[ALSA] Add snd-mts64 driver for ESI Miditerminal 4140
authorMatthias Koenig <mk@phasorlab.de>
Thu, 27 Jul 2006 14:59:23 +0000 (16:59 +0200)
committerJaroslav Kysela <perex@suse.cz>
Sat, 23 Sep 2006 08:39:16 +0000 (10:39 +0200)
Added snd-mts64 driver for Ego Systems (ESI) Miditerminal 4140
by Matthias Koenig <mk@phasorlab.de>.
The driver requires parport (CONFIG_PARPORT).

Signed-off-by: Matthias Koenig <mk@phasorlab.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Documentation/sound/alsa/ALSA-Configuration.txt
sound/drivers/Kconfig
sound/drivers/Makefile
sound/drivers/mts64.c [new file with mode: 0644]

index 885d2ed88fd0d03921e6262b5b3eb6678e9ab75e..7344815b855e0da07a0c45b32c8d220e2840c701 100644 (file)
@@ -1216,6 +1216,14 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
     
     Module supports only 1 card.  This module has no enable option.
 
+  Module snd-mts64
+  ----------------
+
+    Module for Ego Systems (ESI) Miditerminal 4140
+
+    This module supports multiple devices.
+    Requires parport (CONFIG_PARPORT).
+
   Module snd-nm256
   ----------------
 
index 897dc2dfd7ddb8145125e9630d64ded482a53d60..952c7f170101b2644549348c526b58752d2465de 100644 (file)
@@ -73,6 +73,19 @@ config SND_MTPAV
          To compile this driver as a module, choose M here: the module
          will be called snd-mtpav.
 
+config SND_MTS64
+       tristate "ESI Miditerminal 4140 driver"
+       depends on SND && PARPORT
+       select SND_RAWMIDI
+       help
+         The ESI Miditerminal 4140 is a 4 In 4 Out MIDI Interface with 
+          additional SMPTE Timecode capabilities for the parallel port.
+
+         Say 'Y' to include support for this device.
+
+         To compile this driver as a module, chose 'M' here: the module 
+          will be called snd-mts64.
+
 config SND_SERIAL_U16550
        tristate "UART16550 serial MIDI driver"
        depends on SND
index cb98c3d662be5e048f3b5f8183dfc62923e62a5f..c9bad6d67e73a94c0b499c2abc94ae316cd5fc13 100644 (file)
@@ -5,6 +5,7 @@
 
 snd-dummy-objs := dummy.o
 snd-mtpav-objs := mtpav.o
+snd-mts64-objs := mts64.o
 snd-serial-u16550-objs := serial-u16550.o
 snd-virmidi-objs := virmidi.o
 
@@ -13,5 +14,6 @@ obj-$(CONFIG_SND_DUMMY) += snd-dummy.o
 obj-$(CONFIG_SND_VIRMIDI) += snd-virmidi.o
 obj-$(CONFIG_SND_SERIAL_U16550) += snd-serial-u16550.o
 obj-$(CONFIG_SND_MTPAV) += snd-mtpav.o
+obj-$(CONFIG_SND_MTS64) += snd-mts64.o
 
 obj-$(CONFIG_SND) += opl3/ opl4/ mpu401/ vx/
diff --git a/sound/drivers/mts64.c b/sound/drivers/mts64.c
new file mode 100644 (file)
index 0000000..1699873
--- /dev/null
@@ -0,0 +1,1091 @@
+/*     
+ *   ALSA Driver for Ego Systems Inc. (ESI) Miditerminal 4140
+ *   Copyright (c) 2006 by Matthias K├Ânig <mk@phasorlab.de>
+ *
+ *   This program is free software; you can redistribute it and/or modify 
+ *   it under the terms of the GNU General Public License as published by 
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version. 
+ *
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include <sound/driver.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/parport.h>
+#include <linux/spinlock.h>
+#include <linux/delay.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <sound/rawmidi.h>
+#include <sound/control.h>
+
+#define CARD_NAME "Miditerminal 4140"
+#define DRIVER_NAME "MTS64"
+#define PLATFORM_DRIVER "snd_mts64"
+
+static int index[SNDRV_CARDS]  = SNDRV_DEFAULT_IDX;
+static char *id[SNDRV_CARDS]   = SNDRV_DEFAULT_STR;
+static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
+
+static struct platform_device *platform_devices[SNDRV_CARDS]; 
+static int device_count;
+
+module_param_array(index, int, NULL, S_IRUGO);
+MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
+module_param_array(id, charp, NULL, S_IRUGO);
+MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
+module_param_array(enable, bool, NULL, S_IRUGO);
+MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard.");
+
+MODULE_AUTHOR("Matthias Koenig <mk@phasorlab.de>");
+MODULE_DESCRIPTION("ESI Miditerminal 4140");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{ESI,Miditerminal 4140}}");
+
+/*********************************************************************
+ * Chip specific
+ *********************************************************************/
+#define MTS64_NUM_INPUT_PORTS 5
+#define MTS64_NUM_OUTPUT_PORTS 4
+#define MTS64_SMPTE_SUBSTREAM 4
+
+struct mts64 {
+       spinlock_t lock;
+       struct snd_card *card;
+       struct snd_rawmidi *rmidi;
+       struct pardevice *pardev;
+       int pardev_claimed;
+
+       int open_count;
+       int current_midi_output_port;
+       int current_midi_input_port;
+       u8 mode[MTS64_NUM_INPUT_PORTS];
+       struct snd_rawmidi_substream *midi_input_substream[MTS64_NUM_INPUT_PORTS];
+       int smpte_switch;
+       u8 time[4]; /* [0]=hh, [1]=mm, [2]=ss, [3]=ff */
+       u8 fps;
+};
+
+static int snd_mts64_free(struct mts64 *mts)
+{
+       kfree(mts);
+       return 0;
+}
+
+static int __devinit snd_mts64_create(struct snd_card *card, 
+                                     struct pardevice *pardev, 
+                                     struct mts64 **rchip)
+{
+       struct mts64 *mts;
+
+       *rchip = NULL;
+
+       mts = kzalloc(sizeof(struct mts64), GFP_KERNEL);
+       if (mts == NULL) 
+               return -ENOMEM;
+
+       /* Init chip specific data */
+       spin_lock_init(&mts->lock);
+       mts->card = card;
+       mts->pardev = pardev;
+       mts->current_midi_output_port = -1;
+       mts->current_midi_input_port = -1;
+
+       *rchip = mts;
+
+       return 0;
+}
+
+/*********************************************************************
+ * HW register related constants
+ *********************************************************************/
+
+/* Status Bits */
+#define MTS64_STAT_BSY             0x80
+#define MTS64_STAT_BIT_SET         0x20  /* readout process, bit is set */
+#define MTS64_STAT_PORT            0x10  /* read byte is a port number */
+
+/* Control Bits */
+#define MTS64_CTL_READOUT          0x08  /* enable readout */
+#define MTS64_CTL_WRITE_CMD        0x06  
+#define MTS64_CTL_WRITE_DATA       0x02  
+#define MTS64_CTL_STROBE           0x01  
+
+/* Command */
+#define MTS64_CMD_RESET            0xfe
+#define MTS64_CMD_PROBE            0x8f  /* Used in probing procedure */
+#define MTS64_CMD_SMPTE_SET_TIME   0xe8
+#define MTS64_CMD_SMPTE_SET_FPS    0xee
+#define MTS64_CMD_SMPTE_STOP       0xef
+#define MTS64_CMD_SMPTE_FPS_24     0xe3
+#define MTS64_CMD_SMPTE_FPS_25     0xe2
+#define MTS64_CMD_SMPTE_FPS_2997   0xe4 
+#define MTS64_CMD_SMPTE_FPS_30D    0xe1
+#define MTS64_CMD_SMPTE_FPS_30     0xe0
+#define MTS64_CMD_COM_OPEN         0xf8  /* setting the communication mode */
+#define MTS64_CMD_COM_CLOSE1       0xff  /* clearing communication mode */
+#define MTS64_CMD_COM_CLOSE2       0xf5
+
+/*********************************************************************
+ * Hardware specific functions
+ *********************************************************************/
+static void mts64_enable_readout(struct parport *p);
+static void mts64_disable_readout(struct parport *p);
+static int mts64_device_ready(struct parport *p);
+static int mts64_device_init(struct parport *p);
+static int mts64_device_open(struct mts64 *mts);
+static int mts64_device_close(struct mts64 *mts);
+static u8 mts64_map_midi_input(u8 c);
+static int mts64_probe(struct parport *p);
+static u16 mts64_read(struct parport *p);
+static u8 mts64_read_char(struct parport *p);
+static void mts64_smpte_start(struct parport *p,
+                             u8 hours, u8 minutes,
+                             u8 seconds, u8 frames,
+                             u8 idx);
+static void mts64_smpte_stop(struct parport *p);
+static void mts64_write_command(struct parport *p, u8 c);
+static void mts64_write_data(struct parport *p, u8 c);
+static void mts64_write_midi(struct mts64 *mts, u8 c, int midiport);
+
+
+/*  Enables the readout procedure
+ *
+ *  Before we can read a midi byte from the device, we have to set
+ *  bit 3 of control port.
+ */
+static void mts64_enable_readout(struct parport *p)
+{
+       u8 c;
+
+       c = parport_read_control(p);
+       c |= MTS64_CTL_READOUT;
+       parport_write_control(p, c); 
+}
+
+/*  Disables readout 
+ *
+ *  Readout is disabled by clearing bit 3 of control
+ */
+static void mts64_disable_readout(struct parport *p)
+{
+       u8 c;
+
+       c = parport_read_control(p);
+       c &= ~MTS64_CTL_READOUT;
+       parport_write_control(p, c);
+}
+
+/*  waits for device ready
+ *
+ *  Checks if BUSY (Bit 7 of status) is clear
+ *  1 device ready
+ *  0 failure
+ */
+static int mts64_device_ready(struct parport *p)
+{
+       int i;
+       u8 c;
+
+       for (i = 0; i < 0xffff; ++i) {
+               c = parport_read_status(p);
+               c &= MTS64_STAT_BSY;
+               if (c != 0) 
+                       return 1;
+       } 
+
+       return 0;
+}
+
+/*  Init device (LED blinking startup magic)
+ *
+ *  Returns:
+ *  0 init ok
+ *  -EIO failure
+ */
+static int __devinit mts64_device_init(struct parport *p)
+{
+       int i;
+
+       mts64_write_command(p, MTS64_CMD_RESET);
+
+       for (i = 0; i < 64; ++i) {
+               msleep(100);
+
+               if (mts64_probe(p) == 0) {
+                       /* success */
+                       mts64_disable_readout(p);
+                       return 0;
+               }
+       }
+       mts64_disable_readout(p);
+
+       return -EIO;
+}
+
+/* 
+ *  Opens the device (set communication mode)
+ */
+static int mts64_device_open(struct mts64 *mts)
+{
+       int i;
+       struct parport *p = mts->pardev->port;
+
+       for (i = 0; i < 5; ++i)
+               mts64_write_command(p, MTS64_CMD_COM_OPEN);
+
+       return 0;
+}
+
+/*  
+ *  Close device (clear communication mode)
+ */
+static int mts64_device_close(struct mts64 *mts)
+{
+       int i;
+       struct parport *p = mts->pardev->port;
+
+       for (i = 0; i < 5; ++i) {
+               mts64_write_command(p, MTS64_CMD_COM_CLOSE1);
+               mts64_write_command(p, MTS64_CMD_COM_CLOSE2);
+       }
+
+       return 0;
+}
+
+/*  map hardware port to substream number
+ * 
+ *  When reading a byte from the device, the device tells us
+ *  on what port the byte is. This HW port has to be mapped to
+ *  the midiport (substream number).
+ *  substream 0-3 are Midiports 1-4
+ *  substream 4 is SMPTE Timecode
+ *  The mapping is done by the table:
+ *  HW | 0 | 1 | 2 | 3 | 4 
+ *  SW | 0 | 1 | 4 | 2 | 3
+ */
+static u8 mts64_map_midi_input(u8 c)
+{
+       static u8 map[] = { 0, 1, 4, 2, 3 };
+
+       return map[c];
+}
+
+
+/*  Probe parport for device
+ *
+ *  Do we have a Miditerminal 4140 on parport? 
+ *  Returns:
+ *  0       device found
+ *  -ENODEV no device
+ */
+static int __devinit mts64_probe(struct parport *p)
+{
+       u8 c;
+
+       mts64_smpte_stop(p);
+       mts64_write_command(p, MTS64_CMD_PROBE);
+
+       msleep(50);
+       
+       c = mts64_read(p);
+
+       c &= 0x00ff;
+       if (c != MTS64_CMD_PROBE) 
+               return -ENODEV;
+       else 
+               return 0;
+
+}
+
+/*  Read byte incl. status from device
+ *
+ *  Returns:
+ *  data in lower 8 bits and status in upper 8 bits
+ */
+static u16 mts64_read(struct parport *p)
+{
+       u8 data, status;
+
+       mts64_device_ready(p);
+       mts64_enable_readout(p);
+       status = parport_read_status(p);
+       data = mts64_read_char(p);
+       mts64_disable_readout(p);
+
+       return (status << 8) | data;
+}
+
+/*  Read a byte from device
+ *
+ *  Note, that readout mode has to be enabled.
+ *  readout procedure is as follows: 
+ *  - Write number of the Bit to read to DATA
+ *  - Read STATUS
+ *  - Bit 5 of STATUS indicates if Bit is set
+ *
+ *  Returns:
+ *  Byte read from device
+ */
+static u8 mts64_read_char(struct parport *p)
+{
+       u8 c = 0;
+       u8 status;
+       u8 i;
+
+       for (i = 0; i < 8; ++i) {
+               parport_write_data(p, i);
+               c >>= 1;
+               status = parport_read_status(p);
+               if (status & MTS64_STAT_BIT_SET) 
+                       c |= 0x80;
+       }
+       
+       return c;
+}
+
+/*  Starts SMPTE Timecode generation
+ *
+ *  The device creates SMPTE Timecode by hardware.
+ *  0 24 fps
+ *  1 25 fps
+ *  2 29.97 fps
+ *  3 30 fps (Drop-frame)
+ *  4 30 fps
+ */
+static void mts64_smpte_start(struct parport *p,
+                             u8 hours, u8 minutes,
+                             u8 seconds, u8 frames,
+                             u8 idx)
+{
+       static u8 fps[5] = { MTS64_CMD_SMPTE_FPS_24, 
+                            MTS64_CMD_SMPTE_FPS_25,
+                            MTS64_CMD_SMPTE_FPS_2997, 
+                            MTS64_CMD_SMPTE_FPS_30D,
+                            MTS64_CMD_SMPTE_FPS_30    };
+
+       mts64_write_command(p, MTS64_CMD_SMPTE_SET_TIME);
+       mts64_write_command(p, frames);
+       mts64_write_command(p, seconds);
+       mts64_write_command(p, minutes);
+       mts64_write_command(p, hours);
+
+       mts64_write_command(p, MTS64_CMD_SMPTE_SET_FPS);
+       mts64_write_command(p, fps[idx]);
+}
+
+/*  Stops SMPTE Timecode generation
+ */
+static void mts64_smpte_stop(struct parport *p)
+{
+       mts64_write_command(p, MTS64_CMD_SMPTE_STOP);
+}
+
+/*  Write a command byte to device
+ */
+static void mts64_write_command(struct parport *p, u8 c)
+{
+       mts64_device_ready(p);
+
+       parport_write_data(p, c);
+
+       parport_write_control(p, MTS64_CTL_WRITE_CMD);
+       parport_write_control(p, MTS64_CTL_WRITE_CMD | MTS64_CTL_STROBE);
+       parport_write_control(p, MTS64_CTL_WRITE_CMD);
+}
+
+/*  Write a data byte to device 
+ */
+static void mts64_write_data(struct parport *p, u8 c)
+{
+       mts64_device_ready(p);
+
+       parport_write_data(p, c);
+
+       parport_write_control(p, MTS64_CTL_WRITE_DATA);
+       parport_write_control(p, MTS64_CTL_WRITE_DATA | MTS64_CTL_STROBE);
+       parport_write_control(p, MTS64_CTL_WRITE_DATA);
+}
+
+/*  Write a MIDI byte to midiport
+ *
+ *  midiport ranges from 0-3 and maps to Ports 1-4
+ *  assumptions: communication mode is on
+ */
+static void mts64_write_midi(struct mts64 *mts, u8 c,
+                            int midiport)
+{
+       struct parport *p = mts->pardev->port;
+
+       /* check current midiport */
+       if (mts->current_midi_output_port != midiport)
+               mts64_write_command(p, midiport);
+
+       /* write midi byte */
+       mts64_write_data(p, c);
+}
+
+/*********************************************************************
+ * Control elements
+ *********************************************************************/
+
+/* SMPTE Switch */
+static int snd_mts64_ctl_smpte_switch_info(struct snd_kcontrol *kctl,
+                                          struct snd_ctl_elem_info *uinfo)
+{
+       uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+       uinfo->count = 1;
+       uinfo->value.integer.min = 0;
+       uinfo->value.integer.max = 1;
+       return 0;
+}
+
+static int snd_mts64_ctl_smpte_switch_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.integer.value[0] = mts->smpte_switch;
+       spin_unlock_irq(&mts->lock);
+
+       return 0;
+}
+
+/* smpte_switch is not accessed from IRQ handler, so we just need
+   to protect the HW access */
+static int snd_mts64_ctl_smpte_switch_put(struct snd_kcontrol* kctl,
+                                         struct snd_ctl_elem_value *uctl)
+{
+       struct mts64 *mts = snd_kcontrol_chip(kctl);
+       int changed = 0;
+
+       spin_lock_irq(&mts->lock);
+       if (mts->smpte_switch == uctl->value.integer.value[0])
+               goto __out;
+
+       changed = 1;
+       mts->smpte_switch = uctl->value.integer.value[0];
+       if (mts->smpte_switch) {
+               mts64_smpte_start(mts->pardev->port,
+                                 mts->time[0], mts->time[1],
+                                 mts->time[2], mts->time[3],
+                                 mts->fps);
+       } else {
+               mts64_smpte_stop(mts->pardev->port);
+       }
+__out:
+       spin_unlock_irq(&mts->lock);
+       return changed;
+}
+
+static struct snd_kcontrol_new mts64_ctl_smpte_switch __devinitdata = {
+       .iface = SNDRV_CTL_ELEM_IFACE_RAWMIDI,
+       .name  = "SMPTE Playback Switch",
+       .index = 0,
+       .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+       .private_value = 0,
+       .info = snd_mts64_ctl_smpte_switch_info,
+       .get  = snd_mts64_ctl_smpte_switch_get,
+       .put  = snd_mts64_ctl_smpte_switch_put
+};
+
+/* Time */
+static int snd_mts64_ctl_smpte_time_h_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 = 23;
+       return 0;
+}
+
+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;
+       int changed = 0;
+
+       spin_lock_irq(&mts->lock);
+       if (mts->time[idx] != uctl->value.integer.value[0]) {
+               changed = 1;
+               mts->time[idx] = uctl->value.integer.value[0];
+       }
+       spin_unlock_irq(&mts->lock);
+
+       return changed;
+}
+
+static struct snd_kcontrol_new mts64_ctl_smpte_time_hours __devinitdata = {
+       .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 __devinitdata = {
+       .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 __devinitdata = {
+       .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 __devinitdata = {
+       .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 char *texts[5] = { "24",
+                                 "25",
+                                 "29.97",
+                                 "30D",
+                                 "30"    };
+
+       uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+       uinfo->count = 1;
+       uinfo->value.enumerated.items = 5;
+       if (uinfo->value.enumerated.item > 4)
+               uinfo->value.enumerated.item = 4;
+       strcpy(uinfo->value.enumerated.name,
+              texts[uinfo->value.enumerated.item]);
+       
+       return 0;
+}
+
+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;
+
+       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 __devinitdata = {
+       .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 __devinit 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,
+               0  };
+
+       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 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 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 __devinit 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(int irq, void *private, struct pt_regs *r)
+{
+       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 int __devinit snd_mts64_probe_port(struct parport *p)
+{
+       struct pardevice *pardev;
+       int res;
+
+       pardev = parport_register_device(p, DRIVER_NAME,
+                                        NULL, NULL, NULL,
+                                        0, NULL);
+       if (!pardev)
+               return -EIO;
+       
+       if (parport_claim(pardev)) {
+               parport_unregister_device(pardev);
+               return -EIO;
+       }
+
+       res = mts64_probe(p);
+
+       parport_release(pardev);
+       parport_unregister_device(pardev);
+
+       return res;
+}
+
+static void __devinit 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_register(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 struct parport_driver mts64_parport_driver = {
+       .name   = "mts64",
+       .attach = snd_mts64_attach,
+       .detach = snd_mts64_detach
+};
+
+/*********************************************************************
+ * 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) {
+               if (mts->pardev_claimed)
+                       parport_release(pardev);
+               parport_unregister_device(pardev);
+       }
+
+       snd_mts64_free(mts);
+}
+
+static int __devinit 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;
+
+       p = platform_get_drvdata(pdev);
+       platform_set_drvdata(pdev, NULL);
+
+       if (dev >= SNDRV_CARDS)
+               return -ENODEV;
+       if (!enable[dev]) 
+               return -ENOENT;
+       if ((err = snd_mts64_probe_port(p)) < 0)
+               return err;
+
+       card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
+       if (card == NULL) {
+               snd_printd("Cannot create card\n");
+               return -ENOMEM;
+       }
+       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);
+
+       pardev = parport_register_device(p,                   /* port */
+                                        DRIVER_NAME,         /* name */
+                                        NULL,                /* preempt */
+                                        NULL,                /* wakeup */
+                                        snd_mts64_interrupt, /* ISR */
+                                        PARPORT_DEV_EXCL,    /* flags */
+                                        (void *)card);       /* private */
+       if (pardev == NULL) {
+               snd_printd("Cannot register pardevice\n");
+               err = -EIO;
+               goto __err;
+       }
+
+       if ((err = snd_mts64_create(card, pardev, &mts)) < 0) {
+               snd_printd("Cannot create main component\n");
+               parport_unregister_device(pardev);
+               goto __err;
+       }
+       card->private_data = mts;
+       card->private_free = snd_mts64_card_private_free;
+       
+       if ((err = snd_mts64_rawmidi_create(card)) < 0) {
+               snd_printd("Creating Rawmidi component failed\n");
+               goto __err;
+       }
+
+       /* claim parport */
+       if (parport_claim(pardev)) {
+               snd_printd("Cannot claim parport 0x%lx\n", pardev->port->base);
+               err = -EIO;
+               goto __err;
+       }
+       mts->pardev_claimed = 1;
+
+       /* 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("ESI Miditerminal 4140 on 0x%lx\n", p->base);
+       return 0;
+
+__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);