patch-2.3.99-pre6 linux/drivers/sound/emu10k1/recmgr.c

• Lines: 140
• Date: Fri Apr 21 16:08:45 2000
• Orig file: v2.3.99-pre5/linux/drivers/sound/emu10k1/recmgr.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.99-pre5/linux/drivers/sound/emu10k1/recmgr.c linux/drivers/sound/emu10k1/recmgr.c
@@ -0,0 +1,139 @@
+
+/*
+ **********************************************************************
+ *     recmgr.c -- Recording manager for emu10k1 driver
+ *     Copyright 1999, 2000 Creative Labs, Inc.
+ *
+ **********************************************************************
+ *
+ *     Date                 Author          Summary of changes
+ *     ----                 ------          ------------------
+ *     October 20, 1999     Bertrand Lee    base code release
+ *
+ **********************************************************************
+ *
+ *     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 "hwaccess.h"
+#include "recmgr.h"
+
+void emu10k1_start_record(struct record *rec_ptr)
+{
+	struct emu10k1_card *hw_ptr = rec_ptr->card;
+
+	DPF(2, "emu10k1_start_record()\n");
+	DPD(2, "bus addx: %lx\n", rec_ptr->busaddx);
+
+	sblive_writeptr(hw_ptr, rec_ptr->bufaddrreg, 0, rec_ptr->busaddx);
+	sblive_writeptr(hw_ptr, rec_ptr->bufsizereg, 0, rec_ptr->bufsize);
+
+	if (rec_ptr->adcctl)
+		sblive_writeptr(hw_ptr, ADCCR, 0, rec_ptr->adcctl);
+
+	return;
+}
+
+void emu10k1_stop_record(struct record *rec_ptr)
+{
+	struct emu10k1_card *hw_ptr = rec_ptr->card;
+
+	DPF(2, "emu10k1_stop_record()\n");
+
+	/* Disable record transfer */
+	if (rec_ptr->adcctl)
+		sblive_writeptr(hw_ptr, ADCCR, 0, 0);
+
+	sblive_writeptr(hw_ptr, rec_ptr->bufsizereg, 0, ADCBS_BUFSIZE_NONE);
+
+	return;
+}
+
+void emu10k1_set_record_src(struct record *rec_ptr, u8 recsrc)
+{
+	DPF(2, "emu10k1_set_record_src()\n");
+
+	switch (recsrc) {
+
+	case WAVERECORD_AC97:
+		DPF(2, "recording source: AC97\n");
+		rec_ptr->bufsizereg = ADCBS;
+		rec_ptr->bufaddrreg = ADCBA;
+		rec_ptr->bufidxreg = ADCIDX_IDX;
+
+		switch (rec_ptr->samplingrate) {
+		case 0xBB80:
+			rec_ptr->adcctl = ADCCR_SAMPLERATE_48;
+			break;
+		case 0xAC44:
+			rec_ptr->adcctl = ADCCR_SAMPLERATE_44;
+			break;
+		case 0x7D00:
+			rec_ptr->adcctl = ADCCR_SAMPLERATE_32;
+			break;
+		case 0x5DC0:
+			rec_ptr->adcctl = ADCCR_SAMPLERATE_24;
+			break;
+		case 0x5622:
+			rec_ptr->adcctl = ADCCR_SAMPLERATE_22;
+			break;
+		case 0x3E80:
+			rec_ptr->adcctl = ADCCR_SAMPLERATE_16;
+			break;
+		case 0x2B11:
+			rec_ptr->adcctl = ADCCR_SAMPLERATE_11;
+			break;
+		case 0x1F40:
+			rec_ptr->adcctl = ADCCR_SAMPLERATE_8;
+			break;
+		default:
+			break;
+		}
+
+		rec_ptr->adcctl |= ADCCR_LCHANENABLE;
+
+		if (rec_ptr->is_stereo)
+			rec_ptr->adcctl |= ADCCR_RCHANENABLE;
+
+		//      rec_ptr->fxwc = 0;
+
+		break;
+
+	case WAVERECORD_MIC:
+		DPF(2, "recording source: MIC\n");
+		rec_ptr->bufsizereg = MICBS;
+		rec_ptr->bufaddrreg = MICBA;
+		rec_ptr->bufidxreg = MICIDX_IDX;
+		rec_ptr->adcctl = 0;
+		//      rec_ptr->fxwc = 0;
+		break;
+
+	case WAVERECORD_FX:
+		DPF(2, "recording source: FX\n");
+		rec_ptr->bufsizereg = FXBS;
+		rec_ptr->bufaddrreg = FXBA;
+		rec_ptr->bufidxreg = FXIDX_IDX;
+		rec_ptr->adcctl = 0;
+		//      rec_ptr->fxwc = 0x000ffff;
+		break;
+	default:
+		break;
+	}
+
+	return;
+}