/* * Routine for IRQ handling from GF1/InterWave chip * Copyright (c) by Jaroslav Kysela * * * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #include #include #include #ifdef CONFIG_SND_DEBUG #define STAT_ADD(x) ((x)++) #else #define STAT_ADD(x) while (0) { ; } #endif irqreturn_t snd_gus_interrupt(int irq, void *dev_id) { struct snd_gus_card * gus = dev_id; unsigned char status; int loop = 100; int handled = 0; __again: status = inb(gus->gf1.reg_irqstat); if (status == 0) return IRQ_RETVAL(handled); handled = 1; /* snd_printk(KERN_DEBUG "IRQ: status = 0x%x\n", status); */ if (status & 0x02) { STAT_ADD(gus->gf1.interrupt_stat_midi_in); if (gus->gf1.interrupt_handler_midi_in) gus->gf1.interrupt_handler_midi_in(gus); } if (status & 0x01) { STAT_ADD(gus->gf1.interrupt_stat_midi_out); if (gus->gf1.interrupt_handler_midi_out) gus->gf1.interrupt_handler_midi_out(gus); } if (status & (0x20 | 0x40)) { unsigned int already, _current_; unsigned char voice_status, voice; struct snd_gus_voice *pvoice; already = 0; while (((voice_status = snd_gf1_i_read8(gus, SNDRV_GF1_GB_VOICES_IRQ)) & 0xc0) != 0xc0) { voice = voice_status & 0x1f; _current_ = 1 << voice; if (already & _current_) continue; /* multi request */ already |= _current_; /* mark request */ #if 0 printk(KERN_DEBUG "voice = %i, voice_status = 0x%x, " "voice_verify = %i\n", voice, voice_status, inb(GUSP(gus, GF1PAGE))); #endif pvoice = &gus->gf1.voices[voice]; if (pvoice->use) { if (!(voice_status & 0x80)) { /* voice position IRQ */ STAT_ADD(pvoice->interrupt_stat_wave); pvoice->handler_wave(gus, pvoice); } if (!(voice_status & 0x40)) { /* volume ramp IRQ */ STAT_ADD(pvoice->interrupt_stat_volume); pvoice->handler_volume(gus, pvoice); } } else { STAT_ADD(gus->gf1.interrupt_stat_voice_lost); snd_gf1_i_ctrl_stop(gus, SNDRV_GF1_VB_ADDRESS_CONTROL); snd_gf1_i_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL); } } } if (status & 0x04) { STAT_ADD(gus->gf1.interrupt_stat_timer1); if (gus->gf1.interrupt_handler_timer1) gus->gf1.interrupt_handler_timer1(gus); } if (status & 0x08) { STAT_ADD(gus->gf1.interrupt_stat_timer2); if (gus->gf1.interrupt_handler_timer2) gus->gf1.interrupt_handler_timer2(gus); } if (status & 0x80) { if (snd_gf1_i_look8(gus, SNDRV_GF1_GB_DRAM_DMA_CONTROL) & 0x40) { STAT_ADD(gus->gf1.interrupt_stat_dma_write); if (gus->gf1.interrupt_handler_dma_write) gus->gf1.interrupt_handler_dma_write(gus); } if (snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL) & 0x40) { STAT_ADD(gus->gf1.interrupt_stat_dma_read); if (gus->gf1.interrupt_handler_dma_read) gus->gf1.interrupt_handler_dma_read(gus); } } if (--loop > 0) goto __again; return IRQ_NONE; } #ifdef CONFIG_SND_DEBUG static void snd_gus_irq_info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { struct snd_gus_card *gus; struct snd_gus_voice *pvoice; int idx; gus = entry->private_data; snd_iprintf(buffer, "midi out = %u\n", gus->gf1.interrupt_stat_midi_out); snd_iprintf(buffer, "midi in = %u\n", gus->gf1.interrupt_stat_midi_in); snd_iprintf(buffer, "timer1 = %u\n", gus->gf1.interrupt_stat_timer1); snd_iprintf(buffer, "timer2 = %u\n", gus->gf1.interrupt_stat_timer2); snd_iprintf(buffer, "dma write = %u\n", gus->gf1.interrupt_stat_dma_write); snd_iprintf(buffer, "dma read = %u\n", gus->gf1.interrupt_stat_dma_read); snd_iprintf(buffer, "voice lost = %u\n", gus->gf1.interrupt_stat_voice_lost); for (idx = 0; idx < 32; idx++) { pvoice = &gus->gf1.voices[idx]; snd_iprintf(buffer, "voice %i: wave = %u, volume = %u\n", idx, pvoice->interrupt_stat_wave, pvoice->interrupt_stat_volume); } } void snd_gus_irq_profile_init(struct snd_gus_card *gus) { struct snd_info_entry *entry; if (! snd_card_proc_new(gus->card, "gusirq", &entry)) snd_info_set_text_ops(entry, gus, snd_gus_irq_info_read); } #endif dt' onchange='this.form.submit();'>
authorAleksander Morgado <aleksander@aleksander.es>2017-01-18 21:31:31 +0100
committerJohan Hovold <johan@kernel.org>2017-01-19 09:08:37 +0100
commit24d615a694d649aa2e167c3f97f62bdad07e3f84 (patch)
tree2fe33c115bdec6bf4b01e27afd90bb16fa668e22 /net/bluetooth/hidp/Kconfig
parent49def1853334396f948dcb4cedb9347abb318df5 (diff)
USB: serial: qcserial: add Dell DW5570 QDL
The Dell DW5570 is a re-branded Sierra Wireless MC8805 which will by default boot with vid 0x413c and pid 0x81a3. When triggered QDL download mode, the device switches to pid 0x81a6 and provides the standard TTY used for firmware upgrade. Cc: <stable@vger.kernel.org> Signed-off-by: Aleksander Morgado <aleksander@aleksander.es> Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'net/bluetooth/hidp/Kconfig')