openbsd-baikal
/
openbsd-xenocara
mirror of https://github.com/openbsd/xenocara
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
openbsd-xenocara/driver/xf86-input-elographics/src/xf86Elo.c

1135 lines
32 KiB
C
Raw Blame History

/*
* Copyright 1995, 1999 by Patrick Lecoanet, France. <lecoanet@cena.dgac.fr>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Patrick Lecoanet not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Patrick Lecoanet makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* PATRICK LECOANET DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL PATRICK LECOANET BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
*/
/*
*******************************************************************************
*******************************************************************************
*
* This driver is able to deal with Elographics SmartSet serial controllers.
* It uses only a subset of the functions provided through the protocol.
*
* SUPPORT FOR E281-2310 and compatible controllers added with help of:
* 1996/01/17 Juergen P. Meier (jpm@mailserv.rz.fh-muenchen.de) and
* 1998/03/25 G.Felkel@edelmann.de
*
* The E281-2310 is a somewhat lobotomized 2210.
* It does not support the c,g,h,k,l,p,q,s and t commands.
* Especially the P command, which is used to check the baud rate.
* The E281-2310 however semms to use always 9600bps, 8bit, 1stop
* no parity, Hardwarehandshake (RTS-CTS) (which are the drivers
* default values)
*
*******************************************************************************
*******************************************************************************
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "xorgVersion.h"
#include "misc.h"
#include "xf86.h"
#include "xf86_OSproc.h"
#include "xf86Xinput.h"
#include "exevents.h"
#include "xf86Module.h"
/**
* models to be treated specially.
*/
#define MODEL_UNKNOWN -1
#define MODEL_SUNIT_D 1
typedef struct {
int type;
const char *name;
} Model;
static Model SupportedModels[] =
{
{MODEL_SUNIT_D, "Sunit dSeries"}, /* sunit dSeries models don't reply to queries */
{MODEL_UNKNOWN, NULL}
};
/*
***************************************************************************
*
* Default constants.
*
***************************************************************************
*/
#define ELO_MAX_TRIALS 3 /* Number of timeouts waiting for a */
/* pending reply. */
#define ELO_MAX_WAIT 100000 /* Max wait time for a reply (microsec) */
#define ELO_UNTOUCH_DELAY 5 /* 100 ms */
#define ELO_REPORT_DELAY 1 /* 40 ms or 25 motion reports/s */
#define ELO_LINK_SPEED B9600 /* 9600 Bauds */
#define ELO_PORT "/dev/ttyS1"
#define DEFAULT_MAX_X 3000
#define DEFAULT_MIN_X 600
#define DEFAULT_MAX_Y 3000
#define DEFAULT_MIN_Y 600
/*
***************************************************************************
*
* Protocol constants.
*
***************************************************************************
*/
#define ELO_PACKET_SIZE 10
#define ELO_SYNC_BYTE 'U' /* Sync byte. First of a packet. */
#define ELO_TOUCH 'T' /* Report of touchs and motions. Not *
* used by 2310. */
#define ELO_OWNER 'O' /* Report vendor name. */
#define ELO_ID 'I' /* Report of type and features. */
#define ELO_MODE 'M' /* Set current operating mode. */
#define ELO_PARAMETER 'P' /* Set the serial parameters. */
#define ELO_REPORT 'B' /* Set touch reports timings. */
#define ELO_ACK 'A' /* Acknowledge packet */
#define ELO_INIT_CHECKSUM 0xAA /* Initial value of checksum. */
#define ELO_PRESS 0x01 /* Flags in ELO_TOUCH status byte */
#define ELO_STREAM 0x02
#define ELO_RELEASE 0x04
#define ELO_TOUCH_MODE 0x01 /* Flags in ELO_MODE command */
#define ELO_STREAM_MODE 0x02
#define ELO_UNTOUCH_MODE 0x04
#define ELO_RANGE_CHECK_MODE 0x40
#define ELO_TRIM_MODE 0x02
#define ELO_CALIB_MODE 0x04
#define ELO_SCALING_MODE 0x08
#define ELO_TRACKING_MODE 0x40
#define ELO_SERIAL_SPEED 0x06 /* Flags for high speed serial (19200) */
#define ELO_SERIAL_MASK 0xF8
#define ELO_SERIAL_IO '0' /* Indicator byte for PARAMETER command */
/*
***************************************************************************
*
* Useful macros.
*
***************************************************************************
*/
#define WORD_ASSEMBLY(byte1, byte2) (((byte2) << 8) | (byte1))
#define SYSCALL(call) while(((call) == -1) && (errno == EINTR))
/* This one is handy, thanx Fred ! */
#ifdef DBG
#undef DBG
#endif
#ifdef DEBUG
#undef DEBUG
#endif
static int debug_level = 0;
#define DEBUG 1
#if DEBUG
#define DBG(lvl, f) {if ((lvl) <= debug_level) f;}
#else
#define DBG(lvl, f)
#endif
#undef SYSCALL
#undef read
#undef write
#undef close
#define SYSCALL(call) call
#define read(fd, ptr, num) xf86ReadSerial(fd, ptr, num)
#define write(fd, ptr, num) xf86WriteSerial(fd, ptr, num)
#define close(fd) xf86CloseSerial(fd)
/*
***************************************************************************
*
* Device private records.
*
***************************************************************************
*/
typedef struct _EloPrivateRec {
char *input_dev; /* The touchscreen input tty */
int min_x; /* Minimum x reported by calibration */
int max_x; /* Maximum x */
int min_y; /* Minimum y reported by calibration */
int max_y; /* Maximum y */
int untouch_delay; /* Delay before reporting an untouch (in ms) */
int report_delay; /* Delay between touch report packets */
int screen_no; /* Screen associated with the device */
int screen_width; /* Width of the associated X screen */
int screen_height; /* Height of the screen */
Bool inited; /* The controller has already been configured ? */
Bool is_a_2310; /* Set if the smartset is a 2310. */
int checksum; /* Current checksum of data in assembly buffer */
int packet_buf_p; /* Assembly buffer pointer */
int swap_axes; /* Swap X an Y axes if != 0 */
unsigned char packet_buf[ELO_PACKET_SIZE]; /* Assembly buffer */
int model; /* one of MODEL_... */
} EloPrivateRec, *EloPrivatePtr;
/*
***************************************************************************
*
* xf86EloGetPacket --
* Read a packet from the port. Try to synchronize with start of
* packet and compute checksum.
* The packet structure read by this function is as follow:
* Byte 0 : ELO_SYNC_BYTE
* Byte 1
* ...
* Byte 8 : packet data
* Byte 9 : checksum of bytes 0 to 8
*
* This function returns if a valid packet has been assembled in
* buffer or if no more data is available.
*
* Returns Success if a packet is successfully assembled including
* testing checksum. If a packet checksum is incorrect, it is discarded.
* Bytes preceding the ELO_SYNC_BYTE are also discarded.
* Returns !Success if out of data while reading. The start of the
* partially assembled packet is left in buffer, buffer_p and
* checksum reflect the current state of assembly.
*
***************************************************************************
*/
static Bool
xf86EloGetPacket(unsigned char *buffer,
int *buffer_p,
int *checksum,
int fd)
{
int num_bytes;
Bool ok;
DBG(4, ErrorF("Entering xf86EloGetPacket with checksum == %d and buffer_p == %d\n",
*checksum, *buffer_p));
/*
* Try to read enough bytes to fill up the packet buffer.
*/
DBG(4, ErrorF("buffer_p is %d, Trying to read %d bytes from link\n",
*buffer_p, ELO_PACKET_SIZE - *buffer_p));
SYSCALL(num_bytes = read(fd,
(char *) (buffer + *buffer_p),
ELO_PACKET_SIZE - *buffer_p));
/*
* Okay, give up.
*/
if (num_bytes < 0) {
ErrorF("System error while reading from Elographics touchscreen.");
return !Success;
}
DBG(4, ErrorF("Read %d bytes\n", num_bytes));
while (num_bytes) {
/*
* Sync with the start of a packet.
*/
if ((*buffer_p == 0) && (buffer[0] != ELO_SYNC_BYTE)) {
/*
* No match, shift data one byte toward the start of the buffer.
*/
ErrorF("Elographics: Dropping one byte in an attempt to synchronize: '%c' 0x%X\n",
buffer[0], buffer[0]);
memcpy(&buffer[0], &buffer[1], num_bytes-1);
}
else {
/*
* Compute checksum in assembly buffer.
*/
if (*buffer_p < ELO_PACKET_SIZE-1) {
*checksum = *checksum + buffer[*buffer_p];
*checksum = *checksum % 256;
DBG(4, ErrorF(" 0x%X-->0x%X ", buffer[*buffer_p], *checksum));
}
(*buffer_p)++;
}
num_bytes--;
}
if (*buffer_p == ELO_PACKET_SIZE) {
/*
* Got a packet, validate checksum and reset state.
*/
ok = (*checksum == buffer[ELO_PACKET_SIZE-1]);
DBG(3, ErrorF("Expecting checksum %d, got %d\n", *checksum, buffer[ELO_PACKET_SIZE-1]));
*checksum = ELO_INIT_CHECKSUM;
*buffer_p = 0;
if (!ok) {
ErrorF("Checksum error on Elographics touchscreen link\n");
return !Success;
}
/*
* Valid packet received report it.
*/
return Success;
}
else {
return !Success;
}
}
/*
***************************************************************************
*
* xf86EloReadInput --
* Read all pending report packets from the touchscreen and enqueue
* them.
* If a packet is not fully received it is deferred until the next
* call to the function.
* Packets recognized by this function comply with the format:
*
* Byte 1 : ELO_TOUCH
* Byte 2 : Packet type
* Bit 2 : Pen Up (Release)
* Bit 1 : Position (Stream)
* Bit 0 : Pen Down (Press)
* Byte 3 : X coordinate (lower bits)
* Byte 4 : X coordinate (upper bits)
* Byte 5 : Y coordinate (lower bits)
* Byte 6 : Y coordinate (upper bits)
* Byte 7 : Z coordinate (lower bits)
* Byte 8 : Z coordinates (upper bits)
*
*
***************************************************************************
*/
static void
xf86EloReadInput(InputInfoPtr pInfo)
{
EloPrivatePtr priv = (EloPrivatePtr)(pInfo->private);
int cur_x, cur_y;
int state;
DBG(4, ErrorF("Entering ReadInput\n"));
/*
* Read bytes until there's no data left. We may have more or less than
* one packet worth of data in the OS buffer.
*/
do {
if(xf86EloGetPacket(priv->packet_buf,
&priv->packet_buf_p,
&priv->checksum,
pInfo->fd) != Success)
continue;
/*
* Process only ELO_TOUCHs here.
*/
if (priv->packet_buf[1] == ELO_TOUCH) {
/*
* First stick together the various pieces.
*/
cur_x = WORD_ASSEMBLY(priv->packet_buf[3], priv->packet_buf[4]);
cur_y = WORD_ASSEMBLY(priv->packet_buf[5], priv->packet_buf[6]);
state = priv->packet_buf[2] & 0x07;
DBG(5, ErrorF("ELO got: x(%d), y(%d), %s\n",
cur_x, cur_y,
(state == ELO_PRESS) ? "Press" :
((state == ELO_RELEASE) ? "Release" : "Stream")));
if (priv->min_y > priv->max_y) {
/* inverted y axis */
cur_y = priv->max_y - cur_y + priv->min_y;
}
if (priv->min_x > priv->max_x) {
/* inverted x axis */
cur_x = priv->max_x - cur_x + priv->min_x;
}
/*
* Send events.
*
* We *must* generate a motion before a button change if pointer
* location has changed as DIX assumes this. This is why we always
* emit a motion, regardless of the kind of packet processed.
*/
xf86PostMotionEvent(pInfo->dev, TRUE, 0, 2, cur_x, cur_y);
/*
* Emit a button press or release.
*/
if (state == ELO_PRESS || state == ELO_RELEASE) {
xf86PostButtonEvent(pInfo->dev, TRUE, 1, state == ELO_PRESS, 0, 2, cur_x, cur_y);
}
DBG(3, ErrorF("TouchScreen: x(%d), y(%d), %s\n",
cur_x, cur_y,
(state == ELO_PRESS) ? "Press" : ((state == ELO_RELEASE) ? "Release" : "Stream")));
}
}
while (xf86WaitForInput(pInfo->fd, 0) > 0); /* don't wait, just check */
}
/*
***************************************************************************
*
* xf86EloSendPacket --
* Emit an height bytes packet to the controller.
* The function expects a valid buffer containing the
* command to be sent to the controller. It fills it with the
* leading sync character an the trailing checksum byte.
*
***************************************************************************
*/
static Bool
xf86EloSendPacket(unsigned char *packet,
int fd)
{
int i, result;
int sum = ELO_INIT_CHECKSUM;
packet[0] = ELO_SYNC_BYTE;
for (i = 0; i < ELO_PACKET_SIZE-1; i++) {
sum += packet[i];
sum &= 0xFF;
}
packet[ELO_PACKET_SIZE-1] = sum;
DBG(4, ErrorF("Sending packet : 0x%X 0x%X 0x%X 0x%X 0x%X 0x%X 0x%X 0x%X 0x%X 0x%X \n",
packet[0], packet[1], packet[2], packet[3], packet[4],
packet[5], packet[6], packet[7], packet[8], packet[9]));
SYSCALL(result = write(fd, packet, ELO_PACKET_SIZE));
if (result != ELO_PACKET_SIZE) {
DBG(5, ErrorF("System error while sending to Elographics touchscreen.\n"));
return !Success;
}
else {
return Success;
}
}
/*
***************************************************************************
*
* xf86EloWaitReply --
* It is assumed that the reply will be in the few next bytes
* read and will be available very soon after the query post. if
* these two asumptions are not met, there are chances that the server
* will be stuck for a while.
* The reply type need to match parameter 'type'.
* The reply is left in reply. The function returns Success if the
* reply is valid and !Success otherwise.
*
***************************************************************************
*/
static Bool
xf86EloWaitReply(unsigned char type,
unsigned char *reply,
int fd)
{
Bool ok;
int i, result;
int reply_p = 0;
int sum = ELO_INIT_CHECKSUM;
DBG(4, ErrorF("Waiting a '%c' reply\n", type));
i = ELO_MAX_TRIALS;
do {
ok = !Success;
/*
* Wait half a second for the reply. The fuse counts down each
* timeout and each wrong packet.
*/
DBG(4, ErrorF("Waiting %d ms for data from port\n", ELO_MAX_WAIT / 1000));
result = xf86WaitForInput(fd, ELO_MAX_WAIT);
if (result > 0) {
ok = xf86EloGetPacket(reply, &reply_p, &sum, fd);
/*
* Do not report an error on a 'P' query as the controller
* might be a 2310.
*/
if (ok == Success && reply[1] != type && type != ELO_PARAMETER) {
DBG(3, ErrorF("Wrong reply received\n"));
ok = !Success;
}
}
else {
DBG(3, ErrorF("No answer from link : %d\n", result));
}
if (result == 0) {
i--;
}
} while(ok != Success && i);
return ok;
}
/*
***************************************************************************
*
* xf86EloWaitAck --
* Wait for an acknowledge from the controller. Returns Success if
* acknowledge received and reported no errors.
*
***************************************************************************
*/
static Bool
xf86EloWaitAck(int fd)
{
unsigned char packet[ELO_PACKET_SIZE];
int i, nb_errors;
if (xf86EloWaitReply(ELO_ACK, packet, fd) == Success) {
for (i = 0, nb_errors = 0; i < 4; i++) {
if (packet[2 + i] != '0') {
nb_errors++;
}
}
if (nb_errors != 0) {
DBG(2, ErrorF("Elographics acknowledge packet reports %d errors\n",
nb_errors));
}
return Success;
/* return (nb_errors < 4) ? Success : !Success;*/
}
else {
return !Success;
}
}
/*
***************************************************************************
*
* xf86EloSendQuery --
* Emit a query to the controller and blocks until the reply and
* the acknowledge are read.
*
* The reply is left in reply. The function returns Success if the
* reply is valid and !Success otherwise.
*
***************************************************************************
*/
static Bool
xf86EloSendQuery(unsigned char *request,
unsigned char *reply,
int fd)
{
Bool ok;
if (xf86EloSendPacket(request, fd) == Success) {
ok = xf86EloWaitReply(toupper(request[1]), reply, fd);
if (ok == Success) {
ok = xf86EloWaitAck(fd);
}
return ok;
}
else {
return !Success;
}
}
/*
***************************************************************************
*
* xf86EloSendControl --
* Emit a control command to the controller and wait for acknowledge.
*
* Returns Success if acknowledge received and reported no error.
*
***************************************************************************
*/
static Bool
xf86EloSendControl(unsigned char *control,
int fd)
{
if (xf86EloSendPacket(control, fd) == Success) {
return xf86EloWaitAck(fd);
}
else {
return !Success;
}
}
/*
***************************************************************************
*
* xf86EloPrintIdent --
* Print type of touchscreen and features on controller board.
*
***************************************************************************
*/
static void
xf86EloPrintIdent(unsigned char *packet,
EloPrivatePtr priv)
{
xf86Msg(X_PROBED, "Elographics touchscreen is a ");
switch(packet[2]) {
case '0':
xf86Msg(X_NONE, "AccuTouch");
break;
case '1':
xf86Msg(X_NONE, "DuraTouch");
break;
case '2':
xf86Msg(X_NONE, "Intellitouch");
break;
}
xf86Msg(X_NONE, ", connected through a ");
switch(packet[3]) {
case '0':
xf86Msg(X_NONE, "serial link.\n");
break;
case '1':
xf86Msg(X_NONE, "PC-Bus port.\n");
break;
case '2':
xf86Msg(X_NONE, "Micro Channel port.\n");
break;
}
xf86Msg(X_PROBED, "The controller is a model ");
if (packet[8] & 1) {
if (priv->is_a_2310) {
xf86Msg(X_NONE, "E281-2310");
}
else {
xf86Msg(X_NONE, "E271-2210");
}
}
else {
xf86Msg(X_NONE, "E271-2200");
}
xf86Msg(X_NONE, ", firmware revision %d.%d.\n", packet[6], packet[5]);
if (packet[4]) {
xf86Msg(X_PROBED, " Additional features:\n");
if (packet[4] & 0x10) {
xf86Msg(X_PROBED, " External A/D converter\n");
}
if (packet[4] & 0x20) {
xf86Msg(X_PROBED, " 32Ko RAM\n");
}
if (packet[4] & 0x40) {
xf86Msg(X_PROBED, " RAM onboard\n");
}
if (packet[4] & 0x80) {
xf86Msg(X_PROBED, " Z axis active\n");
}
xf86Msg(X_NONE, "\n");
}
}
/*
***************************************************************************
*
* xf86EloPtrControl --
*
***************************************************************************
*/
static void
xf86EloPtrControl(DeviceIntPtr dev,
PtrCtrl *ctrl)
{
}
/*
***************************************************************************
*
* xf86EloControl --
*
***************************************************************************
*/
static Bool
xf86EloControl(DeviceIntPtr dev,
int mode)
{
InputInfoPtr pInfo = (InputInfoPtr) dev->public.devicePrivate;
EloPrivatePtr priv = (EloPrivatePtr)(pInfo->private);
unsigned char map[] = { 0, 1 };
unsigned char req[ELO_PACKET_SIZE];
unsigned char reply[ELO_PACKET_SIZE];
Atom btn_label;
Atom axis_labels[2] = { 0, 0 };
int x0, x1, y0, y1;
switch(mode) {
case DEVICE_INIT:
{
DBG(2, ErrorF("Elographics touchscreen init...\n"));
if (priv->screen_no >= screenInfo.numScreens ||
priv->screen_no < 0) {
priv->screen_no = 0;
}
priv->screen_width = screenInfo.screens[priv->screen_no]->width;
priv->screen_height = screenInfo.screens[priv->screen_no]->height;
/*
* Device reports button press for up to 1 button.
*/
if (InitButtonClassDeviceStruct(dev, 1, &btn_label, map) == FALSE) {
ErrorF("Unable to allocate Elographics touchscreen ButtonClassDeviceStruct\n");
return !Success;
}
if (InitFocusClassDeviceStruct(dev) == FALSE) {
ErrorF("Unable to allocate Elographics touchscreen FocusClassDeviceStruct\n");
return !Success;
}
if (InitPtrFeedbackClassDeviceStruct(dev, xf86EloPtrControl) == FALSE) {
ErrorF("unable to init ptr feedback\n");
return !Success;
}
/*
* Device reports motions on 2 axes in absolute coordinates.
* Axes min and max values are reported in raw coordinates.
* Resolution is computed roughly by the difference between
* max and min values scaled from the approximate size of the
* screen to fit one meter.
*/
if (InitValuatorClassDeviceStruct(dev, 2, axis_labels,
GetMotionHistorySize(), Absolute) == FALSE) {
ErrorF("Unable to allocate Elographics touchscreen ValuatorClassDeviceStruct\n");
return !Success;
}
else {
/* Correct the coordinates for possibly inverted axis.
Leave priv->variables untouched so we can check for
inversion on incoming events.
*/
y0 = min(priv->min_y, priv->max_y);
y1 = max(priv->min_y, priv->max_y);
x0 = min(priv->min_x, priv->max_x);
x1 = max(priv->min_x, priv->max_x);
/* I will map coordinates myself */
InitValuatorAxisStruct(dev, 0,
axis_labels[0],
x0, x1,
9500,
0 /* min_res */,
9500 /* max_res */,
Absolute);
InitValuatorAxisStruct(dev, 1,
axis_labels[1],
y0, y1,
10500,
0 /* min_res */,
10500 /* max_res */,
Absolute);
}
if (InitFocusClassDeviceStruct(dev) == FALSE) {
ErrorF("Unable to allocate Elographics touchscreen FocusClassDeviceStruct\n");
}
/*
* Allocate the motion events buffer.
*/
xf86MotionHistoryAllocate(pInfo);
DBG(2, ErrorF("Done.\n"));
return Success;
}
case DEVICE_ON:
DBG(2, ErrorF("Elographics touchscreen on...\n"));
if (pInfo->fd < 0) {
DBG(2, ErrorF("Elographics touchscreen opening : %s\n", priv->input_dev));
pInfo->fd = xf86OpenSerial(pInfo->options);
if (pInfo->fd < 0) {
ErrorF("Unable to open Elographics touchscreen device");
return !Success;
}
if (priv->model != MODEL_SUNIT_D)
{
/*
* Try to see if the link is at the specified rate and
* ask the controller to report various infos.
*/
memset(req, 0, ELO_PACKET_SIZE);
req[1] = tolower(ELO_PARAMETER);
if (xf86EloSendQuery(req, reply, pInfo->fd) != Success) {
priv->is_a_2310 = 1;
ErrorF("Not at the specified rate or model 2310, will continue\n");
}
/*
* Ask the controller to report various infos.
*/
memset(req, 0, ELO_PACKET_SIZE);
req[1] = tolower(ELO_ID);
if (xf86EloSendQuery(req, reply, pInfo->fd) == Success) {
xf86EloPrintIdent(reply, priv);
}
else {
DBG(2, ErrorF("Unable to ask Elographics touchscreen identification... Maybe it's GeneralTouch touchscreen...\n"));
}
/*
* Set the operating mode: Stream, no scaling, no calibration,
* no range checking, no trim, tracking enabled.
*/
memset(req, 0, ELO_PACKET_SIZE);
req[1] = ELO_MODE;
req[3] = ELO_TOUCH_MODE | ELO_STREAM_MODE | ELO_UNTOUCH_MODE;
req[4] = ELO_TRACKING_MODE;
if (xf86EloSendControl(req, pInfo->fd) != Success) {
DBG(2, ErrorF("Unable to change Elographics touchscreen operating mode... Maybe it's GeneralTouch touchscreen...\n"));
}
/*
* Set the touch reports timings from configuration data.
*/
memset(req, 0, ELO_PACKET_SIZE);
req[1] = ELO_REPORT;
req[2] = priv->untouch_delay;
req[3] = priv->report_delay;
if (xf86EloSendControl(req, pInfo->fd) != Success) {
DBG(2, ErrorF("Unable to change Elographics touchscreen reports timings... Maybe it's GeneralTouch touchscreen...\n"));
}
}
xf86AddEnabledDevice(pInfo);
dev->public.on = TRUE;
}
DBG(2, ErrorF("Done\n"));
return Success;
/*
* Deactivate the device. After this, the device will not emit
* events until a subsequent DEVICE_ON. Thus, we can momentarily
* close the port.
*/
case DEVICE_OFF:
DBG(2, ErrorF("Elographics touchscreen off...\n"));
dev->public.on = FALSE;
if (pInfo->fd >= 0) {
xf86RemoveEnabledDevice(pInfo);
}
SYSCALL(close(pInfo->fd));
pInfo->fd = -1;
DBG(2, ErrorF("Done\n"));
return Success;
/*
* Final close before server exit. This is used during server shutdown.
* Close the port and free all the resources.
*/
case DEVICE_CLOSE:
DBG(2, ErrorF("Elographics touchscreen close...\n"));
dev->public.on = FALSE;
if (pInfo->fd >= 0) {
xf86RemoveEnabledDevice(pInfo);
}
SYSCALL(close(pInfo->fd));
pInfo->fd = -1;
DBG(2, ErrorF("Done\n"));
return Success;
#if GET_ABI_MAJOR(ABI_XINPUT_VERSION) * 100 + GET_ABI_MINOR(ABI_XINPUT_VERSION) >= 1901
case DEVICE_ABORT:
return Success;
#endif
default:
ErrorF("unsupported mode=%d\n", mode);
return BadValue;
}
}
/*
***************************************************************************
*
* xf86EloAllocate --
*
***************************************************************************
*/
static int
xf86EloAllocate(InputDriverPtr drv, InputInfoPtr pInfo)
{
EloPrivatePtr priv;
priv = malloc(sizeof(EloPrivateRec));
if (!priv)
return BadAlloc;
priv->input_dev = strdup(ELO_PORT);
priv->min_x = 0;
priv->max_x = 3000;
priv->min_y = 0;
priv->max_y = 3000;
priv->untouch_delay = ELO_UNTOUCH_DELAY;
priv->report_delay = ELO_REPORT_DELAY;
priv->screen_no = 0;
priv->screen_width = -1;
priv->screen_height = -1;
priv->inited = 0;
priv->is_a_2310 = 0;
priv->checksum = ELO_INIT_CHECKSUM;
priv->packet_buf_p = 0;
priv->swap_axes = 0;
pInfo->device_control = xf86EloControl;
pInfo->read_input = xf86EloReadInput;
pInfo->control_proc = NULL;
pInfo->switch_mode = NULL;
pInfo->private = priv;
pInfo->type_name = XI_TOUCHSCREEN;
return Success;
}
static void
xf86EloUninit(InputDriverPtr drv,
InputInfoPtr pInfo,
int flags)
{
EloPrivatePtr priv = (EloPrivatePtr) pInfo->private;
free(priv->input_dev);
free(priv);
pInfo->private = NULL;
xf86DeleteInput(pInfo, 0);
}
static
#if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 18
const
#endif
char *default_options[] = {
"BaudRate", "9600",
"StopBits", "1",
"DataBits", "8",
"Parity", "None",
"FlowControl", "None",
NULL
};
static int
xf86EloInit(InputDriverPtr drv,
InputInfoPtr pInfo,
int flags)
{
EloPrivatePtr priv=NULL;
const char *str;
int portrait = 0;
int height, width;
char *opt_model;
Model* model;
int rc;
rc = xf86EloAllocate(drv, pInfo);
if (rc != Success)
return rc;
priv = pInfo->private;
str = xf86SetStrOption(pInfo->options, "Device", NULL);
if (!str) {
xf86Msg(X_ERROR, "%s: No Device specified in Elographics module config.\n",
pInfo->name);
return BadValue;
} else {
pInfo->fd = xf86OpenSerial(pInfo->options);
if (pInfo->fd < 0) {
xf86Msg(X_ERROR, "%s: Unable to open Elographics touchscreen device %s", pInfo->name, str);
return BadValue;
}
xf86CloseSerial(pInfo->fd);
pInfo->fd = -1;
}
priv->input_dev = strdup(str);
opt_model = xf86SetStrOption(pInfo->options, "Model", NULL);
model = SupportedModels;
priv->model = MODEL_UNKNOWN;
while(model->type != MODEL_UNKNOWN && opt_model)
{
if (!strcmp(model->name, opt_model))
{
priv->model = model->type;
break;
}
model++;
}
priv->screen_no = xf86SetIntOption(pInfo->options, "ScreenNo", 0);
xf86Msg(X_CONFIG, "Elographics associated screen: %d\n", priv->screen_no);
priv->untouch_delay = xf86SetIntOption(pInfo->options, "UntouchDelay", ELO_UNTOUCH_DELAY);
xf86Msg(X_CONFIG, "Elographics untouch delay: %d ms\n", priv->untouch_delay*10);
priv->report_delay = xf86SetIntOption(pInfo->options, "ReportDelay", ELO_REPORT_DELAY);
xf86Msg(X_CONFIG, "Elographics report delay: %d ms\n", priv->report_delay*10);
priv->max_x = xf86SetIntOption(pInfo->options, "MaxX", 3000);
xf86Msg(X_CONFIG, "Elographics maximum x position: %d\n", priv->max_x);
priv->min_x = xf86SetIntOption(pInfo->options, "MinX", 0);
xf86Msg(X_CONFIG, "Elographics minimum x position: %d\n", priv->min_x);
priv->max_y = xf86SetIntOption(pInfo->options, "MaxY", 3000);
xf86Msg(X_CONFIG, "Elographics maximum y position: %d\n", priv->max_y);
priv->min_y = xf86SetIntOption(pInfo->options, "MinY", 0);
xf86Msg(X_CONFIG, "Elographics minimum y position: %d\n", priv->min_y);
priv->swap_axes = xf86SetBoolOption(pInfo->options, "SwapXY", 0);
if (priv->swap_axes) {
xf86Msg(X_CONFIG, "Elographics device will work with X and Y axes swapped\n");
}
debug_level = xf86SetIntOption(pInfo->options, "DebugLevel", 0);
if (debug_level) {
#if DEBUG
xf86Msg(X_CONFIG, "Elographics debug level sets to %d\n", debug_level);
#else
xf86Msg(X_INFO, "Elographics debug not available\n");
#endif
}
str = xf86SetStrOption(pInfo->options, "PortraitMode", "Landscape");
if (strcmp(str, "Portrait") == 0) {
portrait = 1;
}
else if (strcmp(str, "PortraitCCW") == 0) {
portrait = -1;
}
else if (strcmp(str, "Landscape") != 0) {
xf86Msg(X_ERROR, "Elographics portrait mode should be: Portrait, Landscape or PortraitCCW");
str = "Landscape";
}
xf86Msg(X_CONFIG, "Elographics device will work in %s mode\n", str);
width = priv->max_x - priv->min_x;
height = priv->max_y - priv->min_y;
if (width == 0) {
xf86Msg(X_ERROR, "Elographics: Cannot configure touchscreen with width 0\n");
return BadValue;
}
else if (width < 0) {
xf86Msg(X_INFO, "Elographics: reverse x mode (minimum x position >= maximum x position)\n");
}
if (height == 0) {
xf86Msg(X_ERROR, "Elographics: Cannot configure touchscreen with height 0\n");
return BadValue;
}
else if (height < 0) {
xf86Msg(X_INFO, "Elographics: reverse y mode (minimum y position >= maximum y position)\n");
}
if (portrait == 1) {
/*
* Portrait Clockwise: reverse Y axis and exchange X and Y.
*/
int tmp;
tmp = priv->min_y;
priv->min_y = priv->max_y;
priv->max_y = tmp;
priv->swap_axes = (priv->swap_axes==0) ? 1 : 0;
}
else if (portrait == -1) {
/*
* Portrait Counter Clockwise: reverse X axis and exchange X and Y.
*/
int tmp;
tmp = priv->min_x;
priv->min_x = priv->max_x;
priv->max_x = tmp;
priv->swap_axes = (priv->swap_axes==0) ? 1 : 0;
}
return Success;
}
_X_EXPORT InputDriverRec ELOGRAPHICS = {
1, /* driver version */
"elographics", /* driver name */
NULL, /* identify */
xf86EloInit, /* pre-init */
xf86EloUninit, /* un-init */
NULL, /* module */
default_options
};
static pointer
Plug(pointer module,
pointer options,
int *errmaj,
int *errmin)
{
xf86AddInputDriver(&ELOGRAPHICS, module, 0);
return module;
}
static void
Unplug(pointer p)
{
DBG(1, ErrorF("EloUnplug\n"));
}
static XF86ModuleVersionInfo version_rec = {
"elographics",
MODULEVENDORSTRING,
MODINFOSTRING1,
MODINFOSTRING2,
XORG_VERSION_CURRENT,
PACKAGE_VERSION_MAJOR, PACKAGE_VERSION_MINOR, PACKAGE_VERSION_PATCHLEVEL,
ABI_CLASS_XINPUT,
ABI_XINPUT_VERSION,
MOD_CLASS_XINPUT,
{ 0, 0, 0, 0 }
};
/*
* This is the entry point in the module. The name
* is setup after the pattern <module_name>ModuleData.
* Do not change it.
*/
_X_EXPORT XF86ModuleData elographicsModuleData = { &version_rec, Plug, Unplug };
Reference in New Issue View Git Blame Copy Permalink