11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * Driver for Digigram VX soundcards 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Hardware core part 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> 71da177e4SLinus Torvalds * 81da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or modify 91da177e4SLinus Torvalds * it under the terms of the GNU General Public License as published by 101da177e4SLinus Torvalds * the Free Software Foundation; either version 2 of the License, or 111da177e4SLinus Torvalds * (at your option) any later version. 121da177e4SLinus Torvalds * 131da177e4SLinus Torvalds * This program is distributed in the hope that it will be useful, 141da177e4SLinus Torvalds * but WITHOUT ANY WARRANTY; without even the implied warranty of 151da177e4SLinus Torvalds * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 161da177e4SLinus Torvalds * GNU General Public License for more details. 171da177e4SLinus Torvalds * 181da177e4SLinus Torvalds * You should have received a copy of the GNU General Public License 191da177e4SLinus Torvalds * along with this program; if not, write to the Free Software 201da177e4SLinus Torvalds * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 211da177e4SLinus Torvalds */ 221da177e4SLinus Torvalds 231da177e4SLinus Torvalds #include <linux/delay.h> 241da177e4SLinus Torvalds #include <linux/slab.h> 251da177e4SLinus Torvalds #include <linux/interrupt.h> 261da177e4SLinus Torvalds #include <linux/init.h> 271da177e4SLinus Torvalds #include <linux/device.h> 281da177e4SLinus Torvalds #include <linux/firmware.h> 291da177e4SLinus Torvalds #include <sound/core.h> 301da177e4SLinus Torvalds #include <sound/pcm.h> 311da177e4SLinus Torvalds #include <sound/asoundef.h> 321da177e4SLinus Torvalds #include <sound/info.h> 331da177e4SLinus Torvalds #include <asm/io.h> 341da177e4SLinus Torvalds #include <sound/vx_core.h> 351da177e4SLinus Torvalds #include "vx_cmd.h" 361da177e4SLinus Torvalds 371da177e4SLinus Torvalds MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>"); 381da177e4SLinus Torvalds MODULE_DESCRIPTION("Common routines for Digigram VX drivers"); 391da177e4SLinus Torvalds MODULE_LICENSE("GPL"); 401da177e4SLinus Torvalds 411da177e4SLinus Torvalds 421da177e4SLinus Torvalds /* 431da177e4SLinus Torvalds * vx_check_reg_bit - wait for the specified bit is set/reset on a register 441da177e4SLinus Torvalds * @reg: register to check 451da177e4SLinus Torvalds * @mask: bit mask 461da177e4SLinus Torvalds * @bit: resultant bit to be checked 471da177e4SLinus Torvalds * @time: time-out of loop in msec 481da177e4SLinus Torvalds * 491da177e4SLinus Torvalds * returns zero if a bit matches, or a negative error code. 501da177e4SLinus Torvalds */ 51af26367fSTakashi Iwai int snd_vx_check_reg_bit(struct vx_core *chip, int reg, int mask, int bit, int time) 521da177e4SLinus Torvalds { 531da177e4SLinus Torvalds unsigned long end_time = jiffies + (time * HZ + 999) / 1000; 541da177e4SLinus Torvalds #ifdef CONFIG_SND_DEBUG 551da177e4SLinus Torvalds static char *reg_names[VX_REG_MAX] = { 561da177e4SLinus Torvalds "ICR", "CVR", "ISR", "IVR", "RXH", "RXM", "RXL", 571da177e4SLinus Torvalds "DMA", "CDSP", "RFREQ", "RUER/V2", "DATA", "MEMIRQ", 581da177e4SLinus Torvalds "ACQ", "BIT0", "BIT1", "MIC0", "MIC1", "MIC2", 591da177e4SLinus Torvalds "MIC3", "INTCSR", "CNTRL", "GPIOC", 601da177e4SLinus Torvalds "LOFREQ", "HIFREQ", "CSUER", "RUER" 611da177e4SLinus Torvalds }; 621da177e4SLinus Torvalds #endif 631da177e4SLinus Torvalds do { 641da177e4SLinus Torvalds if ((snd_vx_inb(chip, reg) & mask) == bit) 651da177e4SLinus Torvalds return 0; 66bdbae7e6STakashi Iwai //msleep(10); 671da177e4SLinus Torvalds } while (time_after_eq(end_time, jiffies)); 681da177e4SLinus Torvalds 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)); 691da177e4SLinus Torvalds return -EIO; 701da177e4SLinus Torvalds } 711da177e4SLinus Torvalds 72fa325eb3STakashi Iwai EXPORT_SYMBOL(snd_vx_check_reg_bit); 73fa325eb3STakashi Iwai 741da177e4SLinus Torvalds /* 751da177e4SLinus Torvalds * vx_send_irq_dsp - set command irq bit 761da177e4SLinus Torvalds * @num: the requested IRQ type, IRQ_XXX 771da177e4SLinus Torvalds * 781da177e4SLinus Torvalds * this triggers the specified IRQ request 791da177e4SLinus Torvalds * returns 0 if successful, or a negative error code. 801da177e4SLinus Torvalds * 811da177e4SLinus Torvalds */ 82af26367fSTakashi Iwai static int vx_send_irq_dsp(struct vx_core *chip, int num) 831da177e4SLinus Torvalds { 841da177e4SLinus Torvalds int nirq; 851da177e4SLinus Torvalds 861da177e4SLinus Torvalds /* wait for Hc = 0 */ 871da177e4SLinus Torvalds if (snd_vx_check_reg_bit(chip, VX_CVR, CVR_HC, 0, 200) < 0) 881da177e4SLinus Torvalds return -EIO; 891da177e4SLinus Torvalds 901da177e4SLinus Torvalds nirq = num; 911da177e4SLinus Torvalds if (vx_has_new_dsp(chip)) 921da177e4SLinus Torvalds nirq += VXP_IRQ_OFFSET; 931da177e4SLinus Torvalds vx_outb(chip, CVR, (nirq >> 1) | CVR_HC); 941da177e4SLinus Torvalds return 0; 951da177e4SLinus Torvalds } 961da177e4SLinus Torvalds 971da177e4SLinus Torvalds 981da177e4SLinus Torvalds /* 991da177e4SLinus Torvalds * vx_reset_chk - reset CHK bit on ISR 1001da177e4SLinus Torvalds * 1011da177e4SLinus Torvalds * returns 0 if successful, or a negative error code. 1021da177e4SLinus Torvalds */ 103af26367fSTakashi Iwai static int vx_reset_chk(struct vx_core *chip) 1041da177e4SLinus Torvalds { 1051da177e4SLinus Torvalds /* Reset irq CHK */ 1061da177e4SLinus Torvalds if (vx_send_irq_dsp(chip, IRQ_RESET_CHK) < 0) 1071da177e4SLinus Torvalds return -EIO; 1081da177e4SLinus Torvalds /* Wait until CHK = 0 */ 1091da177e4SLinus Torvalds if (vx_check_isr(chip, ISR_CHK, 0, 200) < 0) 1101da177e4SLinus Torvalds return -EIO; 1111da177e4SLinus Torvalds return 0; 1121da177e4SLinus Torvalds } 1131da177e4SLinus Torvalds 1141da177e4SLinus Torvalds /* 1151da177e4SLinus Torvalds * vx_transfer_end - terminate message transfer 1161da177e4SLinus Torvalds * @cmd: IRQ message to send (IRQ_MESS_XXX_END) 1171da177e4SLinus Torvalds * 1181da177e4SLinus Torvalds * returns 0 if successful, or a negative error code. 1191da177e4SLinus Torvalds * the error code can be VX-specific, retrieved via vx_get_error(). 1201da177e4SLinus Torvalds * NB: call with spinlock held! 1211da177e4SLinus Torvalds */ 122af26367fSTakashi Iwai static int vx_transfer_end(struct vx_core *chip, int cmd) 1231da177e4SLinus Torvalds { 1241da177e4SLinus Torvalds int err; 1251da177e4SLinus Torvalds 1261da177e4SLinus Torvalds if ((err = vx_reset_chk(chip)) < 0) 1271da177e4SLinus Torvalds return err; 1281da177e4SLinus Torvalds 1291da177e4SLinus Torvalds /* irq MESS_READ/WRITE_END */ 1301da177e4SLinus Torvalds if ((err = vx_send_irq_dsp(chip, cmd)) < 0) 1311da177e4SLinus Torvalds return err; 1321da177e4SLinus Torvalds 1331da177e4SLinus Torvalds /* Wait CHK = 1 */ 1341da177e4SLinus Torvalds if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0) 1351da177e4SLinus Torvalds return err; 1361da177e4SLinus Torvalds 1371da177e4SLinus Torvalds /* If error, Read RX */ 1381da177e4SLinus Torvalds if ((err = vx_inb(chip, ISR)) & ISR_ERR) { 1391da177e4SLinus Torvalds if ((err = vx_wait_for_rx_full(chip)) < 0) { 1401da177e4SLinus Torvalds snd_printd(KERN_DEBUG "transfer_end: error in rx_full\n"); 1411da177e4SLinus Torvalds return err; 1421da177e4SLinus Torvalds } 1431da177e4SLinus Torvalds err = vx_inb(chip, RXH) << 16; 1441da177e4SLinus Torvalds err |= vx_inb(chip, RXM) << 8; 1451da177e4SLinus Torvalds err |= vx_inb(chip, RXL); 1461da177e4SLinus Torvalds snd_printd(KERN_DEBUG "transfer_end: error = 0x%x\n", err); 1471da177e4SLinus Torvalds return -(VX_ERR_MASK | err); 1481da177e4SLinus Torvalds } 1491da177e4SLinus Torvalds return 0; 1501da177e4SLinus Torvalds } 1511da177e4SLinus Torvalds 1521da177e4SLinus Torvalds /* 1531da177e4SLinus Torvalds * vx_read_status - return the status rmh 1541da177e4SLinus Torvalds * @rmh: rmh record to store the status 1551da177e4SLinus Torvalds * 1561da177e4SLinus Torvalds * returns 0 if successful, or a negative error code. 1571da177e4SLinus Torvalds * the error code can be VX-specific, retrieved via vx_get_error(). 1581da177e4SLinus Torvalds * NB: call with spinlock held! 1591da177e4SLinus Torvalds */ 160af26367fSTakashi Iwai static int vx_read_status(struct vx_core *chip, struct vx_rmh *rmh) 1611da177e4SLinus Torvalds { 1621da177e4SLinus Torvalds int i, err, val, size; 1631da177e4SLinus Torvalds 1641da177e4SLinus Torvalds /* no read necessary? */ 1651da177e4SLinus Torvalds if (rmh->DspStat == RMH_SSIZE_FIXED && rmh->LgStat == 0) 1661da177e4SLinus Torvalds return 0; 1671da177e4SLinus Torvalds 1681da177e4SLinus Torvalds /* Wait for RX full (with timeout protection) 1691da177e4SLinus Torvalds * The first word of status is in RX 1701da177e4SLinus Torvalds */ 1711da177e4SLinus Torvalds err = vx_wait_for_rx_full(chip); 1721da177e4SLinus Torvalds if (err < 0) 1731da177e4SLinus Torvalds return err; 1741da177e4SLinus Torvalds 1751da177e4SLinus Torvalds /* Read RX */ 1761da177e4SLinus Torvalds val = vx_inb(chip, RXH) << 16; 1771da177e4SLinus Torvalds val |= vx_inb(chip, RXM) << 8; 1781da177e4SLinus Torvalds val |= vx_inb(chip, RXL); 1791da177e4SLinus Torvalds 1801da177e4SLinus Torvalds /* If status given by DSP, let's decode its size */ 1811da177e4SLinus Torvalds switch (rmh->DspStat) { 1821da177e4SLinus Torvalds case RMH_SSIZE_ARG: 1831da177e4SLinus Torvalds size = val & 0xff; 1841da177e4SLinus Torvalds rmh->Stat[0] = val & 0xffff00; 1851da177e4SLinus Torvalds rmh->LgStat = size + 1; 1861da177e4SLinus Torvalds break; 1871da177e4SLinus Torvalds case RMH_SSIZE_MASK: 1881da177e4SLinus Torvalds /* Let's count the arg numbers from a mask */ 1891da177e4SLinus Torvalds rmh->Stat[0] = val; 1901da177e4SLinus Torvalds size = 0; 1911da177e4SLinus Torvalds while (val) { 1921da177e4SLinus Torvalds if (val & 0x01) 1931da177e4SLinus Torvalds size++; 1941da177e4SLinus Torvalds val >>= 1; 1951da177e4SLinus Torvalds } 1961da177e4SLinus Torvalds rmh->LgStat = size + 1; 1971da177e4SLinus Torvalds break; 1981da177e4SLinus Torvalds default: 1991da177e4SLinus Torvalds /* else retrieve the status length given by the driver */ 2001da177e4SLinus Torvalds size = rmh->LgStat; 2011da177e4SLinus Torvalds rmh->Stat[0] = val; /* Val is the status 1st word */ 2021da177e4SLinus Torvalds size--; /* hence adjust remaining length */ 2031da177e4SLinus Torvalds break; 2041da177e4SLinus Torvalds } 2051da177e4SLinus Torvalds 2061da177e4SLinus Torvalds if (size < 1) 2071da177e4SLinus Torvalds return 0; 2085e246b85STakashi Iwai if (snd_BUG_ON(size > SIZE_MAX_STATUS)) 2095e246b85STakashi Iwai return -EINVAL; 2101da177e4SLinus Torvalds 2111da177e4SLinus Torvalds for (i = 1; i <= size; i++) { 2121da177e4SLinus Torvalds /* trigger an irq MESS_WRITE_NEXT */ 2131da177e4SLinus Torvalds err = vx_send_irq_dsp(chip, IRQ_MESS_WRITE_NEXT); 2141da177e4SLinus Torvalds if (err < 0) 2151da177e4SLinus Torvalds return err; 2161da177e4SLinus Torvalds /* Wait for RX full (with timeout protection) */ 2171da177e4SLinus Torvalds err = vx_wait_for_rx_full(chip); 2181da177e4SLinus Torvalds if (err < 0) 2191da177e4SLinus Torvalds return err; 2201da177e4SLinus Torvalds rmh->Stat[i] = vx_inb(chip, RXH) << 16; 2211da177e4SLinus Torvalds rmh->Stat[i] |= vx_inb(chip, RXM) << 8; 2221da177e4SLinus Torvalds rmh->Stat[i] |= vx_inb(chip, RXL); 2231da177e4SLinus Torvalds } 2241da177e4SLinus Torvalds 2251da177e4SLinus Torvalds return vx_transfer_end(chip, IRQ_MESS_WRITE_END); 2261da177e4SLinus Torvalds } 2271da177e4SLinus Torvalds 2281da177e4SLinus Torvalds 2291da177e4SLinus Torvalds #define MASK_MORE_THAN_1_WORD_COMMAND 0x00008000 2301da177e4SLinus Torvalds #define MASK_1_WORD_COMMAND 0x00ff7fff 2311da177e4SLinus Torvalds 2321da177e4SLinus Torvalds /* 2331da177e4SLinus Torvalds * vx_send_msg_nolock - send a DSP message and read back the status 2341da177e4SLinus Torvalds * @rmh: the rmh record to send and receive 2351da177e4SLinus Torvalds * 2361da177e4SLinus Torvalds * returns 0 if successful, or a negative error code. 2371da177e4SLinus Torvalds * the error code can be VX-specific, retrieved via vx_get_error(). 2381da177e4SLinus Torvalds * 2391da177e4SLinus Torvalds * this function doesn't call spinlock at all. 2401da177e4SLinus Torvalds */ 241af26367fSTakashi Iwai int vx_send_msg_nolock(struct vx_core *chip, struct vx_rmh *rmh) 2421da177e4SLinus Torvalds { 2431da177e4SLinus Torvalds int i, err; 2441da177e4SLinus Torvalds 2451da177e4SLinus Torvalds if (chip->chip_status & VX_STAT_IS_STALE) 2461da177e4SLinus Torvalds return -EBUSY; 2471da177e4SLinus Torvalds 2481da177e4SLinus Torvalds if ((err = vx_reset_chk(chip)) < 0) { 2491da177e4SLinus Torvalds snd_printd(KERN_DEBUG "vx_send_msg: vx_reset_chk error\n"); 2501da177e4SLinus Torvalds return err; 2511da177e4SLinus Torvalds } 2521da177e4SLinus Torvalds 2531da177e4SLinus Torvalds #if 0 2541da177e4SLinus Torvalds printk(KERN_DEBUG "rmh: cmd = 0x%06x, length = %d, stype = %d\n", 2551da177e4SLinus Torvalds rmh->Cmd[0], rmh->LgCmd, rmh->DspStat); 2561da177e4SLinus Torvalds if (rmh->LgCmd > 1) { 2571da177e4SLinus Torvalds printk(KERN_DEBUG " "); 2581da177e4SLinus Torvalds for (i = 1; i < rmh->LgCmd; i++) 2591da177e4SLinus Torvalds printk("0x%06x ", rmh->Cmd[i]); 2601da177e4SLinus Torvalds printk("\n"); 2611da177e4SLinus Torvalds } 2621da177e4SLinus Torvalds #endif 2631da177e4SLinus Torvalds /* Check bit M is set according to length of the command */ 2641da177e4SLinus Torvalds if (rmh->LgCmd > 1) 2651da177e4SLinus Torvalds rmh->Cmd[0] |= MASK_MORE_THAN_1_WORD_COMMAND; 2661da177e4SLinus Torvalds else 2671da177e4SLinus Torvalds rmh->Cmd[0] &= MASK_1_WORD_COMMAND; 2681da177e4SLinus Torvalds 2691da177e4SLinus Torvalds /* Wait for TX empty */ 2701da177e4SLinus Torvalds if ((err = vx_wait_isr_bit(chip, ISR_TX_EMPTY)) < 0) { 2711da177e4SLinus Torvalds snd_printd(KERN_DEBUG "vx_send_msg: wait tx empty error\n"); 2721da177e4SLinus Torvalds return err; 2731da177e4SLinus Torvalds } 2741da177e4SLinus Torvalds 2751da177e4SLinus Torvalds /* Write Cmd[0] */ 2761da177e4SLinus Torvalds vx_outb(chip, TXH, (rmh->Cmd[0] >> 16) & 0xff); 2771da177e4SLinus Torvalds vx_outb(chip, TXM, (rmh->Cmd[0] >> 8) & 0xff); 2781da177e4SLinus Torvalds vx_outb(chip, TXL, rmh->Cmd[0] & 0xff); 2791da177e4SLinus Torvalds 2801da177e4SLinus Torvalds /* Trigger irq MESSAGE */ 2811da177e4SLinus Torvalds if ((err = vx_send_irq_dsp(chip, IRQ_MESSAGE)) < 0) { 2821da177e4SLinus Torvalds snd_printd(KERN_DEBUG "vx_send_msg: send IRQ_MESSAGE error\n"); 2831da177e4SLinus Torvalds return err; 2841da177e4SLinus Torvalds } 2851da177e4SLinus Torvalds 2861da177e4SLinus Torvalds /* Wait for CHK = 1 */ 2871da177e4SLinus Torvalds if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0) 2881da177e4SLinus Torvalds return err; 2891da177e4SLinus Torvalds 2901da177e4SLinus Torvalds /* If error, get error value from RX */ 2911da177e4SLinus Torvalds if (vx_inb(chip, ISR) & ISR_ERR) { 2921da177e4SLinus Torvalds if ((err = vx_wait_for_rx_full(chip)) < 0) { 2931da177e4SLinus Torvalds snd_printd(KERN_DEBUG "vx_send_msg: rx_full read error\n"); 2941da177e4SLinus Torvalds return err; 2951da177e4SLinus Torvalds } 2961da177e4SLinus Torvalds err = vx_inb(chip, RXH) << 16; 2971da177e4SLinus Torvalds err |= vx_inb(chip, RXM) << 8; 2981da177e4SLinus Torvalds err |= vx_inb(chip, RXL); 2991da177e4SLinus Torvalds snd_printd(KERN_DEBUG "msg got error = 0x%x at cmd[0]\n", err); 3001da177e4SLinus Torvalds err = -(VX_ERR_MASK | err); 3011da177e4SLinus Torvalds return err; 3021da177e4SLinus Torvalds } 3031da177e4SLinus Torvalds 3041da177e4SLinus Torvalds /* Send the other words */ 3051da177e4SLinus Torvalds if (rmh->LgCmd > 1) { 3061da177e4SLinus Torvalds for (i = 1; i < rmh->LgCmd; i++) { 3071da177e4SLinus Torvalds /* Wait for TX ready */ 3081da177e4SLinus Torvalds if ((err = vx_wait_isr_bit(chip, ISR_TX_READY)) < 0) { 3091da177e4SLinus Torvalds snd_printd(KERN_DEBUG "vx_send_msg: tx_ready error\n"); 3101da177e4SLinus Torvalds return err; 3111da177e4SLinus Torvalds } 3121da177e4SLinus Torvalds 3131da177e4SLinus Torvalds /* Write Cmd[i] */ 3141da177e4SLinus Torvalds vx_outb(chip, TXH, (rmh->Cmd[i] >> 16) & 0xff); 3151da177e4SLinus Torvalds vx_outb(chip, TXM, (rmh->Cmd[i] >> 8) & 0xff); 3161da177e4SLinus Torvalds vx_outb(chip, TXL, rmh->Cmd[i] & 0xff); 3171da177e4SLinus Torvalds 3181da177e4SLinus Torvalds /* Trigger irq MESS_READ_NEXT */ 3191da177e4SLinus Torvalds if ((err = vx_send_irq_dsp(chip, IRQ_MESS_READ_NEXT)) < 0) { 3201da177e4SLinus Torvalds snd_printd(KERN_DEBUG "vx_send_msg: IRQ_READ_NEXT error\n"); 3211da177e4SLinus Torvalds return err; 3221da177e4SLinus Torvalds } 3231da177e4SLinus Torvalds } 3241da177e4SLinus Torvalds /* Wait for TX empty */ 3251da177e4SLinus Torvalds if ((err = vx_wait_isr_bit(chip, ISR_TX_READY)) < 0) { 3261da177e4SLinus Torvalds snd_printd(KERN_DEBUG "vx_send_msg: TX_READY error\n"); 3271da177e4SLinus Torvalds return err; 3281da177e4SLinus Torvalds } 3291da177e4SLinus Torvalds /* End of transfer */ 3301da177e4SLinus Torvalds err = vx_transfer_end(chip, IRQ_MESS_READ_END); 3311da177e4SLinus Torvalds if (err < 0) 3321da177e4SLinus Torvalds return err; 3331da177e4SLinus Torvalds } 3341da177e4SLinus Torvalds 3351da177e4SLinus Torvalds return vx_read_status(chip, rmh); 3361da177e4SLinus Torvalds } 3371da177e4SLinus Torvalds 3381da177e4SLinus Torvalds 3391da177e4SLinus Torvalds /* 3401da177e4SLinus Torvalds * vx_send_msg - send a DSP message with spinlock 3411da177e4SLinus Torvalds * @rmh: the rmh record to send and receive 3421da177e4SLinus Torvalds * 3431da177e4SLinus Torvalds * returns 0 if successful, or a negative error code. 3441da177e4SLinus Torvalds * see vx_send_msg_nolock(). 3451da177e4SLinus Torvalds */ 346af26367fSTakashi Iwai int vx_send_msg(struct vx_core *chip, struct vx_rmh *rmh) 3471da177e4SLinus Torvalds { 3481da177e4SLinus Torvalds unsigned long flags; 3491da177e4SLinus Torvalds int err; 3501da177e4SLinus Torvalds 3511da177e4SLinus Torvalds spin_lock_irqsave(&chip->lock, flags); 3521da177e4SLinus Torvalds err = vx_send_msg_nolock(chip, rmh); 3531da177e4SLinus Torvalds spin_unlock_irqrestore(&chip->lock, flags); 3541da177e4SLinus Torvalds return err; 3551da177e4SLinus Torvalds } 3561da177e4SLinus Torvalds 3571da177e4SLinus Torvalds 3581da177e4SLinus Torvalds /* 3591da177e4SLinus Torvalds * vx_send_rih_nolock - send an RIH to xilinx 3601da177e4SLinus Torvalds * @cmd: the command to send 3611da177e4SLinus Torvalds * 3621da177e4SLinus Torvalds * returns 0 if successful, or a negative error code. 3631da177e4SLinus Torvalds * the error code can be VX-specific, retrieved via vx_get_error(). 3641da177e4SLinus Torvalds * 3651da177e4SLinus Torvalds * this function doesn't call spinlock at all. 3661da177e4SLinus Torvalds * 3671da177e4SLinus Torvalds * unlike RMH, no command is sent to DSP. 3681da177e4SLinus Torvalds */ 369af26367fSTakashi Iwai int vx_send_rih_nolock(struct vx_core *chip, int cmd) 3701da177e4SLinus Torvalds { 3711da177e4SLinus Torvalds int err; 3721da177e4SLinus Torvalds 3731da177e4SLinus Torvalds if (chip->chip_status & VX_STAT_IS_STALE) 3741da177e4SLinus Torvalds return -EBUSY; 3751da177e4SLinus Torvalds 3761da177e4SLinus Torvalds #if 0 3771da177e4SLinus Torvalds printk(KERN_DEBUG "send_rih: cmd = 0x%x\n", cmd); 3781da177e4SLinus Torvalds #endif 3791da177e4SLinus Torvalds if ((err = vx_reset_chk(chip)) < 0) 3801da177e4SLinus Torvalds return err; 3811da177e4SLinus Torvalds /* send the IRQ */ 3821da177e4SLinus Torvalds if ((err = vx_send_irq_dsp(chip, cmd)) < 0) 3831da177e4SLinus Torvalds return err; 3841da177e4SLinus Torvalds /* Wait CHK = 1 */ 3851da177e4SLinus Torvalds if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0) 3861da177e4SLinus Torvalds return err; 3871da177e4SLinus Torvalds /* If error, read RX */ 3881da177e4SLinus Torvalds if (vx_inb(chip, ISR) & ISR_ERR) { 3891da177e4SLinus Torvalds if ((err = vx_wait_for_rx_full(chip)) < 0) 3901da177e4SLinus Torvalds return err; 3911da177e4SLinus Torvalds err = vx_inb(chip, RXH) << 16; 3921da177e4SLinus Torvalds err |= vx_inb(chip, RXM) << 8; 3931da177e4SLinus Torvalds err |= vx_inb(chip, RXL); 3941da177e4SLinus Torvalds return -(VX_ERR_MASK | err); 3951da177e4SLinus Torvalds } 3961da177e4SLinus Torvalds return 0; 3971da177e4SLinus Torvalds } 3981da177e4SLinus Torvalds 3991da177e4SLinus Torvalds 4001da177e4SLinus Torvalds /* 4011da177e4SLinus Torvalds * vx_send_rih - send an RIH with spinlock 4021da177e4SLinus Torvalds * @cmd: the command to send 4031da177e4SLinus Torvalds * 4041da177e4SLinus Torvalds * see vx_send_rih_nolock(). 4051da177e4SLinus Torvalds */ 406af26367fSTakashi Iwai int vx_send_rih(struct vx_core *chip, int cmd) 4071da177e4SLinus Torvalds { 4081da177e4SLinus Torvalds unsigned long flags; 4091da177e4SLinus Torvalds int err; 4101da177e4SLinus Torvalds 4111da177e4SLinus Torvalds spin_lock_irqsave(&chip->lock, flags); 4121da177e4SLinus Torvalds err = vx_send_rih_nolock(chip, cmd); 4131da177e4SLinus Torvalds spin_unlock_irqrestore(&chip->lock, flags); 4141da177e4SLinus Torvalds return err; 4151da177e4SLinus Torvalds } 4161da177e4SLinus Torvalds 4171da177e4SLinus Torvalds #define END_OF_RESET_WAIT_TIME 500 /* us */ 4181da177e4SLinus Torvalds 4191da177e4SLinus Torvalds /** 4201da177e4SLinus Torvalds * snd_vx_boot_xilinx - boot up the xilinx interface 4211da177e4SLinus Torvalds * @boot: the boot record to load 4221da177e4SLinus Torvalds */ 423af26367fSTakashi Iwai int snd_vx_load_boot_image(struct vx_core *chip, const struct firmware *boot) 4241da177e4SLinus Torvalds { 4251da177e4SLinus Torvalds unsigned int i; 4261da177e4SLinus Torvalds int no_fillup = vx_has_new_dsp(chip); 4271da177e4SLinus Torvalds 4281da177e4SLinus Torvalds /* check the length of boot image */ 4295e246b85STakashi Iwai if (boot->size <= 0) 4305e246b85STakashi Iwai return -EINVAL; 4315e246b85STakashi Iwai if (boot->size % 3) 4325e246b85STakashi Iwai return -EINVAL; 4331da177e4SLinus Torvalds #if 0 4341da177e4SLinus Torvalds { 4351da177e4SLinus Torvalds /* more strict check */ 4361da177e4SLinus Torvalds unsigned int c = ((u32)boot->data[0] << 16) | ((u32)boot->data[1] << 8) | boot->data[2]; 4375e246b85STakashi Iwai if (boot->size != (c + 2) * 3) 4385e246b85STakashi Iwai return -EINVAL; 4391da177e4SLinus Torvalds } 4401da177e4SLinus Torvalds #endif 4411da177e4SLinus Torvalds 4421da177e4SLinus Torvalds /* reset dsp */ 4431da177e4SLinus Torvalds vx_reset_dsp(chip); 4441da177e4SLinus Torvalds 4451da177e4SLinus Torvalds udelay(END_OF_RESET_WAIT_TIME); /* another wait? */ 4461da177e4SLinus Torvalds 4471da177e4SLinus Torvalds /* download boot strap */ 4481da177e4SLinus Torvalds for (i = 0; i < 0x600; i += 3) { 4491da177e4SLinus Torvalds if (i >= boot->size) { 4501da177e4SLinus Torvalds if (no_fillup) 4511da177e4SLinus Torvalds break; 4521da177e4SLinus Torvalds if (vx_wait_isr_bit(chip, ISR_TX_EMPTY) < 0) { 4531da177e4SLinus Torvalds snd_printk(KERN_ERR "dsp boot failed at %d\n", i); 4541da177e4SLinus Torvalds return -EIO; 4551da177e4SLinus Torvalds } 4561da177e4SLinus Torvalds vx_outb(chip, TXH, 0); 4571da177e4SLinus Torvalds vx_outb(chip, TXM, 0); 4581da177e4SLinus Torvalds vx_outb(chip, TXL, 0); 4591da177e4SLinus Torvalds } else { 4602f0600b6SDavid Woodhouse const unsigned char *image = boot->data + i; 4611da177e4SLinus Torvalds if (vx_wait_isr_bit(chip, ISR_TX_EMPTY) < 0) { 4621da177e4SLinus Torvalds snd_printk(KERN_ERR "dsp boot failed at %d\n", i); 4631da177e4SLinus Torvalds return -EIO; 4641da177e4SLinus Torvalds } 4651da177e4SLinus Torvalds vx_outb(chip, TXH, image[0]); 4661da177e4SLinus Torvalds vx_outb(chip, TXM, image[1]); 4671da177e4SLinus Torvalds vx_outb(chip, TXL, image[2]); 4681da177e4SLinus Torvalds } 4691da177e4SLinus Torvalds } 4701da177e4SLinus Torvalds return 0; 4711da177e4SLinus Torvalds } 4721da177e4SLinus Torvalds 473fa325eb3STakashi Iwai EXPORT_SYMBOL(snd_vx_load_boot_image); 474fa325eb3STakashi Iwai 4751da177e4SLinus Torvalds /* 4761da177e4SLinus Torvalds * vx_test_irq_src - query the source of interrupts 4771da177e4SLinus Torvalds * 4781da177e4SLinus Torvalds * called from irq handler only 4791da177e4SLinus Torvalds */ 480af26367fSTakashi Iwai static int vx_test_irq_src(struct vx_core *chip, unsigned int *ret) 4811da177e4SLinus Torvalds { 4821da177e4SLinus Torvalds int err; 4831da177e4SLinus Torvalds 4841da177e4SLinus Torvalds vx_init_rmh(&chip->irq_rmh, CMD_TEST_IT); 4851da177e4SLinus Torvalds spin_lock(&chip->lock); 4861da177e4SLinus Torvalds err = vx_send_msg_nolock(chip, &chip->irq_rmh); 4871da177e4SLinus Torvalds if (err < 0) 4881da177e4SLinus Torvalds *ret = 0; 4891da177e4SLinus Torvalds else 4901da177e4SLinus Torvalds *ret = chip->irq_rmh.Stat[0]; 4911da177e4SLinus Torvalds spin_unlock(&chip->lock); 4921da177e4SLinus Torvalds return err; 4931da177e4SLinus Torvalds } 4941da177e4SLinus Torvalds 4951da177e4SLinus Torvalds 4961da177e4SLinus Torvalds /* 4971da177e4SLinus Torvalds * vx_interrupt - soft irq handler 4981da177e4SLinus Torvalds */ 4991da177e4SLinus Torvalds static void vx_interrupt(unsigned long private_data) 5001da177e4SLinus Torvalds { 501af26367fSTakashi Iwai struct vx_core *chip = (struct vx_core *) private_data; 5021da177e4SLinus Torvalds unsigned int events; 5031da177e4SLinus Torvalds 5041da177e4SLinus Torvalds if (chip->chip_status & VX_STAT_IS_STALE) 5051da177e4SLinus Torvalds return; 5061da177e4SLinus Torvalds 5071da177e4SLinus Torvalds if (vx_test_irq_src(chip, &events) < 0) 5081da177e4SLinus Torvalds return; 5091da177e4SLinus Torvalds 5101da177e4SLinus Torvalds #if 0 5111da177e4SLinus Torvalds if (events & 0x000800) 5121da177e4SLinus Torvalds printk(KERN_ERR "DSP Stream underrun ! IRQ events = 0x%x\n", events); 5131da177e4SLinus Torvalds #endif 5141da177e4SLinus Torvalds // printk(KERN_DEBUG "IRQ events = 0x%x\n", events); 5151da177e4SLinus Torvalds 5161da177e4SLinus Torvalds /* We must prevent any application using this DSP 5171da177e4SLinus Torvalds * and block any further request until the application 5181da177e4SLinus Torvalds * either unregisters or reloads the DSP 5191da177e4SLinus Torvalds */ 5201da177e4SLinus Torvalds if (events & FATAL_DSP_ERROR) { 5211da177e4SLinus Torvalds snd_printk(KERN_ERR "vx_core: fatal DSP error!!\n"); 5221da177e4SLinus Torvalds return; 5231da177e4SLinus Torvalds } 5241da177e4SLinus Torvalds 5251da177e4SLinus Torvalds /* The start on time code conditions are filled (ie the time code 5261da177e4SLinus Torvalds * received by the board is equal to one of those given to it). 5271da177e4SLinus Torvalds */ 5281da177e4SLinus Torvalds if (events & TIME_CODE_EVENT_PENDING) 5291da177e4SLinus Torvalds ; /* so far, nothing to do yet */ 5301da177e4SLinus Torvalds 5311da177e4SLinus Torvalds /* The frequency has changed on the board (UER mode). */ 5321da177e4SLinus Torvalds if (events & FREQUENCY_CHANGE_EVENT_PENDING) 5331da177e4SLinus Torvalds vx_change_frequency(chip); 5341da177e4SLinus Torvalds 5351da177e4SLinus Torvalds /* update the pcm streams */ 5361da177e4SLinus Torvalds vx_pcm_update_intr(chip, events); 5371da177e4SLinus Torvalds } 5381da177e4SLinus Torvalds 5391da177e4SLinus Torvalds 5401da177e4SLinus Torvalds /** 5411da177e4SLinus Torvalds * snd_vx_irq_handler - interrupt handler 5421da177e4SLinus Torvalds */ 5437d12e780SDavid Howells irqreturn_t snd_vx_irq_handler(int irq, void *dev) 5441da177e4SLinus Torvalds { 545af26367fSTakashi Iwai struct vx_core *chip = dev; 5461da177e4SLinus Torvalds 5471da177e4SLinus Torvalds if (! (chip->chip_status & VX_STAT_CHIP_INIT) || 5481da177e4SLinus Torvalds (chip->chip_status & VX_STAT_IS_STALE)) 5491da177e4SLinus Torvalds return IRQ_NONE; 5501da177e4SLinus Torvalds if (! vx_test_and_ack(chip)) 5511da177e4SLinus Torvalds tasklet_hi_schedule(&chip->tq); 5521da177e4SLinus Torvalds return IRQ_HANDLED; 5531da177e4SLinus Torvalds } 5541da177e4SLinus Torvalds 555fa325eb3STakashi Iwai EXPORT_SYMBOL(snd_vx_irq_handler); 5561da177e4SLinus Torvalds 5571da177e4SLinus Torvalds /* 5581da177e4SLinus Torvalds */ 559af26367fSTakashi Iwai static void vx_reset_board(struct vx_core *chip, int cold_reset) 5601da177e4SLinus Torvalds { 5615e246b85STakashi Iwai if (snd_BUG_ON(!chip->ops->reset_board)) 5625e246b85STakashi Iwai return; 5631da177e4SLinus Torvalds 5641da177e4SLinus Torvalds /* current source, later sync'ed with target */ 5651da177e4SLinus Torvalds chip->audio_source = VX_AUDIO_SRC_LINE; 5661da177e4SLinus Torvalds if (cold_reset) { 5671da177e4SLinus Torvalds chip->audio_source_target = chip->audio_source; 5681da177e4SLinus Torvalds chip->clock_source = INTERNAL_QUARTZ; 5691da177e4SLinus Torvalds chip->clock_mode = VX_CLOCK_MODE_AUTO; 5701da177e4SLinus Torvalds chip->freq = 48000; 5711da177e4SLinus Torvalds chip->uer_detected = VX_UER_MODE_NOT_PRESENT; 5721da177e4SLinus Torvalds chip->uer_bits = SNDRV_PCM_DEFAULT_CON_SPDIF; 5731da177e4SLinus Torvalds } 5741da177e4SLinus Torvalds 5751da177e4SLinus Torvalds chip->ops->reset_board(chip, cold_reset); 5761da177e4SLinus Torvalds 5771da177e4SLinus Torvalds vx_reset_codec(chip, cold_reset); 5781da177e4SLinus Torvalds 5791da177e4SLinus Torvalds vx_set_internal_clock(chip, chip->freq); 5801da177e4SLinus Torvalds 5811da177e4SLinus Torvalds /* Reset the DSP */ 5821da177e4SLinus Torvalds vx_reset_dsp(chip); 5831da177e4SLinus Torvalds 5841da177e4SLinus Torvalds if (vx_is_pcmcia(chip)) { 5851da177e4SLinus Torvalds /* Acknowledge any pending IRQ and reset the MEMIRQ flag. */ 5861da177e4SLinus Torvalds vx_test_and_ack(chip); 5871da177e4SLinus Torvalds vx_validate_irq(chip, 1); 5881da177e4SLinus Torvalds } 5891da177e4SLinus Torvalds 5901da177e4SLinus Torvalds /* init CBits */ 5911da177e4SLinus Torvalds vx_set_iec958_status(chip, chip->uer_bits); 5921da177e4SLinus Torvalds } 5931da177e4SLinus Torvalds 5941da177e4SLinus Torvalds 5951da177e4SLinus Torvalds /* 5961da177e4SLinus Torvalds * proc interface 5971da177e4SLinus Torvalds */ 5981da177e4SLinus Torvalds 599af26367fSTakashi Iwai static void vx_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) 6001da177e4SLinus Torvalds { 601af26367fSTakashi Iwai struct vx_core *chip = entry->private_data; 6021da177e4SLinus Torvalds static char *audio_src_vxp[] = { "Line", "Mic", "Digital" }; 6031da177e4SLinus Torvalds static char *audio_src_vx2[] = { "Analog", "Analog", "Digital" }; 6041da177e4SLinus Torvalds static char *clock_mode[] = { "Auto", "Internal", "External" }; 6051da177e4SLinus Torvalds static char *clock_src[] = { "Internal", "External" }; 6061da177e4SLinus Torvalds static char *uer_type[] = { "Consumer", "Professional", "Not Present" }; 6071da177e4SLinus Torvalds 6081da177e4SLinus Torvalds snd_iprintf(buffer, "%s\n", chip->card->longname); 6091da177e4SLinus Torvalds snd_iprintf(buffer, "Xilinx Firmware: %s\n", 6101da177e4SLinus Torvalds chip->chip_status & VX_STAT_XILINX_LOADED ? "Loaded" : "No"); 6111da177e4SLinus Torvalds snd_iprintf(buffer, "Device Initialized: %s\n", 6121da177e4SLinus Torvalds chip->chip_status & VX_STAT_DEVICE_INIT ? "Yes" : "No"); 6131da177e4SLinus Torvalds snd_iprintf(buffer, "DSP audio info:"); 6141da177e4SLinus Torvalds if (chip->audio_info & VX_AUDIO_INFO_REAL_TIME) 6151da177e4SLinus Torvalds snd_iprintf(buffer, " realtime"); 6161da177e4SLinus Torvalds if (chip->audio_info & VX_AUDIO_INFO_OFFLINE) 6171da177e4SLinus Torvalds snd_iprintf(buffer, " offline"); 6181da177e4SLinus Torvalds if (chip->audio_info & VX_AUDIO_INFO_MPEG1) 6191da177e4SLinus Torvalds snd_iprintf(buffer, " mpeg1"); 6201da177e4SLinus Torvalds if (chip->audio_info & VX_AUDIO_INFO_MPEG2) 6211da177e4SLinus Torvalds snd_iprintf(buffer, " mpeg2"); 6221da177e4SLinus Torvalds if (chip->audio_info & VX_AUDIO_INFO_LINEAR_8) 6231da177e4SLinus Torvalds snd_iprintf(buffer, " linear8"); 6241da177e4SLinus Torvalds if (chip->audio_info & VX_AUDIO_INFO_LINEAR_16) 6251da177e4SLinus Torvalds snd_iprintf(buffer, " linear16"); 6261da177e4SLinus Torvalds if (chip->audio_info & VX_AUDIO_INFO_LINEAR_24) 6271da177e4SLinus Torvalds snd_iprintf(buffer, " linear24"); 6281da177e4SLinus Torvalds snd_iprintf(buffer, "\n"); 6291da177e4SLinus Torvalds snd_iprintf(buffer, "Input Source: %s\n", vx_is_pcmcia(chip) ? 6301da177e4SLinus Torvalds audio_src_vxp[chip->audio_source] : 6311da177e4SLinus Torvalds audio_src_vx2[chip->audio_source]); 6321da177e4SLinus Torvalds snd_iprintf(buffer, "Clock Mode: %s\n", clock_mode[chip->clock_mode]); 6331da177e4SLinus Torvalds snd_iprintf(buffer, "Clock Source: %s\n", clock_src[chip->clock_source]); 6341da177e4SLinus Torvalds snd_iprintf(buffer, "Frequency: %d\n", chip->freq); 6351da177e4SLinus Torvalds snd_iprintf(buffer, "Detected Frequency: %d\n", chip->freq_detected); 6361da177e4SLinus Torvalds snd_iprintf(buffer, "Detected UER type: %s\n", uer_type[chip->uer_detected]); 6371da177e4SLinus Torvalds snd_iprintf(buffer, "Min/Max/Cur IBL: %d/%d/%d (granularity=%d)\n", 6381da177e4SLinus Torvalds chip->ibl.min_size, chip->ibl.max_size, chip->ibl.size, 6391da177e4SLinus Torvalds chip->ibl.granularity); 6401da177e4SLinus Torvalds } 6411da177e4SLinus Torvalds 642af26367fSTakashi Iwai static void vx_proc_init(struct vx_core *chip) 6431da177e4SLinus Torvalds { 644af26367fSTakashi Iwai struct snd_info_entry *entry; 6451da177e4SLinus Torvalds 6461da177e4SLinus Torvalds if (! snd_card_proc_new(chip->card, "vx-status", &entry)) 647bf850204STakashi Iwai snd_info_set_text_ops(entry, chip, vx_proc_read); 6481da177e4SLinus Torvalds } 6491da177e4SLinus Torvalds 6501da177e4SLinus Torvalds 6511da177e4SLinus Torvalds /** 6521da177e4SLinus Torvalds * snd_vx_dsp_boot - load the DSP boot 6531da177e4SLinus Torvalds */ 654af26367fSTakashi Iwai int snd_vx_dsp_boot(struct vx_core *chip, const struct firmware *boot) 6551da177e4SLinus Torvalds { 6561da177e4SLinus Torvalds int err; 6571da177e4SLinus Torvalds int cold_reset = !(chip->chip_status & VX_STAT_DEVICE_INIT); 6581da177e4SLinus Torvalds 6591da177e4SLinus Torvalds vx_reset_board(chip, cold_reset); 6601da177e4SLinus Torvalds vx_validate_irq(chip, 0); 6611da177e4SLinus Torvalds 6621da177e4SLinus Torvalds if ((err = snd_vx_load_boot_image(chip, boot)) < 0) 6631da177e4SLinus Torvalds return err; 664bdbae7e6STakashi Iwai msleep(10); 6651da177e4SLinus Torvalds 6661da177e4SLinus Torvalds return 0; 6671da177e4SLinus Torvalds } 6681da177e4SLinus Torvalds 669fa325eb3STakashi Iwai EXPORT_SYMBOL(snd_vx_dsp_boot); 670fa325eb3STakashi Iwai 6711da177e4SLinus Torvalds /** 6721da177e4SLinus Torvalds * snd_vx_dsp_load - load the DSP image 6731da177e4SLinus Torvalds */ 674af26367fSTakashi Iwai int snd_vx_dsp_load(struct vx_core *chip, const struct firmware *dsp) 6751da177e4SLinus Torvalds { 6761da177e4SLinus Torvalds unsigned int i; 6771da177e4SLinus Torvalds int err; 6781da177e4SLinus Torvalds unsigned int csum = 0; 6792f0600b6SDavid Woodhouse const unsigned char *image, *cptr; 6801da177e4SLinus Torvalds 6815e246b85STakashi Iwai if (dsp->size % 3) 6825e246b85STakashi Iwai return -EINVAL; 6831da177e4SLinus Torvalds 6841da177e4SLinus Torvalds vx_toggle_dac_mute(chip, 1); 6851da177e4SLinus Torvalds 6861da177e4SLinus Torvalds /* Transfert data buffer from PC to DSP */ 6871da177e4SLinus Torvalds for (i = 0; i < dsp->size; i += 3) { 6881da177e4SLinus Torvalds image = dsp->data + i; 6891da177e4SLinus Torvalds /* Wait DSP ready for a new read */ 6901da177e4SLinus Torvalds if ((err = vx_wait_isr_bit(chip, ISR_TX_EMPTY)) < 0) { 6911da177e4SLinus Torvalds printk("dsp loading error at position %d\n", i); 6921da177e4SLinus Torvalds return err; 6931da177e4SLinus Torvalds } 6941da177e4SLinus Torvalds cptr = image; 6951da177e4SLinus Torvalds csum ^= *cptr; 6961da177e4SLinus Torvalds csum = (csum >> 24) | (csum << 8); 6971da177e4SLinus Torvalds vx_outb(chip, TXH, *cptr++); 6981da177e4SLinus Torvalds csum ^= *cptr; 6991da177e4SLinus Torvalds csum = (csum >> 24) | (csum << 8); 7001da177e4SLinus Torvalds vx_outb(chip, TXM, *cptr++); 7011da177e4SLinus Torvalds csum ^= *cptr; 7021da177e4SLinus Torvalds csum = (csum >> 24) | (csum << 8); 7031da177e4SLinus Torvalds vx_outb(chip, TXL, *cptr++); 7041da177e4SLinus Torvalds } 7051da177e4SLinus Torvalds snd_printdd(KERN_DEBUG "checksum = 0x%08x\n", csum); 7061da177e4SLinus Torvalds 707bdbae7e6STakashi Iwai msleep(200); 7081da177e4SLinus Torvalds 7091da177e4SLinus Torvalds if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0) 7101da177e4SLinus Torvalds return err; 7111da177e4SLinus Torvalds 7121da177e4SLinus Torvalds vx_toggle_dac_mute(chip, 0); 7131da177e4SLinus Torvalds 7141da177e4SLinus Torvalds vx_test_and_ack(chip); 7151da177e4SLinus Torvalds vx_validate_irq(chip, 1); 7161da177e4SLinus Torvalds 7171da177e4SLinus Torvalds return 0; 7181da177e4SLinus Torvalds } 7191da177e4SLinus Torvalds 720fa325eb3STakashi Iwai EXPORT_SYMBOL(snd_vx_dsp_load); 721fa325eb3STakashi Iwai 7221da177e4SLinus Torvalds #ifdef CONFIG_PM 7231da177e4SLinus Torvalds /* 7241da177e4SLinus Torvalds * suspend 7251da177e4SLinus Torvalds */ 7260ed1cad1STakashi Iwai int snd_vx_suspend(struct vx_core *chip, pm_message_t state) 7271da177e4SLinus Torvalds { 7281da177e4SLinus Torvalds unsigned int i; 7291da177e4SLinus Torvalds 7300ed1cad1STakashi Iwai snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot); 7311da177e4SLinus Torvalds chip->chip_status |= VX_STAT_IN_SUSPEND; 7321da177e4SLinus Torvalds for (i = 0; i < chip->hw->num_codecs; i++) 7331da177e4SLinus Torvalds snd_pcm_suspend_all(chip->pcm[i]); 7341da177e4SLinus Torvalds 7351da177e4SLinus Torvalds return 0; 7361da177e4SLinus Torvalds } 7371da177e4SLinus Torvalds 738fa325eb3STakashi Iwai EXPORT_SYMBOL(snd_vx_suspend); 739fa325eb3STakashi Iwai 7401da177e4SLinus Torvalds /* 7411da177e4SLinus Torvalds * resume 7421da177e4SLinus Torvalds */ 7430ed1cad1STakashi Iwai int snd_vx_resume(struct vx_core *chip) 7441da177e4SLinus Torvalds { 7451da177e4SLinus Torvalds int i, err; 7461da177e4SLinus Torvalds 7471da177e4SLinus Torvalds chip->chip_status &= ~VX_STAT_CHIP_INIT; 7481da177e4SLinus Torvalds 7491da177e4SLinus Torvalds for (i = 0; i < 4; i++) { 7501da177e4SLinus Torvalds if (! chip->firmware[i]) 7511da177e4SLinus Torvalds continue; 7521da177e4SLinus Torvalds err = chip->ops->load_dsp(chip, i, chip->firmware[i]); 7531da177e4SLinus Torvalds if (err < 0) { 7541da177e4SLinus Torvalds snd_printk(KERN_ERR "vx: firmware resume error at DSP %d\n", i); 7551da177e4SLinus Torvalds return -EIO; 7561da177e4SLinus Torvalds } 7571da177e4SLinus Torvalds } 7581da177e4SLinus Torvalds 7591da177e4SLinus Torvalds chip->chip_status |= VX_STAT_CHIP_INIT; 7601da177e4SLinus Torvalds chip->chip_status &= ~VX_STAT_IN_SUSPEND; 7611da177e4SLinus Torvalds 7620ed1cad1STakashi Iwai snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0); 7631da177e4SLinus Torvalds return 0; 7641da177e4SLinus Torvalds } 7651da177e4SLinus Torvalds 766fa325eb3STakashi Iwai EXPORT_SYMBOL(snd_vx_resume); 7671da177e4SLinus Torvalds #endif 7681da177e4SLinus Torvalds 7691da177e4SLinus Torvalds /** 770af26367fSTakashi Iwai * snd_vx_create - constructor for struct vx_core 7711da177e4SLinus Torvalds * @hw: hardware specific record 7721da177e4SLinus Torvalds * 7731da177e4SLinus Torvalds * this function allocates the instance and prepare for the hardware 7741da177e4SLinus Torvalds * initialization. 7751da177e4SLinus Torvalds * 7761da177e4SLinus Torvalds * return the instance pointer if successful, NULL in error. 7771da177e4SLinus Torvalds */ 778af26367fSTakashi Iwai struct vx_core *snd_vx_create(struct snd_card *card, struct snd_vx_hardware *hw, 7791da177e4SLinus Torvalds struct snd_vx_ops *ops, 7801da177e4SLinus Torvalds int extra_size) 7811da177e4SLinus Torvalds { 782af26367fSTakashi Iwai struct vx_core *chip; 7831da177e4SLinus Torvalds 7845e246b85STakashi Iwai if (snd_BUG_ON(!card || !hw || !ops)) 7855e246b85STakashi Iwai return NULL; 7861da177e4SLinus Torvalds 787561b220aSTakashi Iwai chip = kzalloc(sizeof(*chip) + extra_size, GFP_KERNEL); 7881da177e4SLinus Torvalds if (! chip) { 7891da177e4SLinus Torvalds snd_printk(KERN_ERR "vx_core: no memory\n"); 7901da177e4SLinus Torvalds return NULL; 7911da177e4SLinus Torvalds } 7921da177e4SLinus Torvalds spin_lock_init(&chip->lock); 7931da177e4SLinus Torvalds spin_lock_init(&chip->irq_lock); 7941da177e4SLinus Torvalds chip->irq = -1; 7951da177e4SLinus Torvalds chip->hw = hw; 7961da177e4SLinus Torvalds chip->type = hw->type; 7971da177e4SLinus Torvalds chip->ops = ops; 7981da177e4SLinus Torvalds tasklet_init(&chip->tq, vx_interrupt, (unsigned long)chip); 799ef9f0a42SIngo Molnar mutex_init(&chip->mixer_mutex); 8001da177e4SLinus Torvalds 8011da177e4SLinus Torvalds chip->card = card; 8021da177e4SLinus Torvalds card->private_data = chip; 8031da177e4SLinus Torvalds strcpy(card->driver, hw->name); 8041da177e4SLinus Torvalds sprintf(card->shortname, "Digigram %s", hw->name); 8051da177e4SLinus Torvalds 8061da177e4SLinus Torvalds vx_proc_init(chip); 8071da177e4SLinus Torvalds 8081da177e4SLinus Torvalds return chip; 8091da177e4SLinus Torvalds } 8101da177e4SLinus Torvalds 811fa325eb3STakashi Iwai EXPORT_SYMBOL(snd_vx_create); 812fa325eb3STakashi Iwai 8131da177e4SLinus Torvalds /* 8141da177e4SLinus Torvalds * module entries 8151da177e4SLinus Torvalds */ 8161da177e4SLinus Torvalds static int __init alsa_vx_core_init(void) 8171da177e4SLinus Torvalds { 8181da177e4SLinus Torvalds return 0; 8191da177e4SLinus Torvalds } 8201da177e4SLinus Torvalds 8211da177e4SLinus Torvalds static void __exit alsa_vx_core_exit(void) 8221da177e4SLinus Torvalds { 8231da177e4SLinus Torvalds } 8241da177e4SLinus Torvalds 8251da177e4SLinus Torvalds module_init(alsa_vx_core_init) 8261da177e4SLinus Torvalds module_exit(alsa_vx_core_exit) 827