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827 lines
20 KiB
827 lines
20 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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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 <[email protected]> |
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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 <[email protected]>"); |
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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 const char * const 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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err = vx_reset_chk(chip); |
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if (err < 0) |
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return err; |
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/* irq MESS_READ/WRITE_END */ |
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err = vx_send_irq_dsp(chip, cmd); |
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if (err < 0) |
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return err; |
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/* Wait CHK = 1 */ |
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err = vx_wait_isr_bit(chip, ISR_CHK); |
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if (err < 0) |
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return err; |
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/* If error, Read RX */ |
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err = vx_inb(chip, ISR); |
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if (err & ISR_ERR) { |
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err = vx_wait_for_rx_full(chip); |
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if (err < 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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err = vx_reset_chk(chip); |
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if (err < 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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err = vx_wait_isr_bit(chip, ISR_TX_EMPTY); |
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if (err < 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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err = vx_send_irq_dsp(chip, IRQ_MESSAGE); |
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if (err < 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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err = vx_wait_isr_bit(chip, ISR_CHK); |
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if (err < 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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err = vx_wait_for_rx_full(chip); |
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if (err < 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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err = vx_wait_isr_bit(chip, ISR_TX_READY); |
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if (err < 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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err = vx_send_irq_dsp(chip, IRQ_MESS_READ_NEXT); |
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if (err < 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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err = vx_wait_isr_bit(chip, ISR_TX_READY); |
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if (err < 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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err = vx_reset_chk(chip); |
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if (err < 0) |
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return err; |
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/* send the IRQ */ |
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err = vx_send_irq_dsp(chip, cmd); |
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if (err < 0) |
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return err; |
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/* Wait CHK = 1 */ |
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err = vx_wait_isr_bit(chip, ISR_CHK); |
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if (err < 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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err = vx_wait_for_rx_full(chip); |
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if (err < 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_load_boot_image - 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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/* |
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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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*/ |
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static int vx_test_irq_src(struct vx_core *chip, unsigned int *ret) |
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{ |
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int err; |
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|
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vx_init_rmh(&chip->irq_rmh, CMD_TEST_IT); |
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mutex_lock(&chip->lock); |
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err = vx_send_msg_nolock(chip, &chip->irq_rmh); |
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if (err < 0) |
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*ret = 0; |
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else |
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*ret = chip->irq_rmh.Stat[0]; |
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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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/* |
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* snd_vx_threaded_irq_handler - threaded irq handler |
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*/ |
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irqreturn_t snd_vx_threaded_irq_handler(int irq, void *dev) |
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{ |
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struct vx_core *chip = dev; |
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unsigned int events; |
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|
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if (chip->chip_status & VX_STAT_IS_STALE) |
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return IRQ_HANDLED; |
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if (vx_test_irq_src(chip, &events) < 0) |
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return IRQ_HANDLED; |
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#if 0 |
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if (events & 0x000800) |
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printk(KERN_ERR "DSP Stream underrun ! IRQ events = 0x%x\n", events); |
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#endif |
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// printk(KERN_DEBUG "IRQ events = 0x%x\n", events); |
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|
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/* We must prevent any application using this DSP |
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* and block any further request until the application |
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* either unregisters or reloads the DSP |
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*/ |
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if (events & FATAL_DSP_ERROR) { |
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snd_printk(KERN_ERR "vx_core: fatal DSP error!!\n"); |
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return IRQ_HANDLED; |
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} |
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|
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/* The start on time code conditions are filled (ie the time code |
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* received by the board is equal to one of those given to it). |
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*/ |
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if (events & TIME_CODE_EVENT_PENDING) { |
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; /* so far, nothing to do yet */ |
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} |
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|
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/* The frequency has changed on the board (UER mode). */ |
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if (events & FREQUENCY_CHANGE_EVENT_PENDING) |
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vx_change_frequency(chip); |
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|
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/* update the pcm streams */ |
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vx_pcm_update_intr(chip, events); |
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return IRQ_HANDLED; |
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} |
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EXPORT_SYMBOL(snd_vx_threaded_irq_handler); |
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|
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/** |
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* snd_vx_irq_handler - interrupt handler |
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* @irq: irq number |
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* @dev: VX core instance |
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*/ |
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irqreturn_t snd_vx_irq_handler(int irq, void *dev) |
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{ |
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struct vx_core *chip = dev; |
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|
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if (! (chip->chip_status & VX_STAT_CHIP_INIT) || |
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(chip->chip_status & VX_STAT_IS_STALE)) |
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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 const char * const audio_src_vxp[] = { "Line", "Mic", "Digital" }; |
|
static const char * const audio_src_vx2[] = { "Analog", "Analog", "Digital" }; |
|
static const char * const clock_mode[] = { "Auto", "Internal", "External" }; |
|
static const char * const clock_src[] = { "Internal", "External" }; |
|
static const char * const 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); |
|
|
|
err = snd_vx_load_boot_image(chip, boot); |
|
if (err < 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 */ |
|
err = vx_wait_isr_bit(chip, ISR_TX_EMPTY); |
|
if (err < 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); |
|
|
|
err = vx_wait_isr_bit(chip, ISR_CHK); |
|
if (err < 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 |
|
|
|
static void snd_vx_release(struct device *dev, void *data) |
|
{ |
|
snd_vx_free_firmware(data); |
|
} |
|
|
|
/** |
|
* 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. |
|
* |
|
* The object is managed via devres, and will be automatically released. |
|
* |
|
* return the instance pointer if successful, NULL in error. |
|
*/ |
|
struct vx_core *snd_vx_create(struct snd_card *card, |
|
const struct snd_vx_hardware *hw, |
|
const struct snd_vx_ops *ops, |
|
int extra_size) |
|
{ |
|
struct vx_core *chip; |
|
|
|
if (snd_BUG_ON(!card || !hw || !ops)) |
|
return NULL; |
|
|
|
chip = devres_alloc(snd_vx_release, 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);
|
|
|