mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 11:44:01 +08:00
staging: ozwpan: Added basic L2 protocol support
Added the basic implementation of the L2 protocol support used to communicate with devices over the network. Signed-off-by: Chris Kelly <ckelly@ozmodevices.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chris Kelly
Greg Kroah-Hartman
parent
62450bca86
commit
1619cb6f2d
957
drivers/staging/ozwpan/ozproto.c
Normal file
957
drivers/staging/ozwpan/ozproto.c
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@ -0,0 +1,957 @@
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/* -----------------------------------------------------------------------------
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* Copyright (c) 2011 Ozmo Inc
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* Released under the GNU General Public License Version 2 (GPLv2).
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* -----------------------------------------------------------------------------
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/timer.h>
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#include <linux/sched.h>
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#include <linux/netdevice.h>
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#include <linux/errno.h>
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#include <linux/ieee80211.h>
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#include "ozconfig.h"
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#include "ozprotocol.h"
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#include "ozeltbuf.h"
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#include "ozpd.h"
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#include "ozproto.h"
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#include "ozusbsvc.h"
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#include "oztrace.h"
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#include "ozappif.h"
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#include "ozevent.h"
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#include "ozalloc.h"
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#include <asm/unaligned.h>
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#include <linux/uaccess.h>
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#include <net/psnap.h>
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/*------------------------------------------------------------------------------
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*/
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#define OZ_CF_CONN_SUCCESS 1
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#define OZ_CF_CONN_FAILURE 2
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#define OZ_DO_STOP 1
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#define OZ_DO_SLEEP 2
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/* States of the timer.
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*/
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#define OZ_TIMER_IDLE 0
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#define OZ_TIMER_SET 1
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#define OZ_TIMER_IN_HANDLER 2
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#define OZ_MAX_TIMER_POOL_SIZE 16
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/*------------------------------------------------------------------------------
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*/
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struct oz_binding {
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struct packet_type ptype;
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char name[OZ_MAX_BINDING_LEN];
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struct oz_binding *next;
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};
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struct oz_timer {
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struct list_head link;
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struct oz_pd *pd;
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unsigned long due_time;
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int type;
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};
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/*------------------------------------------------------------------------------
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* Static external variables.
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*/
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static DEFINE_SPINLOCK(g_polling_lock);
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static LIST_HEAD(g_pd_list);
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static struct oz_binding *g_binding ;
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static DEFINE_SPINLOCK(g_binding_lock);
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static struct sk_buff_head g_rx_queue;
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static u8 g_session_id;
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static u16 g_apps = 0x1;
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static int g_processing_rx;
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static struct timer_list g_timer;
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static struct oz_timer *g_cur_timer;
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static struct list_head *g_timer_pool;
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static int g_timer_pool_count;
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static int g_timer_state = OZ_TIMER_IDLE;
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static LIST_HEAD(g_timer_list);
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/*------------------------------------------------------------------------------
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*/
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static void oz_protocol_timer_start(void);
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/*------------------------------------------------------------------------------
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* Context: softirq-serialized
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*/
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static u8 oz_get_new_session_id(u8 exclude)
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{
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if (++g_session_id == 0)
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g_session_id = 1;
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if (g_session_id == exclude) {
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if (++g_session_id == 0)
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g_session_id = 1;
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}
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return g_session_id;
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}
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/*------------------------------------------------------------------------------
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* Context: softirq-serialized
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*/
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static void oz_send_conn_rsp(struct oz_pd *pd, u8 status)
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{
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struct sk_buff *skb;
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struct net_device *dev = pd->net_dev;
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struct oz_hdr *oz_hdr;
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struct oz_elt *elt;
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struct oz_elt_connect_rsp *body;
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int sz = sizeof(struct oz_hdr) + sizeof(struct oz_elt) +
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sizeof(struct oz_elt_connect_rsp);
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skb = alloc_skb(sz + OZ_ALLOCATED_SPACE(dev), GFP_ATOMIC);
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if (skb == 0)
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return;
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skb_reserve(skb, LL_RESERVED_SPACE(dev));
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skb_reset_network_header(skb);
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oz_hdr = (struct oz_hdr *)skb_put(skb, sz);
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elt = (struct oz_elt *)(oz_hdr+1);
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body = (struct oz_elt_connect_rsp *)(elt+1);
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skb->dev = dev;
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skb->protocol = htons(OZ_ETHERTYPE);
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/* Fill in device header */
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if (dev_hard_header(skb, dev, OZ_ETHERTYPE, pd->mac_addr,
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dev->dev_addr, skb->len) < 0) {
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kfree_skb(skb);
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return;
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}
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oz_hdr->control = (OZ_PROTOCOL_VERSION<<OZ_VERSION_SHIFT);
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oz_hdr->last_pkt_num = 0;
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put_unaligned(0, &oz_hdr->pkt_num);
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oz_event_log(OZ_EVT_CONNECT_RSP, 0, 0, 0, 0);
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elt->type = OZ_ELT_CONNECT_RSP;
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elt->length = sizeof(struct oz_elt_connect_rsp);
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memset(body, 0, sizeof(struct oz_elt_connect_rsp));
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body->status = status;
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if (status == 0) {
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body->mode = pd->mode;
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body->session_id = pd->session_id;
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put_unaligned(cpu_to_le16(pd->total_apps), &body->apps);
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}
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oz_trace("TX: OZ_ELT_CONNECT_RSP %d", status);
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dev_queue_xmit(skb);
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return;
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}
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/*------------------------------------------------------------------------------
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* Context: softirq-serialized
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*/
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static void pd_set_keepalive(struct oz_pd *pd, u8 kalive)
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{
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unsigned long keep_alive = kalive & OZ_KALIVE_VALUE_MASK;
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switch (kalive & OZ_KALIVE_TYPE_MASK) {
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case OZ_KALIVE_SPECIAL:
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pd->keep_alive_j =
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oz_ms_to_jiffies(keep_alive * 1000*60*60*24*20);
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break;
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case OZ_KALIVE_SECS:
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pd->keep_alive_j = oz_ms_to_jiffies(keep_alive*1000);
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break;
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case OZ_KALIVE_MINS:
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pd->keep_alive_j = oz_ms_to_jiffies(keep_alive*1000*60);
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break;
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case OZ_KALIVE_HOURS:
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pd->keep_alive_j = oz_ms_to_jiffies(keep_alive*1000*60*60);
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break;
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default:
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pd->keep_alive_j = 0;
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}
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oz_trace("Keepalive = %lu jiffies\n", pd->keep_alive_j);
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}
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/*------------------------------------------------------------------------------
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* Context: softirq-serialized
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*/
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static void pd_set_presleep(struct oz_pd *pd, u8 presleep)
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{
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if (presleep)
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pd->presleep_j = oz_ms_to_jiffies(presleep*100);
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else
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pd->presleep_j = OZ_PRESLEEP_TOUT_J;
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oz_trace("Presleep time = %lu jiffies\n", pd->presleep_j);
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}
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/*------------------------------------------------------------------------------
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* Context: softirq-serialized
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*/
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static struct oz_pd *oz_connect_req(struct oz_pd *cur_pd, struct oz_elt *elt,
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u8 *pd_addr, struct net_device *net_dev)
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{
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struct oz_pd *pd;
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struct oz_elt_connect_req *body =
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(struct oz_elt_connect_req *)(elt+1);
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u8 rsp_status = OZ_STATUS_SUCCESS;
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u8 stop_needed = 0;
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u16 new_apps = g_apps;
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struct net_device *old_net_dev = 0;
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struct oz_pd *free_pd = 0;
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if (cur_pd) {
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pd = cur_pd;
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spin_lock_bh(&g_polling_lock);
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} else {
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struct oz_pd *pd2 = 0;
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struct list_head *e;
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pd = oz_pd_alloc(pd_addr);
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if (pd == 0)
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return 0;
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pd->last_rx_time_j = jiffies;
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spin_lock_bh(&g_polling_lock);
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list_for_each(e, &g_pd_list) {
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pd2 = container_of(e, struct oz_pd, link);
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if (memcmp(pd2->mac_addr, pd_addr, ETH_ALEN) == 0) {
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free_pd = pd;
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pd = pd2;
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break;
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}
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}
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if (pd != pd2)
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list_add_tail(&pd->link, &g_pd_list);
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}
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if (pd == 0) {
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spin_unlock_bh(&g_polling_lock);
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return 0;
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}
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if (pd->net_dev != net_dev) {
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old_net_dev = pd->net_dev;
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dev_hold(net_dev);
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pd->net_dev = net_dev;
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}
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oz_trace("Host vendor: %d\n", body->host_vendor);
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pd->max_tx_size = OZ_MAX_TX_SIZE;
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pd->mode = body->mode;
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pd->pd_info = body->pd_info;
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if (pd->mode & OZ_F_ISOC_NO_ELTS) {
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pd->mode |= OZ_F_ISOC_ANYTIME;
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pd->ms_per_isoc = body->ms_per_isoc;
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if (!pd->ms_per_isoc)
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pd->ms_per_isoc = 4;
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}
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if (body->max_len_div16)
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pd->max_tx_size = ((u16)body->max_len_div16)<<4;
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oz_trace("Max frame:%u Ms per isoc:%u\n",
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pd->max_tx_size, pd->ms_per_isoc);
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pd->max_stream_buffering = 3*1024;
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pd->timeout_time_j = jiffies + OZ_CONNECTION_TOUT_J;
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pd->pulse_period_j = OZ_QUANTUM_J;
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pd_set_presleep(pd, body->presleep);
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pd_set_keepalive(pd, body->keep_alive);
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new_apps &= le16_to_cpu(get_unaligned(&body->apps));
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if ((new_apps & 0x1) && (body->session_id)) {
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if (pd->session_id) {
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if (pd->session_id != body->session_id) {
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rsp_status = OZ_STATUS_SESSION_MISMATCH;
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goto done;
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}
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} else {
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new_apps &= ~0x1; /* Resume not permitted */
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pd->session_id =
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oz_get_new_session_id(body->session_id);
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}
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} else {
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if (pd->session_id && !body->session_id) {
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rsp_status = OZ_STATUS_SESSION_TEARDOWN;
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stop_needed = 1;
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} else {
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new_apps &= ~0x1; /* Resume not permitted */
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pd->session_id =
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oz_get_new_session_id(body->session_id);
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}
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}
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done:
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if (rsp_status == OZ_STATUS_SUCCESS) {
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u16 start_apps = new_apps & ~pd->total_apps & ~0x1;
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u16 stop_apps = pd->total_apps & ~new_apps & ~0x1;
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u16 resume_apps = new_apps & pd->paused_apps & ~0x1;
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spin_unlock_bh(&g_polling_lock);
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oz_pd_set_state(pd, OZ_PD_S_CONNECTED);
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oz_timer_delete(pd, OZ_TIMER_STOP);
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oz_trace("new_apps=0x%x total_apps=0x%x paused_apps=0x%x\n",
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new_apps, pd->total_apps, pd->paused_apps);
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if (start_apps) {
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if (oz_services_start(pd, start_apps, 0))
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rsp_status = OZ_STATUS_TOO_MANY_PDS;
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}
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if (resume_apps)
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if (oz_services_start(pd, resume_apps, 1))
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rsp_status = OZ_STATUS_TOO_MANY_PDS;
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if (stop_apps)
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oz_services_stop(pd, stop_apps, 0);
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oz_pd_request_heartbeat(pd);
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} else {
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spin_unlock_bh(&g_polling_lock);
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}
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oz_send_conn_rsp(pd, rsp_status);
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if (rsp_status != OZ_STATUS_SUCCESS) {
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if (stop_needed)
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oz_pd_stop(pd);
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oz_pd_put(pd);
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pd = 0;
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}
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if (old_net_dev)
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dev_put(old_net_dev);
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if (free_pd)
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oz_pd_destroy(free_pd);
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return pd;
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}
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/*------------------------------------------------------------------------------
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* Context: softirq-serialized
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*/
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static void oz_add_farewell(struct oz_pd *pd, u8 ep_num, u8 index,
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u8 *report, u8 len)
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{
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struct oz_farewell *f;
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struct oz_farewell *f2;
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int found = 0;
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f = oz_alloc(sizeof(struct oz_farewell) + len - 1, GFP_ATOMIC);
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if (!f)
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return;
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f->ep_num = ep_num;
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f->index = index;
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memcpy(f->report, report, len);
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oz_trace("RX: Adding farewell report\n");
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spin_lock(&g_polling_lock);
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list_for_each_entry(f2, &pd->farewell_list, link) {
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if ((f2->ep_num == ep_num) && (f2->index == index)) {
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found = 1;
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list_del(&f2->link);
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break;
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}
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}
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list_add_tail(&f->link, &pd->farewell_list);
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spin_unlock(&g_polling_lock);
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if (found)
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oz_free(f2);
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}
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/*------------------------------------------------------------------------------
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* Context: softirq-serialized
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*/
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static void oz_rx_frame(struct sk_buff *skb)
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{
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u8 *mac_hdr;
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u8 *src_addr;
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struct oz_elt *elt;
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int length;
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struct oz_pd *pd = 0;
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struct oz_hdr *oz_hdr = (struct oz_hdr *)skb_network_header(skb);
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int dup = 0;
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u32 pkt_num;
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oz_event_log(OZ_EVT_RX_PROCESS, 0,
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(((u16)oz_hdr->control)<<8)|oz_hdr->last_pkt_num,
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0, oz_hdr->pkt_num);
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oz_trace2(OZ_TRACE_RX_FRAMES,
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"RX frame PN=0x%x LPN=0x%x control=0x%x\n",
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oz_hdr->pkt_num, oz_hdr->last_pkt_num, oz_hdr->control);
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mac_hdr = skb_mac_header(skb);
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src_addr = &mac_hdr[ETH_ALEN] ;
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length = skb->len;
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/* Check the version field */
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if (oz_get_prot_ver(oz_hdr->control) != OZ_PROTOCOL_VERSION) {
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oz_trace("Incorrect protocol version: %d\n",
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oz_get_prot_ver(oz_hdr->control));
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goto done;
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}
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pkt_num = le32_to_cpu(get_unaligned(&oz_hdr->pkt_num));
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pd = oz_pd_find(src_addr);
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if (pd) {
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pd->last_rx_time_j = jiffies;
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oz_timer_add(pd, OZ_TIMER_TOUT,
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pd->last_rx_time_j + pd->presleep_j, 1);
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if (pkt_num != pd->last_rx_pkt_num) {
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pd->last_rx_pkt_num = pkt_num;
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} else {
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dup = 1;
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oz_trace("Duplicate frame\n");
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}
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}
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if (pd && !dup && ((pd->mode & OZ_MODE_MASK) == OZ_MODE_TRIGGERED)) {
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pd->last_sent_frame = &pd->tx_queue;
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if (oz_hdr->control & OZ_F_ACK) {
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/* Retire completed frames */
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oz_retire_tx_frames(pd, oz_hdr->last_pkt_num);
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}
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if ((oz_hdr->control & OZ_F_ACK_REQUESTED) &&
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(pd->state == OZ_PD_S_CONNECTED)) {
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int backlog = pd->nb_queued_frames;
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pd->trigger_pkt_num = pkt_num;
|
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/* Send queued frames */
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while (oz_prepare_frame(pd, 0) >= 0)
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;
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oz_send_queued_frames(pd, backlog);
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}
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}
|
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length -= sizeof(struct oz_hdr);
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elt = (struct oz_elt *)((u8 *)oz_hdr + sizeof(struct oz_hdr));
|
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while (length >= sizeof(struct oz_elt)) {
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length -= sizeof(struct oz_elt) + elt->length;
|
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if (length < 0)
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break;
|
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switch (elt->type) {
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case OZ_ELT_CONNECT_REQ:
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oz_event_log(OZ_EVT_CONNECT_REQ, 0, 0, 0, 0);
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oz_trace("RX: OZ_ELT_CONNECT_REQ\n");
|
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pd = oz_connect_req(pd, elt, src_addr, skb->dev);
|
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break;
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case OZ_ELT_DISCONNECT:
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oz_trace("RX: OZ_ELT_DISCONNECT\n");
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if (pd)
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oz_pd_sleep(pd);
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break;
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case OZ_ELT_UPDATE_PARAM_REQ: {
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struct oz_elt_update_param *body =
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(struct oz_elt_update_param *)(elt + 1);
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oz_trace("RX: OZ_ELT_UPDATE_PARAM_REQ\n");
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if (pd && (pd->state & OZ_PD_S_CONNECTED)) {
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spin_lock(&g_polling_lock);
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pd_set_keepalive(pd, body->keepalive);
|
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pd_set_presleep(pd, body->presleep);
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spin_unlock(&g_polling_lock);
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}
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}
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break;
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case OZ_ELT_FAREWELL_REQ: {
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struct oz_elt_farewell *body =
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(struct oz_elt_farewell *)(elt + 1);
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oz_trace("RX: OZ_ELT_FAREWELL_REQ\n");
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oz_add_farewell(pd, body->ep_num,
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body->index, body->report,
|
||||
elt->length + 1 - sizeof(*body));
|
||||
}
|
||||
break;
|
||||
case OZ_ELT_APP_DATA:
|
||||
if (pd && (pd->state & OZ_PD_S_CONNECTED)) {
|
||||
struct oz_app_hdr *app_hdr =
|
||||
(struct oz_app_hdr *)(elt+1);
|
||||
if (dup)
|
||||
break;
|
||||
oz_handle_app_elt(pd, app_hdr->app_id, elt);
|
||||
}
|
||||
break;
|
||||
default:
|
||||
oz_trace("RX: Unknown elt %02x\n", elt->type);
|
||||
}
|
||||
elt = oz_next_elt(elt);
|
||||
}
|
||||
done:
|
||||
if (pd)
|
||||
oz_pd_put(pd);
|
||||
consume_skb(skb);
|
||||
}
|
||||
/*------------------------------------------------------------------------------
|
||||
* Context: process
|
||||
*/
|
||||
void oz_protocol_term(void)
|
||||
{
|
||||
struct list_head *chain = 0;
|
||||
del_timer_sync(&g_timer);
|
||||
/* Walk the list of bindings and remove each one.
|
||||
*/
|
||||
spin_lock_bh(&g_binding_lock);
|
||||
while (g_binding) {
|
||||
struct oz_binding *b = g_binding;
|
||||
g_binding = b->next;
|
||||
spin_unlock_bh(&g_binding_lock);
|
||||
dev_remove_pack(&b->ptype);
|
||||
if (b->ptype.dev)
|
||||
dev_put(b->ptype.dev);
|
||||
oz_free(b);
|
||||
spin_lock_bh(&g_binding_lock);
|
||||
}
|
||||
spin_unlock_bh(&g_binding_lock);
|
||||
/* Walk the list of PDs and stop each one. This causes the PD to be
|
||||
* removed from the list so we can just pull each one from the head
|
||||
* of the list.
|
||||
*/
|
||||
spin_lock_bh(&g_polling_lock);
|
||||
while (!list_empty(&g_pd_list)) {
|
||||
struct oz_pd *pd =
|
||||
list_first_entry(&g_pd_list, struct oz_pd, link);
|
||||
oz_pd_get(pd);
|
||||
spin_unlock_bh(&g_polling_lock);
|
||||
oz_pd_stop(pd);
|
||||
oz_pd_put(pd);
|
||||
spin_lock_bh(&g_polling_lock);
|
||||
}
|
||||
chain = g_timer_pool;
|
||||
g_timer_pool = 0;
|
||||
spin_unlock_bh(&g_polling_lock);
|
||||
while (chain) {
|
||||
struct oz_timer *t = container_of(chain, struct oz_timer, link);
|
||||
chain = chain->next;
|
||||
oz_free(t);
|
||||
}
|
||||
oz_trace("Protocol stopped\n");
|
||||
}
|
||||
/*------------------------------------------------------------------------------
|
||||
* Context: softirq
|
||||
*/
|
||||
static void oz_pd_handle_timer(struct oz_pd *pd, int type)
|
||||
{
|
||||
switch (type) {
|
||||
case OZ_TIMER_TOUT:
|
||||
oz_pd_sleep(pd);
|
||||
break;
|
||||
case OZ_TIMER_STOP:
|
||||
oz_pd_stop(pd);
|
||||
break;
|
||||
case OZ_TIMER_HEARTBEAT: {
|
||||
u16 apps = 0;
|
||||
spin_lock_bh(&g_polling_lock);
|
||||
pd->heartbeat_requested = 0;
|
||||
if (pd->state & OZ_PD_S_CONNECTED)
|
||||
apps = pd->total_apps;
|
||||
spin_unlock_bh(&g_polling_lock);
|
||||
if (apps)
|
||||
oz_pd_heartbeat(pd, apps);
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
/*------------------------------------------------------------------------------
|
||||
* Context: softirq
|
||||
*/
|
||||
static void oz_protocol_timer(unsigned long arg)
|
||||
{
|
||||
struct oz_timer *t;
|
||||
struct oz_timer *t2;
|
||||
struct oz_pd *pd;
|
||||
spin_lock_bh(&g_polling_lock);
|
||||
if (!g_cur_timer) {
|
||||
/* This happens if we remove the current timer but can't stop
|
||||
* the timer from firing. In this case just get out.
|
||||
*/
|
||||
oz_event_log(OZ_EVT_TIMER, 0, 0, 0, 0);
|
||||
spin_unlock_bh(&g_polling_lock);
|
||||
return;
|
||||
}
|
||||
g_timer_state = OZ_TIMER_IN_HANDLER;
|
||||
t = g_cur_timer;
|
||||
g_cur_timer = 0;
|
||||
list_del(&t->link);
|
||||
spin_unlock_bh(&g_polling_lock);
|
||||
do {
|
||||
pd = t->pd;
|
||||
oz_event_log(OZ_EVT_TIMER, 0, t->type, 0, 0);
|
||||
oz_pd_handle_timer(pd, t->type);
|
||||
spin_lock_bh(&g_polling_lock);
|
||||
if (g_timer_pool_count < OZ_MAX_TIMER_POOL_SIZE) {
|
||||
t->link.next = g_timer_pool;
|
||||
g_timer_pool = &t->link;
|
||||
g_timer_pool_count++;
|
||||
t = 0;
|
||||
}
|
||||
if (!list_empty(&g_timer_list)) {
|
||||
t2 = container_of(g_timer_list.next,
|
||||
struct oz_timer, link);
|
||||
if (time_before_eq(t2->due_time, jiffies))
|
||||
list_del(&t2->link);
|
||||
else
|
||||
t2 = 0;
|
||||
} else {
|
||||
t2 = 0;
|
||||
}
|
||||
spin_unlock_bh(&g_polling_lock);
|
||||
oz_pd_put(pd);
|
||||
if (t)
|
||||
oz_free(t);
|
||||
t = t2;
|
||||
} while (t);
|
||||
g_timer_state = OZ_TIMER_IDLE;
|
||||
oz_protocol_timer_start();
|
||||
}
|
||||
/*------------------------------------------------------------------------------
|
||||
* Context: softirq
|
||||
*/
|
||||
static void oz_protocol_timer_start(void)
|
||||
{
|
||||
spin_lock_bh(&g_polling_lock);
|
||||
if (!list_empty(&g_timer_list)) {
|
||||
g_cur_timer =
|
||||
container_of(g_timer_list.next, struct oz_timer, link);
|
||||
if (g_timer_state == OZ_TIMER_SET) {
|
||||
oz_event_log(OZ_EVT_TIMER_CTRL, 3,
|
||||
(u16)g_cur_timer->type, 0,
|
||||
(unsigned)g_cur_timer->due_time);
|
||||
mod_timer(&g_timer, g_cur_timer->due_time);
|
||||
} else {
|
||||
oz_event_log(OZ_EVT_TIMER_CTRL, 4,
|
||||
(u16)g_cur_timer->type, 0,
|
||||
(unsigned)g_cur_timer->due_time);
|
||||
g_timer.expires = g_cur_timer->due_time;
|
||||
g_timer.function = oz_protocol_timer;
|
||||
g_timer.data = 0;
|
||||
add_timer(&g_timer);
|
||||
}
|
||||
g_timer_state = OZ_TIMER_SET;
|
||||
} else {
|
||||
oz_trace("No queued timers\n");
|
||||
}
|
||||
spin_unlock_bh(&g_polling_lock);
|
||||
}
|
||||
/*------------------------------------------------------------------------------
|
||||
* Context: softirq or process
|
||||
*/
|
||||
void oz_timer_add(struct oz_pd *pd, int type, unsigned long due_time,
|
||||
int remove)
|
||||
{
|
||||
struct list_head *e;
|
||||
struct oz_timer *t = 0;
|
||||
int restart_needed = 0;
|
||||
oz_event_log(OZ_EVT_TIMER_CTRL, 1, (u16)type, 0, (unsigned)due_time);
|
||||
spin_lock(&g_polling_lock);
|
||||
if (remove) {
|
||||
list_for_each(e, &g_timer_list) {
|
||||
t = container_of(e, struct oz_timer, link);
|
||||
if ((t->pd == pd) && (t->type == type)) {
|
||||
if (g_cur_timer == t) {
|
||||
restart_needed = 1;
|
||||
g_cur_timer = 0;
|
||||
}
|
||||
list_del(e);
|
||||
break;
|
||||
}
|
||||
t = 0;
|
||||
}
|
||||
}
|
||||
if (!t) {
|
||||
if (g_timer_pool) {
|
||||
t = container_of(g_timer_pool, struct oz_timer, link);
|
||||
g_timer_pool = g_timer_pool->next;
|
||||
g_timer_pool_count--;
|
||||
} else {
|
||||
t = oz_alloc(sizeof(struct oz_timer), GFP_ATOMIC);
|
||||
}
|
||||
if (t) {
|
||||
t->pd = pd;
|
||||
t->type = type;
|
||||
oz_pd_get(pd);
|
||||
}
|
||||
}
|
||||
if (t) {
|
||||
struct oz_timer *t2;
|
||||
t->due_time = due_time;
|
||||
list_for_each(e, &g_timer_list) {
|
||||
t2 = container_of(e, struct oz_timer, link);
|
||||
if (time_before(due_time, t2->due_time)) {
|
||||
if (t2 == g_cur_timer) {
|
||||
g_cur_timer = 0;
|
||||
restart_needed = 1;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
list_add_tail(&t->link, e);
|
||||
}
|
||||
if (g_timer_state == OZ_TIMER_IDLE)
|
||||
restart_needed = 1;
|
||||
else if (g_timer_state == OZ_TIMER_IN_HANDLER)
|
||||
restart_needed = 0;
|
||||
spin_unlock(&g_polling_lock);
|
||||
if (restart_needed)
|
||||
oz_protocol_timer_start();
|
||||
}
|
||||
/*------------------------------------------------------------------------------
|
||||
* Context: softirq or process
|
||||
*/
|
||||
void oz_timer_delete(struct oz_pd *pd, int type)
|
||||
{
|
||||
struct list_head *chain = 0;
|
||||
struct oz_timer *t;
|
||||
struct oz_timer *n;
|
||||
int restart_needed = 0;
|
||||
int release = 0;
|
||||
oz_event_log(OZ_EVT_TIMER_CTRL, 2, (u16)type, 0, 0);
|
||||
spin_lock(&g_polling_lock);
|
||||
list_for_each_entry_safe(t, n, &g_timer_list, link) {
|
||||
if ((t->pd == pd) && ((type == 0) || (t->type == type))) {
|
||||
if (g_cur_timer == t) {
|
||||
restart_needed = 1;
|
||||
g_cur_timer = 0;
|
||||
del_timer(&g_timer);
|
||||
}
|
||||
list_del(&t->link);
|
||||
release++;
|
||||
if (g_timer_pool_count < OZ_MAX_TIMER_POOL_SIZE) {
|
||||
t->link.next = g_timer_pool;
|
||||
g_timer_pool = &t->link;
|
||||
g_timer_pool_count++;
|
||||
} else {
|
||||
t->link.next = chain;
|
||||
chain = &t->link;
|
||||
}
|
||||
if (type)
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (g_timer_state == OZ_TIMER_IN_HANDLER)
|
||||
restart_needed = 0;
|
||||
else if (restart_needed)
|
||||
g_timer_state = OZ_TIMER_IDLE;
|
||||
spin_unlock(&g_polling_lock);
|
||||
if (restart_needed)
|
||||
oz_protocol_timer_start();
|
||||
while (release--)
|
||||
oz_pd_put(pd);
|
||||
while (chain) {
|
||||
t = container_of(chain, struct oz_timer, link);
|
||||
chain = chain->next;
|
||||
oz_free(t);
|
||||
}
|
||||
}
|
||||
/*------------------------------------------------------------------------------
|
||||
* Context: softirq or process
|
||||
*/
|
||||
void oz_pd_request_heartbeat(struct oz_pd *pd)
|
||||
{
|
||||
unsigned long now = jiffies;
|
||||
unsigned long t;
|
||||
spin_lock(&g_polling_lock);
|
||||
if (pd->heartbeat_requested) {
|
||||
spin_unlock(&g_polling_lock);
|
||||
return;
|
||||
}
|
||||
if (pd->pulse_period_j)
|
||||
t = ((now / pd->pulse_period_j) + 1) * pd->pulse_period_j;
|
||||
else
|
||||
t = now + 1;
|
||||
pd->heartbeat_requested = 1;
|
||||
spin_unlock(&g_polling_lock);
|
||||
oz_timer_add(pd, OZ_TIMER_HEARTBEAT, t, 0);
|
||||
}
|
||||
/*------------------------------------------------------------------------------
|
||||
* Context: softirq or process
|
||||
*/
|
||||
struct oz_pd *oz_pd_find(u8 *mac_addr)
|
||||
{
|
||||
struct oz_pd *pd;
|
||||
struct list_head *e;
|
||||
spin_lock_bh(&g_polling_lock);
|
||||
list_for_each(e, &g_pd_list) {
|
||||
pd = container_of(e, struct oz_pd, link);
|
||||
if (memcmp(pd->mac_addr, mac_addr, ETH_ALEN) == 0) {
|
||||
atomic_inc(&pd->ref_count);
|
||||
spin_unlock_bh(&g_polling_lock);
|
||||
return pd;
|
||||
}
|
||||
}
|
||||
spin_unlock_bh(&g_polling_lock);
|
||||
return 0;
|
||||
}
|
||||
/*------------------------------------------------------------------------------
|
||||
* Context: process
|
||||
*/
|
||||
void oz_app_enable(int app_id, int enable)
|
||||
{
|
||||
if (app_id <= OZ_APPID_MAX) {
|
||||
spin_lock_bh(&g_polling_lock);
|
||||
if (enable)
|
||||
g_apps |= (1<<app_id);
|
||||
else
|
||||
g_apps &= ~(1<<app_id);
|
||||
spin_unlock_bh(&g_polling_lock);
|
||||
}
|
||||
}
|
||||
/*------------------------------------------------------------------------------
|
||||
* Context: softirq
|
||||
*/
|
||||
static int oz_pkt_recv(struct sk_buff *skb, struct net_device *dev,
|
||||
struct packet_type *pt, struct net_device *orig_dev)
|
||||
{
|
||||
oz_event_log(OZ_EVT_RX_FRAME, 0, 0, 0, 0);
|
||||
skb = skb_share_check(skb, GFP_ATOMIC);
|
||||
if (skb == 0)
|
||||
return 0;
|
||||
spin_lock_bh(&g_rx_queue.lock);
|
||||
if (g_processing_rx) {
|
||||
/* We already hold the lock so use __ variant.
|
||||
*/
|
||||
__skb_queue_head(&g_rx_queue, skb);
|
||||
spin_unlock_bh(&g_rx_queue.lock);
|
||||
} else {
|
||||
g_processing_rx = 1;
|
||||
do {
|
||||
|
||||
spin_unlock_bh(&g_rx_queue.lock);
|
||||
oz_rx_frame(skb);
|
||||
spin_lock_bh(&g_rx_queue.lock);
|
||||
if (skb_queue_empty(&g_rx_queue)) {
|
||||
g_processing_rx = 0;
|
||||
spin_unlock_bh(&g_rx_queue.lock);
|
||||
break;
|
||||
}
|
||||
/* We already hold the lock so use __ variant.
|
||||
*/
|
||||
skb = __skb_dequeue(&g_rx_queue);
|
||||
} while (1);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
/*------------------------------------------------------------------------------
|
||||
* Context: process
|
||||
*/
|
||||
void oz_binding_add(char *net_dev)
|
||||
{
|
||||
struct oz_binding *binding;
|
||||
binding = oz_alloc(sizeof(struct oz_binding), GFP_ATOMIC);
|
||||
if (binding) {
|
||||
binding->ptype.type = __constant_htons(OZ_ETHERTYPE);
|
||||
binding->ptype.func = oz_pkt_recv;
|
||||
memcpy(binding->name, net_dev, OZ_MAX_BINDING_LEN);
|
||||
if (net_dev && *net_dev) {
|
||||
oz_trace("Adding binding: %s\n", net_dev);
|
||||
binding->ptype.dev =
|
||||
dev_get_by_name(&init_net, net_dev);
|
||||
if (binding->ptype.dev == 0) {
|
||||
oz_trace("Netdev %s not found\n", net_dev);
|
||||
oz_free(binding);
|
||||
binding = 0;
|
||||
}
|
||||
} else {
|
||||
oz_trace("Binding to all netcards\n");
|
||||
binding->ptype.dev = 0;
|
||||
}
|
||||
if (binding) {
|
||||
dev_add_pack(&binding->ptype);
|
||||
spin_lock_bh(&g_binding_lock);
|
||||
binding->next = g_binding;
|
||||
g_binding = binding;
|
||||
spin_unlock_bh(&g_binding_lock);
|
||||
}
|
||||
}
|
||||
}
|
||||
/*------------------------------------------------------------------------------
|
||||
* Context: process
|
||||
*/
|
||||
static int compare_binding_name(char *s1, char *s2)
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < OZ_MAX_BINDING_LEN; i++) {
|
||||
if (*s1 != *s2)
|
||||
return 0;
|
||||
if (!*s1++)
|
||||
return 1;
|
||||
s2++;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
/*------------------------------------------------------------------------------
|
||||
* Context: process
|
||||
*/
|
||||
static void pd_stop_all_for_device(struct net_device *net_dev)
|
||||
{
|
||||
struct list_head h;
|
||||
struct oz_pd *pd;
|
||||
struct oz_pd *n;
|
||||
INIT_LIST_HEAD(&h);
|
||||
spin_lock_bh(&g_polling_lock);
|
||||
list_for_each_entry_safe(pd, n, &g_pd_list, link) {
|
||||
if (pd->net_dev == net_dev) {
|
||||
list_move(&pd->link, &h);
|
||||
oz_pd_get(pd);
|
||||
}
|
||||
}
|
||||
spin_unlock_bh(&g_polling_lock);
|
||||
while (!list_empty(&h)) {
|
||||
pd = list_first_entry(&h, struct oz_pd, link);
|
||||
oz_pd_stop(pd);
|
||||
oz_pd_put(pd);
|
||||
}
|
||||
}
|
||||
/*------------------------------------------------------------------------------
|
||||
* Context: process
|
||||
*/
|
||||
void oz_binding_remove(char *net_dev)
|
||||
{
|
||||
struct oz_binding *binding = 0;
|
||||
struct oz_binding **link;
|
||||
oz_trace("Removing binding: %s\n", net_dev);
|
||||
spin_lock_bh(&g_binding_lock);
|
||||
binding = g_binding;
|
||||
link = &g_binding;
|
||||
while (binding) {
|
||||
if (compare_binding_name(binding->name, net_dev)) {
|
||||
oz_trace("Binding '%s' found\n", net_dev);
|
||||
*link = binding->next;
|
||||
break;
|
||||
} else {
|
||||
link = &binding;
|
||||
binding = binding->next;
|
||||
}
|
||||
}
|
||||
spin_unlock_bh(&g_binding_lock);
|
||||
if (binding) {
|
||||
dev_remove_pack(&binding->ptype);
|
||||
if (binding->ptype.dev) {
|
||||
dev_put(binding->ptype.dev);
|
||||
pd_stop_all_for_device(binding->ptype.dev);
|
||||
}
|
||||
oz_free(binding);
|
||||
}
|
||||
}
|
||||
/*------------------------------------------------------------------------------
|
||||
* Context: process
|
||||
*/
|
||||
static char *oz_get_next_device_name(char *s, char *dname, int max_size)
|
||||
{
|
||||
while (*s == ',')
|
||||
s++;
|
||||
while (*s && (*s != ',') && max_size > 1) {
|
||||
*dname++ = *s++;
|
||||
max_size--;
|
||||
}
|
||||
*dname = 0;
|
||||
return s;
|
||||
}
|
||||
/*------------------------------------------------------------------------------
|
||||
* Context: process
|
||||
*/
|
||||
int oz_protocol_init(char *devs)
|
||||
{
|
||||
skb_queue_head_init(&g_rx_queue);
|
||||
if (devs && (devs[0] == '*')) {
|
||||
oz_binding_add(0);
|
||||
} else {
|
||||
char d[32];
|
||||
while (*devs) {
|
||||
devs = oz_get_next_device_name(devs, d, sizeof(d));
|
||||
if (d[0])
|
||||
oz_binding_add(d);
|
||||
}
|
||||
}
|
||||
init_timer(&g_timer);
|
||||
return 0;
|
||||
}
|
||||
/*------------------------------------------------------------------------------
|
||||
* Context: process
|
||||
*/
|
||||
int oz_get_pd_list(struct oz_mac_addr *addr, int max_count)
|
||||
{
|
||||
struct oz_pd *pd;
|
||||
struct list_head *e;
|
||||
int count = 0;
|
||||
spin_lock_bh(&g_polling_lock);
|
||||
list_for_each(e, &g_pd_list) {
|
||||
if (count >= max_count)
|
||||
break;
|
||||
pd = container_of(e, struct oz_pd, link);
|
||||
memcpy(&addr[count++], pd->mac_addr, ETH_ALEN);
|
||||
}
|
||||
spin_unlock_bh(&g_polling_lock);
|
||||
return count;
|
||||
}
|
||||
/*------------------------------------------------------------------------------
|
||||
*/
|
||||
void oz_polling_lock_bh(void)
|
||||
{
|
||||
spin_lock_bh(&g_polling_lock);
|
||||
}
|
||||
/*------------------------------------------------------------------------------
|
||||
*/
|
||||
void oz_polling_unlock_bh(void)
|
||||
{
|
||||
spin_unlock_bh(&g_polling_lock);
|
||||
}
|
||||
69
drivers/staging/ozwpan/ozproto.h
Normal file
69
drivers/staging/ozwpan/ozproto.h
Normal file
@ -0,0 +1,69 @@
|
||||
/* -----------------------------------------------------------------------------
|
||||
* Copyright (c) 2011 Ozmo Inc
|
||||
* Released under the GNU General Public License Version 2 (GPLv2).
|
||||
* -----------------------------------------------------------------------------
|
||||
*/
|
||||
#ifndef _OZPROTO_H
|
||||
#define _OZPROTO_H
|
||||
|
||||
#include <asm/byteorder.h>
|
||||
#include "ozconfig.h"
|
||||
#include "ozappif.h"
|
||||
|
||||
#define OZ_ALLOCATED_SPACE(__x) (LL_RESERVED_SPACE(__x)+(__x)->needed_tailroom)
|
||||
|
||||
/* Converts millisecs to jiffies.
|
||||
*/
|
||||
#define oz_ms_to_jiffies(__x) (((__x)*1000)/HZ)
|
||||
|
||||
/* Quantum milliseconds.
|
||||
*/
|
||||
#define OZ_QUANTUM_MS 8
|
||||
/* Quantum jiffies
|
||||
*/
|
||||
#define OZ_QUANTUM_J (oz_ms_to_jiffies(OZ_QUANTUM_MS))
|
||||
/* Default timeouts.
|
||||
*/
|
||||
#define OZ_CONNECTION_TOUT_J (2*HZ)
|
||||
#define OZ_PRESLEEP_TOUT_J (11*HZ)
|
||||
|
||||
/* Maximun sizes of tx frames. */
|
||||
#define OZ_MAX_TX_SIZE 1514
|
||||
|
||||
/* Application handler functions.
|
||||
*/
|
||||
typedef int (*oz_app_init_fn_t)(void);
|
||||
typedef void (*oz_app_term_fn_t)(void);
|
||||
typedef int (*oz_app_start_fn_t)(struct oz_pd *pd, int resume);
|
||||
typedef void (*oz_app_stop_fn_t)(struct oz_pd *pd, int pause);
|
||||
typedef void (*oz_app_rx_fn_t)(struct oz_pd *pd, struct oz_elt *elt);
|
||||
typedef int (*oz_app_hearbeat_fn_t)(struct oz_pd *pd);
|
||||
typedef void (*oz_app_farewell_fn_t)(struct oz_pd *pd, u8 ep_num,
|
||||
u8 *data, u8 len);
|
||||
|
||||
struct oz_app_if {
|
||||
oz_app_init_fn_t init;
|
||||
oz_app_term_fn_t term;
|
||||
oz_app_start_fn_t start;
|
||||
oz_app_stop_fn_t stop;
|
||||
oz_app_rx_fn_t rx;
|
||||
oz_app_hearbeat_fn_t heartbeat;
|
||||
oz_app_farewell_fn_t farewell;
|
||||
int app_id;
|
||||
};
|
||||
|
||||
int oz_protocol_init(char *devs);
|
||||
void oz_protocol_term(void);
|
||||
int oz_get_pd_list(struct oz_mac_addr *addr, int max_count);
|
||||
void oz_app_enable(int app_id, int enable);
|
||||
struct oz_pd *oz_pd_find(u8 *mac_addr);
|
||||
void oz_binding_add(char *net_dev);
|
||||
void oz_binding_remove(char *net_dev);
|
||||
void oz_timer_add(struct oz_pd *pd, int type, unsigned long due_time,
|
||||
int remove);
|
||||
void oz_timer_delete(struct oz_pd *pd, int type);
|
||||
void oz_pd_request_heartbeat(struct oz_pd *pd);
|
||||
void oz_polling_lock_bh(void);
|
||||
void oz_polling_unlock_bh(void);
|
||||
|
||||
#endif /* _OZPROTO_H */
|
||||
372
drivers/staging/ozwpan/ozprotocol.h
Normal file
372
drivers/staging/ozwpan/ozprotocol.h
Normal file
@ -0,0 +1,372 @@
|
||||
/* -----------------------------------------------------------------------------
|
||||
* Copyright (c) 2011 Ozmo Inc
|
||||
* Released under the GNU General Public License Version 2 (GPLv2).
|
||||
* -----------------------------------------------------------------------------
|
||||
*/
|
||||
#ifndef _OZPROTOCOL_H
|
||||
#define _OZPROTOCOL_H
|
||||
|
||||
#define PACKED __packed
|
||||
|
||||
#define OZ_ETHERTYPE 0x892e
|
||||
|
||||
/* Status codes
|
||||
*/
|
||||
#define OZ_STATUS_SUCCESS 0
|
||||
#define OZ_STATUS_INVALID_PARAM 1
|
||||
#define OZ_STATUS_TOO_MANY_PDS 2
|
||||
#define OZ_STATUS_NOT_ALLOWED 4
|
||||
#define OZ_STATUS_SESSION_MISMATCH 5
|
||||
#define OZ_STATUS_SESSION_TEARDOWN 6
|
||||
|
||||
/* This is the generic element header.
|
||||
Every element starts with this.
|
||||
*/
|
||||
struct oz_elt {
|
||||
u8 type;
|
||||
u8 length;
|
||||
} PACKED;
|
||||
|
||||
#define oz_next_elt(__elt) \
|
||||
(struct oz_elt *)((u8 *)((__elt) + 1) + (__elt)->length)
|
||||
|
||||
/* Protocol element IDs.
|
||||
*/
|
||||
#define OZ_ELT_CONNECT_REQ 0x06
|
||||
#define OZ_ELT_CONNECT_RSP 0x07
|
||||
#define OZ_ELT_DISCONNECT 0x08
|
||||
#define OZ_ELT_UPDATE_PARAM_REQ 0x11
|
||||
#define OZ_ELT_FAREWELL_REQ 0x12
|
||||
#define OZ_ELT_APP_DATA 0x31
|
||||
|
||||
/* This is the Ozmo header which is the first Ozmo specific part
|
||||
* of a frame and comes after the MAC header.
|
||||
*/
|
||||
struct oz_hdr {
|
||||
u8 control;
|
||||
u8 last_pkt_num;
|
||||
u32 pkt_num;
|
||||
} PACKED;
|
||||
|
||||
#define OZ_PROTOCOL_VERSION 0x1
|
||||
/* Bits in the control field. */
|
||||
#define OZ_VERSION_MASK 0xc
|
||||
#define OZ_VERSION_SHIFT 2
|
||||
#define OZ_F_ACK 0x10
|
||||
#define OZ_F_ISOC 0x20
|
||||
#define OZ_F_MORE_DATA 0x40
|
||||
#define OZ_F_ACK_REQUESTED 0x80
|
||||
|
||||
#define oz_get_prot_ver(__x) (((__x) & OZ_VERSION_MASK) >> OZ_VERSION_SHIFT)
|
||||
|
||||
/* Used to select the bits of packet number to put in the last_pkt_num.
|
||||
*/
|
||||
#define OZ_LAST_PN_MASK 0x00ff
|
||||
|
||||
#define OZ_LAST_PN_HALF_CYCLE 127
|
||||
|
||||
/* Connect request data structure.
|
||||
*/
|
||||
struct oz_elt_connect_req {
|
||||
u8 mode;
|
||||
u8 resv1[16];
|
||||
u8 pd_info;
|
||||
u8 session_id;
|
||||
u8 presleep;
|
||||
u8 resv2;
|
||||
u8 host_vendor;
|
||||
u8 keep_alive;
|
||||
u16 apps;
|
||||
u8 max_len_div16;
|
||||
u8 ms_per_isoc;
|
||||
u8 resv3[2];
|
||||
} PACKED;
|
||||
|
||||
/* mode field bits.
|
||||
*/
|
||||
#define OZ_MODE_POLLED 0x0
|
||||
#define OZ_MODE_TRIGGERED 0x1
|
||||
#define OZ_MODE_MASK 0xf
|
||||
#define OZ_F_ISOC_NO_ELTS 0x40
|
||||
#define OZ_F_ISOC_ANYTIME 0x80
|
||||
|
||||
/* Keep alive field.
|
||||
*/
|
||||
#define OZ_KALIVE_TYPE_MASK 0xc0
|
||||
#define OZ_KALIVE_VALUE_MASK 0x3f
|
||||
#define OZ_KALIVE_SPECIAL 0x00
|
||||
#define OZ_KALIVE_SECS 0x40
|
||||
#define OZ_KALIVE_MINS 0x80
|
||||
#define OZ_KALIVE_HOURS 0xc0
|
||||
|
||||
/* Connect response data structure.
|
||||
*/
|
||||
struct oz_elt_connect_rsp {
|
||||
u8 mode;
|
||||
u8 status;
|
||||
u8 resv1[3];
|
||||
u8 session_id;
|
||||
u16 apps;
|
||||
u32 resv2;
|
||||
} PACKED;
|
||||
|
||||
struct oz_elt_farewell {
|
||||
u8 ep_num;
|
||||
u8 index;
|
||||
u8 report[1];
|
||||
} PACKED;
|
||||
|
||||
struct oz_elt_update_param {
|
||||
u8 resv1[16];
|
||||
u8 presleep;
|
||||
u8 resv2;
|
||||
u8 host_vendor;
|
||||
u8 keepalive;
|
||||
} PACKED;
|
||||
|
||||
/* Header common to all application elements.
|
||||
*/
|
||||
struct oz_app_hdr {
|
||||
u8 app_id;
|
||||
u8 elt_seq_num;
|
||||
} PACKED;
|
||||
|
||||
/* Values for app_id.
|
||||
*/
|
||||
#define OZ_APPID_USB 0x1
|
||||
#define OZ_APPID_UNUSED1 0x2
|
||||
#define OZ_APPID_UNUSED2 0x3
|
||||
#define OZ_APPID_SERIAL 0x4
|
||||
#define OZ_APPID_MAX OZ_APPID_SERIAL
|
||||
#define OZ_NB_APPS (OZ_APPID_MAX+1)
|
||||
|
||||
/* USB header common to all elements for the USB application.
|
||||
* This header extends the oz_app_hdr and comes directly after
|
||||
* the element header in a USB application.
|
||||
*/
|
||||
struct oz_usb_hdr {
|
||||
u8 app_id;
|
||||
u8 elt_seq_num;
|
||||
u8 type;
|
||||
} PACKED;
|
||||
|
||||
|
||||
|
||||
/* USB requests element subtypes (type field of hs_usb_hdr).
|
||||
*/
|
||||
#define OZ_GET_DESC_REQ 1
|
||||
#define OZ_GET_DESC_RSP 2
|
||||
#define OZ_SET_CONFIG_REQ 3
|
||||
#define OZ_SET_CONFIG_RSP 4
|
||||
#define OZ_SET_INTERFACE_REQ 5
|
||||
#define OZ_SET_INTERFACE_RSP 6
|
||||
#define OZ_VENDOR_CLASS_REQ 7
|
||||
#define OZ_VENDOR_CLASS_RSP 8
|
||||
#define OZ_GET_STATUS_REQ 9
|
||||
#define OZ_GET_STATUS_RSP 10
|
||||
#define OZ_CLEAR_FEATURE_REQ 11
|
||||
#define OZ_CLEAR_FEATURE_RSP 12
|
||||
#define OZ_SET_FEATURE_REQ 13
|
||||
#define OZ_SET_FEATURE_RSP 14
|
||||
#define OZ_GET_CONFIGURATION_REQ 15
|
||||
#define OZ_GET_CONFIGURATION_RSP 16
|
||||
#define OZ_GET_INTERFACE_REQ 17
|
||||
#define OZ_GET_INTERFACE_RSP 18
|
||||
#define OZ_SYNCH_FRAME_REQ 19
|
||||
#define OZ_SYNCH_FRAME_RSP 20
|
||||
#define OZ_USB_ENDPOINT_DATA 23
|
||||
|
||||
#define OZ_REQD_D2H 0x80
|
||||
|
||||
struct oz_get_desc_req {
|
||||
u8 app_id;
|
||||
u8 elt_seq_num;
|
||||
u8 type;
|
||||
u8 req_id;
|
||||
u16 offset;
|
||||
u16 size;
|
||||
u8 req_type;
|
||||
u8 desc_type;
|
||||
u16 w_index;
|
||||
u8 index;
|
||||
} PACKED;
|
||||
|
||||
/* Values for desc_type field.
|
||||
*/
|
||||
#define OZ_DESC_DEVICE 0x01
|
||||
#define OZ_DESC_CONFIG 0x02
|
||||
#define OZ_DESC_STRING 0x03
|
||||
|
||||
/* Values for req_type field.
|
||||
*/
|
||||
#define OZ_RECP_MASK 0x1F
|
||||
#define OZ_RECP_DEVICE 0x00
|
||||
#define OZ_RECP_INTERFACE 0x01
|
||||
#define OZ_RECP_ENDPOINT 0x02
|
||||
|
||||
#define OZ_REQT_MASK 0x60
|
||||
#define OZ_REQT_STD 0x00
|
||||
#define OZ_REQT_CLASS 0x20
|
||||
#define OZ_REQT_VENDOR 0x40
|
||||
|
||||
struct oz_get_desc_rsp {
|
||||
u8 app_id;
|
||||
u8 elt_seq_num;
|
||||
u8 type;
|
||||
u8 req_id;
|
||||
u16 offset;
|
||||
u16 total_size;
|
||||
u8 rcode;
|
||||
u8 data[1];
|
||||
} PACKED;
|
||||
|
||||
struct oz_feature_req {
|
||||
u8 app_id;
|
||||
u8 elt_seq_num;
|
||||
u8 type;
|
||||
u8 req_id;
|
||||
u8 recipient;
|
||||
u8 index;
|
||||
u16 feature;
|
||||
} PACKED;
|
||||
|
||||
struct oz_feature_rsp {
|
||||
u8 app_id;
|
||||
u8 elt_seq_num;
|
||||
u8 type;
|
||||
u8 req_id;
|
||||
u8 rcode;
|
||||
} PACKED;
|
||||
|
||||
struct oz_set_config_req {
|
||||
u8 app_id;
|
||||
u8 elt_seq_num;
|
||||
u8 type;
|
||||
u8 req_id;
|
||||
u8 index;
|
||||
} PACKED;
|
||||
|
||||
struct oz_set_config_rsp {
|
||||
u8 app_id;
|
||||
u8 elt_seq_num;
|
||||
u8 type;
|
||||
u8 req_id;
|
||||
u8 rcode;
|
||||
} PACKED;
|
||||
|
||||
struct oz_set_interface_req {
|
||||
u8 app_id;
|
||||
u8 elt_seq_num;
|
||||
u8 type;
|
||||
u8 req_id;
|
||||
u8 index;
|
||||
u8 alternative;
|
||||
} PACKED;
|
||||
|
||||
struct oz_set_interface_rsp {
|
||||
u8 app_id;
|
||||
u8 elt_seq_num;
|
||||
u8 type;
|
||||
u8 req_id;
|
||||
u8 rcode;
|
||||
} PACKED;
|
||||
|
||||
struct oz_get_interface_req {
|
||||
u8 app_id;
|
||||
u8 elt_seq_num;
|
||||
u8 type;
|
||||
u8 req_id;
|
||||
u8 index;
|
||||
} PACKED;
|
||||
|
||||
struct oz_get_interface_rsp {
|
||||
u8 app_id;
|
||||
u8 elt_seq_num;
|
||||
u8 type;
|
||||
u8 req_id;
|
||||
u8 rcode;
|
||||
u8 alternative;
|
||||
} PACKED;
|
||||
|
||||
struct oz_vendor_class_req {
|
||||
u8 app_id;
|
||||
u8 elt_seq_num;
|
||||
u8 type;
|
||||
u8 req_id;
|
||||
u8 req_type;
|
||||
u8 request;
|
||||
u16 value;
|
||||
u16 index;
|
||||
u8 data[1];
|
||||
} PACKED;
|
||||
|
||||
struct oz_vendor_class_rsp {
|
||||
u8 app_id;
|
||||
u8 elt_seq_num;
|
||||
u8 type;
|
||||
u8 req_id;
|
||||
u8 rcode;
|
||||
u8 data[1];
|
||||
} PACKED;
|
||||
|
||||
struct oz_data {
|
||||
u8 app_id;
|
||||
u8 elt_seq_num;
|
||||
u8 type;
|
||||
u8 endpoint;
|
||||
u8 format;
|
||||
} PACKED;
|
||||
|
||||
struct oz_isoc_fixed {
|
||||
u8 app_id;
|
||||
u8 elt_seq_num;
|
||||
u8 type;
|
||||
u8 endpoint;
|
||||
u8 format;
|
||||
u8 unit_size;
|
||||
u8 frame_number;
|
||||
u8 data[1];
|
||||
} PACKED;
|
||||
|
||||
struct oz_multiple_fixed {
|
||||
u8 app_id;
|
||||
u8 elt_seq_num;
|
||||
u8 type;
|
||||
u8 endpoint;
|
||||
u8 format;
|
||||
u8 unit_size;
|
||||
u8 data[1];
|
||||
} PACKED;
|
||||
|
||||
struct oz_fragmented {
|
||||
u8 app_id;
|
||||
u8 elt_seq_num;
|
||||
u8 type;
|
||||
u8 endpoint;
|
||||
u8 format;
|
||||
u16 total_size;
|
||||
u16 offset;
|
||||
u8 data[1];
|
||||
} PACKED;
|
||||
|
||||
/* Note: the following does not get packaged in an element in the same way
|
||||
* that other data formats are packaged. Instead the data is put in a frame
|
||||
* directly after the oz_header and is the only permitted data in such a
|
||||
* frame. The length of the data is directly determined from the frame size.
|
||||
*/
|
||||
struct oz_isoc_large {
|
||||
u8 endpoint;
|
||||
u8 format;
|
||||
u8 ms_data;
|
||||
u8 frame_number;
|
||||
} PACKED;
|
||||
|
||||
#define OZ_DATA_F_TYPE_MASK 0xF
|
||||
#define OZ_DATA_F_MULTIPLE_FIXED 0x1
|
||||
#define OZ_DATA_F_MULTIPLE_VAR 0x2
|
||||
#define OZ_DATA_F_ISOC_FIXED 0x3
|
||||
#define OZ_DATA_F_ISOC_VAR 0x4
|
||||
#define OZ_DATA_F_FRAGMENTED 0x5
|
||||
#define OZ_DATA_F_ISOC_LARGE 0x7
|
||||
|
||||
#endif /* _OZPROTOCOL_H */
|
||||
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