From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/accessibility/speakup/speakup_keypc.c | 318 ++++++++++++++++++++++++++ 1 file changed, 318 insertions(+) create mode 100644 drivers/accessibility/speakup/speakup_keypc.c (limited to 'drivers/accessibility/speakup/speakup_keypc.c') diff --git a/drivers/accessibility/speakup/speakup_keypc.c b/drivers/accessibility/speakup/speakup_keypc.c new file mode 100644 index 000000000..f61b62f1e --- /dev/null +++ b/drivers/accessibility/speakup/speakup_keypc.c @@ -0,0 +1,318 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * written by David Borowski + * + * Copyright (C) 2003 David Borowski. + * + * specifically written as a driver for the speakup screenreview + * package it's not a general device driver. + * This driver is for the Keynote Gold internal synthesizer. + */ +#include +#include +#include +#include +#include + +#include "spk_priv.h" +#include "speakup.h" + +#define DRV_VERSION "2.10" +#define SYNTH_IO_EXTENT 0x04 +#define SWAIT udelay(70) +#define PROCSPEECH 0x1f +#define SYNTH_CLEAR 0x03 + +static int synth_probe(struct spk_synth *synth); +static void keynote_release(struct spk_synth *synth); +static const char *synth_immediate(struct spk_synth *synth, const char *buf); +static void do_catch_up(struct spk_synth *synth); +static void synth_flush(struct spk_synth *synth); + +static int synth_port; +static int port_forced; +static unsigned int synth_portlist[] = { 0x2a8, 0 }; + +static struct var_t vars[] = { + { CAPS_START, .u.s = {"[f130]" } }, + { CAPS_STOP, .u.s = {"[f90]" } }, + { RATE, .u.n = {"\04%c ", 8, 0, 10, 81, -8, NULL } }, + { PITCH, .u.n = {"[f%d]", 5, 0, 9, 40, 10, NULL } }, + { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } }, + V_LAST_VAR +}; + +/* + * These attributes will appear in /sys/accessibility/speakup/keypc. + */ +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 rate_attribute = + __ATTR(rate, 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 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, + &rate_attribute.attr, + &delay_time_attribute.attr, + &direct_attribute.attr, + &full_time_attribute.attr, + &jiffy_delta_attribute.attr, + &trigger_time_attribute.attr, + NULL, /* need to NULL terminate the list of attributes */ +}; + +static struct spk_synth synth_keypc = { + .name = "keypc", + .version = DRV_VERSION, + .long_name = "Keynote PC", + .init = "[t][n7,1][n8,0]", + .procspeech = PROCSPEECH, + .clear = SYNTH_CLEAR, + .delay = 500, + .trigger = 50, + .jiffies = 50, + .full = 1000, + .startup = SYNTH_START, + .checkval = SYNTH_CHECK, + .vars = vars, + .io_ops = &spk_serial_io_ops, + .probe = synth_probe, + .release = keynote_release, + .synth_immediate = synth_immediate, + .catch_up = do_catch_up, + .flush = synth_flush, + .is_alive = spk_synth_is_alive_nop, + .synth_adjust = NULL, + .read_buff_add = NULL, + .get_index = NULL, + .indexing = { + .command = NULL, + .lowindex = 0, + .highindex = 0, + .currindex = 0, + }, + .attributes = { + .attrs = synth_attrs, + .name = "keypc", + }, +}; + +static inline bool synth_writable(void) +{ + return (inb_p(synth_port + UART_RX) & 0x10) != 0; +} + +static inline bool synth_full(void) +{ + return (inb_p(synth_port + UART_RX) & 0x80) == 0; +} + +static char *oops(void) +{ + int s1, s2, s3, s4; + + s1 = inb_p(synth_port); + s2 = inb_p(synth_port + 1); + s3 = inb_p(synth_port + 2); + s4 = inb_p(synth_port + 3); + pr_warn("synth timeout %d %d %d %d\n", s1, s2, s3, s4); + return NULL; +} + +static const char *synth_immediate(struct spk_synth *synth, const char *buf) +{ + u_char ch; + int timeout; + + while ((ch = *buf)) { + if (ch == '\n') + ch = PROCSPEECH; + if (synth_full()) + return buf; + timeout = 1000; + while (synth_writable()) + if (--timeout <= 0) + return oops(); + outb_p(ch, synth_port); + udelay(70); + buf++; + } + return NULL; +} + +static void do_catch_up(struct spk_synth *synth) +{ + u_char ch; + int timeout; + unsigned long flags; + unsigned long jiff_max; + struct var_t *jiffy_delta; + struct var_t *delay_time; + struct var_t *full_time; + int delay_time_val; + int full_time_val; + int jiffy_delta_val; + + jiffy_delta = spk_get_var(JIFFY); + delay_time = spk_get_var(DELAY); + full_time = spk_get_var(FULL); + spin_lock_irqsave(&speakup_info.spinlock, flags); + jiffy_delta_val = jiffy_delta->u.n.value; + spin_unlock_irqrestore(&speakup_info.spinlock, flags); + + jiff_max = jiffies + jiffy_delta_val; + while (!kthread_should_stop()) { + 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; + } + set_current_state(TASK_INTERRUPTIBLE); + full_time_val = full_time->u.n.value; + spin_unlock_irqrestore(&speakup_info.spinlock, flags); + if (synth_full()) { + schedule_timeout(msecs_to_jiffies(full_time_val)); + continue; + } + set_current_state(TASK_RUNNING); + timeout = 1000; + while (synth_writable()) + if (--timeout <= 0) + break; + if (timeout <= 0) { + oops(); + break; + } + spin_lock_irqsave(&speakup_info.spinlock, flags); + ch = synth_buffer_getc(); + spin_unlock_irqrestore(&speakup_info.spinlock, flags); + if (ch == '\n') + ch = PROCSPEECH; + outb_p(ch, synth_port); + SWAIT; + if (time_after_eq(jiffies, jiff_max) && (ch == SPACE)) { + timeout = 1000; + while (synth_writable()) + if (--timeout <= 0) + break; + if (timeout <= 0) { + oops(); + break; + } + outb_p(PROCSPEECH, synth_port); + 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; + } + } + timeout = 1000; + while (synth_writable()) + if (--timeout <= 0) + break; + if (timeout <= 0) + oops(); + else + outb_p(PROCSPEECH, synth_port); +} + +static void synth_flush(struct spk_synth *synth) +{ + outb_p(SYNTH_CLEAR, synth_port); +} + +static int synth_probe(struct spk_synth *synth) +{ + unsigned int port_val = 0; + int i; + + pr_info("Probing for %s.\n", synth->long_name); + if (port_forced) { + synth_port = port_forced; + pr_info("probe forced to %x by kernel command line\n", + synth_port); + if (synth_request_region(synth_port - 1, SYNTH_IO_EXTENT)) { + pr_warn("sorry, port already reserved\n"); + return -EBUSY; + } + port_val = inb(synth_port); + } else { + for (i = 0; synth_portlist[i]; i++) { + if (synth_request_region(synth_portlist[i], + SYNTH_IO_EXTENT)) { + pr_warn + ("request_region: failed with 0x%x, %d\n", + synth_portlist[i], SYNTH_IO_EXTENT); + continue; + } + port_val = inb(synth_portlist[i]); + if (port_val == 0x80) { + synth_port = synth_portlist[i]; + break; + } + } + } + if (port_val != 0x80) { + pr_info("%s: not found\n", synth->long_name); + synth_release_region(synth_port, SYNTH_IO_EXTENT); + synth_port = 0; + return -ENODEV; + } + pr_info("%s: %03x-%03x, driver version %s,\n", synth->long_name, + synth_port, synth_port + SYNTH_IO_EXTENT - 1, + synth->version); + synth->alive = 1; + return 0; +} + +static void keynote_release(struct spk_synth *synth) +{ + spk_stop_serial_interrupt(); + if (synth_port) + synth_release_region(synth_port, SYNTH_IO_EXTENT); + synth_port = 0; +} + +module_param_hw_named(port, port_forced, int, ioport, 0444); +module_param_named(start, synth_keypc.startup, short, 0444); + +MODULE_PARM_DESC(port, "Set the port for the synthesizer (override probing)."); +MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded."); + +module_spk_synth(synth_keypc); + +MODULE_AUTHOR("David Borowski"); +MODULE_DESCRIPTION("Speakup support for Keynote Gold PC synthesizers"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_VERSION); + -- cgit v1.2.3