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Diffstat (limited to 'ANDROID_3.4.5/sound/drivers/vx/vx_uer.c')
-rw-r--r--ANDROID_3.4.5/sound/drivers/vx/vx_uer.c312
1 files changed, 0 insertions, 312 deletions
diff --git a/ANDROID_3.4.5/sound/drivers/vx/vx_uer.c b/ANDROID_3.4.5/sound/drivers/vx/vx_uer.c
deleted file mode 100644
index b0560fec..00000000
--- a/ANDROID_3.4.5/sound/drivers/vx/vx_uer.c
+++ /dev/null
@@ -1,312 +0,0 @@
-/*
- * Driver for Digigram VX soundcards
- *
- * IEC958 stuff
- *
- * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
- *
- * 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 <linux/delay.h>
-#include <sound/core.h>
-#include <sound/vx_core.h>
-#include "vx_cmd.h"
-
-
-/*
- * vx_modify_board_clock - tell the board that its clock has been modified
- * @sync: DSP needs to resynchronize its FIFO
- */
-static int vx_modify_board_clock(struct vx_core *chip, int sync)
-{
- struct vx_rmh rmh;
-
- vx_init_rmh(&rmh, CMD_MODIFY_CLOCK);
- /* Ask the DSP to resynchronize its FIFO. */
- if (sync)
- rmh.Cmd[0] |= CMD_MODIFY_CLOCK_S_BIT;
- return vx_send_msg(chip, &rmh);
-}
-
-/*
- * vx_modify_board_inputs - resync audio inputs
- */
-static int vx_modify_board_inputs(struct vx_core *chip)
-{
- struct vx_rmh rmh;
-
- vx_init_rmh(&rmh, CMD_RESYNC_AUDIO_INPUTS);
- rmh.Cmd[0] |= 1 << 0; /* reference: AUDIO 0 */
- return vx_send_msg(chip, &rmh);
-}
-
-/*
- * vx_read_one_cbit - read one bit from UER config
- * @index: the bit index
- * returns 0 or 1.
- */
-static int vx_read_one_cbit(struct vx_core *chip, int index)
-{
- unsigned long flags;
- int val;
- spin_lock_irqsave(&chip->lock, flags);
- if (chip->type >= VX_TYPE_VXPOCKET) {
- vx_outb(chip, CSUER, 1); /* read */
- vx_outb(chip, RUER, index & XX_UER_CBITS_OFFSET_MASK);
- val = (vx_inb(chip, RUER) >> 7) & 0x01;
- } else {
- vx_outl(chip, CSUER, 1); /* read */
- vx_outl(chip, RUER, index & XX_UER_CBITS_OFFSET_MASK);
- val = (vx_inl(chip, RUER) >> 7) & 0x01;
- }
- spin_unlock_irqrestore(&chip->lock, flags);
- return val;
-}
-
-/*
- * vx_write_one_cbit - write one bit to UER config
- * @index: the bit index
- * @val: bit value, 0 or 1
- */
-static void vx_write_one_cbit(struct vx_core *chip, int index, int val)
-{
- unsigned long flags;
- val = !!val; /* 0 or 1 */
- spin_lock_irqsave(&chip->lock, flags);
- if (vx_is_pcmcia(chip)) {
- vx_outb(chip, CSUER, 0); /* write */
- vx_outb(chip, RUER, (val << 7) | (index & XX_UER_CBITS_OFFSET_MASK));
- } else {
- vx_outl(chip, CSUER, 0); /* write */
- vx_outl(chip, RUER, (val << 7) | (index & XX_UER_CBITS_OFFSET_MASK));
- }
- spin_unlock_irqrestore(&chip->lock, flags);
-}
-
-/*
- * vx_read_uer_status - read the current UER status
- * @mode: pointer to store the UER mode, VX_UER_MODE_XXX
- *
- * returns the frequency of UER, or 0 if not sync,
- * or a negative error code.
- */
-static int vx_read_uer_status(struct vx_core *chip, unsigned int *mode)
-{
- int val, freq;
-
- /* Default values */
- freq = 0;
-
- /* Read UER status */
- if (vx_is_pcmcia(chip))
- val = vx_inb(chip, CSUER);
- else
- val = vx_inl(chip, CSUER);
- if (val < 0)
- return val;
- /* If clock is present, read frequency */
- if (val & VX_SUER_CLOCK_PRESENT_MASK) {
- switch (val & VX_SUER_FREQ_MASK) {
- case VX_SUER_FREQ_32KHz_MASK:
- freq = 32000;
- break;
- case VX_SUER_FREQ_44KHz_MASK:
- freq = 44100;
- break;
- case VX_SUER_FREQ_48KHz_MASK:
- freq = 48000;
- break;
- }
- }
- if (val & VX_SUER_DATA_PRESENT_MASK)
- /* bit 0 corresponds to consumer/professional bit */
- *mode = vx_read_one_cbit(chip, 0) ?
- VX_UER_MODE_PROFESSIONAL : VX_UER_MODE_CONSUMER;
- else
- *mode = VX_UER_MODE_NOT_PRESENT;
-
- return freq;
-}
-
-
-/*
- * compute the sample clock value from frequency
- *
- * The formula is as follows:
- *
- * HexFreq = (dword) ((double) ((double) 28224000 / (double) Frequency))
- * switch ( HexFreq & 0x00000F00 )
- * case 0x00000100: ;
- * case 0x00000200:
- * case 0x00000300: HexFreq -= 0x00000201 ;
- * case 0x00000400:
- * case 0x00000500:
- * case 0x00000600:
- * case 0x00000700: HexFreq = (dword) (((double) 28224000 / (double) (Frequency*2)) - 1)
- * default : HexFreq = (dword) ((double) 28224000 / (double) (Frequency*4)) - 0x000001FF
- */
-
-static int vx_calc_clock_from_freq(struct vx_core *chip, int freq)
-{
- int hexfreq;
-
- if (snd_BUG_ON(freq <= 0))
- return 0;
-
- hexfreq = (28224000 * 10) / freq;
- hexfreq = (hexfreq + 5) / 10;
-
- /* max freq = 55125 Hz */
- if (snd_BUG_ON(hexfreq <= 0x00000200))
- return 0;
-
- if (hexfreq <= 0x03ff)
- return hexfreq - 0x00000201;
- if (hexfreq <= 0x07ff)
- return (hexfreq / 2) - 1;
- if (hexfreq <= 0x0fff)
- return (hexfreq / 4) + 0x000001ff;
-
- return 0x5fe; /* min freq = 6893 Hz */
-}
-
-
-/*
- * vx_change_clock_source - change the clock source
- * @source: the new source
- */
-static void vx_change_clock_source(struct vx_core *chip, int source)
-{
- unsigned long flags;
-
- /* we mute DAC to prevent clicks */
- vx_toggle_dac_mute(chip, 1);
- spin_lock_irqsave(&chip->lock, flags);
- chip->ops->set_clock_source(chip, source);
- chip->clock_source = source;
- spin_unlock_irqrestore(&chip->lock, flags);
- /* unmute */
- vx_toggle_dac_mute(chip, 0);
-}
-
-
-/*
- * set the internal clock
- */
-void vx_set_internal_clock(struct vx_core *chip, unsigned int freq)
-{
- int clock;
- unsigned long flags;
- /* Get real clock value */
- clock = vx_calc_clock_from_freq(chip, freq);
- snd_printdd(KERN_DEBUG "set internal clock to 0x%x from freq %d\n", clock, freq);
- spin_lock_irqsave(&chip->lock, flags);
- if (vx_is_pcmcia(chip)) {
- vx_outb(chip, HIFREQ, (clock >> 8) & 0x0f);
- vx_outb(chip, LOFREQ, clock & 0xff);
- } else {
- vx_outl(chip, HIFREQ, (clock >> 8) & 0x0f);
- vx_outl(chip, LOFREQ, clock & 0xff);
- }
- spin_unlock_irqrestore(&chip->lock, flags);
-}
-
-
-/*
- * set the iec958 status bits
- * @bits: 32-bit status bits
- */
-void vx_set_iec958_status(struct vx_core *chip, unsigned int bits)
-{
- int i;
-
- if (chip->chip_status & VX_STAT_IS_STALE)
- return;
-
- for (i = 0; i < 32; i++)
- vx_write_one_cbit(chip, i, bits & (1 << i));
-}
-
-
-/*
- * vx_set_clock - change the clock and audio source if necessary
- */
-int vx_set_clock(struct vx_core *chip, unsigned int freq)
-{
- int src_changed = 0;
-
- if (chip->chip_status & VX_STAT_IS_STALE)
- return 0;
-
- /* change the audio source if possible */
- vx_sync_audio_source(chip);
-
- if (chip->clock_mode == VX_CLOCK_MODE_EXTERNAL ||
- (chip->clock_mode == VX_CLOCK_MODE_AUTO &&
- chip->audio_source == VX_AUDIO_SRC_DIGITAL)) {
- if (chip->clock_source != UER_SYNC) {
- vx_change_clock_source(chip, UER_SYNC);
- mdelay(6);
- src_changed = 1;
- }
- } else if (chip->clock_mode == VX_CLOCK_MODE_INTERNAL ||
- (chip->clock_mode == VX_CLOCK_MODE_AUTO &&
- chip->audio_source != VX_AUDIO_SRC_DIGITAL)) {
- if (chip->clock_source != INTERNAL_QUARTZ) {
- vx_change_clock_source(chip, INTERNAL_QUARTZ);
- src_changed = 1;
- }
- if (chip->freq == freq)
- return 0;
- vx_set_internal_clock(chip, freq);
- if (src_changed)
- vx_modify_board_inputs(chip);
- }
- if (chip->freq == freq)
- return 0;
- chip->freq = freq;
- vx_modify_board_clock(chip, 1);
- return 0;
-}
-
-
-/*
- * vx_change_frequency - called from interrupt handler
- */
-int vx_change_frequency(struct vx_core *chip)
-{
- int freq;
-
- if (chip->chip_status & VX_STAT_IS_STALE)
- return 0;
-
- if (chip->clock_source == INTERNAL_QUARTZ)
- return 0;
- /*
- * Read the real UER board frequency
- */
- freq = vx_read_uer_status(chip, &chip->uer_detected);
- if (freq < 0)
- return freq;
- /*
- * The frequency computed by the DSP is good and
- * is different from the previous computed.
- */
- if (freq == 48000 || freq == 44100 || freq == 32000)
- chip->freq_detected = freq;
-
- return 0;
-}
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