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-rw-r--r--sound/oss/emu10k1/ecard.c157
1 files changed, 0 insertions, 157 deletions
diff --git a/sound/oss/emu10k1/ecard.c b/sound/oss/emu10k1/ecard.c
deleted file mode 100644
index 4ae635f..0000000
--- a/sound/oss/emu10k1/ecard.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/*
- **********************************************************************
- * ecard.c - E-card initialization code
- * 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 "ecard.h"
-#include "hwaccess.h"
-
-/* Private routines */
-static void ecard_setadcgain(struct emu10k1_card *, struct ecard_state *, u16);
-static void ecard_write(struct emu10k1_card *, u32);
-
-/**************************************************************************
- * @func Set the gain of the ECARD's CS3310 Trim/gain controller. The
- * trim value consists of a 16bit value which is composed of two
- * 8 bit gain/trim values, one for the left channel and one for the
- * right channel. The following table maps from the Gain/Attenuation
- * value in decibels into the corresponding bit pattern for a single
- * channel.
- */
-
-static void ecard_setadcgain(struct emu10k1_card *card, struct ecard_state *ecard, u16 gain)
-{
- u32 currbit;
- ecard->adc_gain = gain;
-
- /* Enable writing to the TRIM registers */
- ecard_write(card, ecard->control_bits & ~EC_TRIM_CSN);
-
- /* Do it again to insure that we meet hold time requirements */
- ecard_write(card, ecard->control_bits & ~EC_TRIM_CSN);
-
- for (currbit = (1L << 15); currbit; currbit >>= 1) {
-
- u32 value = ecard->control_bits & ~(EC_TRIM_CSN|EC_TRIM_SDATA);
-
- if (gain & currbit)
- value |= EC_TRIM_SDATA;
-
- /* Clock the bit */
- ecard_write(card, value);
- ecard_write(card, value | EC_TRIM_SCLK);
- ecard_write(card, value);
- }
-
- ecard_write(card, ecard->control_bits);
-}
-
-/**************************************************************************
- * @func Clock bits into the Ecard's control latch. The Ecard uses a
- * control latch will is loaded bit-serially by toggling the Modem control
- * lines from function 2 on the E8010. This function hides these details
- * and presents the illusion that we are actually writing to a distinct
- * register.
- */
-static void ecard_write(struct emu10k1_card *card, u32 value)
-{
- u16 count;
- u32 data, hcvalue;
- unsigned long flags;
-
- spin_lock_irqsave(&card->lock, flags);
-
- hcvalue = inl(card->iobase + HCFG) & ~(HOOKN_BIT|HANDN_BIT|PULSEN_BIT);
-
- outl(card->iobase + HCFG, hcvalue);
-
- for (count = 0 ; count < EC_NUM_CONTROL_BITS; count++) {
-
- /* Set up the value */
- data = ((value & 0x1) ? PULSEN_BIT : 0);
- value >>= 1;
-
- outl(card->iobase + HCFG, hcvalue | data);
-
- /* Clock the shift register */
- outl(card->iobase + HCFG, hcvalue | data | HANDN_BIT);
- outl(card->iobase + HCFG, hcvalue | data);
- }
-
- /* Latch the bits */
- outl(card->iobase + HCFG, hcvalue | HOOKN_BIT);
- outl(card->iobase + HCFG, hcvalue);
-
- spin_unlock_irqrestore(&card->lock, flags);
-}
-
-void __devinit emu10k1_ecard_init(struct emu10k1_card *card)
-{
- u32 hcvalue;
- struct ecard_state ecard;
-
- /* Set up the initial settings */
- ecard.mux0_setting = EC_DEFAULT_SPDIF0_SEL;
- ecard.mux1_setting = EC_DEFAULT_SPDIF1_SEL;
- ecard.mux2_setting = 0;
- ecard.adc_gain = EC_DEFAULT_ADC_GAIN;
- ecard.control_bits = EC_RAW_RUN_MODE |
- EC_SPDIF0_SELECT(ecard.mux0_setting) |
- EC_SPDIF1_SELECT(ecard.mux1_setting);
-
-
- /* Step 0: Set the codec type in the hardware control register
- * and enable audio output */
- hcvalue = emu10k1_readfn0(card, HCFG);
- emu10k1_writefn0(card, HCFG, hcvalue | HCFG_AUDIOENABLE | HCFG_CODECFORMAT_I2S);
-
- /* Step 1: Turn off the led and deassert TRIM_CS */
- ecard_write(card, EC_ADCCAL | EC_LEDN | EC_TRIM_CSN);
-
- /* Step 2: Calibrate the ADC and DAC */
- ecard_write(card, EC_DACCAL | EC_LEDN | EC_TRIM_CSN);
-
- /* Step 3: Wait for awhile; FIXME: Is this correct? */
-
- current->state = TASK_INTERRUPTIBLE;
- schedule_timeout(HZ);
-
- /* Step 4: Switch off the DAC and ADC calibration. Note
- * That ADC_CAL is actually an inverted signal, so we assert
- * it here to stop calibration. */
- ecard_write(card, EC_ADCCAL | EC_LEDN | EC_TRIM_CSN);
-
- /* Step 4: Switch into run mode */
- ecard_write(card, ecard.control_bits);
-
- /* Step 5: Set the analog input gain */
- ecard_setadcgain(card, &ecard, ecard.adc_gain);
-}
-
-
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