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author | 2023-02-21 18:24:12 -0800 | |
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committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/accessibility/speakup/speakup_dectlk.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 'drivers/accessibility/speakup/speakup_dectlk.c')
-rw-r--r-- | drivers/accessibility/speakup/speakup_dectlk.c | 346 |
1 files changed, 346 insertions, 0 deletions
diff --git a/drivers/accessibility/speakup/speakup_dectlk.c b/drivers/accessibility/speakup/speakup_dectlk.c new file mode 100644 index 000000000..56334405d --- /dev/null +++ b/drivers/accessibility/speakup/speakup_dectlk.c @@ -0,0 +1,346 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * originally written by: Kirk Reiser <kirk@braille.uwo.ca> + * this version considerably modified by David Borowski, david575@rogers.com + * + * Copyright (C) 1998-99 Kirk Reiser. + * Copyright (C) 2003 David Borowski. + * + * specifically written as a driver for the speakup screenreview + * s not a general device driver. + */ +#include <linux/unistd.h> +#include <linux/proc_fs.h> +#include <linux/jiffies.h> +#include <linux/spinlock.h> +#include <linux/sched.h> +#include <linux/timer.h> +#include <linux/kthread.h> +#include "speakup.h" +#include "spk_priv.h" + +#define DRV_VERSION "2.20" +#define SYNTH_CLEAR 0x03 +#define PROCSPEECH 0x0b +static int xoff; + +static inline int synth_full(void) +{ + return xoff; +} + +static void do_catch_up(struct spk_synth *synth); +static void synth_flush(struct spk_synth *synth); +static void read_buff_add(u_char c); +static unsigned char get_index(struct spk_synth *synth); + +static int in_escape; +static int is_flushing; + +static DEFINE_SPINLOCK(flush_lock); +static DECLARE_WAIT_QUEUE_HEAD(flush); + +enum default_vars_id { + CAPS_START_ID = 0, CAPS_STOP_ID, + RATE_ID, PITCH_ID, INFLECTION_ID, + VOL_ID, PUNCT_ID, VOICE_ID, + DIRECT_ID, V_LAST_VAR_ID, + NB_ID, +}; + +static struct var_t vars[NB_ID] = { + [CAPS_START_ID] = { CAPS_START, .u.s = {"[:dv ap 160] " } }, + [CAPS_STOP_ID] = { CAPS_STOP, .u.s = {"[:dv ap 100 ] " } }, + [RATE_ID] = { RATE, .u.n = {"[:ra %d] ", 180, 75, 650, 0, 0, NULL } }, + [PITCH_ID] = { PITCH, .u.n = {"[:dv ap %d] ", 122, 50, 350, 0, 0, NULL } }, + [INFLECTION_ID] = { INFLECTION, .u.n = {"[:dv pr %d] ", 100, 0, 10000, 0, 0, NULL } }, + [VOL_ID] = { VOL, .u.n = {"[:dv g5 %d] ", 86, 60, 86, 0, 0, NULL } }, + [PUNCT_ID] = { PUNCT, .u.n = {"[:pu %c] ", 0, 0, 2, 0, 0, "nsa" } }, + [VOICE_ID] = { VOICE, .u.n = {"[:n%c] ", 0, 0, 9, 0, 0, "phfdburwkv" } }, + [DIRECT_ID] = { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } }, + V_LAST_VAR +}; + +/* + * These attributes will appear in /sys/accessibility/speakup/dectlk. + */ +static struct kobj_attribute caps_start_attribute = + __ATTR(caps_start, 0644, spk_var_show, spk_var_store); +static struct kobj_attribute caps_stop_attribute = + __ATTR(caps_stop, 0644, spk_var_show, spk_var_store); +static struct kobj_attribute pitch_attribute = + __ATTR(pitch, 0644, spk_var_show, spk_var_store); +static struct kobj_attribute inflection_attribute = + __ATTR(inflection, 0644, spk_var_show, spk_var_store); +static struct kobj_attribute punct_attribute = + __ATTR(punct, 0644, spk_var_show, spk_var_store); +static struct kobj_attribute rate_attribute = + __ATTR(rate, 0644, spk_var_show, spk_var_store); +static struct kobj_attribute voice_attribute = + __ATTR(voice, 0644, spk_var_show, spk_var_store); +static struct kobj_attribute vol_attribute = + __ATTR(vol, 0644, spk_var_show, spk_var_store); + +static struct kobj_attribute delay_time_attribute = + __ATTR(delay_time, 0644, spk_var_show, spk_var_store); +static struct kobj_attribute direct_attribute = + __ATTR(direct, 0644, spk_var_show, spk_var_store); +static struct kobj_attribute full_time_attribute = + __ATTR(full_time, 0644, spk_var_show, spk_var_store); +static struct kobj_attribute flush_time_attribute = + __ATTR(flush_time, 0644, spk_var_show, spk_var_store); +static struct kobj_attribute jiffy_delta_attribute = + __ATTR(jiffy_delta, 0644, spk_var_show, spk_var_store); +static struct kobj_attribute trigger_time_attribute = + __ATTR(trigger_time, 0644, spk_var_show, spk_var_store); + +/* + * Create a group of attributes so that we can create and destroy them all + * at once. + */ +static struct attribute *synth_attrs[] = { + &caps_start_attribute.attr, + &caps_stop_attribute.attr, + &pitch_attribute.attr, + &inflection_attribute.attr, + &punct_attribute.attr, + &rate_attribute.attr, + &voice_attribute.attr, + &vol_attribute.attr, + &delay_time_attribute.attr, + &direct_attribute.attr, + &full_time_attribute.attr, + &flush_time_attribute.attr, + &jiffy_delta_attribute.attr, + &trigger_time_attribute.attr, + NULL, /* need to NULL terminate the list of attributes */ +}; + +static int ap_defaults[] = {122, 89, 155, 110, 208, 240, 200, 106, 306}; +static int g5_defaults[] = {86, 81, 86, 84, 81, 80, 83, 83, 73}; + +static struct spk_synth synth_dectlk = { + .name = "dectlk", + .version = DRV_VERSION, + .long_name = "Dectalk Express", + .init = "[:error sp :name paul :rate 180 :tsr off] ", + .procspeech = PROCSPEECH, + .clear = SYNTH_CLEAR, + .delay = 500, + .trigger = 50, + .jiffies = 50, + .full = 40000, + .flush_time = 4000, + .dev_name = SYNTH_DEFAULT_DEV, + .startup = SYNTH_START, + .checkval = SYNTH_CHECK, + .vars = vars, + .default_pitch = ap_defaults, + .default_vol = g5_defaults, + .io_ops = &spk_ttyio_ops, + .probe = spk_ttyio_synth_probe, + .release = spk_ttyio_release, + .synth_immediate = spk_ttyio_synth_immediate, + .catch_up = do_catch_up, + .flush = synth_flush, + .is_alive = spk_synth_is_alive_restart, + .synth_adjust = NULL, + .read_buff_add = read_buff_add, + .get_index = get_index, + .indexing = { + .command = "[:in re %d ] ", + .lowindex = 1, + .highindex = 8, + .currindex = 1, + }, + .attributes = { + .attrs = synth_attrs, + .name = "dectlk", + }, +}; + +static int is_indnum(u_char *ch) +{ + if ((*ch >= '0') && (*ch <= '9')) { + *ch = *ch - '0'; + return 1; + } + return 0; +} + +static u_char lastind; + +static unsigned char get_index(struct spk_synth *synth) +{ + u_char rv; + + rv = lastind; + lastind = 0; + return rv; +} + +static void read_buff_add(u_char c) +{ + static int ind = -1; + + if (c == 0x01) { + unsigned long flags; + + spin_lock_irqsave(&flush_lock, flags); + is_flushing = 0; + wake_up_interruptible(&flush); + spin_unlock_irqrestore(&flush_lock, flags); + } else if (c == 0x13) { + xoff = 1; + } else if (c == 0x11) { + xoff = 0; + } else if (is_indnum(&c)) { + if (ind == -1) + ind = c; + else + ind = ind * 10 + c; + } else if ((c > 31) && (c < 127)) { + if (ind != -1) + lastind = (u_char)ind; + ind = -1; + } +} + +static void do_catch_up(struct spk_synth *synth) +{ + int synth_full_val = 0; + static u_char ch; + static u_char last = '\0'; + unsigned long flags; + unsigned long jiff_max; + unsigned long timeout; + DEFINE_WAIT(wait); + struct var_t *jiffy_delta; + struct var_t *delay_time; + struct var_t *flush_time; + int jiffy_delta_val; + int delay_time_val; + int timeout_val; + + jiffy_delta = spk_get_var(JIFFY); + delay_time = spk_get_var(DELAY); + flush_time = spk_get_var(FLUSH); + spin_lock_irqsave(&speakup_info.spinlock, flags); + jiffy_delta_val = jiffy_delta->u.n.value; + timeout_val = flush_time->u.n.value; + spin_unlock_irqrestore(&speakup_info.spinlock, flags); + timeout = msecs_to_jiffies(timeout_val); + jiff_max = jiffies + jiffy_delta_val; + + while (!kthread_should_stop()) { + /* if no ctl-a in 4, send data anyway */ + spin_lock_irqsave(&flush_lock, flags); + while (is_flushing && timeout) { + prepare_to_wait(&flush, &wait, TASK_INTERRUPTIBLE); + spin_unlock_irqrestore(&flush_lock, flags); + timeout = schedule_timeout(timeout); + spin_lock_irqsave(&flush_lock, flags); + } + finish_wait(&flush, &wait); + is_flushing = 0; + spin_unlock_irqrestore(&flush_lock, flags); + + spin_lock_irqsave(&speakup_info.spinlock, flags); + if (speakup_info.flushing) { + speakup_info.flushing = 0; + spin_unlock_irqrestore(&speakup_info.spinlock, flags); + synth->flush(synth); + continue; + } + synth_buffer_skip_nonlatin1(); + if (synth_buffer_empty()) { + spin_unlock_irqrestore(&speakup_info.spinlock, flags); + break; + } + ch = synth_buffer_peek(); + set_current_state(TASK_INTERRUPTIBLE); + delay_time_val = delay_time->u.n.value; + synth_full_val = synth_full(); + spin_unlock_irqrestore(&speakup_info.spinlock, flags); + if (ch == '\n') + ch = 0x0D; + if (synth_full_val || !synth->io_ops->synth_out(synth, ch)) { + schedule_timeout(msecs_to_jiffies(delay_time_val)); + continue; + } + set_current_state(TASK_RUNNING); + spin_lock_irqsave(&speakup_info.spinlock, flags); + synth_buffer_getc(); + spin_unlock_irqrestore(&speakup_info.spinlock, flags); + if (ch == '[') { + in_escape = 1; + } else if (ch == ']') { + in_escape = 0; + } else if (ch <= SPACE) { + if (!in_escape && strchr(",.!?;:", last)) + synth->io_ops->synth_out(synth, PROCSPEECH); + if (time_after_eq(jiffies, jiff_max)) { + if (!in_escape) + synth->io_ops->synth_out(synth, + PROCSPEECH); + spin_lock_irqsave(&speakup_info.spinlock, + flags); + jiffy_delta_val = jiffy_delta->u.n.value; + delay_time_val = delay_time->u.n.value; + spin_unlock_irqrestore(&speakup_info.spinlock, + flags); + schedule_timeout(msecs_to_jiffies + (delay_time_val)); + jiff_max = jiffies + jiffy_delta_val; + } + } + last = ch; + } + if (!in_escape) + synth->io_ops->synth_out(synth, PROCSPEECH); +} + +static void synth_flush(struct spk_synth *synth) +{ + if (in_escape) + /* if in command output ']' so we don't get an error */ + synth->io_ops->synth_out(synth, ']'); + in_escape = 0; + is_flushing = 1; + synth->io_ops->flush_buffer(synth); + synth->io_ops->synth_out(synth, SYNTH_CLEAR); +} + +module_param_named(ser, synth_dectlk.ser, int, 0444); +module_param_named(dev, synth_dectlk.dev_name, charp, 0444); +module_param_named(start, synth_dectlk.startup, short, 0444); +module_param_named(rate, vars[RATE_ID].u.n.default_val, int, 0444); +module_param_named(pitch, vars[PITCH_ID].u.n.default_val, int, 0444); +module_param_named(inflection, vars[INFLECTION_ID].u.n.default_val, int, 0444); +module_param_named(vol, vars[VOL_ID].u.n.default_val, int, 0444); +module_param_named(punct, vars[PUNCT_ID].u.n.default_val, int, 0444); +module_param_named(voice, vars[VOICE_ID].u.n.default_val, int, 0444); +module_param_named(direct, vars[DIRECT_ID].u.n.default_val, int, 0444); + + + +MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based)."); +MODULE_PARM_DESC(dev, "Set the device e.g. ttyUSB0, for the synthesizer."); +MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded."); +MODULE_PARM_DESC(rate, "Set the rate variable on load."); +MODULE_PARM_DESC(pitch, "Set the pitch variable on load."); +MODULE_PARM_DESC(inflection, "Set the inflection variable on load."); +MODULE_PARM_DESC(vol, "Set the vol variable on load."); +MODULE_PARM_DESC(punct, "Set the punct variable on load."); +MODULE_PARM_DESC(voice, "Set the voice variable on load."); +MODULE_PARM_DESC(direct, "Set the direct variable on load."); + + +module_spk_synth(synth_dectlk); + +MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>"); +MODULE_AUTHOR("David Borowski"); +MODULE_DESCRIPTION("Speakup support for DECtalk Express synthesizers"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_VERSION); + |