/* ----------------------------------------------------------------------- *
 *
 *   Copyright 2009 Erwan Velu - All Rights Reserved
 *
 *   Permission is hereby granted, free of charge, to any person
 *   obtaining a copy of this software and associated documentation
 *   files (the "Software"), to deal in the Software without
 *   restriction, including without limitation the rights to use,
 *   copy, modify, merge, publish, distribute, sublicense, and/or
 *   sell copies of the Software, and to permit persons to whom
 *   the Software is furnished to do so, subject to the following
 *   conditions:
 *
 *   The above copyright notice and this permission notice shall
 *   be included in all copies or substantial portions of the Software.
 *
 *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 *   OTHER DEALINGS IN THE SOFTWARE.
 *
 * -----------------------------------------------------------------------
 */

#include <stdlib.h>
#include <string.h>
#include <errno.h>

#include "hdt-cli.h"
#include "hdt-common.h"

void main_show_pci(int argc __unused, char **argv __unused,
		   struct s_hardware *hardware)
{
    reset_more_printf();
    more_printf("PCI\n");
    more_printf(" NB Devices   : %d\n", hardware->nb_pci_devices);
}

static void show_pci_device(int argc, char **argv, struct s_hardware *hardware)
{
    int i = 0;
    struct pci_device *pci_device = NULL, *temp_pci_device;
    int pcidev = -1;
    bool nopciids = false;
    bool nomodulespcimap = false;
    bool nomodulesalias = false;
    bool nomodulesfiles = false;
    char kernel_modules[LINUX_KERNEL_MODULE_SIZE *
			MAX_KERNEL_MODULES_PER_PCI_DEVICE];
    int bus = 0, slot = 0, func = 0;

    reset_more_printf();
    /* Sanitize arguments */
    if (argc <= 0) {
	more_printf("show device <number>\n");
	return;
    } else
	pcidev = strtol(argv[0], (char **)NULL, 10);

    if (errno == ERANGE) {
	more_printf("This PCI device number is incorrect\n");
	return;
    }
    if ((pcidev > hardware->nb_pci_devices) || (pcidev <= 0)) {
	more_printf("PCI device %d doesn't exist\n", pcidev);
	return;
    }
    if (hardware->pci_ids_return_code == -ENOPCIIDS) {
	nopciids = true;
    }
    if (hardware->modules_pcimap_return_code == -ENOMODULESPCIMAP) {
	nomodulespcimap = true;
    }
    if (hardware->modules_alias_return_code == -ENOMODULESALIAS) {
	nomodulesalias = true;
    }
    nomodulesfiles = nomodulespcimap && nomodulesalias;
    for_each_pci_func(temp_pci_device, hardware->pci_domain) {
	i++;
	if (i == pcidev) {
	    bus = __pci_bus;
	    slot = __pci_slot;
	    func = __pci_func;
	    pci_device = temp_pci_device;
	}
    }

    if (pci_device == NULL) {
	more_printf("We were enabled to find PCI device %d\n", pcidev);
	return;
    }

    memset(kernel_modules, 0, sizeof kernel_modules);
    for (int kmod = 0;
	 kmod < pci_device->dev_info->linux_kernel_module_count; kmod++) {
	if (kmod > 0) {
	    strncat(kernel_modules, " | ", 3);
	}
	strncat(kernel_modules,
		pci_device->dev_info->linux_kernel_module[kmod],
		LINUX_KERNEL_MODULE_SIZE - 1);
    }
    if (pci_device->dev_info->linux_kernel_module_count == 0)
	strlcpy(kernel_modules, "unknown", 7);

    more_printf("PCI Device %d\n", pcidev);

    if (nopciids == false) {
	more_printf("Vendor Name   : %s\n", pci_device->dev_info->vendor_name);
	more_printf("Product Name  : %s\n", pci_device->dev_info->product_name);
	more_printf("Class Name    : %s\n", pci_device->dev_info->class_name);
    }

    if (nomodulesfiles == false) {
	more_printf("Kernel module : %s\n", kernel_modules);
    }

    more_printf("Vendor ID     : %04x\n", pci_device->vendor);
    more_printf("Product ID    : %04x\n", pci_device->product);
    more_printf("SubVendor ID  : %04x\n", pci_device->sub_vendor);
    more_printf("SubProduct ID : %04x\n", pci_device->sub_product);
    more_printf("Class ID      : %02x.%02x.%02x\n", pci_device->class[2],
		pci_device->class[1], pci_device->class[0]);
    more_printf("Revision      : %02x\n", pci_device->revision);
    if ((pci_device->dev_info->irq > 0)
	&& (pci_device->dev_info->irq < 255))
	more_printf("IRQ           : %0d\n", pci_device->dev_info->irq);
    more_printf("Latency       : %0d\n", pci_device->dev_info->latency);
    more_printf("PCI Bus       : %02d\n", bus);
    more_printf("PCI Slot      : %02d\n", slot);
    more_printf("PCI Func      : %02d\n", func);

    if (hardware->is_pxe_valid == true) {
	if ((hardware->pxe.pci_device != NULL)
	    && (hardware->pxe.pci_device == pci_device)) {
	    more_printf("Mac Address   : %s\n", hardware->pxe.mac_addr);
	    more_printf("PXE           : Current boot device\n");
	}
    }
}

static void show_pci_devices(int argc __unused, char **argv __unused,
			     struct s_hardware *hardware)
{
    int i = 1;
    struct pci_device *pci_device;
    char kernel_modules[LINUX_KERNEL_MODULE_SIZE *
			MAX_KERNEL_MODULES_PER_PCI_DEVICE];
    bool nopciids = false;
    bool nomodulespcimap = false;
    bool nomodulesalias = false;
    bool nomodulesfile = false;
    char first_line[81];
    char second_line[81];

    reset_more_printf();
    more_printf("%d PCI devices detected\n", hardware->nb_pci_devices);

    if (hardware->pci_ids_return_code == -ENOPCIIDS) {
	nopciids = true;
    }
    if (hardware->modules_pcimap_return_code == -ENOMODULESPCIMAP) {
	nomodulespcimap = true;
    }
    if (hardware->modules_pcimap_return_code == -ENOMODULESALIAS) {
	nomodulesalias = true;
    }

    nomodulesfile = nomodulespcimap && nomodulesalias;

    /* For every detected pci device, compute its submenu */
    for_each_pci_func(pci_device, hardware->pci_domain) {
	memset(kernel_modules, 0, sizeof kernel_modules);
	for (int kmod = 0;
	     kmod < pci_device->dev_info->linux_kernel_module_count; kmod++) {
	    if (kmod > 0) {
		strncat(kernel_modules, " | ", 3);
	    }
	    strncat(kernel_modules,
		    pci_device->dev_info->linux_kernel_module[kmod],
		    LINUX_KERNEL_MODULE_SIZE - 1);
	}
	if (pci_device->dev_info->linux_kernel_module_count == 0)
	    strlcpy(kernel_modules, "unknown", 7);

	if (nopciids == false) {
	    snprintf(first_line, sizeof(first_line),
		     "%02d: %s %s \n", i,
		     pci_device->dev_info->vendor_name,
		     pci_device->dev_info->product_name);
	    if (nomodulesfile == false)
		snprintf(second_line, sizeof(second_line),
			 "    # %-25s # Kmod: %s\n",
			 pci_device->dev_info->class_name, kernel_modules);
	    else
		snprintf(second_line, sizeof(second_line),
			 "    # %-25s # ID:%04x:%04x[%04x:%04x]\n",
			 pci_device->dev_info->class_name,
			 pci_device->vendor,
			 pci_device->product,
			 pci_device->sub_vendor, pci_device->sub_product);

	    more_printf("%s", first_line);
	    more_printf("%s", second_line);
	    more_printf("\n");
	} else if (nopciids == true) {
	    if (nomodulesfile == true) {
		more_printf("%02d: %04x:%04x [%04x:%04x] \n",
			    i, pci_device->vendor,
			    pci_device->product,
			    pci_device->sub_vendor, pci_device->sub_product);
	    } else {
		more_printf
		    ("%02d: %04x:%04x [%04x:%04x] Kmod:%s\n", i,
		     pci_device->vendor, pci_device->product,
		     pci_device->sub_vendor,
		     pci_device->sub_product, kernel_modules);
	    }
	}
	i++;
    }
}

static void show_pci_irq(int argc __unused, char **argv __unused,
			 struct s_hardware *hardware)
{
    struct pci_device *pci_device;
    bool nopciids = false;

    reset_more_printf();
    more_printf("%d PCI devices detected\n", hardware->nb_pci_devices);
    more_printf("IRQ : product\n");
    more_printf("-------------\n");

    if (hardware->pci_ids_return_code == -ENOPCIIDS) {
	nopciids = true;
    }

    /* For every detected pci device, compute its submenu */
    for_each_pci_func(pci_device, hardware->pci_domain) {
	/* Only display valid IRQs */
	if ((pci_device->dev_info->irq > 0)
	    && (pci_device->dev_info->irq < 255)) {
	    if (nopciids == false) {
		more_printf("%02d  : %s %s \n",
			    pci_device->dev_info->irq,
			    pci_device->dev_info->vendor_name,
			    pci_device->dev_info->product_name);
	    } else {
		more_printf("%02d  : %04x:%04x [%04x:%04x] \n",
			    pci_device->dev_info->irq,
			    pci_device->vendor,
			    pci_device->product,
			    pci_device->sub_vendor, pci_device->sub_product);
	    }
	}
    }
}

struct cli_callback_descr list_pci_show_modules[] = {
    {
     .name = CLI_IRQ,
     .exec = show_pci_irq,
     },
    {
     .name = CLI_PCI_DEVICE,
     .exec = show_pci_device,
     },
    {
     .name = NULL,
     .exec = NULL,
     },
};

struct cli_module_descr pci_show_modules = {
    .modules = list_pci_show_modules,
    .default_callback = show_pci_devices,
};

struct cli_mode_descr pci_mode = {
    .mode = PCI_MODE,
    .name = CLI_PCI,
    .default_modules = NULL,
    .show_modules = &pci_show_modules,
    .set_modules = NULL,
};
