2012-05-15 04:20:36 +00:00
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/*
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* Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/version.h>
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#include <linux/mmc/core.h>
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#include <linux/mmc/card.h>
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#include <linux/mmc/sdio_func.h>
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#include <linux/mmc/sdio_ids.h>
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#include "gdm_sdio.h"
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#include "gdm_wimax.h"
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#include "sdio_boot.h"
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#include "hci.h"
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#define TYPE_A_HEADER_SIZE 4
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#define TYPE_A_LOOKAHEAD_SIZE 16
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#define MAX_NR_RX_BUF 4
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#define SDU_TX_BUF_SIZE 2048
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#define TX_BUF_SIZE 2048
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#define TX_CHUNK_SIZE (2048 - TYPE_A_HEADER_SIZE)
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#define RX_BUF_SIZE (25*1024)
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#define TX_HZ 2000
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#define TX_INTERVAL (1000000/TX_HZ)
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/*#define DEBUG*/
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static int init_sdio(struct sdiowm_dev *sdev);
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static void release_sdio(struct sdiowm_dev *sdev);
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#ifdef DEBUG
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static void hexdump(char *title, u8 *data, int len)
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{
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int i;
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printk(KERN_DEBUG "%s: length = %d\n", title, len);
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for (i = 0; i < len; i++) {
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printk(KERN_DEBUG "%02x ", data[i]);
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if ((i & 0xf) == 0xf)
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printk(KERN_DEBUG "\n");
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}
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printk(KERN_DEBUG "\n");
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}
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#endif
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static struct sdio_tx *alloc_tx_struct(struct tx_cxt *tx)
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{
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struct sdio_tx *t = NULL;
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t = kmalloc(sizeof(*t), GFP_ATOMIC);
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if (t == NULL)
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goto out;
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memset(t, 0, sizeof(*t));
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t->buf = kmalloc(TX_BUF_SIZE, GFP_ATOMIC);
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if (t->buf == NULL)
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goto out;
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t->tx_cxt = tx;
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return t;
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out:
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if (t) {
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kfree(t->buf);
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kfree(t);
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}
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return NULL;
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}
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static void free_tx_struct(struct sdio_tx *t)
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{
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if (t) {
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kfree(t->buf);
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kfree(t);
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}
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}
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static struct sdio_rx *alloc_rx_struct(struct rx_cxt *rx)
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{
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struct sdio_rx *r = NULL;
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r = kmalloc(sizeof(*r), GFP_ATOMIC);
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if (r == NULL)
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goto out;
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memset(r, 0, sizeof(*r));
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r->rx_cxt = rx;
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return r;
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out:
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kfree(r);
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return NULL;
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}
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static void free_rx_struct(struct sdio_rx *r)
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{
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kfree(r);
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}
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/* Before this function is called, spin lock should be locked. */
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static struct sdio_tx *get_tx_struct(struct tx_cxt *tx, int *no_spc)
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{
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struct sdio_tx *t;
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if (list_empty(&tx->free_list))
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return NULL;
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t = list_entry(tx->free_list.prev, struct sdio_tx, list);
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list_del(&t->list);
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*no_spc = list_empty(&tx->free_list) ? 1 : 0;
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return t;
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}
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/* Before this function is called, spin lock should be locked. */
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static void put_tx_struct(struct tx_cxt *tx, struct sdio_tx *t)
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{
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list_add_tail(&t->list, &tx->free_list);
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}
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/* Before this function is called, spin lock should be locked. */
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static struct sdio_rx *get_rx_struct(struct rx_cxt *rx)
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{
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struct sdio_rx *r;
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if (list_empty(&rx->free_list))
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return NULL;
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r = list_entry(rx->free_list.prev, struct sdio_rx, list);
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list_del(&r->list);
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return r;
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}
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/* Before this function is called, spin lock should be locked. */
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static void put_rx_struct(struct rx_cxt *rx, struct sdio_rx *r)
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{
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list_add_tail(&r->list, &rx->free_list);
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}
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static int init_sdio(struct sdiowm_dev *sdev)
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{
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int ret = 0, i;
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struct tx_cxt *tx = &sdev->tx;
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struct rx_cxt *rx = &sdev->rx;
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struct sdio_tx *t;
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struct sdio_rx *r;
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INIT_LIST_HEAD(&tx->free_list);
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INIT_LIST_HEAD(&tx->sdu_list);
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INIT_LIST_HEAD(&tx->hci_list);
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spin_lock_init(&tx->lock);
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tx->sdu_buf = kmalloc(SDU_TX_BUF_SIZE, GFP_KERNEL);
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if (tx->sdu_buf == NULL) {
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printk(KERN_ERR "Failed to allocate SDU tx buffer.\n");
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goto fail;
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}
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for (i = 0; i < MAX_NR_SDU_BUF; i++) {
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t = alloc_tx_struct(tx);
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if (t == NULL) {
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ret = -ENOMEM;
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goto fail;
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}
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list_add(&t->list, &tx->free_list);
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}
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INIT_LIST_HEAD(&rx->free_list);
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INIT_LIST_HEAD(&rx->req_list);
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spin_lock_init(&rx->lock);
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for (i = 0; i < MAX_NR_RX_BUF; i++) {
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r = alloc_rx_struct(rx);
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if (r == NULL) {
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ret = -ENOMEM;
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goto fail;
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}
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list_add(&r->list, &rx->free_list);
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}
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rx->rx_buf = kmalloc(RX_BUF_SIZE, GFP_KERNEL);
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if (rx->rx_buf == NULL) {
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printk(KERN_ERR "Failed to allocate rx buffer.\n");
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goto fail;
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}
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return 0;
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fail:
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release_sdio(sdev);
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return ret;
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}
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static void release_sdio(struct sdiowm_dev *sdev)
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{
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struct tx_cxt *tx = &sdev->tx;
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struct rx_cxt *rx = &sdev->rx;
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struct sdio_tx *t, *t_next;
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struct sdio_rx *r, *r_next;
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kfree(tx->sdu_buf);
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list_for_each_entry_safe(t, t_next, &tx->free_list, list) {
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list_del(&t->list);
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free_tx_struct(t);
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}
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list_for_each_entry_safe(t, t_next, &tx->sdu_list, list) {
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list_del(&t->list);
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free_tx_struct(t);
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}
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list_for_each_entry_safe(t, t_next, &tx->hci_list, list) {
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list_del(&t->list);
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free_tx_struct(t);
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}
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kfree(rx->rx_buf);
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list_for_each_entry_safe(r, r_next, &rx->free_list, list) {
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list_del(&r->list);
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free_rx_struct(r);
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}
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list_for_each_entry_safe(r, r_next, &rx->req_list, list) {
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list_del(&r->list);
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free_rx_struct(r);
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}
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}
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static void send_sdio_pkt(struct sdio_func *func, u8 *data, int len)
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{
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int n, blocks, ret, remain;
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sdio_claim_host(func);
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blocks = len / func->cur_blksize;
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n = blocks * func->cur_blksize;
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if (blocks) {
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ret = sdio_memcpy_toio(func, 0, data, n);
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if (ret < 0) {
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if (ret != -ENOMEDIUM)
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printk(KERN_ERR "gdmwms: %s error: ret = %d\n",
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__func__, ret);
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goto end_io;
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}
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}
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remain = len - n;
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remain = (remain + 3) & ~3;
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if (remain) {
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ret = sdio_memcpy_toio(func, 0, data + n, remain);
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if (ret < 0) {
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if (ret != -ENOMEDIUM)
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printk(KERN_ERR "gdmwms: %s error: ret = %d\n",
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__func__, ret);
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goto end_io;
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}
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}
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end_io:
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sdio_release_host(func);
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}
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static void send_sdu(struct sdio_func *func, struct tx_cxt *tx)
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{
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struct list_head *l, *next;
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struct hci_s *hci;
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struct sdio_tx *t;
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int pos, len, i, estlen, aggr_num = 0, aggr_len;
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u8 *buf;
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unsigned long flags;
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spin_lock_irqsave(&tx->lock, flags);
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pos = TYPE_A_HEADER_SIZE + HCI_HEADER_SIZE;
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list_for_each_entry(t, &tx->sdu_list, list) {
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estlen = ((t->len + 3) & ~3) + 4;
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if ((pos + estlen) > SDU_TX_BUF_SIZE)
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break;
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aggr_num++;
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memcpy(tx->sdu_buf + pos, t->buf, t->len);
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memset(tx->sdu_buf + pos + t->len, 0, estlen - t->len);
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pos += estlen;
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}
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aggr_len = pos;
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hci = (struct hci_s *)(tx->sdu_buf + TYPE_A_HEADER_SIZE);
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hci->cmd_evt = H2B(WIMAX_TX_SDU_AGGR);
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hci->length = H2B(aggr_len - TYPE_A_HEADER_SIZE - HCI_HEADER_SIZE);
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spin_unlock_irqrestore(&tx->lock, flags);
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#ifdef DEBUG
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hexdump("sdio_send", tx->sdu_buf + TYPE_A_HEADER_SIZE,
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aggr_len - TYPE_A_HEADER_SIZE);
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#endif
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for (pos = TYPE_A_HEADER_SIZE; pos < aggr_len; pos += TX_CHUNK_SIZE) {
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len = aggr_len - pos;
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len = len > TX_CHUNK_SIZE ? TX_CHUNK_SIZE : len;
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buf = tx->sdu_buf + pos - TYPE_A_HEADER_SIZE;
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buf[0] = len & 0xff;
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buf[1] = (len >> 8) & 0xff;
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buf[2] = (len >> 16) & 0xff;
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buf[3] = (pos + len) >= aggr_len ? 0 : 1;
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send_sdio_pkt(func, buf, len + TYPE_A_HEADER_SIZE);
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}
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spin_lock_irqsave(&tx->lock, flags);
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for (l = tx->sdu_list.next, i = 0; i < aggr_num; i++, l = next) {
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next = l->next;
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t = list_entry(l, struct sdio_tx, list);
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if (t->callback)
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t->callback(t->cb_data);
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list_del(l);
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put_tx_struct(t->tx_cxt, t);
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}
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do_gettimeofday(&tx->sdu_stamp);
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spin_unlock_irqrestore(&tx->lock, flags);
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}
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static void send_hci(struct sdio_func *func, struct tx_cxt *tx,
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struct sdio_tx *t)
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{
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unsigned long flags;
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#ifdef DEBUG
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hexdump("sdio_send", t->buf + TYPE_A_HEADER_SIZE,
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t->len - TYPE_A_HEADER_SIZE);
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#endif
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send_sdio_pkt(func, t->buf, t->len);
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spin_lock_irqsave(&tx->lock, flags);
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if (t->callback)
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t->callback(t->cb_data);
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free_tx_struct(t);
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spin_unlock_irqrestore(&tx->lock, flags);
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}
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static void do_tx(struct work_struct *work)
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{
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struct sdiowm_dev *sdev = container_of(work, struct sdiowm_dev, ws);
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struct sdio_func *func = sdev->func;
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struct tx_cxt *tx = &sdev->tx;
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struct sdio_tx *t = NULL;
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struct timeval now, *before;
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int is_sdu = 0;
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long diff;
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unsigned long flags;
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spin_lock_irqsave(&tx->lock, flags);
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if (!tx->can_send) {
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|
|
spin_unlock_irqrestore(&tx->lock, flags);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!list_empty(&tx->hci_list)) {
|
|
|
|
t = list_entry(tx->hci_list.next, struct sdio_tx, list);
|
|
|
|
list_del(&t->list);
|
|
|
|
is_sdu = 0;
|
|
|
|
} else if (!tx->stop_sdu_tx && !list_empty(&tx->sdu_list)) {
|
|
|
|
do_gettimeofday(&now);
|
|
|
|
before = &tx->sdu_stamp;
|
|
|
|
|
|
|
|
diff = (now.tv_sec - before->tv_sec) * 1000000 +
|
|
|
|
(now.tv_usec - before->tv_usec);
|
|
|
|
if (diff >= 0 && diff < TX_INTERVAL) {
|
|
|
|
schedule_work(&sdev->ws);
|
|
|
|
spin_unlock_irqrestore(&tx->lock, flags);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
is_sdu = 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!is_sdu && t == NULL) {
|
|
|
|
spin_unlock_irqrestore(&tx->lock, flags);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
tx->can_send = 0;
|
|
|
|
|
|
|
|
spin_unlock_irqrestore(&tx->lock, flags);
|
|
|
|
|
|
|
|
if (is_sdu)
|
|
|
|
send_sdu(func, tx);
|
|
|
|
else
|
|
|
|
send_hci(func, tx, t);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int gdm_sdio_send(void *priv_dev, void *data, int len,
|
|
|
|
void (*cb)(void *data), void *cb_data)
|
|
|
|
{
|
|
|
|
struct sdiowm_dev *sdev = priv_dev;
|
|
|
|
struct tx_cxt *tx = &sdev->tx;
|
|
|
|
struct sdio_tx *t;
|
|
|
|
u8 *pkt = data;
|
|
|
|
int no_spc = 0;
|
|
|
|
u16 cmd_evt;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
BUG_ON(len > TX_BUF_SIZE - TYPE_A_HEADER_SIZE);
|
|
|
|
|
|
|
|
spin_lock_irqsave(&tx->lock, flags);
|
|
|
|
|
|
|
|
cmd_evt = (pkt[0] << 8) | pkt[1];
|
|
|
|
if (cmd_evt == WIMAX_TX_SDU) {
|
|
|
|
t = get_tx_struct(tx, &no_spc);
|
|
|
|
if (t == NULL) {
|
|
|
|
/* This case must not happen. */
|
|
|
|
spin_unlock_irqrestore(&tx->lock, flags);
|
|
|
|
return -ENOSPC;
|
|
|
|
}
|
|
|
|
list_add_tail(&t->list, &tx->sdu_list);
|
|
|
|
|
|
|
|
memcpy(t->buf, data, len);
|
|
|
|
|
|
|
|
t->len = len;
|
|
|
|
t->callback = cb;
|
|
|
|
t->cb_data = cb_data;
|
|
|
|
} else {
|
|
|
|
t = alloc_tx_struct(tx);
|
|
|
|
if (t == NULL) {
|
|
|
|
spin_unlock_irqrestore(&tx->lock, flags);
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
list_add_tail(&t->list, &tx->hci_list);
|
|
|
|
|
|
|
|
t->buf[0] = len & 0xff;
|
|
|
|
t->buf[1] = (len >> 8) & 0xff;
|
|
|
|
t->buf[2] = (len >> 16) & 0xff;
|
|
|
|
t->buf[3] = 2;
|
|
|
|
memcpy(t->buf + TYPE_A_HEADER_SIZE, data, len);
|
|
|
|
|
|
|
|
t->len = len + TYPE_A_HEADER_SIZE;
|
|
|
|
t->callback = cb;
|
|
|
|
t->cb_data = cb_data;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (tx->can_send)
|
|
|
|
schedule_work(&sdev->ws);
|
|
|
|
|
|
|
|
spin_unlock_irqrestore(&tx->lock, flags);
|
|
|
|
|
|
|
|
if (no_spc)
|
|
|
|
return -ENOSPC;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Handle the HCI, WIMAX_SDU_TX_FLOW.
|
|
|
|
*/
|
|
|
|
static int control_sdu_tx_flow(struct sdiowm_dev *sdev, u8 *hci_data, int len)
|
|
|
|
{
|
|
|
|
struct tx_cxt *tx = &sdev->tx;
|
|
|
|
u16 cmd_evt;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&tx->lock, flags);
|
|
|
|
|
|
|
|
cmd_evt = (hci_data[0] << 8) | (hci_data[1]);
|
|
|
|
if (cmd_evt != WIMAX_SDU_TX_FLOW)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
if (hci_data[4] == 0) {
|
|
|
|
#ifdef DEBUG
|
|
|
|
printk(KERN_DEBUG "WIMAX ==> STOP SDU TX\n");
|
|
|
|
#endif
|
|
|
|
tx->stop_sdu_tx = 1;
|
|
|
|
} else if (hci_data[4] == 1) {
|
|
|
|
#ifdef DEBUG
|
|
|
|
printk(KERN_DEBUG "WIMAX ==> START SDU TX\n");
|
|
|
|
#endif
|
|
|
|
tx->stop_sdu_tx = 0;
|
|
|
|
if (tx->can_send)
|
|
|
|
schedule_work(&sdev->ws);
|
|
|
|
/*
|
|
|
|
* If free buffer for sdu tx doesn't exist, then tx queue
|
|
|
|
* should not be woken. For this reason, don't pass the command,
|
|
|
|
* START_SDU_TX.
|
|
|
|
*/
|
|
|
|
if (list_empty(&tx->free_list))
|
|
|
|
len = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
out:
|
|
|
|
spin_unlock_irqrestore(&tx->lock, flags);
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void gdm_sdio_irq(struct sdio_func *func)
|
|
|
|
{
|
|
|
|
struct phy_dev *phy_dev = sdio_get_drvdata(func);
|
|
|
|
struct sdiowm_dev *sdev = phy_dev->priv_dev;
|
|
|
|
struct tx_cxt *tx = &sdev->tx;
|
|
|
|
struct rx_cxt *rx = &sdev->rx;
|
|
|
|
struct sdio_rx *r;
|
|
|
|
unsigned long flags;
|
|
|
|
u8 val, hdr[TYPE_A_LOOKAHEAD_SIZE], *buf;
|
|
|
|
u32 len, blocks, n;
|
|
|
|
int ret, remain;
|
|
|
|
|
|
|
|
/* Check interrupt */
|
|
|
|
val = sdio_readb(func, 0x13, &ret);
|
|
|
|
if (val & 0x01)
|
|
|
|
sdio_writeb(func, 0x01, 0x13, &ret); /* clear interrupt */
|
|
|
|
else
|
|
|
|
return;
|
|
|
|
|
|
|
|
ret = sdio_memcpy_fromio(func, hdr, 0x0, TYPE_A_LOOKAHEAD_SIZE);
|
|
|
|
if (ret) {
|
|
|
|
printk(KERN_ERR "Cannot read from function %d\n", func->num);
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
|
|
|
len = (hdr[2] << 16) | (hdr[1] << 8) | hdr[0];
|
|
|
|
if (len > (RX_BUF_SIZE - TYPE_A_HEADER_SIZE)) {
|
|
|
|
printk(KERN_ERR "Too big Type-A size: %d\n", len);
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (hdr[3] == 1) { /* Ack */
|
|
|
|
#ifdef DEBUG
|
|
|
|
u32 *ack_seq = (u32 *)&hdr[4];
|
|
|
|
#endif
|
|
|
|
spin_lock_irqsave(&tx->lock, flags);
|
|
|
|
tx->can_send = 1;
|
|
|
|
|
|
|
|
if (!list_empty(&tx->sdu_list) || !list_empty(&tx->hci_list))
|
|
|
|
schedule_work(&sdev->ws);
|
|
|
|
spin_unlock_irqrestore(&tx->lock, flags);
|
|
|
|
#ifdef DEBUG
|
|
|
|
printk(KERN_DEBUG "Ack... %0x\n", ntohl(*ack_seq));
|
|
|
|
#endif
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
|
|
|
memcpy(rx->rx_buf, hdr + TYPE_A_HEADER_SIZE,
|
|
|
|
TYPE_A_LOOKAHEAD_SIZE - TYPE_A_HEADER_SIZE);
|
|
|
|
|
|
|
|
buf = rx->rx_buf + TYPE_A_LOOKAHEAD_SIZE - TYPE_A_HEADER_SIZE;
|
|
|
|
remain = len - TYPE_A_LOOKAHEAD_SIZE + TYPE_A_HEADER_SIZE;
|
|
|
|
if (remain <= 0)
|
|
|
|
goto end_io;
|
|
|
|
|
|
|
|
blocks = remain / func->cur_blksize;
|
|
|
|
|
|
|
|
if (blocks) {
|
|
|
|
n = blocks * func->cur_blksize;
|
|
|
|
ret = sdio_memcpy_fromio(func, buf, 0x0, n);
|
|
|
|
if (ret) {
|
|
|
|
printk(KERN_ERR "Cannot read from function %d\n",
|
|
|
|
func->num);
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
buf += n;
|
|
|
|
remain -= n;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (remain) {
|
|
|
|
ret = sdio_memcpy_fromio(func, buf, 0x0, remain);
|
|
|
|
if (ret) {
|
|
|
|
printk(KERN_ERR "Cannot read from function %d\n",
|
|
|
|
func->num);
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
end_io:
|
|
|
|
#ifdef DEBUG
|
|
|
|
hexdump("sdio_receive", rx->rx_buf, len);
|
|
|
|
#endif
|
|
|
|
len = control_sdu_tx_flow(sdev, rx->rx_buf, len);
|
|
|
|
|
|
|
|
spin_lock_irqsave(&rx->lock, flags);
|
|
|
|
|
|
|
|
if (!list_empty(&rx->req_list)) {
|
|
|
|
r = list_entry(rx->req_list.next, struct sdio_rx, list);
|
|
|
|
spin_unlock_irqrestore(&rx->lock, flags);
|
|
|
|
if (r->callback)
|
|
|
|
r->callback(r->cb_data, rx->rx_buf, len);
|
|
|
|
spin_lock_irqsave(&rx->lock, flags);
|
|
|
|
list_del(&r->list);
|
|
|
|
put_rx_struct(rx, r);
|
|
|
|
}
|
|
|
|
|
|
|
|
spin_unlock_irqrestore(&rx->lock, flags);
|
|
|
|
|
|
|
|
done:
|
|
|
|
sdio_writeb(func, 0x00, 0x10, &ret); /* PCRRT */
|
|
|
|
if (!phy_dev->netdev)
|
2012-05-17 18:15:10 +00:00
|
|
|
register_wimax_device(phy_dev, &func->dev);
|
2012-05-15 04:20:36 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int gdm_sdio_receive(void *priv_dev,
|
|
|
|
void (*cb)(void *cb_data, void *data, int len),
|
|
|
|
void *cb_data)
|
|
|
|
{
|
|
|
|
struct sdiowm_dev *sdev = priv_dev;
|
|
|
|
struct rx_cxt *rx = &sdev->rx;
|
|
|
|
struct sdio_rx *r;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&rx->lock, flags);
|
|
|
|
r = get_rx_struct(rx);
|
|
|
|
if (r == NULL) {
|
|
|
|
spin_unlock_irqrestore(&rx->lock, flags);
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
|
|
|
r->callback = cb;
|
|
|
|
r->cb_data = cb_data;
|
|
|
|
|
|
|
|
list_add_tail(&r->list, &rx->req_list);
|
|
|
|
spin_unlock_irqrestore(&rx->lock, flags);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int sdio_wimax_probe(struct sdio_func *func,
|
|
|
|
const struct sdio_device_id *id)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
struct phy_dev *phy_dev = NULL;
|
|
|
|
struct sdiowm_dev *sdev = NULL;
|
|
|
|
|
|
|
|
printk(KERN_INFO "Found GDM SDIO VID = 0x%04x PID = 0x%04x...\n",
|
|
|
|
func->vendor, func->device);
|
|
|
|
printk(KERN_INFO "GCT WiMax driver version %s\n", DRIVER_VERSION);
|
|
|
|
|
|
|
|
sdio_claim_host(func);
|
|
|
|
sdio_enable_func(func);
|
|
|
|
sdio_claim_irq(func, gdm_sdio_irq);
|
|
|
|
|
|
|
|
ret = sdio_boot(func);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
phy_dev = kmalloc(sizeof(*phy_dev), GFP_KERNEL);
|
|
|
|
if (phy_dev == NULL) {
|
|
|
|
ret = -ENOMEM;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
sdev = kmalloc(sizeof(*sdev), GFP_KERNEL);
|
|
|
|
if (sdev == NULL) {
|
|
|
|
ret = -ENOMEM;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
memset(phy_dev, 0, sizeof(*phy_dev));
|
|
|
|
memset(sdev, 0, sizeof(*sdev));
|
|
|
|
|
|
|
|
phy_dev->priv_dev = (void *)sdev;
|
|
|
|
phy_dev->send_func = gdm_sdio_send;
|
|
|
|
phy_dev->rcv_func = gdm_sdio_receive;
|
|
|
|
|
|
|
|
ret = init_sdio(sdev);
|
|
|
|
if (sdev < 0)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
sdev->func = func;
|
|
|
|
|
|
|
|
sdio_writeb(func, 1, 0x14, &ret); /* Enable interrupt */
|
|
|
|
sdio_release_host(func);
|
|
|
|
|
|
|
|
INIT_WORK(&sdev->ws, do_tx);
|
|
|
|
|
|
|
|
sdio_set_drvdata(func, phy_dev);
|
|
|
|
out:
|
|
|
|
if (ret) {
|
|
|
|
kfree(phy_dev);
|
|
|
|
kfree(sdev);
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void sdio_wimax_remove(struct sdio_func *func)
|
|
|
|
{
|
|
|
|
struct phy_dev *phy_dev = sdio_get_drvdata(func);
|
|
|
|
struct sdiowm_dev *sdev = phy_dev->priv_dev;
|
|
|
|
|
|
|
|
if (phy_dev->netdev)
|
|
|
|
unregister_wimax_device(phy_dev);
|
|
|
|
sdio_claim_host(func);
|
|
|
|
sdio_release_irq(func);
|
|
|
|
sdio_disable_func(func);
|
|
|
|
sdio_release_host(func);
|
|
|
|
release_sdio(sdev);
|
|
|
|
|
|
|
|
kfree(sdev);
|
|
|
|
kfree(phy_dev);
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct sdio_device_id sdio_wimax_ids[] = {
|
|
|
|
{ SDIO_DEVICE(0x0296, 0x5347) },
|
|
|
|
{0}
|
|
|
|
};
|
|
|
|
|
|
|
|
MODULE_DEVICE_TABLE(sdio, sdio_wimax_ids);
|
|
|
|
|
|
|
|
static struct sdio_driver sdio_wimax_driver = {
|
|
|
|
.probe = sdio_wimax_probe,
|
|
|
|
.remove = sdio_wimax_remove,
|
|
|
|
.name = "sdio_wimax",
|
|
|
|
.id_table = sdio_wimax_ids,
|
|
|
|
};
|
|
|
|
|
|
|
|
static int __init sdio_gdm_wimax_init(void)
|
|
|
|
{
|
|
|
|
return sdio_register_driver(&sdio_wimax_driver);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void __exit sdio_gdm_wimax_exit(void)
|
|
|
|
{
|
|
|
|
sdio_unregister_driver(&sdio_wimax_driver);
|
|
|
|
}
|
|
|
|
|
|
|
|
module_init(sdio_gdm_wimax_init);
|
|
|
|
module_exit(sdio_gdm_wimax_exit);
|
|
|
|
|
|
|
|
MODULE_VERSION(DRIVER_VERSION);
|
|
|
|
MODULE_DESCRIPTION("GCT WiMax SDIO Device Driver");
|
|
|
|
MODULE_AUTHOR("Ethan Park");
|
|
|
|
MODULE_LICENSE("GPL");
|