diff options
Diffstat (limited to 'drivers/staging/dream/qdsp5/snd.c')
| -rw-r--r-- | drivers/staging/dream/qdsp5/snd.c | 280 |
1 files changed, 0 insertions, 280 deletions
diff --git a/drivers/staging/dream/qdsp5/snd.c b/drivers/staging/dream/qdsp5/snd.c deleted file mode 100644 index e0f2f7bca29..00000000000 --- a/drivers/staging/dream/qdsp5/snd.c +++ /dev/null @@ -1,280 +0,0 @@ -/* arch/arm/mach-msm/qdsp5/snd.c - * - * interface to "snd" service on the baseband cpu - * - * Copyright (C) 2008 HTC Corporation - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <linux/module.h> -#include <linux/fs.h> -#include <linux/miscdevice.h> -#include <linux/uaccess.h> -#include <linux/kthread.h> -#include <linux/delay.h> -#include <linux/msm_audio.h> - -#include <asm/atomic.h> -#include <asm/ioctls.h> -#include <mach/board.h> -#include <mach/msm_rpcrouter.h> - -struct snd_ctxt { - struct mutex lock; - int opened; - struct msm_rpc_endpoint *ept; - struct msm_snd_endpoints *snd_epts; -}; - -static struct snd_ctxt the_snd; - -#define RPC_SND_PROG 0x30000002 -#define RPC_SND_CB_PROG 0x31000002 -#if CONFIG_MSM_AMSS_VERSION == 6210 -#define RPC_SND_VERS 0x94756085 /* 2490720389 */ -#elif (CONFIG_MSM_AMSS_VERSION == 6220) || \ - (CONFIG_MSM_AMSS_VERSION == 6225) -#define RPC_SND_VERS 0xaa2b1a44 /* 2854951492 */ -#elif CONFIG_MSM_AMSS_VERSION == 6350 -#define RPC_SND_VERS MSM_RPC_VERS(1,0) -#endif - -#define SND_SET_DEVICE_PROC 2 -#define SND_SET_VOLUME_PROC 3 - -struct rpc_snd_set_device_args { - uint32_t device; - uint32_t ear_mute; - uint32_t mic_mute; - - uint32_t cb_func; - uint32_t client_data; -}; - -struct rpc_snd_set_volume_args { - uint32_t device; - uint32_t method; - uint32_t volume; - - uint32_t cb_func; - uint32_t client_data; -}; - -struct snd_set_device_msg { - struct rpc_request_hdr hdr; - struct rpc_snd_set_device_args args; -}; - -struct snd_set_volume_msg { - struct rpc_request_hdr hdr; - struct rpc_snd_set_volume_args args; -}; - -struct snd_endpoint *get_snd_endpoints(int *size); - -static inline int check_mute(int mute) -{ - return (mute == SND_MUTE_MUTED || - mute == SND_MUTE_UNMUTED) ? 0 : -EINVAL; -} - -static int get_endpoint(struct snd_ctxt *snd, unsigned long arg) -{ - int rc = 0, index; - struct msm_snd_endpoint ept; - - if (copy_from_user(&ept, (void __user *)arg, sizeof(ept))) { - pr_err("snd_ioctl get endpoint: invalid read pointer.\n"); - return -EFAULT; - } - - index = ept.id; - if (index < 0 || index >= snd->snd_epts->num) { - pr_err("snd_ioctl get endpoint: invalid index!\n"); - return -EINVAL; - } - - ept.id = snd->snd_epts->endpoints[index].id; - strncpy(ept.name, - snd->snd_epts->endpoints[index].name, - sizeof(ept.name)); - - if (copy_to_user((void __user *)arg, &ept, sizeof(ept))) { - pr_err("snd_ioctl get endpoint: invalid write pointer.\n"); - rc = -EFAULT; - } - - return rc; -} - -static long snd_ioctl(struct file *file, unsigned int cmd, unsigned long arg) -{ - struct snd_set_device_msg dmsg; - struct snd_set_volume_msg vmsg; - struct msm_snd_device_config dev; - struct msm_snd_volume_config vol; - struct snd_ctxt *snd = file->private_data; - int rc = 0; - - mutex_lock(&snd->lock); - switch (cmd) { - case SND_SET_DEVICE: - if (copy_from_user(&dev, (void __user *) arg, sizeof(dev))) { - pr_err("snd_ioctl set device: invalid pointer.\n"); - rc = -EFAULT; - break; - } - - dmsg.args.device = cpu_to_be32(dev.device); - dmsg.args.ear_mute = cpu_to_be32(dev.ear_mute); - dmsg.args.mic_mute = cpu_to_be32(dev.mic_mute); - if (check_mute(dev.ear_mute) < 0 || - check_mute(dev.mic_mute) < 0) { - pr_err("snd_ioctl set device: invalid mute status.\n"); - rc = -EINVAL; - break; - } - dmsg.args.cb_func = -1; - dmsg.args.client_data = 0; - - pr_info("snd_set_device %d %d %d\n", dev.device, - dev.ear_mute, dev.mic_mute); - - rc = msm_rpc_call(snd->ept, - SND_SET_DEVICE_PROC, - &dmsg, sizeof(dmsg), 5 * HZ); - break; - - case SND_SET_VOLUME: - if (copy_from_user(&vol, (void __user *) arg, sizeof(vol))) { - pr_err("snd_ioctl set volume: invalid pointer.\n"); - rc = -EFAULT; - break; - } - - vmsg.args.device = cpu_to_be32(vol.device); - vmsg.args.method = cpu_to_be32(vol.method); - if (vol.method != SND_METHOD_VOICE) { - pr_err("snd_ioctl set volume: invalid method.\n"); - rc = -EINVAL; - break; - } - - vmsg.args.volume = cpu_to_be32(vol.volume); - vmsg.args.cb_func = -1; - vmsg.args.client_data = 0; - - pr_info("snd_set_volume %d %d %d\n", vol.device, - vol.method, vol.volume); - - rc = msm_rpc_call(snd->ept, - SND_SET_VOLUME_PROC, - &vmsg, sizeof(vmsg), 5 * HZ); - break; - - case SND_GET_NUM_ENDPOINTS: - if (copy_to_user((void __user *)arg, - &snd->snd_epts->num, sizeof(unsigned))) { - pr_err("snd_ioctl get endpoint: invalid pointer.\n"); - rc = -EFAULT; - } - break; - - case SND_GET_ENDPOINT: - rc = get_endpoint(snd, arg); - break; - - default: - pr_err("snd_ioctl unknown command.\n"); - rc = -EINVAL; - break; - } - mutex_unlock(&snd->lock); - - return rc; -} - -static int snd_release(struct inode *inode, struct file *file) -{ - struct snd_ctxt *snd = file->private_data; - - mutex_lock(&snd->lock); - snd->opened = 0; - mutex_unlock(&snd->lock); - return 0; -} - -static int snd_open(struct inode *inode, struct file *file) -{ - struct snd_ctxt *snd = &the_snd; - int rc = 0; - - mutex_lock(&snd->lock); - if (snd->opened == 0) { - if (snd->ept == NULL) { - snd->ept = msm_rpc_connect(RPC_SND_PROG, RPC_SND_VERS, - MSM_RPC_UNINTERRUPTIBLE); - if (IS_ERR(snd->ept)) { - rc = PTR_ERR(snd->ept); - snd->ept = NULL; - pr_err("snd: failed to connect snd svc\n"); - goto err; - } - } - file->private_data = snd; - snd->opened = 1; - } else { - pr_err("snd already opened.\n"); - rc = -EBUSY; - } - -err: - mutex_unlock(&snd->lock); - return rc; -} - -static struct file_operations snd_fops = { - .owner = THIS_MODULE, - .open = snd_open, - .release = snd_release, - .unlocked_ioctl = snd_ioctl, - .llseek = noop_llseek, -}; - -struct miscdevice snd_misc = { - .minor = MISC_DYNAMIC_MINOR, - .name = "msm_snd", - .fops = &snd_fops, -}; - -static int snd_probe(struct platform_device *pdev) -{ - struct snd_ctxt *snd = &the_snd; - mutex_init(&snd->lock); - snd->snd_epts = (struct msm_snd_endpoints *)pdev->dev.platform_data; - return misc_register(&snd_misc); -} - -static struct platform_driver snd_plat_driver = { - .probe = snd_probe, - .driver = { - .name = "msm_snd", - .owner = THIS_MODULE, - }, -}; - -static int __init snd_init(void) -{ - return platform_driver_register(&snd_plat_driver); -} - -module_init(snd_init); |