1ab92da32e
This adds spk_ttyio.c file. It contains a set of functions which implement those methods in spk_synth struct which relate to sending bytes out using serial comms. Implementations in this file perform the same function but using TTY subsystem instead. Currently synths access serial ports, directly poking standard ISA ports by trying to steal them from serial driver. Some ISA cards actually need this way of doing it, but most other synthesizers don't, and can actually work by using the proper TTY subsystem through a new N_SPEAKUP line discipline. So this adds the methods for drivers to switch to accessing serial ports through the TTY subsystem, whenever appropriate. Signed-off-by: Okash Khawaja <okash.khawaja@gmail.com> Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
41 lines
1.4 KiB
C
41 lines
1.4 KiB
C
#ifndef _UAPI_LINUX_TTY_H
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#define _UAPI_LINUX_TTY_H
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/*
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* 'tty.h' defines some structures used by tty_io.c and some defines.
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*/
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#define NR_LDISCS 30
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/* line disciplines */
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#define N_TTY 0
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#define N_SLIP 1
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#define N_MOUSE 2
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#define N_PPP 3
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#define N_STRIP 4
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#define N_AX25 5
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#define N_X25 6 /* X.25 async */
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#define N_6PACK 7
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#define N_MASC 8 /* Reserved for Mobitex module <kaz@cafe.net> */
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#define N_R3964 9 /* Reserved for Simatic R3964 module */
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#define N_PROFIBUS_FDL 10 /* Reserved for Profibus */
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#define N_IRDA 11 /* Linux IrDa - http://irda.sourceforge.net/ */
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#define N_SMSBLOCK 12 /* SMS block mode - for talking to GSM data */
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/* cards about SMS messages */
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#define N_HDLC 13 /* synchronous HDLC */
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#define N_SYNC_PPP 14 /* synchronous PPP */
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#define N_HCI 15 /* Bluetooth HCI UART */
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#define N_GIGASET_M101 16 /* Siemens Gigaset M101 serial DECT adapter */
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#define N_SLCAN 17 /* Serial / USB serial CAN Adaptors */
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#define N_PPS 18 /* Pulse per Second */
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#define N_V253 19 /* Codec control over voice modem */
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#define N_CAIF 20 /* CAIF protocol for talking to modems */
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#define N_GSM0710 21 /* GSM 0710 Mux */
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#define N_TI_WL 22 /* for TI's WL BT, FM, GPS combo chips */
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#define N_TRACESINK 23 /* Trace data routing for MIPI P1149.7 */
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#define N_TRACEROUTER 24 /* Trace data routing for MIPI P1149.7 */
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#define N_NCI 25 /* NFC NCI UART */
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#define N_SPEAKUP 26 /* Speakup communication with synths */
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#endif /* _UAPI_LINUX_TTY_H */
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