/* am7xxx - communication with AM7xxx based USB Pico Projectors and DPFs
*
- * Copyright (C) 2012 Antonio Ospite <ospite@studenti.unina.it>
+ * Copyright (C) 2012-2014 Antonio Ospite <ao2@ao2.it>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
#include "am7xxx.h"
#include "serialize.h"
+#include "tools.h"
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
-/* If we're not using GNU C, elide __attribute__
+/*
+ * If we're not using GNU C, elide __attribute__
* taken from: http://unixwiz.net/techtips/gnu-c-attributes.html)
*/
#ifndef __GNUC__
-# define __attribute__(x) /*NOTHING*/
+ #define __attribute__(x) /* NOTHING */
+#endif
+
+/*
+ * Fix printf format when compiling for Windows with MinGW, see:
+ * https://sourceforge.net/p/mingw-w64/wiki2/gnu%20printf/
+ */
+#ifdef __MINGW_PRINTF_FORMAT
+ #define AM7XXX_PRINTF_FORMAT __MINGW_PRINTF_FORMAT
+#else
+ #define AM7XXX_PRINTF_FORMAT printf
#endif
/* Control shared library symbols visibility */
static void log_message(am7xxx_context *ctx,
int level,
- const char *function,
+ const char *function_name,
int line,
const char *fmt,
- ...) __attribute__ ((format (printf, 5, 6)));
+ ...) __attribute__ ((format (AM7XXX_PRINTF_FORMAT, 5, 6)));
#define fatal(...) log_message(NULL, AM7XXX_LOG_FATAL, __func__, __LINE__, __VA_ARGS__)
#define error(ctx, ...) log_message(ctx, AM7XXX_LOG_ERROR, __func__, __LINE__, __VA_ARGS__)
#define debug(ctx, ...) log_message(ctx, AM7XXX_LOG_DEBUG, __func__, 0, __VA_ARGS__)
#define trace(ctx, ...) log_message(ctx, AM7XXX_LOG_TRACE, NULL, 0, __VA_ARGS__)
-#define AM7XXX_QUIRK_NO_POWER_MODE (1 << 0)
-#define AM7XXX_QUIRK_NO_ZOOM_MODE (1 << 1)
+struct am7xxx_ops {
+ int (*set_power_mode)(am7xxx_device *dev, am7xxx_power_mode power);
+ int (*set_zoom_mode)(am7xxx_device *dev, am7xxx_zoom_mode zoom);
+};
struct am7xxx_usb_device_descriptor {
const char *name;
uint16_t product_id;
uint8_t configuration; /* The bConfigurationValue of the device */
uint8_t interface_number; /* The bInterfaceNumber of the device */
- unsigned long quirks;
+ struct am7xxx_ops ops;
};
+static int default_set_power_mode(am7xxx_device *dev, am7xxx_power_mode power);
+static int picopix_set_power_mode(am7xxx_device *dev, am7xxx_power_mode power);
+static int default_set_zoom_mode(am7xxx_device *dev, am7xxx_zoom_mode zoom);
+static int picopix_set_zoom_mode(am7xxx_device *dev, am7xxx_zoom_mode zoom);
+
+#define DEFAULT_OPS { \
+ .set_power_mode = default_set_power_mode, \
+ .set_zoom_mode = default_set_zoom_mode, \
+}
+
static const struct am7xxx_usb_device_descriptor supported_devices[] = {
{
.name = "Acer C110",
.product_id = 0xc101,
.configuration = 2,
.interface_number = 0,
+ .ops = DEFAULT_OPS,
},
{
.name = "Acer C112",
.product_id = 0x5501,
.configuration = 2,
.interface_number = 0,
+ .ops = DEFAULT_OPS,
},
{
.name ="Aiptek PocketCinema T25",
.product_id = 0x2144,
.configuration = 2,
.interface_number = 0,
+ .ops = DEFAULT_OPS,
},
{
.name = "Philips/Sagemcom PicoPix 1020",
.product_id = 0x000e,
.configuration = 2,
.interface_number = 0,
+ .ops = DEFAULT_OPS,
},
{
.name = "Philips/Sagemcom PicoPix 2055",
.product_id = 0x0016,
.configuration = 2,
.interface_number = 0,
+ .ops = {
+ .set_power_mode = picopix_set_power_mode,
+ .set_zoom_mode = picopix_set_zoom_mode,
+ },
},
{
.name = "Philips/Sagemcom PicoPix 2330",
.product_id = 0x0019,
.configuration = 1,
.interface_number = 0,
- .quirks = AM7XXX_QUIRK_NO_POWER_MODE | AM7XXX_QUIRK_NO_ZOOM_MODE,
},
};
AM7XXX_PACKET_TYPE_IMAGE = 0x02,
AM7XXX_PACKET_TYPE_POWER = 0x04,
AM7XXX_PACKET_TYPE_ZOOM = 0x05,
+ AM7XXX_PACKET_TYPE_PICOPIX_POWER_LOW = 0x15,
+ AM7XXX_PACKET_TYPE_PICOPIX_POWER_MEDIUM = 0x16,
+ AM7XXX_PACKET_TYPE_PICOPIX_POWER_HIGH = 0x17,
+ AM7XXX_PACKET_TYPE_PICOPIX_ENABLE_TI = 0x18,
+ AM7XXX_PACKET_TYPE_PICOPIX_DISABLE_TI = 0x19,
} am7xxx_packet_type;
struct am7xxx_generic_header {
#ifdef DEBUG
+static void debug_dump_generic_header(am7xxx_context *ctx, struct am7xxx_generic_header *g)
+{
+ if (ctx == NULL || g == NULL)
+ return;
+
+ debug(ctx, "Generic header:\n");
+ debug(ctx, "\tfield0: 0x%08x (%u)\n", g->field0, g->field0);
+ debug(ctx, "\tfield1: 0x%08x (%u)\n", g->field1, g->field1);
+ debug(ctx, "\tfield2: 0x%08x (%u)\n", g->field2, g->field2);
+ debug(ctx, "\tfield3: 0x%08x (%u)\n", g->field3, g->field3);
+}
+
static void debug_dump_devinfo_header(am7xxx_context *ctx, struct am7xxx_devinfo_header *d)
{
if (ctx == NULL || d == NULL)
break;
default:
- debug(ctx, "Packet type not supported!\n");
+ debug(ctx, "Parsing data not supported for this packet type!\n");
+ debug_dump_generic_header(ctx, &(h->header_data.data));
break;
}
debug(ctx, "END\n\n");
{
/* The 3 below is the length of "xx " where xx is the hex string
* representation of a byte */
- return ((i+1) % (80/3));
+ return ((i + 1) % (80 / 3));
}
static void trace_dump_buffer(am7xxx_context *ctx, const char *message,
static int read_data(am7xxx_device *dev, uint8_t *buffer, unsigned int len)
{
int ret;
- int transferred = 0;
+ int transferred;
+ transferred = 0;
ret = libusb_bulk_transfer(dev->usb_device, 0x81, buffer, len, &transferred, 0);
if (ret != 0 || (unsigned int)transferred != len) {
- error(dev->ctx, "ret: %d\ttransferred: %d (expected %u)\n",
- ret, transferred, len);
+ error(dev->ctx, "%s. Transferred: %d (expected %u)\n",
+ libusb_error_name(ret), transferred, len);
return ret;
}
static int send_data(am7xxx_device *dev, uint8_t *buffer, unsigned int len)
{
int ret;
- int transferred = 0;
+ int transferred;
trace_dump_buffer(dev->ctx, "sending -->", buffer, len);
+ transferred = 0;
ret = libusb_bulk_transfer(dev->usb_device, 0x1, buffer, len, &transferred, 0);
if (ret != 0 || (unsigned int)transferred != len) {
- error(dev->ctx, "ret: %d\ttransferred: %d (expected %u)\n",
- ret, transferred, len);
+ error(dev->ctx, "%s. Transferred: %d (expected %u)\n",
+ libusb_error_name(ret), transferred, len);
return ret;
}
return 0;
}
-static void send_data_async_complete_cb(struct libusb_transfer *transfer)
+static void LIBUSB_CALL send_data_async_complete_cb(struct libusb_transfer *transfer)
{
am7xxx_device *dev = (am7xxx_device *)(transfer->user_data);
int *completed = &(dev->transfer_completed);
/* Make a copy of the buffer so the caller can safely reuse it just
* after libusb_submit_transfer() has returned. This technique
- * requires more allocations than a proper double-buffering approach
- * but it takes a lot less code. */
+ * requires more dynamic allocations compared to a proper
+ * double-buffering approach but it takes a lot less code. */
transfer_buffer = malloc(len);
if (transfer_buffer == NULL) {
error(dev->ctx, "cannot allocate transfer buffer (%s)\n",
return ret;
}
+static int send_command(am7xxx_device *dev, am7xxx_packet_type type)
+{
+ struct am7xxx_header h = {
+ .packet_type = type,
+ .direction = AM7XXX_DIRECTION_OUT,
+ .header_data_len = 0x00,
+ .unknown2 = 0x3e,
+ .unknown3 = 0x10,
+ .header_data = {
+ .data = {
+ .field0 = 0,
+ .field1 = 0,
+ .field2 = 0,
+ .field3 = 0,
+ },
+ },
+ };
+
+ return send_header(dev, &h);
+}
+
+
/* When level == AM7XXX_LOG_FATAL do not check the log_level from the context
* and print the message unconditionally, this makes it possible to print
* fatal messages even early on initialization, before the context has been
* set up */
static void log_message(am7xxx_context *ctx,
int level,
- const char *function,
+ const char *function_name,
int line,
const char *fmt,
...)
va_list ap;
if (level == AM7XXX_LOG_FATAL || (ctx && level <= ctx->log_level)) {
- if (function) {
- fprintf(stderr, "%s", function);
+ if (function_name) {
+ fprintf(stderr, "%s", function_name);
if (line)
fprintf(stderr, "[%d]", line);
fprintf(stderr, ": ");
new_device = malloc(sizeof(*new_device));
if (new_device == NULL) {
- fatal("cannot allocate a new device (%s)\n", strerror(errno));
+ debug(ctx, "cannot allocate a new device (%s)\n", strerror(errno));
return NULL;
}
memset(new_device, 0, sizeof(*new_device));
return current;
}
+static int open_device(am7xxx_context *ctx,
+ unsigned int device_index,
+ libusb_device *usb_dev,
+ am7xxx_device **dev)
+{
+ int ret;
+ int current_configuration;
+
+ *dev = find_device(ctx, device_index);
+ if (*dev == NULL) {
+ ret = -ENODEV;
+ goto out;
+ }
+
+ /* the usb device has already been opened */
+ if ((*dev)->usb_device) {
+ ret = 1;
+ goto out;
+ }
+
+ ret = libusb_open(usb_dev, &((*dev)->usb_device));
+ if (ret < 0) {
+ debug(ctx, "libusb_open failed: %s\n", libusb_error_name(ret));
+ goto out;
+ }
+
+ /* XXX, the device is now open, if any of the calls below fail we need
+ * to close it again before bailing out.
+ */
+
+ current_configuration = -1;
+ ret = libusb_get_configuration((*dev)->usb_device,
+ ¤t_configuration);
+ if (ret < 0) {
+ debug(ctx, "libusb_get_configuration failed: %s\n",
+ libusb_error_name(ret));
+ goto out_libusb_close;
+ }
+
+ if (current_configuration != (*dev)->desc->configuration) {
+ /*
+ * In principle, before setting a new configuration, kernel
+ * drivers should be detached from _all_ interfaces; for
+ * example calling something like the following "invented"
+ * function _before_ setting the new configuration:
+ *
+ * libusb_detach_all_kernel_drivers((*dev)->usb_device);
+ *
+ * However, in practice, this is not necessary for most
+ * devices as they have only one configuration.
+ *
+ * When a device only has one configuration:
+ *
+ * - if there was a kernel driver bound to the device, it
+ * had already set the configuration and the call below
+ * will be skipped;
+ *
+ * - if no kernel driver was bound to the device, the call
+ * below will suceed.
+ */
+ ret = libusb_set_configuration((*dev)->usb_device,
+ (*dev)->desc->configuration);
+ if (ret < 0) {
+ debug(ctx, "libusb_set_configuration failed: %s\n",
+ libusb_error_name(ret));
+ debug(ctx, "Cannot set configuration %hhu\n",
+ (*dev)->desc->configuration);
+ goto out_libusb_close;
+ }
+ }
+
+ libusb_set_auto_detach_kernel_driver((*dev)->usb_device, 1);
+
+ ret = libusb_claim_interface((*dev)->usb_device,
+ (*dev)->desc->interface_number);
+ if (ret < 0) {
+ debug(ctx, "libusb_claim_interface failed: %s\n",
+ libusb_error_name(ret));
+ debug(ctx, "Cannot claim interface %hhu\n",
+ (*dev)->desc->interface_number);
+ goto out_libusb_close;
+ }
+
+ /* Checking that the configuration has not changed, as suggested in
+ * http://libusb.sourceforge.net/api-1.0/caveats.html
+ */
+ current_configuration = -1;
+ ret = libusb_get_configuration((*dev)->usb_device,
+ ¤t_configuration);
+ if (ret < 0) {
+ debug(ctx, "libusb_get_configuration after claim failed: %s\n",
+ libusb_error_name(ret));
+ goto out_libusb_release_interface;
+ }
+
+ if (current_configuration != (*dev)->desc->configuration) {
+ debug(ctx, "libusb configuration changed (expected: %hhu, current: %d)\n",
+ (*dev)->desc->configuration, current_configuration);
+ ret = -EINVAL;
+ goto out_libusb_release_interface;
+ }
+out:
+ return ret;
+
+out_libusb_release_interface:
+ libusb_release_interface((*dev)->usb_device,
+ (*dev)->desc->interface_number);
+out_libusb_close:
+ libusb_close((*dev)->usb_device);
+ (*dev)->usb_device = NULL;
+ return ret;
+}
+
typedef enum {
SCAN_OP_BUILD_DEVLIST,
SCAN_OP_OPEN_DEVICE,
* This is where the central logic of multi-device support is.
*
* When 'op' == SCAN_OP_BUILD_DEVLIST the parameters 'open_device_index' and
- * 'dev' are ignored; the function returns 0 on success and a negative value
+ * 'dev' are ignored; the function returns 0 on success or a negative value
* on error.
*
* When 'op' == SCAN_OP_OPEN_DEVICE the function opens the supported USB
* device with index 'open_device_index' and returns the correspondent
- * am7xxx_device in the 'dev' parameter; the function returns 0 on success,
- * 1 if the device was already open and a negative value on error.
+ * am7xxx_device in the 'dev' parameter; the function returns the value from
+ * open_device(), which is 0 on success, 1 if the device was already open or
+ * a negative value on error.
*
* NOTES:
* if scan_devices() fails when called with 'op' == SCAN_OP_BUILD_DEVLIST,
unsigned int open_device_index, am7xxx_device **dev)
{
ssize_t num_devices;
- libusb_device** list;
+ libusb_device **list;
unsigned int current_index;
int i;
int ret;
} else if (op == SCAN_OP_OPEN_DEVICE &&
current_index == open_device_index) {
- *dev = find_device(ctx, open_device_index);
- if (*dev == NULL) {
- ret = -ENODEV;
- goto out;
- }
-
- /* the usb device has already been opened */
- if ((*dev)->usb_device) {
- debug(ctx, "(*dev)->usb_device already set\n");
- ret = 1;
- goto out;
- }
-
- ret = libusb_open(list[i], &((*dev)->usb_device));
- if (ret < 0) {
- debug(ctx, "libusb_open failed\n");
- goto out;
- }
-
- /* XXX, the device is now open, if any
- * of the calls below fail we need to
- * close it again before bailing out.
- */
-
- ret = libusb_set_configuration((*dev)->usb_device,
- (*dev)->desc->configuration);
- if (ret < 0) {
- debug(ctx, "libusb_set_configuration failed\n");
- debug(ctx, "Cannot set configuration %hhu\n",
- (*dev)->desc->configuration);
- goto out_libusb_close;
- }
-
- ret = libusb_claim_interface((*dev)->usb_device,
- (*dev)->desc->interface_number);
- if (ret < 0) {
- debug(ctx, "libusb_claim_interface failed\n");
- debug(ctx, "Cannot claim interface %hhu\n",
- (*dev)->desc->interface_number);
-out_libusb_close:
- libusb_close((*dev)->usb_device);
- (*dev)->usb_device = NULL;
- goto out;
- }
+ ret = open_device(ctx,
+ open_device_index,
+ list[i],
+ dev);
+ if (ret < 0)
+ debug(ctx, "open_device failed\n");
+ /* exit the loop unconditionally after
+ * attempting to open the device
+ * requested by the user */
goto out;
}
current_index++;
}
}
- /* if we made it up to here we didn't find any device to open */
+ /* if we made it up to here when op == SCAN_OP_OPEN_DEVICE,
+ * no devices to open had been found. */
if (op == SCAN_OP_OPEN_DEVICE) {
error(ctx, "Cannot find any device to open\n");
ret = -ENODEV;
return ret;
}
+/* Device specific operations */
+
+static int default_set_power_mode(am7xxx_device *dev, am7xxx_power_mode power)
+{
+ int ret;
+ struct am7xxx_header h = {
+ .packet_type = AM7XXX_PACKET_TYPE_POWER,
+ .direction = AM7XXX_DIRECTION_OUT,
+ .header_data_len = sizeof(struct am7xxx_power_header),
+ .unknown2 = 0x3e,
+ .unknown3 = 0x10,
+ };
+
+ switch(power) {
+ case AM7XXX_POWER_OFF:
+ h.header_data.power.bit2 = 0;
+ h.header_data.power.bit1 = 0;
+ h.header_data.power.bit0 = 0;
+ break;
+
+ case AM7XXX_POWER_LOW:
+ h.header_data.power.bit2 = 0;
+ h.header_data.power.bit1 = 0;
+ h.header_data.power.bit0 = 1;
+ break;
+
+ case AM7XXX_POWER_MIDDLE:
+ h.header_data.power.bit2 = 0;
+ h.header_data.power.bit1 = 1;
+ h.header_data.power.bit0 = 0;
+ break;
+
+ case AM7XXX_POWER_HIGH:
+ h.header_data.power.bit2 = 0;
+ h.header_data.power.bit1 = 1;
+ h.header_data.power.bit0 = 1;
+ break;
+
+ case AM7XXX_POWER_TURBO:
+ h.header_data.power.bit2 = 1;
+ h.header_data.power.bit1 = 0;
+ h.header_data.power.bit0 = 0;
+ break;
+
+ default:
+ error(dev->ctx, "Unsupported power mode.\n");
+ return -EINVAL;
+ };
+
+ ret = send_header(dev, &h);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int picopix_set_power_mode(am7xxx_device *dev, am7xxx_power_mode power)
+{
+ switch(power) {
+ case AM7XXX_POWER_LOW:
+ return send_command(dev, AM7XXX_PACKET_TYPE_PICOPIX_POWER_LOW);
+
+ case AM7XXX_POWER_MIDDLE:
+ return send_command(dev, AM7XXX_PACKET_TYPE_PICOPIX_POWER_MEDIUM);
+
+ case AM7XXX_POWER_HIGH:
+ return send_command(dev, AM7XXX_PACKET_TYPE_PICOPIX_POWER_HIGH);
+
+ case AM7XXX_POWER_OFF:
+ case AM7XXX_POWER_TURBO:
+ default:
+ error(dev->ctx, "Unsupported power mode.\n");
+ return -EINVAL;
+ };
+}
+
+static int default_set_zoom_mode(am7xxx_device *dev, am7xxx_zoom_mode zoom)
+{
+ int ret;
+ struct am7xxx_header h = {
+ .packet_type = AM7XXX_PACKET_TYPE_ZOOM,
+ .direction = AM7XXX_DIRECTION_OUT,
+ .header_data_len = sizeof(struct am7xxx_zoom_header),
+ .unknown2 = 0x3e,
+ .unknown3 = 0x10,
+ };
+
+ switch(zoom) {
+ case AM7XXX_ZOOM_ORIGINAL:
+ h.header_data.zoom.bit1 = 0;
+ h.header_data.zoom.bit0 = 0;
+ break;
+
+ case AM7XXX_ZOOM_H:
+ h.header_data.zoom.bit1 = 0;
+ h.header_data.zoom.bit0 = 1;
+ break;
+
+ case AM7XXX_ZOOM_H_V:
+ h.header_data.zoom.bit1 = 1;
+ h.header_data.zoom.bit0 = 0;
+ break;
+
+ case AM7XXX_ZOOM_TEST:
+ h.header_data.zoom.bit1 = 1;
+ h.header_data.zoom.bit0 = 1;
+ break;
+
+ case AM7XXX_ZOOM_TELE:
+ default:
+ error(dev->ctx, "Unsupported zoom mode.\n");
+ return -EINVAL;
+ };
+
+ ret = send_header(dev, &h);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int picopix_set_zoom_mode(am7xxx_device *dev, am7xxx_zoom_mode zoom)
+{
+ int ret;
+ am7xxx_packet_type packet_type;
+
+ switch(zoom) {
+ case AM7XXX_ZOOM_ORIGINAL:
+ packet_type = AM7XXX_PACKET_TYPE_PICOPIX_DISABLE_TI;
+ break;
+
+ case AM7XXX_ZOOM_TELE:
+ packet_type = AM7XXX_PACKET_TYPE_PICOPIX_ENABLE_TI;
+ break;
+
+ case AM7XXX_ZOOM_H:
+ case AM7XXX_ZOOM_H_V:
+ case AM7XXX_ZOOM_TEST:
+ default:
+ error(dev->ctx, "Unsupported zoom mode.\n");
+ return -EINVAL;
+ };
+
+ ret = send_command(dev, packet_type);
+ if (ret < 0)
+ return ret;
+
+ /* The Windows drivers wait for 100ms and send the same command again,
+ * probably to overcome a firmware deficiency */
+ ret = msleep(100);
+ if (ret < 0)
+ return ret;
+
+ return send_command(dev, packet_type);
+}
+
/* Public API */
AM7XXX_PUBLIC int am7xxx_init(am7xxx_context **ctx)
{
- int ret = 0;
+ int ret;
*ctx = malloc(sizeof(**ctx));
if (*ctx == NULL) {
fatal("cannot allocate the context (%s)\n", strerror(errno));
- ret = -ENOMEM;
- goto out;
+ return -ENOMEM;
}
memset(*ctx, 0, sizeof(**ctx));
(*ctx)->log_level = AM7XXX_LOG_TRACE;
ret = libusb_init(&((*ctx)->usb_context));
- if (ret < 0)
+ if (ret < 0) {
+ error(*ctx, "libusb_init failed: %s\n", libusb_error_name(ret));
goto out_free_context;
+ }
libusb_set_debug((*ctx)->usb_context, LIBUSB_LOG_LEVEL_INFO);
* is the first one to be sent to the device in order for it to
* successfully return the correct device information.
*
- * So, if there is not a cached version of it (from a previous open),
- * we ask for device info at open time,
+ * NOTE: am7xxx_get_device_info() will fetch the actual device info
+ * from the device only the very first time it's called for a given
+ * device, otherwise, it'll return a cached version of the device info
+ * (from a previous call to am7xxx_open_device(), for instance).
*/
- if ((*dev)->device_info == NULL) {
- ret = am7xxx_get_device_info(*dev, NULL);
- if (ret < 0)
- error(ctx, "cannot get device info\n");
- }
+ ret = am7xxx_get_device_info(*dev, NULL);
+ if (ret < 0)
+ error(ctx, "cannot get device info\n");
out:
return ret;
am7xxx_device_info *device_info)
{
int ret;
- struct am7xxx_header h = {
- .packet_type = AM7XXX_PACKET_TYPE_DEVINFO,
- .direction = AM7XXX_DIRECTION_OUT,
- .header_data_len = 0x00,
- .unknown2 = 0x3e,
- .unknown3 = 0x10,
- .header_data = {
- .devinfo = {
- .native_width = 0,
- .native_height = 0,
- .unknown0 = 0,
- .unknown1 = 0,
- },
- },
- };
+ struct am7xxx_header h;
- if (dev->device_info) {
- memcpy(device_info, dev->device_info, sizeof(*device_info));
- return 0;
- }
+ /* if there is a cached copy of the device info, just return that */
+ if (dev->device_info)
+ goto return_value;
- ret = send_header(dev, &h);
+ ret = send_command(dev, AM7XXX_PACKET_TYPE_DEVINFO);
if (ret < 0)
return ret;
+ memset(&h, 0, sizeof(h));
ret = read_header(dev, &h);
if (ret < 0)
return ret;
if (h.packet_type != AM7XXX_PACKET_TYPE_DEVINFO) {
error(dev->ctx, "expected packet type: %d, got %d instead!\n",
AM7XXX_PACKET_TYPE_DEVINFO, h.packet_type);
- errno = ENOTSUP;
- return -ENOTSUP;
+ errno = EINVAL;
+ return -EINVAL;
}
dev->device_info = malloc(sizeof(*dev->device_info));
dev->device_info->unknown1 = h.header_data.devinfo.unknown1;
#endif
+return_value:
+ if (device_info)
+ memcpy(device_info, dev->device_info, sizeof(*device_info));
return 0;
}
unsigned int *scaled_width,
unsigned int *scaled_height)
{
-
am7xxx_device_info device_info;
float width_ratio;
float height_ratio;
AM7XXX_PUBLIC int am7xxx_set_power_mode(am7xxx_device *dev, am7xxx_power_mode power)
{
- int ret;
- struct am7xxx_header h = {
- .packet_type = AM7XXX_PACKET_TYPE_POWER,
- .direction = AM7XXX_DIRECTION_OUT,
- .header_data_len = sizeof(struct am7xxx_power_header),
- .unknown2 = 0x3e,
- .unknown3 = 0x10,
- };
-
- if (dev->desc->quirks & AM7XXX_QUIRK_NO_POWER_MODE) {
- debug(dev->ctx,
- "setting power mode is unsupported on this device\n");
+ if (dev->desc->ops.set_power_mode == NULL) {
+ warning(dev->ctx,
+ "setting power mode is unsupported on this device\n");
return 0;
}
- switch(power) {
- case AM7XXX_POWER_OFF:
- h.header_data.power.bit2 = 0;
- h.header_data.power.bit1 = 0;
- h.header_data.power.bit0 = 0;
- break;
-
- case AM7XXX_POWER_LOW:
- h.header_data.power.bit2 = 0;
- h.header_data.power.bit1 = 0;
- h.header_data.power.bit0 = 1;
- break;
-
- case AM7XXX_POWER_MIDDLE:
- h.header_data.power.bit2 = 0;
- h.header_data.power.bit1 = 1;
- h.header_data.power.bit0 = 0;
- break;
-
- case AM7XXX_POWER_HIGH:
- h.header_data.power.bit2 = 0;
- h.header_data.power.bit1 = 1;
- h.header_data.power.bit0 = 1;
- break;
-
- case AM7XXX_POWER_TURBO:
- h.header_data.power.bit2 = 1;
- h.header_data.power.bit1 = 0;
- h.header_data.power.bit0 = 0;
- break;
-
- default:
- error(dev->ctx, "Unsupported power mode.\n");
- return -EINVAL;
- };
-
- ret = send_header(dev, &h);
- if (ret < 0)
- return ret;
-
- return 0;
+ return dev->desc->ops.set_power_mode(dev, power);
}
AM7XXX_PUBLIC int am7xxx_set_zoom_mode(am7xxx_device *dev, am7xxx_zoom_mode zoom)
{
- int ret;
- struct am7xxx_header h = {
- .packet_type = AM7XXX_PACKET_TYPE_ZOOM,
- .direction = AM7XXX_DIRECTION_OUT,
- .header_data_len = sizeof(struct am7xxx_zoom_header),
- .unknown2 = 0x3e,
- .unknown3 = 0x10,
- };
-
- if (dev->desc->quirks & AM7XXX_QUIRK_NO_ZOOM_MODE) {
- debug(dev->ctx,
- "setting zoom mode is unsupported on this device\n");
+ if (dev->desc->ops.set_zoom_mode == NULL) {
+ warning(dev->ctx,
+ "setting zoom mode is unsupported on this device\n");
return 0;
}
- switch(zoom) {
- case AM7XXX_ZOOM_ORIGINAL:
- h.header_data.zoom.bit1 = 0;
- h.header_data.zoom.bit0 = 0;
- break;
-
- case AM7XXX_ZOOM_H:
- h.header_data.zoom.bit1 = 0;
- h.header_data.zoom.bit0 = 1;
- break;
-
- case AM7XXX_ZOOM_H_V:
- h.header_data.zoom.bit1 = 1;
- h.header_data.zoom.bit0 = 0;
- break;
-
- case AM7XXX_ZOOM_TEST:
- h.header_data.zoom.bit1 = 1;
- h.header_data.zoom.bit0 = 1;
- break;
-
- default:
- error(dev->ctx, "Unsupported zoom mode.\n");
- return -EINVAL;
- };
-
- ret = send_header(dev, &h);
- if (ret < 0)
- return ret;
-
- return 0;
+ return dev->desc->ops.set_zoom_mode(dev, zoom);
}
projects / libam7xxx.git / blobdiff