X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=hwplugin.c;h=b924f0d65c3547871634fb0d61c3bf7ec19908f3;hb=69040b7c8ff82aef2ad712b7881492d0fa4c86a8;hp=33ff79d92779bbefa768541eb0f70b0ca533104f;hpb=8722c31e26ecebfc75035a566d4d72d07761ef14;p=libsigrok.git diff --git a/hwplugin.c b/hwplugin.c index 33ff79d9..b924f0d6 100644 --- a/hwplugin.c +++ b/hwplugin.c @@ -1,7 +1,7 @@ /* * This file is part of the sigrok project. * - * Copyright (C) 2010 Bert Vermeulen + * Copyright (C) 2010-2012 Bert Vermeulen * * 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 @@ -17,59 +17,58 @@ * along with this program. If not, see . */ -#include "config.h" #include #include #include #include #include #include -#include -#include +#include "sigrok.h" +#include "sigrok-internal.h" /* The list of loaded plugins lives here. */ -GSList *plugins; +static GSList *plugins; /* * This enumerates which plugin capabilities correspond to user-settable * options. */ /* TODO: This shouldn't be a global. */ -struct sr_hwcap_option sr_hwcap_options[] = { +SR_API struct sr_hwcap_option sr_hwcap_options[] = { {SR_HWCAP_SAMPLERATE, SR_T_UINT64, "Sample rate", "samplerate"}, {SR_HWCAP_CAPTURE_RATIO, SR_T_UINT64, "Pre-trigger capture ratio", "captureratio"}, {SR_HWCAP_PATTERN_MODE, SR_T_CHAR, "Pattern generator mode", "patternmode"}, + {SR_HWCAP_RLE, SR_T_BOOL, "Run Length Encoding", "rle"}, {0, 0, NULL, NULL}, }; #ifdef HAVE_LA_DEMO -extern struct sr_device_plugin demo_plugin_info; +extern struct sr_dev_plugin demo_plugin_info; #endif #ifdef HAVE_LA_SALEAE_LOGIC -extern struct sr_device_plugin saleae_logic_plugin_info; +extern struct sr_dev_plugin saleae_logic_plugin_info; #endif #ifdef HAVE_LA_OLS -extern struct sr_device_plugin ols_plugin_info; +extern struct sr_dev_plugin ols_plugin_info; #endif #ifdef HAVE_LA_ZEROPLUS_LOGIC_CUBE -extern struct sr_device_plugin zeroplus_logic_cube_plugin_info; +extern struct sr_dev_plugin zeroplus_logic_cube_plugin_info; #endif #ifdef HAVE_LA_ASIX_SIGMA -extern struct sr_device_plugin asix_sigma_plugin_info; +extern struct sr_dev_plugin asix_sigma_plugin_info; #endif #ifdef HAVE_LA_CHRONOVU_LA8 -extern struct device_plugin chronovu_la8_plugin_info; +extern SR_PRIV struct dev_plugin chronovu_la8_plugin_info; #endif #ifdef HAVE_LA_LINK_MSO19 -extern struct sr_device_plugin link_mso19_plugin_info; +extern struct sr_dev_plugin link_mso19_plugin_info; #endif #ifdef HAVE_LA_ALSA -extern struct sr_device_plugin alsa_plugin_info; +extern struct sr_dev_plugin alsa_plugin_info; #endif - /* TODO: No linked list needed, this can be a simple array. */ -int load_hwplugins(void) +SR_PRIV int sr_hw_load_all(void) { #ifdef HAVE_LA_DEMO plugins = g_slist_append(plugins, (gpointer *)&demo_plugin_info); @@ -98,32 +97,65 @@ int load_hwplugins(void) plugins = g_slist_append(plugins, (gpointer *)&alsa_plugin_info); #endif - return SR_OK; } -GSList *sr_list_hwplugins(void) +/** + * Return the list of loaded hardware plugins. + * + * The list of plugins is initialized from sr_init(), and can only be reset + * by calling sr_exit(). + * + * @return A GSList of pointers to loaded plugins. + */ +SR_API GSList *sr_hw_list(void) { return plugins; } -int sr_init_hwplugins(struct sr_device_plugin *plugin) +/** + * Initialize a hardware plugin. + * + * The specified plugin is initialized, and all devices discovered by the + * plugin are instantiated. + * + * @param plugin The plugin to initialize. + * + * @return The number of devices found and instantiated by the plugin. + */ +SR_API int sr_hw_init(struct sr_dev_plugin *plugin) { - int num_devices, num_probes, i; - - g_message("initializing %s plugin", plugin->name); - num_devices = plugin->init(NULL); - for (i = 0; i < num_devices; i++) { - num_probes = (int)plugin->get_device_info(i, SR_DI_NUM_PROBES); - sr_device_new(plugin, i, num_probes); + int num_devs, num_probes, i, j; + int num_initialized_devs = 0; + struct sr_dev *dev; + char **probe_names; + + sr_dbg("initializing %s plugin", plugin->name); + num_devs = plugin->init(NULL); + for (i = 0; i < num_devs; i++) { + num_probes = GPOINTER_TO_INT( + plugin->dev_info_get(i, SR_DI_NUM_PROBES)); + probe_names = (char **)plugin->dev_info_get(i, + SR_DI_PROBE_NAMES); + + if (!probe_names) { + sr_warn("hwplugin: %s: plugin %s does not return a " + "list of probe names", __func__, plugin->name); + continue; + } + + dev = sr_dev_new(plugin, i); + for (j = 0; j < num_probes; j++) + sr_dev_probe_add(dev, probe_names[j]); + num_initialized_devs++; } - return num_devices; + return num_initialized_devs; } -void sr_cleanup_hwplugins(void) +SR_PRIV void sr_hw_cleanup_all(void) { - struct sr_device_plugin *plugin; + struct sr_dev_plugin *plugin; GSList *l; for (l = plugins; l; l = l->next) { @@ -131,80 +163,64 @@ void sr_cleanup_hwplugins(void) if (plugin->cleanup) plugin->cleanup(); } - } -struct sr_device_instance *sr_device_instance_new(int index, int status, +SR_PRIV struct sr_dev_inst *sr_dev_inst_new(int index, int status, const char *vendor, const char *model, const char *version) { - struct sr_device_instance *sdi; + struct sr_dev_inst *sdi; - if (!(sdi = g_malloc(sizeof(struct sr_device_instance)))) + if (!(sdi = g_try_malloc(sizeof(struct sr_dev_inst)))) { + sr_err("hwplugin: %s: sdi malloc failed", __func__); return NULL; + } sdi->index = index; sdi->status = status; - sdi->instance_type = -1; + sdi->inst_type = -1; sdi->vendor = vendor ? g_strdup(vendor) : NULL; sdi->model = model ? g_strdup(model) : NULL; sdi->version = version ? g_strdup(version) : NULL; sdi->priv = NULL; - sdi->usb = NULL; return sdi; } -struct sr_device_instance *sr_get_device_instance(GSList *device_instances, - int device_index) +SR_PRIV struct sr_dev_inst *sr_dev_inst_get(GSList *dev_insts, int dev_index) { - struct sr_device_instance *sdi; + struct sr_dev_inst *sdi; GSList *l; - for (l = device_instances; l; l = l->next) { - sdi = (struct sr_device_instance *)(l->data); - if (sdi->index == device_index) + for (l = dev_insts; l; l = l->next) { + sdi = (struct sr_dev_inst *)(l->data); + if (sdi->index == dev_index) return sdi; } - sr_warn("could not find device index %d instance", device_index); + sr_warn("could not find device index %d instance", dev_index); return NULL; } -void sr_device_instance_free(struct sr_device_instance *sdi) +SR_PRIV void sr_dev_inst_free(struct sr_dev_inst *sdi) { - switch (sdi->instance_type) { -#ifdef HAVE_LIBUSB_1_0 - case SR_USB_INSTANCE: - sr_usb_device_instance_free(sdi->usb); - break; -#endif - case SR_SERIAL_INSTANCE: - sr_serial_device_instance_free(sdi->serial); - break; - default: - /* No specific type, nothing extra to free. */ - break; - } - - if (sdi->priv) - g_free(sdi->priv); - + g_free(sdi->priv); g_free(sdi->vendor); g_free(sdi->model); g_free(sdi->version); g_free(sdi); - } #ifdef HAVE_LIBUSB_1_0 -struct sr_usb_device_instance *sr_usb_device_instance_new(uint8_t bus, +SR_PRIV struct sr_usb_dev_inst *sr_usb_dev_inst_new(uint8_t bus, uint8_t address, struct libusb_device_handle *hdl) { - struct sr_usb_device_instance *udi; + struct sr_usb_dev_inst *udi; - if (!(udi = malloc(sizeof(struct sr_usb_device_instance)))) + if (!(udi = g_try_malloc(sizeof(struct sr_usb_dev_inst)))) { + sr_err("hwplugin: %s: udi malloc failed", __func__); return NULL; + } udi->bus = bus; udi->address = address; @@ -213,53 +229,72 @@ struct sr_usb_device_instance *sr_usb_device_instance_new(uint8_t bus, return udi; } -void sr_usb_device_instance_free(struct sr_usb_device_instance *usb) +SR_PRIV void sr_usb_dev_inst_free(struct sr_usb_dev_inst *usb) { /* Avoid compiler warnings. */ - usb = usb; + (void)usb; /* Nothing to do for this device instance type. */ } #endif -struct sr_serial_device_instance *sr_serial_device_instance_new( - const char *port, int fd) +SR_PRIV struct sr_serial_dev_inst *sr_serial_dev_inst_new(const char *port, + int fd) { - struct sr_serial_device_instance *serial; + struct sr_serial_dev_inst *serial; - if (!(serial = malloc(sizeof(struct sr_serial_device_instance)))) + if (!(serial = g_try_malloc(sizeof(struct sr_serial_dev_inst)))) { + sr_err("hwplugin: %s: serial malloc failed", __func__); return NULL; + } - serial->port = strdup(port); + serial->port = g_strdup(port); serial->fd = fd; return serial; } -void sr_serial_device_instance_free(struct sr_serial_device_instance *serial) +SR_PRIV void sr_serial_dev_inst_free(struct sr_serial_dev_inst *serial) { - free(serial->port); + g_free(serial->port); } -int sr_find_hwcap(int *capabilities, int hwcap) +/** + * Find out if a hardware plugin has a specific capability. + * + * @param plugin The hardware plugin in which to search for the capability. + * @param hwcap The capability to find in the list. + * + * @return TRUE if found, FALSE otherwise. + */ +SR_API gboolean sr_hw_has_hwcap(struct sr_dev_plugin *plugin, int hwcap) { - int i; + int *hwcaps, i; - for (i = 0; capabilities[i]; i++) { - if (capabilities[i] == hwcap) + hwcaps = plugin->hwcap_get_all(); + for (i = 0; hwcaps[i]; i++) { + if (hwcaps[i] == hwcap) return TRUE; } return FALSE; } -struct sr_hwcap_option *sr_find_hwcap_option(int hwcap) +/** + * Get a hardware plugin capability option. + * + * @param hwcap The capability to get. + * + * @return A pointer to a struct with information about the parameter, or NULL + * if the capability was not found. + */ +SR_API struct sr_hwcap_option *sr_hw_hwcap_get(int hwcap) { int i; - for (i = 0; sr_hwcap_options[i].capability; i++) { - if (sr_hwcap_options[i].capability == hwcap) + for (i = 0; sr_hwcap_options[i].hwcap; i++) { + if (sr_hwcap_options[i].hwcap == hwcap) return &sr_hwcap_options[i]; } @@ -268,12 +303,12 @@ struct sr_hwcap_option *sr_find_hwcap_option(int hwcap) /* unnecessary level of indirection follows. */ -void sr_source_remove(int fd) +SR_PRIV void sr_source_remove(int fd) { sr_session_source_remove(fd); } -void sr_source_add(int fd, int events, int timeout, +SR_PRIV void sr_source_add(int fd, int events, int timeout, sr_receive_data_callback rcv_cb, void *user_data) { sr_session_source_add(fd, events, timeout, rcv_cb, user_data);