From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 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(). ... --- drivers/media/i2c/cx25840/cx25840-audio.c | 558 ++++++++++++++++++++++++++++++ 1 file changed, 558 insertions(+) create mode 100644 drivers/media/i2c/cx25840/cx25840-audio.c (limited to 'drivers/media/i2c/cx25840/cx25840-audio.c') diff --git a/drivers/media/i2c/cx25840/cx25840-audio.c b/drivers/media/i2c/cx25840/cx25840-audio.c new file mode 100644 index 000000000..eb77ba088 --- /dev/null +++ b/drivers/media/i2c/cx25840/cx25840-audio.c @@ -0,0 +1,558 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* cx25840 audio functions + */ + + +#include +#include +#include +#include + +#include "cx25840-core.h" + +/* + * Note: The PLL and SRC parameters are based on a reference frequency that + * would ideally be: + * + * NTSC Color subcarrier freq * 8 = 4.5 MHz/286 * 455/2 * 8 = 28.63636363... MHz + * + * However, it's not the exact reference frequency that matters, only that the + * firmware and modules that comprise the driver for a particular board all + * use the same value (close to the ideal value). + * + * Comments below will note which reference frequency is assumed for various + * parameters. They will usually be one of + * + * ref_freq = 28.636360 MHz + * or + * ref_freq = 28.636363 MHz + */ + +static int cx25840_set_audclk_freq(struct i2c_client *client, u32 freq) +{ + struct cx25840_state *state = to_state(i2c_get_clientdata(client)); + + if (state->aud_input != CX25840_AUDIO_SERIAL) { + switch (freq) { + case 32000: + /* + * VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04 + * AUX_PLL Integer = 0x06, AUX PLL Post Divider = 0x10 + */ + cx25840_write4(client, 0x108, 0x1006040f); + + /* + * VID_PLL Fraction (register 0x10c) = 0x2be2fe + * 28636360 * 0xf.15f17f0/4 = 108 MHz + * 432 MHz pre-postdivide + */ + + /* + * AUX_PLL Fraction = 0x1bb39ee + * 28636363 * 0x6.dd9cf70/0x10 = 32000 * 384 + * 196.6 MHz pre-postdivide + * FIXME < 200 MHz is out of specified valid range + * FIXME 28636363 ref_freq doesn't match VID PLL ref + */ + cx25840_write4(client, 0x110, 0x01bb39ee); + + /* + * SA_MCLK_SEL = 1 + * SA_MCLK_DIV = 0x10 = 384/384 * AUX_PLL post dvivider + */ + cx25840_write(client, 0x127, 0x50); + + if (is_cx2583x(state)) + break; + + /* src3/4/6_ctl */ + /* 0x1.f77f = (4 * 28636360/8 * 2/455) / 32000 */ + cx25840_write4(client, 0x900, 0x0801f77f); + cx25840_write4(client, 0x904, 0x0801f77f); + cx25840_write4(client, 0x90c, 0x0801f77f); + break; + + case 44100: + /* + * VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04 + * AUX_PLL Integer = 0x09, AUX PLL Post Divider = 0x10 + */ + cx25840_write4(client, 0x108, 0x1009040f); + + /* + * VID_PLL Fraction (register 0x10c) = 0x2be2fe + * 28636360 * 0xf.15f17f0/4 = 108 MHz + * 432 MHz pre-postdivide + */ + + /* + * AUX_PLL Fraction = 0x0ec6bd6 + * 28636363 * 0x9.7635eb0/0x10 = 44100 * 384 + * 271 MHz pre-postdivide + * FIXME 28636363 ref_freq doesn't match VID PLL ref + */ + cx25840_write4(client, 0x110, 0x00ec6bd6); + + /* + * SA_MCLK_SEL = 1 + * SA_MCLK_DIV = 0x10 = 384/384 * AUX_PLL post dvivider + */ + cx25840_write(client, 0x127, 0x50); + + if (is_cx2583x(state)) + break; + + /* src3/4/6_ctl */ + /* 0x1.6d59 = (4 * 28636360/8 * 2/455) / 44100 */ + cx25840_write4(client, 0x900, 0x08016d59); + cx25840_write4(client, 0x904, 0x08016d59); + cx25840_write4(client, 0x90c, 0x08016d59); + break; + + case 48000: + /* + * VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04 + * AUX_PLL Integer = 0x0a, AUX PLL Post Divider = 0x10 + */ + cx25840_write4(client, 0x108, 0x100a040f); + + /* + * VID_PLL Fraction (register 0x10c) = 0x2be2fe + * 28636360 * 0xf.15f17f0/4 = 108 MHz + * 432 MHz pre-postdivide + */ + + /* + * AUX_PLL Fraction = 0x098d6e5 + * 28636363 * 0xa.4c6b728/0x10 = 48000 * 384 + * 295 MHz pre-postdivide + * FIXME 28636363 ref_freq doesn't match VID PLL ref + */ + cx25840_write4(client, 0x110, 0x0098d6e5); + + /* + * SA_MCLK_SEL = 1 + * SA_MCLK_DIV = 0x10 = 384/384 * AUX_PLL post dvivider + */ + cx25840_write(client, 0x127, 0x50); + + if (is_cx2583x(state)) + break; + + /* src3/4/6_ctl */ + /* 0x1.4faa = (4 * 28636360/8 * 2/455) / 48000 */ + cx25840_write4(client, 0x900, 0x08014faa); + cx25840_write4(client, 0x904, 0x08014faa); + cx25840_write4(client, 0x90c, 0x08014faa); + break; + } + } else { + switch (freq) { + case 32000: + /* + * VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04 + * AUX_PLL Integer = 0x08, AUX PLL Post Divider = 0x1e + */ + cx25840_write4(client, 0x108, 0x1e08040f); + + /* + * VID_PLL Fraction (register 0x10c) = 0x2be2fe + * 28636360 * 0xf.15f17f0/4 = 108 MHz + * 432 MHz pre-postdivide + */ + + /* + * AUX_PLL Fraction = 0x12a0869 + * 28636363 * 0x8.9504348/0x1e = 32000 * 256 + * 246 MHz pre-postdivide + * FIXME 28636363 ref_freq doesn't match VID PLL ref + */ + cx25840_write4(client, 0x110, 0x012a0869); + + /* + * SA_MCLK_SEL = 1 + * SA_MCLK_DIV = 0x14 = 256/384 * AUX_PLL post dvivider + */ + cx25840_write(client, 0x127, 0x54); + + if (is_cx2583x(state)) + break; + + /* src1_ctl */ + /* 0x1.0000 = 32000/32000 */ + cx25840_write4(client, 0x8f8, 0x08010000); + + /* src3/4/6_ctl */ + /* 0x2.0000 = 2 * (32000/32000) */ + cx25840_write4(client, 0x900, 0x08020000); + cx25840_write4(client, 0x904, 0x08020000); + cx25840_write4(client, 0x90c, 0x08020000); + break; + + case 44100: + /* + * VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04 + * AUX_PLL Integer = 0x09, AUX PLL Post Divider = 0x18 + */ + cx25840_write4(client, 0x108, 0x1809040f); + + /* + * VID_PLL Fraction (register 0x10c) = 0x2be2fe + * 28636360 * 0xf.15f17f0/4 = 108 MHz + * 432 MHz pre-postdivide + */ + + /* + * AUX_PLL Fraction = 0x0ec6bd6 + * 28636363 * 0x9.7635eb0/0x18 = 44100 * 256 + * 271 MHz pre-postdivide + * FIXME 28636363 ref_freq doesn't match VID PLL ref + */ + cx25840_write4(client, 0x110, 0x00ec6bd6); + + /* + * SA_MCLK_SEL = 1 + * SA_MCLK_DIV = 0x10 = 256/384 * AUX_PLL post dvivider + */ + cx25840_write(client, 0x127, 0x50); + + if (is_cx2583x(state)) + break; + + /* src1_ctl */ + /* 0x1.60cd = 44100/32000 */ + cx25840_write4(client, 0x8f8, 0x080160cd); + + /* src3/4/6_ctl */ + /* 0x1.7385 = 2 * (32000/44100) */ + cx25840_write4(client, 0x900, 0x08017385); + cx25840_write4(client, 0x904, 0x08017385); + cx25840_write4(client, 0x90c, 0x08017385); + break; + + case 48000: + /* + * VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04 + * AUX_PLL Integer = 0x0a, AUX PLL Post Divider = 0x18 + */ + cx25840_write4(client, 0x108, 0x180a040f); + + /* + * VID_PLL Fraction (register 0x10c) = 0x2be2fe + * 28636360 * 0xf.15f17f0/4 = 108 MHz + * 432 MHz pre-postdivide + */ + + /* + * AUX_PLL Fraction = 0x098d6e5 + * 28636363 * 0xa.4c6b728/0x18 = 48000 * 256 + * 295 MHz pre-postdivide + * FIXME 28636363 ref_freq doesn't match VID PLL ref + */ + cx25840_write4(client, 0x110, 0x0098d6e5); + + /* + * SA_MCLK_SEL = 1 + * SA_MCLK_DIV = 0x10 = 256/384 * AUX_PLL post dvivider + */ + cx25840_write(client, 0x127, 0x50); + + if (is_cx2583x(state)) + break; + + /* src1_ctl */ + /* 0x1.8000 = 48000/32000 */ + cx25840_write4(client, 0x8f8, 0x08018000); + + /* src3/4/6_ctl */ + /* 0x1.5555 = 2 * (32000/48000) */ + cx25840_write4(client, 0x900, 0x08015555); + cx25840_write4(client, 0x904, 0x08015555); + cx25840_write4(client, 0x90c, 0x08015555); + break; + } + } + + state->audclk_freq = freq; + + return 0; +} + +static inline int cx25836_set_audclk_freq(struct i2c_client *client, u32 freq) +{ + return cx25840_set_audclk_freq(client, freq); +} + +static int cx23885_set_audclk_freq(struct i2c_client *client, u32 freq) +{ + struct cx25840_state *state = to_state(i2c_get_clientdata(client)); + + if (state->aud_input != CX25840_AUDIO_SERIAL) { + switch (freq) { + case 32000: + case 44100: + case 48000: + /* We don't have register values + * so avoid destroying registers. */ + /* FIXME return -EINVAL; */ + break; + } + } else { + switch (freq) { + case 32000: + case 44100: + /* We don't have register values + * so avoid destroying registers. */ + /* FIXME return -EINVAL; */ + break; + + case 48000: + /* src1_ctl */ + /* 0x1.867c = 48000 / (2 * 28636360/8 * 2/455) */ + cx25840_write4(client, 0x8f8, 0x0801867c); + + /* src3/4/6_ctl */ + /* 0x1.4faa = (4 * 28636360/8 * 2/455) / 48000 */ + cx25840_write4(client, 0x900, 0x08014faa); + cx25840_write4(client, 0x904, 0x08014faa); + cx25840_write4(client, 0x90c, 0x08014faa); + break; + } + } + + state->audclk_freq = freq; + + return 0; +} + +static int cx231xx_set_audclk_freq(struct i2c_client *client, u32 freq) +{ + struct cx25840_state *state = to_state(i2c_get_clientdata(client)); + + if (state->aud_input != CX25840_AUDIO_SERIAL) { + switch (freq) { + case 32000: + /* src3/4/6_ctl */ + /* 0x1.f77f = (4 * 28636360/8 * 2/455) / 32000 */ + cx25840_write4(client, 0x900, 0x0801f77f); + cx25840_write4(client, 0x904, 0x0801f77f); + cx25840_write4(client, 0x90c, 0x0801f77f); + break; + + case 44100: + /* src3/4/6_ctl */ + /* 0x1.6d59 = (4 * 28636360/8 * 2/455) / 44100 */ + cx25840_write4(client, 0x900, 0x08016d59); + cx25840_write4(client, 0x904, 0x08016d59); + cx25840_write4(client, 0x90c, 0x08016d59); + break; + + case 48000: + /* src3/4/6_ctl */ + /* 0x1.4faa = (4 * 28636360/8 * 2/455) / 48000 */ + cx25840_write4(client, 0x900, 0x08014faa); + cx25840_write4(client, 0x904, 0x08014faa); + cx25840_write4(client, 0x90c, 0x08014faa); + break; + } + } else { + switch (freq) { + /* FIXME These cases make different assumptions about audclk */ + case 32000: + /* src1_ctl */ + /* 0x1.0000 = 32000/32000 */ + cx25840_write4(client, 0x8f8, 0x08010000); + + /* src3/4/6_ctl */ + /* 0x2.0000 = 2 * (32000/32000) */ + cx25840_write4(client, 0x900, 0x08020000); + cx25840_write4(client, 0x904, 0x08020000); + cx25840_write4(client, 0x90c, 0x08020000); + break; + + case 44100: + /* src1_ctl */ + /* 0x1.60cd = 44100/32000 */ + cx25840_write4(client, 0x8f8, 0x080160cd); + + /* src3/4/6_ctl */ + /* 0x1.7385 = 2 * (32000/44100) */ + cx25840_write4(client, 0x900, 0x08017385); + cx25840_write4(client, 0x904, 0x08017385); + cx25840_write4(client, 0x90c, 0x08017385); + break; + + case 48000: + /* src1_ctl */ + /* 0x1.867c = 48000 / (2 * 28636360/8 * 2/455) */ + cx25840_write4(client, 0x8f8, 0x0801867c); + + /* src3/4/6_ctl */ + /* 0x1.4faa = (4 * 28636360/8 * 2/455) / 48000 */ + cx25840_write4(client, 0x900, 0x08014faa); + cx25840_write4(client, 0x904, 0x08014faa); + cx25840_write4(client, 0x90c, 0x08014faa); + break; + } + } + + state->audclk_freq = freq; + + return 0; +} + +static int set_audclk_freq(struct i2c_client *client, u32 freq) +{ + struct cx25840_state *state = to_state(i2c_get_clientdata(client)); + + if (freq != 32000 && freq != 44100 && freq != 48000) + return -EINVAL; + + if (is_cx231xx(state)) + return cx231xx_set_audclk_freq(client, freq); + + if (is_cx2388x(state)) + return cx23885_set_audclk_freq(client, freq); + + if (is_cx2583x(state)) + return cx25836_set_audclk_freq(client, freq); + + return cx25840_set_audclk_freq(client, freq); +} + +void cx25840_audio_set_path(struct i2c_client *client) +{ + struct cx25840_state *state = to_state(i2c_get_clientdata(client)); + + if (!is_cx2583x(state)) { + /* assert soft reset */ + cx25840_and_or(client, 0x810, ~0x1, 0x01); + + /* stop microcontroller */ + cx25840_and_or(client, 0x803, ~0x10, 0); + + /* Mute everything to prevent the PFFT! */ + cx25840_write(client, 0x8d3, 0x1f); + + if (state->aud_input == CX25840_AUDIO_SERIAL) { + /* Set Path1 to Serial Audio Input */ + cx25840_write4(client, 0x8d0, 0x01011012); + + /* The microcontroller should not be started for the + * non-tuner inputs: autodetection is specific for + * TV audio. */ + } else { + /* Set Path1 to Analog Demod Main Channel */ + cx25840_write4(client, 0x8d0, 0x1f063870); + } + } + + set_audclk_freq(client, state->audclk_freq); + + if (!is_cx2583x(state)) { + if (state->aud_input != CX25840_AUDIO_SERIAL) { + /* When the microcontroller detects the + * audio format, it will unmute the lines */ + cx25840_and_or(client, 0x803, ~0x10, 0x10); + } + + /* deassert soft reset */ + cx25840_and_or(client, 0x810, ~0x1, 0x00); + + /* Ensure the controller is running when we exit */ + if (is_cx2388x(state) || is_cx231xx(state)) + cx25840_and_or(client, 0x803, ~0x10, 0x10); + } +} + +static void set_volume(struct i2c_client *client, int volume) +{ + int vol; + + /* Convert the volume to msp3400 values (0-127) */ + vol = volume >> 9; + + /* now scale it up to cx25840 values + * -114dB to -96dB maps to 0 + * this should be 19, but in my testing that was 4dB too loud */ + if (vol <= 23) { + vol = 0; + } else { + vol -= 23; + } + + /* PATH1_VOLUME */ + cx25840_write(client, 0x8d4, 228 - (vol * 2)); +} + +static void set_balance(struct i2c_client *client, int balance) +{ + int bal = balance >> 8; + if (bal > 0x80) { + /* PATH1_BAL_LEFT */ + cx25840_and_or(client, 0x8d5, 0x7f, 0x80); + /* PATH1_BAL_LEVEL */ + cx25840_and_or(client, 0x8d5, ~0x7f, bal & 0x7f); + } else { + /* PATH1_BAL_LEFT */ + cx25840_and_or(client, 0x8d5, 0x7f, 0x00); + /* PATH1_BAL_LEVEL */ + cx25840_and_or(client, 0x8d5, ~0x7f, 0x80 - bal); + } +} + +int cx25840_s_clock_freq(struct v4l2_subdev *sd, u32 freq) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct cx25840_state *state = to_state(sd); + int retval; + + if (!is_cx2583x(state)) + cx25840_and_or(client, 0x810, ~0x1, 1); + if (state->aud_input != CX25840_AUDIO_SERIAL) { + cx25840_and_or(client, 0x803, ~0x10, 0); + cx25840_write(client, 0x8d3, 0x1f); + } + retval = set_audclk_freq(client, freq); + if (state->aud_input != CX25840_AUDIO_SERIAL) + cx25840_and_or(client, 0x803, ~0x10, 0x10); + if (!is_cx2583x(state)) + cx25840_and_or(client, 0x810, ~0x1, 0); + return retval; +} + +static int cx25840_audio_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct v4l2_subdev *sd = to_sd(ctrl); + struct cx25840_state *state = to_state(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); + + switch (ctrl->id) { + case V4L2_CID_AUDIO_VOLUME: + if (state->mute->val) + set_volume(client, 0); + else + set_volume(client, state->volume->val); + break; + case V4L2_CID_AUDIO_BASS: + /* PATH1_EQ_BASS_VOL */ + cx25840_and_or(client, 0x8d9, ~0x3f, + 48 - (ctrl->val * 48 / 0xffff)); + break; + case V4L2_CID_AUDIO_TREBLE: + /* PATH1_EQ_TREBLE_VOL */ + cx25840_and_or(client, 0x8db, ~0x3f, + 48 - (ctrl->val * 48 / 0xffff)); + break; + case V4L2_CID_AUDIO_BALANCE: + set_balance(client, ctrl->val); + break; + default: + return -EINVAL; + } + return 0; +} + +const struct v4l2_ctrl_ops cx25840_audio_ctrl_ops = { + .s_ctrl = cx25840_audio_s_ctrl, +}; -- cgit v1.2.3