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![Takashi Iwai](/assets/img/avatar_default.png)
Now snd_rawmidi_ops is maintained as a const pointer in snd_rawmidi, we can constify the definitions. Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
1071 lines
26 KiB
C
1071 lines
26 KiB
C
/*
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* ALSA Driver for Ego Systems Inc. (ESI) Miditerminal 4140
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* Copyright (c) 2006 by Matthias König <mk@phasorlab.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/parport.h>
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#include <linux/spinlock.h>
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#include <linux/module.h>
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <sound/core.h>
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#include <sound/initval.h>
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#include <sound/rawmidi.h>
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#include <sound/control.h>
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#define CARD_NAME "Miditerminal 4140"
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#define DRIVER_NAME "MTS64"
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#define PLATFORM_DRIVER "snd_mts64"
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static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
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static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
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static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
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static struct platform_device *platform_devices[SNDRV_CARDS];
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static int device_count;
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module_param_array(index, int, NULL, S_IRUGO);
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MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
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module_param_array(id, charp, NULL, S_IRUGO);
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MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
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module_param_array(enable, bool, NULL, S_IRUGO);
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MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard.");
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MODULE_AUTHOR("Matthias Koenig <mk@phasorlab.de>");
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MODULE_DESCRIPTION("ESI Miditerminal 4140");
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MODULE_LICENSE("GPL");
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MODULE_SUPPORTED_DEVICE("{{ESI,Miditerminal 4140}}");
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/*********************************************************************
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* Chip specific
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*********************************************************************/
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#define MTS64_NUM_INPUT_PORTS 5
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#define MTS64_NUM_OUTPUT_PORTS 4
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#define MTS64_SMPTE_SUBSTREAM 4
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struct mts64 {
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spinlock_t lock;
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struct snd_card *card;
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struct snd_rawmidi *rmidi;
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struct pardevice *pardev;
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int open_count;
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int current_midi_output_port;
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int current_midi_input_port;
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u8 mode[MTS64_NUM_INPUT_PORTS];
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struct snd_rawmidi_substream *midi_input_substream[MTS64_NUM_INPUT_PORTS];
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int smpte_switch;
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u8 time[4]; /* [0]=hh, [1]=mm, [2]=ss, [3]=ff */
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u8 fps;
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};
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static int snd_mts64_free(struct mts64 *mts)
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{
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kfree(mts);
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return 0;
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}
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static int snd_mts64_create(struct snd_card *card,
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struct pardevice *pardev,
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struct mts64 **rchip)
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{
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struct mts64 *mts;
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*rchip = NULL;
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mts = kzalloc(sizeof(struct mts64), GFP_KERNEL);
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if (mts == NULL)
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return -ENOMEM;
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/* Init chip specific data */
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spin_lock_init(&mts->lock);
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mts->card = card;
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mts->pardev = pardev;
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mts->current_midi_output_port = -1;
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mts->current_midi_input_port = -1;
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*rchip = mts;
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return 0;
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}
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/*********************************************************************
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* HW register related constants
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*********************************************************************/
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/* Status Bits */
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#define MTS64_STAT_BSY 0x80
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#define MTS64_STAT_BIT_SET 0x20 /* readout process, bit is set */
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#define MTS64_STAT_PORT 0x10 /* read byte is a port number */
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/* Control Bits */
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#define MTS64_CTL_READOUT 0x08 /* enable readout */
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#define MTS64_CTL_WRITE_CMD 0x06
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#define MTS64_CTL_WRITE_DATA 0x02
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#define MTS64_CTL_STROBE 0x01
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/* Command */
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#define MTS64_CMD_RESET 0xfe
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#define MTS64_CMD_PROBE 0x8f /* Used in probing procedure */
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#define MTS64_CMD_SMPTE_SET_TIME 0xe8
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#define MTS64_CMD_SMPTE_SET_FPS 0xee
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#define MTS64_CMD_SMPTE_STOP 0xef
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#define MTS64_CMD_SMPTE_FPS_24 0xe3
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#define MTS64_CMD_SMPTE_FPS_25 0xe2
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#define MTS64_CMD_SMPTE_FPS_2997 0xe4
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#define MTS64_CMD_SMPTE_FPS_30D 0xe1
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#define MTS64_CMD_SMPTE_FPS_30 0xe0
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#define MTS64_CMD_COM_OPEN 0xf8 /* setting the communication mode */
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#define MTS64_CMD_COM_CLOSE1 0xff /* clearing communication mode */
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#define MTS64_CMD_COM_CLOSE2 0xf5
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/*********************************************************************
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* Hardware specific functions
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*********************************************************************/
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static void mts64_enable_readout(struct parport *p);
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static void mts64_disable_readout(struct parport *p);
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static int mts64_device_ready(struct parport *p);
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static int mts64_device_init(struct parport *p);
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static int mts64_device_open(struct mts64 *mts);
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static int mts64_device_close(struct mts64 *mts);
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static u8 mts64_map_midi_input(u8 c);
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static int mts64_probe(struct parport *p);
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static u16 mts64_read(struct parport *p);
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static u8 mts64_read_char(struct parport *p);
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static void mts64_smpte_start(struct parport *p,
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u8 hours, u8 minutes,
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u8 seconds, u8 frames,
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u8 idx);
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static void mts64_smpte_stop(struct parport *p);
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static void mts64_write_command(struct parport *p, u8 c);
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static void mts64_write_data(struct parport *p, u8 c);
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static void mts64_write_midi(struct mts64 *mts, u8 c, int midiport);
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/* Enables the readout procedure
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*
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* Before we can read a midi byte from the device, we have to set
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* bit 3 of control port.
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*/
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static void mts64_enable_readout(struct parport *p)
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{
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u8 c;
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c = parport_read_control(p);
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c |= MTS64_CTL_READOUT;
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parport_write_control(p, c);
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}
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/* Disables readout
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*
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* Readout is disabled by clearing bit 3 of control
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*/
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static void mts64_disable_readout(struct parport *p)
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{
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u8 c;
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c = parport_read_control(p);
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c &= ~MTS64_CTL_READOUT;
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parport_write_control(p, c);
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}
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/* waits for device ready
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*
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* Checks if BUSY (Bit 7 of status) is clear
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* 1 device ready
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* 0 failure
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*/
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static int mts64_device_ready(struct parport *p)
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{
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int i;
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u8 c;
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for (i = 0; i < 0xffff; ++i) {
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c = parport_read_status(p);
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c &= MTS64_STAT_BSY;
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if (c != 0)
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return 1;
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}
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return 0;
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}
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/* Init device (LED blinking startup magic)
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*
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* Returns:
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* 0 init ok
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* -EIO failure
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*/
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static int mts64_device_init(struct parport *p)
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{
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int i;
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mts64_write_command(p, MTS64_CMD_RESET);
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for (i = 0; i < 64; ++i) {
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msleep(100);
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if (mts64_probe(p) == 0) {
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/* success */
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mts64_disable_readout(p);
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return 0;
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}
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}
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mts64_disable_readout(p);
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return -EIO;
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}
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/*
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* Opens the device (set communication mode)
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*/
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static int mts64_device_open(struct mts64 *mts)
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{
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int i;
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struct parport *p = mts->pardev->port;
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for (i = 0; i < 5; ++i)
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mts64_write_command(p, MTS64_CMD_COM_OPEN);
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return 0;
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}
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/*
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* Close device (clear communication mode)
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*/
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static int mts64_device_close(struct mts64 *mts)
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{
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int i;
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struct parport *p = mts->pardev->port;
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for (i = 0; i < 5; ++i) {
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mts64_write_command(p, MTS64_CMD_COM_CLOSE1);
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mts64_write_command(p, MTS64_CMD_COM_CLOSE2);
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}
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return 0;
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}
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/* map hardware port to substream number
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*
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* When reading a byte from the device, the device tells us
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* on what port the byte is. This HW port has to be mapped to
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* the midiport (substream number).
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* substream 0-3 are Midiports 1-4
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* substream 4 is SMPTE Timecode
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* The mapping is done by the table:
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* HW | 0 | 1 | 2 | 3 | 4
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* SW | 0 | 1 | 4 | 2 | 3
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*/
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static u8 mts64_map_midi_input(u8 c)
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{
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static u8 map[] = { 0, 1, 4, 2, 3 };
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return map[c];
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}
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/* Probe parport for device
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*
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* Do we have a Miditerminal 4140 on parport?
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* Returns:
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* 0 device found
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* -ENODEV no device
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*/
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static int mts64_probe(struct parport *p)
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{
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u8 c;
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mts64_smpte_stop(p);
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mts64_write_command(p, MTS64_CMD_PROBE);
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msleep(50);
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c = mts64_read(p);
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c &= 0x00ff;
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if (c != MTS64_CMD_PROBE)
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return -ENODEV;
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else
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return 0;
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}
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/* Read byte incl. status from device
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*
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* Returns:
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* data in lower 8 bits and status in upper 8 bits
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*/
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static u16 mts64_read(struct parport *p)
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{
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u8 data, status;
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mts64_device_ready(p);
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mts64_enable_readout(p);
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status = parport_read_status(p);
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data = mts64_read_char(p);
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mts64_disable_readout(p);
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return (status << 8) | data;
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}
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/* Read a byte from device
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*
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* Note, that readout mode has to be enabled.
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* readout procedure is as follows:
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* - Write number of the Bit to read to DATA
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* - Read STATUS
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* - Bit 5 of STATUS indicates if Bit is set
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*
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* Returns:
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* Byte read from device
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*/
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static u8 mts64_read_char(struct parport *p)
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{
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u8 c = 0;
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u8 status;
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u8 i;
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for (i = 0; i < 8; ++i) {
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parport_write_data(p, i);
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c >>= 1;
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status = parport_read_status(p);
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if (status & MTS64_STAT_BIT_SET)
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c |= 0x80;
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}
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return c;
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}
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/* Starts SMPTE Timecode generation
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*
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* The device creates SMPTE Timecode by hardware.
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* 0 24 fps
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* 1 25 fps
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* 2 29.97 fps
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* 3 30 fps (Drop-frame)
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* 4 30 fps
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*/
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static void mts64_smpte_start(struct parport *p,
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u8 hours, u8 minutes,
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u8 seconds, u8 frames,
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u8 idx)
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{
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static u8 fps[5] = { MTS64_CMD_SMPTE_FPS_24,
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MTS64_CMD_SMPTE_FPS_25,
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MTS64_CMD_SMPTE_FPS_2997,
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MTS64_CMD_SMPTE_FPS_30D,
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MTS64_CMD_SMPTE_FPS_30 };
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mts64_write_command(p, MTS64_CMD_SMPTE_SET_TIME);
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mts64_write_command(p, frames);
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mts64_write_command(p, seconds);
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mts64_write_command(p, minutes);
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mts64_write_command(p, hours);
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mts64_write_command(p, MTS64_CMD_SMPTE_SET_FPS);
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mts64_write_command(p, fps[idx]);
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}
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/* Stops SMPTE Timecode generation
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*/
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static void mts64_smpte_stop(struct parport *p)
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{
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mts64_write_command(p, MTS64_CMD_SMPTE_STOP);
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}
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/* Write a command byte to device
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*/
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static void mts64_write_command(struct parport *p, u8 c)
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{
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mts64_device_ready(p);
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parport_write_data(p, c);
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parport_write_control(p, MTS64_CTL_WRITE_CMD);
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parport_write_control(p, MTS64_CTL_WRITE_CMD | MTS64_CTL_STROBE);
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parport_write_control(p, MTS64_CTL_WRITE_CMD);
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}
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/* Write a data byte to device
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*/
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static void mts64_write_data(struct parport *p, u8 c)
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{
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mts64_device_ready(p);
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parport_write_data(p, c);
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parport_write_control(p, MTS64_CTL_WRITE_DATA);
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parport_write_control(p, MTS64_CTL_WRITE_DATA | MTS64_CTL_STROBE);
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parport_write_control(p, MTS64_CTL_WRITE_DATA);
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}
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/* Write a MIDI byte to midiport
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*
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* midiport ranges from 0-3 and maps to Ports 1-4
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* assumptions: communication mode is on
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*/
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static void mts64_write_midi(struct mts64 *mts, u8 c,
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int midiport)
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{
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struct parport *p = mts->pardev->port;
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/* check current midiport */
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if (mts->current_midi_output_port != midiport)
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mts64_write_command(p, midiport);
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/* write midi byte */
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mts64_write_data(p, c);
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}
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/*********************************************************************
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* Control elements
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*********************************************************************/
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/* SMPTE Switch */
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#define snd_mts64_ctl_smpte_switch_info snd_ctl_boolean_mono_info
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static int snd_mts64_ctl_smpte_switch_get(struct snd_kcontrol* kctl,
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struct snd_ctl_elem_value *uctl)
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{
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struct mts64 *mts = snd_kcontrol_chip(kctl);
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spin_lock_irq(&mts->lock);
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uctl->value.integer.value[0] = mts->smpte_switch;
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spin_unlock_irq(&mts->lock);
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return 0;
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}
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/* smpte_switch is not accessed from IRQ handler, so we just need
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to protect the HW access */
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static int snd_mts64_ctl_smpte_switch_put(struct snd_kcontrol* kctl,
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struct snd_ctl_elem_value *uctl)
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{
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struct mts64 *mts = snd_kcontrol_chip(kctl);
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int changed = 0;
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int val = !!uctl->value.integer.value[0];
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spin_lock_irq(&mts->lock);
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if (mts->smpte_switch == val)
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goto __out;
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changed = 1;
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mts->smpte_switch = val;
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if (mts->smpte_switch) {
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mts64_smpte_start(mts->pardev->port,
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mts->time[0], mts->time[1],
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mts->time[2], mts->time[3],
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mts->fps);
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} else {
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mts64_smpte_stop(mts->pardev->port);
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}
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__out:
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spin_unlock_irq(&mts->lock);
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return changed;
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}
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|
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static struct snd_kcontrol_new mts64_ctl_smpte_switch = {
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.iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI,
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.name = "SMPTE Playback Switch",
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.index = 0,
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.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
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.private_value = 0,
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.info = snd_mts64_ctl_smpte_switch_info,
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.get = snd_mts64_ctl_smpte_switch_get,
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.put = snd_mts64_ctl_smpte_switch_put
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};
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|
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/* Time */
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static int snd_mts64_ctl_smpte_time_h_info(struct snd_kcontrol *kctl,
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struct snd_ctl_elem_info *uinfo)
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{
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uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
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uinfo->count = 1;
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uinfo->value.integer.min = 0;
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uinfo->value.integer.max = 23;
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return 0;
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}
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|
|
static int snd_mts64_ctl_smpte_time_f_info(struct snd_kcontrol *kctl,
|
|
struct snd_ctl_elem_info *uinfo)
|
|
{
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
|
|
uinfo->count = 1;
|
|
uinfo->value.integer.min = 0;
|
|
uinfo->value.integer.max = 99;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_mts64_ctl_smpte_time_info(struct snd_kcontrol *kctl,
|
|
struct snd_ctl_elem_info *uinfo)
|
|
{
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
|
|
uinfo->count = 1;
|
|
uinfo->value.integer.min = 0;
|
|
uinfo->value.integer.max = 59;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_mts64_ctl_smpte_time_get(struct snd_kcontrol *kctl,
|
|
struct snd_ctl_elem_value *uctl)
|
|
{
|
|
struct mts64 *mts = snd_kcontrol_chip(kctl);
|
|
int idx = kctl->private_value;
|
|
|
|
spin_lock_irq(&mts->lock);
|
|
uctl->value.integer.value[0] = mts->time[idx];
|
|
spin_unlock_irq(&mts->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int snd_mts64_ctl_smpte_time_put(struct snd_kcontrol *kctl,
|
|
struct snd_ctl_elem_value *uctl)
|
|
{
|
|
struct mts64 *mts = snd_kcontrol_chip(kctl);
|
|
int idx = kctl->private_value;
|
|
unsigned int time = uctl->value.integer.value[0] % 60;
|
|
int changed = 0;
|
|
|
|
spin_lock_irq(&mts->lock);
|
|
if (mts->time[idx] != time) {
|
|
changed = 1;
|
|
mts->time[idx] = time;
|
|
}
|
|
spin_unlock_irq(&mts->lock);
|
|
|
|
return changed;
|
|
}
|
|
|
|
static struct snd_kcontrol_new mts64_ctl_smpte_time_hours = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI,
|
|
.name = "SMPTE Time Hours",
|
|
.index = 0,
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
|
|
.private_value = 0,
|
|
.info = snd_mts64_ctl_smpte_time_h_info,
|
|
.get = snd_mts64_ctl_smpte_time_get,
|
|
.put = snd_mts64_ctl_smpte_time_put
|
|
};
|
|
|
|
static struct snd_kcontrol_new mts64_ctl_smpte_time_minutes = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI,
|
|
.name = "SMPTE Time Minutes",
|
|
.index = 0,
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
|
|
.private_value = 1,
|
|
.info = snd_mts64_ctl_smpte_time_info,
|
|
.get = snd_mts64_ctl_smpte_time_get,
|
|
.put = snd_mts64_ctl_smpte_time_put
|
|
};
|
|
|
|
static struct snd_kcontrol_new mts64_ctl_smpte_time_seconds = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI,
|
|
.name = "SMPTE Time Seconds",
|
|
.index = 0,
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
|
|
.private_value = 2,
|
|
.info = snd_mts64_ctl_smpte_time_info,
|
|
.get = snd_mts64_ctl_smpte_time_get,
|
|
.put = snd_mts64_ctl_smpte_time_put
|
|
};
|
|
|
|
static struct snd_kcontrol_new mts64_ctl_smpte_time_frames = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI,
|
|
.name = "SMPTE Time Frames",
|
|
.index = 0,
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
|
|
.private_value = 3,
|
|
.info = snd_mts64_ctl_smpte_time_f_info,
|
|
.get = snd_mts64_ctl_smpte_time_get,
|
|
.put = snd_mts64_ctl_smpte_time_put
|
|
};
|
|
|
|
/* FPS */
|
|
static int snd_mts64_ctl_smpte_fps_info(struct snd_kcontrol *kctl,
|
|
struct snd_ctl_elem_info *uinfo)
|
|
{
|
|
static const char * const texts[5] = {
|
|
"24", "25", "29.97", "30D", "30"
|
|
};
|
|
|
|
return snd_ctl_enum_info(uinfo, 1, 5, texts);
|
|
}
|
|
|
|
static int snd_mts64_ctl_smpte_fps_get(struct snd_kcontrol *kctl,
|
|
struct snd_ctl_elem_value *uctl)
|
|
{
|
|
struct mts64 *mts = snd_kcontrol_chip(kctl);
|
|
|
|
spin_lock_irq(&mts->lock);
|
|
uctl->value.enumerated.item[0] = mts->fps;
|
|
spin_unlock_irq(&mts->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int snd_mts64_ctl_smpte_fps_put(struct snd_kcontrol *kctl,
|
|
struct snd_ctl_elem_value *uctl)
|
|
{
|
|
struct mts64 *mts = snd_kcontrol_chip(kctl);
|
|
int changed = 0;
|
|
|
|
if (uctl->value.enumerated.item[0] >= 5)
|
|
return -EINVAL;
|
|
spin_lock_irq(&mts->lock);
|
|
if (mts->fps != uctl->value.enumerated.item[0]) {
|
|
changed = 1;
|
|
mts->fps = uctl->value.enumerated.item[0];
|
|
}
|
|
spin_unlock_irq(&mts->lock);
|
|
|
|
return changed;
|
|
}
|
|
|
|
static struct snd_kcontrol_new mts64_ctl_smpte_fps = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI,
|
|
.name = "SMPTE Fps",
|
|
.index = 0,
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
|
|
.private_value = 0,
|
|
.info = snd_mts64_ctl_smpte_fps_info,
|
|
.get = snd_mts64_ctl_smpte_fps_get,
|
|
.put = snd_mts64_ctl_smpte_fps_put
|
|
};
|
|
|
|
|
|
static int snd_mts64_ctl_create(struct snd_card *card,
|
|
struct mts64 *mts)
|
|
{
|
|
int err, i;
|
|
static struct snd_kcontrol_new *control[] = {
|
|
&mts64_ctl_smpte_switch,
|
|
&mts64_ctl_smpte_time_hours,
|
|
&mts64_ctl_smpte_time_minutes,
|
|
&mts64_ctl_smpte_time_seconds,
|
|
&mts64_ctl_smpte_time_frames,
|
|
&mts64_ctl_smpte_fps,
|
|
NULL };
|
|
|
|
for (i = 0; control[i]; ++i) {
|
|
err = snd_ctl_add(card, snd_ctl_new1(control[i], mts));
|
|
if (err < 0) {
|
|
snd_printd("Cannot create control: %s\n",
|
|
control[i]->name);
|
|
return err;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*********************************************************************
|
|
* Rawmidi
|
|
*********************************************************************/
|
|
#define MTS64_MODE_INPUT_TRIGGERED 0x01
|
|
|
|
static int snd_mts64_rawmidi_open(struct snd_rawmidi_substream *substream)
|
|
{
|
|
struct mts64 *mts = substream->rmidi->private_data;
|
|
|
|
if (mts->open_count == 0) {
|
|
/* We don't need a spinlock here, because this is just called
|
|
if the device has not been opened before.
|
|
So there aren't any IRQs from the device */
|
|
mts64_device_open(mts);
|
|
|
|
msleep(50);
|
|
}
|
|
++(mts->open_count);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int snd_mts64_rawmidi_close(struct snd_rawmidi_substream *substream)
|
|
{
|
|
struct mts64 *mts = substream->rmidi->private_data;
|
|
unsigned long flags;
|
|
|
|
--(mts->open_count);
|
|
if (mts->open_count == 0) {
|
|
/* We need the spinlock_irqsave here because we can still
|
|
have IRQs at this point */
|
|
spin_lock_irqsave(&mts->lock, flags);
|
|
mts64_device_close(mts);
|
|
spin_unlock_irqrestore(&mts->lock, flags);
|
|
|
|
msleep(500);
|
|
|
|
} else if (mts->open_count < 0)
|
|
mts->open_count = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void snd_mts64_rawmidi_output_trigger(struct snd_rawmidi_substream *substream,
|
|
int up)
|
|
{
|
|
struct mts64 *mts = substream->rmidi->private_data;
|
|
u8 data;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&mts->lock, flags);
|
|
while (snd_rawmidi_transmit_peek(substream, &data, 1) == 1) {
|
|
mts64_write_midi(mts, data, substream->number+1);
|
|
snd_rawmidi_transmit_ack(substream, 1);
|
|
}
|
|
spin_unlock_irqrestore(&mts->lock, flags);
|
|
}
|
|
|
|
static void snd_mts64_rawmidi_input_trigger(struct snd_rawmidi_substream *substream,
|
|
int up)
|
|
{
|
|
struct mts64 *mts = substream->rmidi->private_data;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&mts->lock, flags);
|
|
if (up)
|
|
mts->mode[substream->number] |= MTS64_MODE_INPUT_TRIGGERED;
|
|
else
|
|
mts->mode[substream->number] &= ~MTS64_MODE_INPUT_TRIGGERED;
|
|
|
|
spin_unlock_irqrestore(&mts->lock, flags);
|
|
}
|
|
|
|
static const struct snd_rawmidi_ops snd_mts64_rawmidi_output_ops = {
|
|
.open = snd_mts64_rawmidi_open,
|
|
.close = snd_mts64_rawmidi_close,
|
|
.trigger = snd_mts64_rawmidi_output_trigger
|
|
};
|
|
|
|
static const struct snd_rawmidi_ops snd_mts64_rawmidi_input_ops = {
|
|
.open = snd_mts64_rawmidi_open,
|
|
.close = snd_mts64_rawmidi_close,
|
|
.trigger = snd_mts64_rawmidi_input_trigger
|
|
};
|
|
|
|
/* Create and initialize the rawmidi component */
|
|
static int snd_mts64_rawmidi_create(struct snd_card *card)
|
|
{
|
|
struct mts64 *mts = card->private_data;
|
|
struct snd_rawmidi *rmidi;
|
|
struct snd_rawmidi_substream *substream;
|
|
struct list_head *list;
|
|
int err;
|
|
|
|
err = snd_rawmidi_new(card, CARD_NAME, 0,
|
|
MTS64_NUM_OUTPUT_PORTS,
|
|
MTS64_NUM_INPUT_PORTS,
|
|
&rmidi);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
rmidi->private_data = mts;
|
|
strcpy(rmidi->name, CARD_NAME);
|
|
rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT |
|
|
SNDRV_RAWMIDI_INFO_INPUT |
|
|
SNDRV_RAWMIDI_INFO_DUPLEX;
|
|
|
|
mts->rmidi = rmidi;
|
|
|
|
/* register rawmidi ops */
|
|
snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT,
|
|
&snd_mts64_rawmidi_output_ops);
|
|
snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT,
|
|
&snd_mts64_rawmidi_input_ops);
|
|
|
|
/* name substreams */
|
|
/* output */
|
|
list_for_each(list,
|
|
&rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams) {
|
|
substream = list_entry(list, struct snd_rawmidi_substream, list);
|
|
sprintf(substream->name,
|
|
"Miditerminal %d", substream->number+1);
|
|
}
|
|
/* input */
|
|
list_for_each(list,
|
|
&rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams) {
|
|
substream = list_entry(list, struct snd_rawmidi_substream, list);
|
|
mts->midi_input_substream[substream->number] = substream;
|
|
switch(substream->number) {
|
|
case MTS64_SMPTE_SUBSTREAM:
|
|
strcpy(substream->name, "Miditerminal SMPTE");
|
|
break;
|
|
default:
|
|
sprintf(substream->name,
|
|
"Miditerminal %d", substream->number+1);
|
|
}
|
|
}
|
|
|
|
/* controls */
|
|
err = snd_mts64_ctl_create(card, mts);
|
|
|
|
return err;
|
|
}
|
|
|
|
/*********************************************************************
|
|
* parport stuff
|
|
*********************************************************************/
|
|
static void snd_mts64_interrupt(void *private)
|
|
{
|
|
struct mts64 *mts = ((struct snd_card*)private)->private_data;
|
|
u16 ret;
|
|
u8 status, data;
|
|
struct snd_rawmidi_substream *substream;
|
|
|
|
spin_lock(&mts->lock);
|
|
ret = mts64_read(mts->pardev->port);
|
|
data = ret & 0x00ff;
|
|
status = ret >> 8;
|
|
|
|
if (status & MTS64_STAT_PORT) {
|
|
mts->current_midi_input_port = mts64_map_midi_input(data);
|
|
} else {
|
|
if (mts->current_midi_input_port == -1)
|
|
goto __out;
|
|
substream = mts->midi_input_substream[mts->current_midi_input_port];
|
|
if (mts->mode[substream->number] & MTS64_MODE_INPUT_TRIGGERED)
|
|
snd_rawmidi_receive(substream, &data, 1);
|
|
}
|
|
__out:
|
|
spin_unlock(&mts->lock);
|
|
}
|
|
|
|
static void snd_mts64_attach(struct parport *p)
|
|
{
|
|
struct platform_device *device;
|
|
|
|
device = platform_device_alloc(PLATFORM_DRIVER, device_count);
|
|
if (!device)
|
|
return;
|
|
|
|
/* Temporary assignment to forward the parport */
|
|
platform_set_drvdata(device, p);
|
|
|
|
if (platform_device_add(device) < 0) {
|
|
platform_device_put(device);
|
|
return;
|
|
}
|
|
|
|
/* Since we dont get the return value of probe
|
|
* We need to check if device probing succeeded or not */
|
|
if (!platform_get_drvdata(device)) {
|
|
platform_device_unregister(device);
|
|
return;
|
|
}
|
|
|
|
/* register device in global table */
|
|
platform_devices[device_count] = device;
|
|
device_count++;
|
|
}
|
|
|
|
static void snd_mts64_detach(struct parport *p)
|
|
{
|
|
/* nothing to do here */
|
|
}
|
|
|
|
static int snd_mts64_dev_probe(struct pardevice *pardev)
|
|
{
|
|
if (strcmp(pardev->name, DRIVER_NAME))
|
|
return -ENODEV;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct parport_driver mts64_parport_driver = {
|
|
.name = "mts64",
|
|
.probe = snd_mts64_dev_probe,
|
|
.match_port = snd_mts64_attach,
|
|
.detach = snd_mts64_detach,
|
|
.devmodel = true,
|
|
};
|
|
|
|
/*********************************************************************
|
|
* platform stuff
|
|
*********************************************************************/
|
|
static void snd_mts64_card_private_free(struct snd_card *card)
|
|
{
|
|
struct mts64 *mts = card->private_data;
|
|
struct pardevice *pardev = mts->pardev;
|
|
|
|
if (pardev) {
|
|
parport_release(pardev);
|
|
parport_unregister_device(pardev);
|
|
}
|
|
|
|
snd_mts64_free(mts);
|
|
}
|
|
|
|
static int snd_mts64_probe(struct platform_device *pdev)
|
|
{
|
|
struct pardevice *pardev;
|
|
struct parport *p;
|
|
int dev = pdev->id;
|
|
struct snd_card *card = NULL;
|
|
struct mts64 *mts = NULL;
|
|
int err;
|
|
struct pardev_cb mts64_cb = {
|
|
.preempt = NULL,
|
|
.wakeup = NULL,
|
|
.irq_func = snd_mts64_interrupt, /* ISR */
|
|
.flags = PARPORT_DEV_EXCL, /* flags */
|
|
};
|
|
|
|
p = platform_get_drvdata(pdev);
|
|
platform_set_drvdata(pdev, NULL);
|
|
|
|
if (dev >= SNDRV_CARDS)
|
|
return -ENODEV;
|
|
if (!enable[dev])
|
|
return -ENOENT;
|
|
|
|
err = snd_card_new(&pdev->dev, index[dev], id[dev], THIS_MODULE,
|
|
0, &card);
|
|
if (err < 0) {
|
|
snd_printd("Cannot create card\n");
|
|
return err;
|
|
}
|
|
strcpy(card->driver, DRIVER_NAME);
|
|
strcpy(card->shortname, "ESI " CARD_NAME);
|
|
sprintf(card->longname, "%s at 0x%lx, irq %i",
|
|
card->shortname, p->base, p->irq);
|
|
|
|
mts64_cb.private = card; /* private */
|
|
pardev = parport_register_dev_model(p, /* port */
|
|
DRIVER_NAME, /* name */
|
|
&mts64_cb, /* callbacks */
|
|
pdev->id); /* device number */
|
|
if (!pardev) {
|
|
snd_printd("Cannot register pardevice\n");
|
|
err = -EIO;
|
|
goto __err;
|
|
}
|
|
|
|
/* claim parport */
|
|
if (parport_claim(pardev)) {
|
|
snd_printd("Cannot claim parport 0x%lx\n", pardev->port->base);
|
|
err = -EIO;
|
|
goto free_pardev;
|
|
}
|
|
|
|
if ((err = snd_mts64_create(card, pardev, &mts)) < 0) {
|
|
snd_printd("Cannot create main component\n");
|
|
goto release_pardev;
|
|
}
|
|
card->private_data = mts;
|
|
card->private_free = snd_mts64_card_private_free;
|
|
|
|
err = mts64_probe(p);
|
|
if (err) {
|
|
err = -EIO;
|
|
goto __err;
|
|
}
|
|
|
|
if ((err = snd_mts64_rawmidi_create(card)) < 0) {
|
|
snd_printd("Creating Rawmidi component failed\n");
|
|
goto __err;
|
|
}
|
|
|
|
/* init device */
|
|
if ((err = mts64_device_init(p)) < 0)
|
|
goto __err;
|
|
|
|
platform_set_drvdata(pdev, card);
|
|
|
|
/* At this point card will be usable */
|
|
if ((err = snd_card_register(card)) < 0) {
|
|
snd_printd("Cannot register card\n");
|
|
goto __err;
|
|
}
|
|
|
|
snd_printk(KERN_INFO "ESI Miditerminal 4140 on 0x%lx\n", p->base);
|
|
return 0;
|
|
|
|
release_pardev:
|
|
parport_release(pardev);
|
|
free_pardev:
|
|
parport_unregister_device(pardev);
|
|
__err:
|
|
snd_card_free(card);
|
|
return err;
|
|
}
|
|
|
|
static int snd_mts64_remove(struct platform_device *pdev)
|
|
{
|
|
struct snd_card *card = platform_get_drvdata(pdev);
|
|
|
|
if (card)
|
|
snd_card_free(card);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver snd_mts64_driver = {
|
|
.probe = snd_mts64_probe,
|
|
.remove = snd_mts64_remove,
|
|
.driver = {
|
|
.name = PLATFORM_DRIVER,
|
|
}
|
|
};
|
|
|
|
/*********************************************************************
|
|
* module init stuff
|
|
*********************************************************************/
|
|
static void snd_mts64_unregister_all(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < SNDRV_CARDS; ++i) {
|
|
if (platform_devices[i]) {
|
|
platform_device_unregister(platform_devices[i]);
|
|
platform_devices[i] = NULL;
|
|
}
|
|
}
|
|
platform_driver_unregister(&snd_mts64_driver);
|
|
parport_unregister_driver(&mts64_parport_driver);
|
|
}
|
|
|
|
static int __init snd_mts64_module_init(void)
|
|
{
|
|
int err;
|
|
|
|
if ((err = platform_driver_register(&snd_mts64_driver)) < 0)
|
|
return err;
|
|
|
|
if (parport_register_driver(&mts64_parport_driver) != 0) {
|
|
platform_driver_unregister(&snd_mts64_driver);
|
|
return -EIO;
|
|
}
|
|
|
|
if (device_count == 0) {
|
|
snd_mts64_unregister_all();
|
|
return -ENODEV;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __exit snd_mts64_module_exit(void)
|
|
{
|
|
snd_mts64_unregister_all();
|
|
}
|
|
|
|
module_init(snd_mts64_module_init);
|
|
module_exit(snd_mts64_module_exit);
|