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769 lines
19 KiB
769 lines
19 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* MOTU Midi Timepiece ALSA Main routines |
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* Copyright by Michael T. Mayers (c) Jan 09, 2000 |
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* mail: [email protected] |
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* Thanks to John Galbraith |
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* |
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* This driver is for the 'Mark Of The Unicorn' (MOTU) |
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* MidiTimePiece AV multiport MIDI interface |
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* |
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* IOPORTS |
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* ------- |
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* 8 MIDI Ins and 8 MIDI outs |
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* Video Sync In (BNC), Word Sync Out (BNC), |
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* ADAT Sync Out (DB9) |
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* SMPTE in/out (1/4") |
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* 2 programmable pedal/footswitch inputs and 4 programmable MIDI controller knobs. |
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* Macintosh RS422 serial port |
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* RS422 "network" port for ganging multiple MTP's |
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* PC Parallel Port ( which this driver currently uses ) |
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* |
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* MISC FEATURES |
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* ------------- |
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* Hardware MIDI routing, merging, and filtering |
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* MIDI Synchronization to Video, ADAT, SMPTE and other Clock sources |
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* 128 'scene' memories, recallable from MIDI program change |
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* |
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* ChangeLog |
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* Jun 11 2001 Takashi Iwai <[email protected]> |
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* - Recoded & debugged |
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* - Added timer interrupt for midi outputs |
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* - hwports is between 1 and 8, which specifies the number of hardware ports. |
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* The three global ports, computer, adat and broadcast ports, are created |
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* always after h/w and remote ports. |
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*/ |
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#include <linux/init.h> |
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#include <linux/interrupt.h> |
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#include <linux/module.h> |
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#include <linux/err.h> |
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#include <linux/platform_device.h> |
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#include <linux/ioport.h> |
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#include <linux/io.h> |
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#include <linux/moduleparam.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 <linux/delay.h> |
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/* |
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* globals |
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*/ |
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MODULE_AUTHOR("Michael T. Mayers"); |
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MODULE_DESCRIPTION("MOTU MidiTimePiece AV multiport MIDI"); |
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MODULE_LICENSE("GPL"); |
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// io resources |
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#define MTPAV_IOBASE 0x378 |
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#define MTPAV_IRQ 7 |
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#define MTPAV_MAX_PORTS 8 |
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static int index = SNDRV_DEFAULT_IDX1; |
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static char *id = SNDRV_DEFAULT_STR1; |
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static long port = MTPAV_IOBASE; /* 0x378, 0x278 */ |
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static int irq = MTPAV_IRQ; /* 7, 5 */ |
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static int hwports = MTPAV_MAX_PORTS; /* use hardware ports 1-8 */ |
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module_param(index, int, 0444); |
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MODULE_PARM_DESC(index, "Index value for MotuMTPAV MIDI."); |
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module_param(id, charp, 0444); |
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MODULE_PARM_DESC(id, "ID string for MotuMTPAV MIDI."); |
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module_param_hw(port, long, ioport, 0444); |
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MODULE_PARM_DESC(port, "Parallel port # for MotuMTPAV MIDI."); |
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module_param_hw(irq, int, irq, 0444); |
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MODULE_PARM_DESC(irq, "Parallel IRQ # for MotuMTPAV MIDI."); |
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module_param(hwports, int, 0444); |
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MODULE_PARM_DESC(hwports, "Hardware ports # for MotuMTPAV MIDI."); |
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static struct platform_device *device; |
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/* |
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* defines |
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*/ |
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//#define USE_FAKE_MTP // don't actually read/write to MTP device (for debugging without an actual unit) (does not work yet) |
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// parallel port usage masks |
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#define SIGS_BYTE 0x08 |
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#define SIGS_RFD 0x80 |
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#define SIGS_IRQ 0x40 |
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#define SIGS_IN0 0x10 |
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#define SIGS_IN1 0x20 |
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#define SIGC_WRITE 0x04 |
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#define SIGC_READ 0x08 |
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#define SIGC_INTEN 0x10 |
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#define DREG 0 |
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#define SREG 1 |
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#define CREG 2 |
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// |
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#define MTPAV_MODE_INPUT_OPENED 0x01 |
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#define MTPAV_MODE_OUTPUT_OPENED 0x02 |
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#define MTPAV_MODE_INPUT_TRIGGERED 0x04 |
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#define MTPAV_MODE_OUTPUT_TRIGGERED 0x08 |
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#define NUMPORTS (0x12+1) |
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/* |
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*/ |
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struct mtpav_port { |
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u8 number; |
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u8 hwport; |
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u8 mode; |
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u8 running_status; |
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struct snd_rawmidi_substream *input; |
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struct snd_rawmidi_substream *output; |
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}; |
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struct mtpav { |
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struct snd_card *card; |
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unsigned long port; |
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struct resource *res_port; |
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int irq; /* interrupt (for inputs) */ |
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spinlock_t spinlock; |
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int share_irq; /* number of accesses to input interrupts */ |
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int istimer; /* number of accesses to timer interrupts */ |
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struct timer_list timer; /* timer interrupts for outputs */ |
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struct snd_rawmidi *rmidi; |
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int num_ports; /* number of hw ports (1-8) */ |
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struct mtpav_port ports[NUMPORTS]; /* all ports including computer, adat and bc */ |
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u32 inmidiport; /* selected input midi port */ |
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u32 inmidistate; /* during midi command 0xf5 */ |
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u32 outmidihwport; /* selected output midi hw port */ |
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}; |
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/* |
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* possible hardware ports (selected by 0xf5 port message) |
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* 0x00 all ports |
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* 0x01 .. 0x08 this MTP's ports 1..8 |
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* 0x09 .. 0x10 networked MTP's ports (9..16) |
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* 0x11 networked MTP's computer port |
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* 0x63 to ADAT |
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* |
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* mappig: |
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* subdevice 0 - (X-1) ports |
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* X - (2*X-1) networked ports |
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* X computer |
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* X+1 ADAT |
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* X+2 all ports |
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* |
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* where X = chip->num_ports |
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*/ |
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#define MTPAV_PIDX_COMPUTER 0 |
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#define MTPAV_PIDX_ADAT 1 |
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#define MTPAV_PIDX_BROADCAST 2 |
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static int translate_subdevice_to_hwport(struct mtpav *chip, int subdev) |
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{ |
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if (subdev < 0) |
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return 0x01; /* invalid - use port 0 as default */ |
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else if (subdev < chip->num_ports) |
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return subdev + 1; /* single mtp port */ |
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else if (subdev < chip->num_ports * 2) |
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return subdev - chip->num_ports + 0x09; /* remote port */ |
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else if (subdev == chip->num_ports * 2 + MTPAV_PIDX_COMPUTER) |
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return 0x11; /* computer port */ |
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else if (subdev == chip->num_ports + MTPAV_PIDX_ADAT) |
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return 0x63; /* ADAT */ |
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return 0; /* all ports */ |
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} |
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static int translate_hwport_to_subdevice(struct mtpav *chip, int hwport) |
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{ |
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int p; |
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if (hwport <= 0x00) /* all ports */ |
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return chip->num_ports + MTPAV_PIDX_BROADCAST; |
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else if (hwport <= 0x08) { /* single port */ |
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p = hwport - 1; |
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if (p >= chip->num_ports) |
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p = 0; |
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return p; |
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} else if (hwport <= 0x10) { /* remote port */ |
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p = hwport - 0x09 + chip->num_ports; |
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if (p >= chip->num_ports * 2) |
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p = chip->num_ports; |
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return p; |
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} else if (hwport == 0x11) /* computer port */ |
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return chip->num_ports + MTPAV_PIDX_COMPUTER; |
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else /* ADAT */ |
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return chip->num_ports + MTPAV_PIDX_ADAT; |
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} |
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/* |
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*/ |
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static u8 snd_mtpav_getreg(struct mtpav *chip, u16 reg) |
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{ |
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u8 rval = 0; |
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if (reg == SREG) { |
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rval = inb(chip->port + SREG); |
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rval = (rval & 0xf8); |
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} else if (reg == CREG) { |
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rval = inb(chip->port + CREG); |
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rval = (rval & 0x1c); |
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} |
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return rval; |
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} |
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/* |
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*/ |
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static inline void snd_mtpav_mputreg(struct mtpav *chip, u16 reg, u8 val) |
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{ |
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if (reg == DREG || reg == CREG) |
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outb(val, chip->port + reg); |
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} |
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/* |
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*/ |
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static void snd_mtpav_wait_rfdhi(struct mtpav *chip) |
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{ |
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int counts = 10000; |
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u8 sbyte; |
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sbyte = snd_mtpav_getreg(chip, SREG); |
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while (!(sbyte & SIGS_RFD) && counts--) { |
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sbyte = snd_mtpav_getreg(chip, SREG); |
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udelay(10); |
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} |
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} |
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static void snd_mtpav_send_byte(struct mtpav *chip, u8 byte) |
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{ |
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u8 tcbyt; |
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u8 clrwrite; |
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u8 setwrite; |
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snd_mtpav_wait_rfdhi(chip); |
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///////////////// |
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tcbyt = snd_mtpav_getreg(chip, CREG); |
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clrwrite = tcbyt & (SIGC_WRITE ^ 0xff); |
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setwrite = tcbyt | SIGC_WRITE; |
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snd_mtpav_mputreg(chip, DREG, byte); |
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snd_mtpav_mputreg(chip, CREG, clrwrite); // clear write bit |
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snd_mtpav_mputreg(chip, CREG, setwrite); // set write bit |
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} |
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/* |
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*/ |
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/* call this with spin lock held */ |
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static void snd_mtpav_output_port_write(struct mtpav *mtp_card, |
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struct mtpav_port *portp, |
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struct snd_rawmidi_substream *substream) |
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{ |
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u8 outbyte; |
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// Get the outbyte first, so we can emulate running status if |
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// necessary |
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if (snd_rawmidi_transmit(substream, &outbyte, 1) != 1) |
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return; |
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// send port change command if necessary |
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if (portp->hwport != mtp_card->outmidihwport) { |
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mtp_card->outmidihwport = portp->hwport; |
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snd_mtpav_send_byte(mtp_card, 0xf5); |
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snd_mtpav_send_byte(mtp_card, portp->hwport); |
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/* |
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snd_printk(KERN_DEBUG "new outport: 0x%x\n", |
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(unsigned int) portp->hwport); |
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*/ |
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if (!(outbyte & 0x80) && portp->running_status) |
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snd_mtpav_send_byte(mtp_card, portp->running_status); |
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} |
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// send data |
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do { |
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if (outbyte & 0x80) |
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portp->running_status = outbyte; |
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snd_mtpav_send_byte(mtp_card, outbyte); |
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} while (snd_rawmidi_transmit(substream, &outbyte, 1) == 1); |
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} |
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static void snd_mtpav_output_write(struct snd_rawmidi_substream *substream) |
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{ |
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struct mtpav *mtp_card = substream->rmidi->private_data; |
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struct mtpav_port *portp = &mtp_card->ports[substream->number]; |
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unsigned long flags; |
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spin_lock_irqsave(&mtp_card->spinlock, flags); |
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snd_mtpav_output_port_write(mtp_card, portp, substream); |
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spin_unlock_irqrestore(&mtp_card->spinlock, flags); |
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} |
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/* |
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* mtpav control |
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*/ |
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static void snd_mtpav_portscan(struct mtpav *chip) // put mtp into smart routing mode |
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{ |
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u8 p; |
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for (p = 0; p < 8; p++) { |
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snd_mtpav_send_byte(chip, 0xf5); |
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snd_mtpav_send_byte(chip, p); |
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snd_mtpav_send_byte(chip, 0xfe); |
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} |
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} |
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/* |
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*/ |
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static int snd_mtpav_input_open(struct snd_rawmidi_substream *substream) |
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{ |
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struct mtpav *mtp_card = substream->rmidi->private_data; |
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struct mtpav_port *portp = &mtp_card->ports[substream->number]; |
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unsigned long flags; |
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spin_lock_irqsave(&mtp_card->spinlock, flags); |
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portp->mode |= MTPAV_MODE_INPUT_OPENED; |
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portp->input = substream; |
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if (mtp_card->share_irq++ == 0) |
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snd_mtpav_mputreg(mtp_card, CREG, (SIGC_INTEN | SIGC_WRITE)); // enable pport interrupts |
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spin_unlock_irqrestore(&mtp_card->spinlock, flags); |
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return 0; |
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} |
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/* |
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*/ |
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static int snd_mtpav_input_close(struct snd_rawmidi_substream *substream) |
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{ |
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struct mtpav *mtp_card = substream->rmidi->private_data; |
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struct mtpav_port *portp = &mtp_card->ports[substream->number]; |
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unsigned long flags; |
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spin_lock_irqsave(&mtp_card->spinlock, flags); |
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portp->mode &= ~MTPAV_MODE_INPUT_OPENED; |
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portp->input = NULL; |
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if (--mtp_card->share_irq == 0) |
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snd_mtpav_mputreg(mtp_card, CREG, 0); // disable pport interrupts |
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spin_unlock_irqrestore(&mtp_card->spinlock, flags); |
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return 0; |
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} |
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/* |
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*/ |
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static void snd_mtpav_input_trigger(struct snd_rawmidi_substream *substream, int up) |
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{ |
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struct mtpav *mtp_card = substream->rmidi->private_data; |
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struct mtpav_port *portp = &mtp_card->ports[substream->number]; |
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unsigned long flags; |
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spin_lock_irqsave(&mtp_card->spinlock, flags); |
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if (up) |
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portp->mode |= MTPAV_MODE_INPUT_TRIGGERED; |
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else |
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portp->mode &= ~MTPAV_MODE_INPUT_TRIGGERED; |
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spin_unlock_irqrestore(&mtp_card->spinlock, flags); |
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} |
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/* |
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* timer interrupt for outputs |
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*/ |
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static void snd_mtpav_output_timer(struct timer_list *t) |
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{ |
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unsigned long flags; |
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struct mtpav *chip = from_timer(chip, t, timer); |
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int p; |
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spin_lock_irqsave(&chip->spinlock, flags); |
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/* reprogram timer */ |
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mod_timer(&chip->timer, 1 + jiffies); |
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/* process each port */ |
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for (p = 0; p <= chip->num_ports * 2 + MTPAV_PIDX_BROADCAST; p++) { |
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struct mtpav_port *portp = &chip->ports[p]; |
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if ((portp->mode & MTPAV_MODE_OUTPUT_TRIGGERED) && portp->output) |
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snd_mtpav_output_port_write(chip, portp, portp->output); |
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} |
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spin_unlock_irqrestore(&chip->spinlock, flags); |
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} |
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/* spinlock held! */ |
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static void snd_mtpav_add_output_timer(struct mtpav *chip) |
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{ |
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mod_timer(&chip->timer, 1 + jiffies); |
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} |
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/* spinlock held! */ |
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static void snd_mtpav_remove_output_timer(struct mtpav *chip) |
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{ |
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del_timer(&chip->timer); |
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} |
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/* |
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*/ |
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static int snd_mtpav_output_open(struct snd_rawmidi_substream *substream) |
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{ |
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struct mtpav *mtp_card = substream->rmidi->private_data; |
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struct mtpav_port *portp = &mtp_card->ports[substream->number]; |
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unsigned long flags; |
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spin_lock_irqsave(&mtp_card->spinlock, flags); |
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portp->mode |= MTPAV_MODE_OUTPUT_OPENED; |
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portp->output = substream; |
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spin_unlock_irqrestore(&mtp_card->spinlock, flags); |
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return 0; |
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}; |
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/* |
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*/ |
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static int snd_mtpav_output_close(struct snd_rawmidi_substream *substream) |
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{ |
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struct mtpav *mtp_card = substream->rmidi->private_data; |
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struct mtpav_port *portp = &mtp_card->ports[substream->number]; |
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unsigned long flags; |
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spin_lock_irqsave(&mtp_card->spinlock, flags); |
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portp->mode &= ~MTPAV_MODE_OUTPUT_OPENED; |
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portp->output = NULL; |
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spin_unlock_irqrestore(&mtp_card->spinlock, flags); |
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return 0; |
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}; |
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/* |
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*/ |
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static void snd_mtpav_output_trigger(struct snd_rawmidi_substream *substream, int up) |
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{ |
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struct mtpav *mtp_card = substream->rmidi->private_data; |
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struct mtpav_port *portp = &mtp_card->ports[substream->number]; |
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unsigned long flags; |
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spin_lock_irqsave(&mtp_card->spinlock, flags); |
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if (up) { |
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if (! (portp->mode & MTPAV_MODE_OUTPUT_TRIGGERED)) { |
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if (mtp_card->istimer++ == 0) |
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snd_mtpav_add_output_timer(mtp_card); |
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portp->mode |= MTPAV_MODE_OUTPUT_TRIGGERED; |
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} |
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} else { |
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portp->mode &= ~MTPAV_MODE_OUTPUT_TRIGGERED; |
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if (--mtp_card->istimer == 0) |
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snd_mtpav_remove_output_timer(mtp_card); |
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} |
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spin_unlock_irqrestore(&mtp_card->spinlock, flags); |
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if (up) |
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snd_mtpav_output_write(substream); |
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} |
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/* |
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* midi interrupt for inputs |
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*/ |
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static void snd_mtpav_inmidi_process(struct mtpav *mcrd, u8 inbyte) |
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{ |
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struct mtpav_port *portp; |
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if ((int)mcrd->inmidiport > mcrd->num_ports * 2 + MTPAV_PIDX_BROADCAST) |
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return; |
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portp = &mcrd->ports[mcrd->inmidiport]; |
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if (portp->mode & MTPAV_MODE_INPUT_TRIGGERED) |
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snd_rawmidi_receive(portp->input, &inbyte, 1); |
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} |
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static void snd_mtpav_inmidi_h(struct mtpav *mcrd, u8 inbyte) |
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{ |
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if (inbyte >= 0xf8) { |
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/* real-time midi code */ |
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snd_mtpav_inmidi_process(mcrd, inbyte); |
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return; |
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} |
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if (mcrd->inmidistate == 0) { // awaiting command |
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if (inbyte == 0xf5) // MTP port # |
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mcrd->inmidistate = 1; |
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else |
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snd_mtpav_inmidi_process(mcrd, inbyte); |
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} else if (mcrd->inmidistate) { |
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mcrd->inmidiport = translate_hwport_to_subdevice(mcrd, inbyte); |
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mcrd->inmidistate = 0; |
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} |
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} |
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static void snd_mtpav_read_bytes(struct mtpav *mcrd) |
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{ |
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u8 clrread, setread; |
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u8 mtp_read_byte; |
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u8 sr, cbyt; |
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int i; |
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u8 sbyt = snd_mtpav_getreg(mcrd, SREG); |
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/* printk(KERN_DEBUG "snd_mtpav_read_bytes() sbyt: 0x%x\n", sbyt); */ |
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if (!(sbyt & SIGS_BYTE)) |
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return; |
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cbyt = snd_mtpav_getreg(mcrd, CREG); |
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clrread = cbyt & (SIGC_READ ^ 0xff); |
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setread = cbyt | SIGC_READ; |
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do { |
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mtp_read_byte = 0; |
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for (i = 0; i < 4; i++) { |
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snd_mtpav_mputreg(mcrd, CREG, setread); |
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sr = snd_mtpav_getreg(mcrd, SREG); |
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snd_mtpav_mputreg(mcrd, CREG, clrread); |
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sr &= SIGS_IN0 | SIGS_IN1; |
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sr >>= 4; |
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mtp_read_byte |= sr << (i * 2); |
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} |
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snd_mtpav_inmidi_h(mcrd, mtp_read_byte); |
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sbyt = snd_mtpav_getreg(mcrd, SREG); |
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} while (sbyt & SIGS_BYTE); |
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} |
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static irqreturn_t snd_mtpav_irqh(int irq, void *dev_id) |
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{ |
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struct mtpav *mcard = dev_id; |
|
|
|
spin_lock(&mcard->spinlock); |
|
snd_mtpav_read_bytes(mcard); |
|
spin_unlock(&mcard->spinlock); |
|
return IRQ_HANDLED; |
|
} |
|
|
|
/* |
|
* get ISA resources |
|
*/ |
|
static int snd_mtpav_get_ISA(struct mtpav *mcard) |
|
{ |
|
if ((mcard->res_port = request_region(port, 3, "MotuMTPAV MIDI")) == NULL) { |
|
snd_printk(KERN_ERR "MTVAP port 0x%lx is busy\n", port); |
|
return -EBUSY; |
|
} |
|
mcard->port = port; |
|
if (request_irq(irq, snd_mtpav_irqh, 0, "MOTU MTPAV", mcard)) { |
|
snd_printk(KERN_ERR "MTVAP IRQ %d busy\n", irq); |
|
return -EBUSY; |
|
} |
|
mcard->irq = irq; |
|
return 0; |
|
} |
|
|
|
|
|
/* |
|
*/ |
|
|
|
static const struct snd_rawmidi_ops snd_mtpav_output = { |
|
.open = snd_mtpav_output_open, |
|
.close = snd_mtpav_output_close, |
|
.trigger = snd_mtpav_output_trigger, |
|
}; |
|
|
|
static const struct snd_rawmidi_ops snd_mtpav_input = { |
|
.open = snd_mtpav_input_open, |
|
.close = snd_mtpav_input_close, |
|
.trigger = snd_mtpav_input_trigger, |
|
}; |
|
|
|
|
|
/* |
|
* get RAWMIDI resources |
|
*/ |
|
|
|
static void snd_mtpav_set_name(struct mtpav *chip, |
|
struct snd_rawmidi_substream *substream) |
|
{ |
|
if (substream->number >= 0 && substream->number < chip->num_ports) |
|
sprintf(substream->name, "MTP direct %d", (substream->number % chip->num_ports) + 1); |
|
else if (substream->number >= 8 && substream->number < chip->num_ports * 2) |
|
sprintf(substream->name, "MTP remote %d", (substream->number % chip->num_ports) + 1); |
|
else if (substream->number == chip->num_ports * 2) |
|
strcpy(substream->name, "MTP computer"); |
|
else if (substream->number == chip->num_ports * 2 + 1) |
|
strcpy(substream->name, "MTP ADAT"); |
|
else |
|
strcpy(substream->name, "MTP broadcast"); |
|
} |
|
|
|
static int snd_mtpav_get_RAWMIDI(struct mtpav *mcard) |
|
{ |
|
int rval; |
|
struct snd_rawmidi *rawmidi; |
|
struct snd_rawmidi_substream *substream; |
|
struct list_head *list; |
|
|
|
if (hwports < 1) |
|
hwports = 1; |
|
else if (hwports > 8) |
|
hwports = 8; |
|
mcard->num_ports = hwports; |
|
|
|
if ((rval = snd_rawmidi_new(mcard->card, "MotuMIDI", 0, |
|
mcard->num_ports * 2 + MTPAV_PIDX_BROADCAST + 1, |
|
mcard->num_ports * 2 + MTPAV_PIDX_BROADCAST + 1, |
|
&mcard->rmidi)) < 0) |
|
return rval; |
|
rawmidi = mcard->rmidi; |
|
rawmidi->private_data = mcard; |
|
|
|
list_for_each(list, &rawmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams) { |
|
substream = list_entry(list, struct snd_rawmidi_substream, list); |
|
snd_mtpav_set_name(mcard, substream); |
|
substream->ops = &snd_mtpav_input; |
|
} |
|
list_for_each(list, &rawmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams) { |
|
substream = list_entry(list, struct snd_rawmidi_substream, list); |
|
snd_mtpav_set_name(mcard, substream); |
|
substream->ops = &snd_mtpav_output; |
|
mcard->ports[substream->number].hwport = translate_subdevice_to_hwport(mcard, substream->number); |
|
} |
|
rawmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | |
|
SNDRV_RAWMIDI_INFO_DUPLEX; |
|
sprintf(rawmidi->name, "MTP AV MIDI"); |
|
return 0; |
|
} |
|
|
|
/* |
|
*/ |
|
|
|
static void snd_mtpav_free(struct snd_card *card) |
|
{ |
|
struct mtpav *crd = card->private_data; |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&crd->spinlock, flags); |
|
if (crd->istimer > 0) |
|
snd_mtpav_remove_output_timer(crd); |
|
spin_unlock_irqrestore(&crd->spinlock, flags); |
|
if (crd->irq >= 0) |
|
free_irq(crd->irq, (void *)crd); |
|
release_and_free_resource(crd->res_port); |
|
} |
|
|
|
/* |
|
*/ |
|
static int snd_mtpav_probe(struct platform_device *dev) |
|
{ |
|
struct snd_card *card; |
|
int err; |
|
struct mtpav *mtp_card; |
|
|
|
err = snd_card_new(&dev->dev, index, id, THIS_MODULE, |
|
sizeof(*mtp_card), &card); |
|
if (err < 0) |
|
return err; |
|
|
|
mtp_card = card->private_data; |
|
spin_lock_init(&mtp_card->spinlock); |
|
mtp_card->card = card; |
|
mtp_card->irq = -1; |
|
mtp_card->share_irq = 0; |
|
mtp_card->inmidistate = 0; |
|
mtp_card->outmidihwport = 0xffffffff; |
|
timer_setup(&mtp_card->timer, snd_mtpav_output_timer, 0); |
|
|
|
card->private_free = snd_mtpav_free; |
|
|
|
err = snd_mtpav_get_RAWMIDI(mtp_card); |
|
if (err < 0) |
|
goto __error; |
|
|
|
mtp_card->inmidiport = mtp_card->num_ports + MTPAV_PIDX_BROADCAST; |
|
|
|
err = snd_mtpav_get_ISA(mtp_card); |
|
if (err < 0) |
|
goto __error; |
|
|
|
strcpy(card->driver, "MTPAV"); |
|
strcpy(card->shortname, "MTPAV on parallel port"); |
|
snprintf(card->longname, sizeof(card->longname), |
|
"MTPAV on parallel port at 0x%lx", port); |
|
|
|
snd_mtpav_portscan(mtp_card); |
|
|
|
err = snd_card_register(mtp_card->card); |
|
if (err < 0) |
|
goto __error; |
|
|
|
platform_set_drvdata(dev, card); |
|
printk(KERN_INFO "Motu MidiTimePiece on parallel port irq: %d ioport: 0x%lx\n", irq, port); |
|
return 0; |
|
|
|
__error: |
|
snd_card_free(card); |
|
return err; |
|
} |
|
|
|
static int snd_mtpav_remove(struct platform_device *devptr) |
|
{ |
|
snd_card_free(platform_get_drvdata(devptr)); |
|
return 0; |
|
} |
|
|
|
#define SND_MTPAV_DRIVER "snd_mtpav" |
|
|
|
static struct platform_driver snd_mtpav_driver = { |
|
.probe = snd_mtpav_probe, |
|
.remove = snd_mtpav_remove, |
|
.driver = { |
|
.name = SND_MTPAV_DRIVER, |
|
}, |
|
}; |
|
|
|
static int __init alsa_card_mtpav_init(void) |
|
{ |
|
int err; |
|
|
|
if ((err = platform_driver_register(&snd_mtpav_driver)) < 0) |
|
return err; |
|
|
|
device = platform_device_register_simple(SND_MTPAV_DRIVER, -1, NULL, 0); |
|
if (!IS_ERR(device)) { |
|
if (platform_get_drvdata(device)) |
|
return 0; |
|
platform_device_unregister(device); |
|
err = -ENODEV; |
|
} else |
|
err = PTR_ERR(device); |
|
platform_driver_unregister(&snd_mtpav_driver); |
|
return err; |
|
} |
|
|
|
static void __exit alsa_card_mtpav_exit(void) |
|
{ |
|
platform_device_unregister(device); |
|
platform_driver_unregister(&snd_mtpav_driver); |
|
} |
|
|
|
module_init(alsa_card_mtpav_init) |
|
module_exit(alsa_card_mtpav_exit)
|
|
|