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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Auvitek AU0828 USB Bridge (Analog video support)4 *5 * Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org>6 * Copyright (C) 2005-2008 Auvitek International, Ltd.7 */8 9/* Developer Notes:10 *11 * The hardware scaler supported is unimplemented12 * AC97 audio support is unimplemented (only i2s audio mode)13 *14 */15 16#include "au0828.h"17#include "au8522.h"18 19#include <linux/module.h>20#include <linux/slab.h>21#include <linux/init.h>22#include <linux/device.h>23#include <media/v4l2-common.h>24#include <media/v4l2-mc.h>25#include <media/v4l2-ioctl.h>26#include <media/v4l2-event.h>27#include <media/tuner.h>28#include "au0828-reg.h"29 30static DEFINE_MUTEX(au0828_sysfs_lock);31 32/* ------------------------------------------------------------------33 Videobuf operations34 ------------------------------------------------------------------*/35 36static unsigned int isoc_debug;37module_param(isoc_debug, int, 0644);38MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");39 40#define au0828_isocdbg(fmt, arg...) \41do {\42 if (isoc_debug) { \43 pr_info("au0828 %s :"fmt, \44 __func__ , ##arg); \45 } \46 } while (0)47 48static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val)49{50 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)51 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val);52}53 54static inline void print_err_status(struct au0828_dev *dev,55 int packet, int status)56{57 char *errmsg = "Unknown";58 59 switch (status) {60 case -ENOENT:61 errmsg = "unlinked synchronously";62 break;63 case -ECONNRESET:64 errmsg = "unlinked asynchronously";65 break;66 case -ENOSR:67 errmsg = "Buffer error (overrun)";68 break;69 case -EPIPE:70 errmsg = "Stalled (device not responding)";71 break;72 case -EOVERFLOW:73 errmsg = "Babble (bad cable?)";74 break;75 case -EPROTO:76 errmsg = "Bit-stuff error (bad cable?)";77 break;78 case -EILSEQ:79 errmsg = "CRC/Timeout (could be anything)";80 break;81 case -ETIME:82 errmsg = "Device does not respond";83 break;84 }85 if (packet < 0) {86 au0828_isocdbg("URB status %d [%s].\n", status, errmsg);87 } else {88 au0828_isocdbg("URB packet %d, status %d [%s].\n",89 packet, status, errmsg);90 }91}92 93static int check_dev(struct au0828_dev *dev)94{95 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) {96 pr_info("v4l2 ioctl: device not present\n");97 return -ENODEV;98 }99 100 if (test_bit(DEV_MISCONFIGURED, &dev->dev_state)) {101 pr_info("v4l2 ioctl: device is misconfigured; close and open it again\n");102 return -EIO;103 }104 return 0;105}106 107/*108 * IRQ callback, called by URB callback109 */110static void au0828_irq_callback(struct urb *urb)111{112 struct au0828_dmaqueue *dma_q = urb->context;113 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);114 unsigned long flags = 0;115 int i;116 117 switch (urb->status) {118 case 0: /* success */119 case -ETIMEDOUT: /* NAK */120 break;121 case -ECONNRESET: /* kill */122 case -ENOENT:123 case -ESHUTDOWN:124 au0828_isocdbg("au0828_irq_callback called: status kill\n");125 return;126 default: /* unknown error */127 au0828_isocdbg("urb completion error %d.\n", urb->status);128 break;129 }130 131 /* Copy data from URB */132 spin_lock_irqsave(&dev->slock, flags);133 dev->isoc_ctl.isoc_copy(dev, urb);134 spin_unlock_irqrestore(&dev->slock, flags);135 136 /* Reset urb buffers */137 for (i = 0; i < urb->number_of_packets; i++) {138 urb->iso_frame_desc[i].status = 0;139 urb->iso_frame_desc[i].actual_length = 0;140 }141 urb->status = 0;142 143 urb->status = usb_submit_urb(urb, GFP_ATOMIC);144 if (urb->status) {145 au0828_isocdbg("urb resubmit failed (error=%i)\n",146 urb->status);147 }148 dev->stream_state = STREAM_ON;149}150 151/*152 * Stop and Deallocate URBs153 */154static void au0828_uninit_isoc(struct au0828_dev *dev)155{156 struct urb *urb;157 int i;158 159 au0828_isocdbg("au0828: called au0828_uninit_isoc\n");160 161 dev->isoc_ctl.nfields = -1;162 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {163 urb = dev->isoc_ctl.urb[i];164 if (urb) {165 if (!irqs_disabled())166 usb_kill_urb(urb);167 else168 usb_unlink_urb(urb);169 170 if (dev->isoc_ctl.transfer_buffer[i]) {171 usb_free_coherent(dev->usbdev,172 urb->transfer_buffer_length,173 dev->isoc_ctl.transfer_buffer[i],174 urb->transfer_dma);175 }176 usb_free_urb(urb);177 dev->isoc_ctl.urb[i] = NULL;178 }179 dev->isoc_ctl.transfer_buffer[i] = NULL;180 }181 182 kfree(dev->isoc_ctl.urb);183 kfree(dev->isoc_ctl.transfer_buffer);184 185 dev->isoc_ctl.urb = NULL;186 dev->isoc_ctl.transfer_buffer = NULL;187 dev->isoc_ctl.num_bufs = 0;188 189 dev->stream_state = STREAM_OFF;190}191 192/*193 * Allocate URBs and start IRQ194 */195static int au0828_init_isoc(struct au0828_dev *dev, int max_packets,196 int num_bufs, int max_pkt_size,197 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb))198{199 struct au0828_dmaqueue *dma_q = &dev->vidq;200 int i;201 int sb_size, pipe;202 struct urb *urb;203 int j, k;204 int rc;205 206 au0828_isocdbg("au0828: called au0828_prepare_isoc\n");207 208 dev->isoc_ctl.isoc_copy = isoc_copy;209 dev->isoc_ctl.num_bufs = num_bufs;210 211 dev->isoc_ctl.urb = kcalloc(num_bufs, sizeof(void *), GFP_KERNEL);212 if (!dev->isoc_ctl.urb) {213 au0828_isocdbg("cannot alloc memory for usb buffers\n");214 return -ENOMEM;215 }216 217 dev->isoc_ctl.transfer_buffer = kcalloc(num_bufs, sizeof(void *),218 GFP_KERNEL);219 if (!dev->isoc_ctl.transfer_buffer) {220 au0828_isocdbg("cannot allocate memory for usb transfer\n");221 kfree(dev->isoc_ctl.urb);222 return -ENOMEM;223 }224 225 dev->isoc_ctl.max_pkt_size = max_pkt_size;226 dev->isoc_ctl.buf = NULL;227 228 sb_size = max_packets * dev->isoc_ctl.max_pkt_size;229 230 /* allocate urbs and transfer buffers */231 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {232 urb = usb_alloc_urb(max_packets, GFP_KERNEL);233 if (!urb) {234 au0828_isocdbg("cannot allocate URB\n");235 au0828_uninit_isoc(dev);236 return -ENOMEM;237 }238 dev->isoc_ctl.urb[i] = urb;239 240 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev,241 sb_size, GFP_KERNEL, &urb->transfer_dma);242 if (!dev->isoc_ctl.transfer_buffer[i]) {243 au0828_isocdbg("cannot allocate transfer buffer\n");244 au0828_uninit_isoc(dev);245 return -ENOMEM;246 }247 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);248 249 pipe = usb_rcvisocpipe(dev->usbdev,250 dev->isoc_in_endpointaddr);251 252 usb_fill_int_urb(urb, dev->usbdev, pipe,253 dev->isoc_ctl.transfer_buffer[i], sb_size,254 au0828_irq_callback, dma_q, 1);255 256 urb->number_of_packets = max_packets;257 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;258 259 k = 0;260 for (j = 0; j < max_packets; j++) {261 urb->iso_frame_desc[j].offset = k;262 urb->iso_frame_desc[j].length =263 dev->isoc_ctl.max_pkt_size;264 k += dev->isoc_ctl.max_pkt_size;265 }266 }267 268 /* submit urbs and enables IRQ */269 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {270 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);271 if (rc) {272 au0828_isocdbg("submit of urb %i failed (error=%i)\n",273 i, rc);274 au0828_uninit_isoc(dev);275 return rc;276 }277 }278 279 return 0;280}281 282/*283 * Announces that a buffer were filled and request the next284 */285static inline void buffer_filled(struct au0828_dev *dev,286 struct au0828_dmaqueue *dma_q,287 struct au0828_buffer *buf)288{289 struct vb2_v4l2_buffer *vb = &buf->vb;290 struct vb2_queue *q = vb->vb2_buf.vb2_queue;291 292 /* Advice that buffer was filled */293 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field);294 295 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)296 vb->sequence = dev->frame_count++;297 else298 vb->sequence = dev->vbi_frame_count++;299 300 vb->field = V4L2_FIELD_INTERLACED;301 vb->vb2_buf.timestamp = ktime_get_ns();302 vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE);303}304 305/*306 * Identify the buffer header type and properly handles307 */308static void au0828_copy_video(struct au0828_dev *dev,309 struct au0828_dmaqueue *dma_q,310 struct au0828_buffer *buf,311 unsigned char *p,312 unsigned char *outp, unsigned long len)313{314 void *fieldstart, *startwrite, *startread;315 int linesdone, currlinedone, offset, lencopy, remain;316 int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */317 318 if (len == 0)319 return;320 321 if (dma_q->pos + len > buf->length)322 len = buf->length - dma_q->pos;323 324 startread = p;325 remain = len;326 327 /* Interlaces frame */328 if (buf->top_field)329 fieldstart = outp;330 else331 fieldstart = outp + bytesperline;332 333 linesdone = dma_q->pos / bytesperline;334 currlinedone = dma_q->pos % bytesperline;335 offset = linesdone * bytesperline * 2 + currlinedone;336 startwrite = fieldstart + offset;337 lencopy = bytesperline - currlinedone;338 lencopy = lencopy > remain ? remain : lencopy;339 340 if ((char *)startwrite + lencopy > (char *)outp + buf->length) {341 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",342 ((char *)startwrite + lencopy) -343 ((char *)outp + buf->length));344 remain = (char *)outp + buf->length - (char *)startwrite;345 lencopy = remain;346 }347 if (lencopy <= 0)348 return;349 memcpy(startwrite, startread, lencopy);350 351 remain -= lencopy;352 353 while (remain > 0) {354 startwrite += lencopy + bytesperline;355 startread += lencopy;356 if (bytesperline > remain)357 lencopy = remain;358 else359 lencopy = bytesperline;360 361 if ((char *)startwrite + lencopy > (char *)outp +362 buf->length) {363 au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",364 ((char *)startwrite + lencopy) -365 ((char *)outp + buf->length));366 lencopy = remain = (char *)outp + buf->length -367 (char *)startwrite;368 }369 if (lencopy <= 0)370 break;371 372 memcpy(startwrite, startread, lencopy);373 374 remain -= lencopy;375 }376 377 if (offset > 1440) {378 /* We have enough data to check for greenscreen */379 if (outp[0] < 0x60 && outp[1440] < 0x60)380 dev->greenscreen_detected = 1;381 }382 383 dma_q->pos += len;384}385 386/*387 * generic routine to get the next available buffer388 */389static inline void get_next_buf(struct au0828_dmaqueue *dma_q,390 struct au0828_buffer **buf)391{392 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);393 394 if (list_empty(&dma_q->active)) {395 au0828_isocdbg("No active queue to serve\n");396 dev->isoc_ctl.buf = NULL;397 *buf = NULL;398 return;399 }400 401 /* Get the next buffer */402 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);403 /* Cleans up buffer - Useful for testing for frame/URB loss */404 list_del(&(*buf)->list);405 dma_q->pos = 0;406 (*buf)->vb_buf = (*buf)->mem;407 dev->isoc_ctl.buf = *buf;408 409 return;410}411 412static void au0828_copy_vbi(struct au0828_dev *dev,413 struct au0828_dmaqueue *dma_q,414 struct au0828_buffer *buf,415 unsigned char *p,416 unsigned char *outp, unsigned long len)417{418 unsigned char *startwrite, *startread;419 int bytesperline;420 int i, j = 0;421 422 if (dev == NULL) {423 au0828_isocdbg("dev is null\n");424 return;425 }426 427 if (dma_q == NULL) {428 au0828_isocdbg("dma_q is null\n");429 return;430 }431 if (buf == NULL)432 return;433 if (p == NULL) {434 au0828_isocdbg("p is null\n");435 return;436 }437 if (outp == NULL) {438 au0828_isocdbg("outp is null\n");439 return;440 }441 442 bytesperline = dev->vbi_width;443 444 if (dma_q->pos + len > buf->length)445 len = buf->length - dma_q->pos;446 447 startread = p;448 startwrite = outp + (dma_q->pos / 2);449 450 /* Make sure the bottom field populates the second half of the frame */451 if (buf->top_field == 0)452 startwrite += bytesperline * dev->vbi_height;453 454 for (i = 0; i < len; i += 2)455 startwrite[j++] = startread[i+1];456 457 dma_q->pos += len;458}459 460 461/*462 * generic routine to get the next available VBI buffer463 */464static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,465 struct au0828_buffer **buf)466{467 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq);468 469 if (list_empty(&dma_q->active)) {470 au0828_isocdbg("No active queue to serve\n");471 dev->isoc_ctl.vbi_buf = NULL;472 *buf = NULL;473 return;474 }475 476 /* Get the next buffer */477 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);478 /* Cleans up buffer - Useful for testing for frame/URB loss */479 list_del(&(*buf)->list);480 dma_q->pos = 0;481 (*buf)->vb_buf = (*buf)->mem;482 dev->isoc_ctl.vbi_buf = *buf;483 return;484}485 486/*487 * Controls the isoc copy of each urb packet488 */489static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)490{491 struct au0828_buffer *buf;492 struct au0828_buffer *vbi_buf;493 struct au0828_dmaqueue *dma_q = urb->context;494 struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq;495 unsigned char *outp = NULL;496 unsigned char *vbioutp = NULL;497 int i, len = 0, rc = 1;498 unsigned char *p;499 unsigned char fbyte;500 unsigned int vbi_field_size;501 unsigned int remain, lencopy;502 503 if (!dev)504 return 0;505 506 if (test_bit(DEV_DISCONNECTED, &dev->dev_state) ||507 test_bit(DEV_MISCONFIGURED, &dev->dev_state))508 return 0;509 510 if (urb->status < 0) {511 print_err_status(dev, -1, urb->status);512 if (urb->status == -ENOENT)513 return 0;514 }515 516 buf = dev->isoc_ctl.buf;517 if (buf != NULL)518 outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);519 520 vbi_buf = dev->isoc_ctl.vbi_buf;521 if (vbi_buf != NULL)522 vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0);523 524 for (i = 0; i < urb->number_of_packets; i++) {525 int status = urb->iso_frame_desc[i].status;526 527 if (status < 0) {528 print_err_status(dev, i, status);529 if (urb->iso_frame_desc[i].status != -EPROTO)530 continue;531 }532 533 if (urb->iso_frame_desc[i].actual_length <= 0)534 continue;535 536 if (urb->iso_frame_desc[i].actual_length >537 dev->max_pkt_size) {538 au0828_isocdbg("packet bigger than packet size");539 continue;540 }541 542 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;543 fbyte = p[0];544 len = urb->iso_frame_desc[i].actual_length - 4;545 p += 4;546 547 if (fbyte & 0x80) {548 len -= 4;549 p += 4;550 au0828_isocdbg("Video frame %s\n",551 (fbyte & 0x40) ? "odd" : "even");552 if (fbyte & 0x40) {553 /* VBI */554 if (vbi_buf != NULL)555 buffer_filled(dev, vbi_dma_q, vbi_buf);556 vbi_get_next_buf(vbi_dma_q, &vbi_buf);557 if (vbi_buf == NULL)558 vbioutp = NULL;559 else560 vbioutp = vb2_plane_vaddr(561 &vbi_buf->vb.vb2_buf, 0);562 563 /* Video */564 if (buf != NULL)565 buffer_filled(dev, dma_q, buf);566 get_next_buf(dma_q, &buf);567 if (buf == NULL)568 outp = NULL;569 else570 outp = vb2_plane_vaddr(571 &buf->vb.vb2_buf, 0);572 573 /* As long as isoc traffic is arriving, keep574 resetting the timer */575 if (dev->vid_timeout_running)576 mod_timer(&dev->vid_timeout,577 jiffies + (HZ / 10));578 if (dev->vbi_timeout_running)579 mod_timer(&dev->vbi_timeout,580 jiffies + (HZ / 10));581 }582 583 if (buf != NULL) {584 if (fbyte & 0x40)585 buf->top_field = 1;586 else587 buf->top_field = 0;588 }589 590 if (vbi_buf != NULL) {591 if (fbyte & 0x40)592 vbi_buf->top_field = 1;593 else594 vbi_buf->top_field = 0;595 }596 597 dev->vbi_read = 0;598 vbi_dma_q->pos = 0;599 dma_q->pos = 0;600 }601 602 vbi_field_size = dev->vbi_width * dev->vbi_height * 2;603 if (dev->vbi_read < vbi_field_size) {604 remain = vbi_field_size - dev->vbi_read;605 lencopy = umin(len, remain);606 607 if (vbi_buf != NULL)608 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,609 vbioutp, len);610 611 len -= lencopy;612 p += lencopy;613 dev->vbi_read += lencopy;614 }615 616 if (dev->vbi_read >= vbi_field_size && buf != NULL)617 au0828_copy_video(dev, dma_q, buf, p, outp, len);618 }619 return rc;620}621 622void au0828_usb_v4l2_media_release(struct au0828_dev *dev)623{624#ifdef CONFIG_MEDIA_CONTROLLER625 int i;626 627 for (i = 0; i < AU0828_MAX_INPUT; i++) {628 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)629 return;630 media_device_unregister_entity(&dev->input_ent[i]);631 }632#endif633}634 635static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev)636{637 struct au0828_dev *dev =638 container_of(v4l2_dev, struct au0828_dev, v4l2_dev);639 640 v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl);641 v4l2_device_unregister(&dev->v4l2_dev);642 au0828_usb_v4l2_media_release(dev);643 au0828_usb_release(dev);644}645 646int au0828_v4l2_device_register(struct usb_interface *interface,647 struct au0828_dev *dev)648{649 int retval;650 651 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)652 return 0;653 654 /* Create the v4l2_device */655#ifdef CONFIG_MEDIA_CONTROLLER656 dev->v4l2_dev.mdev = dev->media_dev;657#endif658 retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);659 if (retval) {660 pr_err("%s() v4l2_device_register failed\n",661 __func__);662 return retval;663 }664 665 dev->v4l2_dev.release = au0828_usb_v4l2_release;666 667 /* This control handler will inherit the controls from au8522 */668 retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4);669 if (retval) {670 pr_err("%s() v4l2_ctrl_handler_init failed\n",671 __func__);672 return retval;673 }674 dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl;675 676 return 0;677}678 679static int queue_setup(struct vb2_queue *vq,680 unsigned int *nbuffers, unsigned int *nplanes,681 unsigned int sizes[], struct device *alloc_devs[])682{683 struct au0828_dev *dev = vb2_get_drv_priv(vq);684 unsigned long size = dev->height * dev->bytesperline;685 686 if (*nplanes)687 return sizes[0] < size ? -EINVAL : 0;688 *nplanes = 1;689 sizes[0] = size;690 return 0;691}692 693static int694buffer_prepare(struct vb2_buffer *vb)695{696 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);697 struct au0828_buffer *buf = container_of(vbuf,698 struct au0828_buffer, vb);699 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue);700 701 buf->length = dev->height * dev->bytesperline;702 703 if (vb2_plane_size(vb, 0) < buf->length) {704 pr_err("%s data will not fit into plane (%lu < %lu)\n",705 __func__, vb2_plane_size(vb, 0), buf->length);706 return -EINVAL;707 }708 vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length);709 return 0;710}711 712static void713buffer_queue(struct vb2_buffer *vb)714{715 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);716 struct au0828_buffer *buf = container_of(vbuf,717 struct au0828_buffer,718 vb);719 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue);720 struct au0828_dmaqueue *vidq = &dev->vidq;721 unsigned long flags = 0;722 723 buf->mem = vb2_plane_vaddr(vb, 0);724 buf->length = vb2_plane_size(vb, 0);725 726 spin_lock_irqsave(&dev->slock, flags);727 list_add_tail(&buf->list, &vidq->active);728 spin_unlock_irqrestore(&dev->slock, flags);729}730 731static int au0828_i2s_init(struct au0828_dev *dev)732{733 /* Enable i2s mode */734 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);735 return 0;736}737 738/*739 * Auvitek au0828 analog stream enable740 */741static int au0828_analog_stream_enable(struct au0828_dev *d)742{743 struct usb_interface *iface;744 int ret, h, w;745 746 dprintk(1, "au0828_analog_stream_enable called\n");747 748 if (test_bit(DEV_DISCONNECTED, &d->dev_state))749 return -ENODEV;750 751 iface = usb_ifnum_to_if(d->usbdev, 0);752 if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) {753 dprintk(1, "Changing intf#0 to alt 5\n");754 /* set au0828 interface0 to AS5 here again */755 ret = usb_set_interface(d->usbdev, 0, 5);756 if (ret < 0) {757 pr_info("Au0828 can't set alt setting to 5!\n");758 return -EBUSY;759 }760 }761 762 h = d->height / 2 + 2;763 w = d->width * 2;764 765 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);766 au0828_writereg(d, 0x106, 0x00);767 /* set x position */768 au0828_writereg(d, 0x110, 0x00);769 au0828_writereg(d, 0x111, 0x00);770 au0828_writereg(d, 0x114, w & 0xff);771 au0828_writereg(d, 0x115, w >> 8);772 /* set y position */773 au0828_writereg(d, 0x112, 0x00);774 au0828_writereg(d, 0x113, 0x00);775 au0828_writereg(d, 0x116, h & 0xff);776 au0828_writereg(d, 0x117, h >> 8);777 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);778 779 return 0;780}781 782static int au0828_analog_stream_disable(struct au0828_dev *d)783{784 dprintk(1, "au0828_analog_stream_disable called\n");785 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);786 return 0;787}788 789static void au0828_analog_stream_reset(struct au0828_dev *dev)790{791 dprintk(1, "au0828_analog_stream_reset called\n");792 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);793 mdelay(30);794 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);795}796 797/*798 * Some operations needs to stop current streaming799 */800static int au0828_stream_interrupt(struct au0828_dev *dev)801{802 dev->stream_state = STREAM_INTERRUPT;803 if (test_bit(DEV_DISCONNECTED, &dev->dev_state))804 return -ENODEV;805 return 0;806}807 808int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count)809{810 struct au0828_dev *dev = vb2_get_drv_priv(vq);811 int rc = 0;812 813 dprintk(1, "au0828_start_analog_streaming called %d\n",814 dev->streaming_users);815 816 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)817 dev->frame_count = 0;818 else819 dev->vbi_frame_count = 0;820 821 if (dev->streaming_users == 0) {822 /* If we were doing ac97 instead of i2s, it would go here...*/823 au0828_i2s_init(dev);824 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,825 AU0828_MAX_ISO_BUFS, dev->max_pkt_size,826 au0828_isoc_copy);827 if (rc < 0) {828 pr_info("au0828_init_isoc failed\n");829 return rc;830 }831 832 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 1);833 834 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {835 dev->vid_timeout_running = 1;836 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));837 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) {838 dev->vbi_timeout_running = 1;839 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));840 }841 }842 dev->streaming_users++;843 return rc;844}845 846static void au0828_stop_streaming(struct vb2_queue *vq)847{848 struct au0828_dev *dev = vb2_get_drv_priv(vq);849 struct au0828_dmaqueue *vidq = &dev->vidq;850 unsigned long flags = 0;851 852 dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users);853 854 if (dev->streaming_users-- == 1) {855 au0828_uninit_isoc(dev);856 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);857 }858 859 dev->vid_timeout_running = 0;860 del_timer_sync(&dev->vid_timeout);861 862 spin_lock_irqsave(&dev->slock, flags);863 if (dev->isoc_ctl.buf != NULL) {864 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf,865 VB2_BUF_STATE_ERROR);866 dev->isoc_ctl.buf = NULL;867 }868 while (!list_empty(&vidq->active)) {869 struct au0828_buffer *buf;870 871 buf = list_entry(vidq->active.next, struct au0828_buffer, list);872 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);873 list_del(&buf->list);874 }875 spin_unlock_irqrestore(&dev->slock, flags);876}877 878void au0828_stop_vbi_streaming(struct vb2_queue *vq)879{880 struct au0828_dev *dev = vb2_get_drv_priv(vq);881 struct au0828_dmaqueue *vbiq = &dev->vbiq;882 unsigned long flags = 0;883 884 dprintk(1, "au0828_stop_vbi_streaming called %d\n",885 dev->streaming_users);886 887 if (dev->streaming_users-- == 1) {888 au0828_uninit_isoc(dev);889 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);890 }891 892 spin_lock_irqsave(&dev->slock, flags);893 if (dev->isoc_ctl.vbi_buf != NULL) {894 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf,895 VB2_BUF_STATE_ERROR);896 dev->isoc_ctl.vbi_buf = NULL;897 }898 while (!list_empty(&vbiq->active)) {899 struct au0828_buffer *buf;900 901 buf = list_entry(vbiq->active.next, struct au0828_buffer, list);902 list_del(&buf->list);903 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);904 }905 spin_unlock_irqrestore(&dev->slock, flags);906 907 dev->vbi_timeout_running = 0;908 del_timer_sync(&dev->vbi_timeout);909}910 911static const struct vb2_ops au0828_video_qops = {912 .queue_setup = queue_setup,913 .buf_prepare = buffer_prepare,914 .buf_queue = buffer_queue,915 .prepare_streaming = v4l_vb2q_enable_media_source,916 .start_streaming = au0828_start_analog_streaming,917 .stop_streaming = au0828_stop_streaming,918 .wait_prepare = vb2_ops_wait_prepare,919 .wait_finish = vb2_ops_wait_finish,920};921 922/* ------------------------------------------------------------------923 V4L2 interface924 ------------------------------------------------------------------*/925/*926 * au0828_analog_unregister927 * unregister v4l2 devices928 */929int au0828_analog_unregister(struct au0828_dev *dev)930{931 dprintk(1, "au0828_analog_unregister called\n");932 933 /* No analog TV */934 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)935 return 0;936 937 mutex_lock(&au0828_sysfs_lock);938 vb2_video_unregister_device(&dev->vdev);939 vb2_video_unregister_device(&dev->vbi_dev);940 mutex_unlock(&au0828_sysfs_lock);941 942 v4l2_device_disconnect(&dev->v4l2_dev);943 v4l2_device_put(&dev->v4l2_dev);944 945 return 1;946}947 948/* This function ensures that video frames continue to be delivered even if949 the ITU-656 input isn't receiving any data (thereby preventing applications950 such as tvtime from hanging) */951static void au0828_vid_buffer_timeout(struct timer_list *t)952{953 struct au0828_dev *dev = from_timer(dev, t, vid_timeout);954 struct au0828_dmaqueue *dma_q = &dev->vidq;955 struct au0828_buffer *buf;956 unsigned char *vid_data;957 unsigned long flags = 0;958 959 spin_lock_irqsave(&dev->slock, flags);960 961 buf = dev->isoc_ctl.buf;962 if (buf != NULL) {963 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);964 memset(vid_data, 0x00, buf->length); /* Blank green frame */965 buffer_filled(dev, dma_q, buf);966 }967 get_next_buf(dma_q, &buf);968 969 if (dev->vid_timeout_running == 1)970 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));971 972 spin_unlock_irqrestore(&dev->slock, flags);973}974 975static void au0828_vbi_buffer_timeout(struct timer_list *t)976{977 struct au0828_dev *dev = from_timer(dev, t, vbi_timeout);978 struct au0828_dmaqueue *dma_q = &dev->vbiq;979 struct au0828_buffer *buf;980 unsigned char *vbi_data;981 unsigned long flags = 0;982 983 spin_lock_irqsave(&dev->slock, flags);984 985 buf = dev->isoc_ctl.vbi_buf;986 if (buf != NULL) {987 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);988 memset(vbi_data, 0x00, buf->length);989 buffer_filled(dev, dma_q, buf);990 }991 vbi_get_next_buf(dma_q, &buf);992 993 if (dev->vbi_timeout_running == 1)994 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));995 spin_unlock_irqrestore(&dev->slock, flags);996}997 998static int au0828_v4l2_open(struct file *filp)999{1000 struct au0828_dev *dev = video_drvdata(filp);1001 int ret;1002 1003 dprintk(1,1004 "%s called std_set %d dev_state %ld stream users %d users %d\n",1005 __func__, dev->std_set_in_tuner_core, dev->dev_state,1006 dev->streaming_users, dev->users);1007 1008 if (mutex_lock_interruptible(&dev->lock))1009 return -ERESTARTSYS;1010 1011 ret = v4l2_fh_open(filp);1012 if (ret) {1013 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n",1014 __func__, ret);1015 mutex_unlock(&dev->lock);1016 return ret;1017 }1018 1019 if (dev->users == 0) {1020 au0828_analog_stream_enable(dev);1021 au0828_analog_stream_reset(dev);1022 dev->stream_state = STREAM_OFF;1023 set_bit(DEV_INITIALIZED, &dev->dev_state);1024 }1025 dev->users++;1026 mutex_unlock(&dev->lock);1027 return ret;1028}1029 1030static int au0828_v4l2_close(struct file *filp)1031{1032 int ret;1033 struct au0828_dev *dev = video_drvdata(filp);1034 struct video_device *vdev = video_devdata(filp);1035 1036 dprintk(1,1037 "%s called std_set %d dev_state %ld stream users %d users %d\n",1038 __func__, dev->std_set_in_tuner_core, dev->dev_state,1039 dev->streaming_users, dev->users);1040 1041 mutex_lock(&dev->lock);1042 if (vdev->vfl_type == VFL_TYPE_VIDEO && dev->vid_timeout_running) {1043 /* Cancel timeout thread in case they didn't call streamoff */1044 dev->vid_timeout_running = 0;1045 del_timer_sync(&dev->vid_timeout);1046 } else if (vdev->vfl_type == VFL_TYPE_VBI &&1047 dev->vbi_timeout_running) {1048 /* Cancel timeout thread in case they didn't call streamoff */1049 dev->vbi_timeout_running = 0;1050 del_timer_sync(&dev->vbi_timeout);1051 }1052 1053 if (test_bit(DEV_DISCONNECTED, &dev->dev_state))1054 goto end;1055 1056 if (dev->users == 1) {1057 /*1058 * Avoid putting tuner in sleep if DVB or ALSA are1059 * streaming.1060 *1061 * On most USB devices like au0828 the tuner can1062 * be safely put in sleep state here if ALSA isn't1063 * streaming. Exceptions are some very old USB tuner1064 * models such as em28xx-based WinTV USB2 which have1065 * a separate audio output jack. The devices that have1066 * a separate audio output jack have analog tuners,1067 * like Philips FM1236. Those devices are always on,1068 * so the s_power callback are silently ignored.1069 * So, the current logic here does the following:1070 * Disable (put tuner to sleep) when1071 * - ALSA and DVB aren't streaming.1072 * - the last V4L2 file handler is closed.1073 *1074 * FIXME:1075 *1076 * Additionally, this logic could be improved to1077 * disable the media source if the above conditions1078 * are met and if the device:1079 * - doesn't have a separate audio out plug (or1080 * - doesn't use a silicon tuner like xc2028/3028/4000/5000).1081 *1082 * Once this additional logic is in place, a callback1083 * is needed to enable the media source and power on1084 * the tuner, for radio to work.1085 */1086 ret = v4l_enable_media_source(vdev);1087 if (ret == 0)1088 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner,1089 standby);1090 dev->std_set_in_tuner_core = 0;1091 1092 /* When close the device, set the usb intf0 into alt0 to free1093 USB bandwidth */1094 ret = usb_set_interface(dev->usbdev, 0, 0);1095 if (ret < 0)1096 pr_info("Au0828 can't set alternate to 0!\n");1097 }1098end:1099 _vb2_fop_release(filp, NULL);1100 dev->users--;1101 mutex_unlock(&dev->lock);1102 return 0;1103}1104 1105/* Must be called with dev->lock held */1106static void au0828_init_tuner(struct au0828_dev *dev)1107{1108 struct v4l2_frequency f = {1109 .frequency = dev->ctrl_freq,1110 .type = V4L2_TUNER_ANALOG_TV,1111 };1112 1113 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,1114 dev->std_set_in_tuner_core, dev->dev_state);1115 1116 if (dev->std_set_in_tuner_core)1117 return;1118 dev->std_set_in_tuner_core = 1;1119 i2c_gate_ctrl(dev, 1);1120 /* If we've never sent the standard in tuner core, do so now.1121 We don't do this at device probe because we don't want to1122 incur the cost of a firmware load */1123 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std);1124 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);1125 i2c_gate_ctrl(dev, 0);1126}1127 1128static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,1129 struct v4l2_format *format)1130{1131 int ret;1132 int width = format->fmt.pix.width;1133 int height = format->fmt.pix.height;1134 1135 /* If they are demanding a format other than the one we support,1136 bail out (tvtime asks for UYVY and then retries with YUYV) */1137 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)1138 return -EINVAL;1139 1140 /* format->fmt.pix.width only support 720 and height 480 */1141 if (width != 720)1142 width = 720;1143 if (height != 480)1144 height = 480;1145 1146 format->fmt.pix.width = width;1147 format->fmt.pix.height = height;1148 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;1149 format->fmt.pix.bytesperline = width * 2;1150 format->fmt.pix.sizeimage = width * height * 2;1151 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;1152 format->fmt.pix.field = V4L2_FIELD_INTERLACED;1153 1154 if (cmd == VIDIOC_TRY_FMT)1155 return 0;1156 1157 /* maybe set new image format, driver current only support 720*480 */1158 dev->width = width;1159 dev->height = height;1160 dev->frame_size = width * height * 2;1161 dev->field_size = width * height;1162 dev->bytesperline = width * 2;1163 1164 if (dev->stream_state == STREAM_ON) {1165 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");1166 ret = au0828_stream_interrupt(dev);1167 if (ret != 0) {1168 dprintk(1, "error interrupting video stream!\n");1169 return ret;1170 }1171 }1172 1173 au0828_analog_stream_enable(dev);1174 1175 return 0;1176}1177 1178static int vidioc_querycap(struct file *file, void *priv,1179 struct v4l2_capability *cap)1180{1181 struct au0828_dev *dev = video_drvdata(file);1182 1183 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,1184 dev->std_set_in_tuner_core, dev->dev_state);1185 1186 strscpy(cap->driver, "au0828", sizeof(cap->driver));1187 strscpy(cap->card, dev->board.name, sizeof(cap->card));1188 usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info));1189 1190 /* set the device capabilities */1191 cap->capabilities =1192 V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |1193 V4L2_CAP_TUNER | V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE |1194 V4L2_CAP_DEVICE_CAPS;1195 return 0;1196}1197 1198static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,1199 struct v4l2_fmtdesc *f)1200{1201 if (f->index)1202 return -EINVAL;1203 1204 dprintk(1, "%s called\n", __func__);1205 1206 f->pixelformat = V4L2_PIX_FMT_UYVY;1207 1208 return 0;1209}1210 1211static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,1212 struct v4l2_format *f)1213{1214 struct au0828_dev *dev = video_drvdata(file);1215 1216 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,1217 dev->std_set_in_tuner_core, dev->dev_state);1218 1219 f->fmt.pix.width = dev->width;1220 f->fmt.pix.height = dev->height;1221 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;1222 f->fmt.pix.bytesperline = dev->bytesperline;1223 f->fmt.pix.sizeimage = dev->frame_size;1224 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */1225 f->fmt.pix.field = V4L2_FIELD_INTERLACED;1226 return 0;1227}1228 1229static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,1230 struct v4l2_format *f)1231{1232 struct au0828_dev *dev = video_drvdata(file);1233 1234 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,1235 dev->std_set_in_tuner_core, dev->dev_state);1236 1237 return au0828_set_format(dev, VIDIOC_TRY_FMT, f);1238}1239 1240static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,1241 struct v4l2_format *f)1242{1243 struct au0828_dev *dev = video_drvdata(file);1244 int rc;1245 1246 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,1247 dev->std_set_in_tuner_core, dev->dev_state);1248 1249 rc = check_dev(dev);1250 if (rc < 0)1251 return rc;1252 1253 if (vb2_is_busy(&dev->vb_vidq)) {1254 pr_info("%s queue busy\n", __func__);1255 rc = -EBUSY;1256 goto out;1257 }1258 1259 rc = au0828_set_format(dev, VIDIOC_S_FMT, f);1260out:1261 return rc;1262}1263 1264static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)1265{1266 struct au0828_dev *dev = video_drvdata(file);1267 1268 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,1269 dev->std_set_in_tuner_core, dev->dev_state);1270 1271 if (norm == dev->std)1272 return 0;1273 1274 if (dev->streaming_users > 0)1275 return -EBUSY;1276 1277 dev->std = norm;1278 1279 au0828_init_tuner(dev);1280 1281 i2c_gate_ctrl(dev, 1);1282 1283 /*1284 * FIXME: when we support something other than 60Hz standards,1285 * we are going to have to make the au0828 bridge adjust the size1286 * of its capture buffer, which is currently hardcoded at 720x4801287 */1288 1289 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm);1290 1291 i2c_gate_ctrl(dev, 0);1292 1293 return 0;1294}1295 1296static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)1297{1298 struct au0828_dev *dev = video_drvdata(file);1299 1300 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,1301 dev->std_set_in_tuner_core, dev->dev_state);1302 1303 *norm = dev->std;1304 return 0;1305}1306 1307static int vidioc_enum_input(struct file *file, void *priv,1308 struct v4l2_input *input)1309{1310 struct au0828_dev *dev = video_drvdata(file);1311 unsigned int tmp;1312 1313 static const char *inames[] = {1314 [AU0828_VMUX_UNDEFINED] = "Undefined",1315 [AU0828_VMUX_COMPOSITE] = "Composite",1316 [AU0828_VMUX_SVIDEO] = "S-Video",1317 [AU0828_VMUX_CABLE] = "Cable TV",1318 [AU0828_VMUX_TELEVISION] = "Television",1319 [AU0828_VMUX_DVB] = "DVB",1320 };1321 1322 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,1323 dev->std_set_in_tuner_core, dev->dev_state);1324 1325 tmp = input->index;1326 1327 if (tmp >= AU0828_MAX_INPUT)1328 return -EINVAL;1329 if (AUVI_INPUT(tmp).type == 0)1330 return -EINVAL;1331 1332 input->index = tmp;1333 strscpy(input->name, inames[AUVI_INPUT(tmp).type], sizeof(input->name));1334 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||1335 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) {1336 input->type |= V4L2_INPUT_TYPE_TUNER;1337 input->audioset = 1;1338 } else {1339 input->type |= V4L2_INPUT_TYPE_CAMERA;1340 input->audioset = 2;1341 }1342 1343 input->std = dev->vdev.tvnorms;1344 1345 return 0;1346}1347 1348static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)1349{1350 struct au0828_dev *dev = video_drvdata(file);1351 1352 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,1353 dev->std_set_in_tuner_core, dev->dev_state);1354 1355 *i = dev->ctrl_input;1356 return 0;1357}1358 1359static void au0828_s_input(struct au0828_dev *dev, int index)1360{1361 int i;1362 1363 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,1364 dev->std_set_in_tuner_core, dev->dev_state);1365 1366 switch (AUVI_INPUT(index).type) {1367 case AU0828_VMUX_SVIDEO:1368 dev->input_type = AU0828_VMUX_SVIDEO;1369 dev->ctrl_ainput = 1;1370 break;1371 case AU0828_VMUX_COMPOSITE:1372 dev->input_type = AU0828_VMUX_COMPOSITE;1373 dev->ctrl_ainput = 1;1374 break;1375 case AU0828_VMUX_TELEVISION:1376 dev->input_type = AU0828_VMUX_TELEVISION;1377 dev->ctrl_ainput = 0;1378 break;1379 default:1380 dprintk(1, "unknown input type set [%d]\n",1381 AUVI_INPUT(index).type);1382 return;1383 }1384 1385 dev->ctrl_input = index;1386 1387 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,1388 AUVI_INPUT(index).vmux, 0, 0);1389 1390 for (i = 0; i < AU0828_MAX_INPUT; i++) {1391 int enable = 0;1392 if (AUVI_INPUT(i).audio_setup == NULL)1393 continue;1394 1395 if (i == index)1396 enable = 1;1397 else1398 enable = 0;1399 if (enable) {1400 (AUVI_INPUT(i).audio_setup)(dev, enable);1401 } else {1402 /* Make sure we leave it turned on if some1403 other input is routed to this callback */1404 if ((AUVI_INPUT(i).audio_setup) !=1405 ((AUVI_INPUT(index).audio_setup))) {1406 (AUVI_INPUT(i).audio_setup)(dev, enable);1407 }1408 }1409 }1410 1411 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,1412 AUVI_INPUT(index).amux, 0, 0);1413}1414 1415static int vidioc_s_input(struct file *file, void *priv, unsigned int index)1416{1417 struct au0828_dev *dev = video_drvdata(file);1418 struct video_device *vfd = video_devdata(file);1419 1420 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,1421 index);1422 if (index >= AU0828_MAX_INPUT)1423 return -EINVAL;1424 if (AUVI_INPUT(index).type == 0)1425 return -EINVAL;1426 1427 if (dev->ctrl_input == index)1428 return 0;1429 1430 au0828_s_input(dev, index);1431 1432 /*1433 * Input has been changed. Disable the media source1434 * associated with the old input and enable source1435 * for the newly set input1436 */1437 v4l_disable_media_source(vfd);1438 return v4l_enable_media_source(vfd);1439}1440 1441static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)1442{1443 if (a->index > 1)1444 return -EINVAL;1445 1446 dprintk(1, "%s called\n", __func__);1447 1448 if (a->index == 0)1449 strscpy(a->name, "Television", sizeof(a->name));1450 else1451 strscpy(a->name, "Line in", sizeof(a->name));1452 1453 a->capability = V4L2_AUDCAP_STEREO;1454 return 0;1455}1456 1457static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)1458{1459 struct au0828_dev *dev = video_drvdata(file);1460 1461 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,1462 dev->std_set_in_tuner_core, dev->dev_state);1463 1464 a->index = dev->ctrl_ainput;1465 if (a->index == 0)1466 strscpy(a->name, "Television", sizeof(a->name));1467 else1468 strscpy(a->name, "Line in", sizeof(a->name));1469 1470 a->capability = V4L2_AUDCAP_STEREO;1471 return 0;1472}1473 1474static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)1475{1476 struct au0828_dev *dev = video_drvdata(file);1477 1478 if (a->index != dev->ctrl_ainput)1479 return -EINVAL;1480 1481 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,1482 dev->std_set_in_tuner_core, dev->dev_state);1483 return 0;1484}1485 1486static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)1487{1488 struct au0828_dev *dev = video_drvdata(file);1489 struct video_device *vfd = video_devdata(file);1490 int ret;1491 1492 if (t->index != 0)1493 return -EINVAL;1494 1495 ret = v4l_enable_media_source(vfd);1496 if (ret)1497 return ret;1498 1499 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,1500 dev->std_set_in_tuner_core, dev->dev_state);1501 1502 strscpy(t->name, "Auvitek tuner", sizeof(t->name));1503 1504 au0828_init_tuner(dev);1505 i2c_gate_ctrl(dev, 1);1506 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);1507 i2c_gate_ctrl(dev, 0);1508 return 0;1509}1510 1511static int vidioc_s_tuner(struct file *file, void *priv,1512 const struct v4l2_tuner *t)1513{1514 struct au0828_dev *dev = video_drvdata(file);1515 1516 if (t->index != 0)1517 return -EINVAL;1518 1519 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,1520 dev->std_set_in_tuner_core, dev->dev_state);1521 1522 au0828_init_tuner(dev);1523 i2c_gate_ctrl(dev, 1);1524 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);1525 i2c_gate_ctrl(dev, 0);1526 1527 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,1528 t->afc);1529 1530 return 0;1531 1532}1533 1534static int vidioc_g_frequency(struct file *file, void *priv,1535 struct v4l2_frequency *freq)1536{1537 struct au0828_dev *dev = video_drvdata(file);1538 1539 if (freq->tuner != 0)1540 return -EINVAL;1541 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,1542 dev->std_set_in_tuner_core, dev->dev_state);1543 freq->frequency = dev->ctrl_freq;1544 return 0;1545}1546 1547static int vidioc_s_frequency(struct file *file, void *priv,1548 const struct v4l2_frequency *freq)1549{1550 struct au0828_dev *dev = video_drvdata(file);1551 struct v4l2_frequency new_freq = *freq;1552 1553 if (freq->tuner != 0)1554 return -EINVAL;1555 1556 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,1557 dev->std_set_in_tuner_core, dev->dev_state);1558 1559 au0828_init_tuner(dev);1560 i2c_gate_ctrl(dev, 1);1561 1562 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);1563 /* Get the actual set (and possibly clamped) frequency */1564 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);1565 dev->ctrl_freq = new_freq.frequency;1566 1567 i2c_gate_ctrl(dev, 0);1568 1569 au0828_analog_stream_reset(dev);1570 1571 return 0;1572}1573 1574 1575/* RAW VBI ioctls */1576 1577static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,1578 struct v4l2_format *format)1579{1580 struct au0828_dev *dev = video_drvdata(file);1581 1582 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,1583 dev->std_set_in_tuner_core, dev->dev_state);1584 1585 format->fmt.vbi.samples_per_line = dev->vbi_width;1586 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;1587 format->fmt.vbi.offset = 0;1588 format->fmt.vbi.flags = 0;1589 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;1590 1591 format->fmt.vbi.count[0] = dev->vbi_height;1592 format->fmt.vbi.count[1] = dev->vbi_height;1593 format->fmt.vbi.start[0] = 21;1594 format->fmt.vbi.start[1] = 284;1595 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));1596 1597 return 0;1598}1599 1600static int vidioc_g_pixelaspect(struct file *file, void *priv,1601 int type, struct v4l2_fract *f)1602{1603 struct au0828_dev *dev = video_drvdata(file);1604 1605 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)1606 return -EINVAL;1607 1608 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,1609 dev->std_set_in_tuner_core, dev->dev_state);1610 1611 f->numerator = 54;1612 f->denominator = 59;1613 1614 return 0;1615}1616 1617static int vidioc_g_selection(struct file *file, void *priv,1618 struct v4l2_selection *s)1619{1620 struct au0828_dev *dev = video_drvdata(file);1621 1622 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)1623 return -EINVAL;1624 1625 switch (s->target) {1626 case V4L2_SEL_TGT_CROP_BOUNDS:1627 case V4L2_SEL_TGT_CROP_DEFAULT:1628 s->r.left = 0;1629 s->r.top = 0;1630 s->r.width = dev->width;1631 s->r.height = dev->height;1632 break;1633 default:1634 return -EINVAL;1635 }1636 return 0;1637}1638 1639#ifdef CONFIG_VIDEO_ADV_DEBUG1640static int vidioc_g_register(struct file *file, void *priv,1641 struct v4l2_dbg_register *reg)1642{1643 struct au0828_dev *dev = video_drvdata(file);1644 1645 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,1646 dev->std_set_in_tuner_core, dev->dev_state);1647 1648 reg->val = au0828_read(dev, reg->reg);1649 reg->size = 1;1650 return 0;1651}1652 1653static int vidioc_s_register(struct file *file, void *priv,1654 const struct v4l2_dbg_register *reg)1655{1656 struct au0828_dev *dev = video_drvdata(file);1657 1658 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,1659 dev->std_set_in_tuner_core, dev->dev_state);1660 1661 return au0828_writereg(dev, reg->reg, reg->val);1662}1663#endif1664 1665static int vidioc_log_status(struct file *file, void *fh)1666{1667 struct video_device *vdev = video_devdata(file);1668 1669 dprintk(1, "%s called\n", __func__);1670 1671 v4l2_ctrl_log_status(file, fh);1672 v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);1673 return 0;1674}1675 1676void au0828_v4l2_suspend(struct au0828_dev *dev)1677{1678 struct urb *urb;1679 int i;1680 1681 pr_info("stopping V4L2\n");1682 1683 if (dev->stream_state == STREAM_ON) {1684 pr_info("stopping V4L2 active URBs\n");1685 au0828_analog_stream_disable(dev);1686 /* stop urbs */1687 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {1688 urb = dev->isoc_ctl.urb[i];1689 if (urb) {1690 if (!irqs_disabled())1691 usb_kill_urb(urb);1692 else1693 usb_unlink_urb(urb);1694 }1695 }1696 }1697 1698 if (dev->vid_timeout_running)1699 del_timer_sync(&dev->vid_timeout);1700 if (dev->vbi_timeout_running)1701 del_timer_sync(&dev->vbi_timeout);1702}1703 1704void au0828_v4l2_resume(struct au0828_dev *dev)1705{1706 int i, rc;1707 1708 pr_info("restarting V4L2\n");1709 1710 if (dev->stream_state == STREAM_ON) {1711 au0828_stream_interrupt(dev);1712 au0828_init_tuner(dev);1713 }1714 1715 if (dev->vid_timeout_running)1716 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));1717 if (dev->vbi_timeout_running)1718 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));1719 1720 /* If we were doing ac97 instead of i2s, it would go here...*/1721 au0828_i2s_init(dev);1722 1723 au0828_analog_stream_enable(dev);1724 1725 if (!(dev->stream_state == STREAM_ON)) {1726 au0828_analog_stream_reset(dev);1727 /* submit urbs */1728 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {1729 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);1730 if (rc) {1731 au0828_isocdbg("submit of urb %i failed (error=%i)\n",1732 i, rc);1733 au0828_uninit_isoc(dev);1734 }1735 }1736 }1737}1738 1739static const struct v4l2_file_operations au0828_v4l_fops = {1740 .owner = THIS_MODULE,1741 .open = au0828_v4l2_open,1742 .release = au0828_v4l2_close,1743 .read = vb2_fop_read,1744 .poll = vb2_fop_poll,1745 .mmap = vb2_fop_mmap,1746 .unlocked_ioctl = video_ioctl2,1747};1748 1749static const struct v4l2_ioctl_ops video_ioctl_ops = {1750 .vidioc_querycap = vidioc_querycap,1751 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,1752 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,1753 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,1754 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,1755 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,1756 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,1757 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,1758 .vidioc_enumaudio = vidioc_enumaudio,1759 .vidioc_g_audio = vidioc_g_audio,1760 .vidioc_s_audio = vidioc_s_audio,1761 .vidioc_g_pixelaspect = vidioc_g_pixelaspect,1762 .vidioc_g_selection = vidioc_g_selection,1763 1764 .vidioc_reqbufs = vb2_ioctl_reqbufs,1765 .vidioc_create_bufs = vb2_ioctl_create_bufs,1766 .vidioc_prepare_buf = vb2_ioctl_prepare_buf,1767 .vidioc_querybuf = vb2_ioctl_querybuf,1768 .vidioc_qbuf = vb2_ioctl_qbuf,1769 .vidioc_dqbuf = vb2_ioctl_dqbuf,1770 .vidioc_expbuf = vb2_ioctl_expbuf,1771 1772 .vidioc_s_std = vidioc_s_std,1773 .vidioc_g_std = vidioc_g_std,1774 .vidioc_enum_input = vidioc_enum_input,1775 .vidioc_g_input = vidioc_g_input,1776 .vidioc_s_input = vidioc_s_input,1777 1778 .vidioc_streamon = vb2_ioctl_streamon,1779 .vidioc_streamoff = vb2_ioctl_streamoff,1780 1781 .vidioc_g_tuner = vidioc_g_tuner,1782 .vidioc_s_tuner = vidioc_s_tuner,1783 .vidioc_g_frequency = vidioc_g_frequency,1784 .vidioc_s_frequency = vidioc_s_frequency,1785#ifdef CONFIG_VIDEO_ADV_DEBUG1786 .vidioc_g_register = vidioc_g_register,1787 .vidioc_s_register = vidioc_s_register,1788#endif1789 .vidioc_log_status = vidioc_log_status,1790 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,1791 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,1792};1793 1794static const struct video_device au0828_video_template = {1795 .fops = &au0828_v4l_fops,1796 .release = video_device_release_empty,1797 .ioctl_ops = &video_ioctl_ops,1798 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M,1799};1800 1801static int au0828_vb2_setup(struct au0828_dev *dev)1802{1803 int rc;1804 struct vb2_queue *q;1805 1806 /* Setup Videobuf2 for Video capture */1807 q = &dev->vb_vidq;1808 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;1809 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;1810 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;1811 q->drv_priv = dev;1812 q->buf_struct_size = sizeof(struct au0828_buffer);1813 q->ops = &au0828_video_qops;1814 q->mem_ops = &vb2_vmalloc_memops;1815 1816 rc = vb2_queue_init(q);1817 if (rc < 0)1818 return rc;1819 1820 /* Setup Videobuf2 for VBI capture */1821 q = &dev->vb_vbiq;1822 q->type = V4L2_BUF_TYPE_VBI_CAPTURE;1823 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;1824 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;1825 q->drv_priv = dev;1826 q->buf_struct_size = sizeof(struct au0828_buffer);1827 q->ops = &au0828_vbi_qops;1828 q->mem_ops = &vb2_vmalloc_memops;1829 1830 rc = vb2_queue_init(q);1831 if (rc < 0)1832 return rc;1833 1834 return 0;1835}1836 1837static void au0828_analog_create_entities(struct au0828_dev *dev)1838{1839#if defined(CONFIG_MEDIA_CONTROLLER)1840 static const char * const inames[] = {1841 [AU0828_VMUX_COMPOSITE] = "Composite",1842 [AU0828_VMUX_SVIDEO] = "S-Video",1843 [AU0828_VMUX_CABLE] = "Cable TV",1844 [AU0828_VMUX_TELEVISION] = "Television",1845 [AU0828_VMUX_DVB] = "DVB",1846 };1847 int ret, i;1848 1849 /* Initialize Video and VBI pads */1850 dev->video_pad.flags = MEDIA_PAD_FL_SINK;1851 ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad);1852 if (ret < 0)1853 pr_err("failed to initialize video media entity!\n");1854 1855 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;1856 ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad);1857 if (ret < 0)1858 pr_err("failed to initialize vbi media entity!\n");1859 1860 /* Create entities for each input connector */1861 for (i = 0; i < AU0828_MAX_INPUT; i++) {1862 struct media_entity *ent = &dev->input_ent[i];1863 1864 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)1865 break;1866 1867 ent->name = inames[AUVI_INPUT(i).type];1868 ent->flags = MEDIA_ENT_FL_CONNECTOR;1869 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;1870 1871 switch (AUVI_INPUT(i).type) {1872 case AU0828_VMUX_COMPOSITE:1873 ent->function = MEDIA_ENT_F_CONN_COMPOSITE;1874 break;1875 case AU0828_VMUX_SVIDEO:1876 ent->function = MEDIA_ENT_F_CONN_SVIDEO;1877 break;1878 case AU0828_VMUX_CABLE:1879 case AU0828_VMUX_TELEVISION:1880 case AU0828_VMUX_DVB:1881 default: /* Just to shut up a warning */1882 ent->function = MEDIA_ENT_F_CONN_RF;1883 break;1884 }1885 1886 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);1887 if (ret < 0)1888 pr_err("failed to initialize input pad[%d]!\n", i);1889 1890 ret = media_device_register_entity(dev->media_dev, ent);1891 if (ret < 0)1892 pr_err("failed to register input entity %d!\n", i);1893 }1894#endif1895}1896 1897/**************************************************************************/1898 1899int au0828_analog_register(struct au0828_dev *dev,1900 struct usb_interface *interface)1901{1902 int retval = -ENOMEM;1903 struct usb_host_interface *iface_desc;1904 struct usb_endpoint_descriptor *endpoint;1905 int i, ret;1906 1907 dprintk(1, "au0828_analog_register called for intf#%d!\n",1908 interface->cur_altsetting->desc.bInterfaceNumber);1909 1910 /* No analog TV */1911 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)1912 return 0;1913 1914 /* set au0828 usb interface0 to as5 */1915 retval = usb_set_interface(dev->usbdev,1916 interface->cur_altsetting->desc.bInterfaceNumber, 5);1917 if (retval != 0) {1918 pr_info("Failure setting usb interface0 to as5\n");1919 return retval;1920 }1921 1922 /* Figure out which endpoint has the isoc interface */1923 iface_desc = interface->cur_altsetting;1924 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {1925 endpoint = &iface_desc->endpoint[i].desc;1926 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)1927 == USB_DIR_IN) &&1928 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)1929 == USB_ENDPOINT_XFER_ISOC)) {1930 1931 /* we find our isoc in endpoint */1932 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);1933 dev->max_pkt_size = (tmp & 0x07ff) *1934 (((tmp & 0x1800) >> 11) + 1);1935 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;1936 dprintk(1,1937 "Found isoc endpoint 0x%02x, max size = %d\n",1938 dev->isoc_in_endpointaddr, dev->max_pkt_size);1939 }1940 }1941 if (!(dev->isoc_in_endpointaddr)) {1942 pr_info("Could not locate isoc endpoint\n");1943 return -ENODEV;1944 }1945 1946 init_waitqueue_head(&dev->open);1947 spin_lock_init(&dev->slock);1948 1949 /* init video dma queues */1950 INIT_LIST_HEAD(&dev->vidq.active);1951 INIT_LIST_HEAD(&dev->vbiq.active);1952 1953 timer_setup(&dev->vid_timeout, au0828_vid_buffer_timeout, 0);1954 timer_setup(&dev->vbi_timeout, au0828_vbi_buffer_timeout, 0);1955 1956 dev->width = NTSC_STD_W;1957 dev->height = NTSC_STD_H;1958 dev->field_size = dev->width * dev->height;1959 dev->frame_size = dev->field_size << 1;1960 dev->bytesperline = dev->width << 1;1961 dev->vbi_width = 720;1962 dev->vbi_height = 1;1963 dev->ctrl_ainput = 0;1964 dev->ctrl_freq = 960;1965 dev->std = V4L2_STD_NTSC_M;1966 /* Default input is TV Tuner */1967 au0828_s_input(dev, 0);1968 1969 mutex_init(&dev->vb_queue_lock);1970 mutex_init(&dev->vb_vbi_queue_lock);1971 1972 /* Fill the video capture device struct */1973 dev->vdev = au0828_video_template;1974 dev->vdev.v4l2_dev = &dev->v4l2_dev;1975 dev->vdev.lock = &dev->lock;1976 dev->vdev.queue = &dev->vb_vidq;1977 dev->vdev.queue->lock = &dev->vb_queue_lock;1978 dev->vdev.device_caps =1979 V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |1980 V4L2_CAP_TUNER | V4L2_CAP_VIDEO_CAPTURE;1981 strscpy(dev->vdev.name, "au0828a video", sizeof(dev->vdev.name));1982 1983 /* Setup the VBI device */1984 dev->vbi_dev = au0828_video_template;1985 dev->vbi_dev.v4l2_dev = &dev->v4l2_dev;1986 dev->vbi_dev.lock = &dev->lock;1987 dev->vbi_dev.queue = &dev->vb_vbiq;1988 dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock;1989 dev->vbi_dev.device_caps =1990 V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |1991 V4L2_CAP_TUNER | V4L2_CAP_VBI_CAPTURE;1992 strscpy(dev->vbi_dev.name, "au0828a vbi", sizeof(dev->vbi_dev.name));1993 1994 /* Init entities at the Media Controller */1995 au0828_analog_create_entities(dev);1996 1997 /* initialize videobuf2 stuff */1998 retval = au0828_vb2_setup(dev);1999 if (retval != 0) {2000 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n",2001 retval);2002 return -ENODEV;2003 }2004 2005 /* Register the v4l2 device */2006 video_set_drvdata(&dev->vdev, dev);2007 retval = video_register_device(&dev->vdev, VFL_TYPE_VIDEO, -1);2008 if (retval != 0) {2009 dprintk(1, "unable to register video device (error = %d).\n",2010 retval);2011 return -ENODEV;2012 }2013 2014 /* Register the vbi device */2015 video_set_drvdata(&dev->vbi_dev, dev);2016 retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1);2017 if (retval != 0) {2018 dprintk(1, "unable to register vbi device (error = %d).\n",2019 retval);2020 ret = -ENODEV;2021 goto err_reg_vbi_dev;2022 }2023 2024#ifdef CONFIG_MEDIA_CONTROLLER2025 retval = v4l2_mc_create_media_graph(dev->media_dev);2026 if (retval) {2027 pr_err("%s() au0282_dev_register failed to create graph\n",2028 __func__);2029 ret = -ENODEV;2030 goto err_reg_vbi_dev;2031 }2032#endif2033 2034 dprintk(1, "%s completed!\n", __func__);2035 2036 return 0;2037 2038err_reg_vbi_dev:2039 vb2_video_unregister_device(&dev->vdev);2040 return ret;2041}2042 2043