Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1 | /* Copyright (c) 2014, 2016-2017 The Linux Foundation. All rights reserved. |
| 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/kernel.h> |
| 14 | #include <linux/platform_device.h> |
| 15 | #include <linux/err.h> |
| 16 | #include <linux/module.h> |
| 17 | #include <sound/hwdep.h> |
| 18 | #include <sound/devdep_params.h> |
| 19 | #include "msm-pcm-routing-devdep.h" |
| 20 | #include "msm-ds2-dap-config.h" |
| 21 | |
| 22 | #ifdef CONFIG_SND_HWDEP |
| 23 | static int msm_pcm_routing_hwdep_open(struct snd_hwdep *hw, struct file *file) |
| 24 | { |
| 25 | pr_debug("%s\n", __func__); |
| 26 | msm_ds2_dap_update_port_parameters(hw, file, true); |
| 27 | return 0; |
| 28 | } |
| 29 | |
| 30 | static int msm_pcm_routing_hwdep_release(struct snd_hwdep *hw, |
| 31 | struct file *file) |
| 32 | { |
| 33 | pr_debug("%s\n", __func__); |
| 34 | msm_ds2_dap_update_port_parameters(hw, file, false); |
| 35 | return 0; |
| 36 | } |
| 37 | |
| 38 | static int msm_pcm_routing_hwdep_ioctl(struct snd_hwdep *hw, struct file *file, |
| 39 | unsigned int cmd, unsigned long arg) |
| 40 | { |
| 41 | int ret = 0; |
| 42 | void __user *argp = (void __user *)arg; |
| 43 | |
| 44 | pr_debug("%s:cmd %x\n", __func__, cmd); |
| 45 | switch (cmd) { |
| 46 | case SNDRV_DEVDEP_DAP_IOCTL_SET_PARAM: |
| 47 | case SNDRV_DEVDEP_DAP_IOCTL_GET_PARAM: |
| 48 | case SNDRV_DEVDEP_DAP_IOCTL_DAP_COMMAND: |
| 49 | case SNDRV_DEVDEP_DAP_IOCTL_DAP_LICENSE: |
| 50 | msm_pcm_routing_acquire_lock(); |
| 51 | ret = msm_ds2_dap_ioctl(hw, file, cmd, argp); |
| 52 | msm_pcm_routing_release_lock(); |
| 53 | break; |
| 54 | case SNDRV_DEVDEP_DAP_IOCTL_GET_VISUALIZER: |
| 55 | ret = msm_ds2_dap_ioctl(hw, file, cmd, argp); |
| 56 | break; |
| 57 | default: |
| 58 | pr_err("%s called with invalid control 0x%X\n", __func__, cmd); |
| 59 | ret = -EINVAL; |
| 60 | break; |
| 61 | } |
| 62 | return ret; |
| 63 | } |
| 64 | |
| 65 | void msm_pcm_routing_hwdep_free(struct snd_pcm *pcm) |
| 66 | { |
| 67 | pr_debug("%s\n", __func__); |
| 68 | } |
| 69 | |
| 70 | #ifdef CONFIG_COMPAT |
| 71 | static int msm_pcm_routing_hwdep_compat_ioctl(struct snd_hwdep *hw, |
| 72 | struct file *file, |
| 73 | unsigned int cmd, |
| 74 | unsigned long arg) |
| 75 | { |
| 76 | int ret = 0; |
| 77 | void __user *argp = (void __user *)arg; |
| 78 | |
| 79 | pr_debug("%s:cmd %x\n", __func__, cmd); |
| 80 | switch (cmd) { |
| 81 | case SNDRV_DEVDEP_DAP_IOCTL_SET_PARAM32: |
| 82 | case SNDRV_DEVDEP_DAP_IOCTL_GET_PARAM32: |
| 83 | case SNDRV_DEVDEP_DAP_IOCTL_DAP_COMMAND32: |
| 84 | case SNDRV_DEVDEP_DAP_IOCTL_DAP_LICENSE32: |
| 85 | msm_pcm_routing_acquire_lock(); |
| 86 | ret = msm_ds2_dap_compat_ioctl(hw, file, cmd, argp); |
| 87 | msm_pcm_routing_release_lock(); |
| 88 | break; |
| 89 | case SNDRV_DEVDEP_DAP_IOCTL_GET_VISUALIZER32: |
| 90 | ret = msm_ds2_dap_compat_ioctl(hw, file, cmd, argp); |
| 91 | break; |
| 92 | default: |
| 93 | pr_err("%s called with invalid control 0x%X\n", __func__, cmd); |
| 94 | ret = -EINVAL; |
| 95 | break; |
| 96 | } |
| 97 | return ret; |
| 98 | } |
| 99 | #endif |
| 100 | |
| 101 | int msm_pcm_routing_hwdep_new(struct snd_soc_pcm_runtime *runtime, |
| 102 | struct msm_pcm_routing_bdai_data *msm_bedais) |
| 103 | { |
| 104 | struct snd_hwdep *hwdep; |
| 105 | struct snd_soc_dai_link *dai_link = runtime->dai_link; |
| 106 | int rc; |
| 107 | |
| 108 | if (dai_link->id < 0 || |
| 109 | dai_link->id >= MSM_BACKEND_DAI_MAX) { |
| 110 | pr_err("%s:BE id %d invalid index\n", |
| 111 | __func__, dai_link->id); |
| 112 | return -EINVAL; |
| 113 | } |
| 114 | pr_debug("%s BE id %d\n", __func__, dai_link->id); |
| 115 | rc = snd_hwdep_new(runtime->card->snd_card, |
| 116 | msm_bedais[dai_link->id].name, |
| 117 | dai_link->id, &hwdep); |
| 118 | if (hwdep == NULL) { |
| 119 | pr_err("%s: hwdep intf failed to create %s- hwdep NULL\n", |
| 120 | __func__, msm_bedais[dai_link->id].name); |
| 121 | return rc; |
| 122 | } |
| 123 | if (rc < 0) { |
| 124 | pr_err("%s: hwdep intf failed to create %s rc %d\n", __func__, |
| 125 | msm_bedais[dai_link->id].name, rc); |
| 126 | return rc; |
| 127 | } |
| 128 | |
| 129 | hwdep->iface = SNDRV_HWDEP_IFACE_AUDIO_BE; |
| 130 | hwdep->private_data = &msm_bedais[dai_link->id]; |
| 131 | hwdep->ops.open = msm_pcm_routing_hwdep_open; |
| 132 | hwdep->ops.ioctl = msm_pcm_routing_hwdep_ioctl; |
| 133 | hwdep->ops.release = msm_pcm_routing_hwdep_release; |
| 134 | #ifdef CONFIG_COMPAT |
| 135 | hwdep->ops.ioctl_compat = msm_pcm_routing_hwdep_compat_ioctl; |
| 136 | #endif |
| 137 | return rc; |
| 138 | } |
| 139 | #endif |