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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/bt8xx/bt878.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/bt8xx/bt878.c')
-rw-r--r--drivers/media/pci/bt8xx/bt878.c566
1 files changed, 566 insertions, 0 deletions
diff --git a/drivers/media/pci/bt8xx/bt878.c b/drivers/media/pci/bt8xx/bt878.c
new file mode 100644
index 000000000..90972d695
--- /dev/null
+++ b/drivers/media/pci/bt8xx/bt878.c
@@ -0,0 +1,566 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * bt878.c: part of the driver for the Pinnacle PCTV Sat DVB PCI card
+ *
+ * Copyright (C) 2002 Peter Hettkamp <peter.hettkamp@htp-tel.de>
+ *
+ * large parts based on the bttv driver
+ * Copyright (C) 1996,97,98 Ralph Metzler (rjkm@metzlerbros.de)
+ * & Marcus Metzler (mocm@metzlerbros.de)
+ * (c) 1999,2000 Gerd Knorr <kraxel@goldbach.in-berlin.de>
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/pgtable.h>
+#include <asm/io.h>
+#include <linux/ioport.h>
+#include <asm/page.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/kmod.h>
+#include <linux/vmalloc.h>
+#include <linux/init.h>
+
+#include <media/dmxdev.h>
+#include <media/dvbdev.h>
+#include "bt878.h"
+#include "dst_priv.h"
+
+
+/**************************************/
+/* Miscellaneous utility definitions */
+/**************************************/
+
+static unsigned int bt878_verbose = 1;
+static unsigned int bt878_debug;
+
+module_param_named(verbose, bt878_verbose, int, 0444);
+MODULE_PARM_DESC(verbose,
+ "verbose startup messages, default is 1 (yes)");
+module_param_named(debug, bt878_debug, int, 0644);
+MODULE_PARM_DESC(debug, "Turn on/off debugging, default is 0 (off).");
+
+int bt878_num;
+struct bt878 bt878[BT878_MAX];
+
+EXPORT_SYMBOL(bt878_num);
+EXPORT_SYMBOL(bt878);
+
+#define btwrite(dat,adr) bmtwrite((dat), (bt->bt878_mem+(adr)))
+#define btread(adr) bmtread(bt->bt878_mem+(adr))
+
+#define btand(dat,adr) btwrite((dat) & btread(adr), adr)
+#define btor(dat,adr) btwrite((dat) | btread(adr), adr)
+#define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
+
+#if defined(dprintk)
+#undef dprintk
+#endif
+#define dprintk(fmt, arg...) \
+ do { \
+ if (bt878_debug) \
+ printk(KERN_DEBUG fmt, ##arg); \
+ } while (0)
+
+static void bt878_mem_free(struct bt878 *bt)
+{
+ if (bt->buf_cpu) {
+ dma_free_coherent(&bt->dev->dev, bt->buf_size, bt->buf_cpu,
+ bt->buf_dma);
+ bt->buf_cpu = NULL;
+ }
+
+ if (bt->risc_cpu) {
+ dma_free_coherent(&bt->dev->dev, bt->risc_size, bt->risc_cpu,
+ bt->risc_dma);
+ bt->risc_cpu = NULL;
+ }
+}
+
+static int bt878_mem_alloc(struct bt878 *bt)
+{
+ if (!bt->buf_cpu) {
+ bt->buf_size = 128 * 1024;
+
+ bt->buf_cpu = dma_alloc_coherent(&bt->dev->dev, bt->buf_size,
+ &bt->buf_dma, GFP_KERNEL);
+ if (!bt->buf_cpu)
+ return -ENOMEM;
+ }
+
+ if (!bt->risc_cpu) {
+ bt->risc_size = PAGE_SIZE;
+ bt->risc_cpu = dma_alloc_coherent(&bt->dev->dev, bt->risc_size,
+ &bt->risc_dma, GFP_KERNEL);
+ if (!bt->risc_cpu) {
+ bt878_mem_free(bt);
+ return -ENOMEM;
+ }
+ }
+
+ return 0;
+}
+
+/* RISC instructions */
+#define RISC_WRITE (0x01 << 28)
+#define RISC_JUMP (0x07 << 28)
+#define RISC_SYNC (0x08 << 28)
+
+/* RISC bits */
+#define RISC_WR_SOL (1 << 27)
+#define RISC_WR_EOL (1 << 26)
+#define RISC_IRQ (1 << 24)
+#define RISC_STATUS(status) ((((~status) & 0x0F) << 20) | ((status & 0x0F) << 16))
+#define RISC_SYNC_RESYNC (1 << 15)
+#define RISC_SYNC_FM1 0x06
+#define RISC_SYNC_VRO 0x0C
+
+#define RISC_FLUSH() bt->risc_pos = 0
+#define RISC_INSTR(instr) bt->risc_cpu[bt->risc_pos++] = cpu_to_le32(instr)
+
+static int bt878_make_risc(struct bt878 *bt)
+{
+ bt->block_bytes = bt->buf_size >> 4;
+ bt->block_count = 1 << 4;
+ bt->line_bytes = bt->block_bytes;
+ bt->line_count = bt->block_count;
+
+ while (bt->line_bytes > 4095) {
+ bt->line_bytes >>= 1;
+ bt->line_count <<= 1;
+ }
+
+ if (bt->line_count > 255) {
+ printk(KERN_ERR "bt878: buffer size error!\n");
+ return -EINVAL;
+ }
+ return 0;
+}
+
+
+static void bt878_risc_program(struct bt878 *bt, u32 op_sync_orin)
+{
+ u32 buf_pos = 0;
+ u32 line;
+
+ RISC_FLUSH();
+ RISC_INSTR(RISC_SYNC | RISC_SYNC_FM1 | op_sync_orin);
+ RISC_INSTR(0);
+
+ dprintk("bt878: risc len lines %u, bytes per line %u\n",
+ bt->line_count, bt->line_bytes);
+ for (line = 0; line < bt->line_count; line++) {
+ // At the beginning of every block we issue an IRQ with previous (finished) block number set
+ if (!(buf_pos % bt->block_bytes))
+ RISC_INSTR(RISC_WRITE | RISC_WR_SOL | RISC_WR_EOL |
+ RISC_IRQ |
+ RISC_STATUS(((buf_pos /
+ bt->block_bytes) +
+ (bt->block_count -
+ 1)) %
+ bt->block_count) | bt->
+ line_bytes);
+ else
+ RISC_INSTR(RISC_WRITE | RISC_WR_SOL | RISC_WR_EOL |
+ bt->line_bytes);
+ RISC_INSTR(bt->buf_dma + buf_pos);
+ buf_pos += bt->line_bytes;
+ }
+
+ RISC_INSTR(RISC_SYNC | op_sync_orin | RISC_SYNC_VRO);
+ RISC_INSTR(0);
+
+ RISC_INSTR(RISC_JUMP);
+ RISC_INSTR(bt->risc_dma);
+
+ btwrite((bt->line_count << 16) | bt->line_bytes, BT878_APACK_LEN);
+}
+
+/*****************************/
+/* Start/Stop grabbing funcs */
+/*****************************/
+
+void bt878_start(struct bt878 *bt, u32 controlreg, u32 op_sync_orin,
+ u32 irq_err_ignore)
+{
+ u32 int_mask;
+
+ dprintk("bt878 debug: bt878_start (ctl=%8.8x)\n", controlreg);
+ /* complete the writing of the risc dma program now we have
+ * the card specifics
+ */
+ bt878_risc_program(bt, op_sync_orin);
+ controlreg &= ~0x1f;
+ controlreg |= 0x1b;
+
+ btwrite(bt->risc_dma, BT878_ARISC_START);
+
+ /* original int mask had :
+ * 6 2 8 4 0
+ * 1111 1111 1000 0000 0000
+ * SCERR|OCERR|PABORT|RIPERR|FDSR|FTRGT|FBUS|RISCI
+ * Hacked for DST to:
+ * SCERR | OCERR | FDSR | FTRGT | FBUS | RISCI
+ */
+ int_mask = BT878_ASCERR | BT878_AOCERR | BT878_APABORT |
+ BT878_ARIPERR | BT878_APPERR | BT878_AFDSR | BT878_AFTRGT |
+ BT878_AFBUS | BT878_ARISCI;
+
+
+ /* ignore pesky bits */
+ int_mask &= ~irq_err_ignore;
+
+ btwrite(int_mask, BT878_AINT_MASK);
+ btwrite(controlreg, BT878_AGPIO_DMA_CTL);
+}
+
+void bt878_stop(struct bt878 *bt)
+{
+ u32 stat;
+ int i = 0;
+
+ dprintk("bt878 debug: bt878_stop\n");
+
+ btwrite(0, BT878_AINT_MASK);
+ btand(~0x13, BT878_AGPIO_DMA_CTL);
+
+ do {
+ stat = btread(BT878_AINT_STAT);
+ if (!(stat & BT878_ARISC_EN))
+ break;
+ i++;
+ } while (i < 500);
+
+ dprintk("bt878(%d) debug: bt878_stop, i=%d, stat=0x%8.8x\n",
+ bt->nr, i, stat);
+}
+
+EXPORT_SYMBOL(bt878_start);
+EXPORT_SYMBOL(bt878_stop);
+
+/*****************************/
+/* Interrupt service routine */
+/*****************************/
+
+static irqreturn_t bt878_irq(int irq, void *dev_id)
+{
+ u32 stat, astat, mask;
+ int count;
+ struct bt878 *bt;
+
+ bt = (struct bt878 *) dev_id;
+
+ count = 0;
+ while (1) {
+ stat = btread(BT878_AINT_STAT);
+ mask = btread(BT878_AINT_MASK);
+ if (!(astat = (stat & mask)))
+ return IRQ_NONE; /* this interrupt is not for me */
+/* dprintk("bt878(%d) debug: irq count %d, stat 0x%8.8x, mask 0x%8.8x\n",bt->nr,count,stat,mask); */
+ btwrite(astat, BT878_AINT_STAT); /* try to clear interrupt condition */
+
+
+ if (astat & (BT878_ASCERR | BT878_AOCERR)) {
+ if (bt878_verbose) {
+ printk(KERN_INFO
+ "bt878(%d): irq%s%s risc_pc=%08x\n",
+ bt->nr,
+ (astat & BT878_ASCERR) ? " SCERR" :
+ "",
+ (astat & BT878_AOCERR) ? " OCERR" :
+ "", btread(BT878_ARISC_PC));
+ }
+ }
+ if (astat & (BT878_APABORT | BT878_ARIPERR | BT878_APPERR)) {
+ if (bt878_verbose) {
+ printk(KERN_INFO
+ "bt878(%d): irq%s%s%s risc_pc=%08x\n",
+ bt->nr,
+ (astat & BT878_APABORT) ? " PABORT" :
+ "",
+ (astat & BT878_ARIPERR) ? " RIPERR" :
+ "",
+ (astat & BT878_APPERR) ? " PPERR" :
+ "", btread(BT878_ARISC_PC));
+ }
+ }
+ if (astat & (BT878_AFDSR | BT878_AFTRGT | BT878_AFBUS)) {
+ if (bt878_verbose) {
+ printk(KERN_INFO
+ "bt878(%d): irq%s%s%s risc_pc=%08x\n",
+ bt->nr,
+ (astat & BT878_AFDSR) ? " FDSR" : "",
+ (astat & BT878_AFTRGT) ? " FTRGT" :
+ "",
+ (astat & BT878_AFBUS) ? " FBUS" : "",
+ btread(BT878_ARISC_PC));
+ }
+ }
+ if (astat & BT878_ARISCI) {
+ bt->finished_block = (stat & BT878_ARISCS) >> 28;
+ if (bt->tasklet.callback)
+ tasklet_schedule(&bt->tasklet);
+ break;
+ }
+ count++;
+ if (count > 20) {
+ btwrite(0, BT878_AINT_MASK);
+ printk(KERN_ERR
+ "bt878(%d): IRQ lockup, cleared int mask\n",
+ bt->nr);
+ break;
+ }
+ }
+ return IRQ_HANDLED;
+}
+
+int
+bt878_device_control(struct bt878 *bt, unsigned int cmd, union dst_gpio_packet *mp)
+{
+ int retval;
+
+ retval = 0;
+ if (mutex_lock_interruptible(&bt->gpio_lock))
+ return -ERESTARTSYS;
+ /* special gpio signal */
+ switch (cmd) {
+ case DST_IG_ENABLE:
+ // dprintk("dvb_bt8xx: dst enable mask 0x%02x enb 0x%02x \n", mp->dstg.enb.mask, mp->dstg.enb.enable);
+ retval = bttv_gpio_enable(bt->bttv_nr,
+ mp->enb.mask,
+ mp->enb.enable);
+ break;
+ case DST_IG_WRITE:
+ // dprintk("dvb_bt8xx: dst write gpio mask 0x%02x out 0x%02x\n", mp->dstg.outp.mask, mp->dstg.outp.highvals);
+ retval = bttv_write_gpio(bt->bttv_nr,
+ mp->outp.mask,
+ mp->outp.highvals);
+
+ break;
+ case DST_IG_READ:
+ /* read */
+ retval = bttv_read_gpio(bt->bttv_nr, &mp->rd.value);
+ // dprintk("dvb_bt8xx: dst read gpio 0x%02x\n", (unsigned)mp->dstg.rd.value);
+ break;
+ case DST_IG_TS:
+ /* Set packet size */
+ bt->TS_Size = mp->psize;
+ break;
+
+ default:
+ retval = -EINVAL;
+ break;
+ }
+ mutex_unlock(&bt->gpio_lock);
+ return retval;
+}
+
+EXPORT_SYMBOL(bt878_device_control);
+
+#define BROOKTREE_878_DEVICE(vend, dev, name) \
+ { \
+ .vendor = PCI_VENDOR_ID_BROOKTREE, \
+ .device = PCI_DEVICE_ID_BROOKTREE_878, \
+ .subvendor = (vend), .subdevice = (dev), \
+ .driver_data = (unsigned long) name \
+ }
+
+static const struct pci_device_id bt878_pci_tbl[] = {
+ BROOKTREE_878_DEVICE(0x0071, 0x0101, "Nebula Electronics DigiTV"),
+ BROOKTREE_878_DEVICE(0x1461, 0x0761, "AverMedia AverTV DVB-T 761"),
+ BROOKTREE_878_DEVICE(0x11bd, 0x001c, "Pinnacle PCTV Sat"),
+ BROOKTREE_878_DEVICE(0x11bd, 0x0026, "Pinnacle PCTV SAT CI"),
+ BROOKTREE_878_DEVICE(0x1822, 0x0001, "Twinhan VisionPlus DVB"),
+ BROOKTREE_878_DEVICE(0x270f, 0xfc00,
+ "ChainTech digitop DST-1000 DVB-S"),
+ BROOKTREE_878_DEVICE(0x1461, 0x0771, "AVermedia AverTV DVB-T 771"),
+ BROOKTREE_878_DEVICE(0x18ac, 0xdb10, "DViCO FusionHDTV DVB-T Lite"),
+ BROOKTREE_878_DEVICE(0x18ac, 0xdb11, "Ultraview DVB-T Lite"),
+ BROOKTREE_878_DEVICE(0x18ac, 0xd500, "DViCO FusionHDTV 5 Lite"),
+ BROOKTREE_878_DEVICE(0x7063, 0x2000, "pcHDTV HD-2000 TV"),
+ BROOKTREE_878_DEVICE(0x1822, 0x0026, "DNTV Live! Mini"),
+ { }
+};
+
+MODULE_DEVICE_TABLE(pci, bt878_pci_tbl);
+
+static const char * card_name(const struct pci_device_id *id)
+{
+ return id->driver_data ? (const char *)id->driver_data : "Unknown";
+}
+
+/***********************/
+/* PCI device handling */
+/***********************/
+
+static int bt878_probe(struct pci_dev *dev, const struct pci_device_id *pci_id)
+{
+ int result = 0;
+ unsigned char lat;
+ struct bt878 *bt;
+ unsigned int cardid;
+
+ printk(KERN_INFO "bt878: Bt878 AUDIO function found (%d).\n",
+ bt878_num);
+ if (bt878_num >= BT878_MAX) {
+ printk(KERN_ERR "bt878: Too many devices inserted\n");
+ return -ENOMEM;
+ }
+ if (pci_enable_device(dev))
+ return -EIO;
+
+ cardid = dev->subsystem_device << 16;
+ cardid |= dev->subsystem_vendor;
+
+ printk(KERN_INFO "%s: card id=[0x%x],[ %s ] has DVB functions.\n",
+ __func__, cardid, card_name(pci_id));
+
+ bt = &bt878[bt878_num];
+ bt->dev = dev;
+ bt->nr = bt878_num;
+ bt->shutdown = 0;
+
+ bt->id = dev->device;
+ bt->irq = dev->irq;
+ bt->bt878_adr = pci_resource_start(dev, 0);
+ if (!request_mem_region(pci_resource_start(dev, 0),
+ pci_resource_len(dev, 0), "bt878")) {
+ result = -EBUSY;
+ goto fail0;
+ }
+
+ bt->revision = dev->revision;
+ pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
+
+
+ printk(KERN_INFO "bt878(%d): Bt%x (rev %d) at %02x:%02x.%x, ",
+ bt878_num, bt->id, bt->revision, dev->bus->number,
+ PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
+ printk("irq: %d, latency: %d, memory: 0x%lx\n",
+ bt->irq, lat, bt->bt878_adr);
+
+#ifdef __sparc__
+ bt->bt878_mem = (unsigned char *) bt->bt878_adr;
+#else
+ bt->bt878_mem = ioremap(bt->bt878_adr, 0x1000);
+#endif
+
+ /* clear interrupt mask */
+ btwrite(0, BT848_INT_MASK);
+
+ result = request_irq(bt->irq, bt878_irq,
+ IRQF_SHARED, "bt878", (void *) bt);
+ if (result == -EINVAL) {
+ printk(KERN_ERR "bt878(%d): Bad irq number or handler\n",
+ bt878_num);
+ goto fail1;
+ }
+ if (result == -EBUSY) {
+ printk(KERN_ERR
+ "bt878(%d): IRQ %d busy, change your PnP config in BIOS\n",
+ bt878_num, bt->irq);
+ goto fail1;
+ }
+ if (result < 0)
+ goto fail1;
+
+ pci_set_master(dev);
+ pci_set_drvdata(dev, bt);
+
+ if ((result = bt878_mem_alloc(bt))) {
+ printk(KERN_ERR "bt878: failed to allocate memory!\n");
+ goto fail2;
+ }
+
+ bt878_make_risc(bt);
+ btwrite(0, BT878_AINT_MASK);
+ bt878_num++;
+
+ if (!bt->tasklet.func)
+ tasklet_disable(&bt->tasklet);
+
+ return 0;
+
+ fail2:
+ free_irq(bt->irq, bt);
+ fail1:
+ release_mem_region(pci_resource_start(bt->dev, 0),
+ pci_resource_len(bt->dev, 0));
+ fail0:
+ pci_disable_device(dev);
+ return result;
+}
+
+static void bt878_remove(struct pci_dev *pci_dev)
+{
+ u8 command;
+ struct bt878 *bt = pci_get_drvdata(pci_dev);
+
+ if (bt878_verbose)
+ printk(KERN_INFO "bt878(%d): unloading\n", bt->nr);
+
+ /* turn off all capturing, DMA and IRQs */
+ btand(~0x13, BT878_AGPIO_DMA_CTL);
+
+ /* first disable interrupts before unmapping the memory! */
+ btwrite(0, BT878_AINT_MASK);
+ btwrite(~0U, BT878_AINT_STAT);
+
+ /* disable PCI bus-mastering */
+ pci_read_config_byte(bt->dev, PCI_COMMAND, &command);
+ /* Should this be &=~ ?? */
+ command &= ~PCI_COMMAND_MASTER;
+ pci_write_config_byte(bt->dev, PCI_COMMAND, command);
+
+ free_irq(bt->irq, bt);
+ printk(KERN_DEBUG "bt878_mem: 0x%p.\n", bt->bt878_mem);
+ if (bt->bt878_mem)
+ iounmap(bt->bt878_mem);
+
+ release_mem_region(pci_resource_start(bt->dev, 0),
+ pci_resource_len(bt->dev, 0));
+ /* wake up any waiting processes
+ because shutdown flag is set, no new processes (in this queue)
+ are expected
+ */
+ bt->shutdown = 1;
+ bt878_mem_free(bt);
+
+ pci_disable_device(pci_dev);
+ return;
+}
+
+static struct pci_driver bt878_pci_driver = {
+ .name = "bt878",
+ .id_table = bt878_pci_tbl,
+ .probe = bt878_probe,
+ .remove = bt878_remove,
+};
+
+/*******************************/
+/* Module management functions */
+/*******************************/
+
+static int __init bt878_init_module(void)
+{
+ bt878_num = 0;
+
+ printk(KERN_INFO "bt878: AUDIO driver version %d.%d.%d loaded\n",
+ (BT878_VERSION_CODE >> 16) & 0xff,
+ (BT878_VERSION_CODE >> 8) & 0xff,
+ BT878_VERSION_CODE & 0xff);
+
+ return pci_register_driver(&bt878_pci_driver);
+}
+
+static void __exit bt878_cleanup_module(void)
+{
+ pci_unregister_driver(&bt878_pci_driver);
+}
+
+module_init(bt878_init_module);
+module_exit(bt878_cleanup_module);
+
+MODULE_LICENSE("GPL");