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https://github.com/edk2-porting/linux-next.git
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815d808c7b
Simplify the proc fs creation code with new helper functions, snd_card_ro_proc_new() and snd_card_rw_proc_new(). Just a code refactoring and no functional changes. Reviewed-by: Jaroslav Kysela <perex@perex.cz> Signed-off-by: Takashi Iwai <tiwai@suse.de>
811 lines
20 KiB
C
811 lines
20 KiB
C
/*
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* Driver for Digigram VX soundcards
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*
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* Hardware core part
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*
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* Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/device.h>
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#include <linux/firmware.h>
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#include <linux/module.h>
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#include <linux/io.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/asoundef.h>
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#include <sound/info.h>
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#include <sound/vx_core.h>
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#include "vx_cmd.h"
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MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
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MODULE_DESCRIPTION("Common routines for Digigram VX drivers");
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MODULE_LICENSE("GPL");
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/*
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* vx_check_reg_bit - wait for the specified bit is set/reset on a register
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* @reg: register to check
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* @mask: bit mask
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* @bit: resultant bit to be checked
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* @time: time-out of loop in msec
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*
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* returns zero if a bit matches, or a negative error code.
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*/
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int snd_vx_check_reg_bit(struct vx_core *chip, int reg, int mask, int bit, int time)
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{
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unsigned long end_time = jiffies + (time * HZ + 999) / 1000;
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static char *reg_names[VX_REG_MAX] = {
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"ICR", "CVR", "ISR", "IVR", "RXH", "RXM", "RXL",
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"DMA", "CDSP", "RFREQ", "RUER/V2", "DATA", "MEMIRQ",
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"ACQ", "BIT0", "BIT1", "MIC0", "MIC1", "MIC2",
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"MIC3", "INTCSR", "CNTRL", "GPIOC",
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"LOFREQ", "HIFREQ", "CSUER", "RUER"
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};
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do {
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if ((snd_vx_inb(chip, reg) & mask) == bit)
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return 0;
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//msleep(10);
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} while (time_after_eq(end_time, jiffies));
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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));
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return -EIO;
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}
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EXPORT_SYMBOL(snd_vx_check_reg_bit);
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/*
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* vx_send_irq_dsp - set command irq bit
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* @num: the requested IRQ type, IRQ_XXX
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*
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* this triggers the specified IRQ request
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* returns 0 if successful, or a negative error code.
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*
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*/
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static int vx_send_irq_dsp(struct vx_core *chip, int num)
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{
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int nirq;
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/* wait for Hc = 0 */
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if (snd_vx_check_reg_bit(chip, VX_CVR, CVR_HC, 0, 200) < 0)
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return -EIO;
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nirq = num;
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if (vx_has_new_dsp(chip))
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nirq += VXP_IRQ_OFFSET;
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vx_outb(chip, CVR, (nirq >> 1) | CVR_HC);
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return 0;
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}
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/*
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* vx_reset_chk - reset CHK bit on ISR
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*
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* returns 0 if successful, or a negative error code.
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*/
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static int vx_reset_chk(struct vx_core *chip)
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{
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/* Reset irq CHK */
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if (vx_send_irq_dsp(chip, IRQ_RESET_CHK) < 0)
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return -EIO;
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/* Wait until CHK = 0 */
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if (vx_check_isr(chip, ISR_CHK, 0, 200) < 0)
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return -EIO;
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return 0;
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}
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/*
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* vx_transfer_end - terminate message transfer
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* @cmd: IRQ message to send (IRQ_MESS_XXX_END)
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*
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* returns 0 if successful, or a negative error code.
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* the error code can be VX-specific, retrieved via vx_get_error().
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* NB: call with mutex held!
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*/
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static int vx_transfer_end(struct vx_core *chip, int cmd)
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{
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int err;
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if ((err = vx_reset_chk(chip)) < 0)
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return err;
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/* irq MESS_READ/WRITE_END */
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if ((err = vx_send_irq_dsp(chip, cmd)) < 0)
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return err;
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/* Wait CHK = 1 */
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if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0)
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return err;
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/* If error, Read RX */
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if ((err = vx_inb(chip, ISR)) & ISR_ERR) {
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if ((err = vx_wait_for_rx_full(chip)) < 0) {
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snd_printd(KERN_DEBUG "transfer_end: error in rx_full\n");
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return err;
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}
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err = vx_inb(chip, RXH) << 16;
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err |= vx_inb(chip, RXM) << 8;
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err |= vx_inb(chip, RXL);
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snd_printd(KERN_DEBUG "transfer_end: error = 0x%x\n", err);
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return -(VX_ERR_MASK | err);
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}
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return 0;
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}
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/*
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* vx_read_status - return the status rmh
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* @rmh: rmh record to store the status
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*
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* returns 0 if successful, or a negative error code.
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* the error code can be VX-specific, retrieved via vx_get_error().
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* NB: call with mutex held!
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*/
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static int vx_read_status(struct vx_core *chip, struct vx_rmh *rmh)
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{
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int i, err, val, size;
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/* no read necessary? */
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if (rmh->DspStat == RMH_SSIZE_FIXED && rmh->LgStat == 0)
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return 0;
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/* Wait for RX full (with timeout protection)
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* The first word of status is in RX
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*/
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err = vx_wait_for_rx_full(chip);
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if (err < 0)
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return err;
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/* Read RX */
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val = vx_inb(chip, RXH) << 16;
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val |= vx_inb(chip, RXM) << 8;
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val |= vx_inb(chip, RXL);
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/* If status given by DSP, let's decode its size */
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switch (rmh->DspStat) {
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case RMH_SSIZE_ARG:
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size = val & 0xff;
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rmh->Stat[0] = val & 0xffff00;
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rmh->LgStat = size + 1;
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break;
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case RMH_SSIZE_MASK:
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/* Let's count the arg numbers from a mask */
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rmh->Stat[0] = val;
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size = 0;
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while (val) {
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if (val & 0x01)
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size++;
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val >>= 1;
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}
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rmh->LgStat = size + 1;
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break;
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default:
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/* else retrieve the status length given by the driver */
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size = rmh->LgStat;
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rmh->Stat[0] = val; /* Val is the status 1st word */
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size--; /* hence adjust remaining length */
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break;
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}
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if (size < 1)
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return 0;
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if (snd_BUG_ON(size >= SIZE_MAX_STATUS))
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return -EINVAL;
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for (i = 1; i <= size; i++) {
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/* trigger an irq MESS_WRITE_NEXT */
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err = vx_send_irq_dsp(chip, IRQ_MESS_WRITE_NEXT);
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if (err < 0)
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return err;
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/* Wait for RX full (with timeout protection) */
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err = vx_wait_for_rx_full(chip);
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if (err < 0)
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return err;
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rmh->Stat[i] = vx_inb(chip, RXH) << 16;
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rmh->Stat[i] |= vx_inb(chip, RXM) << 8;
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rmh->Stat[i] |= vx_inb(chip, RXL);
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}
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return vx_transfer_end(chip, IRQ_MESS_WRITE_END);
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}
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#define MASK_MORE_THAN_1_WORD_COMMAND 0x00008000
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#define MASK_1_WORD_COMMAND 0x00ff7fff
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/*
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* vx_send_msg_nolock - send a DSP message and read back the status
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* @rmh: the rmh record to send and receive
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*
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* returns 0 if successful, or a negative error code.
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* the error code can be VX-specific, retrieved via vx_get_error().
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*
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* this function doesn't call mutex lock at all.
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*/
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int vx_send_msg_nolock(struct vx_core *chip, struct vx_rmh *rmh)
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{
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int i, err;
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if (chip->chip_status & VX_STAT_IS_STALE)
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return -EBUSY;
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if ((err = vx_reset_chk(chip)) < 0) {
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snd_printd(KERN_DEBUG "vx_send_msg: vx_reset_chk error\n");
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return err;
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}
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#if 0
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printk(KERN_DEBUG "rmh: cmd = 0x%06x, length = %d, stype = %d\n",
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rmh->Cmd[0], rmh->LgCmd, rmh->DspStat);
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if (rmh->LgCmd > 1) {
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printk(KERN_DEBUG " ");
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for (i = 1; i < rmh->LgCmd; i++)
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printk(KERN_CONT "0x%06x ", rmh->Cmd[i]);
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printk(KERN_CONT "\n");
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}
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#endif
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/* Check bit M is set according to length of the command */
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if (rmh->LgCmd > 1)
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rmh->Cmd[0] |= MASK_MORE_THAN_1_WORD_COMMAND;
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else
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rmh->Cmd[0] &= MASK_1_WORD_COMMAND;
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/* Wait for TX empty */
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if ((err = vx_wait_isr_bit(chip, ISR_TX_EMPTY)) < 0) {
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snd_printd(KERN_DEBUG "vx_send_msg: wait tx empty error\n");
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return err;
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}
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/* Write Cmd[0] */
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vx_outb(chip, TXH, (rmh->Cmd[0] >> 16) & 0xff);
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vx_outb(chip, TXM, (rmh->Cmd[0] >> 8) & 0xff);
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vx_outb(chip, TXL, rmh->Cmd[0] & 0xff);
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/* Trigger irq MESSAGE */
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if ((err = vx_send_irq_dsp(chip, IRQ_MESSAGE)) < 0) {
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snd_printd(KERN_DEBUG "vx_send_msg: send IRQ_MESSAGE error\n");
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return err;
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}
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/* Wait for CHK = 1 */
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if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0)
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return err;
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/* If error, get error value from RX */
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if (vx_inb(chip, ISR) & ISR_ERR) {
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if ((err = vx_wait_for_rx_full(chip)) < 0) {
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snd_printd(KERN_DEBUG "vx_send_msg: rx_full read error\n");
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return err;
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}
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err = vx_inb(chip, RXH) << 16;
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err |= vx_inb(chip, RXM) << 8;
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err |= vx_inb(chip, RXL);
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snd_printd(KERN_DEBUG "msg got error = 0x%x at cmd[0]\n", err);
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err = -(VX_ERR_MASK | err);
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return err;
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}
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/* Send the other words */
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if (rmh->LgCmd > 1) {
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for (i = 1; i < rmh->LgCmd; i++) {
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/* Wait for TX ready */
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if ((err = vx_wait_isr_bit(chip, ISR_TX_READY)) < 0) {
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snd_printd(KERN_DEBUG "vx_send_msg: tx_ready error\n");
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return err;
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}
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/* Write Cmd[i] */
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vx_outb(chip, TXH, (rmh->Cmd[i] >> 16) & 0xff);
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vx_outb(chip, TXM, (rmh->Cmd[i] >> 8) & 0xff);
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vx_outb(chip, TXL, rmh->Cmd[i] & 0xff);
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/* Trigger irq MESS_READ_NEXT */
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if ((err = vx_send_irq_dsp(chip, IRQ_MESS_READ_NEXT)) < 0) {
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snd_printd(KERN_DEBUG "vx_send_msg: IRQ_READ_NEXT error\n");
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return err;
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}
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}
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/* Wait for TX empty */
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if ((err = vx_wait_isr_bit(chip, ISR_TX_READY)) < 0) {
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snd_printd(KERN_DEBUG "vx_send_msg: TX_READY error\n");
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return err;
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}
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/* End of transfer */
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err = vx_transfer_end(chip, IRQ_MESS_READ_END);
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if (err < 0)
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return err;
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}
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return vx_read_status(chip, rmh);
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}
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/*
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* vx_send_msg - send a DSP message with mutex
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* @rmh: the rmh record to send and receive
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*
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* returns 0 if successful, or a negative error code.
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* see vx_send_msg_nolock().
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*/
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int vx_send_msg(struct vx_core *chip, struct vx_rmh *rmh)
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{
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int err;
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mutex_lock(&chip->lock);
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err = vx_send_msg_nolock(chip, rmh);
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mutex_unlock(&chip->lock);
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return err;
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}
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/*
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* vx_send_rih_nolock - send an RIH to xilinx
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* @cmd: the command to send
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*
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* returns 0 if successful, or a negative error code.
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* the error code can be VX-specific, retrieved via vx_get_error().
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*
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* this function doesn't call mutex at all.
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*
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* unlike RMH, no command is sent to DSP.
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*/
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int vx_send_rih_nolock(struct vx_core *chip, int cmd)
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{
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int err;
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if (chip->chip_status & VX_STAT_IS_STALE)
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return -EBUSY;
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#if 0
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printk(KERN_DEBUG "send_rih: cmd = 0x%x\n", cmd);
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#endif
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if ((err = vx_reset_chk(chip)) < 0)
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return err;
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/* send the IRQ */
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if ((err = vx_send_irq_dsp(chip, cmd)) < 0)
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return err;
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/* Wait CHK = 1 */
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if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0)
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return err;
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/* If error, read RX */
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if (vx_inb(chip, ISR) & ISR_ERR) {
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if ((err = vx_wait_for_rx_full(chip)) < 0)
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return err;
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err = vx_inb(chip, RXH) << 16;
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err |= vx_inb(chip, RXM) << 8;
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err |= vx_inb(chip, RXL);
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return -(VX_ERR_MASK | err);
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}
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return 0;
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}
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/*
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* vx_send_rih - send an RIH with mutex
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* @cmd: the command to send
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*
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* see vx_send_rih_nolock().
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*/
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int vx_send_rih(struct vx_core *chip, int cmd)
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{
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int err;
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mutex_lock(&chip->lock);
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err = vx_send_rih_nolock(chip, cmd);
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mutex_unlock(&chip->lock);
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return err;
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}
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#define END_OF_RESET_WAIT_TIME 500 /* us */
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/**
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* snd_vx_boot_xilinx - boot up the xilinx interface
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* @chip: VX core instance
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* @boot: the boot record to load
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*/
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int snd_vx_load_boot_image(struct vx_core *chip, const struct firmware *boot)
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{
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unsigned int i;
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int no_fillup = vx_has_new_dsp(chip);
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/* check the length of boot image */
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if (boot->size <= 0)
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return -EINVAL;
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if (boot->size % 3)
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return -EINVAL;
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#if 0
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{
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/* more strict check */
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unsigned int c = ((u32)boot->data[0] << 16) | ((u32)boot->data[1] << 8) | boot->data[2];
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if (boot->size != (c + 2) * 3)
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return -EINVAL;
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}
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#endif
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/* reset dsp */
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vx_reset_dsp(chip);
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udelay(END_OF_RESET_WAIT_TIME); /* another wait? */
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/* download boot strap */
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for (i = 0; i < 0x600; i += 3) {
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if (i >= boot->size) {
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if (no_fillup)
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break;
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if (vx_wait_isr_bit(chip, ISR_TX_EMPTY) < 0) {
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snd_printk(KERN_ERR "dsp boot failed at %d\n", i);
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return -EIO;
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}
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vx_outb(chip, TXH, 0);
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vx_outb(chip, TXM, 0);
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vx_outb(chip, TXL, 0);
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} else {
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const unsigned char *image = boot->data + i;
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if (vx_wait_isr_bit(chip, ISR_TX_EMPTY) < 0) {
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snd_printk(KERN_ERR "dsp boot failed at %d\n", i);
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return -EIO;
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}
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vx_outb(chip, TXH, image[0]);
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vx_outb(chip, TXM, image[1]);
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vx_outb(chip, TXL, image[2]);
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}
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}
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return 0;
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}
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EXPORT_SYMBOL(snd_vx_load_boot_image);
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/*
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* vx_test_irq_src - query the source of interrupts
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*
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* called from irq handler only
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*/
|
|
static int vx_test_irq_src(struct vx_core *chip, unsigned int *ret)
|
|
{
|
|
int err;
|
|
|
|
vx_init_rmh(&chip->irq_rmh, CMD_TEST_IT);
|
|
mutex_lock(&chip->lock);
|
|
err = vx_send_msg_nolock(chip, &chip->irq_rmh);
|
|
if (err < 0)
|
|
*ret = 0;
|
|
else
|
|
*ret = chip->irq_rmh.Stat[0];
|
|
mutex_unlock(&chip->lock);
|
|
return err;
|
|
}
|
|
|
|
|
|
/*
|
|
* snd_vx_threaded_irq_handler - threaded irq handler
|
|
*/
|
|
irqreturn_t snd_vx_threaded_irq_handler(int irq, void *dev)
|
|
{
|
|
struct vx_core *chip = dev;
|
|
unsigned int events;
|
|
|
|
if (chip->chip_status & VX_STAT_IS_STALE)
|
|
return IRQ_HANDLED;
|
|
|
|
if (vx_test_irq_src(chip, &events) < 0)
|
|
return IRQ_HANDLED;
|
|
|
|
#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 IRQ_HANDLED;
|
|
}
|
|
|
|
/* 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);
|
|
return IRQ_HANDLED;
|
|
}
|
|
EXPORT_SYMBOL(snd_vx_threaded_irq_handler);
|
|
|
|
/**
|
|
* snd_vx_irq_handler - interrupt handler
|
|
* @irq: irq number
|
|
* @dev: VX core instance
|
|
*/
|
|
irqreturn_t snd_vx_irq_handler(int irq, void *dev)
|
|
{
|
|
struct vx_core *chip = dev;
|
|
|
|
if (! (chip->chip_status & VX_STAT_CHIP_INIT) ||
|
|
(chip->chip_status & VX_STAT_IS_STALE))
|
|
return IRQ_NONE;
|
|
if (! vx_test_and_ack(chip))
|
|
return IRQ_WAKE_THREAD;
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
EXPORT_SYMBOL(snd_vx_irq_handler);
|
|
|
|
/*
|
|
*/
|
|
static void vx_reset_board(struct vx_core *chip, int cold_reset)
|
|
{
|
|
if (snd_BUG_ON(!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->clock_mode = VX_CLOCK_MODE_AUTO;
|
|
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(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
|
|
{
|
|
struct vx_core *chip = entry->private_data;
|
|
static char *audio_src_vxp[] = { "Line", "Mic", "Digital" };
|
|
static char *audio_src_vx2[] = { "Analog", "Analog", "Digital" };
|
|
static char *clock_mode[] = { "Auto", "Internal", "External" };
|
|
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, "Xilinx Firmware: %s\n",
|
|
chip->chip_status & VX_STAT_XILINX_LOADED ? "Loaded" : "No");
|
|
snd_iprintf(buffer, "Device Initialized: %s\n",
|
|
chip->chip_status & VX_STAT_DEVICE_INIT ? "Yes" : "No");
|
|
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 Mode: %s\n", clock_mode[chip->clock_mode]);
|
|
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]);
|
|
snd_iprintf(buffer, "Min/Max/Cur IBL: %d/%d/%d (granularity=%d)\n",
|
|
chip->ibl.min_size, chip->ibl.max_size, chip->ibl.size,
|
|
chip->ibl.granularity);
|
|
}
|
|
|
|
static void vx_proc_init(struct vx_core *chip)
|
|
{
|
|
snd_card_ro_proc_new(chip->card, "vx-status", chip, vx_proc_read);
|
|
}
|
|
|
|
|
|
/**
|
|
* snd_vx_dsp_boot - load the DSP boot
|
|
* @chip: VX core instance
|
|
* @boot: firmware data
|
|
*/
|
|
int snd_vx_dsp_boot(struct vx_core *chip, const struct firmware *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;
|
|
msleep(10);
|
|
|
|
return 0;
|
|
}
|
|
|
|
EXPORT_SYMBOL(snd_vx_dsp_boot);
|
|
|
|
/**
|
|
* snd_vx_dsp_load - load the DSP image
|
|
* @chip: VX core instance
|
|
* @dsp: firmware data
|
|
*/
|
|
int snd_vx_dsp_load(struct vx_core *chip, const struct firmware *dsp)
|
|
{
|
|
unsigned int i;
|
|
int err;
|
|
unsigned int csum = 0;
|
|
const unsigned char *image, *cptr;
|
|
|
|
if (dsp->size % 3)
|
|
return -EINVAL;
|
|
|
|
vx_toggle_dac_mute(chip, 1);
|
|
|
|
/* Transfert data buffer from PC to DSP */
|
|
for (i = 0; i < dsp->size; i += 3) {
|
|
image = dsp->data + i;
|
|
/* Wait DSP ready for a new read */
|
|
if ((err = vx_wait_isr_bit(chip, ISR_TX_EMPTY)) < 0) {
|
|
printk(KERN_ERR
|
|
"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);
|
|
|
|
msleep(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;
|
|
}
|
|
|
|
EXPORT_SYMBOL(snd_vx_dsp_load);
|
|
|
|
#ifdef CONFIG_PM
|
|
/*
|
|
* suspend
|
|
*/
|
|
int snd_vx_suspend(struct vx_core *chip)
|
|
{
|
|
snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
|
|
chip->chip_status |= VX_STAT_IN_SUSPEND;
|
|
|
|
return 0;
|
|
}
|
|
|
|
EXPORT_SYMBOL(snd_vx_suspend);
|
|
|
|
/*
|
|
* resume
|
|
*/
|
|
int snd_vx_resume(struct vx_core *chip)
|
|
{
|
|
int i, err;
|
|
|
|
chip->chip_status &= ~VX_STAT_CHIP_INIT;
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
if (! chip->firmware[i])
|
|
continue;
|
|
err = chip->ops->load_dsp(chip, i, chip->firmware[i]);
|
|
if (err < 0) {
|
|
snd_printk(KERN_ERR "vx: firmware resume error at DSP %d\n", i);
|
|
return -EIO;
|
|
}
|
|
}
|
|
|
|
chip->chip_status |= VX_STAT_CHIP_INIT;
|
|
chip->chip_status &= ~VX_STAT_IN_SUSPEND;
|
|
|
|
snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
|
|
return 0;
|
|
}
|
|
|
|
EXPORT_SYMBOL(snd_vx_resume);
|
|
#endif
|
|
|
|
/**
|
|
* snd_vx_create - constructor for struct vx_core
|
|
* @card: card instance
|
|
* @hw: hardware specific record
|
|
* @ops: VX ops pointer
|
|
* @extra_size: extra byte size to allocate appending to chip
|
|
*
|
|
* this function allocates the instance and prepare for the hardware
|
|
* initialization.
|
|
*
|
|
* return the instance pointer if successful, NULL in error.
|
|
*/
|
|
struct vx_core *snd_vx_create(struct snd_card *card, struct snd_vx_hardware *hw,
|
|
struct snd_vx_ops *ops,
|
|
int extra_size)
|
|
{
|
|
struct vx_core *chip;
|
|
|
|
if (snd_BUG_ON(!card || !hw || !ops))
|
|
return NULL;
|
|
|
|
chip = kzalloc(sizeof(*chip) + extra_size, GFP_KERNEL);
|
|
if (! chip)
|
|
return NULL;
|
|
mutex_init(&chip->lock);
|
|
chip->irq = -1;
|
|
chip->hw = hw;
|
|
chip->type = hw->type;
|
|
chip->ops = ops;
|
|
mutex_init(&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;
|
|
}
|
|
|
|
EXPORT_SYMBOL(snd_vx_create);
|