ALSA: SB X-Fi driver merge

The Sound Blaster X-Fi driver supports Creative solutions based on
20K1 and 20K2 chipsets.

Supported hardware :

Creative Sound Blaster X-Fi Titanium Fatal1ty® Champion Series
Creative Sound Blaster X-Fi Titanium Fatal1ty Professional Series
Creative Sound Blaster X-Fi Titanium Professional Audio
Creative Sound Blaster X-Fi Titanium
Creative Sound Blaster X-Fi Elite Pro
Creative Sound Blaster X-Fi Platinum
Creative Sound Blaster X-Fi Fatal1ty
Creative Sound Blaster X-Fi XtremeGamer
Creative Sound Blaster X-Fi XtremeMusic

Current release features:

* ALSA PCM Playback
* ALSA Record
* ALSA Mixer

Note:

* External I/O modules detection not included.

Signed-off-by: Wai Yew CHAY <wychay@ctl.creative.com>
Singed-off-by: Ryan RICHARDS <ryan_richards@creativelabs.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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 000000000000..119791aa70eb
--- /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 = NULL;
+
+        hw = (struct 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 = NULL;
+
+        hw = (struct 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 = NULL;
+
+        hw = (struct 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 = NULL;
+
+        hw = (struct 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 = NULL;
+        unsigned int index = 0;
+        int i = 0;
+        struct rsc *input = NULL;
+        struct sum *sum = NULL;
+
+        hw = (struct 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 = NULL;
+        unsigned int index = 0;
+
+        hw = (struct 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 = NULL;
+
+        hw = (struct 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 = 0;
+
+        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 = 0, i = 0;
+        unsigned int idx = 0;
+        struct amixer *amixer = NULL;
+        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 "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 = 0;
+
+        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 = 0;
+        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 = 0;
+
+        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 = 0, i = 0;
+        unsigned int idx = 0;
+        struct sum *sum = NULL;
+        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 "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 = 0;
+
+        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 = 0;
+        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;
+}
+