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#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/capability.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/netdevice.h>

#include "tpm_common.h"
#include "tpm_header.h"

static ssize_t tpm_sysfs_print_help(char *buf)
{
	int off = 0;
#ifdef CONFIG_MV_TPM_SYSFS_HELP
	off += sprintf(buf + off,
		"cat help                                          - show this help\n");
	off += sprintf(buf + off,
		"cat etherports                                    - show TPM DB ethernet port configuration\n");
	off += sprintf(buf + off, "cat rx_modules                                    - show TPM DB  rx configuration \n");
	off += sprintf(buf + off,
		"cat tx_modules                                    - show TPM DB tx modules configuration\n");
	off += sprintf(buf + off, "cat gmac_cfg                                      - show TPM DB GMAC configuration\n");
	off += sprintf(buf + off,
		"cat gmac_func                                     - show TPM DB GMAC function configuration \n");
	off += sprintf(buf + off, "cat igmp_cfg                                      - show TPM DB IGMP configuration \n");
	off += sprintf(buf + off,
		"cat misc_cfg                                      - show TPM DB Misc. configuration \n");
	off += sprintf(buf + off,
		"cat vlan_etype                                    - show TPM DB VLAN ethertypes configuration \n");
	off += sprintf(buf + off,
		"cat valid_api_section                             - show TPM DB API ranges configuration \n");
	off += sprintf(buf + off,
		"cat valid_pnc_range                               - show TPM DB PNC Ranges configuration \n");
	off += sprintf(buf + off,
		"cat init_tables                                   - show TPM DB Initialization configuration \n");
	off += sprintf(buf + off,
		"cat mtu_cfg                                       - show MTU running configuration \n");
	off += sprintf(buf + off,
		"cat tcam_hw_hits                                  - show TCAM HW entries hit table\n");
	off += sprintf(buf + off,
		"cat show_omci_channel                             - show gpon OMCI channel info\n");
	off += sprintf(buf + off,
		"cat show_oam_channel                              - show epon OAM channel info\n");
	off += sprintf(buf + off,
		"cat tcam_hw_hits_dump                             "\
		"- show TCAM HW entries hit table including per hit TCAM/SRAM data\n");
	off += sprintf(buf+off,
		"cat api_dump                                      "
		"- show TPM DB all API types (l2/l3/ipv4/ipv4mc/ipv6 api's)\n");
	off += sprintf(buf+off,
		"cat busy_apis                                      "
		"- debug info. Show TPM API's that are in an active API call. Should always be empty. \n");
	off += sprintf(buf + off,
		"cat show_mac_learn_entry_count                     "
		"- show MAC learn entry count. \n");
	off += sprintf(buf + off,
		 "cat show_fc_config                                - show FC engine configuration/statistics\n");
	off += sprintf(buf + off,
		 "echo 0 > show_fc_config                           - clear FC engine statistics\n");
	off += sprintf(buf + off,
		"echo section                 > api_section        "
		"- show TPM DB specific API Section full configuration \n");
	off += sprintf(buf + off,
		"echo valid_only st end       > pnc_shadow_range   "
		"- show TPM DB shadow PNC tables (start_entry, end_entry)\n");
	off += sprintf(buf + off,
		"echo <port>                  > tcam_hw_hits       "
		"- start recording for port (GMAC0-%d GMAC1-%d PONMAC-%d)\n", TPM_ENUM_GMAC_0, TPM_ENUM_GMAC_1, TPM_ENUM_PMAC);
#else
	printk(KERN_WARNING "%s: sysfs help is not compiled (CONFIG_MV_TPM_SYSFS_HELP)\n", __func__);
#endif
	return off;
}

static ssize_t tpm_sysfs_print_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	int off = 0;
	const char *name = attr->attr.name;

	if (!capable(CAP_NET_ADMIN))
		return -EPERM;

	if (!strcmp(name, "help"))
		off = tpm_sysfs_print_help(buf);
	else if (!strcmp(name, "etherports"))
		tpm_print_etherports();
	else if (!strcmp(name, "rx_modules"))
		tpm_print_rx_modules();
	else if (!strcmp(name, "tx_modules"))
		tpm_print_tx_modules();
	else if (!strcmp(name, "gmac_cfg"))
		tpm_print_gmac_config();
	else if (!strcmp(name, "gmac_func"))
		tpm_print_gmac_func();
	else if (!strcmp(name, "igmp_cfg"))
		tpm_print_igmp();
	else if (!strcmp(name, "misc_cfg"))
		tpm_print_misc();
	else if (!strcmp(name, "vlan_etype"))
		tpm_print_vlan_etype();
	else if (!strcmp(name, "valid_api_section"))
		tpm_print_valid_api_sections();
	else if (!strcmp(name, "valid_pnc_range"))
		tpm_print_valid_pnc_ranges();
	else if (!strcmp(name, "init_tables"))
		tpm_print_init_tables();
	else if (!strcmp(name, "mtu_cfg"))
		tpm_db_show_mtu_cfg();
	else if (!strcmp(name, "length_check_range"))
		tpm_mtu_print_len_chk_range();
	else if (!strcmp(name, "api_dump"))
		tpm_print_api_dump_all();
	else if (!strcmp(name, "pnc_dump"))
	      tpm_print_pnc();
	else if (!strcmp(name, "tcam_hw_hits"))
		return tpm_tcam_hw_hits(DONT_PRINT_PNC_ENTRY);
	else if (!strcmp(name, "tcam_hw_hits_dump"))
		return tpm_tcam_hw_hits(PRINT_PNC_ENTRY);
	else if (!strcmp(name, "age_pnc_dump"))
		return tpm_age_pnc_dump();
	else if (!strcmp(name, "age_pnc_dump_live"))
		return tpm_age_pnc_dump_live();
	else if (!strcmp(name, "age_pnc_dump_hdrs"))
		tpm_print_pnc_field_desc();
	else if (!strcmp(name, "age_dump"))
		mvPncAgingDump(0);
	else if (!strcmp(name, "age_dump_all"))
		mvPncAgingDump(1);
	else if (!strcmp(name, "mc_vlan_dump"))
		tpm_print_mc_vlan_cfg_all();
	else if (!strcmp(name, "show_omci_channel"))
		tpm_print_gpon_omci_channel();
	else if (!strcmp(name, "show_oam_channel"))
		tpm_print_epon_oam_channel();
	else if (!strcmp(name, "busy_apis"))
		tpm_print_busy_apis();
	else if (!strcmp(name, "show_mac_learn_entry_count"))
		tpm_print_mac_learn_entry_count();
	else if (!strcmp(name, "show_fc_config"))
		tpm_print_fc(1);
	else
		off = tpm_sysfs_print_help(buf);

	return off;
}

#if 0				/*Keep as placeholder*/
static ssize_t tpm_sysfs_print_1_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t len)
{
	const char *name = attr->attr.name;
	unsigned int v;
	unsigned long flags;

	if (!capable(CAP_NET_ADMIN))
		return -EPERM;

	/* Read input */
	v = 0;

	sscanf(buf, "%x", &v);

	raw_local_irq_save(flags);

	if (!strcmp(name, "place_holder"))
		XXXXX(v);
	else
		printk(KERN_ERR "%s: illegal operation <%s>\n", __func__, attr->attr.name);

	raw_local_irq_restore(flags);

	return len;
}
#endif

static ssize_t tpm_sysfs_print_2_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t len)
{
	const char *name = attr->attr.name;
	unsigned int p;
	/*unsigned long flags;*/

	if (!capable(CAP_NET_ADMIN))
		return -EPERM;

	/* Read input */
	sscanf(buf, "%d", &p);

	/*raw_local_irq_save(flags);*/

	if (!strcmp(name, "api_section"))
		tpm_print_full_api_section(p);
	else if (!strcmp(name, "tcam_hw_hits"))
		tpm_tcam_hw_record(p);
	else if (!strcmp(name, "show_fc_config"))
		tpm_print_fc(p);
	else
		printk(KERN_ERR "%s: illegal operation <%s>\n", __func__, attr->attr.name);

	/*raw_local_irq_restore(flags);*/

	return len;
}

static ssize_t tpm_sysfs_print_6_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t len)
{
	const char *name = attr->attr.name;
	unsigned int p, v1 = 0, v2 = 0, v3 = 0, v4 = 0, v5 = 0;
	/*unsigned long flags;*/

	if (!capable(CAP_NET_ADMIN))
		return -EPERM;

	/* Read input */
	sscanf(buf, "%d %d %d %d %x %x", &p, &v1, &v2, &v3, &v4, &v5);

	/*raw_local_irq_save(flags);*/

	if (!strcmp(name, "pnc_shadow_range"))
		tpm_print_pnc_shadow_range(p, v1, v2);
	else
		printk(KERN_ERR "%s: illegal operation <%s>\n", __func__, attr->attr.name);

	/*raw_local_irq_restore(flags);*/

	return len;
}

#ifdef CONFIG_MV_TPM_SYSFS_HELP
static ssize_t tpm_sysfs_mod2_help(char *buf)
{
	int off = 0;

	off += sprintf(buf + off,
		"cat help_mod2_print                                           - show this help\n");
	off += sprintf(buf + off,
		"cat show_jump_cfg                                             - show jump area configuration\n");
	off += sprintf(buf + off,
		"echo chain_type                    > show_chain_cfg           - show chain configuration\n");
	off += sprintf(buf + off,
		"     chain_type:                   "
		"[1-mh|2-mac|3-vlan|4-pppoe|5-l2_main|6-ipv4_napt|7-ipv4_mc|8-route]\n");
	off += sprintf(buf + off,
		"echo gmac_port                     > show_jump_pmt_entries    - show the pmt entries of gmac port\n");
	off += sprintf(buf + off, "     gmac_port :                   [0-2]\n");
	off += sprintf(buf + off,
		"echo gmac_port chain_type          > show_chain_pmt_entries   - show the pmt entries of gmac port\n");
	off += sprintf(buf + off, "     gmac_port :                   [0-2]\n");
	off += sprintf(buf + off,
		"     chain_type:                   "
		"[0-all|1-mh|2-mac|3-vlan|4-pppoe|5-l2_main|6-ipv4_napt|7-ipv4_mc|8-route]\n");
	off += sprintf(buf + off,
		"echo gmac_port chain_type chain_id > show_chain_db_entry      - show one chain data base entry\n");
	off += sprintf(buf + off, "     gmac_port :                   [0-2]\n");
	off += sprintf(buf + off,
		"     chain_type:                   "
		"[1-mh|2-mac|3-vlan|4-pppoe|5-l2_main|6-ipv4_napt|7-ipv4_mc|8-route]\n");
	off += sprintf(buf + off, "     chain_id  :                   chain index\n");
	off += sprintf(buf + off,
		"echo gmac_port chain_type          > show_chain_db            "
		"- show all the chain database entries of one chain type\n");
	off += sprintf(buf + off, "     gmac_port :                   [0-2]\n");
	off += sprintf(buf + off,
		"     chain_type:                   "
		"[1-mh|2-mac|3-vlan|4-pppoe|5-l2_main|6-ipv4_napt|7-ipv4_mc|8-route]\n");
	off += sprintf(buf + off,
		"echo gmac_port                     > show_all_chain           "
		"- show all the chain database entries\n");
	off += sprintf(buf + off, "     gmac_port :                   [0-2]\n");
	off += sprintf(buf + off,
		"echo api_type                      > show_section_free_size   "
		"- show specific API Section free size \n");
	off += sprintf(buf + off,
		"     api_type:                   "
		"  [0-mgmt|1-cpu_lpk|2-l2|3-l3|4-ipv4|5-ipv4_mc|6-ipv6_gen|7-ipv6_dip|8-ipv6_nh|9-ipv6_l4]\n");

	return off;
}

static ssize_t tpm_sysfs_mod2_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	int off = 0;
	const char *name = attr->attr.name;

	if (!strcmp(name, "show_jump_cfg"))
		tpm_db_mod2_show_jump_cfg_data();
	else
		off = tpm_sysfs_mod2_help(buf);

	return off;
}
#else
static ssize_t tpm_sysfs_mod2_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	printk(KERN_WARNING "%s: sysfs help is not compiled (CONFIG_MV_TPM_SYSFS_HELP)\n", __func__);
	return 0;
}
#endif /* CONFIG_MV_TPM_SYSFS_HELP */

static ssize_t tpm_sysfs_mod2_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t len)
{
	const char *name = attr->attr.name;
	uint8_t arg_num;
	uint32_t v1, v2, v3;

	if (!strcmp(name, "show_chain_cfg")) {
		arg_num = sscanf(buf, "%d", &v1);
		if (arg_num == 1)
			tpm_db_mod2_show_chain_cfg_data(v1);
	} else if (!strcmp(name, "show_jump_pmt_entries")) {
		arg_num = sscanf(buf, "%d", &v1);
		if (arg_num == 1)
			tpm_db_mod2_show_jump_pmt_entries(v1);
	} else if (!strcmp(name, "show_chain_pmt_entries")) {
		arg_num = sscanf(buf, "%d %d", &v1, &v2);
		if (arg_num == 2)
			tpm_db_mod2_show_chain_pmt_entries(v1, v2);
	} else if (!strcmp(name, "show_chain_db_entry")) {
		arg_num = sscanf(buf, "%d %d %d", &v1, &v2, &v3);
		if (arg_num == 3)
			tpm_db_mod2_show_chain_info_entries(v1, v2, v3);
	} else if (!strcmp(name, "show_chain_db")) {
		arg_num = sscanf(buf, "%d %d", &v1, &v2);
		if (arg_num == 2)
			tpm_db_mod2_show_chain_info_entries(v1, v2, 0xffff);
	} else if (!strcmp(name, "show_all_chain")) {
		arg_num = sscanf(buf, "%d", &v1);
		if (arg_num == 1)
			tpm_db_mod2_show_all_chain(v1);
	} else if (!strcmp(name, "show_section_free_size")) {
		arg_num = sscanf(buf, "%d", &v1);
		if (arg_num == 1)
			tpm_print_section_free_szie(v1);
	}

	return len;
}

#ifdef CONFIG_MV_TPM_SYSFS_HELP
static DEVICE_ATTR(help, S_IRUSR, tpm_sysfs_print_show, NULL);
#endif
static DEVICE_ATTR(etherports, S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(rx_modules, S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(tx_modules, S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(gmac_cfg, S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(gmac_func, S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(igmp_cfg, S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(misc_cfg, S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(vlan_etype, S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(valid_api_section, S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(valid_pnc_range, S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(init_tables, S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(mtu_cfg, S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(api_dump, S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(show_omci_channel, S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(show_oam_channel, S_IRUSR, tpm_sysfs_print_show, NULL);


static DEVICE_ATTR(length_check_range, S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(pnc_dump, S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(tcam_hw_hits,           S_IRUSR | S_IWUSR, tpm_sysfs_print_show, tpm_sysfs_print_2_store);
static DEVICE_ATTR(tcam_hw_hits_dump,      S_IRUSR | S_IWUSR, tpm_sysfs_print_show, tpm_sysfs_print_2_store);
static DEVICE_ATTR(age_pnc_dump,           S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(age_pnc_dump_live,      S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(age_pnc_dump_hdrs,      S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(age_dump,               S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(age_dump_all,           S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(mc_vlan_dump,           S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(busy_apis,              S_IRUSR, tpm_sysfs_print_show, NULL);
static DEVICE_ATTR(show_mac_learn_entry_count, S_IRUSR, tpm_sysfs_print_show, NULL);

static DEVICE_ATTR(api_section, S_IWUSR, tpm_sysfs_print_show, tpm_sysfs_print_2_store);
static DEVICE_ATTR(pnc_shadow_range, S_IWUSR, tpm_sysfs_print_show, tpm_sysfs_print_6_store);

#ifdef CONFIG_MV_TPM_SYSFS_HELP
static DEVICE_ATTR(help_mod2_print, S_IRUSR, tpm_sysfs_mod2_show, NULL);
#endif
static DEVICE_ATTR(show_jump_cfg, S_IRUSR, tpm_sysfs_mod2_show, NULL);
static DEVICE_ATTR(show_chain_cfg, S_IWUSR, tpm_sysfs_mod2_show, tpm_sysfs_mod2_store);
static DEVICE_ATTR(show_jump_pmt_entries, S_IWUSR, tpm_sysfs_mod2_show, tpm_sysfs_mod2_store);
static DEVICE_ATTR(show_chain_pmt_entries, S_IWUSR, tpm_sysfs_mod2_show, tpm_sysfs_mod2_store);
static DEVICE_ATTR(show_chain_db_entry, S_IWUSR, tpm_sysfs_mod2_show, tpm_sysfs_mod2_store);
static DEVICE_ATTR(show_chain_db, S_IWUSR, tpm_sysfs_mod2_show, tpm_sysfs_mod2_store);
static DEVICE_ATTR(show_all_chain, S_IWUSR, tpm_sysfs_mod2_show, tpm_sysfs_mod2_store);
static DEVICE_ATTR(show_section_free_size, S_IWUSR, tpm_sysfs_mod2_show, tpm_sysfs_mod2_store);

static DEVICE_ATTR(show_fc_config,          S_IRUSR | S_IWUSR, tpm_sysfs_print_show, tpm_sysfs_print_2_store);

static struct attribute *tpm_print_attrs[] = {
#ifdef CONFIG_MV_TPM_SYSFS_HELP
	&dev_attr_help.attr,
#endif
	&dev_attr_etherports.attr,
	&dev_attr_rx_modules.attr,
	&dev_attr_tx_modules.attr,
	&dev_attr_gmac_cfg.attr,
	&dev_attr_gmac_func.attr,
	&dev_attr_igmp_cfg.attr,
	&dev_attr_misc_cfg.attr,
	&dev_attr_vlan_etype.attr,
	&dev_attr_valid_api_section.attr,
	&dev_attr_valid_pnc_range.attr,
	&dev_attr_init_tables.attr,
	&dev_attr_api_section.attr,
	&dev_attr_pnc_shadow_range.attr,
	&dev_attr_mtu_cfg.attr,
	&dev_attr_length_check_range.attr,
	&dev_attr_api_dump.attr,
	&dev_attr_pnc_dump.attr,
	&dev_attr_tcam_hw_hits.attr,
	&dev_attr_tcam_hw_hits_dump.attr,
	&dev_attr_age_pnc_dump.attr,
	&dev_attr_age_pnc_dump_live.attr,
	&dev_attr_age_pnc_dump_hdrs.attr,
	&dev_attr_age_dump.attr,
	&dev_attr_age_dump_all.attr,
	&dev_attr_mc_vlan_dump.attr,
	&dev_attr_show_omci_channel.attr,
	&dev_attr_show_oam_channel.attr,
	&dev_attr_busy_apis.attr,
	&dev_attr_show_mac_learn_entry_count.attr,
	&dev_attr_show_fc_config.attr,

#ifdef CONFIG_MV_TPM_SYSFS_HELP
	&dev_attr_help_mod2_print.attr,
#endif
	&dev_attr_show_jump_cfg.attr,
	&dev_attr_show_chain_cfg.attr,
	&dev_attr_show_jump_pmt_entries.attr,
	&dev_attr_show_chain_pmt_entries.attr,
	&dev_attr_show_chain_db_entry.attr,
	&dev_attr_show_chain_db.attr,
	&dev_attr_show_all_chain.attr,
	&dev_attr_show_section_free_size.attr,

	NULL
};

static struct attribute_group tpm_print_group = {
	.name = "print",
	.attrs = tpm_print_attrs,
};

int tpm_sysfs_print_init(void)
{
	int err;
	struct device *pd;

	pd = bus_find_device_by_name(&platform_bus_type, NULL, "tpm");
	if (!pd) {
		platform_device_register_simple("tpm", -1, NULL, 0);
		pd = bus_find_device_by_name(&platform_bus_type, NULL, "tpm");
	}

	if (!pd) {
		printk(KERN_ERR "%s: cannot find tpm device\n", __func__);
		pd = &platform_bus;
	}

	err = sysfs_create_group(&pd->kobj, &tpm_print_group);
	if (err) {
		printk(KERN_ERR "sysfs group failed %d\n", err);
		goto out;
	}
out:
	return err;
}

/*module_init(xxx); */

MODULE_AUTHOR("Yuval Caduri");
MODULE_DESCRIPTION("sysfs for TPM Print");
MODULE_LICENSE("GPL");