b75cfeb116
This is an enhancement which allows to specify the default driver parameters among the module parameters. Adding default variables to the speakup_decpc module allows to easily set that at boot, rather than setting the sys variables after boot. More details can be found here: https://github.com/linux-speakup/speakup/issues/7 Signed-off-by: Osama Muhammad <osmtendev@gmail.com> Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Link: https://lore.kernel.org/r/20221109215108.7933-7-osmtendev@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
524 lines
16 KiB
C
524 lines
16 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* This is the DECtalk PC speakup driver
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*
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* Some constants from DEC's DOS driver:
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* Copyright (c) by Digital Equipment Corp.
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*
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* 386BSD DECtalk PC driver:
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* Copyright (c) 1996 Brian Buhrow <buhrow@lothlorien.nfbcal.org>
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*
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* Linux DECtalk PC driver:
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* Copyright (c) 1997 Nicolas Pitre <nico@cam.org>
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*
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* speakup DECtalk PC Internal driver:
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* Copyright (c) 2003 David Borowski <david575@golden.net>
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*
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* All rights reserved.
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*/
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#include <linux/jiffies.h>
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#include <linux/sched.h>
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#include <linux/timer.h>
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#include <linux/kthread.h>
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#include "spk_priv.h"
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#include "speakup.h"
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#define MODULE_init 0x0dec /* module in boot code */
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#define MODULE_self_test 0x8800 /* module in self-test */
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#define MODULE_reset 0xffff /* reinit the whole module */
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#define MODE_mask 0xf000 /* mode bits in high nibble */
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#define MODE_null 0x0000
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#define MODE_test 0x2000 /* in testing mode */
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#define MODE_status 0x8000
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#define STAT_int 0x0001 /* running in interrupt mode */
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#define STAT_tr_char 0x0002 /* character data to transmit */
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#define STAT_rr_char 0x0004 /* ready to receive char data */
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#define STAT_cmd_ready 0x0008 /* ready to accept commands */
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#define STAT_dma_ready 0x0010 /* dma command ready */
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#define STAT_digitized 0x0020 /* spc in digitized mode */
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#define STAT_new_index 0x0040 /* new last index ready */
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#define STAT_new_status 0x0080 /* new status posted */
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#define STAT_dma_state 0x0100 /* dma state toggle */
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#define STAT_index_valid 0x0200 /* indexs are valid */
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#define STAT_flushing 0x0400 /* flush in progress */
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#define STAT_self_test 0x0800 /* module in self test */
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#define MODE_ready 0xc000 /* module ready for next phase */
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#define READY_boot 0x0000
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#define READY_kernel 0x0001
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#define MODE_error 0xf000
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#define CMD_mask 0xf000 /* mask for command nibble */
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#define CMD_null 0x0000 /* post status */
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#define CMD_control 0x1000 /* hard control command */
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#define CTRL_mask 0x0F00 /* mask off control nibble */
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#define CTRL_data 0x00FF /* mask to get data byte */
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#define CTRL_null 0x0000 /* null control */
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#define CTRL_vol_up 0x0100 /* increase volume */
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#define CTRL_vol_down 0x0200 /* decrease volume */
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#define CTRL_vol_set 0x0300 /* set volume */
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#define CTRL_pause 0x0400 /* pause spc */
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#define CTRL_resume 0x0500 /* resume spc clock */
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#define CTRL_resume_spc 0x0001 /* resume spc soft pause */
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#define CTRL_flush 0x0600 /* flush all buffers */
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#define CTRL_int_enable 0x0700 /* enable status change ints */
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#define CTRL_buff_free 0x0800 /* buffer remain count */
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#define CTRL_buff_used 0x0900 /* buffer in use */
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#define CTRL_speech 0x0a00 /* immediate speech change */
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#define CTRL_SP_voice 0x0001 /* voice change */
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#define CTRL_SP_rate 0x0002 /* rate change */
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#define CTRL_SP_comma 0x0003 /* comma pause change */
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#define CTRL_SP_period 0x0004 /* period pause change */
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#define CTRL_SP_rate_delta 0x0005 /* delta rate change */
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#define CTRL_SP_get_param 0x0006 /* return the desired parameter */
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#define CTRL_last_index 0x0b00 /* get last index spoken */
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#define CTRL_io_priority 0x0c00 /* change i/o priority */
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#define CTRL_free_mem 0x0d00 /* get free paragraphs on module */
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#define CTRL_get_lang 0x0e00 /* return bitmask of loaded languages */
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#define CMD_test 0x2000 /* self-test request */
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#define TEST_mask 0x0F00 /* isolate test field */
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#define TEST_null 0x0000 /* no test requested */
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#define TEST_isa_int 0x0100 /* assert isa irq */
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#define TEST_echo 0x0200 /* make data in == data out */
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#define TEST_seg 0x0300 /* set peek/poke segment */
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#define TEST_off 0x0400 /* set peek/poke offset */
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#define TEST_peek 0x0500 /* data out == *peek */
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#define TEST_poke 0x0600 /* *peek == data in */
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#define TEST_sub_code 0x00FF /* user defined test sub codes */
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#define CMD_id 0x3000 /* return software id */
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#define ID_null 0x0000 /* null id */
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#define ID_kernel 0x0100 /* kernel code executing */
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#define ID_boot 0x0200 /* boot code executing */
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#define CMD_dma 0x4000 /* force a dma start */
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#define CMD_reset 0x5000 /* reset module status */
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#define CMD_sync 0x6000 /* kernel sync command */
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#define CMD_char_in 0x7000 /* single character send */
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#define CMD_char_out 0x8000 /* single character get */
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#define CHAR_count_1 0x0100 /* one char in cmd_low */
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#define CHAR_count_2 0x0200 /* the second in data_low */
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#define CHAR_count_3 0x0300 /* the third in data_high */
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#define CMD_spc_mode 0x9000 /* change spc mode */
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#define CMD_spc_to_text 0x0100 /* set to text mode */
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#define CMD_spc_to_digit 0x0200 /* set to digital mode */
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#define CMD_spc_rate 0x0400 /* change spc data rate */
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#define CMD_error 0xf000 /* severe error */
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enum { PRIMARY_DIC = 0, USER_DIC, COMMAND_DIC, ABBREV_DIC };
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#define DMA_single_in 0x01
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#define DMA_single_out 0x02
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#define DMA_buff_in 0x03
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#define DMA_buff_out 0x04
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#define DMA_control 0x05
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#define DT_MEM_ALLOC 0x03
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#define DT_SET_DIC 0x04
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#define DT_START_TASK 0x05
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#define DT_LOAD_MEM 0x06
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#define DT_READ_MEM 0x07
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#define DT_DIGITAL_IN 0x08
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#define DMA_sync 0x06
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#define DMA_sync_char 0x07
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#define DRV_VERSION "2.12"
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#define PROCSPEECH 0x0b
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#define SYNTH_IO_EXTENT 8
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static int synth_probe(struct spk_synth *synth);
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static void dtpc_release(struct spk_synth *synth);
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static const char *synth_immediate(struct spk_synth *synth, const char *buf);
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static void do_catch_up(struct spk_synth *synth);
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static void synth_flush(struct spk_synth *synth);
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static int synth_portlist[] = { 0x340, 0x350, 0x240, 0x250, 0 };
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static int in_escape, is_flushing;
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static int dt_stat, dma_state;
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enum default_vars_id {
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CAPS_START_ID = 0, CAPS_STOP_ID,
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RATE_ID, PITCH_ID, INFLECTION_ID,
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VOL_ID, PUNCT_ID, VOICE_ID,
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DIRECT_ID, V_LAST_VAR_ID,
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NB_ID,
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};
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static struct var_t vars[NB_ID] = {
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[CAPS_START_ID] = { CAPS_START, .u.s = {"[:dv ap 200]" } },
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[CAPS_STOP_ID] = { CAPS_STOP, .u.s = {"[:dv ap 100]" } },
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[RATE_ID] = { RATE, .u.n = {"[:ra %d]", 9, 0, 18, 150, 25, NULL } },
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[PITCH_ID] = { PITCH, .u.n = {"[:dv ap %d]", 80, 0, 100, 20, 0, NULL } },
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[INFLECTION_ID] = { INFLECTION, .u.n = {"[:dv pr %d] ", 100, 0, 10000, 0, 0, NULL } },
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[VOL_ID] = { VOL, .u.n = {"[:vo se %d]", 5, 0, 9, 5, 10, NULL } },
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[PUNCT_ID] = { PUNCT, .u.n = {"[:pu %c]", 0, 0, 2, 0, 0, "nsa" } },
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[VOICE_ID] = { VOICE, .u.n = {"[:n%c]", 0, 0, 9, 0, 0, "phfdburwkv" } },
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[DIRECT_ID] = { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
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V_LAST_VAR
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};
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/*
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* These attributes will appear in /sys/accessibility/speakup/decpc.
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*/
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static struct kobj_attribute caps_start_attribute =
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__ATTR(caps_start, 0644, spk_var_show, spk_var_store);
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static struct kobj_attribute caps_stop_attribute =
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__ATTR(caps_stop, 0644, spk_var_show, spk_var_store);
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static struct kobj_attribute pitch_attribute =
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__ATTR(pitch, 0644, spk_var_show, spk_var_store);
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static struct kobj_attribute inflection_attribute =
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__ATTR(inflection, 0644, spk_var_show, spk_var_store);
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static struct kobj_attribute punct_attribute =
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__ATTR(punct, 0644, spk_var_show, spk_var_store);
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static struct kobj_attribute rate_attribute =
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__ATTR(rate, 0644, spk_var_show, spk_var_store);
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static struct kobj_attribute voice_attribute =
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__ATTR(voice, 0644, spk_var_show, spk_var_store);
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static struct kobj_attribute vol_attribute =
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__ATTR(vol, 0644, spk_var_show, spk_var_store);
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static struct kobj_attribute delay_time_attribute =
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__ATTR(delay_time, 0644, spk_var_show, spk_var_store);
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static struct kobj_attribute direct_attribute =
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__ATTR(direct, 0644, spk_var_show, spk_var_store);
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static struct kobj_attribute full_time_attribute =
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__ATTR(full_time, 0644, spk_var_show, spk_var_store);
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static struct kobj_attribute jiffy_delta_attribute =
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__ATTR(jiffy_delta, 0644, spk_var_show, spk_var_store);
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static struct kobj_attribute trigger_time_attribute =
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__ATTR(trigger_time, 0644, spk_var_show, spk_var_store);
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/*
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* Create a group of attributes so that we can create and destroy them all
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* at once.
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*/
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static struct attribute *synth_attrs[] = {
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&caps_start_attribute.attr,
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&caps_stop_attribute.attr,
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&pitch_attribute.attr,
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&inflection_attribute.attr,
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&punct_attribute.attr,
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&rate_attribute.attr,
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&voice_attribute.attr,
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&vol_attribute.attr,
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&delay_time_attribute.attr,
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&direct_attribute.attr,
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&full_time_attribute.attr,
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&jiffy_delta_attribute.attr,
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&trigger_time_attribute.attr,
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NULL, /* need to NULL terminate the list of attributes */
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};
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static struct spk_synth synth_dec_pc = {
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.name = "decpc",
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.version = DRV_VERSION,
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.long_name = "Dectalk PC",
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.init = "[:pe -380]",
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.procspeech = PROCSPEECH,
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.delay = 500,
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.trigger = 50,
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.jiffies = 50,
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.full = 1000,
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.flags = SF_DEC,
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.startup = SYNTH_START,
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.checkval = SYNTH_CHECK,
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.vars = vars,
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.io_ops = &spk_serial_io_ops,
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.probe = synth_probe,
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.release = dtpc_release,
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.synth_immediate = synth_immediate,
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.catch_up = do_catch_up,
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.flush = synth_flush,
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.is_alive = spk_synth_is_alive_nop,
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.synth_adjust = NULL,
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.read_buff_add = NULL,
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.get_index = NULL,
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.indexing = {
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.command = NULL,
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.lowindex = 0,
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.highindex = 0,
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.currindex = 0,
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},
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.attributes = {
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.attrs = synth_attrs,
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.name = "decpc",
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},
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};
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static int dt_getstatus(void)
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{
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dt_stat = inb_p(speakup_info.port_tts) |
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(inb_p(speakup_info.port_tts + 1) << 8);
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return dt_stat;
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}
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static void dt_sendcmd(u_int cmd)
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{
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outb_p(cmd & 0xFF, speakup_info.port_tts);
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outb_p((cmd >> 8) & 0xFF, speakup_info.port_tts + 1);
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}
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static int dt_waitbit(int bit)
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{
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int timeout = 100;
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while (--timeout > 0) {
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if ((dt_getstatus() & bit) == bit)
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return 1;
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udelay(50);
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}
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return 0;
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}
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static int dt_wait_dma(void)
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{
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int timeout = 100, state = dma_state;
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if (!dt_waitbit(STAT_dma_ready))
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return 0;
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while (--timeout > 0) {
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if ((dt_getstatus() & STAT_dma_state) == state)
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return 1;
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udelay(50);
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}
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dma_state = dt_getstatus() & STAT_dma_state;
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return 1;
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}
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static int dt_ctrl(u_int cmd)
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{
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int timeout = 10;
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if (!dt_waitbit(STAT_cmd_ready))
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return -1;
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outb_p(0, speakup_info.port_tts + 2);
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outb_p(0, speakup_info.port_tts + 3);
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dt_getstatus();
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dt_sendcmd(CMD_control | cmd);
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outb_p(0, speakup_info.port_tts + 6);
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while (dt_getstatus() & STAT_cmd_ready) {
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udelay(20);
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if (--timeout == 0)
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break;
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}
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dt_sendcmd(CMD_null);
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return 0;
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}
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static void synth_flush(struct spk_synth *synth)
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{
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int timeout = 10;
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if (is_flushing)
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return;
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is_flushing = 4;
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in_escape = 0;
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while (dt_ctrl(CTRL_flush)) {
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if (--timeout == 0)
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break;
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udelay(50);
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}
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for (timeout = 0; timeout < 10; timeout++) {
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if (dt_waitbit(STAT_dma_ready))
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break;
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udelay(50);
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}
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outb_p(DMA_sync, speakup_info.port_tts + 4);
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outb_p(0, speakup_info.port_tts + 4);
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udelay(100);
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for (timeout = 0; timeout < 10; timeout++) {
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if (!(dt_getstatus() & STAT_flushing))
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break;
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udelay(50);
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}
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dma_state = dt_getstatus() & STAT_dma_state;
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dma_state ^= STAT_dma_state;
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is_flushing = 0;
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}
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static int dt_sendchar(char ch)
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{
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if (!dt_wait_dma())
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return -1;
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if (!(dt_stat & STAT_rr_char))
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return -2;
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outb_p(DMA_single_in, speakup_info.port_tts + 4);
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outb_p(ch, speakup_info.port_tts + 4);
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dma_state ^= STAT_dma_state;
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return 0;
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}
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static int testkernel(void)
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{
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int status = 0;
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if (dt_getstatus() == 0xffff) {
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status = -1;
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goto oops;
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}
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dt_sendcmd(CMD_sync);
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if (!dt_waitbit(STAT_cmd_ready))
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status = -2;
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else if (dt_stat & 0x8000)
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return 0;
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else if (dt_stat == 0x0dec)
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pr_warn("dec_pc at 0x%x, software not loaded\n",
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speakup_info.port_tts);
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status = -3;
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oops: synth_release_region(speakup_info.port_tts, SYNTH_IO_EXTENT);
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speakup_info.port_tts = 0;
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return status;
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}
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static void do_catch_up(struct spk_synth *synth)
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{
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u_char ch;
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static u_char last;
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unsigned long flags;
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unsigned long jiff_max;
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struct var_t *jiffy_delta;
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struct var_t *delay_time;
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int jiffy_delta_val;
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int delay_time_val;
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jiffy_delta = spk_get_var(JIFFY);
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delay_time = spk_get_var(DELAY);
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spin_lock_irqsave(&speakup_info.spinlock, flags);
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jiffy_delta_val = jiffy_delta->u.n.value;
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spin_unlock_irqrestore(&speakup_info.spinlock, flags);
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jiff_max = jiffies + jiffy_delta_val;
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while (!kthread_should_stop()) {
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spin_lock_irqsave(&speakup_info.spinlock, flags);
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if (speakup_info.flushing) {
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speakup_info.flushing = 0;
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spin_unlock_irqrestore(&speakup_info.spinlock, flags);
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synth->flush(synth);
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continue;
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}
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synth_buffer_skip_nonlatin1();
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if (synth_buffer_empty()) {
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spin_unlock_irqrestore(&speakup_info.spinlock, flags);
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break;
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}
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ch = synth_buffer_peek();
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set_current_state(TASK_INTERRUPTIBLE);
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delay_time_val = delay_time->u.n.value;
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spin_unlock_irqrestore(&speakup_info.spinlock, flags);
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if (ch == '\n')
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ch = 0x0D;
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if (dt_sendchar(ch)) {
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schedule_timeout(msecs_to_jiffies(delay_time_val));
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continue;
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}
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set_current_state(TASK_RUNNING);
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spin_lock_irqsave(&speakup_info.spinlock, flags);
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synth_buffer_getc();
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spin_unlock_irqrestore(&speakup_info.spinlock, flags);
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if (ch == '[') {
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in_escape = 1;
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} else if (ch == ']') {
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in_escape = 0;
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} else if (ch <= SPACE) {
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if (!in_escape && strchr(",.!?;:", last))
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dt_sendchar(PROCSPEECH);
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if (time_after_eq(jiffies, jiff_max)) {
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if (!in_escape)
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dt_sendchar(PROCSPEECH);
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spin_lock_irqsave(&speakup_info.spinlock,
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flags);
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jiffy_delta_val = jiffy_delta->u.n.value;
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delay_time_val = delay_time->u.n.value;
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spin_unlock_irqrestore(&speakup_info.spinlock,
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flags);
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schedule_timeout(msecs_to_jiffies
|
|
(delay_time_val));
|
|
jiff_max = jiffies + jiffy_delta_val;
|
|
}
|
|
}
|
|
last = ch;
|
|
ch = 0;
|
|
}
|
|
if (!in_escape)
|
|
dt_sendchar(PROCSPEECH);
|
|
}
|
|
|
|
static const char *synth_immediate(struct spk_synth *synth, const char *buf)
|
|
{
|
|
u_char ch;
|
|
|
|
while ((ch = *buf)) {
|
|
if (ch == '\n')
|
|
ch = PROCSPEECH;
|
|
if (dt_sendchar(ch))
|
|
return buf;
|
|
buf++;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static int synth_probe(struct spk_synth *synth)
|
|
{
|
|
int i = 0, failed = 0;
|
|
|
|
pr_info("Probing for %s.\n", synth->long_name);
|
|
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;
|
|
}
|
|
speakup_info.port_tts = synth_portlist[i];
|
|
failed = testkernel();
|
|
if (failed == 0)
|
|
break;
|
|
}
|
|
if (failed) {
|
|
pr_info("%s: not found\n", synth->long_name);
|
|
return -ENODEV;
|
|
}
|
|
pr_info("%s: %03x-%03x, Driver Version %s,\n", synth->long_name,
|
|
speakup_info.port_tts, speakup_info.port_tts + 7,
|
|
synth->version);
|
|
synth->alive = 1;
|
|
return 0;
|
|
}
|
|
|
|
static void dtpc_release(struct spk_synth *synth)
|
|
{
|
|
spk_stop_serial_interrupt();
|
|
if (speakup_info.port_tts)
|
|
synth_release_region(speakup_info.port_tts, SYNTH_IO_EXTENT);
|
|
speakup_info.port_tts = 0;
|
|
}
|
|
|
|
module_param_named(start, synth_dec_pc.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(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_dec_pc);
|
|
|
|
MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
|
|
MODULE_AUTHOR("David Borowski");
|
|
MODULE_DESCRIPTION("Speakup support for DECtalk PC synthesizers");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_VERSION(DRV_VERSION);
|