X-Git-Url: https://git.ao2.it/libam7xxx.git/blobdiff_plain/521c3915354a7119b67969fe9824b31710d732ca..aac4ec29aa256b54709048f07a87cc4279ce709a:/src/am7xxx.c diff --git a/src/am7xxx.c b/src/am7xxx.c index e809c55..ebc403e 100644 --- a/src/am7xxx.c +++ b/src/am7xxx.c @@ -1,6 +1,6 @@ /* am7xxx - communication with AM7xxx based USB Pico Projectors and DPFs * - * Copyright (C) 2012 Antonio Ospite + * Copyright (C) 2012-2014 Antonio Ospite * * 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 @@ -26,6 +26,7 @@ #include "am7xxx.h" #include "serialize.h" +#include "tools.h" #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) @@ -64,37 +65,80 @@ static void log_message(am7xxx_context *ctx, #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__) +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 vendor_id; uint16_t product_id; + uint8_t configuration; /* The bConfigurationValue of the device */ + uint8_t interface_number; /* The bInterfaceNumber of the device */ + struct am7xxx_ops ops; }; -static struct am7xxx_usb_device_descriptor supported_devices[] = { +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", .vendor_id = 0x1de1, .product_id = 0xc101, + .configuration = 2, + .interface_number = 0, + .ops = DEFAULT_OPS, }, { .name = "Acer C112", .vendor_id = 0x1de1, .product_id = 0x5501, + .configuration = 2, + .interface_number = 0, + .ops = DEFAULT_OPS, }, { .name ="Aiptek PocketCinema T25", .vendor_id = 0x08ca, .product_id = 0x2144, + .configuration = 2, + .interface_number = 0, + .ops = DEFAULT_OPS, }, { .name = "Philips/Sagemcom PicoPix 1020", .vendor_id = 0x21e7, .product_id = 0x000e, + .configuration = 2, + .interface_number = 0, + .ops = DEFAULT_OPS, }, { .name = "Philips/Sagemcom PicoPix 2055", .vendor_id = 0x21e7, .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", + .vendor_id = 0x21e7, + .product_id = 0x0019, + .configuration = 1, + .interface_number = 0, }, }; @@ -106,6 +150,8 @@ static struct am7xxx_usb_device_descriptor supported_devices[] = { struct _am7xxx_device { libusb_device_handle *usb_device; + struct libusb_transfer *transfer; + int transfer_completed; uint8_t buffer[AM7XXX_HEADER_WIRE_SIZE]; am7xxx_device_info *device_info; am7xxx_context *ctx; @@ -124,6 +170,11 @@ typedef enum { 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 { @@ -189,6 +240,18 @@ struct am7xxx_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) @@ -267,7 +330,8 @@ static void debug_dump_header(am7xxx_context *ctx, struct am7xxx_header *h) 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"); @@ -348,6 +412,117 @@ static int send_data(am7xxx_device *dev, uint8_t *buffer, unsigned int len) return 0; } +static void send_data_async_complete_cb(struct libusb_transfer *transfer) +{ + am7xxx_device *dev = (am7xxx_device *)(transfer->user_data); + int *completed = &(dev->transfer_completed); + int transferred = transfer->actual_length; + int ret; + + if (transferred != transfer->length) { + error(dev->ctx, "transferred: %d (expected %u)\n", + transferred, transfer->length); + } + + switch (transfer->status) { + case LIBUSB_TRANSFER_COMPLETED: + ret = 0; + break; + case LIBUSB_TRANSFER_TIMED_OUT: + ret = LIBUSB_ERROR_TIMEOUT; + break; + case LIBUSB_TRANSFER_STALL: + ret = LIBUSB_ERROR_PIPE; + break; + case LIBUSB_TRANSFER_OVERFLOW: + ret = LIBUSB_ERROR_OVERFLOW; + break; + case LIBUSB_TRANSFER_NO_DEVICE: + ret = LIBUSB_ERROR_NO_DEVICE; + break; + case LIBUSB_TRANSFER_ERROR: + case LIBUSB_TRANSFER_CANCELLED: + ret = LIBUSB_ERROR_IO; + break; + default: + error(dev->ctx, "unrecognised status code %d", transfer->status); + ret = LIBUSB_ERROR_OTHER; + } + + if (ret < 0) + error(dev->ctx, "libusb transfer failed: %s", + libusb_error_name(ret)); + + libusb_free_transfer(transfer); + transfer = NULL; + + *completed = 1; +} + +static inline void wait_for_trasfer_completed(am7xxx_device *dev) +{ + while (!dev->transfer_completed) { + int ret = libusb_handle_events_completed(dev->ctx->usb_context, + &(dev->transfer_completed)); + if (ret < 0) { + if (ret == LIBUSB_ERROR_INTERRUPTED) + continue; + error(dev->ctx, "libusb_handle_events failed: %s, cancelling transfer and retrying", + libusb_error_name(ret)); + libusb_cancel_transfer(dev->transfer); + continue; + } + } +} + +static int send_data_async(am7xxx_device *dev, uint8_t *buffer, unsigned int len) +{ + int ret; + uint8_t *transfer_buffer; + + dev->transfer = libusb_alloc_transfer(0); + if (dev->transfer == NULL) { + error(dev->ctx, "cannot allocate transfer (%s)\n", + strerror(errno)); + return -ENOMEM; + } + + /* 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. */ + transfer_buffer = malloc(len); + if (transfer_buffer == NULL) { + error(dev->ctx, "cannot allocate transfer buffer (%s)\n", + strerror(errno)); + ret = -ENOMEM; + goto err; + } + memcpy(transfer_buffer, buffer, len); + + dev->transfer->flags |= LIBUSB_TRANSFER_FREE_BUFFER; + libusb_fill_bulk_transfer(dev->transfer, dev->usb_device, 0x1, + transfer_buffer, len, + send_data_async_complete_cb, dev, 0); + + /* wait for the previous transfer to complete */ + wait_for_trasfer_completed(dev); + + trace_dump_buffer(dev->ctx, "sending -->", buffer, len); + + dev->transfer_completed = 0; + ret = libusb_submit_transfer(dev->transfer); + if (ret < 0) + goto err; + + return 0; + +err: + libusb_free_transfer(dev->transfer); + dev->transfer = NULL; + return ret; +} + static void serialize_header(struct am7xxx_header *h, uint8_t *buffer) { uint8_t **buffer_iterator = &buffer; @@ -423,6 +598,28 @@ static int send_header(am7xxx_device *dev, struct am7xxx_header *h) 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 @@ -472,6 +669,7 @@ static am7xxx_device *add_new_device(am7xxx_context *ctx, new_device->ctx = ctx; new_device->desc = desc; + new_device->transfer_completed = 1; devices_list = &(ctx->devices_list); @@ -529,7 +727,7 @@ typedef enum { static int scan_devices(am7xxx_context *ctx, scan_op op, unsigned int open_device_index, am7xxx_device **dev) { - int num_devices; + ssize_t num_devices; libusb_device** list; unsigned int current_index; int i; @@ -606,17 +804,21 @@ static int scan_devices(am7xxx_context *ctx, scan_op op, * close it again before bailing out. */ - ret = libusb_set_configuration((*dev)->usb_device, 2); + 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 2\n"); + debug(ctx, "Cannot set configuration %hhu\n", + (*dev)->desc->configuration); goto out_libusb_close; } - ret = libusb_claim_interface((*dev)->usb_device, 0); + 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 0\n"); + debug(ctx, "Cannot claim interface %hhu\n", + (*dev)->desc->interface_number); out_libusb_close: libusb_close((*dev)->usb_device); (*dev)->usb_device = NULL; @@ -644,11 +846,167 @@ out: 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) { @@ -665,7 +1023,7 @@ AM7XXX_PUBLIC int am7xxx_init(am7xxx_context **ctx) if (ret < 0) goto out_free_context; - libusb_set_debug((*ctx)->usb_context, 3); + libusb_set_debug((*ctx)->usb_context, LIBUSB_LOG_LEVEL_INFO); ret = scan_devices(*ctx, SCAN_OP_BUILD_DEVLIST , 0, NULL); if (ret < 0) { @@ -758,7 +1116,8 @@ AM7XXX_PUBLIC int am7xxx_close_device(am7xxx_device *dev) return -EINVAL; } if (dev->usb_device) { - libusb_release_interface(dev->usb_device, 0); + wait_for_trasfer_completed(dev); + libusb_release_interface(dev->usb_device, dev->desc->interface_number); libusb_close(dev->usb_device); dev->usb_device = NULL; } @@ -769,31 +1128,18 @@ AM7XXX_PUBLIC int am7xxx_get_device_info(am7xxx_device *dev, 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; } - 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; @@ -922,100 +1268,60 @@ AM7XXX_PUBLIC int am7xxx_send_image(am7xxx_device *dev, return send_data(dev, image, image_size); } -AM7XXX_PUBLIC int am7xxx_set_power_mode(am7xxx_device *dev, am7xxx_power_mode power) +AM7XXX_PUBLIC int am7xxx_send_image_async(am7xxx_device *dev, + am7xxx_image_format format, + unsigned int width, + unsigned int height, + uint8_t *image, + unsigned int image_size) { int ret; struct am7xxx_header h = { - .packet_type = AM7XXX_PACKET_TYPE_POWER, + .packet_type = AM7XXX_PACKET_TYPE_IMAGE, .direction = AM7XXX_DIRECTION_OUT, - .header_data_len = sizeof(struct am7xxx_power_header), + .header_data_len = sizeof(struct am7xxx_image_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; + .header_data = { + .image = { + .format = format, + .width = width, + .height = height, + .image_size = image_size, + }, + }, }; ret = send_header(dev, &h); if (ret < 0) return ret; - return 0; + if (image == NULL || image_size == 0) { + warning(dev->ctx, "Not sending any data, check the 'image' or 'image_size' parameters\n"); + return 0; + } + + return send_data_async(dev, image, image_size); } -AM7XXX_PUBLIC int am7xxx_set_zoom_mode(am7xxx_device *dev, am7xxx_zoom_mode zoom) +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_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; + if (dev->desc->ops.set_power_mode == NULL) { + warning(dev->ctx, + "setting power mode is unsupported on this device\n"); + return 0; + } - default: - error(dev->ctx, "Unsupported zoom mode.\n"); - return -EINVAL; - }; + return dev->desc->ops.set_power_mode(dev, power); +} - ret = send_header(dev, &h); - if (ret < 0) - return ret; +AM7XXX_PUBLIC int am7xxx_set_zoom_mode(am7xxx_device *dev, am7xxx_zoom_mode zoom) +{ + if (dev->desc->ops.set_zoom_mode == NULL) { + warning(dev->ctx, + "setting zoom mode is unsupported on this device\n"); + return 0; + } - return 0; + return dev->desc->ops.set_zoom_mode(dev, zoom); }