aboutsummaryrefslogtreecommitdiff
path: root/drivers/media/dvb-frontends/lgs8gl5.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/dvb-frontends/lgs8gl5.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/dvb-frontends/lgs8gl5.c')
-rw-r--r--drivers/media/dvb-frontends/lgs8gl5.c441
1 files changed, 441 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/lgs8gl5.c b/drivers/media/dvb-frontends/lgs8gl5.c
new file mode 100644
index 000000000..872abb70d
--- /dev/null
+++ b/drivers/media/dvb-frontends/lgs8gl5.c
@@ -0,0 +1,441 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ Legend Silicon LGS-8GL5 DMB-TH OFDM demodulator driver
+
+ Copyright (C) 2008 Sirius International (Hong Kong) Limited
+ Timothy Lee <timothy.lee@siriushk.com>
+
+
+*/
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <media/dvb_frontend.h>
+#include "lgs8gl5.h"
+
+
+#define REG_RESET 0x02
+#define REG_RESET_OFF 0x01
+#define REG_03 0x03
+#define REG_04 0x04
+#define REG_07 0x07
+#define REG_09 0x09
+#define REG_0A 0x0a
+#define REG_0B 0x0b
+#define REG_0C 0x0c
+#define REG_37 0x37
+#define REG_STRENGTH 0x4b
+#define REG_STRENGTH_MASK 0x7f
+#define REG_STRENGTH_CARRIER 0x80
+#define REG_INVERSION 0x7c
+#define REG_INVERSION_ON 0x80
+#define REG_7D 0x7d
+#define REG_7E 0x7e
+#define REG_A2 0xa2
+#define REG_STATUS 0xa4
+#define REG_STATUS_SYNC 0x04
+#define REG_STATUS_LOCK 0x01
+
+
+struct lgs8gl5_state {
+ struct i2c_adapter *i2c;
+ const struct lgs8gl5_config *config;
+ struct dvb_frontend frontend;
+};
+
+
+static int debug;
+#define dprintk(args...) \
+ do { \
+ if (debug) \
+ printk(KERN_DEBUG "lgs8gl5: " args); \
+ } while (0)
+
+
+/* Writes into demod's register */
+static int
+lgs8gl5_write_reg(struct lgs8gl5_state *state, u8 reg, u8 data)
+{
+ int ret;
+ u8 buf[] = {reg, data};
+ struct i2c_msg msg = {
+ .addr = state->config->demod_address,
+ .flags = 0,
+ .buf = buf,
+ .len = 2
+ };
+
+ ret = i2c_transfer(state->i2c, &msg, 1);
+ if (ret != 1)
+ dprintk("%s: error (reg=0x%02x, val=0x%02x, ret=%i)\n",
+ __func__, reg, data, ret);
+ return (ret != 1) ? -1 : 0;
+}
+
+
+/* Reads from demod's register */
+static int
+lgs8gl5_read_reg(struct lgs8gl5_state *state, u8 reg)
+{
+ int ret;
+ u8 b0[] = {reg};
+ u8 b1[] = {0};
+ struct i2c_msg msg[2] = {
+ {
+ .addr = state->config->demod_address,
+ .flags = 0,
+ .buf = b0,
+ .len = 1
+ },
+ {
+ .addr = state->config->demod_address,
+ .flags = I2C_M_RD,
+ .buf = b1,
+ .len = 1
+ }
+ };
+
+ ret = i2c_transfer(state->i2c, msg, 2);
+ if (ret != 2)
+ return -EIO;
+
+ return b1[0];
+}
+
+
+static int
+lgs8gl5_update_reg(struct lgs8gl5_state *state, u8 reg, u8 data)
+{
+ lgs8gl5_read_reg(state, reg);
+ lgs8gl5_write_reg(state, reg, data);
+ return 0;
+}
+
+
+/* Writes into alternate device's register */
+/* TODO: Find out what that device is for! */
+static int
+lgs8gl5_update_alt_reg(struct lgs8gl5_state *state, u8 reg, u8 data)
+{
+ int ret;
+ u8 b0[] = {reg};
+ u8 b1[] = {0};
+ u8 b2[] = {reg, data};
+ struct i2c_msg msg[3] = {
+ {
+ .addr = state->config->demod_address + 2,
+ .flags = 0,
+ .buf = b0,
+ .len = 1
+ },
+ {
+ .addr = state->config->demod_address + 2,
+ .flags = I2C_M_RD,
+ .buf = b1,
+ .len = 1
+ },
+ {
+ .addr = state->config->demod_address + 2,
+ .flags = 0,
+ .buf = b2,
+ .len = 2
+ },
+ };
+
+ ret = i2c_transfer(state->i2c, msg, 3);
+ return (ret != 3) ? -1 : 0;
+}
+
+
+static void
+lgs8gl5_soft_reset(struct lgs8gl5_state *state)
+{
+ u8 val;
+
+ dprintk("%s\n", __func__);
+
+ val = lgs8gl5_read_reg(state, REG_RESET);
+ lgs8gl5_write_reg(state, REG_RESET, val & ~REG_RESET_OFF);
+ lgs8gl5_write_reg(state, REG_RESET, val | REG_RESET_OFF);
+ msleep(5);
+}
+
+
+/* Starts demodulation */
+static void
+lgs8gl5_start_demod(struct lgs8gl5_state *state)
+{
+ u8 val;
+ int n;
+
+ dprintk("%s\n", __func__);
+
+ lgs8gl5_update_alt_reg(state, 0xc2, 0x28);
+ lgs8gl5_soft_reset(state);
+ lgs8gl5_update_reg(state, REG_07, 0x10);
+ lgs8gl5_update_reg(state, REG_07, 0x10);
+ lgs8gl5_write_reg(state, REG_09, 0x0e);
+ lgs8gl5_write_reg(state, REG_0A, 0xe5);
+ lgs8gl5_write_reg(state, REG_0B, 0x35);
+ lgs8gl5_write_reg(state, REG_0C, 0x30);
+
+ lgs8gl5_update_reg(state, REG_03, 0x00);
+ lgs8gl5_update_reg(state, REG_7E, 0x01);
+ lgs8gl5_update_alt_reg(state, 0xc5, 0x00);
+ lgs8gl5_update_reg(state, REG_04, 0x02);
+ lgs8gl5_update_reg(state, REG_37, 0x01);
+ lgs8gl5_soft_reset(state);
+
+ /* Wait for carrier */
+ for (n = 0; n < 10; n++) {
+ val = lgs8gl5_read_reg(state, REG_STRENGTH);
+ dprintk("Wait for carrier[%d] 0x%02X\n", n, val);
+ if (val & REG_STRENGTH_CARRIER)
+ break;
+ msleep(4);
+ }
+ if (!(val & REG_STRENGTH_CARRIER))
+ return;
+
+ /* Wait for lock */
+ for (n = 0; n < 20; n++) {
+ val = lgs8gl5_read_reg(state, REG_STATUS);
+ dprintk("Wait for lock[%d] 0x%02X\n", n, val);
+ if (val & REG_STATUS_LOCK)
+ break;
+ msleep(12);
+ }
+ if (!(val & REG_STATUS_LOCK))
+ return;
+
+ lgs8gl5_write_reg(state, REG_7D, lgs8gl5_read_reg(state, REG_A2));
+ lgs8gl5_soft_reset(state);
+}
+
+
+static int
+lgs8gl5_init(struct dvb_frontend *fe)
+{
+ struct lgs8gl5_state *state = fe->demodulator_priv;
+
+ dprintk("%s\n", __func__);
+
+ lgs8gl5_update_alt_reg(state, 0xc2, 0x28);
+ lgs8gl5_soft_reset(state);
+ lgs8gl5_update_reg(state, REG_07, 0x10);
+ lgs8gl5_update_reg(state, REG_07, 0x10);
+ lgs8gl5_write_reg(state, REG_09, 0x0e);
+ lgs8gl5_write_reg(state, REG_0A, 0xe5);
+ lgs8gl5_write_reg(state, REG_0B, 0x35);
+ lgs8gl5_write_reg(state, REG_0C, 0x30);
+
+ return 0;
+}
+
+
+static int
+lgs8gl5_read_status(struct dvb_frontend *fe, enum fe_status *status)
+{
+ struct lgs8gl5_state *state = fe->demodulator_priv;
+ u8 level = lgs8gl5_read_reg(state, REG_STRENGTH);
+ u8 flags = lgs8gl5_read_reg(state, REG_STATUS);
+
+ *status = 0;
+
+ if ((level & REG_STRENGTH_MASK) > 0)
+ *status |= FE_HAS_SIGNAL;
+ if (level & REG_STRENGTH_CARRIER)
+ *status |= FE_HAS_CARRIER;
+ if (flags & REG_STATUS_SYNC)
+ *status |= FE_HAS_SYNC;
+ if (flags & REG_STATUS_LOCK)
+ *status |= FE_HAS_LOCK;
+
+ return 0;
+}
+
+
+static int
+lgs8gl5_read_ber(struct dvb_frontend *fe, u32 *ber)
+{
+ *ber = 0;
+
+ return 0;
+}
+
+
+static int
+lgs8gl5_read_signal_strength(struct dvb_frontend *fe, u16 *signal_strength)
+{
+ struct lgs8gl5_state *state = fe->demodulator_priv;
+ u8 level = lgs8gl5_read_reg(state, REG_STRENGTH);
+ *signal_strength = (level & REG_STRENGTH_MASK) << 8;
+
+ return 0;
+}
+
+
+static int
+lgs8gl5_read_snr(struct dvb_frontend *fe, u16 *snr)
+{
+ struct lgs8gl5_state *state = fe->demodulator_priv;
+ u8 level = lgs8gl5_read_reg(state, REG_STRENGTH);
+ *snr = (level & REG_STRENGTH_MASK) << 8;
+
+ return 0;
+}
+
+
+static int
+lgs8gl5_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
+{
+ *ucblocks = 0;
+
+ return 0;
+}
+
+
+static int
+lgs8gl5_set_frontend(struct dvb_frontend *fe)
+{
+ struct dtv_frontend_properties *p = &fe->dtv_property_cache;
+ struct lgs8gl5_state *state = fe->demodulator_priv;
+
+ dprintk("%s\n", __func__);
+
+ if (p->bandwidth_hz != 8000000)
+ return -EINVAL;
+
+ if (fe->ops.tuner_ops.set_params) {
+ fe->ops.tuner_ops.set_params(fe);
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 0);
+ }
+
+ /* lgs8gl5_set_inversion(state, p->inversion); */
+
+ lgs8gl5_start_demod(state);
+
+ return 0;
+}
+
+
+static int
+lgs8gl5_get_frontend(struct dvb_frontend *fe,
+ struct dtv_frontend_properties *p)
+{
+ struct lgs8gl5_state *state = fe->demodulator_priv;
+
+ u8 inv = lgs8gl5_read_reg(state, REG_INVERSION);
+
+ p->inversion = (inv & REG_INVERSION_ON) ? INVERSION_ON : INVERSION_OFF;
+
+ p->code_rate_HP = FEC_1_2;
+ p->code_rate_LP = FEC_7_8;
+ p->guard_interval = GUARD_INTERVAL_1_32;
+ p->transmission_mode = TRANSMISSION_MODE_2K;
+ p->modulation = QAM_64;
+ p->hierarchy = HIERARCHY_NONE;
+ p->bandwidth_hz = 8000000;
+
+ return 0;
+}
+
+
+static int
+lgs8gl5_get_tune_settings(struct dvb_frontend *fe,
+ struct dvb_frontend_tune_settings *fesettings)
+{
+ fesettings->min_delay_ms = 240;
+ fesettings->step_size = 0;
+ fesettings->max_drift = 0;
+ return 0;
+}
+
+
+static void
+lgs8gl5_release(struct dvb_frontend *fe)
+{
+ struct lgs8gl5_state *state = fe->demodulator_priv;
+ kfree(state);
+}
+
+
+static const struct dvb_frontend_ops lgs8gl5_ops;
+
+
+struct dvb_frontend*
+lgs8gl5_attach(const struct lgs8gl5_config *config, struct i2c_adapter *i2c)
+{
+ struct lgs8gl5_state *state = NULL;
+
+ dprintk("%s\n", __func__);
+
+ /* Allocate memory for the internal state */
+ state = kzalloc(sizeof(struct lgs8gl5_state), GFP_KERNEL);
+ if (state == NULL)
+ goto error;
+
+ /* Setup the state */
+ state->config = config;
+ state->i2c = i2c;
+
+ /* Check if the demod is there */
+ if (lgs8gl5_read_reg(state, REG_RESET) < 0)
+ goto error;
+
+ /* Create dvb_frontend */
+ memcpy(&state->frontend.ops, &lgs8gl5_ops,
+ sizeof(struct dvb_frontend_ops));
+ state->frontend.demodulator_priv = state;
+ return &state->frontend;
+
+error:
+ kfree(state);
+ return NULL;
+}
+EXPORT_SYMBOL(lgs8gl5_attach);
+
+
+static const struct dvb_frontend_ops lgs8gl5_ops = {
+ .delsys = { SYS_DTMB },
+ .info = {
+ .name = "Legend Silicon LGS-8GL5 DMB-TH",
+ .frequency_min_hz = 474 * MHz,
+ .frequency_max_hz = 858 * MHz,
+ .frequency_stepsize_hz = 10 * kHz,
+ .caps = FE_CAN_FEC_AUTO |
+ FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_32 |
+ FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
+ FE_CAN_TRANSMISSION_MODE_AUTO |
+ FE_CAN_BANDWIDTH_AUTO |
+ FE_CAN_GUARD_INTERVAL_AUTO |
+ FE_CAN_HIERARCHY_AUTO |
+ FE_CAN_RECOVER
+ },
+
+ .release = lgs8gl5_release,
+
+ .init = lgs8gl5_init,
+
+ .set_frontend = lgs8gl5_set_frontend,
+ .get_frontend = lgs8gl5_get_frontend,
+ .get_tune_settings = lgs8gl5_get_tune_settings,
+
+ .read_status = lgs8gl5_read_status,
+ .read_ber = lgs8gl5_read_ber,
+ .read_signal_strength = lgs8gl5_read_signal_strength,
+ .read_snr = lgs8gl5_read_snr,
+ .read_ucblocks = lgs8gl5_read_ucblocks,
+};
+
+
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
+
+MODULE_DESCRIPTION("Legend Silicon LGS-8GL5 DMB-TH Demodulator driver");
+MODULE_AUTHOR("Timothy Lee");
+MODULE_LICENSE("GPL");