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| author | 2023-02-21 18:24:12 -0800 | |
|---|---|---|
| committer | 2023-02-21 18:24:12 -0800 | |
| commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
| tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/media/tuners/tda9887.c | |
| download | linux-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 '')
| -rw-r--r-- | drivers/media/tuners/tda9887.c | 710 |
1 files changed, 710 insertions, 0 deletions
diff --git a/drivers/media/tuners/tda9887.c b/drivers/media/tuners/tda9887.c new file mode 100644 index 000000000..dca2fc776 --- /dev/null +++ b/drivers/media/tuners/tda9887.c @@ -0,0 +1,710 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/i2c.h> +#include <linux/types.h> +#include <linux/init.h> +#include <linux/errno.h> +#include <linux/delay.h> +#include <linux/videodev2.h> +#include <media/v4l2-common.h> +#include <media/tuner.h> +#include "tuner-i2c.h" +#include "tda9887.h" + + +/* Chips: + TDA9885 (PAL, NTSC) + TDA9886 (PAL, SECAM, NTSC) + TDA9887 (PAL, SECAM, NTSC, FM Radio) + + Used as part of several tuners +*/ + +static int debug; +module_param(debug, int, 0644); +MODULE_PARM_DESC(debug, "enable verbose debug messages"); + +static DEFINE_MUTEX(tda9887_list_mutex); +static LIST_HEAD(hybrid_tuner_instance_list); + +struct tda9887_priv { + struct tuner_i2c_props i2c_props; + struct list_head hybrid_tuner_instance_list; + + unsigned char data[4]; + unsigned int config; + unsigned int mode; + unsigned int audmode; + v4l2_std_id std; + + bool standby; +}; + +/* ---------------------------------------------------------------------- */ + +#define UNSET (-1U) + +struct tvnorm { + v4l2_std_id std; + char *name; + unsigned char b; + unsigned char c; + unsigned char e; +}; + +/* ---------------------------------------------------------------------- */ + +// +// TDA defines +// + +//// first reg (b) +#define cVideoTrapBypassOFF 0x00 // bit b0 +#define cVideoTrapBypassON 0x01 // bit b0 + +#define cAutoMuteFmInactive 0x00 // bit b1 +#define cAutoMuteFmActive 0x02 // bit b1 + +#define cIntercarrier 0x00 // bit b2 +#define cQSS 0x04 // bit b2 + +#define cPositiveAmTV 0x00 // bit b3:4 +#define cFmRadio 0x08 // bit b3:4 +#define cNegativeFmTV 0x10 // bit b3:4 + + +#define cForcedMuteAudioON 0x20 // bit b5 +#define cForcedMuteAudioOFF 0x00 // bit b5 + +#define cOutputPort1Active 0x00 // bit b6 +#define cOutputPort1Inactive 0x40 // bit b6 + +#define cOutputPort2Active 0x00 // bit b7 +#define cOutputPort2Inactive 0x80 // bit b7 + + +//// second reg (c) +#define cDeemphasisOFF 0x00 // bit c5 +#define cDeemphasisON 0x20 // bit c5 + +#define cDeemphasis75 0x00 // bit c6 +#define cDeemphasis50 0x40 // bit c6 + +#define cAudioGain0 0x00 // bit c7 +#define cAudioGain6 0x80 // bit c7 + +#define cTopMask 0x1f // bit c0:4 +#define cTopDefault 0x10 // bit c0:4 + +//// third reg (e) +#define cAudioIF_4_5 0x00 // bit e0:1 +#define cAudioIF_5_5 0x01 // bit e0:1 +#define cAudioIF_6_0 0x02 // bit e0:1 +#define cAudioIF_6_5 0x03 // bit e0:1 + + +#define cVideoIFMask 0x1c // bit e2:4 +/* Video IF selection in TV Mode (bit B3=0) */ +#define cVideoIF_58_75 0x00 // bit e2:4 +#define cVideoIF_45_75 0x04 // bit e2:4 +#define cVideoIF_38_90 0x08 // bit e2:4 +#define cVideoIF_38_00 0x0C // bit e2:4 +#define cVideoIF_33_90 0x10 // bit e2:4 +#define cVideoIF_33_40 0x14 // bit e2:4 +#define cRadioIF_45_75 0x18 // bit e2:4 +#define cRadioIF_38_90 0x1C // bit e2:4 + +/* IF1 selection in Radio Mode (bit B3=1) */ +#define cRadioIF_33_30 0x00 // bit e2,4 (also 0x10,0x14) +#define cRadioIF_41_30 0x04 // bit e2,4 + +/* Output of AFC pin in radio mode when bit E7=1 */ +#define cRadioAGC_SIF 0x00 // bit e3 +#define cRadioAGC_FM 0x08 // bit e3 + +#define cTunerGainNormal 0x00 // bit e5 +#define cTunerGainLow 0x20 // bit e5 + +#define cGating_18 0x00 // bit e6 +#define cGating_36 0x40 // bit e6 + +#define cAgcOutON 0x80 // bit e7 +#define cAgcOutOFF 0x00 // bit e7 + +/* ---------------------------------------------------------------------- */ + +static struct tvnorm tvnorms[] = { + { + .std = V4L2_STD_PAL_BG | V4L2_STD_PAL_H | V4L2_STD_PAL_N, + .name = "PAL-BGHN", + .b = ( cNegativeFmTV | + cQSS ), + .c = ( cDeemphasisON | + cDeemphasis50 | + cTopDefault), + .e = ( cGating_36 | + cAudioIF_5_5 | + cVideoIF_38_90 ), + },{ + .std = V4L2_STD_PAL_I, + .name = "PAL-I", + .b = ( cNegativeFmTV | + cQSS ), + .c = ( cDeemphasisON | + cDeemphasis50 | + cTopDefault), + .e = ( cGating_36 | + cAudioIF_6_0 | + cVideoIF_38_90 ), + },{ + .std = V4L2_STD_PAL_DK, + .name = "PAL-DK", + .b = ( cNegativeFmTV | + cQSS ), + .c = ( cDeemphasisON | + cDeemphasis50 | + cTopDefault), + .e = ( cGating_36 | + cAudioIF_6_5 | + cVideoIF_38_90 ), + },{ + .std = V4L2_STD_PAL_M | V4L2_STD_PAL_Nc, + .name = "PAL-M/Nc", + .b = ( cNegativeFmTV | + cQSS ), + .c = ( cDeemphasisON | + cDeemphasis75 | + cTopDefault), + .e = ( cGating_36 | + cAudioIF_4_5 | + cVideoIF_45_75 ), + },{ + .std = V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H, + .name = "SECAM-BGH", + .b = ( cNegativeFmTV | + cQSS ), + .c = ( cTopDefault), + .e = ( cAudioIF_5_5 | + cVideoIF_38_90 ), + },{ + .std = V4L2_STD_SECAM_L, + .name = "SECAM-L", + .b = ( cPositiveAmTV | + cQSS ), + .c = ( cTopDefault), + .e = ( cGating_36 | + cAudioIF_6_5 | + cVideoIF_38_90 ), + },{ + .std = V4L2_STD_SECAM_LC, + .name = "SECAM-L'", + .b = ( cOutputPort2Inactive | + cPositiveAmTV | + cQSS ), + .c = ( cTopDefault), + .e = ( cGating_36 | + cAudioIF_6_5 | + cVideoIF_33_90 ), + },{ + .std = V4L2_STD_SECAM_DK, + .name = "SECAM-DK", + .b = ( cNegativeFmTV | + cQSS ), + .c = ( cDeemphasisON | + cDeemphasis50 | + cTopDefault), + .e = ( cGating_36 | + cAudioIF_6_5 | + cVideoIF_38_90 ), + },{ + .std = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR, + .name = "NTSC-M", + .b = ( cNegativeFmTV | + cQSS ), + .c = ( cDeemphasisON | + cDeemphasis75 | + cTopDefault), + .e = ( cGating_36 | + cAudioIF_4_5 | + cVideoIF_45_75 ), + },{ + .std = V4L2_STD_NTSC_M_JP, + .name = "NTSC-M-JP", + .b = ( cNegativeFmTV | + cQSS ), + .c = ( cDeemphasisON | + cDeemphasis50 | + cTopDefault), + .e = ( cGating_36 | + cAudioIF_4_5 | + cVideoIF_58_75 ), + } +}; + +static struct tvnorm radio_stereo = { + .name = "Radio Stereo", + .b = ( cFmRadio | + cQSS ), + .c = ( cDeemphasisOFF | + cAudioGain6 | + cTopDefault), + .e = ( cTunerGainLow | + cAudioIF_5_5 | + cRadioIF_38_90 ), +}; + +static struct tvnorm radio_mono = { + .name = "Radio Mono", + .b = ( cFmRadio | + cQSS ), + .c = ( cDeemphasisON | + cDeemphasis75 | + cTopDefault), + .e = ( cTunerGainLow | + cAudioIF_5_5 | + cRadioIF_38_90 ), +}; + +/* ---------------------------------------------------------------------- */ + +static void dump_read_message(struct dvb_frontend *fe, unsigned char *buf) +{ + struct tda9887_priv *priv = fe->analog_demod_priv; + + static char *afc[16] = { + "- 12.5 kHz", + "- 37.5 kHz", + "- 62.5 kHz", + "- 87.5 kHz", + "-112.5 kHz", + "-137.5 kHz", + "-162.5 kHz", + "-187.5 kHz [min]", + "+187.5 kHz [max]", + "+162.5 kHz", + "+137.5 kHz", + "+112.5 kHz", + "+ 87.5 kHz", + "+ 62.5 kHz", + "+ 37.5 kHz", + "+ 12.5 kHz", + }; + tuner_info("read: 0x%2x\n", buf[0]); + tuner_info(" after power on : %s\n", (buf[0] & 0x01) ? "yes" : "no"); + tuner_info(" afc : %s\n", afc[(buf[0] >> 1) & 0x0f]); + tuner_info(" fmif level : %s\n", (buf[0] & 0x20) ? "high" : "low"); + tuner_info(" afc window : %s\n", (buf[0] & 0x40) ? "in" : "out"); + tuner_info(" vfi level : %s\n", (buf[0] & 0x80) ? "high" : "low"); +} + +static void dump_write_message(struct dvb_frontend *fe, unsigned char *buf) +{ + struct tda9887_priv *priv = fe->analog_demod_priv; + + static char *sound[4] = { + "AM/TV", + "FM/radio", + "FM/TV", + "FM/radio" + }; + static char *adjust[32] = { + "-16", "-15", "-14", "-13", "-12", "-11", "-10", "-9", + "-8", "-7", "-6", "-5", "-4", "-3", "-2", "-1", + "0", "+1", "+2", "+3", "+4", "+5", "+6", "+7", + "+8", "+9", "+10", "+11", "+12", "+13", "+14", "+15" + }; + static char *deemph[4] = { + "no", "no", "75", "50" + }; + static char *carrier[4] = { + "4.5 MHz", + "5.5 MHz", + "6.0 MHz", + "6.5 MHz / AM" + }; + static char *vif[8] = { + "58.75 MHz", + "45.75 MHz", + "38.9 MHz", + "38.0 MHz", + "33.9 MHz", + "33.4 MHz", + "45.75 MHz + pin13", + "38.9 MHz + pin13", + }; + static char *rif[4] = { + "44 MHz", + "52 MHz", + "52 MHz", + "44 MHz", + }; + + tuner_info("write: byte B 0x%02x\n", buf[1]); + tuner_info(" B0 video mode : %s\n", + (buf[1] & 0x01) ? "video trap" : "sound trap"); + tuner_info(" B1 auto mute fm : %s\n", + (buf[1] & 0x02) ? "yes" : "no"); + tuner_info(" B2 carrier mode : %s\n", + (buf[1] & 0x04) ? "QSS" : "Intercarrier"); + tuner_info(" B3-4 tv sound/radio : %s\n", + sound[(buf[1] & 0x18) >> 3]); + tuner_info(" B5 force mute audio: %s\n", + (buf[1] & 0x20) ? "yes" : "no"); + tuner_info(" B6 output port 1 : %s\n", + (buf[1] & 0x40) ? "high (inactive)" : "low (active)"); + tuner_info(" B7 output port 2 : %s\n", + (buf[1] & 0x80) ? "high (inactive)" : "low (active)"); + + tuner_info("write: byte C 0x%02x\n", buf[2]); + tuner_info(" C0-4 top adjustment : %s dB\n", + adjust[buf[2] & 0x1f]); + tuner_info(" C5-6 de-emphasis : %s\n", + deemph[(buf[2] & 0x60) >> 5]); + tuner_info(" C7 audio gain : %s\n", + (buf[2] & 0x80) ? "-6" : "0"); + + tuner_info("write: byte E 0x%02x\n", buf[3]); + tuner_info(" E0-1 sound carrier : %s\n", + carrier[(buf[3] & 0x03)]); + tuner_info(" E6 l pll gating : %s\n", + (buf[3] & 0x40) ? "36" : "13"); + + if (buf[1] & 0x08) { + /* radio */ + tuner_info(" E2-4 video if : %s\n", + rif[(buf[3] & 0x0c) >> 2]); + tuner_info(" E7 vif agc output : %s\n", + (buf[3] & 0x80) + ? ((buf[3] & 0x10) ? "fm-agc radio" : + "sif-agc radio") + : "fm radio carrier afc"); + } else { + /* video */ + tuner_info(" E2-4 video if : %s\n", + vif[(buf[3] & 0x1c) >> 2]); + tuner_info(" E5 tuner gain : %s\n", + (buf[3] & 0x80) + ? ((buf[3] & 0x20) ? "external" : "normal") + : ((buf[3] & 0x20) ? "minimum" : "normal")); + tuner_info(" E7 vif agc output : %s\n", + (buf[3] & 0x80) ? ((buf[3] & 0x20) + ? "pin3 port, pin22 vif agc out" + : "pin22 port, pin3 vif acg ext in") + : "pin3+pin22 port"); + } + tuner_info("--\n"); +} + +/* ---------------------------------------------------------------------- */ + +static int tda9887_set_tvnorm(struct dvb_frontend *fe) +{ + struct tda9887_priv *priv = fe->analog_demod_priv; + struct tvnorm *norm = NULL; + char *buf = priv->data; + int i; + + if (priv->mode == V4L2_TUNER_RADIO) { + if (priv->audmode == V4L2_TUNER_MODE_MONO) + norm = &radio_mono; + else + norm = &radio_stereo; + } else { + for (i = 0; i < ARRAY_SIZE(tvnorms); i++) { + if (tvnorms[i].std & priv->std) { + norm = tvnorms+i; + break; + } + } + } + if (NULL == norm) { + tuner_dbg("Unsupported tvnorm entry - audio muted\n"); + return -1; + } + + tuner_dbg("configure for: %s\n", norm->name); + buf[1] = norm->b; + buf[2] = norm->c; + buf[3] = norm->e; + return 0; +} + +static unsigned int port1 = UNSET; +static unsigned int port2 = UNSET; +static unsigned int qss = UNSET; +static unsigned int adjust = UNSET; + +module_param(port1, int, 0644); +module_param(port2, int, 0644); +module_param(qss, int, 0644); +module_param(adjust, int, 0644); + +static int tda9887_set_insmod(struct dvb_frontend *fe) +{ + struct tda9887_priv *priv = fe->analog_demod_priv; + char *buf = priv->data; + + if (UNSET != port1) { + if (port1) + buf[1] |= cOutputPort1Inactive; + else + buf[1] &= ~cOutputPort1Inactive; + } + if (UNSET != port2) { + if (port2) + buf[1] |= cOutputPort2Inactive; + else + buf[1] &= ~cOutputPort2Inactive; + } + + if (UNSET != qss) { + if (qss) + buf[1] |= cQSS; + else + buf[1] &= ~cQSS; + } + + if (adjust < 0x20) { + buf[2] &= ~cTopMask; + buf[2] |= adjust; + } + return 0; +} + +static int tda9887_do_config(struct dvb_frontend *fe) +{ + struct tda9887_priv *priv = fe->analog_demod_priv; + char *buf = priv->data; + + if (priv->config & TDA9887_PORT1_ACTIVE) + buf[1] &= ~cOutputPort1Inactive; + if (priv->config & TDA9887_PORT1_INACTIVE) + buf[1] |= cOutputPort1Inactive; + if (priv->config & TDA9887_PORT2_ACTIVE) + buf[1] &= ~cOutputPort2Inactive; + if (priv->config & TDA9887_PORT2_INACTIVE) + buf[1] |= cOutputPort2Inactive; + + if (priv->config & TDA9887_QSS) + buf[1] |= cQSS; + if (priv->config & TDA9887_INTERCARRIER) + buf[1] &= ~cQSS; + + if (priv->config & TDA9887_AUTOMUTE) + buf[1] |= cAutoMuteFmActive; + if (priv->config & TDA9887_DEEMPHASIS_MASK) { + buf[2] &= ~0x60; + switch (priv->config & TDA9887_DEEMPHASIS_MASK) { + case TDA9887_DEEMPHASIS_NONE: + buf[2] |= cDeemphasisOFF; + break; + case TDA9887_DEEMPHASIS_50: + buf[2] |= cDeemphasisON | cDeemphasis50; + break; + case TDA9887_DEEMPHASIS_75: + buf[2] |= cDeemphasisON | cDeemphasis75; + break; + } + } + if (priv->config & TDA9887_TOP_SET) { + buf[2] &= ~cTopMask; + buf[2] |= (priv->config >> 8) & cTopMask; + } + if ((priv->config & TDA9887_INTERCARRIER_NTSC) && + (priv->std & V4L2_STD_NTSC)) + buf[1] &= ~cQSS; + if (priv->config & TDA9887_GATING_18) + buf[3] &= ~cGating_36; + + if (priv->mode == V4L2_TUNER_RADIO) { + if (priv->config & TDA9887_RIF_41_3) { + buf[3] &= ~cVideoIFMask; + buf[3] |= cRadioIF_41_30; + } + if (priv->config & TDA9887_GAIN_NORMAL) + buf[3] &= ~cTunerGainLow; + } + + return 0; +} + +/* ---------------------------------------------------------------------- */ + +static int tda9887_status(struct dvb_frontend *fe) +{ + struct tda9887_priv *priv = fe->analog_demod_priv; + unsigned char buf[1]; + int rc; + + rc = tuner_i2c_xfer_recv(&priv->i2c_props, buf, 1); + if (rc != 1) + tuner_info("i2c i/o error: rc == %d (should be 1)\n", rc); + dump_read_message(fe, buf); + return 0; +} + +static void tda9887_configure(struct dvb_frontend *fe) +{ + struct tda9887_priv *priv = fe->analog_demod_priv; + int rc; + + memset(priv->data,0,sizeof(priv->data)); + tda9887_set_tvnorm(fe); + + /* A note on the port settings: + These settings tend to depend on the specifics of the board. + By default they are set to inactive (bit value 1) by this driver, + overwriting any changes made by the tvnorm. This means that it + is the responsibility of the module using the tda9887 to set + these values in case of changes in the tvnorm. + In many cases port 2 should be made active (0) when selecting + SECAM-L, and port 2 should remain inactive (1) for SECAM-L'. + + For the other standards the tda9887 application note says that + the ports should be set to active (0), but, again, that may + differ depending on the precise hardware configuration. + */ + priv->data[1] |= cOutputPort1Inactive; + priv->data[1] |= cOutputPort2Inactive; + + tda9887_do_config(fe); + tda9887_set_insmod(fe); + + if (priv->standby) + priv->data[1] |= cForcedMuteAudioON; + + tuner_dbg("writing: b=0x%02x c=0x%02x e=0x%02x\n", + priv->data[1], priv->data[2], priv->data[3]); + if (debug > 1) + dump_write_message(fe, priv->data); + + if (4 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,priv->data,4))) + tuner_info("i2c i/o error: rc == %d (should be 4)\n", rc); + + if (debug > 2) { + msleep_interruptible(1000); + tda9887_status(fe); + } +} + +/* ---------------------------------------------------------------------- */ + +static void tda9887_tuner_status(struct dvb_frontend *fe) +{ + struct tda9887_priv *priv = fe->analog_demod_priv; + tuner_info("Data bytes: b=0x%02x c=0x%02x e=0x%02x\n", + priv->data[1], priv->data[2], priv->data[3]); +} + +static int tda9887_get_afc(struct dvb_frontend *fe, s32 *afc) +{ + struct tda9887_priv *priv = fe->analog_demod_priv; + static const int AFC_BITS_2_kHz[] = { + -12500, -37500, -62500, -97500, + -112500, -137500, -162500, -187500, + 187500, 162500, 137500, 112500, + 97500 , 62500, 37500 , 12500 + }; + __u8 reg = 0; + + if (priv->mode != V4L2_TUNER_RADIO) + return 0; + if (1 == tuner_i2c_xfer_recv(&priv->i2c_props, ®, 1)) + *afc = AFC_BITS_2_kHz[(reg >> 1) & 0x0f]; + return 0; +} + +static void tda9887_standby(struct dvb_frontend *fe) +{ + struct tda9887_priv *priv = fe->analog_demod_priv; + + priv->standby = true; + + tda9887_configure(fe); +} + +static void tda9887_set_params(struct dvb_frontend *fe, + struct analog_parameters *params) +{ + struct tda9887_priv *priv = fe->analog_demod_priv; + + priv->standby = false; + priv->mode = params->mode; + priv->audmode = params->audmode; + priv->std = params->std; + tda9887_configure(fe); +} + +static int tda9887_set_config(struct dvb_frontend *fe, void *priv_cfg) +{ + struct tda9887_priv *priv = fe->analog_demod_priv; + + priv->config = *(unsigned int *)priv_cfg; + tda9887_configure(fe); + + return 0; +} + +static void tda9887_release(struct dvb_frontend *fe) +{ + struct tda9887_priv *priv = fe->analog_demod_priv; + + mutex_lock(&tda9887_list_mutex); + + if (priv) + hybrid_tuner_release_state(priv); + + mutex_unlock(&tda9887_list_mutex); + + fe->analog_demod_priv = NULL; +} + +static const struct analog_demod_ops tda9887_ops = { + .info = { + .name = "tda9887", + }, + .set_params = tda9887_set_params, + .standby = tda9887_standby, + .tuner_status = tda9887_tuner_status, + .get_afc = tda9887_get_afc, + .release = tda9887_release, + .set_config = tda9887_set_config, +}; + +struct dvb_frontend *tda9887_attach(struct dvb_frontend *fe, + struct i2c_adapter *i2c_adap, + u8 i2c_addr) +{ + struct tda9887_priv *priv = NULL; + int instance; + + mutex_lock(&tda9887_list_mutex); + + instance = hybrid_tuner_request_state(struct tda9887_priv, priv, + hybrid_tuner_instance_list, + i2c_adap, i2c_addr, "tda9887"); + switch (instance) { + case 0: + mutex_unlock(&tda9887_list_mutex); + return NULL; + case 1: + fe->analog_demod_priv = priv; + priv->standby = true; + tuner_info("tda988[5/6/7] found\n"); + break; + default: + fe->analog_demod_priv = priv; + break; + } + + mutex_unlock(&tda9887_list_mutex); + + memcpy(&fe->ops.analog_ops, &tda9887_ops, + sizeof(struct analog_demod_ops)); + + return fe; +} +EXPORT_SYMBOL_GPL(tda9887_attach); + +MODULE_LICENSE("GPL"); |
