diff options
author | Takashi Iwai <tiwai@suse.de> | 2009-06-10 07:26:27 +0200 |
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committer | Takashi Iwai <tiwai@suse.de> | 2009-06-10 07:26:27 +0200 |
commit | e618a5609e504845786c71e2825e10b6a9728185 (patch) | |
tree | 6c9e1a40216b776923567f9b3506a8fee66dec89 /sound/pci/ctxfi/ctamixer.c | |
parent | d3e3743694cbfd64450b3468e11b40ba8c6f4369 (diff) | |
parent | a5990dc5b96f537618b0f057c8723a6a0b0cdc74 (diff) |
Merge branch 'topic/ctxfi' into for-linus
* topic/ctxfi: (35 commits)
ALSA: ctxfi - Clear PCM resources at hw_params and hw_free
ALSA: ctxfi - Check the presence of SRC instance in PCM pointer callbacks
ALSA: ctxfi - Add missing start check in atc_pcm_playback_start()
ALSA: ctxfi - Add use_system_timer module option
ALSA: ctxfi - Fix wrong model id for UAA
ALSA: ctxfi - Clean up probe routines
ALSA: ctxfi - Fix / clean up hw20k2 chip code
ALSA: ctxfi - Fix possible buffer pointer overrun
ALSA: ctxfi - Remove useless initializations and cast
ALSA: ctxfi - Fix DMA mask for emu20k2 chip
ALSA: ctxfi - Make volume controls more intuitive
ALSA: ctxfi - Optimize the native timer handling using wc counter
ALSA: ctxfi - Add missing inclusion of linux/math64.h
ALSA: ctxfi - Set device 0 for mixer control elements
ALSA: ctxfi - Clean up / optimize
ALSA: ctxfi - Set periods_min to 2
ALSA: ctxfi - Use native timer interrupt on emu20k1
ALSA: ctxfi - Fix previous fix for 64bit DMA
ALSA: ctxfi - Fix endian-dependent codes
ALSA: ctxfi - Allow 64bit DMA
...
Diffstat (limited to 'sound/pci/ctxfi/ctamixer.c')
-rw-r--r-- | sound/pci/ctxfi/ctamixer.c | 488 |
1 files changed, 488 insertions, 0 deletions
diff --git a/sound/pci/ctxfi/ctamixer.c b/sound/pci/ctxfi/ctamixer.c new file mode 100644 index 00000000000..a1db51b3ead --- /dev/null +++ b/sound/pci/ctxfi/ctamixer.c @@ -0,0 +1,488 @@ +/** + * 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 ctamixer.c + * + * @Brief + * This file contains the implementation of the Audio Mixer + * resource management object. + * + * @Author Liu Chun + * @Date May 21 2008 + * + */ + +#include "ctamixer.h" +#include "cthardware.h" +#include <linux/slab.h> + +#define AMIXER_RESOURCE_NUM 256 +#define SUM_RESOURCE_NUM 256 + +#define AMIXER_Y_IMMEDIATE 1 + +#define BLANK_SLOT 4094 + +static int amixer_master(struct rsc *rsc) +{ + rsc->conj = 0; + return rsc->idx = container_of(rsc, struct amixer, rsc)->idx[0]; +} + +static int amixer_next_conj(struct rsc *rsc) +{ + rsc->conj++; + return container_of(rsc, struct amixer, rsc)->idx[rsc->conj]; +} + +static int amixer_index(const struct rsc *rsc) +{ + return container_of(rsc, struct amixer, rsc)->idx[rsc->conj]; +} + +static int amixer_output_slot(const struct rsc *rsc) +{ + return (amixer_index(rsc) << 4) + 0x4; +} + +static struct rsc_ops amixer_basic_rsc_ops = { + .master = amixer_master, + .next_conj = amixer_next_conj, + .index = amixer_index, + .output_slot = amixer_output_slot, +}; + +static int amixer_set_input(struct amixer *amixer, struct rsc *rsc) +{ + struct hw *hw; + + hw = amixer->rsc.hw; + hw->amixer_set_mode(amixer->rsc.ctrl_blk, AMIXER_Y_IMMEDIATE); + amixer->input = rsc; + if (NULL == rsc) + hw->amixer_set_x(amixer->rsc.ctrl_blk, BLANK_SLOT); + else + hw->amixer_set_x(amixer->rsc.ctrl_blk, + rsc->ops->output_slot(rsc)); + + return 0; +} + +/* y is a 14-bit immediate constant */ +static int amixer_set_y(struct amixer *amixer, unsigned int y) +{ + struct hw *hw; + + hw = amixer->rsc.hw; + hw->amixer_set_y(amixer->rsc.ctrl_blk, y); + + return 0; +} + +static int amixer_set_invalid_squash(struct amixer *amixer, unsigned int iv) +{ + struct hw *hw; + + hw = amixer->rsc.hw; + hw->amixer_set_iv(amixer->rsc.ctrl_blk, iv); + + return 0; +} + +static int amixer_set_sum(struct amixer *amixer, struct sum *sum) +{ + struct hw *hw; + + hw = amixer->rsc.hw; + amixer->sum = sum; + if (NULL == sum) { + hw->amixer_set_se(amixer->rsc.ctrl_blk, 0); + } else { + hw->amixer_set_se(amixer->rsc.ctrl_blk, 1); + hw->amixer_set_sadr(amixer->rsc.ctrl_blk, + sum->rsc.ops->index(&sum->rsc)); + } + + return 0; +} + +static int amixer_commit_write(struct amixer *amixer) +{ + struct hw *hw; + unsigned int index; + int i; + struct rsc *input; + struct sum *sum; + + hw = amixer->rsc.hw; + input = amixer->input; + sum = amixer->sum; + + /* Program master and conjugate resources */ + amixer->rsc.ops->master(&amixer->rsc); + if (NULL != input) + input->ops->master(input); + + if (NULL != sum) + sum->rsc.ops->master(&sum->rsc); + + for (i = 0; i < amixer->rsc.msr; i++) { + hw->amixer_set_dirty_all(amixer->rsc.ctrl_blk); + if (NULL != input) { + hw->amixer_set_x(amixer->rsc.ctrl_blk, + input->ops->output_slot(input)); + input->ops->next_conj(input); + } + if (NULL != sum) { + hw->amixer_set_sadr(amixer->rsc.ctrl_blk, + sum->rsc.ops->index(&sum->rsc)); + sum->rsc.ops->next_conj(&sum->rsc); + } + index = amixer->rsc.ops->output_slot(&amixer->rsc); + hw->amixer_commit_write(hw, index, amixer->rsc.ctrl_blk); + amixer->rsc.ops->next_conj(&amixer->rsc); + } + amixer->rsc.ops->master(&amixer->rsc); + if (NULL != input) + input->ops->master(input); + + if (NULL != sum) + sum->rsc.ops->master(&sum->rsc); + + return 0; +} + +static int amixer_commit_raw_write(struct amixer *amixer) +{ + struct hw *hw; + unsigned int index; + + hw = amixer->rsc.hw; + index = amixer->rsc.ops->output_slot(&amixer->rsc); + hw->amixer_commit_write(hw, index, amixer->rsc.ctrl_blk); + + return 0; +} + +static int amixer_get_y(struct amixer *amixer) +{ + struct hw *hw; + + hw = amixer->rsc.hw; + return hw->amixer_get_y(amixer->rsc.ctrl_blk); +} + +static int amixer_setup(struct amixer *amixer, struct rsc *input, + unsigned int scale, struct sum *sum) +{ + amixer_set_input(amixer, input); + amixer_set_y(amixer, scale); + amixer_set_sum(amixer, sum); + amixer_commit_write(amixer); + return 0; +} + +static struct amixer_rsc_ops amixer_ops = { + .set_input = amixer_set_input, + .set_invalid_squash = amixer_set_invalid_squash, + .set_scale = amixer_set_y, + .set_sum = amixer_set_sum, + .commit_write = amixer_commit_write, + .commit_raw_write = amixer_commit_raw_write, + .setup = amixer_setup, + .get_scale = amixer_get_y, +}; + +static int amixer_rsc_init(struct amixer *amixer, + const struct amixer_desc *desc, + struct amixer_mgr *mgr) +{ + int err; + + err = rsc_init(&amixer->rsc, amixer->idx[0], + AMIXER, desc->msr, mgr->mgr.hw); + if (err) + return err; + + /* Set amixer specific operations */ + amixer->rsc.ops = &amixer_basic_rsc_ops; + amixer->ops = &amixer_ops; + amixer->input = NULL; + amixer->sum = NULL; + + amixer_setup(amixer, NULL, 0, NULL); + + return 0; +} + +static int amixer_rsc_uninit(struct amixer *amixer) +{ + amixer_setup(amixer, NULL, 0, NULL); + rsc_uninit(&amixer->rsc); + amixer->ops = NULL; + amixer->input = NULL; + amixer->sum = NULL; + return 0; +} + +static int get_amixer_rsc(struct amixer_mgr *mgr, + const struct amixer_desc *desc, + struct amixer **ramixer) +{ + int err, i; + unsigned int idx; + struct amixer *amixer; + unsigned long flags; + + *ramixer = NULL; + + /* Allocate mem for amixer resource */ + amixer = kzalloc(sizeof(*amixer), GFP_KERNEL); + if (NULL == amixer) { + err = -ENOMEM; + return err; + } + + /* Check whether there are sufficient + * amixer resources to meet request. */ + spin_lock_irqsave(&mgr->mgr_lock, flags); + for (i = 0; i < desc->msr; i++) { + err = mgr_get_resource(&mgr->mgr, 1, &idx); + if (err) + break; + + amixer->idx[i] = idx; + } + spin_unlock_irqrestore(&mgr->mgr_lock, flags); + if (err) { + printk(KERN_ERR "ctxfi: Can't meet AMIXER resource request!\n"); + goto error; + } + + err = amixer_rsc_init(amixer, desc, mgr); + if (err) + goto error; + + *ramixer = amixer; + + return 0; + +error: + spin_lock_irqsave(&mgr->mgr_lock, flags); + for (i--; i >= 0; i--) + mgr_put_resource(&mgr->mgr, 1, amixer->idx[i]); + + spin_unlock_irqrestore(&mgr->mgr_lock, flags); + kfree(amixer); + return err; +} + +static int put_amixer_rsc(struct amixer_mgr *mgr, struct amixer *amixer) +{ + unsigned long flags; + int i; + + spin_lock_irqsave(&mgr->mgr_lock, flags); + for (i = 0; i < amixer->rsc.msr; i++) + mgr_put_resource(&mgr->mgr, 1, amixer->idx[i]); + + spin_unlock_irqrestore(&mgr->mgr_lock, flags); + amixer_rsc_uninit(amixer); + kfree(amixer); + + return 0; +} + +int amixer_mgr_create(void *hw, struct amixer_mgr **ramixer_mgr) +{ + int err; + struct amixer_mgr *amixer_mgr; + + *ramixer_mgr = NULL; + amixer_mgr = kzalloc(sizeof(*amixer_mgr), GFP_KERNEL); + if (NULL == amixer_mgr) + return -ENOMEM; + + err = rsc_mgr_init(&amixer_mgr->mgr, AMIXER, AMIXER_RESOURCE_NUM, hw); + if (err) + goto error; + + spin_lock_init(&amixer_mgr->mgr_lock); + + amixer_mgr->get_amixer = get_amixer_rsc; + amixer_mgr->put_amixer = put_amixer_rsc; + + *ramixer_mgr = amixer_mgr; + + return 0; + +error: + kfree(amixer_mgr); + return err; +} + +int amixer_mgr_destroy(struct amixer_mgr *amixer_mgr) +{ + rsc_mgr_uninit(&amixer_mgr->mgr); + kfree(amixer_mgr); + return 0; +} + +/* SUM resource management */ + +static int sum_master(struct rsc *rsc) +{ + rsc->conj = 0; + return rsc->idx = container_of(rsc, struct sum, rsc)->idx[0]; +} + +static int sum_next_conj(struct rsc *rsc) +{ + rsc->conj++; + return container_of(rsc, struct sum, rsc)->idx[rsc->conj]; +} + +static int sum_index(const struct rsc *rsc) +{ + return container_of(rsc, struct sum, rsc)->idx[rsc->conj]; +} + +static int sum_output_slot(const struct rsc *rsc) +{ + return (sum_index(rsc) << 4) + 0xc; +} + +static struct rsc_ops sum_basic_rsc_ops = { + .master = sum_master, + .next_conj = sum_next_conj, + .index = sum_index, + .output_slot = sum_output_slot, +}; + +static int sum_rsc_init(struct sum *sum, + const struct sum_desc *desc, + struct sum_mgr *mgr) +{ + int err; + + err = rsc_init(&sum->rsc, sum->idx[0], SUM, desc->msr, mgr->mgr.hw); + if (err) + return err; + + sum->rsc.ops = &sum_basic_rsc_ops; + + return 0; +} + +static int sum_rsc_uninit(struct sum *sum) +{ + rsc_uninit(&sum->rsc); + return 0; +} + +static int get_sum_rsc(struct sum_mgr *mgr, + const struct sum_desc *desc, + struct sum **rsum) +{ + int err, i; + unsigned int idx; + struct sum *sum; + unsigned long flags; + + *rsum = NULL; + + /* Allocate mem for sum resource */ + sum = kzalloc(sizeof(*sum), GFP_KERNEL); + if (NULL == sum) { + err = -ENOMEM; + return err; + } + + /* Check whether there are sufficient sum resources to meet request. */ + spin_lock_irqsave(&mgr->mgr_lock, flags); + for (i = 0; i < desc->msr; i++) { + err = mgr_get_resource(&mgr->mgr, 1, &idx); + if (err) + break; + + sum->idx[i] = idx; + } + spin_unlock_irqrestore(&mgr->mgr_lock, flags); + if (err) { + printk(KERN_ERR "ctxfi: Can't meet SUM resource request!\n"); + goto error; + } + + err = sum_rsc_init(sum, desc, mgr); + if (err) + goto error; + + *rsum = sum; + + return 0; + +error: + spin_lock_irqsave(&mgr->mgr_lock, flags); + for (i--; i >= 0; i--) + mgr_put_resource(&mgr->mgr, 1, sum->idx[i]); + + spin_unlock_irqrestore(&mgr->mgr_lock, flags); + kfree(sum); + return err; +} + +static int put_sum_rsc(struct sum_mgr *mgr, struct sum *sum) +{ + unsigned long flags; + int i; + + spin_lock_irqsave(&mgr->mgr_lock, flags); + for (i = 0; i < sum->rsc.msr; i++) + mgr_put_resource(&mgr->mgr, 1, sum->idx[i]); + + spin_unlock_irqrestore(&mgr->mgr_lock, flags); + sum_rsc_uninit(sum); + kfree(sum); + + return 0; +} + +int sum_mgr_create(void *hw, struct sum_mgr **rsum_mgr) +{ + int err; + struct sum_mgr *sum_mgr; + + *rsum_mgr = NULL; + sum_mgr = kzalloc(sizeof(*sum_mgr), GFP_KERNEL); + if (NULL == sum_mgr) + return -ENOMEM; + + err = rsc_mgr_init(&sum_mgr->mgr, SUM, SUM_RESOURCE_NUM, hw); + if (err) + goto error; + + spin_lock_init(&sum_mgr->mgr_lock); + + sum_mgr->get_sum = get_sum_rsc; + sum_mgr->put_sum = put_sum_rsc; + + *rsum_mgr = sum_mgr; + + return 0; + +error: + kfree(sum_mgr); + return err; +} + +int sum_mgr_destroy(struct sum_mgr *sum_mgr) +{ + rsc_mgr_uninit(&sum_mgr->mgr); + kfree(sum_mgr); + return 0; +} + |