diff options
Diffstat (limited to 'commands/devinfo.c')
| -rw-r--r-- | commands/devinfo.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/commands/devinfo.c b/commands/devinfo.c new file mode 100644 index 0000000000..806e45c9ba --- /dev/null +++ b/commands/devinfo.c @@ -0,0 +1,158 @@ +/* + * Copyright (C) 2013 Sascha Hauer, Pengutronix + * + * 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 the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <command.h> +#include <common.h> +#include <complete.h> +#include <driver.h> + +static int do_devinfo_subtree(struct device_d *dev, int depth) +{ + struct device_d *child; + struct cdev *cdev; + int i; + + for (i = 0; i < depth; i++) + printf(" "); + + printf("`---- %s", dev_name(dev)); + if (!list_empty(&dev->cdevs)) { + printf("\n"); + list_for_each_entry(cdev, &dev->cdevs, devices_list) { + for (i = 0; i < depth + 1; i++) + printf(" "); + printf("`---- 0x%08llx-0x%08llx: /dev/%s\n", + cdev->offset, + cdev->offset + cdev->size - 1, + cdev->name); + } + } else { + printf("\n"); + } + + if (!list_empty(&dev->children)) { + device_for_each_child(dev, child) { + do_devinfo_subtree(child, depth + 1); + } + } + + return 0; +} + +static int do_devinfo(int argc, char *argv[]) +{ + struct device_d *dev; + struct driver_d *drv; + struct param_d *param; + int i; + struct resource *res; + + if (argc == 1) { + printf("devices:\n"); + + for_each_device(dev) { + if (!dev->parent) + do_devinfo_subtree(dev, 0); + } + + printf("\ndrivers:\n"); + for_each_driver(drv) + printf("%s\n",drv->name); + } else { + dev = get_device_by_name(argv[1]); + + if (!dev) { + printf("no such device: %s\n",argv[1]); + return -1; + } + + printf("resources:\n"); + for (i = 0; i < dev->num_resources; i++) { + res = &dev->resource[i]; + printf("num : %d\n", i); + if (res->name) + printf("name : %s\n", res->name); + printf("start : " PRINTF_CONVERSION_RESOURCE "\nsize : " + PRINTF_CONVERSION_RESOURCE "\n", + res->start, resource_size(res)); + } + + printf("driver: %s\n", dev->driver ? + dev->driver->name : "none"); + + printf("bus: %s\n\n", dev->bus ? + dev->bus->name : "none"); + + if (dev->info) + dev->info(dev); + + printf("%s\n", list_empty(&dev->parameters) ? + "no parameters available" : "Parameters:"); + + list_for_each_entry(param, &dev->parameters, list) { + printf("%16s = %s", param->name, dev_get_param(dev, param->name)); + if (param->info) + param->info(param); + printf("\n"); + } +#ifdef CONFIG_OFDEVICE + if (dev->device_node) { + printf("\ndevice node: %s\n", dev->device_node->full_name); + of_print_nodes(dev->device_node, 0); + } +#endif + } + + return 0; +} + +BAREBOX_CMD_HELP_START(devinfo) +BAREBOX_CMD_HELP_USAGE("devinfo [DEVICE]\n") +BAREBOX_CMD_HELP_SHORT("Output device information.\n") +BAREBOX_CMD_HELP_END + +/** + * @page devinfo_command + +If called without arguments, devinfo shows a summary of the known +devices and drivers. + +If called with a device path being the argument, devinfo shows more +default information about this device and its parameters. + +Example from an MPC5200 based system: + +@verbatim + barebox:/ devinfo /dev/eth0 + base : 0x1002b000 + size : 0x00000000 + driver: fec_mpc5xxx + + no info available for eth0 + Parameters: + ipaddr = 192.168.23.197 + ethaddr = 80:81:82:83:84:86 + gateway = 192.168.23.1 + netmask = 255.255.255.0 + serverip = 192.168.23.2 +@endverbatim + */ + +BAREBOX_CMD_START(devinfo) + .cmd = do_devinfo, + .usage = "Show information about devices and drivers.", + BAREBOX_CMD_HELP(cmd_devinfo_help) + BAREBOX_CMD_COMPLETE(device_complete) +BAREBOX_CMD_END |