763 строки
17 KiB
C
763 строки
17 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 ctdaio.c
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*
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* @Brief
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* This file contains the implementation of Digital Audio Input Output
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* resource management object.
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*
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* @Author Liu Chun
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* @Date May 23 2008
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*
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*/
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#include "ctdaio.h"
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#include "cthardware.h"
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#include "ctimap.h"
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#include <linux/slab.h>
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#include <linux/kernel.h>
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#define DAIO_OUT_MAX SPDIFOO
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struct daio_usage {
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unsigned short data;
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};
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struct daio_rsc_idx {
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unsigned short left;
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unsigned short right;
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};
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struct daio_rsc_idx idx_20k1[NUM_DAIOTYP] = {
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[LINEO1] = {.left = 0x00, .right = 0x01},
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[LINEO2] = {.left = 0x18, .right = 0x19},
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[LINEO3] = {.left = 0x08, .right = 0x09},
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[LINEO4] = {.left = 0x10, .right = 0x11},
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[LINEIM] = {.left = 0x1b5, .right = 0x1bd},
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[SPDIFOO] = {.left = 0x20, .right = 0x21},
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[SPDIFIO] = {.left = 0x15, .right = 0x1d},
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[SPDIFI1] = {.left = 0x95, .right = 0x9d},
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};
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struct daio_rsc_idx idx_20k2[NUM_DAIOTYP] = {
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[LINEO1] = {.left = 0x40, .right = 0x41},
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[LINEO2] = {.left = 0x60, .right = 0x61},
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[LINEO3] = {.left = 0x50, .right = 0x51},
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[LINEO4] = {.left = 0x70, .right = 0x71},
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[LINEIM] = {.left = 0x45, .right = 0xc5},
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[MIC] = {.left = 0x55, .right = 0xd5},
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[SPDIFOO] = {.left = 0x00, .right = 0x01},
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[SPDIFIO] = {.left = 0x05, .right = 0x85},
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};
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static int daio_master(struct rsc *rsc)
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{
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/* Actually, this is not the resource index of DAIO.
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* For DAO, it is the input mapper index. And, for DAI,
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* it is the output time-slot index. */
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return rsc->conj = rsc->idx;
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}
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static int daio_index(const struct rsc *rsc)
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{
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return rsc->conj;
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}
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static int daio_out_next_conj(struct rsc *rsc)
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{
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return rsc->conj += 2;
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}
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static int daio_in_next_conj_20k1(struct rsc *rsc)
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{
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return rsc->conj += 0x200;
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}
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static int daio_in_next_conj_20k2(struct rsc *rsc)
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{
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return rsc->conj += 0x100;
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}
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static struct rsc_ops daio_out_rsc_ops = {
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.master = daio_master,
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.next_conj = daio_out_next_conj,
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.index = daio_index,
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.output_slot = NULL,
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};
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static struct rsc_ops daio_in_rsc_ops_20k1 = {
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.master = daio_master,
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.next_conj = daio_in_next_conj_20k1,
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.index = NULL,
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.output_slot = daio_index,
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};
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static struct rsc_ops daio_in_rsc_ops_20k2 = {
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.master = daio_master,
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.next_conj = daio_in_next_conj_20k2,
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.index = NULL,
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.output_slot = daio_index,
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};
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static unsigned int daio_device_index(enum DAIOTYP type, struct hw *hw)
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{
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switch (hw->chip_type) {
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case ATC20K1:
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switch (type) {
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case SPDIFOO: return 0;
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case SPDIFIO: return 0;
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case SPDIFI1: return 1;
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case LINEO1: return 4;
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case LINEO2: return 7;
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case LINEO3: return 5;
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case LINEO4: return 6;
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case LINEIM: return 7;
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default: return -EINVAL;
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}
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case ATC20K2:
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switch (type) {
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case SPDIFOO: return 0;
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case SPDIFIO: return 0;
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case LINEO1: return 4;
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case LINEO2: return 7;
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case LINEO3: return 5;
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case LINEO4: return 6;
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case LINEIM: return 4;
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case MIC: return 5;
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default: return -EINVAL;
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}
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default:
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return -EINVAL;
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}
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}
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static int dao_rsc_reinit(struct dao *dao, const struct dao_desc *desc);
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static int dao_spdif_get_spos(struct dao *dao, unsigned int *spos)
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{
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((struct hw *)dao->hw)->dao_get_spos(dao->ctrl_blk, spos);
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return 0;
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}
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static int dao_spdif_set_spos(struct dao *dao, unsigned int spos)
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{
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((struct hw *)dao->hw)->dao_set_spos(dao->ctrl_blk, spos);
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return 0;
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}
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static int dao_commit_write(struct dao *dao)
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{
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((struct hw *)dao->hw)->dao_commit_write(dao->hw,
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daio_device_index(dao->daio.type, dao->hw), dao->ctrl_blk);
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return 0;
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}
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static int dao_set_left_input(struct dao *dao, struct rsc *input)
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{
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struct imapper *entry;
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struct daio *daio = &dao->daio;
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int i;
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entry = kzalloc((sizeof(*entry) * daio->rscl.msr), GFP_KERNEL);
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if (!entry)
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return -ENOMEM;
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dao->ops->clear_left_input(dao);
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/* Program master and conjugate resources */
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input->ops->master(input);
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daio->rscl.ops->master(&daio->rscl);
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for (i = 0; i < daio->rscl.msr; i++, entry++) {
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entry->slot = input->ops->output_slot(input);
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entry->user = entry->addr = daio->rscl.ops->index(&daio->rscl);
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dao->mgr->imap_add(dao->mgr, entry);
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dao->imappers[i] = entry;
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input->ops->next_conj(input);
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daio->rscl.ops->next_conj(&daio->rscl);
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}
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input->ops->master(input);
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daio->rscl.ops->master(&daio->rscl);
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return 0;
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}
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static int dao_set_right_input(struct dao *dao, struct rsc *input)
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{
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struct imapper *entry;
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struct daio *daio = &dao->daio;
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int i;
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entry = kzalloc((sizeof(*entry) * daio->rscr.msr), GFP_KERNEL);
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if (!entry)
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return -ENOMEM;
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dao->ops->clear_right_input(dao);
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/* Program master and conjugate resources */
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input->ops->master(input);
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daio->rscr.ops->master(&daio->rscr);
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for (i = 0; i < daio->rscr.msr; i++, entry++) {
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entry->slot = input->ops->output_slot(input);
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entry->user = entry->addr = daio->rscr.ops->index(&daio->rscr);
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dao->mgr->imap_add(dao->mgr, entry);
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dao->imappers[daio->rscl.msr + i] = entry;
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input->ops->next_conj(input);
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daio->rscr.ops->next_conj(&daio->rscr);
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}
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input->ops->master(input);
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daio->rscr.ops->master(&daio->rscr);
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return 0;
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}
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static int dao_clear_left_input(struct dao *dao)
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{
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struct imapper *entry;
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struct daio *daio = &dao->daio;
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int i;
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if (!dao->imappers[0])
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return 0;
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entry = dao->imappers[0];
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dao->mgr->imap_delete(dao->mgr, entry);
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/* Program conjugate resources */
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for (i = 1; i < daio->rscl.msr; i++) {
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entry = dao->imappers[i];
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dao->mgr->imap_delete(dao->mgr, entry);
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dao->imappers[i] = NULL;
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}
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kfree(dao->imappers[0]);
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dao->imappers[0] = NULL;
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return 0;
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}
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static int dao_clear_right_input(struct dao *dao)
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{
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struct imapper *entry;
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struct daio *daio = &dao->daio;
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int i;
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if (!dao->imappers[daio->rscl.msr])
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return 0;
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entry = dao->imappers[daio->rscl.msr];
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dao->mgr->imap_delete(dao->mgr, entry);
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/* Program conjugate resources */
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for (i = 1; i < daio->rscr.msr; i++) {
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entry = dao->imappers[daio->rscl.msr + i];
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dao->mgr->imap_delete(dao->mgr, entry);
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dao->imappers[daio->rscl.msr + i] = NULL;
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}
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kfree(dao->imappers[daio->rscl.msr]);
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dao->imappers[daio->rscl.msr] = NULL;
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return 0;
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}
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static struct dao_rsc_ops dao_ops = {
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.set_spos = dao_spdif_set_spos,
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.commit_write = dao_commit_write,
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.get_spos = dao_spdif_get_spos,
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.reinit = dao_rsc_reinit,
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.set_left_input = dao_set_left_input,
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.set_right_input = dao_set_right_input,
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.clear_left_input = dao_clear_left_input,
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.clear_right_input = dao_clear_right_input,
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};
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static int dai_set_srt_srcl(struct dai *dai, struct rsc *src)
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{
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src->ops->master(src);
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((struct hw *)dai->hw)->dai_srt_set_srcm(dai->ctrl_blk,
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src->ops->index(src));
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return 0;
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}
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static int dai_set_srt_srcr(struct dai *dai, struct rsc *src)
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{
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src->ops->master(src);
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((struct hw *)dai->hw)->dai_srt_set_srco(dai->ctrl_blk,
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src->ops->index(src));
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return 0;
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}
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static int dai_set_srt_msr(struct dai *dai, unsigned int msr)
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{
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unsigned int rsr;
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for (rsr = 0; msr > 1; msr >>= 1)
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rsr++;
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((struct hw *)dai->hw)->dai_srt_set_rsr(dai->ctrl_blk, rsr);
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return 0;
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}
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static int dai_set_enb_src(struct dai *dai, unsigned int enb)
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{
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((struct hw *)dai->hw)->dai_srt_set_ec(dai->ctrl_blk, enb);
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return 0;
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}
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static int dai_set_enb_srt(struct dai *dai, unsigned int enb)
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{
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((struct hw *)dai->hw)->dai_srt_set_et(dai->ctrl_blk, enb);
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return 0;
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}
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static int dai_commit_write(struct dai *dai)
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{
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((struct hw *)dai->hw)->dai_commit_write(dai->hw,
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daio_device_index(dai->daio.type, dai->hw), dai->ctrl_blk);
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return 0;
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}
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static struct dai_rsc_ops dai_ops = {
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.set_srt_srcl = dai_set_srt_srcl,
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.set_srt_srcr = dai_set_srt_srcr,
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.set_srt_msr = dai_set_srt_msr,
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.set_enb_src = dai_set_enb_src,
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.set_enb_srt = dai_set_enb_srt,
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.commit_write = dai_commit_write,
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};
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static int daio_rsc_init(struct daio *daio,
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const struct daio_desc *desc,
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void *hw)
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{
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int err;
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unsigned int idx_l, idx_r;
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switch (((struct hw *)hw)->chip_type) {
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case ATC20K1:
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idx_l = idx_20k1[desc->type].left;
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idx_r = idx_20k1[desc->type].right;
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break;
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case ATC20K2:
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idx_l = idx_20k2[desc->type].left;
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idx_r = idx_20k2[desc->type].right;
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break;
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default:
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return -EINVAL;
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}
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err = rsc_init(&daio->rscl, idx_l, DAIO, desc->msr, hw);
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if (err)
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return err;
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err = rsc_init(&daio->rscr, idx_r, DAIO, desc->msr, hw);
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if (err)
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goto error1;
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/* Set daio->rscl/r->ops to daio specific ones */
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if (desc->type <= DAIO_OUT_MAX) {
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daio->rscl.ops = daio->rscr.ops = &daio_out_rsc_ops;
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} else {
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switch (((struct hw *)hw)->chip_type) {
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case ATC20K1:
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daio->rscl.ops = daio->rscr.ops = &daio_in_rsc_ops_20k1;
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break;
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case ATC20K2:
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daio->rscl.ops = daio->rscr.ops = &daio_in_rsc_ops_20k2;
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break;
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default:
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break;
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}
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}
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daio->type = desc->type;
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return 0;
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error1:
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rsc_uninit(&daio->rscl);
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return err;
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}
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static int daio_rsc_uninit(struct daio *daio)
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{
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rsc_uninit(&daio->rscl);
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rsc_uninit(&daio->rscr);
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return 0;
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}
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static int dao_rsc_init(struct dao *dao,
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const struct daio_desc *desc,
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struct daio_mgr *mgr)
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{
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struct hw *hw = mgr->mgr.hw;
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unsigned int conf;
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int err;
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err = daio_rsc_init(&dao->daio, desc, mgr->mgr.hw);
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if (err)
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return err;
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dao->imappers = kzalloc(sizeof(void *)*desc->msr*2, GFP_KERNEL);
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if (!dao->imappers) {
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err = -ENOMEM;
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goto error1;
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}
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dao->ops = &dao_ops;
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dao->mgr = mgr;
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dao->hw = hw;
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err = hw->dao_get_ctrl_blk(&dao->ctrl_blk);
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if (err)
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goto error2;
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hw->daio_mgr_dsb_dao(mgr->mgr.ctrl_blk,
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daio_device_index(dao->daio.type, hw));
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hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk);
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conf = (desc->msr & 0x7) | (desc->passthru << 3);
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hw->daio_mgr_dao_init(mgr->mgr.ctrl_blk,
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daio_device_index(dao->daio.type, hw), conf);
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hw->daio_mgr_enb_dao(mgr->mgr.ctrl_blk,
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daio_device_index(dao->daio.type, hw));
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hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk);
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return 0;
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error2:
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kfree(dao->imappers);
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dao->imappers = NULL;
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error1:
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daio_rsc_uninit(&dao->daio);
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return err;
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}
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static int dao_rsc_uninit(struct dao *dao)
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{
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if (dao->imappers) {
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if (dao->imappers[0])
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dao_clear_left_input(dao);
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if (dao->imappers[dao->daio.rscl.msr])
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dao_clear_right_input(dao);
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kfree(dao->imappers);
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dao->imappers = NULL;
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}
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((struct hw *)dao->hw)->dao_put_ctrl_blk(dao->ctrl_blk);
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dao->hw = dao->ctrl_blk = NULL;
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daio_rsc_uninit(&dao->daio);
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return 0;
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}
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static int dao_rsc_reinit(struct dao *dao, const struct dao_desc *desc)
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{
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struct daio_mgr *mgr = dao->mgr;
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struct daio_desc dsc = {0};
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dsc.type = dao->daio.type;
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dsc.msr = desc->msr;
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dsc.passthru = desc->passthru;
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dao_rsc_uninit(dao);
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return dao_rsc_init(dao, &dsc, mgr);
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}
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static int dai_rsc_init(struct dai *dai,
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const struct daio_desc *desc,
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struct daio_mgr *mgr)
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{
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int err;
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struct hw *hw = mgr->mgr.hw;
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unsigned int rsr, msr;
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err = daio_rsc_init(&dai->daio, desc, mgr->mgr.hw);
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if (err)
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return err;
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dai->ops = &dai_ops;
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dai->hw = mgr->mgr.hw;
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err = hw->dai_get_ctrl_blk(&dai->ctrl_blk);
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if (err)
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goto error1;
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for (rsr = 0, msr = desc->msr; msr > 1; msr >>= 1)
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rsr++;
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hw->dai_srt_set_rsr(dai->ctrl_blk, rsr);
|
|
hw->dai_srt_set_drat(dai->ctrl_blk, 0);
|
|
/* default to disabling control of a SRC */
|
|
hw->dai_srt_set_ec(dai->ctrl_blk, 0);
|
|
hw->dai_srt_set_et(dai->ctrl_blk, 0); /* default to disabling SRT */
|
|
hw->dai_commit_write(hw,
|
|
daio_device_index(dai->daio.type, dai->hw), dai->ctrl_blk);
|
|
|
|
return 0;
|
|
|
|
error1:
|
|
daio_rsc_uninit(&dai->daio);
|
|
return err;
|
|
}
|
|
|
|
static int dai_rsc_uninit(struct dai *dai)
|
|
{
|
|
((struct hw *)dai->hw)->dai_put_ctrl_blk(dai->ctrl_blk);
|
|
dai->hw = dai->ctrl_blk = NULL;
|
|
daio_rsc_uninit(&dai->daio);
|
|
return 0;
|
|
}
|
|
|
|
static int daio_mgr_get_rsc(struct rsc_mgr *mgr, enum DAIOTYP type)
|
|
{
|
|
if (((struct daio_usage *)mgr->rscs)->data & (0x1 << type))
|
|
return -ENOENT;
|
|
|
|
((struct daio_usage *)mgr->rscs)->data |= (0x1 << type);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int daio_mgr_put_rsc(struct rsc_mgr *mgr, enum DAIOTYP type)
|
|
{
|
|
((struct daio_usage *)mgr->rscs)->data &= ~(0x1 << type);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int get_daio_rsc(struct daio_mgr *mgr,
|
|
const struct daio_desc *desc,
|
|
struct daio **rdaio)
|
|
{
|
|
int err;
|
|
struct dai *dai = NULL;
|
|
struct dao *dao = NULL;
|
|
unsigned long flags;
|
|
|
|
*rdaio = NULL;
|
|
|
|
/* Check whether there are sufficient daio resources to meet request. */
|
|
spin_lock_irqsave(&mgr->mgr_lock, flags);
|
|
err = daio_mgr_get_rsc(&mgr->mgr, desc->type);
|
|
spin_unlock_irqrestore(&mgr->mgr_lock, flags);
|
|
if (err) {
|
|
printk(KERN_ERR "Can't meet DAIO resource request!\n");
|
|
return err;
|
|
}
|
|
|
|
/* Allocate mem for daio resource */
|
|
if (desc->type <= DAIO_OUT_MAX) {
|
|
dao = kzalloc(sizeof(*dao), GFP_KERNEL);
|
|
if (!dao) {
|
|
err = -ENOMEM;
|
|
goto error;
|
|
}
|
|
err = dao_rsc_init(dao, desc, mgr);
|
|
if (err)
|
|
goto error;
|
|
|
|
*rdaio = &dao->daio;
|
|
} else {
|
|
dai = kzalloc(sizeof(*dai), GFP_KERNEL);
|
|
if (!dai) {
|
|
err = -ENOMEM;
|
|
goto error;
|
|
}
|
|
err = dai_rsc_init(dai, desc, mgr);
|
|
if (err)
|
|
goto error;
|
|
|
|
*rdaio = &dai->daio;
|
|
}
|
|
|
|
mgr->daio_enable(mgr, *rdaio);
|
|
mgr->commit_write(mgr);
|
|
|
|
return 0;
|
|
|
|
error:
|
|
if (dao)
|
|
kfree(dao);
|
|
else if (dai)
|
|
kfree(dai);
|
|
|
|
spin_lock_irqsave(&mgr->mgr_lock, flags);
|
|
daio_mgr_put_rsc(&mgr->mgr, desc->type);
|
|
spin_unlock_irqrestore(&mgr->mgr_lock, flags);
|
|
return err;
|
|
}
|
|
|
|
static int put_daio_rsc(struct daio_mgr *mgr, struct daio *daio)
|
|
{
|
|
unsigned long flags;
|
|
|
|
mgr->daio_disable(mgr, daio);
|
|
mgr->commit_write(mgr);
|
|
|
|
spin_lock_irqsave(&mgr->mgr_lock, flags);
|
|
daio_mgr_put_rsc(&mgr->mgr, daio->type);
|
|
spin_unlock_irqrestore(&mgr->mgr_lock, flags);
|
|
|
|
if (daio->type <= DAIO_OUT_MAX) {
|
|
dao_rsc_uninit(container_of(daio, struct dao, daio));
|
|
kfree(container_of(daio, struct dao, daio));
|
|
} else {
|
|
dai_rsc_uninit(container_of(daio, struct dai, daio));
|
|
kfree(container_of(daio, struct dai, daio));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int daio_mgr_enb_daio(struct daio_mgr *mgr, struct daio *daio)
|
|
{
|
|
struct hw *hw = mgr->mgr.hw;
|
|
|
|
if (DAIO_OUT_MAX >= daio->type) {
|
|
hw->daio_mgr_enb_dao(mgr->mgr.ctrl_blk,
|
|
daio_device_index(daio->type, hw));
|
|
} else {
|
|
hw->daio_mgr_enb_dai(mgr->mgr.ctrl_blk,
|
|
daio_device_index(daio->type, hw));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int daio_mgr_dsb_daio(struct daio_mgr *mgr, struct daio *daio)
|
|
{
|
|
struct hw *hw = mgr->mgr.hw;
|
|
|
|
if (DAIO_OUT_MAX >= daio->type) {
|
|
hw->daio_mgr_dsb_dao(mgr->mgr.ctrl_blk,
|
|
daio_device_index(daio->type, hw));
|
|
} else {
|
|
hw->daio_mgr_dsb_dai(mgr->mgr.ctrl_blk,
|
|
daio_device_index(daio->type, hw));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int daio_map_op(void *data, struct imapper *entry)
|
|
{
|
|
struct rsc_mgr *mgr = &((struct daio_mgr *)data)->mgr;
|
|
struct hw *hw = mgr->hw;
|
|
|
|
hw->daio_mgr_set_imaparc(mgr->ctrl_blk, entry->slot);
|
|
hw->daio_mgr_set_imapnxt(mgr->ctrl_blk, entry->next);
|
|
hw->daio_mgr_set_imapaddr(mgr->ctrl_blk, entry->addr);
|
|
hw->daio_mgr_commit_write(mgr->hw, mgr->ctrl_blk);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int daio_imap_add(struct daio_mgr *mgr, struct imapper *entry)
|
|
{
|
|
unsigned long flags;
|
|
int err;
|
|
|
|
spin_lock_irqsave(&mgr->imap_lock, flags);
|
|
if (!entry->addr && mgr->init_imap_added) {
|
|
input_mapper_delete(&mgr->imappers, mgr->init_imap,
|
|
daio_map_op, mgr);
|
|
mgr->init_imap_added = 0;
|
|
}
|
|
err = input_mapper_add(&mgr->imappers, entry, daio_map_op, mgr);
|
|
spin_unlock_irqrestore(&mgr->imap_lock, flags);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int daio_imap_delete(struct daio_mgr *mgr, struct imapper *entry)
|
|
{
|
|
unsigned long flags;
|
|
int err;
|
|
|
|
spin_lock_irqsave(&mgr->imap_lock, flags);
|
|
err = input_mapper_delete(&mgr->imappers, entry, daio_map_op, mgr);
|
|
if (list_empty(&mgr->imappers)) {
|
|
input_mapper_add(&mgr->imappers, mgr->init_imap,
|
|
daio_map_op, mgr);
|
|
mgr->init_imap_added = 1;
|
|
}
|
|
spin_unlock_irqrestore(&mgr->imap_lock, flags);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int daio_mgr_commit_write(struct daio_mgr *mgr)
|
|
{
|
|
struct hw *hw = mgr->mgr.hw;
|
|
|
|
hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk);
|
|
return 0;
|
|
}
|
|
|
|
int daio_mgr_create(void *hw, struct daio_mgr **rdaio_mgr)
|
|
{
|
|
int err, i;
|
|
struct daio_mgr *daio_mgr;
|
|
struct imapper *entry;
|
|
|
|
*rdaio_mgr = NULL;
|
|
daio_mgr = kzalloc(sizeof(*daio_mgr), GFP_KERNEL);
|
|
if (!daio_mgr)
|
|
return -ENOMEM;
|
|
|
|
err = rsc_mgr_init(&daio_mgr->mgr, DAIO, NUM_DAIOTYP, hw);
|
|
if (err)
|
|
goto error1;
|
|
|
|
spin_lock_init(&daio_mgr->mgr_lock);
|
|
spin_lock_init(&daio_mgr->imap_lock);
|
|
INIT_LIST_HEAD(&daio_mgr->imappers);
|
|
entry = kzalloc(sizeof(*entry), GFP_KERNEL);
|
|
if (!entry) {
|
|
err = -ENOMEM;
|
|
goto error2;
|
|
}
|
|
entry->slot = entry->addr = entry->next = entry->user = 0;
|
|
list_add(&entry->list, &daio_mgr->imappers);
|
|
daio_mgr->init_imap = entry;
|
|
daio_mgr->init_imap_added = 1;
|
|
|
|
daio_mgr->get_daio = get_daio_rsc;
|
|
daio_mgr->put_daio = put_daio_rsc;
|
|
daio_mgr->daio_enable = daio_mgr_enb_daio;
|
|
daio_mgr->daio_disable = daio_mgr_dsb_daio;
|
|
daio_mgr->imap_add = daio_imap_add;
|
|
daio_mgr->imap_delete = daio_imap_delete;
|
|
daio_mgr->commit_write = daio_mgr_commit_write;
|
|
|
|
for (i = 0; i < 8; i++) {
|
|
((struct hw *)hw)->daio_mgr_dsb_dao(daio_mgr->mgr.ctrl_blk, i);
|
|
((struct hw *)hw)->daio_mgr_dsb_dai(daio_mgr->mgr.ctrl_blk, i);
|
|
}
|
|
((struct hw *)hw)->daio_mgr_commit_write(hw, daio_mgr->mgr.ctrl_blk);
|
|
|
|
*rdaio_mgr = daio_mgr;
|
|
|
|
return 0;
|
|
|
|
error2:
|
|
rsc_mgr_uninit(&daio_mgr->mgr);
|
|
error1:
|
|
kfree(daio_mgr);
|
|
return err;
|
|
}
|
|
|
|
int daio_mgr_destroy(struct daio_mgr *daio_mgr)
|
|
{
|
|
unsigned long flags;
|
|
|
|
/* free daio input mapper list */
|
|
spin_lock_irqsave(&daio_mgr->imap_lock, flags);
|
|
free_input_mapper_list(&daio_mgr->imappers);
|
|
spin_unlock_irqrestore(&daio_mgr->imap_lock, flags);
|
|
|
|
rsc_mgr_uninit(&daio_mgr->mgr);
|
|
kfree(daio_mgr);
|
|
|
|
return 0;
|
|
}
|
|
|