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-rw-r--r--drv_dpf.c478
1 files changed, 240 insertions, 238 deletions
diff --git a/drv_dpf.c b/drv_dpf.c
index eff490e..33c4958 100644
--- a/drv_dpf.c
+++ b/drv_dpf.c
@@ -122,11 +122,11 @@ static char Name[] = "DPF";
* Dpf status
*/
static struct {
- unsigned char *lcdBuf; // Display data buffer
+ unsigned char *lcdBuf; // Display data buffer
unsigned char *xferBuf; // USB transfer buffer
- DPFAXHANDLE dpfh; // Handle for dpf access
- int pwidth; // Physical display width
- int pheight; // Physical display height
+ DPFAXHANDLE dpfh; // Handle for dpf access
+ int pwidth; // Physical display width
+ int pheight; // Physical display height
// Flags to translate logical to physical orientation
int isPortrait;
@@ -160,7 +160,7 @@ static struct {
static void drv_set_pixel(int x, int y, RGBA pix)
{
int changed = 0;
-
+
int sx = DCOLS;
int sy = DROWS;
int lx = x % sx;
@@ -168,39 +168,41 @@ static void drv_set_pixel(int x, int y, RGBA pix)
if (dpf.flip) {
// upside down orientation
- lx = DCOLS - 1 - lx;
- ly = DROWS - 1 - ly;
+ lx = DCOLS - 1 - lx;
+ ly = DROWS - 1 - ly;
}
if (dpf.rotate90) {
- // wrong Orientation, rotate
- int i = ly;
- ly = dpf.pheight - 1 - lx;
- lx = i;
+ // wrong Orientation, rotate
+ int i = ly;
+ ly = dpf.pheight - 1 - lx;
+ lx = i;
}
- if (lx < 0 || lx >= (int) dpf.pwidth || ly < 0 || ly >= (int) dpf.pheight)
- {
- error("dpf: x/y out of bounds (x=%d, y=%d, rot=%d, flip=%d, lx=%d, ly=%d)\n", x, y, dpf.rotate90, dpf.flip, lx, ly);
- return;
+ if (lx < 0 || lx >= (int) dpf.pwidth || ly < 0 || ly >= (int) dpf.pheight) {
+ error("dpf: x/y out of bounds (x=%d, y=%d, rot=%d, flip=%d, lx=%d, ly=%d)\n", x, y, dpf.rotate90, dpf.flip, lx,
+ ly);
+ return;
}
unsigned char c1 = _RGB565_0(pix);
unsigned char c2 = _RGB565_1(pix);
unsigned int i = (ly * dpf.pwidth + lx) * DPF_BPP;
- if (dpf.lcdBuf[i] != c1 || dpf.lcdBuf[i+1] != c2)
- {
- dpf.lcdBuf[i] = c1;
- dpf.lcdBuf[i+1] = c2;
+ if (dpf.lcdBuf[i] != c1 || dpf.lcdBuf[i + 1] != c2) {
+ dpf.lcdBuf[i] = c1;
+ dpf.lcdBuf[i + 1] = c2;
changed = 1;
}
- if (changed)
- {
- if (lx < dpf.minx) dpf.minx = lx;
- if (lx > dpf.maxx) dpf.maxx = lx;
- if (ly < dpf.miny) dpf.miny = ly;
- if (ly > dpf.maxy) dpf.maxy = ly;
+ if (changed) {
+ if (lx < dpf.minx)
+ dpf.minx = lx;
+ if (lx > dpf.maxx)
+ dpf.maxx = lx;
+ if (ly < dpf.miny)
+ dpf.miny = ly;
+ if (ly > dpf.maxy)
+ dpf.maxy = ly;
}
}
@@ -259,78 +261,74 @@ static int drv_dpf_start(const char *section)
// Get the device
dev = cfg_get(section, "Port", NULL);
if (dev == NULL || *dev == '\0') {
- error("dpf: no '%s.Port' entry from %s", section, cfg_source());
- return -1;
+ error("dpf: no '%s.Port' entry from %s", section, cfg_source());
+ return -1;
}
-
// Get font
s = cfg_get(section, "Font", "6x8");
if (s == NULL || *s == '\0') {
- error("%s: no '%s.Font' entry from %s", Name, section, cfg_source());
- return -1;
+ error("%s: no '%s.Font' entry from %s", Name, section, cfg_source());
+ return -1;
}
XRES = -1;
YRES = -1;
if (sscanf(s, "%dx%d", &XRES, &YRES) != 2 || XRES < 1 || YRES < 1) {
- error("%s: bad Font '%s' from %s", Name, s, cfg_source());
- return -1;
+ error("%s: bad Font '%s' from %s", Name, s, cfg_source());
+ return -1;
}
/* we dont want fonts below 6 width */
if (XRES < 6) {
- error("%s: bad Font '%s' width '%d' using minimum of 6)", Name, s, XRES);
- XRES = 6;
+ error("%s: bad Font '%s' width '%d' using minimum of 6)", Name, s, XRES);
+ XRES = 6;
}
/* we dont want fonts below 8 height */
if (YRES < 8) {
- error("%s: bad Font '%s' height '%d' using minimum of 8)", Name, s, YRES);
- YRES = 8;
+ error("%s: bad Font '%s' height '%d' using minimum of 8)", Name, s, YRES);
+ YRES = 8;
}
-
// Get the logical orientation (0 = landscape, 1 = portrait, 2 = reverse landscape, 3 = reverse portrait)
if (cfg_number(section, "Orientation", 0, 0, 3, &i) > 0)
- dpf.orientation = i;
+ dpf.orientation = i;
else
- dpf.orientation = 0;
+ dpf.orientation = 0;
// Get the backlight value (0 = off, 7 = max brightness)
if (cfg_number(section, "Backlight", 0, 0, 7, &i) > 0)
- dpf.backlight = i;
+ dpf.backlight = i;
else
- dpf.backlight = 7;
+ dpf.backlight = 7;
/* open communication with the display */
dpf.dpfh = dpf_ax_open(dev);
if (dpf.dpfh == NULL) {
- error("dpf: cannot open dpf device %s", dev);
- return -1;
+ error("dpf: cannot open dpf device %s", dev);
+ return -1;
}
-
// Get dpfs physical dimensions
dpf.pwidth = dpf_ax_getwidth(dpf.dpfh);
dpf.pheight = dpf_ax_getheight(dpf.dpfh);
-
+
// See, if we have to rotate the display
dpf.isPortrait = dpf.pwidth < dpf.pheight;
if (dpf.isPortrait) {
if (dpf.orientation == 0 || dpf.orientation == 2)
dpf.rotate90 = 1;
- }
- else
- if (dpf.orientation == 1 || dpf.orientation == 3)
- dpf.rotate90 = 1;
- dpf.flip = (!dpf.isPortrait && dpf.rotate90); // adjust to make rotate por/land = physical por/land
- if (dpf.orientation > 1) dpf.flip = !dpf.flip;
+ } else if (dpf.orientation == 1 || dpf.orientation == 3)
+ dpf.rotate90 = 1;
+ dpf.flip = (!dpf.isPortrait && dpf.rotate90); // adjust to make rotate por/land = physical por/land
+ if (dpf.orientation > 1)
+ dpf.flip = !dpf.flip;
// allocate display buffer + temp transfer buffer
dpf.lcdBuf = malloc(dpf.pwidth * dpf.pheight * DPF_BPP);
dpf.xferBuf = malloc(dpf.pwidth * dpf.pheight * DPF_BPP);
// clear display buffer + set it to "dirty"
- memset(dpf.lcdBuf, 0, dpf.pwidth * dpf.pheight * DPF_BPP); //Black
+ memset(dpf.lcdBuf, 0, dpf.pwidth * dpf.pheight * DPF_BPP); //Black
dpf.minx = 0;
dpf.maxx = dpf.pwidth - 1;
dpf.miny = 0;
@@ -342,7 +340,7 @@ static int drv_dpf_start(const char *section)
// Set backlight (brightness)
dpf_ax_setbacklight(dpf.dpfh, dpf.backlight);
-
+
return 0;
}
@@ -354,9 +352,11 @@ static int drv_dpf_start(const char *section)
static void plugin_backlight(RESULT * result, RESULT * arg1)
{
int b = R2N(arg1);
- if (b < 0) b = 0;
- if (b > 7) b = 7;
-
+ if (b < 0)
+ b = 0;
+ if (b > 7)
+ b = 7;
+
dpf_ax_setbacklight(dpf.dpfh, b);
SetResult(&result, R_NUMBER, &b);
}
@@ -443,11 +443,11 @@ DRIVER drv_DPF = {
#include <usb.h>
-#define AX206_VID 0x1908 // Hacked frames USB Vendor ID
-#define AX206_PID 0x0102 // Hacked frames USB Product ID
+#define AX206_VID 0x1908 // Hacked frames USB Vendor ID
+#define AX206_PID 0x0102 // Hacked frames USB Product ID
#define USBCMD_SETPROPERTY 0x01 // USB command: Set property
-#define USBCMD_BLIT 0x12 // USB command: Blit to screen
+#define USBCMD_BLIT 0x12 // USB command: Blit to screen
/* Generic SCSI device stuff */
@@ -456,14 +456,14 @@ DRIVER drv_DPF = {
/* The DPF context structure */
typedef
-struct dpf_context {
- usb_dev_handle *udev;
- unsigned int width;
- unsigned int height;
+ struct dpf_context {
+ usb_dev_handle *udev;
+ unsigned int width;
+ unsigned int height;
} DPFContext;
-static int wrap_scsi(DPFContext *h, unsigned char *cmd, int cmdlen, char out,
- unsigned char *data, unsigned long block_len);
+static int wrap_scsi(DPFContext * h, unsigned char *cmd, int cmdlen, char out,
+ unsigned char *data, unsigned long block_len);
/**
* Open DPF device.
@@ -477,89 +477,88 @@ static int wrap_scsi(DPFContext *h, unsigned char *cmd, int cmdlen, char out,
*/
DPFAXHANDLE dpf_ax_open(const char *dev)
{
- DPFContext *dpf;
- int index = -1;
- usb_dev_handle *u;
-
- if (dev && strlen(dev) == 4 && (strncmp(dev, "usb", 3) == 0 || strncmp(dev, "dpf", 3) == 0))
- index = dev[3] - '0';
-
- if (index < 0 || index > 9) {
- fprintf(stderr, "dpf_ax_open: wrong device '%s'. Please specify a string like 'usb0'\n", dev);
- return NULL;
- }
+ DPFContext *dpf;
+ int index = -1;
+ usb_dev_handle *u;
- usb_init();
- usb_find_busses();
- usb_find_devices();
-
- struct usb_bus *b = usb_get_busses();
- struct usb_device *d = NULL;
- int enumeration = 0;
- int found = 0;
-
- while (b && !found) {
- d = b->devices;
- while (d) {
- if ((d->descriptor.idVendor == AX206_VID) && (d->descriptor.idProduct == AX206_PID)) {
- fprintf(stderr, "dpf_ax_open: found AX206 #%d\n", enumeration+1);
- if (enumeration == index) {
- found = 1;
- break;
- }
- else enumeration++;
- }
- d = d->next;
- }
- b = b->next;
- }
+ if (dev && strlen(dev) == 4 && (strncmp(dev, "usb", 3) == 0 || strncmp(dev, "dpf", 3) == 0))
+ index = dev[3] - '0';
- if (!d) {
- fprintf(stderr,"dpf_ax_open: no matching USB device '%s' found!\n", dev);
- return NULL;
- }
+ if (index < 0 || index > 9) {
+ fprintf(stderr, "dpf_ax_open: wrong device '%s'. Please specify a string like 'usb0'\n", dev);
+ return NULL;
+ }
- dpf = (DPFContext *) malloc(sizeof(DPFContext));
- if (!dpf) {
- fprintf(stderr, "dpf_ax_open: error allocation memory.\n");
- return NULL;
+ usb_init();
+ usb_find_busses();
+ usb_find_devices();
+
+ struct usb_bus *b = usb_get_busses();
+ struct usb_device *d = NULL;
+ int enumeration = 0;
+ int found = 0;
+
+ while (b && !found) {
+ d = b->devices;
+ while (d) {
+ if ((d->descriptor.idVendor == AX206_VID) && (d->descriptor.idProduct == AX206_PID)) {
+ fprintf(stderr, "dpf_ax_open: found AX206 #%d\n", enumeration + 1);
+ if (enumeration == index) {
+ found = 1;
+ break;
+ } else
+ enumeration++;
+ }
+ d = d->next;
}
+ b = b->next;
+ }
- u = usb_open(d);
- if (u == NULL) {
- fprintf(stderr,"dpf_ax_open: failed to open usb device '%s'!\n", dev);
- free(dpf);
- return NULL;
- }
+ if (!d) {
+ fprintf(stderr, "dpf_ax_open: no matching USB device '%s' found!\n", dev);
+ return NULL;
+ }
- if (usb_claim_interface(u, 0) < 0) {
- fprintf(stderr,"dpf_ax_open: failed to claim usb device!\n");
- usb_close(u);
- free(dpf);
- return NULL;
- }
+ dpf = (DPFContext *) malloc(sizeof(DPFContext));
+ if (!dpf) {
+ fprintf(stderr, "dpf_ax_open: error allocation memory.\n");
+ return NULL;
+ }
- dpf->udev = u;
-
- static unsigned char buf[5];
- static unsigned char cmd[16] = {
- 0xcd, 0, 0, 0,
- 0, 2, 0, 0,
- 0, 0, 0, 0,
- 0, 0, 0, 0
- };
- cmd[5] = 2; // get LCD parameters
- if (wrap_scsi(dpf, cmd, sizeof(cmd), DIR_IN, buf, 5) == 0) {
- dpf->width = (buf[0]) | (buf[1] << 8);
- dpf->height = (buf[2]) | (buf[3] << 8);
- fprintf(stderr, "dpf_ax_open: got LCD dimensions: %dx%d\n", dpf->width, dpf->height);
- }
- else {
- fprintf(stderr, "dpf_ax_open: error reading LCD dimensions!\n");
- dpf_ax_close(dpf);
- return NULL;
- }
- return (DPFAXHANDLE) dpf;
+ u = usb_open(d);
+ if (u == NULL) {
+ fprintf(stderr, "dpf_ax_open: failed to open usb device '%s'!\n", dev);
+ free(dpf);
+ return NULL;
+ }
+
+ if (usb_claim_interface(u, 0) < 0) {
+ fprintf(stderr, "dpf_ax_open: failed to claim usb device!\n");
+ usb_close(u);
+ free(dpf);
+ return NULL;
+ }
+
+ dpf->udev = u;
+
+ static unsigned char buf[5];
+ static unsigned char cmd[16] = {
+ 0xcd, 0, 0, 0,
+ 0, 2, 0, 0,
+ 0, 0, 0, 0,
+ 0, 0, 0, 0
+ };
+ cmd[5] = 2; // get LCD parameters
+ if (wrap_scsi(dpf, cmd, sizeof(cmd), DIR_IN, buf, 5) == 0) {
+ dpf->width = (buf[0]) | (buf[1] << 8);
+ dpf->height = (buf[2]) | (buf[3] << 8);
+ fprintf(stderr, "dpf_ax_open: got LCD dimensions: %dx%d\n", dpf->width, dpf->height);
+ } else {
+ fprintf(stderr, "dpf_ax_open: error reading LCD dimensions!\n");
+ dpf_ax_close(dpf);
+ return NULL;
+ }
+ return (DPFAXHANDLE) dpf;
}
/**
@@ -568,11 +567,11 @@ DPFAXHANDLE dpf_ax_open(const char *dev)
void dpf_ax_close(DPFAXHANDLE h)
{
- DPFContext *dpf = (DPFContext *) h;
-
- usb_release_interface(dpf->udev, 0);
- usb_close(dpf->udev);
- free(dpf);
+ DPFContext *dpf = (DPFContext *) h;
+
+ usb_release_interface(dpf->udev, 0);
+ usb_close(dpf->udev);
+ free(dpf);
}
/** Get screen width.
@@ -581,7 +580,7 @@ void dpf_ax_close(DPFAXHANDLE h)
*/
int dpf_ax_getwidth(DPFAXHANDLE h)
{
- return ((DPFContext *) h)->width;
+ return ((DPFContext *) h)->width;
}
/** Get screen height.
@@ -590,15 +589,15 @@ int dpf_ax_getwidth(DPFAXHANDLE h)
*/
int dpf_ax_getheight(DPFAXHANDLE h)
{
- return ((DPFContext *) h)->height;
+ return ((DPFContext *) h)->height;
}
static
unsigned char g_excmd[16] = {
- 0xcd, 0, 0, 0,
- 0, 6, 0, 0,
- 0, 0, 0, 0,
- 0, 0, 0, 0
+ 0xcd, 0, 0, 0,
+ 0, 6, 0, 0,
+ 0, 0, 0, 0,
+ 0, 0, 0, 0
};
/** Blit data to screen.
@@ -608,22 +607,22 @@ unsigned char g_excmd[16] = {
*/
void dpf_ax_screen_blit(DPFAXHANDLE h, const unsigned char *buf, short rect[4])
{
- unsigned long len = (rect[2] - rect[0]) * (rect[3] - rect[1]);
- len <<= 1;
- unsigned char *cmd = g_excmd;
-
- cmd[6] = USBCMD_BLIT;
- cmd[7] = rect[0];
- cmd[8] = rect[0] >> 8;
- cmd[9] = rect[1];
- cmd[10] = rect[1] >> 8;
- cmd[11] = rect[2] - 1;
- cmd[12] = (rect[2] - 1) >> 8;
- cmd[13] = rect[3] - 1;
- cmd[14] = (rect[3] - 1) >> 8;
- cmd[15] = 0;
-
- wrap_scsi((DPFContext *) h, cmd, sizeof(g_excmd), DIR_OUT, (unsigned char*) buf, len);
+ unsigned long len = (rect[2] - rect[0]) * (rect[3] - rect[1]);
+ len <<= 1;
+ unsigned char *cmd = g_excmd;
+
+ cmd[6] = USBCMD_BLIT;
+ cmd[7] = rect[0];
+ cmd[8] = rect[0] >> 8;
+ cmd[9] = rect[1];
+ cmd[10] = rect[1] >> 8;
+ cmd[11] = rect[2] - 1;
+ cmd[12] = (rect[2] - 1) >> 8;
+ cmd[13] = rect[3] - 1;
+ cmd[14] = (rect[3] - 1) >> 8;
+ cmd[15] = 0;
+
+ wrap_scsi((DPFContext *) h, cmd, sizeof(g_excmd), DIR_OUT, (unsigned char *) buf, len);
}
/** Set backlight
@@ -632,91 +631,94 @@ void dpf_ax_screen_blit(DPFAXHANDLE h, const unsigned char *buf, short rect[4])
*/
void dpf_ax_setbacklight(DPFAXHANDLE h, int b)
{
- unsigned char *cmd = g_excmd;
+ unsigned char *cmd = g_excmd;
- if (b < 0) b = 0;
- if (b > 7) b = 7;
+ if (b < 0)
+ b = 0;
+ if (b > 7)
+ b = 7;
- cmd[6] = USBCMD_SETPROPERTY;
- cmd[7] = 0x01; // PROPERTY_BRIGHTNESS
- cmd[8] = 0x00; //PROPERTY_BRIGHTNESS >> 8;
- cmd[9] = b;
- cmd[10] = b >> 8;
+ cmd[6] = USBCMD_SETPROPERTY;
+ cmd[7] = 0x01; // PROPERTY_BRIGHTNESS
+ cmd[8] = 0x00; //PROPERTY_BRIGHTNESS >> 8;
+ cmd[9] = b;
+ cmd[10] = b >> 8;
- wrap_scsi((DPFContext *) h, cmd, sizeof(g_excmd), DIR_OUT, NULL, 0);
+ wrap_scsi((DPFContext *) h, cmd, sizeof(g_excmd), DIR_OUT, NULL, 0);
}
static unsigned char g_buf[] = {
- 0x55, 0x53, 0x42, 0x43, // dCBWSignature
- 0xde, 0xad, 0xbe, 0xef, // dCBWTag
- 0x00, 0x80, 0x00, 0x00, // dCBWLength
- 0x00, // bmCBWFlags: 0x80: data in (dev to host), 0x00: Data out
- 0x00, // bCBWLUN
- 0x10, // bCBWCBLength
-
- // SCSI cmd:
- 0xcd, 0x00, 0x00, 0x00,
- 0x00, 0x06, 0x11, 0xf8,
- 0x70, 0x00, 0x40, 0x00,
- 0x00, 0x00, 0x00, 0x00,
+ 0x55, 0x53, 0x42, 0x43, // dCBWSignature
+ 0xde, 0xad, 0xbe, 0xef, // dCBWTag
+ 0x00, 0x80, 0x00, 0x00, // dCBWLength
+ 0x00, // bmCBWFlags: 0x80: data in (dev to host), 0x00: Data out
+ 0x00, // bCBWLUN
+ 0x10, // bCBWCBLength
+
+ // SCSI cmd:
+ 0xcd, 0x00, 0x00, 0x00,
+ 0x00, 0x06, 0x11, 0xf8,
+ 0x70, 0x00, 0x40, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
};
#define ENDPT_OUT 1
#define ENDPT_IN 0x81
-static int wrap_scsi(DPFContext *h, unsigned char *cmd, int cmdlen, char out,
- unsigned char *data, unsigned long block_len)
+static int wrap_scsi(DPFContext * h, unsigned char *cmd, int cmdlen, char out,
+ unsigned char *data, unsigned long block_len)
{
- int len;
- int ret;
- static unsigned char ansbuf[13]; // Do not change size.
-
- g_buf[14] = cmdlen;
- memcpy(&g_buf[15], cmd, cmdlen);
-
- g_buf[8] = block_len;
- g_buf[9] = block_len >> 8;
- g_buf[10] = block_len >> 16;
- g_buf[11] = block_len >> 24;
-
- ret = usb_bulk_write(h->udev, ENDPT_OUT, (const char *)g_buf, sizeof(g_buf), 1000);
- if (ret < 0) return ret;
-
- if (out == DIR_OUT) {
- if (data) {
- ret = usb_bulk_write(h->udev, ENDPT_OUT, (const char* )data, block_len, 3000);
- if (ret != (int) block_len) {
- fprintf(stderr, "dpf_ax ERROR: bulk write.\n");
- return ret;
- }
- }
- } else if (data) {
- ret = usb_bulk_read(h->udev, ENDPT_IN, (char *) data, block_len, 4000);
- if (ret != (int) block_len) {
- fprintf(stderr, "dpf_ax ERROR: bulk read.\n");
- return ret;
- }
+ int len;
+ int ret;
+ static unsigned char ansbuf[13]; // Do not change size.
+
+ g_buf[14] = cmdlen;
+ memcpy(&g_buf[15], cmd, cmdlen);
+
+ g_buf[8] = block_len;
+ g_buf[9] = block_len >> 8;
+ g_buf[10] = block_len >> 16;
+ g_buf[11] = block_len >> 24;
+
+ ret = usb_bulk_write(h->udev, ENDPT_OUT, (const char *) g_buf, sizeof(g_buf), 1000);
+ if (ret < 0)
+ return ret;
+
+ if (out == DIR_OUT) {
+ if (data) {
+ ret = usb_bulk_write(h->udev, ENDPT_OUT, (const char *) data, block_len, 3000);
+ if (ret != (int) block_len) {
+ fprintf(stderr, "dpf_ax ERROR: bulk write.\n");
+ return ret;
+ }
}
- // get ACK:
- len = sizeof(ansbuf);
- int retry = 0;
- int timeout = 0;
- do {
- timeout = 0;
- ret = usb_bulk_read(h->udev, ENDPT_IN, (char *) ansbuf, len, 5000);
- if (ret != len) {
- fprintf(stderr, "dpf_ax ERROR: bulk ACK read.\n");
- timeout = 1;
- }
- retry++;
- } while (timeout && retry < 5);
- if (strncmp((char *) ansbuf, "USBS", 4)) {
- fprintf(stderr, "dpf_ax ERROR: got invalid reply\n.");
- return -1;
+ } else if (data) {
+ ret = usb_bulk_read(h->udev, ENDPT_IN, (char *) data, block_len, 4000);
+ if (ret != (int) block_len) {
+ fprintf(stderr, "dpf_ax ERROR: bulk read.\n");
+ return ret;
}
- // pass back return code set by peer:
- return ansbuf[12];
+ }
+ // get ACK:
+ len = sizeof(ansbuf);
+ int retry = 0;
+ int timeout = 0;
+ do {
+ timeout = 0;
+ ret = usb_bulk_read(h->udev, ENDPT_IN, (char *) ansbuf, len, 5000);
+ if (ret != len) {
+ fprintf(stderr, "dpf_ax ERROR: bulk ACK read.\n");
+ timeout = 1;
+ }
+ retry++;
+ } while (timeout && retry < 5);
+ if (strncmp((char *) ansbuf, "USBS", 4)) {
+ fprintf(stderr, "dpf_ax ERROR: got invalid reply\n.");
+ return -1;
+ }
+ // pass back return code set by peer:
+ return ansbuf[12];
}
//###################################################################
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