vx_core.c 20 KB

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  1. /*
  2. * Driver for Digigram VX soundcards
  3. *
  4. * Hardware core part
  5. *
  6. * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
  7. *
  8. * This program is free software; you can redistribute it and/or modify
  9. * it under the terms of the GNU General Public License as published by
  10. * the Free Software Foundation; either version 2 of the License, or
  11. * (at your option) any later version.
  12. *
  13. * This program is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. * GNU General Public License for more details.
  17. *
  18. * You should have received a copy of the GNU General Public License
  19. * along with this program; if not, write to the Free Software
  20. * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  21. */
  22. #include <sound/driver.h>
  23. #include <linux/delay.h>
  24. #include <linux/slab.h>
  25. #include <linux/interrupt.h>
  26. #include <linux/init.h>
  27. #include <linux/device.h>
  28. #include <linux/firmware.h>
  29. #include <sound/core.h>
  30. #include <sound/pcm.h>
  31. #include <sound/asoundef.h>
  32. #include <sound/info.h>
  33. #include <asm/io.h>
  34. #include <sound/vx_core.h>
  35. #include "vx_cmd.h"
  36. MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
  37. MODULE_DESCRIPTION("Common routines for Digigram VX drivers");
  38. MODULE_LICENSE("GPL");
  39. /*
  40. * vx_check_reg_bit - wait for the specified bit is set/reset on a register
  41. * @reg: register to check
  42. * @mask: bit mask
  43. * @bit: resultant bit to be checked
  44. * @time: time-out of loop in msec
  45. *
  46. * returns zero if a bit matches, or a negative error code.
  47. */
  48. int snd_vx_check_reg_bit(struct vx_core *chip, int reg, int mask, int bit, int time)
  49. {
  50. unsigned long end_time = jiffies + (time * HZ + 999) / 1000;
  51. #ifdef CONFIG_SND_DEBUG
  52. static char *reg_names[VX_REG_MAX] = {
  53. "ICR", "CVR", "ISR", "IVR", "RXH", "RXM", "RXL",
  54. "DMA", "CDSP", "RFREQ", "RUER/V2", "DATA", "MEMIRQ",
  55. "ACQ", "BIT0", "BIT1", "MIC0", "MIC1", "MIC2",
  56. "MIC3", "INTCSR", "CNTRL", "GPIOC",
  57. "LOFREQ", "HIFREQ", "CSUER", "RUER"
  58. };
  59. #endif
  60. do {
  61. if ((snd_vx_inb(chip, reg) & mask) == bit)
  62. return 0;
  63. //msleep(10);
  64. } while (time_after_eq(end_time, jiffies));
  65. 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));
  66. return -EIO;
  67. }
  68. EXPORT_SYMBOL(snd_vx_check_reg_bit);
  69. /*
  70. * vx_send_irq_dsp - set command irq bit
  71. * @num: the requested IRQ type, IRQ_XXX
  72. *
  73. * this triggers the specified IRQ request
  74. * returns 0 if successful, or a negative error code.
  75. *
  76. */
  77. static int vx_send_irq_dsp(struct vx_core *chip, int num)
  78. {
  79. int nirq;
  80. /* wait for Hc = 0 */
  81. if (snd_vx_check_reg_bit(chip, VX_CVR, CVR_HC, 0, 200) < 0)
  82. return -EIO;
  83. nirq = num;
  84. if (vx_has_new_dsp(chip))
  85. nirq += VXP_IRQ_OFFSET;
  86. vx_outb(chip, CVR, (nirq >> 1) | CVR_HC);
  87. return 0;
  88. }
  89. /*
  90. * vx_reset_chk - reset CHK bit on ISR
  91. *
  92. * returns 0 if successful, or a negative error code.
  93. */
  94. static int vx_reset_chk(struct vx_core *chip)
  95. {
  96. /* Reset irq CHK */
  97. if (vx_send_irq_dsp(chip, IRQ_RESET_CHK) < 0)
  98. return -EIO;
  99. /* Wait until CHK = 0 */
  100. if (vx_check_isr(chip, ISR_CHK, 0, 200) < 0)
  101. return -EIO;
  102. return 0;
  103. }
  104. /*
  105. * vx_transfer_end - terminate message transfer
  106. * @cmd: IRQ message to send (IRQ_MESS_XXX_END)
  107. *
  108. * returns 0 if successful, or a negative error code.
  109. * the error code can be VX-specific, retrieved via vx_get_error().
  110. * NB: call with spinlock held!
  111. */
  112. static int vx_transfer_end(struct vx_core *chip, int cmd)
  113. {
  114. int err;
  115. if ((err = vx_reset_chk(chip)) < 0)
  116. return err;
  117. /* irq MESS_READ/WRITE_END */
  118. if ((err = vx_send_irq_dsp(chip, cmd)) < 0)
  119. return err;
  120. /* Wait CHK = 1 */
  121. if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0)
  122. return err;
  123. /* If error, Read RX */
  124. if ((err = vx_inb(chip, ISR)) & ISR_ERR) {
  125. if ((err = vx_wait_for_rx_full(chip)) < 0) {
  126. snd_printd(KERN_DEBUG "transfer_end: error in rx_full\n");
  127. return err;
  128. }
  129. err = vx_inb(chip, RXH) << 16;
  130. err |= vx_inb(chip, RXM) << 8;
  131. err |= vx_inb(chip, RXL);
  132. snd_printd(KERN_DEBUG "transfer_end: error = 0x%x\n", err);
  133. return -(VX_ERR_MASK | err);
  134. }
  135. return 0;
  136. }
  137. /*
  138. * vx_read_status - return the status rmh
  139. * @rmh: rmh record to store the status
  140. *
  141. * returns 0 if successful, or a negative error code.
  142. * the error code can be VX-specific, retrieved via vx_get_error().
  143. * NB: call with spinlock held!
  144. */
  145. static int vx_read_status(struct vx_core *chip, struct vx_rmh *rmh)
  146. {
  147. int i, err, val, size;
  148. /* no read necessary? */
  149. if (rmh->DspStat == RMH_SSIZE_FIXED && rmh->LgStat == 0)
  150. return 0;
  151. /* Wait for RX full (with timeout protection)
  152. * The first word of status is in RX
  153. */
  154. err = vx_wait_for_rx_full(chip);
  155. if (err < 0)
  156. return err;
  157. /* Read RX */
  158. val = vx_inb(chip, RXH) << 16;
  159. val |= vx_inb(chip, RXM) << 8;
  160. val |= vx_inb(chip, RXL);
  161. /* If status given by DSP, let's decode its size */
  162. switch (rmh->DspStat) {
  163. case RMH_SSIZE_ARG:
  164. size = val & 0xff;
  165. rmh->Stat[0] = val & 0xffff00;
  166. rmh->LgStat = size + 1;
  167. break;
  168. case RMH_SSIZE_MASK:
  169. /* Let's count the arg numbers from a mask */
  170. rmh->Stat[0] = val;
  171. size = 0;
  172. while (val) {
  173. if (val & 0x01)
  174. size++;
  175. val >>= 1;
  176. }
  177. rmh->LgStat = size + 1;
  178. break;
  179. default:
  180. /* else retrieve the status length given by the driver */
  181. size = rmh->LgStat;
  182. rmh->Stat[0] = val; /* Val is the status 1st word */
  183. size--; /* hence adjust remaining length */
  184. break;
  185. }
  186. if (size < 1)
  187. return 0;
  188. snd_assert(size <= SIZE_MAX_STATUS, return -EINVAL);
  189. for (i = 1; i <= size; i++) {
  190. /* trigger an irq MESS_WRITE_NEXT */
  191. err = vx_send_irq_dsp(chip, IRQ_MESS_WRITE_NEXT);
  192. if (err < 0)
  193. return err;
  194. /* Wait for RX full (with timeout protection) */
  195. err = vx_wait_for_rx_full(chip);
  196. if (err < 0)
  197. return err;
  198. rmh->Stat[i] = vx_inb(chip, RXH) << 16;
  199. rmh->Stat[i] |= vx_inb(chip, RXM) << 8;
  200. rmh->Stat[i] |= vx_inb(chip, RXL);
  201. }
  202. return vx_transfer_end(chip, IRQ_MESS_WRITE_END);
  203. }
  204. #define MASK_MORE_THAN_1_WORD_COMMAND 0x00008000
  205. #define MASK_1_WORD_COMMAND 0x00ff7fff
  206. /*
  207. * vx_send_msg_nolock - send a DSP message and read back the status
  208. * @rmh: the rmh record to send and receive
  209. *
  210. * returns 0 if successful, or a negative error code.
  211. * the error code can be VX-specific, retrieved via vx_get_error().
  212. *
  213. * this function doesn't call spinlock at all.
  214. */
  215. int vx_send_msg_nolock(struct vx_core *chip, struct vx_rmh *rmh)
  216. {
  217. int i, err;
  218. if (chip->chip_status & VX_STAT_IS_STALE)
  219. return -EBUSY;
  220. if ((err = vx_reset_chk(chip)) < 0) {
  221. snd_printd(KERN_DEBUG "vx_send_msg: vx_reset_chk error\n");
  222. return err;
  223. }
  224. #if 0
  225. printk(KERN_DEBUG "rmh: cmd = 0x%06x, length = %d, stype = %d\n",
  226. rmh->Cmd[0], rmh->LgCmd, rmh->DspStat);
  227. if (rmh->LgCmd > 1) {
  228. printk(KERN_DEBUG " ");
  229. for (i = 1; i < rmh->LgCmd; i++)
  230. printk("0x%06x ", rmh->Cmd[i]);
  231. printk("\n");
  232. }
  233. #endif
  234. /* Check bit M is set according to length of the command */
  235. if (rmh->LgCmd > 1)
  236. rmh->Cmd[0] |= MASK_MORE_THAN_1_WORD_COMMAND;
  237. else
  238. rmh->Cmd[0] &= MASK_1_WORD_COMMAND;
  239. /* Wait for TX empty */
  240. if ((err = vx_wait_isr_bit(chip, ISR_TX_EMPTY)) < 0) {
  241. snd_printd(KERN_DEBUG "vx_send_msg: wait tx empty error\n");
  242. return err;
  243. }
  244. /* Write Cmd[0] */
  245. vx_outb(chip, TXH, (rmh->Cmd[0] >> 16) & 0xff);
  246. vx_outb(chip, TXM, (rmh->Cmd[0] >> 8) & 0xff);
  247. vx_outb(chip, TXL, rmh->Cmd[0] & 0xff);
  248. /* Trigger irq MESSAGE */
  249. if ((err = vx_send_irq_dsp(chip, IRQ_MESSAGE)) < 0) {
  250. snd_printd(KERN_DEBUG "vx_send_msg: send IRQ_MESSAGE error\n");
  251. return err;
  252. }
  253. /* Wait for CHK = 1 */
  254. if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0)
  255. return err;
  256. /* If error, get error value from RX */
  257. if (vx_inb(chip, ISR) & ISR_ERR) {
  258. if ((err = vx_wait_for_rx_full(chip)) < 0) {
  259. snd_printd(KERN_DEBUG "vx_send_msg: rx_full read error\n");
  260. return err;
  261. }
  262. err = vx_inb(chip, RXH) << 16;
  263. err |= vx_inb(chip, RXM) << 8;
  264. err |= vx_inb(chip, RXL);
  265. snd_printd(KERN_DEBUG "msg got error = 0x%x at cmd[0]\n", err);
  266. err = -(VX_ERR_MASK | err);
  267. return err;
  268. }
  269. /* Send the other words */
  270. if (rmh->LgCmd > 1) {
  271. for (i = 1; i < rmh->LgCmd; i++) {
  272. /* Wait for TX ready */
  273. if ((err = vx_wait_isr_bit(chip, ISR_TX_READY)) < 0) {
  274. snd_printd(KERN_DEBUG "vx_send_msg: tx_ready error\n");
  275. return err;
  276. }
  277. /* Write Cmd[i] */
  278. vx_outb(chip, TXH, (rmh->Cmd[i] >> 16) & 0xff);
  279. vx_outb(chip, TXM, (rmh->Cmd[i] >> 8) & 0xff);
  280. vx_outb(chip, TXL, rmh->Cmd[i] & 0xff);
  281. /* Trigger irq MESS_READ_NEXT */
  282. if ((err = vx_send_irq_dsp(chip, IRQ_MESS_READ_NEXT)) < 0) {
  283. snd_printd(KERN_DEBUG "vx_send_msg: IRQ_READ_NEXT error\n");
  284. return err;
  285. }
  286. }
  287. /* Wait for TX empty */
  288. if ((err = vx_wait_isr_bit(chip, ISR_TX_READY)) < 0) {
  289. snd_printd(KERN_DEBUG "vx_send_msg: TX_READY error\n");
  290. return err;
  291. }
  292. /* End of transfer */
  293. err = vx_transfer_end(chip, IRQ_MESS_READ_END);
  294. if (err < 0)
  295. return err;
  296. }
  297. return vx_read_status(chip, rmh);
  298. }
  299. /*
  300. * vx_send_msg - send a DSP message with spinlock
  301. * @rmh: the rmh record to send and receive
  302. *
  303. * returns 0 if successful, or a negative error code.
  304. * see vx_send_msg_nolock().
  305. */
  306. int vx_send_msg(struct vx_core *chip, struct vx_rmh *rmh)
  307. {
  308. unsigned long flags;
  309. int err;
  310. spin_lock_irqsave(&chip->lock, flags);
  311. err = vx_send_msg_nolock(chip, rmh);
  312. spin_unlock_irqrestore(&chip->lock, flags);
  313. return err;
  314. }
  315. /*
  316. * vx_send_rih_nolock - send an RIH to xilinx
  317. * @cmd: the command to send
  318. *
  319. * returns 0 if successful, or a negative error code.
  320. * the error code can be VX-specific, retrieved via vx_get_error().
  321. *
  322. * this function doesn't call spinlock at all.
  323. *
  324. * unlike RMH, no command is sent to DSP.
  325. */
  326. int vx_send_rih_nolock(struct vx_core *chip, int cmd)
  327. {
  328. int err;
  329. if (chip->chip_status & VX_STAT_IS_STALE)
  330. return -EBUSY;
  331. #if 0
  332. printk(KERN_DEBUG "send_rih: cmd = 0x%x\n", cmd);
  333. #endif
  334. if ((err = vx_reset_chk(chip)) < 0)
  335. return err;
  336. /* send the IRQ */
  337. if ((err = vx_send_irq_dsp(chip, cmd)) < 0)
  338. return err;
  339. /* Wait CHK = 1 */
  340. if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0)
  341. return err;
  342. /* If error, read RX */
  343. if (vx_inb(chip, ISR) & ISR_ERR) {
  344. if ((err = vx_wait_for_rx_full(chip)) < 0)
  345. return err;
  346. err = vx_inb(chip, RXH) << 16;
  347. err |= vx_inb(chip, RXM) << 8;
  348. err |= vx_inb(chip, RXL);
  349. return -(VX_ERR_MASK | err);
  350. }
  351. return 0;
  352. }
  353. /*
  354. * vx_send_rih - send an RIH with spinlock
  355. * @cmd: the command to send
  356. *
  357. * see vx_send_rih_nolock().
  358. */
  359. int vx_send_rih(struct vx_core *chip, int cmd)
  360. {
  361. unsigned long flags;
  362. int err;
  363. spin_lock_irqsave(&chip->lock, flags);
  364. err = vx_send_rih_nolock(chip, cmd);
  365. spin_unlock_irqrestore(&chip->lock, flags);
  366. return err;
  367. }
  368. #define END_OF_RESET_WAIT_TIME 500 /* us */
  369. /**
  370. * snd_vx_boot_xilinx - boot up the xilinx interface
  371. * @boot: the boot record to load
  372. */
  373. int snd_vx_load_boot_image(struct vx_core *chip, const struct firmware *boot)
  374. {
  375. unsigned int i;
  376. int no_fillup = vx_has_new_dsp(chip);
  377. /* check the length of boot image */
  378. snd_assert(boot->size > 0, return -EINVAL);
  379. snd_assert(boot->size % 3 == 0, return -EINVAL);
  380. #if 0
  381. {
  382. /* more strict check */
  383. unsigned int c = ((u32)boot->data[0] << 16) | ((u32)boot->data[1] << 8) | boot->data[2];
  384. snd_assert(boot->size == (c + 2) * 3, return -EINVAL);
  385. }
  386. #endif
  387. /* reset dsp */
  388. vx_reset_dsp(chip);
  389. udelay(END_OF_RESET_WAIT_TIME); /* another wait? */
  390. /* download boot strap */
  391. for (i = 0; i < 0x600; i += 3) {
  392. if (i >= boot->size) {
  393. if (no_fillup)
  394. break;
  395. if (vx_wait_isr_bit(chip, ISR_TX_EMPTY) < 0) {
  396. snd_printk(KERN_ERR "dsp boot failed at %d\n", i);
  397. return -EIO;
  398. }
  399. vx_outb(chip, TXH, 0);
  400. vx_outb(chip, TXM, 0);
  401. vx_outb(chip, TXL, 0);
  402. } else {
  403. unsigned char *image = boot->data + i;
  404. if (vx_wait_isr_bit(chip, ISR_TX_EMPTY) < 0) {
  405. snd_printk(KERN_ERR "dsp boot failed at %d\n", i);
  406. return -EIO;
  407. }
  408. vx_outb(chip, TXH, image[0]);
  409. vx_outb(chip, TXM, image[1]);
  410. vx_outb(chip, TXL, image[2]);
  411. }
  412. }
  413. return 0;
  414. }
  415. EXPORT_SYMBOL(snd_vx_load_boot_image);
  416. /*
  417. * vx_test_irq_src - query the source of interrupts
  418. *
  419. * called from irq handler only
  420. */
  421. static int vx_test_irq_src(struct vx_core *chip, unsigned int *ret)
  422. {
  423. int err;
  424. vx_init_rmh(&chip->irq_rmh, CMD_TEST_IT);
  425. spin_lock(&chip->lock);
  426. err = vx_send_msg_nolock(chip, &chip->irq_rmh);
  427. if (err < 0)
  428. *ret = 0;
  429. else
  430. *ret = chip->irq_rmh.Stat[0];
  431. spin_unlock(&chip->lock);
  432. return err;
  433. }
  434. /*
  435. * vx_interrupt - soft irq handler
  436. */
  437. static void vx_interrupt(unsigned long private_data)
  438. {
  439. struct vx_core *chip = (struct vx_core *) private_data;
  440. unsigned int events;
  441. if (chip->chip_status & VX_STAT_IS_STALE)
  442. return;
  443. if (vx_test_irq_src(chip, &events) < 0)
  444. return;
  445. #if 0
  446. if (events & 0x000800)
  447. printk(KERN_ERR "DSP Stream underrun ! IRQ events = 0x%x\n", events);
  448. #endif
  449. // printk(KERN_DEBUG "IRQ events = 0x%x\n", events);
  450. /* We must prevent any application using this DSP
  451. * and block any further request until the application
  452. * either unregisters or reloads the DSP
  453. */
  454. if (events & FATAL_DSP_ERROR) {
  455. snd_printk(KERN_ERR "vx_core: fatal DSP error!!\n");
  456. return;
  457. }
  458. /* The start on time code conditions are filled (ie the time code
  459. * received by the board is equal to one of those given to it).
  460. */
  461. if (events & TIME_CODE_EVENT_PENDING)
  462. ; /* so far, nothing to do yet */
  463. /* The frequency has changed on the board (UER mode). */
  464. if (events & FREQUENCY_CHANGE_EVENT_PENDING)
  465. vx_change_frequency(chip);
  466. /* update the pcm streams */
  467. vx_pcm_update_intr(chip, events);
  468. }
  469. /**
  470. * snd_vx_irq_handler - interrupt handler
  471. */
  472. irqreturn_t snd_vx_irq_handler(int irq, void *dev)
  473. {
  474. struct vx_core *chip = dev;
  475. if (! (chip->chip_status & VX_STAT_CHIP_INIT) ||
  476. (chip->chip_status & VX_STAT_IS_STALE))
  477. return IRQ_NONE;
  478. if (! vx_test_and_ack(chip))
  479. tasklet_hi_schedule(&chip->tq);
  480. return IRQ_HANDLED;
  481. }
  482. EXPORT_SYMBOL(snd_vx_irq_handler);
  483. /*
  484. */
  485. static void vx_reset_board(struct vx_core *chip, int cold_reset)
  486. {
  487. snd_assert(chip->ops->reset_board, return);
  488. /* current source, later sync'ed with target */
  489. chip->audio_source = VX_AUDIO_SRC_LINE;
  490. if (cold_reset) {
  491. chip->audio_source_target = chip->audio_source;
  492. chip->clock_source = INTERNAL_QUARTZ;
  493. chip->clock_mode = VX_CLOCK_MODE_AUTO;
  494. chip->freq = 48000;
  495. chip->uer_detected = VX_UER_MODE_NOT_PRESENT;
  496. chip->uer_bits = SNDRV_PCM_DEFAULT_CON_SPDIF;
  497. }
  498. chip->ops->reset_board(chip, cold_reset);
  499. vx_reset_codec(chip, cold_reset);
  500. vx_set_internal_clock(chip, chip->freq);
  501. /* Reset the DSP */
  502. vx_reset_dsp(chip);
  503. if (vx_is_pcmcia(chip)) {
  504. /* Acknowledge any pending IRQ and reset the MEMIRQ flag. */
  505. vx_test_and_ack(chip);
  506. vx_validate_irq(chip, 1);
  507. }
  508. /* init CBits */
  509. vx_set_iec958_status(chip, chip->uer_bits);
  510. }
  511. /*
  512. * proc interface
  513. */
  514. static void vx_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
  515. {
  516. struct vx_core *chip = entry->private_data;
  517. static char *audio_src_vxp[] = { "Line", "Mic", "Digital" };
  518. static char *audio_src_vx2[] = { "Analog", "Analog", "Digital" };
  519. static char *clock_mode[] = { "Auto", "Internal", "External" };
  520. static char *clock_src[] = { "Internal", "External" };
  521. static char *uer_type[] = { "Consumer", "Professional", "Not Present" };
  522. snd_iprintf(buffer, "%s\n", chip->card->longname);
  523. snd_iprintf(buffer, "Xilinx Firmware: %s\n",
  524. chip->chip_status & VX_STAT_XILINX_LOADED ? "Loaded" : "No");
  525. snd_iprintf(buffer, "Device Initialized: %s\n",
  526. chip->chip_status & VX_STAT_DEVICE_INIT ? "Yes" : "No");
  527. snd_iprintf(buffer, "DSP audio info:");
  528. if (chip->audio_info & VX_AUDIO_INFO_REAL_TIME)
  529. snd_iprintf(buffer, " realtime");
  530. if (chip->audio_info & VX_AUDIO_INFO_OFFLINE)
  531. snd_iprintf(buffer, " offline");
  532. if (chip->audio_info & VX_AUDIO_INFO_MPEG1)
  533. snd_iprintf(buffer, " mpeg1");
  534. if (chip->audio_info & VX_AUDIO_INFO_MPEG2)
  535. snd_iprintf(buffer, " mpeg2");
  536. if (chip->audio_info & VX_AUDIO_INFO_LINEAR_8)
  537. snd_iprintf(buffer, " linear8");
  538. if (chip->audio_info & VX_AUDIO_INFO_LINEAR_16)
  539. snd_iprintf(buffer, " linear16");
  540. if (chip->audio_info & VX_AUDIO_INFO_LINEAR_24)
  541. snd_iprintf(buffer, " linear24");
  542. snd_iprintf(buffer, "\n");
  543. snd_iprintf(buffer, "Input Source: %s\n", vx_is_pcmcia(chip) ?
  544. audio_src_vxp[chip->audio_source] :
  545. audio_src_vx2[chip->audio_source]);
  546. snd_iprintf(buffer, "Clock Mode: %s\n", clock_mode[chip->clock_mode]);
  547. snd_iprintf(buffer, "Clock Source: %s\n", clock_src[chip->clock_source]);
  548. snd_iprintf(buffer, "Frequency: %d\n", chip->freq);
  549. snd_iprintf(buffer, "Detected Frequency: %d\n", chip->freq_detected);
  550. snd_iprintf(buffer, "Detected UER type: %s\n", uer_type[chip->uer_detected]);
  551. snd_iprintf(buffer, "Min/Max/Cur IBL: %d/%d/%d (granularity=%d)\n",
  552. chip->ibl.min_size, chip->ibl.max_size, chip->ibl.size,
  553. chip->ibl.granularity);
  554. }
  555. static void vx_proc_init(struct vx_core *chip)
  556. {
  557. struct snd_info_entry *entry;
  558. if (! snd_card_proc_new(chip->card, "vx-status", &entry))
  559. snd_info_set_text_ops(entry, chip, vx_proc_read);
  560. }
  561. /**
  562. * snd_vx_dsp_boot - load the DSP boot
  563. */
  564. int snd_vx_dsp_boot(struct vx_core *chip, const struct firmware *boot)
  565. {
  566. int err;
  567. int cold_reset = !(chip->chip_status & VX_STAT_DEVICE_INIT);
  568. vx_reset_board(chip, cold_reset);
  569. vx_validate_irq(chip, 0);
  570. if ((err = snd_vx_load_boot_image(chip, boot)) < 0)
  571. return err;
  572. msleep(10);
  573. return 0;
  574. }
  575. EXPORT_SYMBOL(snd_vx_dsp_boot);
  576. /**
  577. * snd_vx_dsp_load - load the DSP image
  578. */
  579. int snd_vx_dsp_load(struct vx_core *chip, const struct firmware *dsp)
  580. {
  581. unsigned int i;
  582. int err;
  583. unsigned int csum = 0;
  584. unsigned char *image, *cptr;
  585. snd_assert(dsp->size % 3 == 0, return -EINVAL);
  586. vx_toggle_dac_mute(chip, 1);
  587. /* Transfert data buffer from PC to DSP */
  588. for (i = 0; i < dsp->size; i += 3) {
  589. image = dsp->data + i;
  590. /* Wait DSP ready for a new read */
  591. if ((err = vx_wait_isr_bit(chip, ISR_TX_EMPTY)) < 0) {
  592. printk("dsp loading error at position %d\n", i);
  593. return err;
  594. }
  595. cptr = image;
  596. csum ^= *cptr;
  597. csum = (csum >> 24) | (csum << 8);
  598. vx_outb(chip, TXH, *cptr++);
  599. csum ^= *cptr;
  600. csum = (csum >> 24) | (csum << 8);
  601. vx_outb(chip, TXM, *cptr++);
  602. csum ^= *cptr;
  603. csum = (csum >> 24) | (csum << 8);
  604. vx_outb(chip, TXL, *cptr++);
  605. }
  606. snd_printdd(KERN_DEBUG "checksum = 0x%08x\n", csum);
  607. msleep(200);
  608. if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0)
  609. return err;
  610. vx_toggle_dac_mute(chip, 0);
  611. vx_test_and_ack(chip);
  612. vx_validate_irq(chip, 1);
  613. return 0;
  614. }
  615. EXPORT_SYMBOL(snd_vx_dsp_load);
  616. #ifdef CONFIG_PM
  617. /*
  618. * suspend
  619. */
  620. int snd_vx_suspend(struct vx_core *chip, pm_message_t state)
  621. {
  622. unsigned int i;
  623. snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
  624. chip->chip_status |= VX_STAT_IN_SUSPEND;
  625. for (i = 0; i < chip->hw->num_codecs; i++)
  626. snd_pcm_suspend_all(chip->pcm[i]);
  627. return 0;
  628. }
  629. EXPORT_SYMBOL(snd_vx_suspend);
  630. /*
  631. * resume
  632. */
  633. int snd_vx_resume(struct vx_core *chip)
  634. {
  635. int i, err;
  636. chip->chip_status &= ~VX_STAT_CHIP_INIT;
  637. for (i = 0; i < 4; i++) {
  638. if (! chip->firmware[i])
  639. continue;
  640. err = chip->ops->load_dsp(chip, i, chip->firmware[i]);
  641. if (err < 0) {
  642. snd_printk(KERN_ERR "vx: firmware resume error at DSP %d\n", i);
  643. return -EIO;
  644. }
  645. }
  646. chip->chip_status |= VX_STAT_CHIP_INIT;
  647. chip->chip_status &= ~VX_STAT_IN_SUSPEND;
  648. snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
  649. return 0;
  650. }
  651. EXPORT_SYMBOL(snd_vx_resume);
  652. #endif
  653. /**
  654. * snd_vx_create - constructor for struct vx_core
  655. * @hw: hardware specific record
  656. *
  657. * this function allocates the instance and prepare for the hardware
  658. * initialization.
  659. *
  660. * return the instance pointer if successful, NULL in error.
  661. */
  662. struct vx_core *snd_vx_create(struct snd_card *card, struct snd_vx_hardware *hw,
  663. struct snd_vx_ops *ops,
  664. int extra_size)
  665. {
  666. struct vx_core *chip;
  667. snd_assert(card && hw && ops, return NULL);
  668. chip = kzalloc(sizeof(*chip) + extra_size, GFP_KERNEL);
  669. if (! chip) {
  670. snd_printk(KERN_ERR "vx_core: no memory\n");
  671. return NULL;
  672. }
  673. spin_lock_init(&chip->lock);
  674. spin_lock_init(&chip->irq_lock);
  675. chip->irq = -1;
  676. chip->hw = hw;
  677. chip->type = hw->type;
  678. chip->ops = ops;
  679. tasklet_init(&chip->tq, vx_interrupt, (unsigned long)chip);
  680. mutex_init(&chip->mixer_mutex);
  681. chip->card = card;
  682. card->private_data = chip;
  683. strcpy(card->driver, hw->name);
  684. sprintf(card->shortname, "Digigram %s", hw->name);
  685. vx_proc_init(chip);
  686. return chip;
  687. }
  688. EXPORT_SYMBOL(snd_vx_create);
  689. /*
  690. * module entries
  691. */
  692. static int __init alsa_vx_core_init(void)
  693. {
  694. return 0;
  695. }
  696. static void __exit alsa_vx_core_exit(void)
  697. {
  698. }
  699. module_init(alsa_vx_core_init)
  700. module_exit(alsa_vx_core_exit)