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122 lines
3.9 KiB
122 lines
3.9 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* 32bit -> 64bit ioctl wrapper for sequencer API |
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* Copyright (c) by Takashi Iwai <[email protected]> |
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*/ |
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/* This file included from seq.c */ |
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#include <linux/compat.h> |
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#include <linux/slab.h> |
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struct snd_seq_port_info32 { |
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struct snd_seq_addr addr; /* client/port numbers */ |
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char name[64]; /* port name */ |
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u32 capability; /* port capability bits */ |
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u32 type; /* port type bits */ |
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s32 midi_channels; /* channels per MIDI port */ |
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s32 midi_voices; /* voices per MIDI port */ |
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s32 synth_voices; /* voices per SYNTH port */ |
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s32 read_use; /* R/O: subscribers for output (from this port) */ |
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s32 write_use; /* R/O: subscribers for input (to this port) */ |
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u32 kernel; /* reserved for kernel use (must be NULL) */ |
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u32 flags; /* misc. conditioning */ |
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unsigned char time_queue; /* queue # for timestamping */ |
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char reserved[59]; /* for future use */ |
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}; |
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static int snd_seq_call_port_info_ioctl(struct snd_seq_client *client, unsigned int cmd, |
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struct snd_seq_port_info32 __user *data32) |
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{ |
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int err = -EFAULT; |
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struct snd_seq_port_info *data; |
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data = kmalloc(sizeof(*data), GFP_KERNEL); |
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if (!data) |
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return -ENOMEM; |
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if (copy_from_user(data, data32, sizeof(*data32)) || |
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get_user(data->flags, &data32->flags) || |
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get_user(data->time_queue, &data32->time_queue)) |
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goto error; |
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data->kernel = NULL; |
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err = snd_seq_kernel_client_ctl(client->number, cmd, data); |
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if (err < 0) |
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goto error; |
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if (copy_to_user(data32, data, sizeof(*data32)) || |
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put_user(data->flags, &data32->flags) || |
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put_user(data->time_queue, &data32->time_queue)) |
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err = -EFAULT; |
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error: |
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kfree(data); |
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return err; |
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} |
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/* |
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*/ |
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enum { |
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SNDRV_SEQ_IOCTL_CREATE_PORT32 = _IOWR('S', 0x20, struct snd_seq_port_info32), |
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SNDRV_SEQ_IOCTL_DELETE_PORT32 = _IOW ('S', 0x21, struct snd_seq_port_info32), |
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SNDRV_SEQ_IOCTL_GET_PORT_INFO32 = _IOWR('S', 0x22, struct snd_seq_port_info32), |
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SNDRV_SEQ_IOCTL_SET_PORT_INFO32 = _IOW ('S', 0x23, struct snd_seq_port_info32), |
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SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT32 = _IOWR('S', 0x52, struct snd_seq_port_info32), |
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}; |
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static long snd_seq_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg) |
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{ |
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struct snd_seq_client *client = file->private_data; |
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void __user *argp = compat_ptr(arg); |
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if (snd_BUG_ON(!client)) |
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return -ENXIO; |
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switch (cmd) { |
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case SNDRV_SEQ_IOCTL_PVERSION: |
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case SNDRV_SEQ_IOCTL_CLIENT_ID: |
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case SNDRV_SEQ_IOCTL_SYSTEM_INFO: |
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case SNDRV_SEQ_IOCTL_GET_CLIENT_INFO: |
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case SNDRV_SEQ_IOCTL_SET_CLIENT_INFO: |
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case SNDRV_SEQ_IOCTL_SUBSCRIBE_PORT: |
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case SNDRV_SEQ_IOCTL_UNSUBSCRIBE_PORT: |
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case SNDRV_SEQ_IOCTL_CREATE_QUEUE: |
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case SNDRV_SEQ_IOCTL_DELETE_QUEUE: |
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case SNDRV_SEQ_IOCTL_GET_QUEUE_INFO: |
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case SNDRV_SEQ_IOCTL_SET_QUEUE_INFO: |
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case SNDRV_SEQ_IOCTL_GET_NAMED_QUEUE: |
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case SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS: |
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case SNDRV_SEQ_IOCTL_GET_QUEUE_TEMPO: |
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case SNDRV_SEQ_IOCTL_SET_QUEUE_TEMPO: |
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case SNDRV_SEQ_IOCTL_GET_QUEUE_TIMER: |
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case SNDRV_SEQ_IOCTL_SET_QUEUE_TIMER: |
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case SNDRV_SEQ_IOCTL_GET_QUEUE_CLIENT: |
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case SNDRV_SEQ_IOCTL_SET_QUEUE_CLIENT: |
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case SNDRV_SEQ_IOCTL_GET_CLIENT_POOL: |
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case SNDRV_SEQ_IOCTL_SET_CLIENT_POOL: |
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case SNDRV_SEQ_IOCTL_REMOVE_EVENTS: |
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case SNDRV_SEQ_IOCTL_QUERY_SUBS: |
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case SNDRV_SEQ_IOCTL_GET_SUBSCRIPTION: |
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case SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT: |
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case SNDRV_SEQ_IOCTL_RUNNING_MODE: |
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return snd_seq_ioctl(file, cmd, arg); |
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case SNDRV_SEQ_IOCTL_CREATE_PORT32: |
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return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_CREATE_PORT, argp); |
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case SNDRV_SEQ_IOCTL_DELETE_PORT32: |
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return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_DELETE_PORT, argp); |
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case SNDRV_SEQ_IOCTL_GET_PORT_INFO32: |
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return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_GET_PORT_INFO, argp); |
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case SNDRV_SEQ_IOCTL_SET_PORT_INFO32: |
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return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_SET_PORT_INFO, argp); |
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case SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT32: |
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return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT, argp); |
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} |
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return -ENOIOCTLCMD; |
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}
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