diff options
Diffstat (limited to 'sound/oss/emu10k1/cardmi.c')
| -rw-r--r-- | sound/oss/emu10k1/cardmi.c | 832 |
1 files changed, 832 insertions, 0 deletions
diff --git a/sound/oss/emu10k1/cardmi.c b/sound/oss/emu10k1/cardmi.c new file mode 100644 index 000000000000..0545814cc67d --- /dev/null +++ b/sound/oss/emu10k1/cardmi.c @@ -0,0 +1,832 @@ +/* + ********************************************************************** + * sblive_mi.c - MIDI UART input HAL for emu10k1 driver + * Copyright 1999, 2000 Creative Labs, Inc. + * + ********************************************************************** + * + * Date Author Summary of changes + * ---- ------ ------------------ + * October 20, 1999 Bertrand Lee base code release + * November 2, 1999 Alan Cox clean up + * + ********************************************************************** + * + * 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., 675 Mass Ave, Cambridge, MA 02139, + * USA. + * + ********************************************************************** + */ + +#include <linux/slab.h> +#include <linux/jiffies.h> + +#include "hwaccess.h" +#include "8010.h" +#include "cardmi.h" +#include "irqmgr.h" + + +static int emu10k1_mpuin_callback(struct emu10k1_mpuin *card_mpuin, u32 msg, unsigned long data, u32 bytesvalid); + +static int sblive_miStateInit(struct emu10k1_mpuin *); +static int sblive_miStateEntry(struct emu10k1_mpuin *, u8); +static int sblive_miStateParse(struct emu10k1_mpuin *, u8); +static int sblive_miState3Byte(struct emu10k1_mpuin *, u8); +static int sblive_miState3ByteKey(struct emu10k1_mpuin *, u8); +static int sblive_miState3ByteVel(struct emu10k1_mpuin *, u8); +static int sblive_miState2Byte(struct emu10k1_mpuin *, u8); +static int sblive_miState2ByteKey(struct emu10k1_mpuin *, u8); +static int sblive_miStateSysCommon2(struct emu10k1_mpuin *, u8); +static int sblive_miStateSysCommon2Key(struct emu10k1_mpuin *, u8); +static int sblive_miStateSysCommon3(struct emu10k1_mpuin *, u8); +static int sblive_miStateSysCommon3Key(struct emu10k1_mpuin *, u8); +static int sblive_miStateSysCommon3Vel(struct emu10k1_mpuin *, u8); +static int sblive_miStateSysExNorm(struct emu10k1_mpuin *, u8); +static int sblive_miStateSysReal(struct emu10k1_mpuin *, u8); + + +static struct { + int (*Fn) (struct emu10k1_mpuin *, u8); +} midistatefn[] = { + + { + sblive_miStateParse}, { + sblive_miState3Byte}, /* 0x8n, 0x9n, 0xAn, 0xBn, 0xEn */ + { + sblive_miState3ByteKey}, /* Byte 1 */ + { + sblive_miState3ByteVel}, /* Byte 2 */ + { + sblive_miState2Byte}, /* 0xCn, 0xDn */ + { + sblive_miState2ByteKey}, /* Byte 1 */ + { + sblive_miStateSysCommon2}, /* 0xF1 , 0xF3 */ + { + sblive_miStateSysCommon2Key}, /* 0xF1 , 0xF3, Byte 1 */ + { + sblive_miStateSysCommon3}, /* 0xF2 */ + { + sblive_miStateSysCommon3Key}, /* 0xF2 , Byte 1 */ + { + sblive_miStateSysCommon3Vel}, /* 0xF2 , Byte 2 */ + { + sblive_miStateSysExNorm}, /* 0xF0, 0xF7, Normal mode */ + { + sblive_miStateSysReal} /* 0xF4 - 0xF6 ,0xF8 - 0xFF */ +}; + + +/* Installs the IRQ handler for the MPU in port */ + +/* and initialize parameters */ + +int emu10k1_mpuin_open(struct emu10k1_card *card, struct midi_openinfo *openinfo) +{ + struct emu10k1_mpuin *card_mpuin = card->mpuin; + + DPF(2, "emu10k1_mpuin_open\n"); + + if (!(card_mpuin->status & FLAGS_AVAILABLE)) + return -1; + + /* Copy open info and mark channel as in use */ + card_mpuin->openinfo = *openinfo; + card_mpuin->status &= ~FLAGS_AVAILABLE; /* clear */ + card_mpuin->status |= FLAGS_READY; /* set */ + card_mpuin->status &= ~FLAGS_MIDM_STARTED; /* clear */ + card_mpuin->firstmidiq = NULL; + card_mpuin->lastmidiq = NULL; + card_mpuin->qhead = 0; + card_mpuin->qtail = 0; + + sblive_miStateInit(card_mpuin); + + emu10k1_mpu_reset(card); + emu10k1_mpu_acquire(card); + + return 0; +} + +int emu10k1_mpuin_close(struct emu10k1_card *card) +{ + struct emu10k1_mpuin *card_mpuin = card->mpuin; + + DPF(2, "emu10k1_mpuin_close()\n"); + + /* Check if there are pending input SysEx buffers */ + if (card_mpuin->firstmidiq != NULL) { + ERROR(); + return -1; + } + + /* Disable RX interrupt */ + emu10k1_irq_disable(card, card->is_audigy ? A_INTE_MIDIRXENABLE : INTE_MIDIRXENABLE); + + emu10k1_mpu_release(card); + + card_mpuin->status |= FLAGS_AVAILABLE; /* set */ + card_mpuin->status &= ~FLAGS_MIDM_STARTED; /* clear */ + + return 0; +} + +/* Adds MIDI buffer to local queue list */ + +int emu10k1_mpuin_add_buffer(struct emu10k1_mpuin *card_mpuin, struct midi_hdr *midihdr) +{ + struct midi_queue *midiq; + unsigned long flags; + + DPF(2, "emu10k1_mpuin_add_buffer()\n"); + + /* Update MIDI buffer flags */ + midihdr->flags |= MIDIBUF_INQUEUE; /* set */ + midihdr->flags &= ~MIDIBUF_DONE; /* clear */ + + if ((midiq = (struct midi_queue *) kmalloc(sizeof(struct midi_queue), GFP_ATOMIC)) == NULL) { + /* Message lost */ + return -1; + } + + midiq->next = NULL; + midiq->qtype = 1; + midiq->length = midihdr->bufferlength; + midiq->sizeLeft = midihdr->bufferlength; + midiq->midibyte = midihdr->data; + midiq->refdata = (unsigned long) midihdr; + + spin_lock_irqsave(&card_mpuin->lock, flags); + + if (card_mpuin->firstmidiq == NULL) { + card_mpuin->firstmidiq = midiq; + card_mpuin->lastmidiq = midiq; + } else { + (card_mpuin->lastmidiq)->next = midiq; + card_mpuin->lastmidiq = midiq; + } + + spin_unlock_irqrestore(&card_mpuin->lock, flags); + + return 0; +} + +/* First set the Time Stamp if MIDI IN has not started. */ + +/* Then enable RX Irq. */ + +int emu10k1_mpuin_start(struct emu10k1_card *card) +{ + struct emu10k1_mpuin *card_mpuin = card->mpuin; + u8 dummy; + + DPF(2, "emu10k1_mpuin_start()\n"); + + /* Set timestamp if not set */ + if (card_mpuin->status & FLAGS_MIDM_STARTED) { + DPF(2, "Time Stamp not changed\n"); + } else { + while (!emu10k1_mpu_read_data(card, &dummy)); + + card_mpuin->status |= FLAGS_MIDM_STARTED; /* set */ + + /* Set new time stamp */ + card_mpuin->timestart = (jiffies * 1000) / HZ; + DPD(2, "New Time Stamp = %d\n", card_mpuin->timestart); + + card_mpuin->qhead = 0; + card_mpuin->qtail = 0; + + emu10k1_irq_enable(card, card->is_audigy ? A_INTE_MIDIRXENABLE : INTE_MIDIRXENABLE); + } + + return 0; +} + +/* Disable the RX Irq. If a partial recorded buffer */ + +/* exist, send it up to IMIDI level. */ + +int emu10k1_mpuin_stop(struct emu10k1_card *card) +{ + struct emu10k1_mpuin *card_mpuin = card->mpuin; + struct midi_queue *midiq; + unsigned long flags; + + DPF(2, "emu10k1_mpuin_stop()\n"); + + emu10k1_irq_disable(card, card->is_audigy ? A_INTE_MIDIRXENABLE : INTE_MIDIRXENABLE); + + card_mpuin->status &= ~FLAGS_MIDM_STARTED; /* clear */ + + if (card_mpuin->firstmidiq) { + spin_lock_irqsave(&card_mpuin->lock, flags); + + midiq = card_mpuin->firstmidiq; + if (midiq != NULL) { + if (midiq->sizeLeft == midiq->length) + midiq = NULL; + else { + card_mpuin->firstmidiq = midiq->next; + if (card_mpuin->firstmidiq == NULL) + card_mpuin->lastmidiq = NULL; + } + } + + spin_unlock_irqrestore(&card_mpuin->lock, flags); + + if (midiq) { + emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INLONGERROR, (unsigned long) midiq, 0); + kfree(midiq); + } + } + + return 0; +} + +/* Disable the RX Irq. If any buffer */ + +/* exist, send it up to IMIDI level. */ +int emu10k1_mpuin_reset(struct emu10k1_card *card) +{ + struct emu10k1_mpuin *card_mpuin = card->mpuin; + struct midi_queue *midiq; + + DPF(2, "emu10k1_mpuin_reset()\n"); + + emu10k1_irq_disable(card, card->is_audigy ? A_INTE_MIDIRXENABLE : INTE_MIDIRXENABLE); + + while (card_mpuin->firstmidiq) { + midiq = card_mpuin->firstmidiq; + card_mpuin->firstmidiq = midiq->next; + + if (midiq->sizeLeft == midiq->length) + emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INLONGDATA, (unsigned long) midiq, 0); + else + emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INLONGERROR, (unsigned long) midiq, 0); + + kfree(midiq); + } + + card_mpuin->lastmidiq = NULL; + card_mpuin->status &= ~FLAGS_MIDM_STARTED; + + return 0; +} + +/* Passes the message with the data back to the client */ + +/* via IRQ & DPC callbacks to Ring 3 */ +static int emu10k1_mpuin_callback(struct emu10k1_mpuin *card_mpuin, u32 msg, unsigned long data, u32 bytesvalid) +{ + unsigned long timein; + struct midi_queue *midiq; + unsigned long callback_msg[3]; + struct midi_hdr *midihdr; + + /* Called during ISR. The data & code touched are: + * 1. card_mpuin + * 2. The function to be called + */ + + timein = card_mpuin->timein; + if (card_mpuin->timestart <= timein) + callback_msg[0] = timein - card_mpuin->timestart; + else + callback_msg[0] = (~0x0L - card_mpuin->timestart) + timein; + + if (msg == ICARDMIDI_INDATA || msg == ICARDMIDI_INDATAERROR) { + callback_msg[1] = data; + callback_msg[2] = bytesvalid; + DPD(2, "emu10k1_mpuin_callback: midimsg = %#lx\n", data); + } else { + midiq = (struct midi_queue *) data; + midihdr = (struct midi_hdr *) midiq->refdata; + + callback_msg[1] = midiq->length - midiq->sizeLeft; + callback_msg[2] = midiq->refdata; + midihdr->flags &= ~MIDIBUF_INQUEUE; + midihdr->flags |= MIDIBUF_DONE; + + midihdr->bytesrecorded = midiq->length - midiq->sizeLeft; + } + + /* Notify client that Sysex buffer has been sent */ + emu10k1_midi_callback(msg, card_mpuin->openinfo.refdata, callback_msg); + + return 0; +} + +void emu10k1_mpuin_bh(unsigned long refdata) +{ + u8 data; + unsigned idx; + struct emu10k1_mpuin *card_mpuin = (struct emu10k1_mpuin *) refdata; + unsigned long flags; + + while (card_mpuin->qhead != card_mpuin->qtail) { + spin_lock_irqsave(&card_mpuin->lock, flags); + idx = card_mpuin->qhead; + data = card_mpuin->midiq[idx].data; + card_mpuin->timein = card_mpuin->midiq[idx].timein; + idx = (idx + 1) % MIDIIN_MAX_BUFFER_SIZE; + card_mpuin->qhead = idx; + spin_unlock_irqrestore(&card_mpuin->lock, flags); + + sblive_miStateEntry(card_mpuin, data); + } + + return; +} + +/* IRQ callback handler routine for the MPU in port */ + +int emu10k1_mpuin_irqhandler(struct emu10k1_card *card) +{ + unsigned idx; + unsigned count; + u8 MPUIvalue; + struct emu10k1_mpuin *card_mpuin = card->mpuin; + + /* IRQ service routine. The data and code touched are: + * 1. card_mpuin + */ + + count = 0; + idx = card_mpuin->qtail; + + while (1) { + if (emu10k1_mpu_read_data(card, &MPUIvalue) < 0) { + break; + } else { + ++count; + card_mpuin->midiq[idx].data = MPUIvalue; + card_mpuin->midiq[idx].timein = (jiffies * 1000) / HZ; + idx = (idx + 1) % MIDIIN_MAX_BUFFER_SIZE; + } + } + + if (count) { + card_mpuin->qtail = idx; + + tasklet_hi_schedule(&card_mpuin->tasklet); + } + + return 0; +} + +/*****************************************************************************/ + +/* Supporting functions for Midi-In Interpretation State Machine */ + +/*****************************************************************************/ + +/* FIXME: This should be a macro */ +static int sblive_miStateInit(struct emu10k1_mpuin *card_mpuin) +{ + card_mpuin->status = 0; /* For MIDI running status */ + card_mpuin->fstatus = 0; /* For 0xFn status only */ + card_mpuin->curstate = STIN_PARSE; + card_mpuin->laststate = STIN_PARSE; + card_mpuin->data = 0; + card_mpuin->timestart = 0; + card_mpuin->timein = 0; + + return 0; +} + +/* FIXME: This should be a macro */ +static int sblive_miStateEntry(struct emu10k1_mpuin *card_mpuin, u8 data) +{ + return midistatefn[card_mpuin->curstate].Fn(card_mpuin, data); +} + +static int sblive_miStateParse(struct emu10k1_mpuin *card_mpuin, u8 data) +{ + switch (data & 0xf0) { + case 0x80: + case 0x90: + case 0xA0: + case 0xB0: + case 0xE0: + card_mpuin->curstate = STIN_3BYTE; + break; + + case 0xC0: + case 0xD0: + card_mpuin->curstate = STIN_2BYTE; + break; + + case 0xF0: + /* System messages do not affect the previous running status! */ + switch (data & 0x0f) { + case 0x0: + card_mpuin->laststate = card_mpuin->curstate; + card_mpuin->curstate = STIN_SYS_EX_NORM; + + if (card_mpuin->firstmidiq) { + struct midi_queue *midiq; + + midiq = card_mpuin->firstmidiq; + *midiq->midibyte = data; + --midiq->sizeLeft; + ++midiq->midibyte; + } + + return CTSTATUS_NEXT_BYTE; + + case 0x7: + emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATAERROR, 0xf7, 0); + return -1; + + case 0x2: + card_mpuin->laststate = card_mpuin->curstate; + card_mpuin->curstate = STIN_SYS_COMMON_3; + break; + + case 0x1: + case 0x3: + card_mpuin->laststate = card_mpuin->curstate; + card_mpuin->curstate = STIN_SYS_COMMON_2; + break; + + default: + /* includes 0xF4 - 0xF6, 0xF8 - 0xFF */ + return midistatefn[STIN_SYS_REAL].Fn(card_mpuin, data); + } + + break; + + default: + DPF(2, "BUG: default case hit\n"); + return -1; + } + + return midistatefn[card_mpuin->curstate].Fn(card_mpuin, data); +} + +static int sblive_miState3Byte(struct emu10k1_mpuin *card_mpuin, u8 data) +{ + u8 temp = data & 0xf0; + + if (temp < 0x80) { + return midistatefn[STIN_3BYTE_KEY].Fn(card_mpuin, data); + } else if (temp <= 0xe0 && temp != 0xc0 && temp != 0xd0) { + card_mpuin->status = data; + card_mpuin->curstate = STIN_3BYTE_KEY; + + return CTSTATUS_NEXT_BYTE; + } + + return midistatefn[STIN_PARSE].Fn(card_mpuin, data); +} + +static int sblive_miState3ByteKey(struct emu10k1_mpuin *card_mpuin, u8 data) +/* byte 1 */ +{ + unsigned long tmp; + + if (data > 0x7f) { + /* Real-time messages check */ + if (data > 0xf7) + return midistatefn[STIN_SYS_REAL].Fn(card_mpuin, data); + + /* Invalid data! */ + DPF(2, "Invalid data!\n"); + + card_mpuin->curstate = STIN_PARSE; + tmp = ((unsigned long) data) << 8; + tmp |= (unsigned long) card_mpuin->status; + + emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATAERROR, tmp, 0); + + return -1; + } + + card_mpuin->data = data; + card_mpuin->curstate = STIN_3BYTE_VEL; + + return CTSTATUS_NEXT_BYTE; +} + +static int sblive_miState3ByteVel(struct emu10k1_mpuin *card_mpuin, u8 data) +/* byte 2 */ +{ + unsigned long tmp; + + if (data > 0x7f) { + /* Real-time messages check */ + if (data > 0xf7) + return midistatefn[STIN_SYS_REAL].Fn(card_mpuin, data); + + /* Invalid data! */ + DPF(2, "Invalid data!\n"); + + card_mpuin->curstate = STIN_PARSE; + tmp = ((unsigned long) data) << 8; + tmp |= card_mpuin->data; + tmp = tmp << 8; + tmp |= (unsigned long) card_mpuin->status; + + emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATAERROR, tmp, 0); + + return -1; + } + + card_mpuin->curstate = STIN_3BYTE; + tmp = (unsigned long) data; + tmp = tmp << 8; + tmp |= (unsigned long) card_mpuin->data; + tmp = tmp << 8; + tmp |= (unsigned long) card_mpuin->status; + + emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATA, tmp, 3); + + return 0; +} + +static int sblive_miState2Byte(struct emu10k1_mpuin *card_mpuin, u8 data) +{ + u8 temp = data & 0xf0; + + if ((temp == 0xc0) || (temp == 0xd0)) { + card_mpuin->status = data; + card_mpuin->curstate = STIN_2BYTE_KEY; + + return CTSTATUS_NEXT_BYTE; + } + + if (temp < 0x80) + return midistatefn[STIN_2BYTE_KEY].Fn(card_mpuin, data); + + return midistatefn[STIN_PARSE].Fn(card_mpuin, data); +} + +static int sblive_miState2ByteKey(struct emu10k1_mpuin *card_mpuin, u8 data) +/* byte 1 */ +{ + unsigned long tmp; + + if (data > 0x7f) { + /* Real-time messages check */ + if (data > 0xf7) + return midistatefn[STIN_SYS_REAL].Fn(card_mpuin, data); + + /* Invalid data! */ + DPF(2, "Invalid data!\n"); + + card_mpuin->curstate = STIN_PARSE; + tmp = (unsigned long) data; + tmp = tmp << 8; + tmp |= (unsigned long) card_mpuin->status; + + emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATAERROR, tmp, 0); + + return -1; + } + + card_mpuin->curstate = STIN_2BYTE; + tmp = (unsigned long) data; + tmp = tmp << 8; + tmp |= (unsigned long) card_mpuin->status; + + emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATA, tmp, 2); + + return 0; +} + +static int sblive_miStateSysCommon2(struct emu10k1_mpuin *card_mpuin, u8 data) +{ + card_mpuin->fstatus = data; + card_mpuin->curstate = STIN_SYS_COMMON_2_KEY; + + return CTSTATUS_NEXT_BYTE; +} + +static int sblive_miStateSysCommon2Key(struct emu10k1_mpuin *card_mpuin, u8 data) +/* byte 1 */ +{ + unsigned long tmp; + + if (data > 0x7f) { + /* Real-time messages check */ + if (data > 0xf7) + return midistatefn[STIN_SYS_REAL].Fn(card_mpuin, data); + + /* Invalid data! */ + DPF(2, "Invalid data!\n"); + + card_mpuin->curstate = card_mpuin->laststate; + tmp = (unsigned long) data; + tmp = tmp << 8; + tmp |= (unsigned long) card_mpuin->fstatus; + + emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATAERROR, tmp, 0); + + return -1; + } + + card_mpuin->curstate = card_mpuin->laststate; + tmp = (unsigned long) data; + tmp = tmp << 8; + tmp |= (unsigned long) card_mpuin->fstatus; + + emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATA, tmp, 2); + + return 0; +} + +static int sblive_miStateSysCommon3(struct emu10k1_mpuin *card_mpuin, u8 data) +{ + card_mpuin->fstatus = data; + card_mpuin->curstate = STIN_SYS_COMMON_3_KEY; + + return CTSTATUS_NEXT_BYTE; +} + +static int sblive_miStateSysCommon3Key(struct emu10k1_mpuin *card_mpuin, u8 data) +/* byte 1 */ +{ + unsigned long tmp; + + if (data > 0x7f) { + /* Real-time messages check */ + if (data > 0xf7) + return midistatefn[STIN_SYS_REAL].Fn(card_mpuin, data); + + /* Invalid data! */ + DPF(2, "Invalid data!\n"); + + card_mpuin->curstate = card_mpuin->laststate; + tmp = (unsigned long) data; + tmp = tmp << 8; + tmp |= (unsigned long) card_mpuin->fstatus; + + emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATAERROR, tmp, 0); + + return -1; + } + + card_mpuin->data = data; + card_mpuin->curstate = STIN_SYS_COMMON_3_VEL; + + return CTSTATUS_NEXT_BYTE; +} + +static int sblive_miStateSysCommon3Vel(struct emu10k1_mpuin *card_mpuin, u8 data) +/* byte 2 */ +{ + unsigned long tmp; + + if (data > 0x7f) { + /* Real-time messages check */ + if (data > 0xf7) + return midistatefn[STIN_SYS_REAL].Fn(card_mpuin, data); + + /* Invalid data! */ + DPF(2, "Invalid data!\n"); + + card_mpuin->curstate = card_mpuin->laststate; + tmp = (unsigned long) data; + tmp = tmp << 8; + tmp |= (unsigned long) card_mpuin->data; + tmp = tmp << 8; + tmp |= (unsigned long) card_mpuin->fstatus; + + emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATAERROR, tmp, 0); + + return -1; + } + + card_mpuin->curstate = card_mpuin->laststate; + tmp = (unsigned long) data; + tmp = tmp << 8; + tmp |= (unsigned long) card_mpuin->data; + tmp = tmp << 8; + tmp |= (unsigned long) card_mpuin->fstatus; + + emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATA, tmp, 3); + + return 0; +} + +static int sblive_miStateSysExNorm(struct emu10k1_mpuin *card_mpuin, u8 data) +{ + unsigned long flags; + + if ((data > 0x7f) && (data != 0xf7)) { + /* Real-time messages check */ + if (data > 0xf7) + return midistatefn[STIN_SYS_REAL].Fn(card_mpuin, data); + + /* Invalid Data! */ + DPF(2, "Invalid data!\n"); + + card_mpuin->curstate = card_mpuin->laststate; + + if (card_mpuin->firstmidiq) { + struct midi_queue *midiq; + + midiq = card_mpuin->firstmidiq; + *midiq->midibyte = data; + --midiq->sizeLeft; + ++midiq->midibyte; + + spin_lock_irqsave(&card_mpuin->lock, flags); + + card_mpuin->firstmidiq = midiq->next; + if (card_mpuin->firstmidiq == NULL) + card_mpuin->lastmidiq = NULL; + + spin_unlock_irqrestore(&card_mpuin->lock, flags); + + emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INLONGERROR, (unsigned long) midiq, 0); + + kfree(midiq); + } + + return -1; + } + + if (card_mpuin->firstmidiq) { + struct midi_queue *midiq; + + midiq = card_mpuin->firstmidiq; + *midiq->midibyte = data; + --midiq->sizeLeft; + ++midiq->midibyte; + } + + if (data == 0xf7) { + /* End of Sysex buffer */ + /* Send down the buffer */ + + card_mpuin->curstate = card_mpuin->laststate; + + if (card_mpuin->firstmidiq) { + struct midi_queue *midiq; + + midiq = card_mpuin->firstmidiq; + + spin_lock_irqsave(&card_mpuin->lock, flags); + + card_mpuin->firstmidiq = midiq->next; + if (card_mpuin->firstmidiq == NULL) + card_mpuin->lastmidiq = NULL; + + spin_unlock_irqrestore(&card_mpuin->lock, flags); + + emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INLONGDATA, (unsigned long) midiq, 0); + + kfree(midiq); + } + + return 0; + } + + if (card_mpuin->firstmidiq) { + struct midi_queue *midiq; + + midiq = card_mpuin->firstmidiq; + + if (midiq->sizeLeft == 0) { + /* Special case */ + + spin_lock_irqsave(&card_mpuin->lock, flags); + + card_mpuin->firstmidiq = midiq->next; + if (card_mpuin->firstmidiq == NULL) + card_mpuin->lastmidiq = NULL; + + spin_unlock_irqrestore(&card_mpuin->lock, flags); + + emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INLONGDATA, (unsigned long) midiq, 0); + + kfree(midiq); + + return CTSTATUS_NEXT_BYTE; + } + } + + return CTSTATUS_NEXT_BYTE; +} + +static int sblive_miStateSysReal(struct emu10k1_mpuin *card_mpuin, u8 data) +{ + emu10k1_mpuin_callback(card_mpuin, ICARDMIDI_INDATA, data, 1); + + return CTSTATUS_NEXT_BYTE; +} |