diff options
Diffstat (limited to 'sound/pci/ctxfi/ctdaio.c')
-rw-r--r-- | sound/pci/ctxfi/ctdaio.c | 769 |
1 files changed, 769 insertions, 0 deletions
diff --git a/sound/pci/ctxfi/ctdaio.c b/sound/pci/ctxfi/ctdaio.c new file mode 100644 index 00000000000..a2aea399eba --- /dev/null +++ b/sound/pci/ctxfi/ctdaio.c @@ -0,0 +1,769 @@ +/** + * 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 ctdaio.c + * + * @Brief + * This file contains the implementation of Digital Audio Input Output + * resource management object. + * + * @Author Liu Chun + * @Date May 23 2008 + * + */ + +#include "ctdaio.h" +#include "cthardware.h" +#include "ctimap.h" +#include <linux/slab.h> +#include <linux/kernel.h> + +#define DAIO_RESOURCE_NUM NUM_DAIOTYP +#define DAIO_OUT_MAX SPDIFOO + +union daio_usage { + struct { + unsigned short lineo1:1; + unsigned short lineo2:1; + unsigned short lineo3:1; + unsigned short lineo4:1; + unsigned short spdifoo:1; + unsigned short lineim:1; + unsigned short spdifio:1; + unsigned short spdifi1:1; + } bf; + unsigned short data; +}; + +struct daio_rsc_idx { + unsigned short left; + unsigned short right; +}; + +struct daio_rsc_idx idx_20k1[NUM_DAIOTYP] = { + [LINEO1] = {.left = 0x00, .right = 0x01}, + [LINEO2] = {.left = 0x18, .right = 0x19}, + [LINEO3] = {.left = 0x08, .right = 0x09}, + [LINEO4] = {.left = 0x10, .right = 0x11}, + [LINEIM] = {.left = 0x1b5, .right = 0x1bd}, + [SPDIFOO] = {.left = 0x20, .right = 0x21}, + [SPDIFIO] = {.left = 0x15, .right = 0x1d}, + [SPDIFI1] = {.left = 0x95, .right = 0x9d}, +}; + +struct daio_rsc_idx idx_20k2[NUM_DAIOTYP] = { + [LINEO1] = {.left = 0x40, .right = 0x41}, + [LINEO2] = {.left = 0x70, .right = 0x71}, + [LINEO3] = {.left = 0x50, .right = 0x51}, + [LINEO4] = {.left = 0x60, .right = 0x61}, + [LINEIM] = {.left = 0x45, .right = 0xc5}, + [SPDIFOO] = {.left = 0x00, .right = 0x01}, + [SPDIFIO] = {.left = 0x05, .right = 0x85}, +}; + +static int daio_master(struct rsc *rsc) +{ + /* Actually, this is not the resource index of DAIO. + * For DAO, it is the input mapper index. And, for DAI, + * it is the output time-slot index. */ + return rsc->conj = rsc->idx; +} + +static int daio_index(const struct rsc *rsc) +{ + return rsc->conj; +} + +static int daio_out_next_conj(struct rsc *rsc) +{ + return rsc->conj += 2; +} + +static int daio_in_next_conj_20k1(struct rsc *rsc) +{ + return rsc->conj += 0x200; +} + +static int daio_in_next_conj_20k2(struct rsc *rsc) +{ + return rsc->conj += 0x100; +} + +static struct rsc_ops daio_out_rsc_ops = { + .master = daio_master, + .next_conj = daio_out_next_conj, + .index = daio_index, + .output_slot = NULL, +}; + +static struct rsc_ops daio_in_rsc_ops_20k1 = { + .master = daio_master, + .next_conj = daio_in_next_conj_20k1, + .index = NULL, + .output_slot = daio_index, +}; + +static struct rsc_ops daio_in_rsc_ops_20k2 = { + .master = daio_master, + .next_conj = daio_in_next_conj_20k2, + .index = NULL, + .output_slot = daio_index, +}; + +static unsigned int daio_device_index(enum DAIOTYP type, struct hw *hw) +{ + switch (hw->get_chip_type(hw)) { + case ATC20K1: + switch (type) { + case SPDIFOO: return 0; + case SPDIFIO: return 0; + case SPDIFI1: return 1; + case LINEO1: return 4; + case LINEO2: return 7; + case LINEO3: return 5; + case LINEO4: return 6; + case LINEIM: return 7; + default: return -EINVAL; + } + case ATC20K2: + switch (type) { + case SPDIFOO: return 0; + case SPDIFIO: return 0; + case LINEO1: return 4; + case LINEO2: return 7; + case LINEO3: return 5; + case LINEO4: return 6; + case LINEIM: return 4; + default: return -EINVAL; + } + default: + return -EINVAL; + } +} + +static int dao_rsc_reinit(struct dao *dao, const struct dao_desc *desc); + +static int dao_spdif_get_spos(struct dao *dao, unsigned int *spos) +{ + ((struct hw *)dao->hw)->dao_get_spos(dao->ctrl_blk, spos); + return 0; +} + +static int dao_spdif_set_spos(struct dao *dao, unsigned int spos) +{ + ((struct hw *)dao->hw)->dao_set_spos(dao->ctrl_blk, spos); + return 0; +} + +static int dao_commit_write(struct dao *dao) +{ + ((struct hw *)dao->hw)->dao_commit_write(dao->hw, + daio_device_index(dao->daio.type, dao->hw), dao->ctrl_blk); + return 0; +} + +static int dao_set_left_input(struct dao *dao, struct rsc *input) +{ + struct imapper *entry = NULL; + struct daio *daio = &dao->daio; + int i = 0; + + entry = kzalloc((sizeof(*entry) * daio->rscl.msr), GFP_KERNEL); + if (NULL == entry) + return -ENOMEM; + + /* Program master and conjugate resources */ + input->ops->master(input); + daio->rscl.ops->master(&daio->rscl); + for (i = 0; i < daio->rscl.msr; i++, entry++) { + entry->slot = input->ops->output_slot(input); + entry->user = entry->addr = daio->rscl.ops->index(&daio->rscl); + dao->mgr->imap_add(dao->mgr, entry); + dao->imappers[i] = entry; + + input->ops->next_conj(input); + daio->rscl.ops->next_conj(&daio->rscl); + } + input->ops->master(input); + daio->rscl.ops->master(&daio->rscl); + + return 0; +} + +static int dao_set_right_input(struct dao *dao, struct rsc *input) +{ + struct imapper *entry = NULL; + struct daio *daio = &dao->daio; + int i = 0; + + entry = kzalloc((sizeof(*entry) * daio->rscr.msr), GFP_KERNEL); + if (NULL == entry) + return -ENOMEM; + + /* Program master and conjugate resources */ + input->ops->master(input); + daio->rscr.ops->master(&daio->rscr); + for (i = 0; i < daio->rscr.msr; i++, entry++) { + entry->slot = input->ops->output_slot(input); + entry->user = entry->addr = daio->rscr.ops->index(&daio->rscr); + dao->mgr->imap_add(dao->mgr, entry); + dao->imappers[daio->rscl.msr + i] = entry; + + input->ops->next_conj(input); + daio->rscr.ops->next_conj(&daio->rscr); + } + input->ops->master(input); + daio->rscr.ops->master(&daio->rscr); + + return 0; +} + +static int dao_clear_left_input(struct dao *dao) +{ + struct imapper *entry = NULL; + struct daio *daio = &dao->daio; + int i = 0; + + if (NULL == dao->imappers[0]) + return 0; + + entry = dao->imappers[0]; + dao->mgr->imap_delete(dao->mgr, entry); + /* Program conjugate resources */ + for (i = 1; i < daio->rscl.msr; i++) { + entry = dao->imappers[i]; + dao->mgr->imap_delete(dao->mgr, entry); + dao->imappers[i] = NULL; + } + + kfree(dao->imappers[0]); + dao->imappers[0] = NULL; + + return 0; +} + +static int dao_clear_right_input(struct dao *dao) +{ + struct imapper *entry = NULL; + struct daio *daio = &dao->daio; + int i = 0; + + if (NULL == dao->imappers[daio->rscl.msr]) + return 0; + + entry = dao->imappers[daio->rscl.msr]; + dao->mgr->imap_delete(dao->mgr, entry); + /* Program conjugate resources */ + for (i = 1; i < daio->rscr.msr; i++) { + entry = dao->imappers[daio->rscl.msr + i]; + dao->mgr->imap_delete(dao->mgr, entry); + dao->imappers[daio->rscl.msr + i] = NULL; + } + + kfree(dao->imappers[daio->rscl.msr]); + dao->imappers[daio->rscl.msr] = NULL; + + return 0; +} + +static struct dao_rsc_ops dao_ops = { + .set_spos = dao_spdif_set_spos, + .commit_write = dao_commit_write, + .get_spos = dao_spdif_get_spos, + .reinit = dao_rsc_reinit, + .set_left_input = dao_set_left_input, + .set_right_input = dao_set_right_input, + .clear_left_input = dao_clear_left_input, + .clear_right_input = dao_clear_right_input, +}; + +static int dai_set_srt_srcl(struct dai *dai, struct rsc *src) +{ + src->ops->master(src); + ((struct hw *)dai->hw)->dai_srt_set_srcm(dai->ctrl_blk, + src->ops->index(src)); + return 0; +} + +static int dai_set_srt_srcr(struct dai *dai, struct rsc *src) +{ + src->ops->master(src); + ((struct hw *)dai->hw)->dai_srt_set_srco(dai->ctrl_blk, + src->ops->index(src)); + return 0; +} + +static int dai_set_srt_msr(struct dai *dai, unsigned int msr) +{ + unsigned int rsr = 0; + + for (rsr = 0; msr > 1; msr >>= 1) + rsr++; + + ((struct hw *)dai->hw)->dai_srt_set_rsr(dai->ctrl_blk, rsr); + return 0; +} + +static int dai_set_enb_src(struct dai *dai, unsigned int enb) +{ + ((struct hw *)dai->hw)->dai_srt_set_ec(dai->ctrl_blk, enb); + return 0; +} + +static int dai_set_enb_srt(struct dai *dai, unsigned int enb) +{ + ((struct hw *)dai->hw)->dai_srt_set_et(dai->ctrl_blk, enb); + return 0; +} + +static int dai_commit_write(struct dai *dai) +{ + ((struct hw *)dai->hw)->dai_commit_write(dai->hw, + daio_device_index(dai->daio.type, dai->hw), dai->ctrl_blk); + return 0; +} + +static struct dai_rsc_ops dai_ops = { + .set_srt_srcl = dai_set_srt_srcl, + .set_srt_srcr = dai_set_srt_srcr, + .set_srt_msr = dai_set_srt_msr, + .set_enb_src = dai_set_enb_src, + .set_enb_srt = dai_set_enb_srt, + .commit_write = dai_commit_write, +}; + +static int daio_rsc_init(struct daio *daio, + const struct daio_desc *desc, + void *hw) +{ + int err = 0; + unsigned int idx_l = 0, idx_r = 0; + + switch (((struct hw *)hw)->get_chip_type(hw)) { + case ATC20K1: + idx_l = idx_20k1[desc->type].left; + idx_r = idx_20k1[desc->type].right; + break; + case ATC20K2: + idx_l = idx_20k2[desc->type].left; + idx_r = idx_20k2[desc->type].right; + break; + default: + return -EINVAL; + } + err = rsc_init(&daio->rscl, idx_l, DAIO, desc->msr, hw); + if (err) + return err; + + err = rsc_init(&daio->rscr, idx_r, DAIO, desc->msr, hw); + if (err) + goto error1; + + /* Set daio->rscl/r->ops to daio specific ones */ + if (desc->type <= DAIO_OUT_MAX) { + daio->rscl.ops = daio->rscr.ops = &daio_out_rsc_ops; + } else { + switch (((struct hw *)hw)->get_chip_type(hw)) { + case ATC20K1: + daio->rscl.ops = daio->rscr.ops = &daio_in_rsc_ops_20k1; + break; + case ATC20K2: + daio->rscl.ops = daio->rscr.ops = &daio_in_rsc_ops_20k2; + break; + default: + break; + } + } + daio->type = desc->type; + + return 0; + +error1: + rsc_uninit(&daio->rscl); + return err; +} + +static int daio_rsc_uninit(struct daio *daio) +{ + rsc_uninit(&daio->rscl); + rsc_uninit(&daio->rscr); + + return 0; +} + +static int dao_rsc_init(struct dao *dao, + const struct daio_desc *desc, + struct daio_mgr *mgr) +{ + struct hw *hw = mgr->mgr.hw; + unsigned int conf = 0; + int err = 0; + + err = daio_rsc_init(&dao->daio, desc, mgr->mgr.hw); + if (err) + return err; + + dao->imappers = kzalloc(sizeof(void *)*desc->msr*2, GFP_KERNEL); + if (NULL == dao->imappers) { + err = -ENOMEM; + goto error1; + } + dao->ops = &dao_ops; + dao->mgr = mgr; + dao->hw = hw; + err = hw->dao_get_ctrl_blk(&dao->ctrl_blk); + if (err) + goto error2; + + hw->daio_mgr_dsb_dao(mgr->mgr.ctrl_blk, + daio_device_index(dao->daio.type, hw)); + hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk); + + conf |= (desc->msr & 0x7) | (desc->passthru << 3); + hw->daio_mgr_dao_init(mgr->mgr.ctrl_blk, + daio_device_index(dao->daio.type, hw), conf); + hw->daio_mgr_enb_dao(mgr->mgr.ctrl_blk, + daio_device_index(dao->daio.type, hw)); + hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk); + + return 0; + +error2: + kfree(dao->imappers); + dao->imappers = NULL; +error1: + daio_rsc_uninit(&dao->daio); + return err; +} + +static int dao_rsc_uninit(struct dao *dao) +{ + if (NULL != dao->imappers) { + if (NULL != dao->imappers[0]) + dao_clear_left_input(dao); + + if (NULL != dao->imappers[dao->daio.rscl.msr]) + dao_clear_right_input(dao); + + kfree(dao->imappers); + dao->imappers = NULL; + } + ((struct hw *)dao->hw)->dao_put_ctrl_blk(dao->ctrl_blk); + dao->hw = dao->ctrl_blk = NULL; + daio_rsc_uninit(&dao->daio); + + return 0; +} + +static int dao_rsc_reinit(struct dao *dao, const struct dao_desc *desc) +{ + struct daio_mgr *mgr = dao->mgr; + struct daio_desc dsc = {0}; + + dsc.type = dao->daio.type; + dsc.msr = desc->msr; + dsc.passthru = desc->passthru; + dao_rsc_uninit(dao); + return dao_rsc_init(dao, &dsc, mgr); +} + +static int dai_rsc_init(struct dai *dai, + const struct daio_desc *desc, + struct daio_mgr *mgr) +{ + int err = 0; + struct hw *hw = mgr->mgr.hw; + unsigned int rsr = 0, msr = 0; + + err = daio_rsc_init(&dai->daio, desc, mgr->mgr.hw); + if (err) + return err; + + dai->ops = &dai_ops; + dai->hw = mgr->mgr.hw; + err = hw->dai_get_ctrl_blk(&dai->ctrl_blk); + if (err) + goto error1; + + for (rsr = 0, msr = desc->msr; msr > 1; msr >>= 1) + rsr++; + + 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 (((union daio_usage *)mgr->rscs)->data & (0x1 << type)) + return -ENOENT; + + ((union daio_usage *)mgr->rscs)->data |= (0x1 << type); + + return 0; +} + +static int daio_mgr_put_rsc(struct rsc_mgr *mgr, enum DAIOTYP type) +{ + ((union 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 = 0; + 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 (NULL == 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 (NULL == 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 (NULL != dao) + kfree(dao); + else if (NULL != 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 = 0; + + spin_lock_irqsave(&mgr->imap_lock, flags); + if ((0 == 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 = 0; + + 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 = 0, i = 0; + struct daio_mgr *daio_mgr; + struct imapper *entry; + + *rdaio_mgr = NULL; + daio_mgr = kzalloc(sizeof(*daio_mgr), GFP_KERNEL); + if (NULL == daio_mgr) + return -ENOMEM; + + err = rsc_mgr_init(&daio_mgr->mgr, DAIO, DAIO_RESOURCE_NUM, 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 (NULL == 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; +} + |