, ctl);
hw_adc_input_select(hw, ADC_LINEIN);
} else {
hw_wm8775_input_select(hw, 0, 0);
}
return 0;
error:
hw20k2_i2c_uninit(hw);
return err;
}
static struct capabilities hw_capabilities(struct hw *hw)
{
struct capabilities cap;
cap.digit_io_switch = 0;
cap.dedicated_mic = hw->model == CTSB1270;
cap.output_switch = hw->model == CTSB1270;
cap.mic_source_switch = hw->model == CTSB1270;
return cap;
}
static int hw_output_switch_get(struct hw *hw)
{
u32 data = hw_read_20kx(hw, GPIO_EXT_DATA);
switch (data & 0x30) {
case 0x00:
return 0;
case 0x10:
return 1;
case 0x20:
return 2;
default:
return 3;
}
}
static int hw_output_switch_put(struct hw *hw, int position)
{
u32 data;
if (position == hw_output_switch_get(hw))
return 0;
/* Mute line and headphones (intended for anti-pop). */
data = hw_read_20kx(hw, GPIO_DATA);
data |= (0x03 << 11);
hw_write_20kx(hw, GPIO_DATA, data);
data = hw_read_20kx(hw, GPIO_EXT_DATA) & ~0x30;
switch (position) {
case 0:
break;
case 1:
data |= 0x10;
break;
default:
data |= 0x20;
}
hw_write_20kx(hw, GPIO_EXT_DATA, data);
/* Unmute line and headphones. */
data = hw_read_20kx(hw, GPIO_DATA);
data &= ~(0x03 << 11);
hw_write_20kx(hw, GPIO_DATA, data);
return 1;
}
static int hw_mic_source_switch_get(struct hw *hw)
{
struct hw20k2 *hw20k2 = (struct hw20k2 *)hw;
return hw20k2->mic_source;
}
static int hw_mic_source_switch_put(struct hw *hw, int position)
{
struct hw20k2 *hw20k2 = (struct hw20k2 *)hw;
if (position == hw20k2->mic_source)
return 0;
switch (position) {
case 0:
hw_wm8775_input_select(hw, 0, 0); /* Mic, 0dB */
break;
case 1:
hw_wm8775_input_select(hw, 1, 0); /* FP Mic, 0dB */
break;
case 2:
hw_wm8775_input_select(hw, 3, 0); /* Aux Ext, 0dB */
break;
default:
return 0;
}
hw20k2->mic_source = position;
return 1;
}
static irqreturn_t ct_20k2_interrupt(int irq, void *dev_id)
{
struct hw *hw = dev_id;
unsigned int status;
status = hw_read_20kx(hw, GIP);
if (!status)
return IRQ_NONE;
if (hw->irq_callback)
hw->irq_callback(hw->irq_callback_data, status);
hw_write_20kx(hw, GIP, status);
return IRQ_HANDLED;
}
static int hw_card_start(struct hw *hw)
{
int err = 0;
struct pci_dev *pci = hw->pci;
unsigned int gctl;
err = pci_enable_device(pci);
if (err < 0)
return err;
/* Set DMA transfer mask */
if (dma_set_mask(&pci->dev, CT_XFI_DMA_MASK) < 0 ||
dma_set_coherent_mask(&pci->dev, CT_XFI_DMA_MASK) < 0) {
dev_err(hw->card->dev,
"architecture does not support PCI busmaster DMA with mask 0x%llx\n",
CT_XFI_DMA_MASK);
err = -ENXIO;
goto error1;
}
if (!hw->io_base) {
err = pci_request_regions(pci, "XFi");
if (err < 0)
goto error1;
hw->io_base = pci_resource_start(hw->pci, 2);
hw->mem_base = ioremap(hw->io_base,
pci_resource_len(hw->pci, 2));
if (!hw->mem_base) {
err = -ENOENT;
goto error2;
}
}
/* Switch to 20k2 mode from UAA mode. */
gctl = hw_read_20kx(hw, GLOBAL_CNTL_GCTL);
set_field(&gctl, GCTL_UAA, 0);
hw_write_20kx(hw, GLOBAL_CNTL_GCTL, gctl);
if (hw->irq < 0) {
err = request_irq(pci->irq, ct_20k2_interrupt, IRQF_SHARED,
KBUILD_MODNAME, hw);
if (err < 0) {
dev_err(hw->card->dev,
"XFi: Cannot get irq %d\n", pci->irq);
goto error2;
}
hw->irq = pci->irq;
}
pci_set_master(pci);
return 0;
/*error3:
iounmap((void *)hw->mem_base);
hw->mem_base = (unsigned long)NULL;*/
error2:
pci_release_regions(pci);
hw->io_base = 0;
error1:
pci_disable_device(pci);
return err;
}
static int hw_card_stop(struct hw *hw)
{
unsigned int data;
/* disable transport bus master and queueing of request */
hw_write_20kx(hw, TRANSPORT_CTL, 0x00);
/* disable pll */
data = hw_read_20kx(hw, PLL_ENB);
hw_write_20kx(hw, PLL_ENB, (data & (~0x07)));
/* TODO: Disable interrupt and so on... */
return 0;
}
static int hw_card_shutdown(struct hw *hw)
{
if (hw->irq >= 0)
free_irq(hw->irq, hw);
hw->irq = -1;
iounmap(hw->mem_base);
hw->mem_base = NULL;
if (hw->io_base)
pci_release_regions(hw->pci);
hw->io_base = 0;
pci_disable_device(hw->pci);
return 0;
}
static int hw_card_init(struct hw *hw, struct card_conf *info)
{
int err;
unsigned int gctl;
u32 data = 0;
struct dac_conf dac_info = {0};
struct adc_conf adc_info = {0};
struct daio_conf daio_info = {0};
struct trn_conf trn_info = {0};
/* Get PCI io port/memory base address and
* do 20kx core switch if needed. */
err = hw_card_start(hw);
if (err)
return err;
/* PLL init */
err = hw_pll_init(hw, info->rsr);
if (err < 0)
return err;
/* kick off auto-init */
err = hw_auto_init(hw);
if (err < 0)
return err;
gctl = hw_read_20kx(hw, GLOBAL_CNTL_GCTL);
set_field(&gctl, GCTL_DBP, 1);
set_field(&gctl, GCTL_TBP, 1);
set_field(&gctl, GCTL_FBP, 1);
set_field(&gctl, GCTL_DPC, 0);
hw_write_20kx(hw, GLOBAL_CNTL_GCTL, gctl);
/* Reset all global pending interrupts */
hw_write_20kx(hw, GIE, 0);
/* Reset all SRC pending interrupts */
hw_write_20kx(hw, SRC_IP, 0);
if (hw->model != CTSB1270) {
/* TODO: detect the card ID and configure GPIO accordingly. */
/* Configures GPIO (0xD802 0x98028) */
/*hw_write_20kx(hw, GPIO_CTRL, 0x7F07);*/
/* Configures GPIO (SB0880) */
/*hw_write_20kx(hw, GPIO_CTRL, 0xFF07);*/
hw_write_20kx(hw, GPIO_CTRL, 0xD802);
} else {
hw_write_20kx(hw, GPIO_CTRL, 0x9E5F);
}
/* Enable audio ring */
hw_write_20kx(hw, MIXER_AR_ENABLE, 0x01);
trn_info.vm_pgt_phys = info->vm_pgt_phys;
err = hw_trn_init(hw, &trn_info);
if (err < 0)
return err;
daio_info.msr = info->msr;
err = hw_daio_init(hw, &daio_info);
if (err < 0)
return err;
dac_info.msr = info->msr;
err = hw_dac_init(hw, &dac_info);
if (err < 0)
return err;
adc_info.msr = info->msr;
adc_info.input = ADC_LINEIN;
adc_info.mic20db = 0;
err = hw_adc_init(hw, &adc_info);
if (err < 0)
return err;
data = hw_read_20kx(hw, SRC_MCTL);
data |= 0x1; /* Enables input from the audio ring */
hw_write_20kx(hw, SRC_MCTL, data);
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int hw_suspend(struct hw *hw)
{
hw_card_stop(hw);
return 0;
}
static int hw_resume(struct hw *hw, struct card_conf *info)
{
/* Re-initialize card hardware. */
return hw_card_init(hw, info);
}
#endif
static u32 hw_read_20kx(struct hw *hw, u32 reg)
{
return readl(hw->mem_base + reg);
}
static void hw_write_20kx(struct hw *hw, u32 reg, u32 data)
{
writel(data, hw->mem_base + reg);
}
static struct hw ct20k2_preset = {
.irq = -1,
.card_init = hw_card_init,
.card_stop = hw_card_stop,
.pll_init = hw_pll_init,
.is_adc_source_selected = hw_is_adc_input_selected,
.select_adc_source = hw_adc_input_select,
.capabilities = hw_capabilities,
.output_switch_get = hw_output_switch_get,
.output_switch_put = hw_output_switch_put,
.mic_source_switch_get = hw_mic_source_switch_get,
.mic_source_switch_put = hw_mic_source_switch_put,
#ifdef CONFIG_PM_SLEEP
.suspend = hw_suspend,
.resume = hw_resume,
#endif
.src_rsc_get_ctrl_blk = src_get_rsc_ctrl_blk,
.src_rsc_put_ctrl_blk = src_put_rsc_ctrl_blk,
.src_mgr_get_ctrl_blk = src_mgr_get_ctrl_blk,
.src_mgr_put_ctrl_blk = src_mgr_put_ctrl_blk,
.src_set_state = src_set_state,
.src_set_bm = src_set_bm,
.src_set_rsr = src_set_rsr,
.src_set_sf = src_set_sf,
.src_set_wr = src_set_wr,
.src_set_pm = src_set_pm,
.src_set_rom = src_set_rom,
.src_set_vo = src_set_vo,
.src_set_st = src_set_st,
.src_set_ie = src_set_ie,
.src_set_ilsz = src_set_ilsz,
.src_set_bp = src_set_bp,
.src_set_cisz = src_set_cisz,
.src_set_ca = src_set_ca,
.src_set_sa = src_set_sa,
.src_set_la = src_set_la,
.src_set_pitch = src_set_pitch,
.src_set_dirty = src_set_dirty,
.src_set_clear_zbufs = src_set_clear_zbufs,
.src_set_dirty_all = src_set_dirty_all,
.src_commit_write = src_commit_write,
.src_get_ca = src_get_ca,
.src_get_dirty = src_get_dirty,
.src_dirty_conj_mask = src_dirty_conj_mask,
.src_mgr_enbs_src = src_mgr_enbs_src,
.src_mgr_enb_src = src_mgr_enb_src,
.src_mgr_dsb_src = src_mgr_dsb_src,
.src_mgr_commit_write = src_mgr_commit_write,
.srcimp_mgr_get_ctrl_blk = srcimp_mgr_get_ctrl_blk,
.srcimp_mgr_put_ctrl_blk = srcimp_mgr_put_ctrl_blk,
.srcimp_mgr_set_imaparc = srcimp_mgr_set_imaparc,
.srcimp_mgr_set_imapuser = srcimp_mgr_set_imapuser,
.srcimp_mgr_set_imapnxt = srcimp_mgr_set_imapnxt,
.srcimp_mgr_set_imapaddr = srcimp_mgr_set_imapaddr,
.srcimp_mgr_commit_write = srcimp_mgr_commit_write,
.amixer_rsc_get_ctrl_blk = amixer_rsc_get_ctrl_blk,
.amixer_rsc_put_ctrl_blk = amixer_rsc_put_ctrl_blk,
.amixer_mgr_get_ctrl_blk = amixer_mgr_get_ctrl_blk,
.amixer_mgr_put_ctrl_blk = amixer_mgr_put_ctrl_blk,
.amixer_set_mode = amixer_set_mode,
.amixer_set_iv = amixer_set_iv,
.amixer_set_x = amixer_set_x,
.amixer_set_y = amixer_set_y,
.amixer_set_sadr = amixer_set_sadr,
.amixer_set_se = amixer_set_se,
.amixer_set_dirty = amixer_set_dirty,
.amixer_set_dirty_all = amixer_set_dirty_all,
.amixer_commit_write = amixer_commit_write,
.amixer_get_y = amixer_get_y,
.amixer_get_dirty = amixer_get_dirty,
.dai_get_ctrl_blk = dai_get_ctrl_blk,
.dai_put_ctrl_blk = dai_put_ctrl_blk,
.dai_srt_set_srco = dai_srt_set_srco,
.dai_srt_set_srcm = dai_srt_set_srcm,
.dai_srt_set_rsr = dai_srt_set_rsr,
.dai_srt_set_drat = dai_srt_set_drat,
.dai_srt_set_ec = dai_srt_set_ec,
.dai_srt_set_et = dai_srt_set_et,
.dai_commit_write = dai_commit_write,
.dao_get_ctrl_blk = dao_get_ctrl_blk,
.dao_put_ctrl_blk = dao_put_ctrl_blk,
.dao_set_spos = dao_set_spos,
.dao_commit_write = dao_commit_write,
.dao_get_spos = dao_get_spos,
.daio_mgr_get_ctrl_blk = daio_mgr_get_ctrl_blk,
.daio_mgr_put_ctrl_blk = daio_mgr_put_ctrl_blk,
.daio_mgr_enb_dai = daio_mgr_enb_dai,
.daio_mgr_dsb_dai = daio_mgr_dsb_dai,
.daio_mgr_enb_dao = daio_mgr_enb_dao,
.daio_mgr_dsb_dao = daio_mgr_dsb_dao,
.daio_mgr_dao_init = daio_mgr_dao_init,
.daio_mgr_set_imaparc = daio_mgr_set_imaparc,
.daio_mgr_set_imapnxt = daio_mgr_set_imapnxt,
.daio_mgr_set_imapaddr = daio_mgr_set_imapaddr,
.daio_mgr_commit_write = daio_mgr_commit_write,
.set_timer_irq = set_timer_irq,
.set_timer_tick = set_timer_tick,
.get_wc = get_wc,
};
int create_20k2_hw_obj(struct hw **rhw)
{
struct hw20k2 *hw20k2;
*rhw = NULL;
hw20k2 = kzalloc(sizeof(*hw20k2), GFP_KERNEL);
if (!hw20k2)
return -ENOMEM;
hw20k2->hw = ct20k2_preset;
*rhw = &hw20k2->hw;
return 0;
}
int destroy_20k2_hw_obj(struct hw *hw)
{
if (hw->io_base)
hw_card_shutdown(hw);
kfree(hw);
return 0;
}
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