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![Pavel Machek](/assets/img/avatar_default.png)
Add hci_h4p bluetooth driver to staging tree. This device is used for example on Nokia N900 cell phone. Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Pavel Machek <pavel@ucw.cz> Thanks-to: Sebastian Reichel <sre@debian.org> Thanks-to: Joe Perches <joe@perches.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
110 lines
2.7 KiB
C
110 lines
2.7 KiB
C
/*
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* This file is part of Nokia H4P bluetooth driver
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*
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* Copyright (C) 2009 Nokia Corporation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#include <linux/skbuff.h>
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#include <linux/delay.h>
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#include <linux/serial_reg.h>
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#include "hci_h4p.h"
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static struct sk_buff_head *fw_q;
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void hci_h4p_ti1273_parse_fw_event(struct hci_h4p_info *info,
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struct sk_buff *skb)
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{
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struct sk_buff *fw_skb;
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unsigned long flags;
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if (skb->data[5] != 0x00) {
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dev_err(info->dev, "Firmware sending command failed 0x%.2x\n",
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skb->data[5]);
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info->fw_error = -EPROTO;
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}
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kfree_skb(skb);
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fw_skb = skb_dequeue(fw_q);
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if (fw_skb == NULL || info->fw_error) {
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complete(&info->fw_completion);
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return;
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}
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skb_queue_tail(&info->txq, fw_skb);
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spin_lock_irqsave(&info->lock, flags);
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hci_h4p_outb(info, UART_IER, hci_h4p_inb(info, UART_IER) |
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UART_IER_THRI);
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spin_unlock_irqrestore(&info->lock, flags);
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}
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int hci_h4p_ti1273_send_fw(struct hci_h4p_info *info,
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struct sk_buff_head *fw_queue)
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{
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struct sk_buff *skb;
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unsigned long flags, time;
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info->fw_error = 0;
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BT_DBG("Sending firmware");
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time = jiffies;
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fw_q = fw_queue;
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skb = skb_dequeue(fw_queue);
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if (!skb)
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return -ENODATA;
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BT_DBG("Sending commands");
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/* Check if this is bd_address packet */
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init_completion(&info->fw_completion);
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hci_h4p_smart_idle(info, 0);
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skb_queue_tail(&info->txq, skb);
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spin_lock_irqsave(&info->lock, flags);
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hci_h4p_outb(info, UART_IER, hci_h4p_inb(info, UART_IER) |
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UART_IER_THRI);
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spin_unlock_irqrestore(&info->lock, flags);
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if (!wait_for_completion_timeout(&info->fw_completion,
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msecs_to_jiffies(2000))) {
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dev_err(info->dev, "No reply to fw command\n");
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return -ETIMEDOUT;
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}
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if (info->fw_error) {
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dev_err(info->dev, "FW error\n");
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return -EPROTO;
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}
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BT_DBG("Firmware sent in %d msecs",
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jiffies_to_msecs(jiffies-time));
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hci_h4p_set_auto_ctsrts(info, 0, UART_EFR_RTS);
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hci_h4p_set_rts(info, 0);
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hci_h4p_change_speed(info, BC4_MAX_BAUD_RATE);
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if (hci_h4p_wait_for_cts(info, 1, 100)) {
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dev_err(info->dev,
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"cts didn't go down after final speed change\n");
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return -ETIMEDOUT;
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}
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hci_h4p_set_auto_ctsrts(info, 1, UART_EFR_RTS);
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return 0;
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}
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