5 |
#define spin_lock_bh spin_lock |
#define spin_lock_bh spin_lock |
6 |
#define spin_unlock_bh spin_unlock |
#define spin_unlock_bh spin_unlock |
7 |
#endif |
#endif |
|
#define __NO_VERSION__ |
|
8 |
|
|
9 |
/* |
#include "../../alsa-kernel/drivers/vx/vx_core.c" |
|
* Driver for Digigram VX soundcards |
|
|
* |
|
|
* Hardware core part |
|
|
* |
|
|
* 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 <sound/driver.h> |
|
|
#include <linux/delay.h> |
|
|
#include <linux/slab.h> |
|
|
#include <linux/interrupt.h> |
|
|
#include <sound/core.h> |
|
|
#include <sound/pcm.h> |
|
|
#include <sound/asoundef.h> |
|
|
#include <sound/info.h> |
|
|
#include <asm/io.h> |
|
|
#include "vx_core.h" |
|
|
#include "vx_cmd.h" |
|
|
|
|
|
MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>"); |
|
|
MODULE_DESCRIPTION("Common routines for Digigram VX drivers"); |
|
|
MODULE_LICENSE("GPL"); |
|
|
|
|
|
|
|
|
/* |
|
|
* snd_vx_delay - delay for the specified time |
|
|
* @xmsec: the time to delay in msec |
|
|
*/ |
|
|
void snd_vx_delay(vx_core_t *chip, int xmsec) |
|
|
{ |
|
|
if (! (chip->chip_status & VX_STAT_IN_SUSPEND) && ! in_interrupt() && |
|
|
xmsec >= 1000 / HZ) { |
|
|
set_current_state(TASK_UNINTERRUPTIBLE); |
|
|
schedule_timeout((xmsec * HZ + 999) / 1000); |
|
|
} else { |
|
|
mdelay(xmsec); |
|
|
} |
|
|
} |
|
|
|
|
|
/* |
|
|
* vx_check_reg_bit - wait for the specified bit is set/reset on a register |
|
|
* @reg: register to check |
|
|
* @mask: bit mask |
|
|
* @bit: resultant bit to be checked |
|
|
* @time: time-out of loop in msec |
|
|
* |
|
|
* returns zero if a bit matches, or a negative error code. |
|
|
*/ |
|
|
int snd_vx_check_reg_bit(vx_core_t *chip, int reg, int mask, int bit, int time) |
|
|
{ |
|
|
long end_time = jiffies + (time * HZ + 999) / 1000; |
|
|
#ifdef CONFIG_SND_DEBUG |
|
|
static char *reg_names[VX_REG_MAX] = { |
|
|
"ICR", "CVR", "ISR", "IVR", "RXH", "RXM", "RXL", |
|
|
"DMA", "CDSP", "RFREQ", "RUER/V2", "DATA", "MEMIRQ", |
|
|
"ACQ", "BIT0", "BIT1", "MIC0", "MIC1", "MIC2", |
|
|
"MIC3", "INTCSR", "CNTRL", "GPIOC", |
|
|
"LOFREQ", "HIFREQ", "CSUER", "RUER" |
|
|
}; |
|
|
#endif |
|
|
do { |
|
|
if ((snd_vx_inb(chip, reg) & mask) == bit) |
|
|
return 0; |
|
|
//snd_vx_delay(chip, 10); |
|
|
} while (time_after_eq(end_time, jiffies)); |
|
|
snd_printd(KERN_DEBUG "vx_check_reg_bit: timeout, reg=%s, mask=0x%x, val=0x%x\n", reg_names[reg], mask, snd_vx_inb(chip, reg)); |
|
|
return -EIO; |
|
|
} |
|
|
|
|
|
/* |
|
|
* vx_send_irq_dsp - set command irq bit |
|
|
* @num: the requested IRQ type, IRQ_XXX |
|
|
* |
|
|
* this triggers the specified IRQ request |
|
|
* returns 0 if successful, or a negative error code. |
|
|
* |
|
|
*/ |
|
|
static int vx_send_irq_dsp(vx_core_t *chip, int num) |
|
|
{ |
|
|
int nirq; |
|
|
|
|
|
/* wait for Hc = 0 */ |
|
|
if (snd_vx_check_reg_bit(chip, VX_CVR, CVR_HC, 0, 200) < 0) |
|
|
return -EIO; |
|
|
|
|
|
nirq = num; |
|
|
if (vx_has_new_dsp(chip)) |
|
|
nirq += VXP_IRQ_OFFSET; |
|
|
vx_outb(chip, CVR, (nirq >> 1) | CVR_HC); |
|
|
return 0; |
|
|
} |
|
|
|
|
|
|
|
|
/* |
|
|
* vx_reset_chk - reset CHK bit on ISR |
|
|
* |
|
|
* returns 0 if successful, or a negative error code. |
|
|
*/ |
|
|
static int vx_reset_chk(vx_core_t *chip) |
|
|
{ |
|
|
/* Reset irq CHK */ |
|
|
if (vx_send_irq_dsp(chip, IRQ_RESET_CHK) < 0) |
|
|
return -EIO; |
|
|
/* Wait until CHK = 0 */ |
|
|
if (vx_check_isr(chip, ISR_CHK, 0, 200) < 0) |
|
|
return -EIO; |
|
|
return 0; |
|
|
} |
|
|
|
|
|
/* |
|
|
* vx_transfer_end - terminate message transfer |
|
|
* @cmd: IRQ message to send (IRQ_MESS_XXX_END) |
|
|
* |
|
|
* returns 0 if successful, or a negative error code. |
|
|
* the error code can be VX-specific, retrieved via vx_get_error(). |
|
|
* NB: call with spinlock held! |
|
|
*/ |
|
|
static int vx_transfer_end(vx_core_t *chip, int cmd) |
|
|
{ |
|
|
int err; |
|
|
|
|
|
if ((err = vx_reset_chk(chip)) < 0) |
|
|
return err; |
|
|
|
|
|
/* irq MESS_READ/WRITE_END */ |
|
|
if ((err = vx_send_irq_dsp(chip, cmd)) < 0) |
|
|
return err; |
|
|
|
|
|
/* Wait CHK = 1 */ |
|
|
if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0) |
|
|
return err; |
|
|
|
|
|
/* If error, Read RX */ |
|
|
if ((err = vx_inb(chip, ISR)) & ISR_ERR) { |
|
|
if ((err = vx_wait_for_rx_full(chip)) < 0) { |
|
|
snd_printd(KERN_DEBUG "transfer_end: error in rx_full\n"); |
|
|
return err; |
|
|
} |
|
|
err = vx_inb(chip, RXH) << 16; |
|
|
err |= vx_inb(chip, RXM) << 8; |
|
|
err |= vx_inb(chip, RXL); |
|
|
snd_printd(KERN_DEBUG "transfer_end: error = 0x%x\n", err); |
|
|
return -(VX_ERR_MASK | err); |
|
|
} |
|
|
return 0; |
|
|
} |
|
|
|
|
|
/* |
|
|
* vx_read_status - return the status rmh |
|
|
* @rmh: rmh record to store the status |
|
|
* |
|
|
* returns 0 if successful, or a negative error code. |
|
|
* the error code can be VX-specific, retrieved via vx_get_error(). |
|
|
* NB: call with spinlock held! |
|
|
*/ |
|
|
static int vx_read_status(vx_core_t *chip, struct vx_rmh *rmh) |
|
|
{ |
|
|
int i, err, val, size; |
|
|
|
|
|
/* no read necessary? */ |
|
|
if (rmh->DspStat == RMH_SSIZE_FIXED && rmh->LgStat == 0) |
|
|
return 0; |
|
|
|
|
|
/* Wait for RX full (with timeout protection) |
|
|
* The first word of status is in RX |
|
|
*/ |
|
|
err = vx_wait_for_rx_full(chip); |
|
|
if (err < 0) |
|
|
return err; |
|
|
|
|
|
/* Read RX */ |
|
|
val = vx_inb(chip, RXH) << 16; |
|
|
val |= vx_inb(chip, RXM) << 8; |
|
|
val |= vx_inb(chip, RXL); |
|
|
|
|
|
/* If status given by DSP, let's decode its size */ |
|
|
switch (rmh->DspStat) { |
|
|
case RMH_SSIZE_ARG: |
|
|
size = val & 0xff; |
|
|
rmh->Stat[0] = val & 0xffff00; |
|
|
rmh->LgStat = size + 1; |
|
|
break; |
|
|
case RMH_SSIZE_MASK: |
|
|
/* Let's count the arg numbers from a mask */ |
|
|
rmh->Stat[0] = val; |
|
|
size = 0; |
|
|
while (val) { |
|
|
if (val & 0x01) |
|
|
size++; |
|
|
val >>= 1; |
|
|
} |
|
|
rmh->LgStat = size + 1; |
|
|
break; |
|
|
default: |
|
|
/* else retrieve the status length given by the driver */ |
|
|
size = rmh->LgStat; |
|
|
rmh->Stat[0] = val; /* Val is the status 1st word */ |
|
|
size--; /* hence adjust remaining length */ |
|
|
break; |
|
|
} |
|
|
|
|
|
if (size < 1) |
|
|
return 0; |
|
|
snd_assert(size <= SIZE_MAX_STATUS, return -EINVAL); |
|
|
|
|
|
for (i = 1; i <= size; i++) { |
|
|
/* trigger an irq MESS_WRITE_NEXT */ |
|
|
err = vx_send_irq_dsp(chip, IRQ_MESS_WRITE_NEXT); |
|
|
if (err < 0) |
|
|
return err; |
|
|
/* Wait for RX full (with timeout protection) */ |
|
|
err = vx_wait_for_rx_full(chip); |
|
|
if (err < 0) |
|
|
return err; |
|
|
rmh->Stat[i] = vx_inb(chip, RXH) << 16; |
|
|
rmh->Stat[i] |= vx_inb(chip, RXM) << 8; |
|
|
rmh->Stat[i] |= vx_inb(chip, RXL); |
|
|
} |
|
|
|
|
|
return vx_transfer_end(chip, IRQ_MESS_WRITE_END); |
|
|
} |
|
|
|
|
|
|
|
|
#define MASK_MORE_THAN_1_WORD_COMMAND 0x00008000 |
|
|
#define MASK_1_WORD_COMMAND 0x00ff7fff |
|
|
|
|
|
/* |
|
|
* vx_send_msg_nolock - send a DSP message and read back the status |
|
|
* @rmh: the rmh record to send and receive |
|
|
* |
|
|
* returns 0 if successful, or a negative error code. |
|
|
* the error code can be VX-specific, retrieved via vx_get_error(). |
|
|
* |
|
|
* this function doesn't call spinlock at all. |
|
|
*/ |
|
|
int vx_send_msg_nolock(vx_core_t *chip, struct vx_rmh *rmh) |
|
|
{ |
|
|
int i, err; |
|
|
|
|
|
if (chip->chip_status & VX_STAT_IS_STALE) |
|
|
return -EBUSY; |
|
|
|
|
|
if ((err = vx_reset_chk(chip)) < 0) { |
|
|
snd_printd(KERN_DEBUG "vx_send_msg: vx_reset_chk error\n"); |
|
|
return err; |
|
|
} |
|
|
|
|
|
#if 0 |
|
|
printk(KERN_DEBUG "rmh: cmd = 0x%06x, length = %d, stype = %d\n", |
|
|
rmh->Cmd[0], rmh->LgCmd, rmh->DspStat); |
|
|
if (rmh->LgCmd > 1) { |
|
|
printk(KERN_DEBUG " "); |
|
|
for (i = 1; i < rmh->LgCmd; i++) |
|
|
printk("0x%06x ", rmh->Cmd[i]); |
|
|
printk("\n"); |
|
|
} |
|
|
#endif |
|
|
/* Check bit M is set according to length of the command */ |
|
|
if (rmh->LgCmd > 1) |
|
|
rmh->Cmd[0] |= MASK_MORE_THAN_1_WORD_COMMAND; |
|
|
else |
|
|
rmh->Cmd[0] &= MASK_1_WORD_COMMAND; |
|
|
|
|
|
/* Wait for TX empty */ |
|
|
if ((err = vx_wait_isr_bit(chip, ISR_TX_EMPTY)) < 0) { |
|
|
snd_printd(KERN_DEBUG "vx_send_msg: wait tx empty error\n"); |
|
|
return err; |
|
|
} |
|
|
|
|
|
/* Write Cmd[0] */ |
|
|
vx_outb(chip, TXH, (rmh->Cmd[0] >> 16) & 0xff); |
|
|
vx_outb(chip, TXM, (rmh->Cmd[0] >> 8) & 0xff); |
|
|
vx_outb(chip, TXL, rmh->Cmd[0] & 0xff); |
|
|
|
|
|
/* Trigger irq MESSAGE */ |
|
|
if ((err = vx_send_irq_dsp(chip, IRQ_MESSAGE)) < 0) { |
|
|
snd_printd(KERN_DEBUG "vx_send_msg: send IRQ_MESSAGE error\n"); |
|
|
return err; |
|
|
} |
|
|
|
|
|
/* Wait for CHK = 1 */ |
|
|
if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0) |
|
|
return err; |
|
|
|
|
|
/* If error, get error value from RX */ |
|
|
if (vx_inb(chip, ISR) & ISR_ERR) { |
|
|
if ((err = vx_wait_for_rx_full(chip)) < 0) { |
|
|
snd_printd(KERN_DEBUG "vx_send_msg: rx_full read error\n"); |
|
|
return err; |
|
|
} |
|
|
err = vx_inb(chip, RXH) << 16; |
|
|
err |= vx_inb(chip, RXM) << 8; |
|
|
err |= vx_inb(chip, RXL); |
|
|
snd_printd(KERN_DEBUG "msg got error = 0x%x at cmd[0]\n", err); |
|
|
err = -(VX_ERR_MASK | err); |
|
|
return err; |
|
|
} |
|
|
|
|
|
/* Send the other words */ |
|
|
if (rmh->LgCmd > 1) { |
|
|
for (i = 1; i < rmh->LgCmd; i++) { |
|
|
/* Wait for TX ready */ |
|
|
if ((err = vx_wait_isr_bit(chip, ISR_TX_READY)) < 0) { |
|
|
snd_printd(KERN_DEBUG "vx_send_msg: tx_ready error\n"); |
|
|
return err; |
|
|
} |
|
|
|
|
|
/* Write Cmd[i] */ |
|
|
vx_outb(chip, TXH, (rmh->Cmd[i] >> 16) & 0xff); |
|
|
vx_outb(chip, TXM, (rmh->Cmd[i] >> 8) & 0xff); |
|
|
vx_outb(chip, TXL, rmh->Cmd[i] & 0xff); |
|
|
|
|
|
/* Trigger irq MESS_READ_NEXT */ |
|
|
if ((err = vx_send_irq_dsp(chip, IRQ_MESS_READ_NEXT)) < 0) { |
|
|
snd_printd(KERN_DEBUG "vx_send_msg: IRQ_READ_NEXT error\n"); |
|
|
return err; |
|
|
} |
|
|
} |
|
|
/* Wait for TX empty */ |
|
|
if ((err = vx_wait_isr_bit(chip, ISR_TX_READY)) < 0) { |
|
|
snd_printd(KERN_DEBUG "vx_send_msg: TX_READY error\n"); |
|
|
return err; |
|
|
} |
|
|
/* End of transfer */ |
|
|
err = vx_transfer_end(chip, IRQ_MESS_READ_END); |
|
|
if (err < 0) |
|
|
return err; |
|
|
} |
|
|
|
|
|
return vx_read_status(chip, rmh); |
|
|
} |
|
|
|
|
|
|
|
|
/* |
|
|
* vx_send_msg - send a DSP message with spinlock |
|
|
* @rmh: the rmh record to send and receive |
|
|
* |
|
|
* returns 0 if successful, or a negative error code. |
|
|
* see vx_send_msg_nolock(). |
|
|
*/ |
|
|
int vx_send_msg(vx_core_t *chip, struct vx_rmh *rmh) |
|
|
{ |
|
|
int err; |
|
|
|
|
|
spin_lock_bh(&chip->lock); |
|
|
err = vx_send_msg_nolock(chip, rmh); |
|
|
spin_unlock_bh(&chip->lock); |
|
|
return err; |
|
|
} |
|
|
|
|
|
|
|
|
/* |
|
|
* vx_send_rih_nolock - send an RIH to xilinx |
|
|
* @cmd: the command to send |
|
|
* |
|
|
* returns 0 if successful, or a negative error code. |
|
|
* the error code can be VX-specific, retrieved via vx_get_error(). |
|
|
* |
|
|
* this function doesn't call spinlock at all. |
|
|
* |
|
|
* unlike RMH, no command is sent to DSP. |
|
|
*/ |
|
|
int vx_send_rih_nolock(vx_core_t *chip, int cmd) |
|
|
{ |
|
|
int err; |
|
|
|
|
|
if (chip->chip_status & VX_STAT_IS_STALE) |
|
|
return -EBUSY; |
|
|
|
|
|
#if 0 |
|
|
printk(KERN_DEBUG "send_rih: cmd = 0x%x\n", cmd); |
|
|
#endif |
|
|
if ((err = vx_reset_chk(chip)) < 0) |
|
|
return err; |
|
|
/* send the IRQ */ |
|
|
if ((err = vx_send_irq_dsp(chip, cmd)) < 0) |
|
|
return err; |
|
|
/* Wait CHK = 1 */ |
|
|
if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0) |
|
|
return err; |
|
|
/* If error, read RX */ |
|
|
if (vx_inb(chip, ISR) & ISR_ERR) { |
|
|
if ((err = vx_wait_for_rx_full(chip)) < 0) |
|
|
return err; |
|
|
err = vx_inb(chip, RXH) << 16; |
|
|
err |= vx_inb(chip, RXM) << 8; |
|
|
err |= vx_inb(chip, RXL); |
|
|
return -(VX_ERR_MASK | err); |
|
|
} |
|
|
return 0; |
|
|
} |
|
|
|
|
|
|
|
|
/* |
|
|
* vx_send_rih - send an RIH with spinlock |
|
|
* @cmd: the command to send |
|
|
* |
|
|
* see vx_send_rih_nolock(). |
|
|
*/ |
|
|
int vx_send_rih(vx_core_t *chip, int cmd) |
|
|
{ |
|
|
int err; |
|
|
|
|
|
spin_lock_bh(&chip->lock); |
|
|
err = vx_send_rih_nolock(chip, cmd); |
|
|
spin_unlock_bh(&chip->lock); |
|
|
return err; |
|
|
} |
|
|
|
|
|
#define END_OF_RESET_WAIT_TIME 500 /* us */ |
|
|
|
|
|
/** |
|
|
* snd_vx_boot_xilinx - boot up the xilinx interface |
|
|
* @boot: the boot record to load |
|
|
*/ |
|
|
int snd_vx_load_boot_image(vx_core_t *chip, const snd_hwdep_dsp_image_t *boot) |
|
|
{ |
|
|
unsigned int i; |
|
|
int no_fillup = vx_has_new_dsp(chip); |
|
|
|
|
|
/* check the length of boot image */ |
|
|
snd_assert(boot->length > 0, return -EINVAL); |
|
|
snd_assert(boot->length % 3 == 0, return -EINVAL); |
|
|
snd_assert(boot->image, return -EINVAL); |
|
|
#if 0 |
|
|
{ |
|
|
/* more strict check */ |
|
|
unsigned int c = ((u32)boot->image[0] << 16) | ((u32)boot->image[1] << 8) | boot->image[2]; |
|
|
snd_assert(boot->length == (c + 2) * 3, return -EINVAL); |
|
|
} |
|
|
#endif |
|
|
|
|
|
/* reset dsp */ |
|
|
vx_reset_dsp(chip); |
|
|
|
|
|
udelay(END_OF_RESET_WAIT_TIME); /* another wait? */ |
|
|
|
|
|
/* download boot strap */ |
|
|
for (i = 0; i < 0x600; i += 3) { |
|
|
if (i >= boot->length) { |
|
|
if (no_fillup) |
|
|
break; |
|
|
if (vx_wait_isr_bit(chip, ISR_TX_EMPTY) < 0) { |
|
|
snd_printk(KERN_ERR "dsp boot failed at %d\n", i); |
|
|
return -EIO; |
|
|
} |
|
|
vx_outb(chip, TXH, 0); |
|
|
vx_outb(chip, TXM, 0); |
|
|
vx_outb(chip, TXL, 0); |
|
|
} else { |
|
|
unsigned char image[3]; |
|
|
if (copy_from_user(image, boot->image + i, 3)) |
|
|
return -EFAULT; |
|
|
if (vx_wait_isr_bit(chip, ISR_TX_EMPTY) < 0) { |
|
|
snd_printk(KERN_ERR "dsp boot failed at %d\n", i); |
|
|
return -EIO; |
|
|
} |
|
|
vx_outb(chip, TXH, image[0]); |
|
|
vx_outb(chip, TXM, image[1]); |
|
|
vx_outb(chip, TXL, image[2]); |
|
|
} |
|
|
} |
|
|
return 0; |
|
|
} |
|
|
|
|
|
/* |
|
|
* vx_test_irq_src - query the source of interrupts |
|
|
* |
|
|
* called from irq handler only |
|
|
*/ |
|
|
static int vx_test_irq_src(vx_core_t *chip, unsigned int *ret) |
|
|
{ |
|
|
int err; |
|
|
|
|
|
vx_init_rmh(&chip->irq_rmh, CMD_TEST_IT); |
|
|
spin_lock(&chip->lock); |
|
|
err = vx_send_msg_nolock(chip, &chip->irq_rmh); |
|
|
if (err < 0) |
|
|
*ret = 0; |
|
|
else |
|
|
*ret = chip->irq_rmh.Stat[0]; |
|
|
spin_unlock(&chip->lock); |
|
|
return err; |
|
|
} |
|
|
|
|
|
|
|
|
/* |
|
|
* vx_interrupt - soft irq handler |
|
|
*/ |
|
|
static void vx_interrupt(unsigned long private_data) |
|
|
{ |
|
|
vx_core_t *chip = snd_magic_cast(vx_core_t, (void*)private_data, return); |
|
|
unsigned int events; |
|
|
|
|
|
if (chip->chip_status & VX_STAT_IS_STALE) |
|
|
return; |
|
|
|
|
|
if (vx_test_irq_src(chip, &events) < 0) |
|
|
return; |
|
|
|
|
|
#if 0 |
|
|
if (events & 0x000800) |
|
|
printk(KERN_ERR "DSP Stream underrun ! IRQ events = 0x%x\n", events); |
|
|
#endif |
|
|
// printk(KERN_DEBUG "IRQ events = 0x%x\n", events); |
|
|
|
|
|
/* We must prevent any application using this DSP |
|
|
* and block any further request until the application |
|
|
* either unregisters or reloads the DSP |
|
|
*/ |
|
|
if (events & FATAL_DSP_ERROR) { |
|
|
snd_printk(KERN_ERR "vx_core: fatal DSP error!!\n"); |
|
|
return; |
|
|
} |
|
|
|
|
|
/* The start on time code conditions are filled (ie the time code |
|
|
* received by the board is equal to one of those given to it). |
|
|
*/ |
|
|
if (events & TIME_CODE_EVENT_PENDING) |
|
|
; /* so far, nothing to do yet */ |
|
|
|
|
|
/* The frequency has changed on the board (UER mode). */ |
|
|
if (events & FREQUENCY_CHANGE_EVENT_PENDING) |
|
|
vx_change_frequency(chip); |
|
|
|
|
|
/* update the pcm streams */ |
|
|
vx_pcm_update_intr(chip, events); |
|
|
} |
|
|
|
|
|
|
|
|
/** |
|
|
* snd_vx_irq_handler - interrupt handler |
|
|
*/ |
|
|
irqreturn_t snd_vx_irq_handler(int irq, void *dev, struct pt_regs *regs) |
|
|
{ |
|
|
vx_core_t *chip = snd_magic_cast(vx_core_t, dev, return IRQ_NONE); |
|
|
|
|
|
if (! (chip->chip_status & VX_STAT_CHIP_INIT) || |
|
|
(chip->chip_status & VX_STAT_IS_STALE)) |
|
|
return IRQ_NONE; |
|
|
if (! vx_test_and_ack(chip)) |
|
|
tasklet_hi_schedule(&chip->tq); |
|
|
return IRQ_HANDLED; |
|
|
} |
|
|
|
|
|
|
|
|
/* |
|
|
*/ |
|
|
static void vx_reset_board(vx_core_t *chip, int cold_reset) |
|
|
{ |
|
|
snd_assert(chip->ops->reset_board, return); |
|
|
|
|
|
/* current source, later sync'ed with target */ |
|
|
chip->audio_source = VX_AUDIO_SRC_LINE; |
|
|
if (cold_reset) { |
|
|
chip->audio_source_target = chip->audio_source; |
|
|
chip->clock_source = INTERNAL_QUARTZ; |
|
|
chip->freq = 48000; |
|
|
chip->uer_detected = VX_UER_MODE_NOT_PRESENT; |
|
|
chip->uer_bits = SNDRV_PCM_DEFAULT_CON_SPDIF; |
|
|
} |
|
|
|
|
|
chip->ops->reset_board(chip, cold_reset); |
|
|
|
|
|
vx_reset_codec(chip, cold_reset); |
|
|
|
|
|
vx_set_internal_clock(chip, chip->freq); |
|
|
|
|
|
/* Reset the DSP */ |
|
|
vx_reset_dsp(chip); |
|
|
|
|
|
if (vx_is_pcmcia(chip)) { |
|
|
/* Acknowledge any pending IRQ and reset the MEMIRQ flag. */ |
|
|
vx_test_and_ack(chip); |
|
|
vx_validate_irq(chip, 1); |
|
|
} |
|
|
|
|
|
/* init CBits */ |
|
|
vx_set_iec958_status(chip, chip->uer_bits); |
|
|
} |
|
|
|
|
|
|
|
|
/* |
|
|
* proc interface |
|
|
*/ |
|
|
|
|
|
static void vx_proc_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer) |
|
|
{ |
|
|
vx_core_t *chip = snd_magic_cast(vx_core_t, entry->private_data, return); |
|
|
static char *audio_src_vxp[] = { "Line", "Mic", "Digital" }; |
|
|
static char *audio_src_vx2[] = { "Analog", "Analog", "Digital" }; |
|
|
static char *clock_src[] = { "Internal", "External" }; |
|
|
static char *uer_type[] = { "Consumer", "Professional", "Not Present" }; |
|
|
|
|
|
snd_iprintf(buffer, "%s\n", chip->card->longname); |
|
|
snd_iprintf(buffer, "DSP audio info:"); |
|
|
if (chip->audio_info & VX_AUDIO_INFO_REAL_TIME) |
|
|
snd_iprintf(buffer, " realtime"); |
|
|
if (chip->audio_info & VX_AUDIO_INFO_OFFLINE) |
|
|
snd_iprintf(buffer, " offline"); |
|
|
if (chip->audio_info & VX_AUDIO_INFO_MPEG1) |
|
|
snd_iprintf(buffer, " mpeg1"); |
|
|
if (chip->audio_info & VX_AUDIO_INFO_MPEG2) |
|
|
snd_iprintf(buffer, " mpeg2"); |
|
|
if (chip->audio_info & VX_AUDIO_INFO_LINEAR_8) |
|
|
snd_iprintf(buffer, " linear8"); |
|
|
if (chip->audio_info & VX_AUDIO_INFO_LINEAR_16) |
|
|
snd_iprintf(buffer, " linear16"); |
|
|
if (chip->audio_info & VX_AUDIO_INFO_LINEAR_24) |
|
|
snd_iprintf(buffer, " linear24"); |
|
|
snd_iprintf(buffer, "\n"); |
|
|
snd_iprintf(buffer, "Input Source: %s\n", vx_is_pcmcia(chip) ? |
|
|
audio_src_vxp[chip->audio_source] : |
|
|
audio_src_vx2[chip->audio_source]); |
|
|
snd_iprintf(buffer, "Clock Source: %s\n", clock_src[chip->clock_source]); |
|
|
snd_iprintf(buffer, "Frequency: %d\n", chip->freq); |
|
|
snd_iprintf(buffer, "Detected Frequency: %d\n", chip->freq_detected); |
|
|
snd_iprintf(buffer, "Detected UER type: %s\n", uer_type[chip->uer_detected]); |
|
|
} |
|
|
|
|
|
static void vx_proc_init(vx_core_t *chip) |
|
|
{ |
|
|
snd_info_entry_t *entry; |
|
|
|
|
|
if (! snd_card_proc_new(chip->card, "vx-status", &entry)) |
|
|
snd_info_set_text_ops(entry, chip, vx_proc_read); |
|
|
} |
|
|
|
|
|
|
|
|
/** |
|
|
* snd_vx_dsp_boot - load the DSP boot |
|
|
*/ |
|
|
int snd_vx_dsp_boot(vx_core_t *chip, const snd_hwdep_dsp_image_t *boot) |
|
|
{ |
|
|
int err; |
|
|
int cold_reset = !(chip->chip_status & VX_STAT_DEVICE_INIT); |
|
|
|
|
|
vx_reset_board(chip, cold_reset); |
|
|
vx_validate_irq(chip, 0); |
|
|
|
|
|
if ((err = snd_vx_load_boot_image(chip, boot)) < 0) |
|
|
return err; |
|
|
snd_vx_delay(chip, 10); |
|
|
|
|
|
return 0; |
|
|
} |
|
|
|
|
|
/** |
|
|
* snd_vx_dsp_load - load the DSP image |
|
|
*/ |
|
|
int snd_vx_dsp_load(vx_core_t *chip, const snd_hwdep_dsp_image_t *dsp) |
|
|
{ |
|
|
unsigned int i; |
|
|
int err; |
|
|
unsigned int csum = 0; |
|
|
unsigned char image[3], *cptr; |
|
|
|
|
|
snd_assert(dsp->length % 3 == 0, return -EINVAL); |
|
|
|
|
|
vx_toggle_dac_mute(chip, 1); |
|
|
|
|
|
/* Transfert data buffer from PC to DSP */ |
|
|
for (i = 0; i < dsp->length; i += 3) { |
|
|
if (copy_from_user(image, dsp->image + i, 3)) |
|
|
return -EFAULT; |
|
|
/* Wait DSP ready for a new read */ |
|
|
if ((err = vx_wait_isr_bit(chip, ISR_TX_EMPTY)) < 0) { |
|
|
printk("dsp loading error at position %d\n", i); |
|
|
return err; |
|
|
} |
|
|
cptr = image; |
|
|
csum ^= *cptr; |
|
|
csum = (csum >> 24) | (csum << 8); |
|
|
vx_outb(chip, TXH, *cptr++); |
|
|
csum ^= *cptr; |
|
|
csum = (csum >> 24) | (csum << 8); |
|
|
vx_outb(chip, TXM, *cptr++); |
|
|
csum ^= *cptr; |
|
|
csum = (csum >> 24) | (csum << 8); |
|
|
vx_outb(chip, TXL, *cptr++); |
|
|
} |
|
|
snd_printdd(KERN_DEBUG "checksum = 0x%08x\n", csum); |
|
|
|
|
|
snd_vx_delay(chip, 200); |
|
|
|
|
|
if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0) |
|
|
return err; |
|
|
|
|
|
vx_toggle_dac_mute(chip, 0); |
|
|
|
|
|
vx_test_and_ack(chip); |
|
|
vx_validate_irq(chip, 1); |
|
|
|
|
|
return 0; |
|
|
} |
|
|
|
|
|
/** |
|
|
* snd_vx_create - constructor for vx_core_t |
|
|
* @hw: hardware specific record |
|
|
* |
|
|
* this function allocates the instance and prepare for the hardware |
|
|
* initialization. |
|
|
* |
|
|
* return the instance pointer if successful, NULL in error. |
|
|
*/ |
|
|
vx_core_t *snd_vx_create(snd_card_t *card, struct snd_vx_hardware *hw, |
|
|
struct snd_vx_ops *ops, |
|
|
int extra_size) |
|
|
{ |
|
|
vx_core_t *chip; |
|
|
|
|
|
snd_assert(card && hw && ops, return NULL); |
|
|
|
|
|
chip = snd_magic_kcalloc(vx_core_t, extra_size, GFP_KERNEL); |
|
|
if (! chip) { |
|
|
snd_printk(KERN_ERR "vx_core: no memory\n"); |
|
|
return NULL; |
|
|
} |
|
|
spin_lock_init(&chip->lock); |
|
|
spin_lock_init(&chip->irq_lock); |
|
|
chip->irq = -1; |
|
|
chip->hw = hw; |
|
|
chip->type = hw->type; |
|
|
chip->ops = ops; |
|
|
tasklet_init(&chip->tq, vx_interrupt, (unsigned long)chip); |
|
|
init_MUTEX(&chip->mixer_mutex); |
|
|
|
|
|
chip->card = card; |
|
|
card->private_data = chip; |
|
|
strcpy(card->driver, hw->name); |
|
|
sprintf(card->shortname, "Digigram %s", hw->name); |
|
|
|
|
|
vx_proc_init(chip); |
|
|
|
|
|
return chip; |
|
|
} |
|
|
|
|
|
#ifdef CONFIG_PM |
|
|
/* |
|
|
* suspend |
|
|
*/ |
|
|
void snd_vx_suspend(vx_core_t *chip) |
|
|
{ |
|
|
unsigned int i; |
|
|
|
|
|
chip->chip_status |= VX_STAT_IN_SUSPEND; |
|
|
for (i = 0; i < chip->hw->num_codecs; i++) |
|
|
snd_pcm_suspend_all(chip->pcm[i]); |
|
|
if (chip->hwdep) |
|
|
chip->hwdep->dsp_loaded = 0; |
|
|
} |
|
|
|
|
|
/* |
|
|
* resume |
|
|
*/ |
|
|
void snd_vx_resume(vx_core_t *chip) |
|
|
{ |
|
|
/* clear all stuff... */ |
|
|
chip->chip_status &= ~(VX_STAT_IN_SUSPEND|VX_STAT_CHIP_INIT); |
|
|
} |
|
|
|
|
|
#endif |
|
|
|
|
|
/* |
|
|
* module entries |
|
|
*/ |
|
|
static int __init alsa_vx_core_init(void) |
|
|
{ |
|
|
return 0; |
|
|
} |
|
|
|
|
|
static void __exit alsa_vx_core_exit(void) |
|
|
{ |
|
|
} |
|
|
|
|
|
module_init(alsa_vx_core_init) |
|
|
module_exit(alsa_vx_core_exit) |
|
|
|
|
|
/* |
|
|
* exports |
|
|
*/ |
|
|
EXPORT_SYMBOL(snd_vx_check_reg_bit); |
|
|
EXPORT_SYMBOL(snd_vx_create); |
|
|
EXPORT_SYMBOL(snd_vx_hwdep_new); |
|
|
EXPORT_SYMBOL(snd_vx_irq_handler); |
|
|
EXPORT_SYMBOL(snd_vx_delay); |
|
|
EXPORT_SYMBOL(snd_vx_dsp_boot); |
|
|
EXPORT_SYMBOL(snd_vx_dsp_load); |
|
|
EXPORT_SYMBOL(snd_vx_load_boot_image); |
|
|
#ifdef CONFIG_PM |
|
|
EXPORT_SYMBOL(snd_vx_suspend); |
|
|
EXPORT_SYMBOL(snd_vx_resume); |
|
|
#endif |
|