Commit 3f6f1d8e authored by Glenn Morris's avatar Glenn Morris
Browse files

Daniel Engeler <engeler at gmail.com>

These changes add serial port access.
(term-update-mode-line): Modify.
(serial-port-is-file-p, serial-nice-speed-history)
(serial-no-speed, serial-mode-line-speed-menu)
(serial-mode-line-config-menu): New variables and constants.
(serial-name-history, serial-speed-history)
(serial-supported-or-barf, serial-read-name, serial-read-speed)
(serial-term, serial-speed, serial-mode-line-speed-menu-1)
(serial-mode-line-speed-menu, serial-update-speed-menu)
(serial-mode-line-config-menu-1, serial-mode-line-config-menu)
(serial-update-config-menu): New functions.
parent b8a9467c
2008-06-13 Daniel Engeler <engeler@gmail.com>
These changes add serial port access.
* term.el (term-update-mode-line): Modify.
(serial-port-is-file-p, serial-nice-speed-history)
(serial-no-speed, serial-mode-line-speed-menu)
(serial-mode-line-config-menu): New variables and constants.
(serial-name-history, serial-speed-history)
(serial-supported-or-barf, serial-read-name, serial-read-speed)
(serial-term, serial-speed, serial-mode-line-speed-menu-1)
(serial-mode-line-speed-menu, serial-update-speed-menu)
(serial-mode-line-config-menu-1, serial-mode-line-config-menu)
(serial-update-config-menu): New functions.
2008-06-13 Glenn Morris <rgm@gnu.org>
* menu-bar.el (menu-set-font): Use fboundp rather than functionp.
......
......@@ -1277,18 +1277,42 @@ you type \\[term-send-input] which sends the current line to the inferior."
(term-update-mode-line)))
(defun term-update-mode-line ()
(setq mode-line-process
(if (term-in-char-mode)
(if (term-pager-enabled) '(": char page %s") '(": char %s"))
(if (term-pager-enabled) '(": line page %s") '(": line %s"))))
(let ((term-mode (if (term-in-char-mode) "char" "line"))
(term-page (when (term-pager-enabled) " page"))
(serial-item-speed)
(serial-item-config)
(temp)
(proc (get-buffer-process (current-buffer))))
(when (and (term-check-proc (current-buffer))
(equal (process-type nil) 'serial))
(let ((temp (serial-speed)))
(setq serial-item-speed
`(:propertize
,(or (and temp (format " %d" temp)) "")
help-echo "mouse-1: Change the speed of the serial port"
mouse-face mode-line-highlight
local-map (keymap (mode-line keymap
(down-mouse-1 . serial-mode-line-speed-menu-1))))))
(let ((temp (process-contact proc :summary)))
(setq serial-item-config
`(:propertize
,(or (and temp (format " %s" temp)) "")
help-echo "mouse-1: Change the configuration of the serial port"
mouse-face mode-line-highlight
local-map (keymap (mode-line keymap
(down-mouse-1 . serial-mode-line-config-menu-1)))))))
(setq mode-line-process
(list ": " term-mode term-page
serial-item-speed
serial-item-config
" %s")))
(force-mode-line-update))
(defun term-check-proc (buffer)
"True if there is a process associated w/buffer BUFFER, and
it is alive (status RUN or STOP). BUFFER can be either a buffer or the
name of one."
"True if there is a process associated w/buffer BUFFER, and it
is alive. BUFFER can be either a buffer or the name of one."
(let ((proc (get-buffer-process buffer)))
(and proc (memq (process-status proc) '(run stop)))))
(and proc (memq (process-status proc) '(run stop open listen connect)))))
;;;###autoload
(defun make-term (name program &optional startfile &rest switches)
......@@ -4204,6 +4228,238 @@ the process. Any more args are arguments to PROGRAM."
(switch-to-buffer term-ansi-buffer-name))
;;; Serial terminals
;;; ===========================================================================
(defun serial-port-is-file-p ()
"Guess whether serial ports are files on this system.
Return t if this is a Unix-based system, where serial ports are
files, such as /dev/ttyS0.
Return nil if this is Windows or DOS, where serial ports have
special identifiers such as COM1."
(not (member system-type (list 'windows-nt 'cygwin 'ms-dos))))
(defvar serial-name-history
(if (serial-port-is-file-p)
(or (when (file-exists-p "/dev/ttys0") (list "/dev/ttys0"))
(when (file-exists-p "/dev/ttyS0") (list "/dev/ttyS0")))
(list "COM1"))
"History of serial ports used by `serial-read-name'.")
(defvar serial-speed-history
;; Initialised with reasonable values for newbies.
(list "9600" ;; Given twice because 9600 b/s is the most common speed
"1200" "2400" "4800" "9600" "14400" "19200"
"28800" "38400" "57600" "115200")
"History of serial port speeds used by `serial-read-speed'.")
(defun serial-nice-speed-history ()
"Return `serial-speed-history' cleaned up for a mouse-menu."
(let ((x) (y))
(setq x
(sort
(copy-sequence serial-speed-history)
'(lambda (a b) (when (and (stringp a) (stringp b))
(> (string-to-number a) (string-to-number b))))))
(dolist (i x) (when (not (equal i (car y))) (push i y)))
y))
(defconst serial-no-speed "nil"
"String for `serial-read-speed' for special serial ports.
If `serial-read-speed' reads this string from the user, it
returns nil, which is recognized by `serial-process-configure'
for special serial ports that cannot be configured.")
(defun serial-supported-or-barf ()
"Signal an error if serial processes are not supported"
(unless (fboundp 'make-serial-process)
(error "Serial processes are not supported on this system")))
(defun serial-read-name ()
"Read a serial port name from the user.
Try to be nice by providing useful defaults and history.
On Windows, prepend \\.\ to the port name unless it already
contains a backslash. This handles the legacy ports COM1-COM9 as
well as the newer ports COM10 and higher."
(serial-supported-or-barf)
(let* ((file-name-history serial-name-history)
(h (car file-name-history))
(x (if (serial-port-is-file-p)
(read-file-name
;; `prompt': The most recently used port is provided as
;; the default value, which is used when the user
;; simply presses return.
(if (stringp h) (format "Serial port (default %s): " h)
"Serial port: ")
;; `directory': Most systems have their serial ports
;; in the same directory, so start in the directory
;; of the most recently used port, or in a reasonable
;; default directory.
(or (and h (file-name-directory h))
(and (file-exists-p "/dev/") "/dev/")
(and (file-exists-p "/") "/"))
;; `default': This causes (read-file-name) to return
;; the empty string if he user simply presses return.
;; Using nil here may result in a default directory
;; of the current buffer, which is not useful for
;; serial port.
"")
(read-from-minibuffer
(if (stringp h) (format "Serial port (default %s): " h)
"Serial port: ")
nil nil nil '(file-name-history . 1) nil nil))))
(if (or (null x) (and (stringp x) (zerop (length x))))
(setq x h)
(setq serial-name-history file-name-history))
(when (or (null x) (and (stringp x) (zerop (length x))))
(error "No serial port selected"))
(when (and (not (serial-port-is-file-p))
(not (string-match "\\\\" x)))
(set 'x (concat "\\\\.\\" x)))
x))
(defun serial-read-speed ()
"Read a serial port speed (in bits per second) from the user.
Try to be nice by providing useful defaults and history."
(serial-supported-or-barf)
(let* ((history serial-speed-history)
(h (car history))
(x (read-from-minibuffer
(cond ((string= h serial-no-speed)
"Speed (default nil = set by port): ")
(h
(format "Speed (default %s b/s): " h))
(t
(format "Speed (b/s): ")))
nil nil nil '(history . 1) nil nil)))
(when (or (null x) (and (stringp x) (zerop (length x))))
(setq x h))
(when (or (null x) (not (stringp x)) (zerop (length x)))
(error "Invalid speed"))
(if (string= x serial-no-speed)
(setq x nil)
(setq x (string-to-number x))
(when (or (null x) (not (integerp x)) (<= x 0))
(error "Invalid speed")))
(setq serial-speed-history history)
x))
;;;###autoload
(defun serial-term (port speed)
"Start a terminal-emulator for a serial port in a new buffer.
PORT is the path or name of the serial port. For example, this
could be \"/dev/ttyS0\" on Unix. On Windows, this could be
\"COM1\" or \"\\\\.\\COM10\".
SPEED is the speed of the serial port in bits per second. 9600
is a common value. SPEED can be nil, see
`serial-process-configure' for details.
The buffer is in Term mode; see `term-mode' for the commands to
use in that buffer.
\\<term-raw-map>Type \\[switch-to-buffer] to switch to another buffer."
(interactive (list (serial-read-name) (serial-read-speed)))
(serial-supported-or-barf)
(let* ((process (make-serial-process
:port port
:speed speed
:coding 'no-conversion
:noquery t))
(buffer (process-buffer process)))
(save-excursion
(set-buffer buffer)
(term-mode)
(term-char-mode)
(goto-char (point-max))
(set-marker (process-mark process) (point))
(set-process-filter process 'term-emulate-terminal)
(set-process-sentinel process 'term-sentinel))
(switch-to-buffer buffer)
buffer))
(defvar serial-mode-line-speed-menu nil)
(defvar serial-mode-line-config-menu nil)
(defun serial-speed ()
"Return the speed of the serial port of the current buffer's process.
The return value may be nil for a special serial port."
(process-contact (get-buffer-process (current-buffer)) :speed))
(defun serial-mode-line-speed-menu-1 (event)
(interactive "e")
(save-selected-window
(select-window (posn-window (event-start event)))
(serial-update-speed-menu)
(let* ((selection (serial-mode-line-speed-menu event))
(binding (and selection (lookup-key serial-mode-line-speed-menu
(vector (car selection))))))
(when binding (call-interactively binding)))))
(defun serial-mode-line-speed-menu (event)
(x-popup-menu event serial-mode-line-speed-menu))
(defun serial-update-speed-menu ()
(setq serial-mode-line-speed-menu (make-sparse-keymap "Speed (b/s)"))
(define-key serial-mode-line-speed-menu [serial-mode-line-speed-menu-other]
'(menu-item "Other..."
(lambda (event) (interactive "e")
(let ((speed (serial-read-speed)))
(serial-process-configure :speed speed)
(term-update-mode-line)
(message "Speed set to %d b/s" speed)))))
(dolist (str (serial-nice-speed-history))
(let ((num (or (and (stringp str) (string-to-number str)) 0)))
(define-key
serial-mode-line-speed-menu
(vector (make-symbol (format "serial-mode-line-speed-menu-%s" str)))
`(menu-item
,str
(lambda (event) (interactive "e")
(serial-process-configure :speed ,num)
(term-update-mode-line)
(message "Speed set to %d b/s" ,num))
:button (:toggle . (= (serial-speed) ,num)))))))
(defun serial-mode-line-config-menu-1 (event)
(interactive "e")
(save-selected-window
(select-window (posn-window (event-start event)))
(serial-update-config-menu)
(let* ((selection (serial-mode-line-config-menu event))
(binding (and selection (lookup-key serial-mode-line-config-menu
(vector (car selection))))))
(when binding (call-interactively binding)))))
(defun serial-mode-line-config-menu (event)
(x-popup-menu event serial-mode-line-config-menu))
(defun serial-update-config-menu ()
(setq serial-mode-line-config-menu (make-sparse-keymap "Configuration"))
(let ((config (process-contact
(get-buffer-process (current-buffer)) t))
(y)
(str))
(dolist (y '((:flowcontrol hw "Hardware flowcontrol (RTS/CTS)")
(:flowcontrol sw "Software flowcontrol (XON/XOFF)")
(:flowcontrol nil "No flowcontrol")
(:stopbits 2 "2 stopbits")
(:stopbits 1 "1 stopbit")
(:parity odd "Odd parity")
(:parity even "Even parity")
(:parity nil "No parity")
(:bytesize 7 "7 bits per byte")
(:bytesize 8 "8 bits per byte")))
(define-key serial-mode-line-config-menu
(vector (make-symbol (format "%s-%s" (nth 0 y) (nth 1 y))))
`(menu-item
,(nth 2 y)
(lambda (event) (interactive "e")
(serial-process-configure ,(nth 0 y) ',(nth 1 y))
(term-update-mode-line)
(message "%s" ,(nth 2 y)))
;; Use :toggle instead of :radio because a non-standard port
;; configuration may not match any menu items.
:button (:toggle . ,(equal (plist-get config (nth 0 y))
(nth 1 y))))))))
;;; Converting process modes to use term mode
;;; ===========================================================================
......
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