diff options
Diffstat (limited to 'drivers/media/usb/msi2500')
| -rw-r--r-- | drivers/media/usb/msi2500/msi2500.c | 655 |
1 files changed, 338 insertions, 317 deletions
diff --git a/drivers/media/usb/msi2500/msi2500.c b/drivers/media/usb/msi2500/msi2500.c index efc761c78..3f276d921 100644 --- a/drivers/media/usb/msi2500/msi2500.c +++ b/drivers/media/usb/msi2500/msi2500.c @@ -1,4 +1,5 @@ /* + * Mirics MSi2500 driver * Mirics MSi3101 SDR Dongle driver * * Copyright (C) 2013 Antti Palosaari <crope@iki.fi> @@ -13,10 +14,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - * * That driver is somehow based of pwc driver: * (C) 1999-2004 Nemosoft Unv. * (C) 2004-2006 Luc Saillard (luc@saillard.org) @@ -119,7 +116,7 @@ struct msi2500_frame_buf { struct list_head list; }; -struct msi2500_state { +struct msi2500_dev { struct device *dev; struct video_device vdev; struct v4l2_device v4l2_dev; @@ -158,19 +155,19 @@ struct msi2500_state { /* Private functions */ static struct msi2500_frame_buf *msi2500_get_next_fill_buf( - struct msi2500_state *s) + struct msi2500_dev *dev) { unsigned long flags; struct msi2500_frame_buf *buf = NULL; - spin_lock_irqsave(&s->queued_bufs_lock, flags); - if (list_empty(&s->queued_bufs)) + spin_lock_irqsave(&dev->queued_bufs_lock, flags); + if (list_empty(&dev->queued_bufs)) goto leave; - buf = list_entry(s->queued_bufs.next, struct msi2500_frame_buf, list); + buf = list_entry(dev->queued_bufs.next, struct msi2500_frame_buf, list); list_del(&buf->list); leave: - spin_unlock_irqrestore(&s->queued_bufs_lock, flags); + spin_unlock_irqrestore(&dev->queued_bufs_lock, flags); return buf; } @@ -256,8 +253,8 @@ leave: * signed 14-bit sample */ -static int msi2500_convert_stream(struct msi2500_state *s, u8 *dst, u8 *src, - unsigned int src_len) +static int msi2500_convert_stream(struct msi2500_dev *dev, u8 *dst, u8 *src, + unsigned int src_len) { unsigned int i, j, transactions, dst_len = 0; u32 sample[3]; @@ -268,26 +265,27 @@ static int msi2500_convert_stream(struct msi2500_state *s, u8 *dst, u8 *src, for (i = 0; i < transactions; i++) { sample[i] = src[3] << 24 | src[2] << 16 | src[1] << 8 | src[0] << 0; - if (i == 0 && s->next_sample != sample[0]) { - dev_dbg_ratelimited(s->dev, - "%d samples lost, %d %08x:%08x\n", - sample[0] - s->next_sample, - src_len, s->next_sample, sample[0]); + if (i == 0 && dev->next_sample != sample[0]) { + dev_dbg_ratelimited(dev->dev, + "%d samples lost, %d %08x:%08x\n", + sample[0] - dev->next_sample, + src_len, dev->next_sample, + sample[0]); } /* * Dump all unknown 'garbage' data - maybe we will discover * someday if there is something rational... */ - dev_dbg_ratelimited(s->dev, "%*ph\n", 12, &src[4]); + dev_dbg_ratelimited(dev->dev, "%*ph\n", 12, &src[4]); src += 16; /* skip header */ - switch (s->pixelformat) { + switch (dev->pixelformat) { case V4L2_SDR_FMT_CU8: /* 504 x IQ samples */ { - s8 *s8src = (s8 *) src; - u8 *u8dst = (u8 *) dst; + s8 *s8src = (s8 *)src; + u8 *u8dst = (u8 *)dst; for (j = 0; j < 1008; j++) *u8dst++ = *s8src++ + 128; @@ -295,13 +293,13 @@ static int msi2500_convert_stream(struct msi2500_state *s, u8 *dst, u8 *src, src += 1008; dst += 1008; dst_len += 1008; - s->next_sample = sample[i] + 504; + dev->next_sample = sample[i] + 504; break; } case V4L2_SDR_FMT_CU16LE: /* 252 x IQ samples */ { - s16 *s16src = (s16 *) src; - u16 *u16dst = (u16 *) dst; + s16 *s16src = (s16 *)src; + u16 *u16dst = (u16 *)dst; struct {signed int x:14; } se; /* sign extension */ unsigned int utmp; @@ -317,38 +315,38 @@ static int msi2500_convert_stream(struct msi2500_state *s, u8 *dst, u8 *src, src += 1008; dst += 1008; dst_len += 1008; - s->next_sample = sample[i] + 252; + dev->next_sample = sample[i] + 252; break; } case MSI2500_PIX_FMT_SDR_MSI2500_384: /* 384 x IQ samples */ /* Dump unknown 'garbage' data */ - dev_dbg_ratelimited(s->dev, "%*ph\n", 24, &src[1000]); + dev_dbg_ratelimited(dev->dev, "%*ph\n", 24, &src[1000]); memcpy(dst, src, 984); src += 984 + 24; dst += 984; dst_len += 984; - s->next_sample = sample[i] + 384; + dev->next_sample = sample[i] + 384; break; case V4L2_SDR_FMT_CS8: /* 504 x IQ samples */ memcpy(dst, src, 1008); src += 1008; dst += 1008; dst_len += 1008; - s->next_sample = sample[i] + 504; + dev->next_sample = sample[i] + 504; break; case MSI2500_PIX_FMT_SDR_S12: /* 336 x IQ samples */ memcpy(dst, src, 1008); src += 1008; dst += 1008; dst_len += 1008; - s->next_sample = sample[i] + 336; + dev->next_sample = sample[i] + 336; break; case V4L2_SDR_FMT_CS14LE: /* 252 x IQ samples */ memcpy(dst, src, 1008); src += 1008; dst += 1008; dst_len += 1008; - s->next_sample = sample[i] + 252; + dev->next_sample = sample[i] + 252; break; default: break; @@ -356,17 +354,17 @@ static int msi2500_convert_stream(struct msi2500_state *s, u8 *dst, u8 *src, } /* calculate sample rate and output it in 10 seconds intervals */ - if (unlikely(time_is_before_jiffies(s->jiffies_next))) { + if (unlikely(time_is_before_jiffies(dev->jiffies_next))) { #define MSECS 10000UL unsigned int msecs = jiffies_to_msecs(jiffies - - s->jiffies_next + msecs_to_jiffies(MSECS)); - unsigned int samples = s->next_sample - s->sample; - - s->jiffies_next = jiffies + msecs_to_jiffies(MSECS); - s->sample = s->next_sample; - dev_dbg(s->dev, "size=%u samples=%u msecs=%u sample rate=%lu\n", - src_len, samples, msecs, - samples * 1000UL / msecs); + dev->jiffies_next + msecs_to_jiffies(MSECS)); + unsigned int samples = dev->next_sample - dev->sample; + + dev->jiffies_next = jiffies + msecs_to_jiffies(MSECS); + dev->sample = dev->next_sample; + dev_dbg(dev->dev, "size=%u samples=%u msecs=%u sample rate=%lu\n", + src_len, samples, msecs, + samples * 1000UL / msecs); } return dst_len; @@ -378,27 +376,28 @@ static int msi2500_convert_stream(struct msi2500_state *s, u8 *dst, u8 *src, */ static void msi2500_isoc_handler(struct urb *urb) { - struct msi2500_state *s = (struct msi2500_state *)urb->context; + struct msi2500_dev *dev = (struct msi2500_dev *)urb->context; int i, flen, fstatus; unsigned char *iso_buf = NULL; struct msi2500_frame_buf *fbuf; - if (unlikely(urb->status == -ENOENT || urb->status == -ECONNRESET || - urb->status == -ESHUTDOWN)) { - dev_dbg(s->dev, "URB (%p) unlinked %ssynchronuously\n", - urb, urb->status == -ENOENT ? "" : "a"); + if (unlikely(urb->status == -ENOENT || + urb->status == -ECONNRESET || + urb->status == -ESHUTDOWN)) { + dev_dbg(dev->dev, "URB (%p) unlinked %ssynchronuously\n", + urb, urb->status == -ENOENT ? "" : "a"); return; } if (unlikely(urb->status != 0)) { - dev_dbg(s->dev, "called with status %d\n", urb->status); + dev_dbg(dev->dev, "called with status %d\n", urb->status); /* Give up after a number of contiguous errors */ - if (++s->isoc_errors > MAX_ISOC_ERRORS) - dev_dbg(s->dev, "Too many ISOC errors, bailing out\n"); + if (++dev->isoc_errors > MAX_ISOC_ERRORS) + dev_dbg(dev->dev, "Too many ISOC errors, bailing out\n"); goto handler_end; } else { /* Reset ISOC error counter. We did get here, after all. */ - s->isoc_errors = 0; + dev->isoc_errors = 0; } /* Compact data */ @@ -408,9 +407,9 @@ static void msi2500_isoc_handler(struct urb *urb) /* Check frame error */ fstatus = urb->iso_frame_desc[i].status; if (unlikely(fstatus)) { - dev_dbg_ratelimited(s->dev, - "frame=%d/%d has error %d skipping\n", - i, urb->number_of_packets, fstatus); + dev_dbg_ratelimited(dev->dev, + "frame=%d/%d has error %d skipping\n", + i, urb->number_of_packets, fstatus); continue; } @@ -422,18 +421,18 @@ static void msi2500_isoc_handler(struct urb *urb) iso_buf = urb->transfer_buffer + urb->iso_frame_desc[i].offset; /* Get free framebuffer */ - fbuf = msi2500_get_next_fill_buf(s); + fbuf = msi2500_get_next_fill_buf(dev); if (unlikely(fbuf == NULL)) { - s->vb_full++; - dev_dbg_ratelimited(s->dev, - "videobuf is full, %d packets dropped\n", - s->vb_full); + dev->vb_full++; + dev_dbg_ratelimited(dev->dev, + "videobuf is full, %d packets dropped\n", + dev->vb_full); continue; } /* fill framebuffer */ ptr = vb2_plane_vaddr(&fbuf->vb, 0); - flen = msi2500_convert_stream(s, ptr, iso_buf, flen); + flen = msi2500_convert_stream(dev, ptr, iso_buf, flen); vb2_set_plane_payload(&fbuf->vb, 0, flen); vb2_buffer_done(&fbuf->vb, VB2_BUF_STATE_DONE); } @@ -441,66 +440,66 @@ static void msi2500_isoc_handler(struct urb *urb) handler_end: i = usb_submit_urb(urb, GFP_ATOMIC); if (unlikely(i != 0)) - dev_dbg(s->dev, "Error (%d) re-submitting urb\n", i); + dev_dbg(dev->dev, "Error (%d) re-submitting urb\n", i); } -static void msi2500_iso_stop(struct msi2500_state *s) +static void msi2500_iso_stop(struct msi2500_dev *dev) { int i; - dev_dbg(s->dev, "\n"); + dev_dbg(dev->dev, "\n"); /* Unlinking ISOC buffers one by one */ for (i = 0; i < MAX_ISO_BUFS; i++) { - if (s->urbs[i]) { - dev_dbg(s->dev, "Unlinking URB %p\n", s->urbs[i]); - usb_kill_urb(s->urbs[i]); + if (dev->urbs[i]) { + dev_dbg(dev->dev, "Unlinking URB %p\n", dev->urbs[i]); + usb_kill_urb(dev->urbs[i]); } } } -static void msi2500_iso_free(struct msi2500_state *s) +static void msi2500_iso_free(struct msi2500_dev *dev) { int i; - dev_dbg(s->dev, "\n"); + dev_dbg(dev->dev, "\n"); /* Freeing ISOC buffers one by one */ for (i = 0; i < MAX_ISO_BUFS; i++) { - if (s->urbs[i]) { - dev_dbg(s->dev, "Freeing URB\n"); - if (s->urbs[i]->transfer_buffer) { - usb_free_coherent(s->udev, - s->urbs[i]->transfer_buffer_length, - s->urbs[i]->transfer_buffer, - s->urbs[i]->transfer_dma); + if (dev->urbs[i]) { + dev_dbg(dev->dev, "Freeing URB\n"); + if (dev->urbs[i]->transfer_buffer) { + usb_free_coherent(dev->udev, + dev->urbs[i]->transfer_buffer_length, + dev->urbs[i]->transfer_buffer, + dev->urbs[i]->transfer_dma); } - usb_free_urb(s->urbs[i]); - s->urbs[i] = NULL; + usb_free_urb(dev->urbs[i]); + dev->urbs[i] = NULL; } } } /* Both v4l2_lock and vb_queue_lock should be locked when calling this */ -static void msi2500_isoc_cleanup(struct msi2500_state *s) +static void msi2500_isoc_cleanup(struct msi2500_dev *dev) { - dev_dbg(s->dev, "\n"); + dev_dbg(dev->dev, "\n"); - msi2500_iso_stop(s); - msi2500_iso_free(s); + msi2500_iso_stop(dev); + msi2500_iso_free(dev); } /* Both v4l2_lock and vb_queue_lock should be locked when calling this */ -static int msi2500_isoc_init(struct msi2500_state *s) +static int msi2500_isoc_init(struct msi2500_dev *dev) { struct urb *urb; int i, j, ret; - dev_dbg(s->dev, "\n"); + dev_dbg(dev->dev, "\n"); - s->isoc_errors = 0; + dev->isoc_errors = 0; - ret = usb_set_interface(s->udev, 0, 1); + ret = usb_set_interface(dev->udev, 0, 1); if (ret) return ret; @@ -508,29 +507,29 @@ static int msi2500_isoc_init(struct msi2500_state *s) for (i = 0; i < MAX_ISO_BUFS; i++) { urb = usb_alloc_urb(ISO_FRAMES_PER_DESC, GFP_KERNEL); if (urb == NULL) { - dev_err(s->dev, "Failed to allocate urb %d\n", i); - msi2500_isoc_cleanup(s); + dev_err(dev->dev, "Failed to allocate urb %d\n", i); + msi2500_isoc_cleanup(dev); return -ENOMEM; } - s->urbs[i] = urb; - dev_dbg(s->dev, "Allocated URB at 0x%p\n", urb); + dev->urbs[i] = urb; + dev_dbg(dev->dev, "Allocated URB at 0x%p\n", urb); urb->interval = 1; - urb->dev = s->udev; - urb->pipe = usb_rcvisocpipe(s->udev, 0x81); + urb->dev = dev->udev; + urb->pipe = usb_rcvisocpipe(dev->udev, 0x81); urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; - urb->transfer_buffer = usb_alloc_coherent(s->udev, + urb->transfer_buffer = usb_alloc_coherent(dev->udev, ISO_BUFFER_SIZE, GFP_KERNEL, &urb->transfer_dma); if (urb->transfer_buffer == NULL) { - dev_err(s->dev, "Failed to allocate urb buffer %d\n", - i); - msi2500_isoc_cleanup(s); + dev_err(dev->dev, + "Failed to allocate urb buffer %d\n", i); + msi2500_isoc_cleanup(dev); return -ENOMEM; } urb->transfer_buffer_length = ISO_BUFFER_SIZE; urb->complete = msi2500_isoc_handler; - urb->context = s; + urb->context = dev; urb->start_frame = 0; urb->number_of_packets = ISO_FRAMES_PER_DESC; for (j = 0; j < ISO_FRAMES_PER_DESC; j++) { @@ -541,14 +540,15 @@ static int msi2500_isoc_init(struct msi2500_state *s) /* link */ for (i = 0; i < MAX_ISO_BUFS; i++) { - ret = usb_submit_urb(s->urbs[i], GFP_KERNEL); + ret = usb_submit_urb(dev->urbs[i], GFP_KERNEL); if (ret) { - dev_err(s->dev, "usb_submit_urb %d failed with error %d\n", - i, ret); - msi2500_isoc_cleanup(s); + dev_err(dev->dev, + "usb_submit_urb %d failed with error %d\n", + i, ret); + msi2500_isoc_cleanup(dev); return ret; } - dev_dbg(s->dev, "URB 0x%p submitted.\n", s->urbs[i]); + dev_dbg(dev->dev, "URB 0x%p submitted.\n", dev->urbs[i]); } /* All is done... */ @@ -556,56 +556,56 @@ static int msi2500_isoc_init(struct msi2500_state *s) } /* Must be called with vb_queue_lock hold */ -static void msi2500_cleanup_queued_bufs(struct msi2500_state *s) +static void msi2500_cleanup_queued_bufs(struct msi2500_dev *dev) { unsigned long flags; - dev_dbg(s->dev, "\n"); + dev_dbg(dev->dev, "\n"); - spin_lock_irqsave(&s->queued_bufs_lock, flags); - while (!list_empty(&s->queued_bufs)) { + spin_lock_irqsave(&dev->queued_bufs_lock, flags); + while (!list_empty(&dev->queued_bufs)) { struct msi2500_frame_buf *buf; - buf = list_entry(s->queued_bufs.next, struct msi2500_frame_buf, - list); + buf = list_entry(dev->queued_bufs.next, + struct msi2500_frame_buf, list); list_del(&buf->list); vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); } - spin_unlock_irqrestore(&s->queued_bufs_lock, flags); + spin_unlock_irqrestore(&dev->queued_bufs_lock, flags); } /* The user yanked out the cable... */ static void msi2500_disconnect(struct usb_interface *intf) { struct v4l2_device *v = usb_get_intfdata(intf); - struct msi2500_state *s = - container_of(v, struct msi2500_state, v4l2_dev); + struct msi2500_dev *dev = + container_of(v, struct msi2500_dev, v4l2_dev); - dev_dbg(s->dev, "\n"); + dev_dbg(dev->dev, "\n"); - mutex_lock(&s->vb_queue_lock); - mutex_lock(&s->v4l2_lock); + mutex_lock(&dev->vb_queue_lock); + mutex_lock(&dev->v4l2_lock); /* No need to keep the urbs around after disconnection */ - s->udev = NULL; - v4l2_device_disconnect(&s->v4l2_dev); - video_unregister_device(&s->vdev); - spi_unregister_master(s->master); - mutex_unlock(&s->v4l2_lock); - mutex_unlock(&s->vb_queue_lock); - - v4l2_device_put(&s->v4l2_dev); + dev->udev = NULL; + v4l2_device_disconnect(&dev->v4l2_dev); + video_unregister_device(&dev->vdev); + spi_unregister_master(dev->master); + mutex_unlock(&dev->v4l2_lock); + mutex_unlock(&dev->vb_queue_lock); + + v4l2_device_put(&dev->v4l2_dev); } static int msi2500_querycap(struct file *file, void *fh, - struct v4l2_capability *cap) + struct v4l2_capability *cap) { - struct msi2500_state *s = video_drvdata(file); + struct msi2500_dev *dev = video_drvdata(file); - dev_dbg(s->dev, "\n"); + dev_dbg(dev->dev, "\n"); strlcpy(cap->driver, KBUILD_MODNAME, sizeof(cap->driver)); - strlcpy(cap->card, s->vdev.name, sizeof(cap->card)); - usb_make_path(s->udev, cap->bus_info, sizeof(cap->bus_info)); + strlcpy(cap->card, dev->vdev.name, sizeof(cap->card)); + usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); cap->device_caps = V4L2_CAP_SDR_CAPTURE | V4L2_CAP_STREAMING | V4L2_CAP_READWRITE | V4L2_CAP_TUNER; cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; @@ -614,43 +614,46 @@ static int msi2500_querycap(struct file *file, void *fh, /* Videobuf2 operations */ static int msi2500_queue_setup(struct vb2_queue *vq, - const struct v4l2_format *fmt, unsigned int *nbuffers, - unsigned int *nplanes, unsigned int sizes[], void *alloc_ctxs[]) + const struct v4l2_format *fmt, + unsigned int *nbuffers, + unsigned int *nplanes, unsigned int sizes[], + void *alloc_ctxs[]) { - struct msi2500_state *s = vb2_get_drv_priv(vq); + struct msi2500_dev *dev = vb2_get_drv_priv(vq); - dev_dbg(s->dev, "nbuffers=%d\n", *nbuffers); + dev_dbg(dev->dev, "nbuffers=%d\n", *nbuffers); /* Absolute min and max number of buffers available for mmap() */ *nbuffers = clamp_t(unsigned int, *nbuffers, 8, 32); *nplanes = 1; - sizes[0] = PAGE_ALIGN(s->buffersize); - dev_dbg(s->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]); + sizes[0] = PAGE_ALIGN(dev->buffersize); + dev_dbg(dev->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]); return 0; } static void msi2500_buf_queue(struct vb2_buffer *vb) { - struct msi2500_state *s = vb2_get_drv_priv(vb->vb2_queue); - struct msi2500_frame_buf *buf = - container_of(vb, struct msi2500_frame_buf, vb); + struct msi2500_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + struct msi2500_frame_buf *buf = container_of(vb, + struct msi2500_frame_buf, + vb); unsigned long flags; /* Check the device has not disconnected between prep and queuing */ - if (unlikely(!s->udev)) { + if (unlikely(!dev->udev)) { vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); return; } - spin_lock_irqsave(&s->queued_bufs_lock, flags); - list_add_tail(&buf->list, &s->queued_bufs); - spin_unlock_irqrestore(&s->queued_bufs_lock, flags); + spin_lock_irqsave(&dev->queued_bufs_lock, flags); + list_add_tail(&buf->list, &dev->queued_bufs); + spin_unlock_irqrestore(&dev->queued_bufs_lock, flags); } #define CMD_WREG 0x41 #define CMD_START_STREAMING 0x43 #define CMD_STOP_STREAMING 0x45 -#define CMD_READ_UNKNOW 0x48 +#define CMD_READ_UNKNOWN 0x48 #define msi2500_dbg_usb_control_msg(_dev, _r, _t, _v, _i, _b, _l) { \ char *_direction; \ @@ -663,7 +666,7 @@ static void msi2500_buf_queue(struct vb2_buffer *vb) _l & 0xff, _l >> 8, _direction, _l, _b); \ } -static int msi2500_ctrl_msg(struct msi2500_state *s, u8 cmd, u32 data) +static int msi2500_ctrl_msg(struct msi2500_dev *dev, u8 cmd, u32 data) { int ret; u8 request = cmd; @@ -671,39 +674,38 @@ static int msi2500_ctrl_msg(struct msi2500_state *s, u8 cmd, u32 data) u16 value = (data >> 0) & 0xffff; u16 index = (data >> 16) & 0xffff; - msi2500_dbg_usb_control_msg(s->dev, - request, requesttype, value, index, NULL, 0); - ret = usb_control_msg(s->udev, usb_sndctrlpipe(s->udev, 0), - request, requesttype, value, index, NULL, 0, 2000); + msi2500_dbg_usb_control_msg(dev->dev, request, requesttype, + value, index, NULL, 0); + ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), request, + requesttype, value, index, NULL, 0, 2000); if (ret) - dev_err(s->dev, "failed %d, cmd %02x, data %04x\n", - ret, cmd, data); + dev_err(dev->dev, "failed %d, cmd %02x, data %04x\n", + ret, cmd, data); return ret; } -#define F_REF 24000000 -#define DIV_R_IN 2 -static int msi2500_set_usb_adc(struct msi2500_state *s) +static int msi2500_set_usb_adc(struct msi2500_dev *dev) { - int ret, div_n, div_m, div_r_out, f_sr, f_vco, fract; + int ret; + unsigned int f_vco, f_sr, div_n, k, k_cw, div_out; u32 reg3, reg4, reg7; struct v4l2_ctrl *bandwidth_auto; struct v4l2_ctrl *bandwidth; - f_sr = s->f_adc; + f_sr = dev->f_adc; /* set tuner, subdev, filters according to sampling rate */ - bandwidth_auto = v4l2_ctrl_find(&s->hdl, + bandwidth_auto = v4l2_ctrl_find(&dev->hdl, V4L2_CID_RF_TUNER_BANDWIDTH_AUTO); if (v4l2_ctrl_g_ctrl(bandwidth_auto)) { - bandwidth = v4l2_ctrl_find(&s->hdl, + bandwidth = v4l2_ctrl_find(&dev->hdl, V4L2_CID_RF_TUNER_BANDWIDTH); - v4l2_ctrl_s_ctrl(bandwidth, s->f_adc); + v4l2_ctrl_s_ctrl(bandwidth, dev->f_adc); } /* select stream format */ - switch (s->pixelformat) { + switch (dev->pixelformat) { case V4L2_SDR_FMT_CU8: reg7 = 0x000c9407; /* 504 */ break; @@ -728,6 +730,21 @@ static int msi2500_set_usb_adc(struct msi2500_state *s) } /* + * Fractional-N synthesizer + * + * +----------------------------------------+ + * v | + * Fref +----+ +-------+ +-----+ +------+ +---+ + * ------> | PD | --> | VCO | --> | /2 | ------> | /N.F | <-- | K | + * +----+ +-------+ +-----+ +------+ +---+ + * | + * | + * v + * +-------+ +-----+ Fout + * | /Rout | --> | /12 | ------> + * +-------+ +-----+ + */ + /* * Synthesizer config is just a educated guess... * * [7:0] 0x03, register address @@ -754,10 +771,14 @@ static int msi2500_set_usb_adc(struct msi2500_state *s) * * VCO 202000000 - 720000000++ */ + + #define F_REF 24000000 + #define DIV_PRE_N 2 + #define DIV_LO_OUT 12 reg3 = 0x01000303; reg4 = 0x00000004; - /* XXX: Filters? AGC? */ + /* XXX: Filters? AGC? VCO band? */ if (f_sr < 6000000) reg3 |= 0x1 << 20; else if (f_sr < 7000000) @@ -767,54 +788,55 @@ static int msi2500_set_usb_adc(struct msi2500_state *s) else reg3 |= 0xd << 20; - for (div_r_out = 4; div_r_out < 16; div_r_out += 2) { - f_vco = f_sr * div_r_out * 12; - dev_dbg(s->dev, "div_r_out=%d f_vco=%d\n", div_r_out, f_vco); + for (div_out = 4; div_out < 16; div_out += 2) { + f_vco = f_sr * div_out * DIV_LO_OUT; + dev_dbg(dev->dev, "div_out=%u f_vco=%u\n", div_out, f_vco); if (f_vco >= 202000000) break; } - div_n = f_vco / (F_REF * DIV_R_IN); - div_m = f_vco % (F_REF * DIV_R_IN); - fract = 0x200000ul * div_m / (F_REF * DIV_R_IN); + /* Calculate PLL integer and fractional control word. */ + div_n = div_u64_rem(f_vco, DIV_PRE_N * F_REF, &k); + k_cw = div_u64((u64) k * 0x200000, DIV_PRE_N * F_REF); reg3 |= div_n << 16; - reg3 |= (div_r_out / 2 - 1) << 10; - reg3 |= ((fract >> 20) & 0x000001) << 15; /* [20] */ - reg4 |= ((fract >> 0) & 0x0fffff) << 8; /* [19:0] */ + reg3 |= (div_out / 2 - 1) << 10; + reg3 |= ((k_cw >> 20) & 0x000001) << 15; /* [20] */ + reg4 |= ((k_cw >> 0) & 0x0fffff) << 8; /* [19:0] */ - dev_dbg(s->dev, "f_sr=%d f_vco=%d div_n=%d div_m=%d div_r_out=%d reg3=%08x reg4=%08x\n", - f_sr, f_vco, div_n, div_m, div_r_out, reg3, reg4); + dev_dbg(dev->dev, + "f_sr=%u f_vco=%u div_n=%u k=%u div_out=%u reg3=%08x reg4=%08x\n", + f_sr, f_vco, div_n, k, div_out, reg3, reg4); - ret = msi2500_ctrl_msg(s, CMD_WREG, 0x00608008); + ret = msi2500_ctrl_msg(dev, CMD_WREG, 0x00608008); if (ret) goto err; - ret = msi2500_ctrl_msg(s, CMD_WREG, 0x00000c05); + ret = msi2500_ctrl_msg(dev, CMD_WREG, 0x00000c05); if (ret) goto err; - ret = msi2500_ctrl_msg(s, CMD_WREG, 0x00020000); + ret = msi2500_ctrl_msg(dev, CMD_WREG, 0x00020000); if (ret) goto err; - ret = msi2500_ctrl_msg(s, CMD_WREG, 0x00480102); + ret = msi2500_ctrl_msg(dev, CMD_WREG, 0x00480102); if (ret) goto err; - ret = msi2500_ctrl_msg(s, CMD_WREG, 0x00f38008); + ret = msi2500_ctrl_msg(dev, CMD_WREG, 0x00f38008); if (ret) goto err; - ret = msi2500_ctrl_msg(s, CMD_WREG, reg7); + ret = msi2500_ctrl_msg(dev, CMD_WREG, reg7); if (ret) goto err; - ret = msi2500_ctrl_msg(s, CMD_WREG, reg4); + ret = msi2500_ctrl_msg(dev, CMD_WREG, reg4); if (ret) goto err; - ret = msi2500_ctrl_msg(s, CMD_WREG, reg3); + ret = msi2500_ctrl_msg(dev, CMD_WREG, reg3); if (ret) goto err; err: @@ -823,57 +845,57 @@ err: static int msi2500_start_streaming(struct vb2_queue *vq, unsigned int count) { - struct msi2500_state *s = vb2_get_drv_priv(vq); + struct msi2500_dev *dev = vb2_get_drv_priv(vq); int ret; - dev_dbg(s->dev, "\n"); + dev_dbg(dev->dev, "\n"); - if (!s->udev) + if (!dev->udev) return -ENODEV; - if (mutex_lock_interruptible(&s->v4l2_lock)) + if (mutex_lock_interruptible(&dev->v4l2_lock)) return -ERESTARTSYS; /* wake-up tuner */ - v4l2_subdev_call(s->v4l2_subdev, core, s_power, 1); + v4l2_subdev_call(dev->v4l2_subdev, core, s_power, 1); - ret = msi2500_set_usb_adc(s); + ret = msi2500_set_usb_adc(dev); - ret = msi2500_isoc_init(s); + ret = msi2500_isoc_init(dev); if (ret) - msi2500_cleanup_queued_bufs(s); + msi2500_cleanup_queued_bufs(dev); - ret = msi2500_ctrl_msg(s, CMD_START_STREAMING, 0); + ret = msi2500_ctrl_msg(dev, CMD_START_STREAMING, 0); - mutex_unlock(&s->v4l2_lock); + mutex_unlock(&dev->v4l2_lock); return ret; } static void msi2500_stop_streaming(struct vb2_queue *vq) { - struct msi2500_state *s = vb2_get_drv_priv(vq); + struct msi2500_dev *dev = vb2_get_drv_priv(vq); - dev_dbg(s->dev, "\n"); + dev_dbg(dev->dev, "\n"); - mutex_lock(&s->v4l2_lock); + mutex_lock(&dev->v4l2_lock); - if (s->udev) - msi2500_isoc_cleanup(s); + if (dev->udev) + msi2500_isoc_cleanup(dev); - msi2500_cleanup_queued_bufs(s); + msi2500_cleanup_queued_bufs(dev); /* according to tests, at least 700us delay is required */ msleep(20); - if (!msi2500_ctrl_msg(s, CMD_STOP_STREAMING, 0)) { + if (!msi2500_ctrl_msg(dev, CMD_STOP_STREAMING, 0)) { /* sleep USB IF / ADC */ - msi2500_ctrl_msg(s, CMD_WREG, 0x01000003); + msi2500_ctrl_msg(dev, CMD_WREG, 0x01000003); } /* sleep tuner */ - v4l2_subdev_call(s->v4l2_subdev, core, s_power, 0); + v4l2_subdev_call(dev->v4l2_subdev, core, s_power, 0); - mutex_unlock(&s->v4l2_lock); + mutex_unlock(&dev->v4l2_lock); } static struct vb2_ops msi2500_vb2_ops = { @@ -886,13 +908,13 @@ static struct vb2_ops msi2500_vb2_ops = { }; static int msi2500_enum_fmt_sdr_cap(struct file *file, void *priv, - struct v4l2_fmtdesc *f) + struct v4l2_fmtdesc *f) { - struct msi2500_state *s = video_drvdata(file); + struct msi2500_dev *dev = video_drvdata(file); - dev_dbg(s->dev, "index=%d\n", f->index); + dev_dbg(dev->dev, "index=%d\n", f->index); - if (f->index >= s->num_formats) + if (f->index >= dev->num_formats) return -EINVAL; strlcpy(f->description, formats[f->index].name, sizeof(f->description)); @@ -902,45 +924,45 @@ static int msi2500_enum_fmt_sdr_cap(struct file *file, void *priv, } static int msi2500_g_fmt_sdr_cap(struct file *file, void *priv, - struct v4l2_format *f) + struct v4l2_format *f) { - struct msi2500_state *s = video_drvdata(file); + struct msi2500_dev *dev = video_drvdata(file); - dev_dbg(s->dev, "pixelformat fourcc %4.4s\n", - (char *)&s->pixelformat); + dev_dbg(dev->dev, "pixelformat fourcc %4.4s\n", + (char *)&dev->pixelformat); - f->fmt.sdr.pixelformat = s->pixelformat; - f->fmt.sdr.buffersize = s->buffersize; + f->fmt.sdr.pixelformat = dev->pixelformat; + f->fmt.sdr.buffersize = dev->buffersize; memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); return 0; } static int msi2500_s_fmt_sdr_cap(struct file *file, void *priv, - struct v4l2_format *f) + struct v4l2_format *f) { - struct msi2500_state *s = video_drvdata(file); - struct vb2_queue *q = &s->vb_queue; + struct msi2500_dev *dev = video_drvdata(file); + struct vb2_queue *q = &dev->vb_queue; int i; - dev_dbg(s->dev, "pixelformat fourcc %4.4s\n", - (char *)&f->fmt.sdr.pixelformat); + dev_dbg(dev->dev, "pixelformat fourcc %4.4s\n", + (char *)&f->fmt.sdr.pixelformat); if (vb2_is_busy(q)) return -EBUSY; memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); - for (i = 0; i < s->num_formats; i++) { + for (i = 0; i < dev->num_formats; i++) { if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { - s->pixelformat = formats[i].pixelformat; - s->buffersize = formats[i].buffersize; + dev->pixelformat = formats[i].pixelformat; + dev->buffersize = formats[i].buffersize; f->fmt.sdr.buffersize = formats[i].buffersize; return 0; } } - s->pixelformat = formats[0].pixelformat; - s->buffersize = formats[0].buffersize; + dev->pixelformat = formats[0].pixelformat; + dev->buffersize = formats[0].buffersize; f->fmt.sdr.pixelformat = formats[0].pixelformat; f->fmt.sdr.buffersize = formats[0].buffersize; @@ -948,16 +970,16 @@ static int msi2500_s_fmt_sdr_cap(struct file *file, void *priv, } static int msi2500_try_fmt_sdr_cap(struct file *file, void *priv, - struct v4l2_format *f) + struct v4l2_format *f) { - struct msi2500_state *s = video_drvdata(file); + struct msi2500_dev *dev = video_drvdata(file); int i; - dev_dbg(s->dev, "pixelformat fourcc %4.4s\n", - (char *)&f->fmt.sdr.pixelformat); + dev_dbg(dev->dev, "pixelformat fourcc %4.4s\n", + (char *)&f->fmt.sdr.pixelformat); memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); - for (i = 0; i < s->num_formats; i++) { + for (i = 0; i < dev->num_formats; i++) { if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { f->fmt.sdr.buffersize = formats[i].buffersize; return 0; @@ -971,17 +993,17 @@ static int msi2500_try_fmt_sdr_cap(struct file *file, void *priv, } static int msi2500_s_tuner(struct file *file, void *priv, - const struct v4l2_tuner *v) + const struct v4l2_tuner *v) { - struct msi2500_state *s = video_drvdata(file); + struct msi2500_dev *dev = video_drvdata(file); int ret; - dev_dbg(s->dev, "index=%d\n", v->index); + dev_dbg(dev->dev, "index=%d\n", v->index); if (v->index == 0) ret = 0; else if (v->index == 1) - ret = v4l2_subdev_call(s->v4l2_subdev, tuner, s_tuner, v); + ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, s_tuner, v); else ret = -EINVAL; @@ -990,10 +1012,10 @@ static int msi2500_s_tuner(struct file *file, void *priv, static int msi2500_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v) { - struct msi2500_state *s = video_drvdata(file); + struct msi2500_dev *dev = video_drvdata(file); int ret; - dev_dbg(s->dev, "index=%d\n", v->index); + dev_dbg(dev->dev, "index=%d\n", v->index); if (v->index == 0) { strlcpy(v->name, "Mirics MSi2500", sizeof(v->name)); @@ -1003,7 +1025,7 @@ static int msi2500_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v) v->rangehigh = 15000000; ret = 0; } else if (v->index == 1) { - ret = v4l2_subdev_call(s->v4l2_subdev, tuner, g_tuner, v); + ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, g_tuner, v); } else { ret = -EINVAL; } @@ -1012,19 +1034,19 @@ static int msi2500_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v) } static int msi2500_g_frequency(struct file *file, void *priv, - struct v4l2_frequency *f) + struct v4l2_frequency *f) { - struct msi2500_state *s = video_drvdata(file); + struct msi2500_dev *dev = video_drvdata(file); int ret = 0; - dev_dbg(s->dev, "tuner=%d type=%d\n", f->tuner, f->type); + dev_dbg(dev->dev, "tuner=%d type=%d\n", f->tuner, f->type); if (f->tuner == 0) { - f->frequency = s->f_adc; + f->frequency = dev->f_adc; ret = 0; } else if (f->tuner == 1) { f->type = V4L2_TUNER_RF; - ret = v4l2_subdev_call(s->v4l2_subdev, tuner, g_frequency, f); + ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, g_frequency, f); } else { ret = -EINVAL; } @@ -1033,22 +1055,22 @@ static int msi2500_g_frequency(struct file *file, void *priv, } static int msi2500_s_frequency(struct file *file, void *priv, - const struct v4l2_frequency *f) + const struct v4l2_frequency *f) { - struct msi2500_state *s = video_drvdata(file); + struct msi2500_dev *dev = video_drvdata(file); int ret; - dev_dbg(s->dev, "tuner=%d type=%d frequency=%u\n", - f->tuner, f->type, f->frequency); + dev_dbg(dev->dev, "tuner=%d type=%d frequency=%u\n", + f->tuner, f->type, f->frequency); if (f->tuner == 0) { - s->f_adc = clamp_t(unsigned int, f->frequency, - bands[0].rangelow, - bands[0].rangehigh); - dev_dbg(s->dev, "ADC frequency=%u Hz\n", s->f_adc); - ret = msi2500_set_usb_adc(s); + dev->f_adc = clamp_t(unsigned int, f->frequency, + bands[0].rangelow, + bands[0].rangehigh); + dev_dbg(dev->dev, "ADC frequency=%u Hz\n", dev->f_adc); + ret = msi2500_set_usb_adc(dev); } else if (f->tuner == 1) { - ret = v4l2_subdev_call(s->v4l2_subdev, tuner, s_frequency, f); + ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, s_frequency, f); } else { ret = -EINVAL; } @@ -1057,13 +1079,13 @@ static int msi2500_s_frequency(struct file *file, void *priv, } static int msi2500_enum_freq_bands(struct file *file, void *priv, - struct v4l2_frequency_band *band) + struct v4l2_frequency_band *band) { - struct msi2500_state *s = video_drvdata(file); + struct msi2500_dev *dev = video_drvdata(file); int ret; - dev_dbg(s->dev, "tuner=%d type=%d index=%d\n", - band->tuner, band->type, band->index); + dev_dbg(dev->dev, "tuner=%d type=%d index=%d\n", + band->tuner, band->type, band->index); if (band->tuner == 0) { if (band->index >= ARRAY_SIZE(bands)) { @@ -1073,8 +1095,8 @@ static int msi2500_enum_freq_bands(struct file *file, void *priv, ret = 0; } } else if (band->tuner == 1) { - ret = v4l2_subdev_call(s->v4l2_subdev, tuner, - enum_freq_bands, band); + ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, + enum_freq_bands, band); } else { ret = -EINVAL; } @@ -1131,29 +1153,28 @@ static struct video_device msi2500_template = { static void msi2500_video_release(struct v4l2_device *v) { - struct msi2500_state *s = - container_of(v, struct msi2500_state, v4l2_dev); + struct msi2500_dev *dev = container_of(v, struct msi2500_dev, v4l2_dev); - v4l2_ctrl_handler_free(&s->hdl); - v4l2_device_unregister(&s->v4l2_dev); - kfree(s); + v4l2_ctrl_handler_free(&dev->hdl); + v4l2_device_unregister(&dev->v4l2_dev); + kfree(dev); } static int msi2500_transfer_one_message(struct spi_master *master, - struct spi_message *m) + struct spi_message *m) { - struct msi2500_state *s = spi_master_get_devdata(master); + struct msi2500_dev *dev = spi_master_get_devdata(master); struct spi_transfer *t; int ret = 0; u32 data; list_for_each_entry(t, &m->transfers, transfer_list) { - dev_dbg(s->dev, "msg=%*ph\n", t->len, t->tx_buf); + dev_dbg(dev->dev, "msg=%*ph\n", t->len, t->tx_buf); data = 0x09; /* reg 9 is SPI adapter */ data |= ((u8 *)t->tx_buf)[0] << 8; data |= ((u8 *)t->tx_buf)[1] << 16; data |= ((u8 *)t->tx_buf)[2] << 24; - ret = msi2500_ctrl_msg(s, CMD_WREG, data); + ret = msi2500_ctrl_msg(dev, CMD_WREG, data); } m->status = ret; @@ -1162,9 +1183,9 @@ static int msi2500_transfer_one_message(struct spi_master *master, } static int msi2500_probe(struct usb_interface *intf, - const struct usb_device_id *id) + const struct usb_device_id *id) { - struct msi2500_state *s; + struct msi2500_dev *dev; struct v4l2_subdev *sd; struct spi_master *master; int ret; @@ -1175,65 +1196,65 @@ static int msi2500_probe(struct usb_interface *intf, .max_speed_hz = 12000000, }; - s = kzalloc(sizeof(struct msi2500_state), GFP_KERNEL); - if (s == NULL) { - dev_err(&intf->dev, "Could not allocate memory for state\n"); - return -ENOMEM; + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (!dev) { + ret = -ENOMEM; + goto err; } - mutex_init(&s->v4l2_lock); - mutex_init(&s->vb_queue_lock); - spin_lock_init(&s->queued_bufs_lock); - INIT_LIST_HEAD(&s->queued_bufs); - s->dev = &intf->dev; - s->udev = interface_to_usbdev(intf); - s->f_adc = bands[0].rangelow; - s->pixelformat = formats[0].pixelformat; - s->buffersize = formats[0].buffersize; - s->num_formats = NUM_FORMATS; + mutex_init(&dev->v4l2_lock); + mutex_init(&dev->vb_queue_lock); + spin_lock_init(&dev->queued_bufs_lock); + INIT_LIST_HEAD(&dev->queued_bufs); + dev->dev = &intf->dev; + dev->udev = interface_to_usbdev(intf); + dev->f_adc = bands[0].rangelow; + dev->pixelformat = formats[0].pixelformat; + dev->buffersize = formats[0].buffersize; + dev->num_formats = NUM_FORMATS; if (!msi2500_emulated_fmt) - s->num_formats -= 2; + dev->num_formats -= 2; /* Init videobuf2 queue structure */ - s->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE; - s->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; - s->vb_queue.drv_priv = s; - s->vb_queue.buf_struct_size = sizeof(struct msi2500_frame_buf); - s->vb_queue.ops = &msi2500_vb2_ops; - s->vb_queue.mem_ops = &vb2_vmalloc_memops; - s->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - ret = vb2_queue_init(&s->vb_queue); + dev->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE; + dev->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; + dev->vb_queue.drv_priv = dev; + dev->vb_queue.buf_struct_size = sizeof(struct msi2500_frame_buf); + dev->vb_queue.ops = &msi2500_vb2_ops; + dev->vb_queue.mem_ops = &vb2_vmalloc_memops; + dev->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + ret = vb2_queue_init(&dev->vb_queue); if (ret) { - dev_err(s->dev, "Could not initialize vb2 queue\n"); + dev_err(dev->dev, "Could not initialize vb2 queue\n"); goto err_free_mem; } /* Init video_device structure */ - s->vdev = msi2500_template; - s->vdev.queue = &s->vb_queue; - s->vdev.queue->lock = &s->vb_queue_lock; - video_set_drvdata(&s->vdev, s); + dev->vdev = msi2500_template; + dev->vdev.queue = &dev->vb_queue; + dev->vdev.queue->lock = &dev->vb_queue_lock; + video_set_drvdata(&dev->vdev, dev); /* Register the v4l2_device structure */ - s->v4l2_dev.release = msi2500_video_release; - ret = v4l2_device_register(&intf->dev, &s->v4l2_dev); + dev->v4l2_dev.release = msi2500_video_release; + ret = v4l2_device_register(&intf->dev, &dev->v4l2_dev); if (ret) { - dev_err(s->dev, "Failed to register v4l2-device (%d)\n", ret); + dev_err(dev->dev, "Failed to register v4l2-device (%d)\n", ret); goto err_free_mem; } /* SPI master adapter */ - master = spi_alloc_master(s->dev, 0); + master = spi_alloc_master(dev->dev, 0); if (master == NULL) { ret = -ENOMEM; goto err_unregister_v4l2_dev; } - s->master = master; + dev->master = master; master->bus_num = 0; master->num_chipselect = 1; master->transfer_one_message = msi2500_transfer_one_message; - spi_master_set_devdata(master, s); + spi_master_set_devdata(master, dev); ret = spi_register_master(master); if (ret) { spi_master_put(master); @@ -1241,57 +1262,57 @@ static int msi2500_probe(struct usb_interface *intf, } /* load v4l2 subdevice */ - sd = v4l2_spi_new_subdev(&s->v4l2_dev, master, &board_info); - s->v4l2_subdev = sd; + sd = v4l2_spi_new_subdev(&dev->v4l2_dev, master, &board_info); + dev->v4l2_subdev = sd; if (sd == NULL) { - dev_err(s->dev, "cannot get v4l2 subdevice\n"); + dev_err(dev->dev, "cannot get v4l2 subdevice\n"); ret = -ENODEV; goto err_unregister_master; } /* Register controls */ - v4l2_ctrl_handler_init(&s->hdl, 0); - if (s->hdl.error) { - ret = s->hdl.error; - dev_err(s->dev, "Could not initialize controls\n"); + v4l2_ctrl_handler_init(&dev->hdl, 0); + if (dev->hdl.error) { + ret = dev->hdl.error; + dev_err(dev->dev, "Could not initialize controls\n"); goto err_free_controls; } /* currently all controls are from subdev */ - v4l2_ctrl_add_handler(&s->hdl, sd->ctrl_handler, NULL); + v4l2_ctrl_add_handler(&dev->hdl, sd->ctrl_handler, NULL); - s->v4l2_dev.ctrl_handler = &s->hdl; - s->vdev.v4l2_dev = &s->v4l2_dev; - s->vdev.lock = &s->v4l2_lock; + dev->v4l2_dev.ctrl_handler = &dev->hdl; + dev->vdev.v4l2_dev = &dev->v4l2_dev; + dev->vdev.lock = &dev->v4l2_lock; - ret = video_register_device(&s->vdev, VFL_TYPE_SDR, -1); + ret = video_register_device(&dev->vdev, VFL_TYPE_SDR, -1); if (ret) { - dev_err(s->dev, "Failed to register as video device (%d)\n", - ret); + dev_err(dev->dev, + "Failed to register as video device (%d)\n", ret); goto err_unregister_v4l2_dev; } - dev_info(s->dev, "Registered as %s\n", - video_device_node_name(&s->vdev)); - dev_notice(s->dev, "SDR API is still slightly experimental and functionality changes may follow\n"); - + dev_info(dev->dev, "Registered as %s\n", + video_device_node_name(&dev->vdev)); + dev_notice(dev->dev, + "SDR API is still slightly experimental and functionality changes may follow\n"); return 0; - err_free_controls: - v4l2_ctrl_handler_free(&s->hdl); + v4l2_ctrl_handler_free(&dev->hdl); err_unregister_master: - spi_unregister_master(s->master); + spi_unregister_master(dev->master); err_unregister_v4l2_dev: - v4l2_device_unregister(&s->v4l2_dev); + v4l2_device_unregister(&dev->v4l2_dev); err_free_mem: - kfree(s); + kfree(dev); +err: return ret; } /* USB device ID list */ static struct usb_device_id msi2500_id_table[] = { - { USB_DEVICE(0x1df7, 0x2500) }, /* Mirics MSi3101 SDR Dongle */ - { USB_DEVICE(0x2040, 0xd300) }, /* Hauppauge WinTV 133559 LF */ - { } + {USB_DEVICE(0x1df7, 0x2500)}, /* Mirics MSi3101 SDR Dongle */ + {USB_DEVICE(0x2040, 0xd300)}, /* Hauppauge WinTV 133559 LF */ + {} }; MODULE_DEVICE_TABLE(usb, msi2500_id_table); |