aboutsummaryrefslogtreecommitdiff
path: root/drivers/media/platform/ti/omap/omap_vout_vrfb.c
diff options
context:
space:
mode:
authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/media/platform/ti/omap/omap_vout_vrfb.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip
Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ...
Diffstat (limited to 'drivers/media/platform/ti/omap/omap_vout_vrfb.c')
-rw-r--r--drivers/media/platform/ti/omap/omap_vout_vrfb.c419
1 files changed, 419 insertions, 0 deletions
diff --git a/drivers/media/platform/ti/omap/omap_vout_vrfb.c b/drivers/media/platform/ti/omap/omap_vout_vrfb.c
new file mode 100644
index 000000000..0cfa01698
--- /dev/null
+++ b/drivers/media/platform/ti/omap/omap_vout_vrfb.c
@@ -0,0 +1,419 @@
+/*
+ * omap_vout_vrfb.c
+ *
+ * Copyright (C) 2010 Texas Instruments.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ */
+
+#include <linux/sched.h>
+#include <linux/platform_device.h>
+#include <linux/videodev2.h>
+#include <linux/slab.h>
+
+#include <media/v4l2-device.h>
+
+#include <video/omapvrfb.h>
+
+#include "omap_voutdef.h"
+#include "omap_voutlib.h"
+#include "omap_vout_vrfb.h"
+
+#define OMAP_DMA_NO_DEVICE 0
+
+/*
+ * Function for allocating video buffers
+ */
+static int omap_vout_allocate_vrfb_buffers(struct omap_vout_device *vout,
+ unsigned int *count, int startindex)
+{
+ int i, j;
+
+ for (i = 0; i < *count; i++) {
+ if (!vout->smsshado_virt_addr[i]) {
+ vout->smsshado_virt_addr[i] =
+ omap_vout_alloc_buffer(vout->smsshado_size,
+ &vout->smsshado_phy_addr[i]);
+ }
+ if (!vout->smsshado_virt_addr[i] && startindex != -1) {
+ if (vout->vq.memory == V4L2_MEMORY_MMAP && i >= startindex)
+ break;
+ }
+ if (!vout->smsshado_virt_addr[i]) {
+ for (j = 0; j < i; j++) {
+ omap_vout_free_buffer(
+ vout->smsshado_virt_addr[j],
+ vout->smsshado_size);
+ vout->smsshado_virt_addr[j] = 0;
+ vout->smsshado_phy_addr[j] = 0;
+ }
+ *count = 0;
+ return -ENOMEM;
+ }
+ memset((void *)(long)vout->smsshado_virt_addr[i], 0,
+ vout->smsshado_size);
+ }
+ return 0;
+}
+
+/*
+ * Wakes up the application once the DMA transfer to VRFB space is completed.
+ */
+static void omap_vout_vrfb_dma_tx_callback(void *data)
+{
+ struct vid_vrfb_dma *t = (struct vid_vrfb_dma *) data;
+
+ t->tx_status = 1;
+ wake_up_interruptible(&t->wait);
+}
+
+/*
+ * Free VRFB buffers
+ */
+void omap_vout_free_vrfb_buffers(struct omap_vout_device *vout)
+{
+ int j;
+
+ for (j = 0; j < VRFB_NUM_BUFS; j++) {
+ if (vout->smsshado_virt_addr[j]) {
+ omap_vout_free_buffer(vout->smsshado_virt_addr[j],
+ vout->smsshado_size);
+ vout->smsshado_virt_addr[j] = 0;
+ vout->smsshado_phy_addr[j] = 0;
+ }
+ }
+}
+
+int omap_vout_setup_vrfb_bufs(struct platform_device *pdev, int vid_num,
+ bool static_vrfb_allocation)
+{
+ int ret = 0, i, j;
+ struct omap_vout_device *vout;
+ struct video_device *vfd;
+ dma_cap_mask_t mask;
+ int image_width, image_height;
+ int vrfb_num_bufs = VRFB_NUM_BUFS;
+ struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
+ struct omap2video_device *vid_dev =
+ container_of(v4l2_dev, struct omap2video_device, v4l2_dev);
+
+ vout = vid_dev->vouts[vid_num];
+ vfd = vout->vfd;
+
+ for (i = 0; i < VRFB_NUM_BUFS; i++) {
+ if (omap_vrfb_request_ctx(&vout->vrfb_context[i])) {
+ dev_info(&pdev->dev, ": VRFB allocation failed\n");
+ for (j = 0; j < i; j++)
+ omap_vrfb_release_ctx(&vout->vrfb_context[j]);
+ return -ENOMEM;
+ }
+ }
+
+ /* Calculate VRFB memory size */
+ /* allocate for worst case size */
+ image_width = VID_MAX_WIDTH / TILE_SIZE;
+ if (VID_MAX_WIDTH % TILE_SIZE)
+ image_width++;
+
+ image_width = image_width * TILE_SIZE;
+ image_height = VID_MAX_HEIGHT / TILE_SIZE;
+
+ if (VID_MAX_HEIGHT % TILE_SIZE)
+ image_height++;
+
+ image_height = image_height * TILE_SIZE;
+ vout->smsshado_size = PAGE_ALIGN(image_width * image_height * 2 * 2);
+
+ /*
+ * Request and Initialize DMA, for DMA based VRFB transfer
+ */
+ dma_cap_zero(mask);
+ dma_cap_set(DMA_INTERLEAVE, mask);
+ vout->vrfb_dma_tx.chan = dma_request_chan_by_mask(&mask);
+ if (IS_ERR(vout->vrfb_dma_tx.chan)) {
+ vout->vrfb_dma_tx.req_status = DMA_CHAN_NOT_ALLOTED;
+ } else {
+ size_t xt_size = sizeof(struct dma_interleaved_template) +
+ sizeof(struct data_chunk);
+
+ vout->vrfb_dma_tx.xt = kzalloc(xt_size, GFP_KERNEL);
+ if (!vout->vrfb_dma_tx.xt) {
+ dma_release_channel(vout->vrfb_dma_tx.chan);
+ vout->vrfb_dma_tx.req_status = DMA_CHAN_NOT_ALLOTED;
+ }
+ }
+
+ if (vout->vrfb_dma_tx.req_status == DMA_CHAN_NOT_ALLOTED)
+ dev_info(&pdev->dev,
+ ": failed to allocate DMA Channel for video%d\n",
+ vfd->minor);
+
+ init_waitqueue_head(&vout->vrfb_dma_tx.wait);
+
+ /*
+ * statically allocated the VRFB buffer is done through
+ * command line arguments
+ */
+ if (static_vrfb_allocation) {
+ if (omap_vout_allocate_vrfb_buffers(vout, &vrfb_num_bufs, -1)) {
+ ret = -ENOMEM;
+ goto release_vrfb_ctx;
+ }
+ vout->vrfb_static_allocation = true;
+ }
+ return 0;
+
+release_vrfb_ctx:
+ for (j = 0; j < VRFB_NUM_BUFS; j++)
+ omap_vrfb_release_ctx(&vout->vrfb_context[j]);
+ return ret;
+}
+
+/*
+ * Release the VRFB context once the module exits
+ */
+void omap_vout_release_vrfb(struct omap_vout_device *vout)
+{
+ int i;
+
+ for (i = 0; i < VRFB_NUM_BUFS; i++)
+ omap_vrfb_release_ctx(&vout->vrfb_context[i]);
+
+ if (vout->vrfb_dma_tx.req_status == DMA_CHAN_ALLOTED) {
+ vout->vrfb_dma_tx.req_status = DMA_CHAN_NOT_ALLOTED;
+ kfree(vout->vrfb_dma_tx.xt);
+ dmaengine_terminate_sync(vout->vrfb_dma_tx.chan);
+ dma_release_channel(vout->vrfb_dma_tx.chan);
+ }
+}
+
+/*
+ * Allocate the buffers for the VRFB space. Data is copied from V4L2
+ * buffers to the VRFB buffers using the DMA engine.
+ */
+int omap_vout_vrfb_buffer_setup(struct omap_vout_device *vout,
+ unsigned int *count, unsigned int startindex)
+{
+ int i;
+ bool yuv_mode;
+
+ if (!is_rotation_enabled(vout))
+ return 0;
+
+ /* If rotation is enabled, allocate memory for VRFB space also */
+ *count = *count > VRFB_NUM_BUFS ? VRFB_NUM_BUFS : *count;
+
+ /* Allocate the VRFB buffers only if the buffers are not
+ * allocated during init time.
+ */
+ if (!vout->vrfb_static_allocation)
+ if (omap_vout_allocate_vrfb_buffers(vout, count, startindex))
+ return -ENOMEM;
+
+ if (vout->dss_mode == OMAP_DSS_COLOR_YUV2 ||
+ vout->dss_mode == OMAP_DSS_COLOR_UYVY)
+ yuv_mode = true;
+ else
+ yuv_mode = false;
+
+ for (i = 0; i < *count; i++)
+ omap_vrfb_setup(&vout->vrfb_context[i],
+ vout->smsshado_phy_addr[i], vout->pix.width,
+ vout->pix.height, vout->bpp, yuv_mode);
+
+ return 0;
+}
+
+int omap_vout_prepare_vrfb(struct omap_vout_device *vout,
+ struct vb2_buffer *vb)
+{
+ struct dma_async_tx_descriptor *tx;
+ enum dma_ctrl_flags flags = DMA_PREP_INTERRUPT | DMA_CTRL_ACK;
+ struct dma_chan *chan = vout->vrfb_dma_tx.chan;
+ struct dma_interleaved_template *xt = vout->vrfb_dma_tx.xt;
+ dma_cookie_t cookie;
+ dma_addr_t buf_phy_addr = vb2_dma_contig_plane_dma_addr(vb, 0);
+ enum dma_status status;
+ enum dss_rotation rotation;
+ size_t dst_icg;
+ u32 pixsize;
+
+ if (!is_rotation_enabled(vout))
+ return 0;
+
+ /* If rotation is enabled, copy input buffer into VRFB
+ * memory space using DMA. We are copying input buffer
+ * into VRFB memory space of desired angle and DSS will
+ * read image VRFB memory for 0 degree angle
+ */
+
+ pixsize = vout->bpp * vout->vrfb_bpp;
+ dst_icg = MAX_PIXELS_PER_LINE * pixsize - vout->pix.width * vout->bpp;
+
+ xt->src_start = buf_phy_addr;
+ xt->dst_start = vout->vrfb_context[vb->index].paddr[0];
+
+ xt->numf = vout->pix.height;
+ xt->frame_size = 1;
+ xt->sgl[0].size = vout->pix.width * vout->bpp;
+ xt->sgl[0].icg = dst_icg;
+
+ xt->dir = DMA_MEM_TO_MEM;
+ xt->src_sgl = false;
+ xt->src_inc = true;
+ xt->dst_sgl = true;
+ xt->dst_inc = true;
+
+ tx = dmaengine_prep_interleaved_dma(chan, xt, flags);
+ if (tx == NULL) {
+ pr_err("%s: DMA interleaved prep error\n", __func__);
+ return -EINVAL;
+ }
+
+ tx->callback = omap_vout_vrfb_dma_tx_callback;
+ tx->callback_param = &vout->vrfb_dma_tx;
+
+ cookie = dmaengine_submit(tx);
+ if (dma_submit_error(cookie)) {
+ pr_err("%s: dmaengine_submit failed (%d)\n", __func__, cookie);
+ return -EINVAL;
+ }
+
+ vout->vrfb_dma_tx.tx_status = 0;
+ dma_async_issue_pending(chan);
+
+ wait_event_interruptible_timeout(vout->vrfb_dma_tx.wait,
+ vout->vrfb_dma_tx.tx_status == 1,
+ VRFB_TX_TIMEOUT);
+
+ status = dma_async_is_tx_complete(chan, cookie, NULL, NULL);
+
+ if (vout->vrfb_dma_tx.tx_status == 0) {
+ pr_err("%s: Timeout while waiting for DMA\n", __func__);
+ dmaengine_terminate_sync(chan);
+ return -EINVAL;
+ } else if (status != DMA_COMPLETE) {
+ pr_err("%s: DMA completion %s status\n", __func__,
+ status == DMA_ERROR ? "error" : "busy");
+ dmaengine_terminate_sync(chan);
+ return -EINVAL;
+ }
+
+ /* Store buffers physical address into an array. Addresses
+ * from this array will be used to configure DSS */
+ rotation = calc_rotation(vout);
+ vout->queued_buf_addr[vb->index] =
+ vout->vrfb_context[vb->index].paddr[rotation];
+ return 0;
+}
+
+/*
+ * Calculate the buffer offsets from which the streaming should
+ * start. This offset calculation is mainly required because of
+ * the VRFB 32 pixels alignment with rotation.
+ */
+void omap_vout_calculate_vrfb_offset(struct omap_vout_device *vout)
+{
+ enum dss_rotation rotation;
+ bool mirroring = vout->mirror;
+ struct v4l2_rect *crop = &vout->crop;
+ struct v4l2_pix_format *pix = &vout->pix;
+ int *cropped_offset = &vout->cropped_offset;
+ int vr_ps = 1, ps = 2, temp_ps = 2;
+ int offset = 0, ctop = 0, cleft = 0, line_length = 0;
+
+ rotation = calc_rotation(vout);
+
+ if (V4L2_PIX_FMT_YUYV == pix->pixelformat ||
+ V4L2_PIX_FMT_UYVY == pix->pixelformat) {
+ if (is_rotation_enabled(vout)) {
+ /*
+ * ps - Actual pixel size for YUYV/UYVY for
+ * VRFB/Mirroring is 4 bytes
+ * vr_ps - Virtually pixel size for YUYV/UYVY is
+ * 2 bytes
+ */
+ ps = 4;
+ vr_ps = 2;
+ } else {
+ ps = 2; /* otherwise the pixel size is 2 byte */
+ }
+ } else if (V4L2_PIX_FMT_RGB32 == pix->pixelformat) {
+ ps = 4;
+ } else if (V4L2_PIX_FMT_RGB24 == pix->pixelformat) {
+ ps = 3;
+ }
+ vout->ps = ps;
+ vout->vr_ps = vr_ps;
+
+ if (is_rotation_enabled(vout)) {
+ line_length = MAX_PIXELS_PER_LINE;
+ ctop = (pix->height - crop->height) - crop->top;
+ cleft = (pix->width - crop->width) - crop->left;
+ } else {
+ line_length = pix->width;
+ }
+ vout->line_length = line_length;
+ switch (rotation) {
+ case dss_rotation_90_degree:
+ offset = vout->vrfb_context[0].yoffset *
+ vout->vrfb_context[0].bytespp;
+ temp_ps = ps / vr_ps;
+ if (!mirroring) {
+ *cropped_offset = offset + line_length *
+ temp_ps * cleft + crop->top * temp_ps;
+ } else {
+ *cropped_offset = offset + line_length * temp_ps *
+ cleft + crop->top * temp_ps + (line_length *
+ ((crop->width / (vr_ps)) - 1) * ps);
+ }
+ break;
+ case dss_rotation_180_degree:
+ offset = ((MAX_PIXELS_PER_LINE * vout->vrfb_context[0].yoffset *
+ vout->vrfb_context[0].bytespp) +
+ (vout->vrfb_context[0].xoffset *
+ vout->vrfb_context[0].bytespp));
+ if (!mirroring) {
+ *cropped_offset = offset + (line_length * ps * ctop) +
+ (cleft / vr_ps) * ps;
+
+ } else {
+ *cropped_offset = offset + (line_length * ps * ctop) +
+ (cleft / vr_ps) * ps + (line_length *
+ (crop->height - 1) * ps);
+ }
+ break;
+ case dss_rotation_270_degree:
+ offset = MAX_PIXELS_PER_LINE * vout->vrfb_context[0].xoffset *
+ vout->vrfb_context[0].bytespp;
+ temp_ps = ps / vr_ps;
+ if (!mirroring) {
+ *cropped_offset = offset + line_length *
+ temp_ps * crop->left + ctop * ps;
+ } else {
+ *cropped_offset = offset + line_length *
+ temp_ps * crop->left + ctop * ps +
+ (line_length * ((crop->width / vr_ps) - 1) *
+ ps);
+ }
+ break;
+ case dss_rotation_0_degree:
+ if (!mirroring) {
+ *cropped_offset = (line_length * ps) *
+ crop->top + (crop->left / vr_ps) * ps;
+ } else {
+ *cropped_offset = (line_length * ps) *
+ crop->top + (crop->left / vr_ps) * ps +
+ (line_length * (crop->height - 1) * ps);
+ }
+ break;
+ default:
+ *cropped_offset = (line_length * ps * crop->top) /
+ vr_ps + (crop->left * ps) / vr_ps +
+ ((crop->width / vr_ps) - 1) * ps;
+ break;
+ }
+}