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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/pci/zoran/zr36060.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/pci/zoran/zr36060.c')
-rw-r--r--drivers/media/pci/zoran/zr36060.c870
1 files changed, 870 insertions, 0 deletions
diff --git a/drivers/media/pci/zoran/zr36060.c b/drivers/media/pci/zoran/zr36060.c
new file mode 100644
index 000000000..75fd16760
--- /dev/null
+++ b/drivers/media/pci/zoran/zr36060.c
@@ -0,0 +1,870 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Zoran ZR36060 basic configuration functions
+ *
+ * Copyright (C) 2002 Laurent Pinchart <laurent.pinchart@skynet.be>
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+
+#include <linux/types.h>
+#include <linux/wait.h>
+
+/* I/O commands, error codes */
+#include <linux/io.h>
+
+/* headerfile of this module */
+#include "zr36060.h"
+
+/* codec io API */
+#include "videocodec.h"
+
+/* it doesn't make sense to have more than 20 or so, just to prevent some unwanted loops */
+#define MAX_CODECS 20
+
+/* amount of chips attached via this driver */
+static int zr36060_codecs;
+
+static bool low_bitrate;
+module_param(low_bitrate, bool, 0);
+MODULE_PARM_DESC(low_bitrate, "Buz compatibility option, halves bitrate");
+
+/* =========================================================================
+ * Local hardware I/O functions:
+ * read/write via codec layer (registers are located in the master device)
+ * =========================================================================
+ */
+
+static u8 zr36060_read(struct zr36060 *ptr, u16 reg)
+{
+ u8 value = 0;
+ struct zoran *zr = videocodec_to_zoran(ptr->codec);
+
+ // just in case something is wrong...
+ if (ptr->codec->master_data->readreg)
+ value = (ptr->codec->master_data->readreg(ptr->codec, reg)) & 0xff;
+ else
+ zrdev_err(zr, "%s: invalid I/O setup, nothing read!\n", ptr->name);
+
+ return value;
+}
+
+static void zr36060_write(struct zr36060 *ptr, u16 reg, u8 value)
+{
+ struct zoran *zr = videocodec_to_zoran(ptr->codec);
+
+ zrdev_dbg(zr, "0x%02x @0x%04x\n", value, reg);
+
+ // just in case something is wrong...
+ if (ptr->codec->master_data->writereg)
+ ptr->codec->master_data->writereg(ptr->codec, reg, value);
+ else
+ zrdev_err(zr, "%s: invalid I/O setup, nothing written!\n", ptr->name);
+}
+
+/* =========================================================================
+ * Local helper function:
+ * status read
+ * =========================================================================
+ */
+
+/* status is kept in datastructure */
+static u8 zr36060_read_status(struct zr36060 *ptr)
+{
+ ptr->status = zr36060_read(ptr, ZR060_CFSR);
+
+ zr36060_read(ptr, 0);
+ return ptr->status;
+}
+
+/* scale factor is kept in datastructure */
+static u16 zr36060_read_scalefactor(struct zr36060 *ptr)
+{
+ ptr->scalefact = (zr36060_read(ptr, ZR060_SF_HI) << 8) |
+ (zr36060_read(ptr, ZR060_SF_LO) & 0xFF);
+
+ /* leave 0 selected for an eventually GO from master */
+ zr36060_read(ptr, 0);
+ return ptr->scalefact;
+}
+
+/* wait if codec is ready to proceed (end of processing) or time is over */
+static void zr36060_wait_end(struct zr36060 *ptr)
+{
+ struct zoran *zr = videocodec_to_zoran(ptr->codec);
+ int i = 0;
+
+ while (zr36060_read_status(ptr) & ZR060_CFSR_BUSY) {
+ udelay(1);
+ if (i++ > 200000) { // 200ms, there is for sure something wrong!!!
+ zrdev_dbg(zr,
+ "%s: timeout at wait_end (last status: 0x%02x)\n",
+ ptr->name, ptr->status);
+ break;
+ }
+ }
+}
+
+/* Basic test of "connectivity", writes/reads to/from memory the SOF marker */
+static int zr36060_basic_test(struct zr36060 *ptr)
+{
+ struct zoran *zr = videocodec_to_zoran(ptr->codec);
+
+ if ((zr36060_read(ptr, ZR060_IDR_DEV) != 0x33) &&
+ (zr36060_read(ptr, ZR060_IDR_REV) != 0x01)) {
+ zrdev_err(zr, "%s: attach failed, can't connect to jpeg processor!\n", ptr->name);
+ return -ENXIO;
+ }
+
+ zr36060_wait_end(ptr);
+ if (ptr->status & ZR060_CFSR_BUSY) {
+ zrdev_err(zr, "%s: attach failed, jpeg processor failed (end flag)!\n", ptr->name);
+ return -EBUSY;
+ }
+
+ return 0; /* looks good! */
+}
+
+/* simple loop for pushing the init datasets */
+static int zr36060_pushit(struct zr36060 *ptr, u16 startreg, u16 len, const char *data)
+{
+ struct zoran *zr = videocodec_to_zoran(ptr->codec);
+ int i = 0;
+
+ zrdev_dbg(zr, "%s: write data block to 0x%04x (len=%d)\n", ptr->name,
+ startreg, len);
+ while (i < len)
+ zr36060_write(ptr, startreg++, data[i++]);
+
+ return i;
+}
+
+/* =========================================================================
+ * Basic datasets:
+ * jpeg baseline setup data (you find it on lots places in internet, or just
+ * extract it from any regular .jpg image...)
+ *
+ * Could be variable, but until it's not needed it they are just fixed to save
+ * memory. Otherwise expand zr36060 structure with arrays, push the values to
+ * it and initialize from there, as e.g. the linux zr36057/60 driver does it.
+ * =========================================================================
+ */
+static const char zr36060_dqt[0x86] = {
+ 0xff, 0xdb, //Marker: DQT
+ 0x00, 0x84, //Length: 2*65+2
+ 0x00, //Pq,Tq first table
+ 0x10, 0x0b, 0x0c, 0x0e, 0x0c, 0x0a, 0x10, 0x0e,
+ 0x0d, 0x0e, 0x12, 0x11, 0x10, 0x13, 0x18, 0x28,
+ 0x1a, 0x18, 0x16, 0x16, 0x18, 0x31, 0x23, 0x25,
+ 0x1d, 0x28, 0x3a, 0x33, 0x3d, 0x3c, 0x39, 0x33,
+ 0x38, 0x37, 0x40, 0x48, 0x5c, 0x4e, 0x40, 0x44,
+ 0x57, 0x45, 0x37, 0x38, 0x50, 0x6d, 0x51, 0x57,
+ 0x5f, 0x62, 0x67, 0x68, 0x67, 0x3e, 0x4d, 0x71,
+ 0x79, 0x70, 0x64, 0x78, 0x5c, 0x65, 0x67, 0x63,
+ 0x01, //Pq,Tq second table
+ 0x11, 0x12, 0x12, 0x18, 0x15, 0x18, 0x2f, 0x1a,
+ 0x1a, 0x2f, 0x63, 0x42, 0x38, 0x42, 0x63, 0x63,
+ 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
+ 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
+ 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
+ 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
+ 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
+ 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63
+};
+
+static const char zr36060_dht[0x1a4] = {
+ 0xff, 0xc4, //Marker: DHT
+ 0x01, 0xa2, //Length: 2*AC, 2*DC
+ 0x00, //DC first table
+ 0x00, 0x01, 0x05, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
+ 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
+ 0x01, //DC second table
+ 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
+ 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
+ 0x10, //AC first table
+ 0x00, 0x02, 0x01, 0x03, 0x03, 0x02, 0x04, 0x03,
+ 0x05, 0x05, 0x04, 0x04, 0x00, 0x00,
+ 0x01, 0x7D, 0x01, 0x02, 0x03, 0x00, 0x04, 0x11,
+ 0x05, 0x12, 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61,
+ 0x07, 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xA1,
+ 0x08, 0x23, 0x42, 0xB1, 0xC1, 0x15, 0x52, 0xD1, 0xF0, 0x24,
+ 0x33, 0x62, 0x72, 0x82, 0x09, 0x0A, 0x16, 0x17,
+ 0x18, 0x19, 0x1A, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x34,
+ 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44,
+ 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56,
+ 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66,
+ 0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
+ 0x79, 0x7A, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88,
+ 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99,
+ 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8,
+ 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9,
+ 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8,
+ 0xC9, 0xCA, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9,
+ 0xDA, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
+ 0xE8, 0xE9, 0xEA, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
+ 0xF8, 0xF9, 0xFA,
+ 0x11, //AC second table
+ 0x00, 0x02, 0x01, 0x02, 0x04, 0x04, 0x03, 0x04,
+ 0x07, 0x05, 0x04, 0x04, 0x00, 0x01,
+ 0x02, 0x77, 0x00, 0x01, 0x02, 0x03, 0x11, 0x04,
+ 0x05, 0x21, 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71,
+ 0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91,
+ 0xA1, 0xB1, 0xC1, 0x09, 0x23, 0x33, 0x52, 0xF0, 0x15, 0x62,
+ 0x72, 0xD1, 0x0A, 0x16, 0x24, 0x34, 0xE1, 0x25,
+ 0xF1, 0x17, 0x18, 0x19, 0x1A, 0x26, 0x27, 0x28, 0x29, 0x2A,
+ 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44,
+ 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56,
+ 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66,
+ 0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
+ 0x79, 0x7A, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98,
+ 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7,
+ 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8,
+ 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
+ 0xC8, 0xC9, 0xCA, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8,
+ 0xD9, 0xDA, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
+ 0xE8, 0xE9, 0xEA, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8,
+ 0xF9, 0xFA
+};
+
+/* jpeg baseline setup, this is just fixed in this driver (YUV pictures) */
+#define NO_OF_COMPONENTS 0x3 //Y,U,V
+#define BASELINE_PRECISION 0x8 //MCU size (?)
+static const char zr36060_tq[8] = { 0, 1, 1, 0, 0, 0, 0, 0 }; //table idx's QT
+static const char zr36060_td[8] = { 0, 1, 1, 0, 0, 0, 0, 0 }; //table idx's DC
+static const char zr36060_ta[8] = { 0, 1, 1, 0, 0, 0, 0, 0 }; //table idx's AC
+
+/* horizontal 422 decimation setup (maybe we support 411 or so later, too) */
+static const char zr36060_decimation_h[8] = { 2, 1, 1, 0, 0, 0, 0, 0 };
+static const char zr36060_decimation_v[8] = { 1, 1, 1, 0, 0, 0, 0, 0 };
+
+/*
+ * SOF (start of frame) segment depends on width, height and sampling ratio
+ * of each color component
+ */
+static int zr36060_set_sof(struct zr36060 *ptr)
+{
+ struct zoran *zr = videocodec_to_zoran(ptr->codec);
+ char sof_data[34]; // max. size of register set
+ int i;
+
+ zrdev_dbg(zr, "%s: write SOF (%dx%d, %d components)\n", ptr->name,
+ ptr->width, ptr->height, NO_OF_COMPONENTS);
+ sof_data[0] = 0xff;
+ sof_data[1] = 0xc0;
+ sof_data[2] = 0x00;
+ sof_data[3] = (3 * NO_OF_COMPONENTS) + 8;
+ sof_data[4] = BASELINE_PRECISION; // only '8' possible with zr36060
+ sof_data[5] = (ptr->height) >> 8;
+ sof_data[6] = (ptr->height) & 0xff;
+ sof_data[7] = (ptr->width) >> 8;
+ sof_data[8] = (ptr->width) & 0xff;
+ sof_data[9] = NO_OF_COMPONENTS;
+ for (i = 0; i < NO_OF_COMPONENTS; i++) {
+ sof_data[10 + (i * 3)] = i; // index identifier
+ sof_data[11 + (i * 3)] = (ptr->h_samp_ratio[i] << 4) |
+ (ptr->v_samp_ratio[i]); // sampling ratios
+ sof_data[12 + (i * 3)] = zr36060_tq[i]; // Q table selection
+ }
+ return zr36060_pushit(ptr, ZR060_SOF_IDX,
+ (3 * NO_OF_COMPONENTS) + 10, sof_data);
+}
+
+/* SOS (start of scan) segment depends on the used scan components of each color component */
+static int zr36060_set_sos(struct zr36060 *ptr)
+{
+ struct zoran *zr = videocodec_to_zoran(ptr->codec);
+ char sos_data[16]; // max. size of register set
+ int i;
+
+ zrdev_dbg(zr, "%s: write SOS\n", ptr->name);
+ sos_data[0] = 0xff;
+ sos_data[1] = 0xda;
+ sos_data[2] = 0x00;
+ sos_data[3] = 2 + 1 + (2 * NO_OF_COMPONENTS) + 3;
+ sos_data[4] = NO_OF_COMPONENTS;
+ for (i = 0; i < NO_OF_COMPONENTS; i++) {
+ sos_data[5 + (i * 2)] = i; // index
+ sos_data[6 + (i * 2)] = (zr36060_td[i] << 4) |
+ zr36060_ta[i]; // AC/DC tbl.sel.
+ }
+ sos_data[2 + 1 + (2 * NO_OF_COMPONENTS) + 2] = 00; // scan start
+ sos_data[2 + 1 + (2 * NO_OF_COMPONENTS) + 3] = 0x3f;
+ sos_data[2 + 1 + (2 * NO_OF_COMPONENTS) + 4] = 00;
+ return zr36060_pushit(ptr, ZR060_SOS_IDX,
+ 4 + 1 + (2 * NO_OF_COMPONENTS) + 3,
+ sos_data);
+}
+
+/* DRI (define restart interval) */
+static int zr36060_set_dri(struct zr36060 *ptr)
+{
+ struct zoran *zr = videocodec_to_zoran(ptr->codec);
+ char dri_data[6]; // max. size of register set
+
+ zrdev_dbg(zr, "%s: write DRI\n", ptr->name);
+ dri_data[0] = 0xff;
+ dri_data[1] = 0xdd;
+ dri_data[2] = 0x00;
+ dri_data[3] = 0x04;
+ dri_data[4] = (ptr->dri) >> 8;
+ dri_data[5] = (ptr->dri) & 0xff;
+ return zr36060_pushit(ptr, ZR060_DRI_IDX, 6, dri_data);
+}
+
+/* Setup compression/decompression of Zoran's JPEG processor ( see also zoran 36060 manual )
+ * ... sorry for the spaghetti code ...
+ */
+static void zr36060_init(struct zr36060 *ptr)
+{
+ int sum = 0;
+ long bitcnt, tmp;
+ struct zoran *zr = videocodec_to_zoran(ptr->codec);
+
+ if (ptr->mode == CODEC_DO_COMPRESSION) {
+ zrdev_dbg(zr, "%s: COMPRESSION SETUP\n", ptr->name);
+
+ zr36060_write(ptr, ZR060_LOAD, ZR060_LOAD_SYNC_RST);
+
+ /* 060 communicates with 067 in master mode */
+ zr36060_write(ptr, ZR060_CIR, ZR060_CIR_CODE_MSTR);
+
+ /* Compression with or without variable scale factor */
+ /*FIXME: What about ptr->bitrate_ctrl? */
+ zr36060_write(ptr, ZR060_CMR, ZR060_CMR_COMP | ZR060_CMR_PASS2 | ZR060_CMR_BRB);
+
+ /* Must be zero */
+ zr36060_write(ptr, ZR060_MBZ, 0x00);
+ zr36060_write(ptr, ZR060_TCR_HI, 0x00);
+ zr36060_write(ptr, ZR060_TCR_LO, 0x00);
+
+ /* Disable all IRQs - no DataErr means autoreset */
+ zr36060_write(ptr, ZR060_IMR, 0);
+
+ /* volume control settings */
+ zr36060_write(ptr, ZR060_SF_HI, ptr->scalefact >> 8);
+ zr36060_write(ptr, ZR060_SF_LO, ptr->scalefact & 0xff);
+
+ zr36060_write(ptr, ZR060_AF_HI, 0xff);
+ zr36060_write(ptr, ZR060_AF_M, 0xff);
+ zr36060_write(ptr, ZR060_AF_LO, 0xff);
+
+ /* setup the variable jpeg tables */
+ sum += zr36060_set_sof(ptr);
+ sum += zr36060_set_sos(ptr);
+ sum += zr36060_set_dri(ptr);
+
+/* setup the fixed jpeg tables - maybe variable, though - (see table init section above) */
+ sum += zr36060_pushit(ptr, ZR060_DQT_IDX, sizeof(zr36060_dqt), zr36060_dqt);
+ sum += zr36060_pushit(ptr, ZR060_DHT_IDX, sizeof(zr36060_dht), zr36060_dht);
+ zr36060_write(ptr, ZR060_APP_IDX, 0xff);
+ zr36060_write(ptr, ZR060_APP_IDX + 1, 0xe0 + ptr->app.appn);
+ zr36060_write(ptr, ZR060_APP_IDX + 2, 0x00);
+ zr36060_write(ptr, ZR060_APP_IDX + 3, ptr->app.len + 2);
+ sum += zr36060_pushit(ptr, ZR060_APP_IDX + 4, 60, ptr->app.data) + 4;
+ zr36060_write(ptr, ZR060_COM_IDX, 0xff);
+ zr36060_write(ptr, ZR060_COM_IDX + 1, 0xfe);
+ zr36060_write(ptr, ZR060_COM_IDX + 2, 0x00);
+ zr36060_write(ptr, ZR060_COM_IDX + 3, ptr->com.len + 2);
+ sum += zr36060_pushit(ptr, ZR060_COM_IDX + 4, 60, ptr->com.data) + 4;
+
+ /* setup misc. data for compression (target code sizes) */
+
+ /* size of compressed code to reach without header data */
+ sum = ptr->real_code_vol - sum;
+ bitcnt = sum << 3; /* need the size in bits */
+
+ tmp = bitcnt >> 16;
+ zrdev_dbg(zr,
+ "%s: code: csize=%d, tot=%d, bit=%ld, highbits=%ld\n",
+ ptr->name, sum, ptr->real_code_vol, bitcnt, tmp);
+ zr36060_write(ptr, ZR060_TCV_NET_HI, tmp >> 8);
+ zr36060_write(ptr, ZR060_TCV_NET_MH, tmp & 0xff);
+ tmp = bitcnt & 0xffff;
+ zr36060_write(ptr, ZR060_TCV_NET_ML, tmp >> 8);
+ zr36060_write(ptr, ZR060_TCV_NET_LO, tmp & 0xff);
+
+ bitcnt -= bitcnt >> 7; // bits without stuffing
+ bitcnt -= ((bitcnt * 5) >> 6); // bits without eob
+
+ tmp = bitcnt >> 16;
+ zrdev_dbg(zr, "%s: code: nettobit=%ld, highnettobits=%ld\n",
+ ptr->name, bitcnt, tmp);
+ zr36060_write(ptr, ZR060_TCV_DATA_HI, tmp >> 8);
+ zr36060_write(ptr, ZR060_TCV_DATA_MH, tmp & 0xff);
+ tmp = bitcnt & 0xffff;
+ zr36060_write(ptr, ZR060_TCV_DATA_ML, tmp >> 8);
+ zr36060_write(ptr, ZR060_TCV_DATA_LO, tmp & 0xff);
+
+ /* JPEG markers to be included in the compressed stream */
+ zr36060_write(ptr, ZR060_MER,
+ ZR060_MER_DQT | ZR060_MER_DHT |
+ ((ptr->com.len > 0) ? ZR060_MER_COM : 0) |
+ ((ptr->app.len > 0) ? ZR060_MER_APP : 0));
+
+ /* Setup the Video Frontend */
+ /* Limit pixel range to 16..235 as per CCIR-601 */
+ zr36060_write(ptr, ZR060_VCR, ZR060_VCR_RANGE);
+
+ } else {
+ zrdev_dbg(zr, "%s: EXPANSION SETUP\n", ptr->name);
+
+ zr36060_write(ptr, ZR060_LOAD, ZR060_LOAD_SYNC_RST);
+
+ /* 060 communicates with 067 in master mode */
+ zr36060_write(ptr, ZR060_CIR, ZR060_CIR_CODE_MSTR);
+
+ /* Decompression */
+ zr36060_write(ptr, ZR060_CMR, 0);
+
+ /* Must be zero */
+ zr36060_write(ptr, ZR060_MBZ, 0x00);
+ zr36060_write(ptr, ZR060_TCR_HI, 0x00);
+ zr36060_write(ptr, ZR060_TCR_LO, 0x00);
+
+ /* Disable all IRQs - no DataErr means autoreset */
+ zr36060_write(ptr, ZR060_IMR, 0);
+
+ /* setup misc. data for expansion */
+ zr36060_write(ptr, ZR060_MER, 0);
+
+/* setup the fixed jpeg tables - maybe variable, though - (see table init section above) */
+ zr36060_pushit(ptr, ZR060_DHT_IDX, sizeof(zr36060_dht), zr36060_dht);
+
+ /* Setup the Video Frontend */
+ //zr36060_write(ptr, ZR060_VCR, ZR060_VCR_FI_EXT);
+ //this doesn't seem right and doesn't work...
+ zr36060_write(ptr, ZR060_VCR, ZR060_VCR_RANGE);
+ }
+
+ /* Load the tables */
+ zr36060_write(ptr, ZR060_LOAD, ZR060_LOAD_SYNC_RST | ZR060_LOAD_LOAD);
+ zr36060_wait_end(ptr);
+ zrdev_dbg(zr, "%s: Status after table preload: 0x%02x\n",
+ ptr->name, ptr->status);
+
+ if (ptr->status & ZR060_CFSR_BUSY) {
+ zrdev_err(zr, "%s: init aborted!\n", ptr->name);
+ return; // something is wrong, its timed out!!!!
+ }
+}
+
+/* =========================================================================
+ * CODEC API FUNCTIONS
+ * this functions are accessed by the master via the API structure
+ * =========================================================================
+ */
+
+/* set compressiion/expansion mode and launches codec -
+ * this should be the last call from the master before starting processing
+ */
+static int zr36060_set_mode(struct videocodec *codec, int mode)
+{
+ struct zr36060 *ptr = (struct zr36060 *)codec->data;
+ struct zoran *zr = videocodec_to_zoran(codec);
+
+ zrdev_dbg(zr, "%s: set_mode %d call\n", ptr->name, mode);
+
+ if (mode != CODEC_DO_EXPANSION && mode != CODEC_DO_COMPRESSION)
+ return -EINVAL;
+
+ ptr->mode = mode;
+ zr36060_init(ptr);
+
+ return 0;
+}
+
+/* set picture size (norm is ignored as the codec doesn't know about it) */
+static int zr36060_set_video(struct videocodec *codec, const struct tvnorm *norm,
+ struct vfe_settings *cap, struct vfe_polarity *pol)
+{
+ struct zr36060 *ptr = (struct zr36060 *)codec->data;
+ struct zoran *zr = videocodec_to_zoran(codec);
+ u32 reg;
+ int size;
+
+ zrdev_dbg(zr, "%s: set_video %d/%d-%dx%d (%%%d) call\n", ptr->name,
+ cap->x, cap->y, cap->width, cap->height, cap->decimation);
+
+ /* if () return -EINVAL;
+ * trust the master driver that it knows what it does - so
+ * we allow invalid startx/y and norm for now ...
+ */
+ ptr->width = cap->width / (cap->decimation & 0xff);
+ ptr->height = cap->height / (cap->decimation >> 8);
+
+ zr36060_write(ptr, ZR060_LOAD, ZR060_LOAD_SYNC_RST);
+
+ /* Note that VSPol/HSPol bits in zr36060 have the opposite
+ * meaning of their zr360x7 counterparts with the same names
+ * N.b. for VSPol this is only true if FIVEdge = 0 (default,
+ * left unchanged here - in accordance with datasheet).
+ */
+ reg = (!pol->vsync_pol ? ZR060_VPR_VS_POL : 0)
+ | (!pol->hsync_pol ? ZR060_VPR_HS_POL : 0)
+ | (pol->field_pol ? ZR060_VPR_FI_POL : 0)
+ | (pol->blank_pol ? ZR060_VPR_BL_POL : 0)
+ | (pol->subimg_pol ? ZR060_VPR_S_IMG_POL : 0)
+ | (pol->poe_pol ? ZR060_VPR_POE_POL : 0)
+ | (pol->pvalid_pol ? ZR060_VPR_P_VAL_POL : 0)
+ | (pol->vclk_pol ? ZR060_VPR_VCLK_POL : 0);
+ zr36060_write(ptr, ZR060_VPR, reg);
+
+ reg = 0;
+ switch (cap->decimation & 0xff) {
+ default:
+ case 1:
+ break;
+
+ case 2:
+ reg |= ZR060_SR_H_SCALE2;
+ break;
+
+ case 4:
+ reg |= ZR060_SR_H_SCALE4;
+ break;
+ }
+
+ switch (cap->decimation >> 8) {
+ default:
+ case 1:
+ break;
+
+ case 2:
+ reg |= ZR060_SR_V_SCALE;
+ break;
+ }
+ zr36060_write(ptr, ZR060_SR, reg);
+
+ zr36060_write(ptr, ZR060_BCR_Y, 0x00);
+ zr36060_write(ptr, ZR060_BCR_U, 0x80);
+ zr36060_write(ptr, ZR060_BCR_V, 0x80);
+
+ /* sync generator */
+
+ reg = norm->ht - 1; /* Vtotal */
+ zr36060_write(ptr, ZR060_SGR_VTOTAL_HI, (reg >> 8) & 0xff);
+ zr36060_write(ptr, ZR060_SGR_VTOTAL_LO, (reg >> 0) & 0xff);
+
+ reg = norm->wt - 1; /* Htotal */
+ zr36060_write(ptr, ZR060_SGR_HTOTAL_HI, (reg >> 8) & 0xff);
+ zr36060_write(ptr, ZR060_SGR_HTOTAL_LO, (reg >> 0) & 0xff);
+
+ reg = 6 - 1; /* VsyncSize */
+ zr36060_write(ptr, ZR060_SGR_VSYNC, reg);
+
+ reg = 68;
+ zr36060_write(ptr, ZR060_SGR_HSYNC, reg);
+
+ reg = norm->v_start - 1; /* BVstart */
+ zr36060_write(ptr, ZR060_SGR_BVSTART, reg);
+
+ reg += norm->ha / 2; /* BVend */
+ zr36060_write(ptr, ZR060_SGR_BVEND_HI, (reg >> 8) & 0xff);
+ zr36060_write(ptr, ZR060_SGR_BVEND_LO, (reg >> 0) & 0xff);
+
+ reg = norm->h_start - 1; /* BHstart */
+ zr36060_write(ptr, ZR060_SGR_BHSTART, reg);
+
+ reg += norm->wa; /* BHend */
+ zr36060_write(ptr, ZR060_SGR_BHEND_HI, (reg >> 8) & 0xff);
+ zr36060_write(ptr, ZR060_SGR_BHEND_LO, (reg >> 0) & 0xff);
+
+ /* active area */
+ reg = cap->y + norm->v_start; /* Vstart */
+ zr36060_write(ptr, ZR060_AAR_VSTART_HI, (reg >> 8) & 0xff);
+ zr36060_write(ptr, ZR060_AAR_VSTART_LO, (reg >> 0) & 0xff);
+
+ reg += cap->height; /* Vend */
+ zr36060_write(ptr, ZR060_AAR_VEND_HI, (reg >> 8) & 0xff);
+ zr36060_write(ptr, ZR060_AAR_VEND_LO, (reg >> 0) & 0xff);
+
+ reg = cap->x + norm->h_start; /* Hstart */
+ zr36060_write(ptr, ZR060_AAR_HSTART_HI, (reg >> 8) & 0xff);
+ zr36060_write(ptr, ZR060_AAR_HSTART_LO, (reg >> 0) & 0xff);
+
+ reg += cap->width; /* Hend */
+ zr36060_write(ptr, ZR060_AAR_HEND_HI, (reg >> 8) & 0xff);
+ zr36060_write(ptr, ZR060_AAR_HEND_LO, (reg >> 0) & 0xff);
+
+ /* subimage area */
+ reg = norm->v_start - 4; /* SVstart */
+ zr36060_write(ptr, ZR060_SWR_VSTART_HI, (reg >> 8) & 0xff);
+ zr36060_write(ptr, ZR060_SWR_VSTART_LO, (reg >> 0) & 0xff);
+
+ reg += norm->ha / 2 + 8; /* SVend */
+ zr36060_write(ptr, ZR060_SWR_VEND_HI, (reg >> 8) & 0xff);
+ zr36060_write(ptr, ZR060_SWR_VEND_LO, (reg >> 0) & 0xff);
+
+ reg = norm->h_start /*+ 64 */ - 4; /* SHstart */
+ zr36060_write(ptr, ZR060_SWR_HSTART_HI, (reg >> 8) & 0xff);
+ zr36060_write(ptr, ZR060_SWR_HSTART_LO, (reg >> 0) & 0xff);
+
+ reg += norm->wa + 8; /* SHend */
+ zr36060_write(ptr, ZR060_SWR_HEND_HI, (reg >> 8) & 0xff);
+ zr36060_write(ptr, ZR060_SWR_HEND_LO, (reg >> 0) & 0xff);
+
+ size = ptr->width * ptr->height;
+ /* Target compressed field size in bits: */
+ size = size * 16; /* uncompressed size in bits */
+ /* (Ronald) by default, quality = 100 is a compression
+ * ratio 1:2. Setting low_bitrate (insmod option) sets
+ * it to 1:4 (instead of 1:2, zr36060 max) as limit because the
+ * buz can't handle more at decimation=1... Use low_bitrate if
+ * you have a Buz, unless you know what you're doing
+ */
+ size = size * cap->quality / (low_bitrate ? 400 : 200);
+ /* Lower limit (arbitrary, 1 KB) */
+ if (size < 8192)
+ size = 8192;
+ /* Upper limit: 7/8 of the code buffers */
+ if (size > ptr->total_code_vol * 7)
+ size = ptr->total_code_vol * 7;
+
+ ptr->real_code_vol = size >> 3; /* in bytes */
+
+ /* the MBCVR is the *maximum* block volume, according to the
+ * JPEG ISO specs, this shouldn't be used, since that allows
+ * for the best encoding quality. So set it to it's max value
+ */
+ reg = ptr->max_block_vol;
+ zr36060_write(ptr, ZR060_MBCVR, reg);
+
+ return 0;
+}
+
+/* additional control functions */
+static int zr36060_control(struct videocodec *codec, int type, int size, void *data)
+{
+ struct zr36060 *ptr = (struct zr36060 *)codec->data;
+ struct zoran *zr = videocodec_to_zoran(codec);
+ int *ival = (int *)data;
+
+ zrdev_dbg(zr, "%s: control %d call with %d byte\n", ptr->name, type,
+ size);
+
+ switch (type) {
+ case CODEC_G_STATUS: /* get last status */
+ if (size != sizeof(int))
+ return -EFAULT;
+ zr36060_read_status(ptr);
+ *ival = ptr->status;
+ break;
+
+ case CODEC_G_CODEC_MODE:
+ if (size != sizeof(int))
+ return -EFAULT;
+ *ival = CODEC_MODE_BJPG;
+ break;
+
+ case CODEC_S_CODEC_MODE:
+ if (size != sizeof(int))
+ return -EFAULT;
+ if (*ival != CODEC_MODE_BJPG)
+ return -EINVAL;
+ /* not needed, do nothing */
+ return 0;
+
+ case CODEC_G_VFE:
+ case CODEC_S_VFE:
+ /* not needed, do nothing */
+ return 0;
+
+ case CODEC_S_MMAP:
+ /* not available, give an error */
+ return -ENXIO;
+
+ case CODEC_G_JPEG_TDS_BYTE: /* get target volume in byte */
+ if (size != sizeof(int))
+ return -EFAULT;
+ *ival = ptr->total_code_vol;
+ break;
+
+ case CODEC_S_JPEG_TDS_BYTE: /* get target volume in byte */
+ if (size != sizeof(int))
+ return -EFAULT;
+ ptr->total_code_vol = *ival;
+ ptr->real_code_vol = (ptr->total_code_vol * 6) >> 3;
+ break;
+
+ case CODEC_G_JPEG_SCALE: /* get scaling factor */
+ if (size != sizeof(int))
+ return -EFAULT;
+ *ival = zr36060_read_scalefactor(ptr);
+ break;
+
+ case CODEC_S_JPEG_SCALE: /* set scaling factor */
+ if (size != sizeof(int))
+ return -EFAULT;
+ ptr->scalefact = *ival;
+ break;
+
+ case CODEC_G_JPEG_APP_DATA: { /* get appn marker data */
+ struct jpeg_app_marker *app = data;
+
+ if (size != sizeof(struct jpeg_app_marker))
+ return -EFAULT;
+
+ *app = ptr->app;
+ break;
+ }
+
+ case CODEC_S_JPEG_APP_DATA: { /* set appn marker data */
+ struct jpeg_app_marker *app = data;
+
+ if (size != sizeof(struct jpeg_app_marker))
+ return -EFAULT;
+
+ ptr->app = *app;
+ break;
+ }
+
+ case CODEC_G_JPEG_COM_DATA: { /* get comment marker data */
+ struct jpeg_com_marker *com = data;
+
+ if (size != sizeof(struct jpeg_com_marker))
+ return -EFAULT;
+
+ *com = ptr->com;
+ break;
+ }
+
+ case CODEC_S_JPEG_COM_DATA: { /* set comment marker data */
+ struct jpeg_com_marker *com = data;
+
+ if (size != sizeof(struct jpeg_com_marker))
+ return -EFAULT;
+
+ ptr->com = *com;
+ break;
+ }
+
+ default:
+ return -EINVAL;
+ }
+
+ return size;
+}
+
+/* =========================================================================
+ * Exit and unregister function:
+ * Deinitializes Zoran's JPEG processor
+ * =========================================================================
+ */
+static int zr36060_unset(struct videocodec *codec)
+{
+ struct zr36060 *ptr = codec->data;
+ struct zoran *zr = videocodec_to_zoran(codec);
+
+ if (ptr) {
+ /* do wee need some codec deinit here, too ???? */
+
+ zrdev_dbg(zr, "%s: finished codec #%d\n", ptr->name, ptr->num);
+ kfree(ptr);
+ codec->data = NULL;
+
+ zr36060_codecs--;
+ return 0;
+ }
+
+ return -EFAULT;
+}
+
+/* =========================================================================
+ * Setup and registry function:
+ * Initializes Zoran's JPEG processor
+ * Also sets pixel size, average code size, mode (compr./decompr.)
+ * (the given size is determined by the processor with the video interface)
+ * =========================================================================
+ */
+static int zr36060_setup(struct videocodec *codec)
+{
+ struct zr36060 *ptr;
+ struct zoran *zr = videocodec_to_zoran(codec);
+ int res;
+
+ zrdev_dbg(zr, "zr36060: initializing MJPEG subsystem #%d.\n",
+ zr36060_codecs);
+
+ if (zr36060_codecs == MAX_CODECS) {
+ zrdev_err(zr, "zr36060: Can't attach more codecs!\n");
+ return -ENOSPC;
+ }
+ //mem structure init
+ ptr = kzalloc(sizeof(*ptr), GFP_KERNEL);
+ codec->data = ptr;
+ if (!ptr)
+ return -ENOMEM;
+
+ snprintf(ptr->name, sizeof(ptr->name), "zr36060[%d]", zr36060_codecs);
+ ptr->num = zr36060_codecs++;
+ ptr->codec = codec;
+
+ //testing
+ res = zr36060_basic_test(ptr);
+ if (res < 0) {
+ zr36060_unset(codec);
+ return res;
+ }
+ //final setup
+ memcpy(ptr->h_samp_ratio, zr36060_decimation_h, 8);
+ memcpy(ptr->v_samp_ratio, zr36060_decimation_v, 8);
+
+ ptr->bitrate_ctrl = 0; /* 0 or 1 - fixed file size flag (what is the difference?) */
+ ptr->mode = CODEC_DO_COMPRESSION;
+ ptr->width = 384;
+ ptr->height = 288;
+ ptr->total_code_vol = 16000; /* CHECKME */
+ ptr->real_code_vol = (ptr->total_code_vol * 6) >> 3;
+ ptr->max_block_vol = 240; /* CHECKME, was 120 is 240 */
+ ptr->scalefact = 0x100;
+ ptr->dri = 1; /* CHECKME, was 8 is 1 */
+
+ /* by default, no COM or APP markers - app should set those */
+ ptr->com.len = 0;
+ ptr->app.appn = 0;
+ ptr->app.len = 0;
+
+ zr36060_init(ptr);
+
+ zrdev_info(zr, "%s: codec attached and running\n", ptr->name);
+
+ return 0;
+}
+
+static const struct videocodec zr36060_codec = {
+ .name = "zr36060",
+ .magic = 0L, // magic not used
+ .flags =
+ CODEC_FLAG_JPEG | CODEC_FLAG_HARDWARE | CODEC_FLAG_ENCODER |
+ CODEC_FLAG_DECODER | CODEC_FLAG_VFE,
+ .type = CODEC_TYPE_ZR36060,
+ .setup = zr36060_setup, // functionality
+ .unset = zr36060_unset,
+ .set_mode = zr36060_set_mode,
+ .set_video = zr36060_set_video,
+ .control = zr36060_control,
+ // others are not used
+};
+
+int zr36060_init_module(void)
+{
+ zr36060_codecs = 0;
+ return videocodec_register(&zr36060_codec);
+}
+
+void zr36060_cleanup_module(void)
+{
+ if (zr36060_codecs) {
+ pr_debug("zr36060: something's wrong - %d codecs left somehow.\n",
+ zr36060_codecs);
+ }
+
+ /* however, we can't just stay alive */
+ videocodec_unregister(&zr36060_codec);
+}