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path: root/target/linux/omap24xx/patches-2.6.35/400-bluetooth-hci_h4p.patch
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Diffstat (limited to 'target/linux/omap24xx/patches-2.6.35/400-bluetooth-hci_h4p.patch')
-rw-r--r--target/linux/omap24xx/patches-2.6.35/400-bluetooth-hci_h4p.patch1933
1 files changed, 1933 insertions, 0 deletions
diff --git a/target/linux/omap24xx/patches-2.6.35/400-bluetooth-hci_h4p.patch b/target/linux/omap24xx/patches-2.6.35/400-bluetooth-hci_h4p.patch
new file mode 100644
index 0000000000..81301e21f4
--- /dev/null
+++ b/target/linux/omap24xx/patches-2.6.35/400-bluetooth-hci_h4p.patch
@@ -0,0 +1,1933 @@
+Index: linux-2.6.35/drivers/bluetooth/hci_h4p/core.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.35/drivers/bluetooth/hci_h4p/core.c 2010-08-08 12:57:24.000000000 +0200
+@@ -0,0 +1,1023 @@
++/*
++ * This file is part of hci_h4p bluetooth driver
++ *
++ * Copyright (C) 2005, 2006 Nokia Corporation.
++ *
++ * Contact: Ville Tervo <ville.tervo@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
++ * 02110-1301 USA
++ *
++ */
++
++#include <linux/module.h>
++
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/errno.h>
++#include <linux/delay.h>
++#include <linux/spinlock.h>
++#include <linux/serial_reg.h>
++#include <linux/skbuff.h>
++#include <linux/timer.h>
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/clk.h>
++#include <linux/gpio.h>
++
++#include <mach/hardware.h>
++#include <mach/board.h>
++#include <mach/irqs.h>
++//#include <mach/pm.h>
++
++#include <net/bluetooth/bluetooth.h>
++#include <net/bluetooth/hci_core.h>
++#include <net/bluetooth/hci.h>
++
++#include "hci_h4p.h"
++
++#define PM_TIMEOUT 200
++
++struct omap_bluetooth_config {
++ u8 chip_type;
++ u8 bt_wakeup_gpio;
++ u8 host_wakeup_gpio;
++ u8 reset_gpio;
++ u8 bt_uart;
++ u8 bd_addr[6];
++ u8 bt_sysclk;
++};
++
++/* This should be used in function that cannot release clocks */
++static void hci_h4p_set_clk(struct hci_h4p_info *info, int *clock, int enable)
++{
++ unsigned long flags;
++
++ spin_lock_irqsave(&info->clocks_lock, flags);
++ if (enable && !*clock) {
++ NBT_DBG_POWER("Enabling %p\n", clock);
++ clk_enable(info->uart_fclk);
++#ifdef CONFIG_ARCH_OMAP2
++ if (cpu_is_omap24xx()) {
++ clk_enable(info->uart_iclk);
++ //omap2_block_sleep();
++ }
++#endif
++ }
++ if (!enable && *clock) {
++ NBT_DBG_POWER("Disabling %p\n", clock);
++ clk_disable(info->uart_fclk);
++#ifdef CONFIG_ARCH_OMAP2
++ if (cpu_is_omap24xx()) {
++ clk_disable(info->uart_iclk);
++ //omap2_allow_sleep();
++ }
++#endif
++ }
++
++ *clock = enable;
++ spin_unlock_irqrestore(&info->clocks_lock, flags);
++}
++
++/* Power management functions */
++static void hci_h4p_disable_tx(struct hci_h4p_info *info)
++{
++ NBT_DBG_POWER("\n");
++
++ if (!info->pm_enabled)
++ return;
++
++ mod_timer(&info->tx_pm_timer, jiffies + msecs_to_jiffies(PM_TIMEOUT));
++}
++
++static void hci_h4p_enable_tx(struct hci_h4p_info *info)
++{
++ NBT_DBG_POWER("\n");
++
++ if (!info->pm_enabled)
++ return;
++
++ del_timer_sync(&info->tx_pm_timer);
++ if (info->tx_pm_enabled) {
++ info->tx_pm_enabled = 0;
++ hci_h4p_set_clk(info, &info->tx_clocks_en, 1);
++ gpio_set_value(info->bt_wakeup_gpio, 1);
++ }
++}
++
++static void hci_h4p_tx_pm_timer(unsigned long data)
++{
++ struct hci_h4p_info *info;
++
++ NBT_DBG_POWER("\n");
++
++ info = (struct hci_h4p_info *)data;
++
++ if (hci_h4p_inb(info, UART_LSR) & UART_LSR_TEMT) {
++ gpio_set_value(info->bt_wakeup_gpio, 0);
++ hci_h4p_set_clk(info, &info->tx_clocks_en, 0);
++ info->tx_pm_enabled = 1;
++ }
++ else {
++ mod_timer(&info->tx_pm_timer, jiffies + msecs_to_jiffies(PM_TIMEOUT));
++ }
++}
++
++static void hci_h4p_disable_rx(struct hci_h4p_info *info)
++{
++ if (!info->pm_enabled)
++ return;
++
++ mod_timer(&info->rx_pm_timer, jiffies + msecs_to_jiffies(PM_TIMEOUT));
++}
++
++static void hci_h4p_enable_rx(struct hci_h4p_info *info)
++{
++ unsigned long flags;
++
++ if (!info->pm_enabled)
++ return;
++
++ del_timer_sync(&info->rx_pm_timer);
++ spin_lock_irqsave(&info->lock, flags);
++ if (info->rx_pm_enabled) {
++ hci_h4p_set_clk(info, &info->rx_clocks_en, 1);
++ hci_h4p_outb(info, UART_IER, hci_h4p_inb(info, UART_IER) | UART_IER_RDI);
++ __hci_h4p_set_auto_ctsrts(info, 1, UART_EFR_RTS);
++ info->rx_pm_enabled = 0;
++ }
++ spin_unlock_irqrestore(&info->lock, flags);
++}
++
++static void hci_h4p_rx_pm_timer(unsigned long data)
++{
++ unsigned long flags;
++ struct hci_h4p_info *info = (struct hci_h4p_info *)data;
++
++ spin_lock_irqsave(&info->lock, flags);
++ if (!(hci_h4p_inb(info, UART_LSR) & UART_LSR_DR)) {
++ __hci_h4p_set_auto_ctsrts(info, 0, UART_EFR_RTS);
++ hci_h4p_set_rts(info, 0);
++ hci_h4p_outb(info, UART_IER, hci_h4p_inb(info, UART_IER) & ~UART_IER_RDI);
++ hci_h4p_set_clk(info, &info->rx_clocks_en, 0);
++ info->rx_pm_enabled = 1;
++ }
++ else {
++ mod_timer(&info->rx_pm_timer, jiffies + msecs_to_jiffies(PM_TIMEOUT));
++ }
++ spin_unlock_irqrestore(&info->lock, flags);
++}
++
++/* Negotiation functions */
++int hci_h4p_send_alive_packet(struct hci_h4p_info *info)
++{
++ NBT_DBG("Sending alive packet\n");
++
++ if (!info->alive_cmd_skb)
++ return -EINVAL;
++
++ /* Keep reference to buffer so we can reuse it */
++ info->alive_cmd_skb = skb_get(info->alive_cmd_skb);
++
++ skb_queue_tail(&info->txq, info->alive_cmd_skb);
++ tasklet_schedule(&info->tx_task);
++
++ NBT_DBG("Alive packet sent\n");
++
++ return 0;
++}
++
++static void hci_h4p_alive_packet(struct hci_h4p_info *info, struct sk_buff *skb)
++{
++ NBT_DBG("Received alive packet\n");
++ if (skb->data[1] == 0xCC) {
++ complete(&info->init_completion);
++ }
++
++ kfree_skb(skb);
++}
++
++static int hci_h4p_send_negotiation(struct hci_h4p_info *info, struct sk_buff *skb)
++{
++ NBT_DBG("Sending negotiation..\n");
++
++ hci_h4p_change_speed(info, INIT_SPEED);
++
++ info->init_error = 0;
++ init_completion(&info->init_completion);
++ skb_queue_tail(&info->txq, skb);
++ tasklet_schedule(&info->tx_task);
++
++ if (!wait_for_completion_interruptible_timeout(&info->init_completion,
++ msecs_to_jiffies(1000)))
++ return -ETIMEDOUT;
++
++ NBT_DBG("Negotiation sent\n");
++ return info->init_error;
++}
++
++static void hci_h4p_negotiation_packet(struct hci_h4p_info *info,
++ struct sk_buff *skb)
++{
++ int err = 0;
++
++ if (skb->data[1] == 0x20) {
++ /* Change to operational settings */
++ hci_h4p_set_rts(info, 0);
++
++ err = hci_h4p_wait_for_cts(info, 0, 100);
++ if (err < 0)
++ goto neg_ret;
++
++ hci_h4p_change_speed(info, MAX_BAUD_RATE);
++
++ err = hci_h4p_wait_for_cts(info, 1, 100);
++ if (err < 0)
++ goto neg_ret;
++
++ hci_h4p_set_auto_ctsrts(info, 1, UART_EFR_CTS | UART_EFR_RTS);
++
++ err = hci_h4p_send_alive_packet(info);
++ if (err < 0)
++ goto neg_ret;
++ } else {
++ dev_err(info->dev, "Could not negotiate hci_h4p settings\n");
++ err = -EINVAL;
++ goto neg_ret;
++ }
++
++ kfree_skb(skb);
++ return;
++
++neg_ret:
++ info->init_error = err;
++ complete(&info->init_completion);
++ kfree_skb(skb);
++}
++
++/* H4 packet handling functions */
++static int hci_h4p_get_hdr_len(struct hci_h4p_info *info, u8 pkt_type)
++{
++ long retval;
++
++ switch (pkt_type) {
++ case H4_EVT_PKT:
++ retval = HCI_EVENT_HDR_SIZE;
++ break;
++ case H4_ACL_PKT:
++ retval = HCI_ACL_HDR_SIZE;
++ break;
++ case H4_SCO_PKT:
++ retval = HCI_SCO_HDR_SIZE;
++ break;
++ case H4_NEG_PKT:
++ retval = 11;
++ break;
++ case H4_ALIVE_PKT:
++ retval = 3;
++ break;
++ default:
++ dev_err(info->dev, "Unknown H4 packet type 0x%.2x\n", pkt_type);
++ retval = -1;
++ break;
++ }
++
++ return retval;
++}
++
++static unsigned int hci_h4p_get_data_len(struct hci_h4p_info *info,
++ struct sk_buff *skb)
++{
++ long retval = -1;
++ struct hci_event_hdr *evt_hdr;
++ struct hci_acl_hdr *acl_hdr;
++ struct hci_sco_hdr *sco_hdr;
++
++ switch (bt_cb(skb)->pkt_type) {
++ case H4_EVT_PKT:
++ evt_hdr = (struct hci_event_hdr *)skb->data;
++ retval = evt_hdr->plen;
++ break;
++ case H4_ACL_PKT:
++ acl_hdr = (struct hci_acl_hdr *)skb->data;
++ retval = le16_to_cpu(acl_hdr->dlen);
++ break;
++ case H4_SCO_PKT:
++ sco_hdr = (struct hci_sco_hdr *)skb->data;
++ retval = sco_hdr->dlen;
++ break;
++ case H4_NEG_PKT:
++ retval = 0;
++ break;
++ case H4_ALIVE_PKT:
++ retval = 0;
++ break;
++ }
++
++ return retval;
++}
++
++static inline void hci_h4p_recv_frame(struct hci_h4p_info *info,
++ struct sk_buff *skb)
++{
++
++ if (unlikely(!test_bit(HCI_RUNNING, &info->hdev->flags))) {
++ NBT_DBG("fw_event\n");
++ hci_h4p_parse_fw_event(info, skb);
++ } else {
++ hci_recv_frame(skb);
++ NBT_DBG("Frame sent to upper layer\n");
++ }
++}
++
++static void hci_h4p_rx_tasklet(unsigned long data)
++{
++ u8 byte;
++ unsigned long flags;
++ struct hci_h4p_info *info = (struct hci_h4p_info *)data;
++
++ NBT_DBG("tasklet woke up\n");
++ NBT_DBG_TRANSFER("rx_tasklet woke up\ndata ");
++
++ while (hci_h4p_inb(info, UART_LSR) & UART_LSR_DR) {
++ byte = hci_h4p_inb(info, UART_RX);
++ if (info->garbage_bytes) {
++ info->garbage_bytes--;
++ continue;
++ }
++ if (info->rx_skb == NULL) {
++ info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC | GFP_DMA);
++ if (!info->rx_skb) {
++ dev_err(info->dev, "Can't allocate memory for new packet\n");
++ goto finish_task;
++ }
++ info->rx_state = WAIT_FOR_PKT_TYPE;
++ info->rx_skb->dev = (void *)info->hdev;
++ }
++ info->hdev->stat.byte_rx++;
++ NBT_DBG_TRANSFER_NF("0x%.2x ", byte);
++ switch (info->rx_state) {
++ case WAIT_FOR_PKT_TYPE:
++ bt_cb(info->rx_skb)->pkt_type = byte;
++ info->rx_count = hci_h4p_get_hdr_len(info, byte);
++ if (info->rx_count < 0) {
++ info->hdev->stat.err_rx++;
++ kfree_skb(info->rx_skb);
++ info->rx_skb = NULL;
++ } else {
++ info->rx_state = WAIT_FOR_HEADER;
++ }
++ break;
++ case WAIT_FOR_HEADER:
++ info->rx_count--;
++ *skb_put(info->rx_skb, 1) = byte;
++ if (info->rx_count == 0) {
++ info->rx_count = hci_h4p_get_data_len(info, info->rx_skb);
++ if (info->rx_count > skb_tailroom(info->rx_skb)) {
++ dev_err(info->dev, "Frame is %ld bytes too long.\n",
++ info->rx_count - skb_tailroom(info->rx_skb));
++ kfree_skb(info->rx_skb);
++ info->rx_skb = NULL;
++ info->garbage_bytes = info->rx_count - skb_tailroom(info->rx_skb);
++ break;
++ }
++ info->rx_state = WAIT_FOR_DATA;
++
++ if (bt_cb(info->rx_skb)->pkt_type == H4_NEG_PKT) {
++ hci_h4p_negotiation_packet(info, info->rx_skb);
++ info->rx_skb = NULL;
++ info->rx_state = WAIT_FOR_PKT_TYPE;
++ goto finish_task;
++ }
++ if (bt_cb(info->rx_skb)->pkt_type == H4_ALIVE_PKT) {
++ hci_h4p_alive_packet(info, info->rx_skb);
++ info->rx_skb = NULL;
++ info->rx_state = WAIT_FOR_PKT_TYPE;
++ goto finish_task;
++ }
++ }
++ break;
++ case WAIT_FOR_DATA:
++ info->rx_count--;
++ *skb_put(info->rx_skb, 1) = byte;
++ if (info->rx_count == 0) {
++ /* H4+ devices should allways send word aligned packets */
++ if (!(info->rx_skb->len % 2)) {
++ info->garbage_bytes++;
++ }
++ hci_h4p_recv_frame(info, info->rx_skb);
++ info->rx_skb = NULL;
++ }
++ break;
++ default:
++ WARN_ON(1);
++ break;
++ }
++ }
++
++finish_task:
++ spin_lock_irqsave(&info->lock, flags);
++ hci_h4p_outb(info, UART_IER, hci_h4p_inb(info, UART_IER) | UART_IER_RDI);
++ spin_unlock_irqrestore(&info->lock, flags);
++
++ NBT_DBG_TRANSFER_NF("\n");
++ NBT_DBG("rx_ended\n");
++}
++
++static void hci_h4p_tx_tasklet(unsigned long data)
++{
++ unsigned int sent = 0;
++ unsigned long flags;
++ struct sk_buff *skb;
++ struct hci_h4p_info *info = (struct hci_h4p_info *)data;
++
++ NBT_DBG("tasklet woke up\n");
++ NBT_DBG_TRANSFER("tx_tasklet woke up\n data ");
++
++ skb = skb_dequeue(&info->txq);
++ if (!skb) {
++ /* No data in buffer */
++ NBT_DBG("skb ready\n");
++ hci_h4p_disable_tx(info);
++ return;
++ }
++
++ /* Copy data to tx fifo */
++ while (!(hci_h4p_inb(info, UART_OMAP_SSR) & UART_OMAP_SSR_TXFULL) &&
++ (sent < skb->len)) {
++ NBT_DBG_TRANSFER_NF("0x%.2x ", skb->data[sent]);
++ hci_h4p_outb(info, UART_TX, skb->data[sent]);
++ sent++;
++ }
++
++ info->hdev->stat.byte_tx += sent;
++ NBT_DBG_TRANSFER_NF("\n");
++ if (skb->len == sent) {
++ kfree_skb(skb);
++ } else {
++ skb_pull(skb, sent);
++ skb_queue_head(&info->txq, skb);
++ }
++
++ spin_lock_irqsave(&info->lock, flags);
++ hci_h4p_outb(info, UART_IER, hci_h4p_inb(info, UART_IER) | UART_IER_THRI);
++ spin_unlock_irqrestore(&info->lock, flags);
++}
++
++static irqreturn_t hci_h4p_interrupt(int irq, void *data)
++{
++ struct hci_h4p_info *info = (struct hci_h4p_info *)data;
++ u8 iir, msr;
++ int ret;
++ unsigned long flags;
++
++ ret = IRQ_NONE;
++
++ iir = hci_h4p_inb(info, UART_IIR);
++ if (iir & UART_IIR_NO_INT) {
++ dev_err(info->dev, "Interrupt but no reason irq 0x%.2x\n", iir);
++ return IRQ_HANDLED;
++ }
++
++ NBT_DBG("In interrupt handler iir 0x%.2x\n", iir);
++
++ iir &= UART_IIR_ID;
++
++ if (iir == UART_IIR_MSI) {
++ msr = hci_h4p_inb(info, UART_MSR);
++ ret = IRQ_HANDLED;
++ }
++ if (iir == UART_IIR_RLSI) {
++ hci_h4p_inb(info, UART_RX);
++ hci_h4p_inb(info, UART_LSR);
++ ret = IRQ_HANDLED;
++ }
++
++ if (iir == UART_IIR_RDI) {
++ spin_lock_irqsave(&info->lock, flags);
++ hci_h4p_outb(info, UART_IER, hci_h4p_inb(info, UART_IER) & ~UART_IER_RDI);
++ spin_unlock_irqrestore(&info->lock, flags);
++ tasklet_schedule(&info->rx_task);
++ ret = IRQ_HANDLED;
++ }
++
++ if (iir == UART_IIR_THRI) {
++ spin_lock_irqsave(&info->lock, flags);
++ hci_h4p_outb(info, UART_IER, hci_h4p_inb(info, UART_IER) & ~UART_IER_THRI);
++ spin_unlock_irqrestore(&info->lock, flags);
++ tasklet_schedule(&info->tx_task);
++ ret = IRQ_HANDLED;
++ }
++
++ return ret;
++}
++
++static irqreturn_t hci_h4p_wakeup_interrupt(int irq, void *dev_inst)
++{
++ struct hci_h4p_info *info = dev_inst;
++ int should_wakeup;
++ struct hci_dev *hdev;
++
++ if (!info->hdev)
++ return IRQ_HANDLED;
++
++ hdev = info->hdev;
++
++ if (!test_bit(HCI_RUNNING, &hdev->flags))
++ return IRQ_HANDLED;
++
++ should_wakeup = gpio_get_value(info->host_wakeup_gpio);
++ NBT_DBG_POWER("gpio interrupt %d\n", should_wakeup);
++ if (should_wakeup) {
++ hci_h4p_enable_rx(info);
++ } else {
++ hci_h4p_disable_rx(info);
++ }
++
++ return IRQ_HANDLED;
++}
++
++static int hci_h4p_reset(struct hci_h4p_info *info)
++{
++ int err;
++
++ hci_h4p_init_uart(info);
++ hci_h4p_set_rts(info, 0);
++
++ gpio_set_value(info->reset_gpio, 0);
++ msleep(100);
++ gpio_set_value(info->bt_wakeup_gpio, 1);
++ gpio_set_value(info->reset_gpio, 1);
++ msleep(100);
++
++ err = hci_h4p_wait_for_cts(info, 1, 10);
++ if (err < 0) {
++ dev_err(info->dev, "No cts from bt chip\n");
++ return err;
++ }
++
++ hci_h4p_set_rts(info, 1);
++
++ return 0;
++}
++
++/* hci callback functions */
++static int hci_h4p_hci_flush(struct hci_dev *hdev)
++{
++ struct hci_h4p_info *info;
++ info = hdev->driver_data;
++
++ skb_queue_purge(&info->txq);
++
++ return 0;
++}
++
++static int hci_h4p_hci_open(struct hci_dev *hdev)
++{
++ struct hci_h4p_info *info;
++ int err;
++ struct sk_buff *neg_cmd_skb;
++ struct sk_buff_head fw_queue;
++
++ info = hdev->driver_data;
++
++ if (test_bit(HCI_RUNNING, &hdev->flags))
++ return 0;
++
++ skb_queue_head_init(&fw_queue);
++ err = hci_h4p_read_fw(info, &fw_queue);
++ if (err < 0) {
++ dev_err(info->dev, "Cannot read firmware\n");
++ return err;
++ }
++ neg_cmd_skb = skb_dequeue(&fw_queue);
++ if (!neg_cmd_skb) {
++ err = -EPROTO;
++ goto err_clean;
++ }
++ info->alive_cmd_skb = skb_dequeue(&fw_queue);
++ if (!info->alive_cmd_skb) {
++ err = -EPROTO;
++ goto err_clean;
++ }
++
++ hci_h4p_set_clk(info, &info->tx_clocks_en, 1);
++ hci_h4p_set_clk(info, &info->rx_clocks_en, 1);
++
++ tasklet_enable(&info->tx_task);
++ tasklet_enable(&info->rx_task);
++ info->rx_state = WAIT_FOR_PKT_TYPE;
++ info->rx_count = 0;
++ info->garbage_bytes = 0;
++ info->rx_skb = NULL;
++ info->pm_enabled = 0;
++ init_completion(&info->fw_completion);
++
++ err = hci_h4p_reset(info);
++ if (err < 0)
++ goto err_clean;
++
++ err = hci_h4p_send_negotiation(info, neg_cmd_skb);
++ neg_cmd_skb = NULL;
++ if (err < 0)
++ goto err_clean;
++
++ err = hci_h4p_send_fw(info, &fw_queue);
++ if (err < 0) {
++ dev_err(info->dev, "Sending firmware failed.\n");
++ goto err_clean;
++ }
++
++ kfree_skb(info->alive_cmd_skb);
++ info->alive_cmd_skb = NULL;
++ info->pm_enabled = 1;
++ info->tx_pm_enabled = 1;
++ info->rx_pm_enabled = 0;
++ set_bit(HCI_RUNNING, &hdev->flags);
++
++ NBT_DBG("hci up and running\n");
++ return 0;
++
++err_clean:
++ hci_h4p_hci_flush(hdev);
++ tasklet_disable(&info->tx_task);
++ tasklet_disable(&info->rx_task);
++ hci_h4p_reset_uart(info);
++ hci_h4p_set_clk(info, &info->tx_clocks_en, 0);
++ hci_h4p_set_clk(info, &info->rx_clocks_en, 0);
++ gpio_set_value(info->reset_gpio, 0);
++ gpio_set_value(info->bt_wakeup_gpio, 0);
++ skb_queue_purge(&fw_queue);
++ kfree_skb(neg_cmd_skb);
++ neg_cmd_skb = NULL;
++ kfree_skb(info->alive_cmd_skb);
++ info->alive_cmd_skb = NULL;
++ kfree_skb(info->rx_skb);
++
++ return err;
++}
++
++static int hci_h4p_hci_close(struct hci_dev *hdev)
++{
++ struct hci_h4p_info *info = hdev->driver_data;
++
++ if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
++ return 0;
++
++ hci_h4p_hci_flush(hdev);
++ del_timer_sync(&info->tx_pm_timer);
++ del_timer_sync(&info->rx_pm_timer);
++ tasklet_disable(&info->tx_task);
++ tasklet_disable(&info->rx_task);
++ hci_h4p_set_clk(info, &info->tx_clocks_en, 1);
++ hci_h4p_set_clk(info, &info->rx_clocks_en, 1);
++ hci_h4p_reset_uart(info);
++ hci_h4p_set_clk(info, &info->tx_clocks_en, 0);
++ hci_h4p_set_clk(info, &info->rx_clocks_en, 0);
++ gpio_set_value(info->reset_gpio, 0);
++ gpio_set_value(info->bt_wakeup_gpio, 0);
++ kfree_skb(info->rx_skb);
++
++ return 0;
++}
++
++static void hci_h4p_hci_destruct(struct hci_dev *hdev)
++{
++}
++
++static int hci_h4p_hci_send_frame(struct sk_buff *skb)
++{
++ struct hci_h4p_info *info;
++ struct hci_dev *hdev = (struct hci_dev *)skb->dev;
++ int err = 0;
++
++ if (!hdev) {
++ printk(KERN_WARNING "hci_h4p: Frame for unknown device\n");
++ return -ENODEV;
++ }
++
++ NBT_DBG("dev %p, skb %p\n", hdev, skb);
++
++ info = hdev->driver_data;
++
++ if (!test_bit(HCI_RUNNING, &hdev->flags)) {
++ dev_warn(info->dev, "Frame for non-running device\n");
++ return -EIO;
++ }
++
++ switch (bt_cb(skb)->pkt_type) {
++ case HCI_COMMAND_PKT:
++ hdev->stat.cmd_tx++;
++ break;
++ case HCI_ACLDATA_PKT:
++ hdev->stat.acl_tx++;
++ break;
++ case HCI_SCODATA_PKT:
++ hdev->stat.sco_tx++;
++ break;
++ }
++
++ /* Push frame type to skb */
++ *skb_push(skb, 1) = (bt_cb(skb)->pkt_type);
++ /* We should allways send word aligned data to h4+ devices */
++ if (skb->len % 2) {
++ err = skb_pad(skb, 1);
++ }
++ if (err)
++ return err;
++
++ hci_h4p_enable_tx(info);
++ skb_queue_tail(&info->txq, skb);
++ tasklet_schedule(&info->tx_task);
++
++ return 0;
++}
++
++static int hci_h4p_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
++{
++ return -ENOIOCTLCMD;
++}
++
++static int hci_h4p_register_hdev(struct hci_h4p_info *info)
++{
++ struct hci_dev *hdev;
++
++ /* Initialize and register HCI device */
++
++ hdev = hci_alloc_dev();
++ if (!hdev) {
++ dev_err(info->dev, "Can't allocate memory for device\n");
++ return -ENOMEM;
++ }
++ info->hdev = hdev;
++
++ hdev->type = HCI_UART;
++ hdev->driver_data = info;
++
++ hdev->open = hci_h4p_hci_open;
++ hdev->close = hci_h4p_hci_close;
++ hdev->flush = hci_h4p_hci_flush;
++ hdev->send = hci_h4p_hci_send_frame;
++ hdev->destruct = hci_h4p_hci_destruct;
++ hdev->ioctl = hci_h4p_hci_ioctl;
++
++ hdev->owner = THIS_MODULE;
++
++ if (hci_register_dev(hdev) < 0) {
++ dev_err(info->dev, "hci_h4p: Can't register HCI device %s.\n", hdev->name);
++ return -ENODEV;
++ }
++
++ return 0;
++}
++
++static int hci_h4p_probe(struct platform_device *pdev)
++{
++ struct omap_bluetooth_config *bt_config;
++ struct hci_h4p_info *info;
++ int irq, err;
++
++ dev_info(&pdev->dev, "Registering HCI H4P device\n");
++ info = kzalloc(sizeof(struct hci_h4p_info), GFP_KERNEL);
++ if (!info)
++ return -ENOMEM;
++
++ info->dev = &pdev->dev;
++ info->pm_enabled = 0;
++ info->tx_pm_enabled = 0;
++ info->rx_pm_enabled = 0;
++ info->garbage_bytes = 0;
++ info->tx_clocks_en = 0;
++ info->rx_clocks_en = 0;
++ tasklet_init(&info->tx_task, hci_h4p_tx_tasklet, (unsigned long)info);
++ tasklet_init(&info->rx_task, hci_h4p_rx_tasklet, (unsigned long)info);
++ /* hci_h4p_hci_open assumes that tasklet is disabled in startup */
++ tasklet_disable(&info->tx_task);
++ tasklet_disable(&info->rx_task);
++ spin_lock_init(&info->lock);
++ spin_lock_init(&info->clocks_lock);
++ skb_queue_head_init(&info->txq);
++ init_timer(&info->tx_pm_timer);
++ info->tx_pm_timer.function = hci_h4p_tx_pm_timer;
++ info->tx_pm_timer.data = (unsigned long)info;
++ init_timer(&info->rx_pm_timer);
++ info->rx_pm_timer.function = hci_h4p_rx_pm_timer;
++ info->rx_pm_timer.data = (unsigned long)info;
++
++ if (pdev->dev.platform_data == NULL) {
++ dev_err(&pdev->dev, "Could not get Bluetooth config data\n");
++ return -ENODATA;
++ }
++
++ bt_config = pdev->dev.platform_data;
++ info->chip_type = bt_config->chip_type;
++ info->bt_wakeup_gpio = bt_config->bt_wakeup_gpio;
++ info->host_wakeup_gpio = bt_config->host_wakeup_gpio;
++ info->reset_gpio = bt_config->reset_gpio;
++ info->bt_sysclk = bt_config->bt_sysclk;
++
++ NBT_DBG("RESET gpio: %d\n", info->reset_gpio);
++ NBT_DBG("BTWU gpio: %d\n", info->bt_wakeup_gpio);
++ NBT_DBG("HOSTWU gpio: %d\n", info->host_wakeup_gpio);
++ NBT_DBG("Uart: %d\n", bt_config->bt_uart);
++ NBT_DBG("sysclk: %d\n", info->bt_sysclk);
++
++ err = gpio_request(info->reset_gpio, "BT reset");
++ if (err < 0) {
++ dev_err(&pdev->dev, "Cannot get GPIO line %d\n",
++ info->reset_gpio);
++ kfree(info);
++ goto cleanup;
++ }
++
++ err = gpio_request(info->bt_wakeup_gpio, "BT wakeup");
++ if (err < 0)
++ {
++ dev_err(info->dev, "Cannot get GPIO line 0x%d",
++ info->bt_wakeup_gpio);
++ gpio_free(info->reset_gpio);
++ kfree(info);
++ goto cleanup;
++ }
++
++ err = gpio_request(info->host_wakeup_gpio, "BT host wakeup");
++ if (err < 0)
++ {
++ dev_err(info->dev, "Cannot get GPIO line %d",
++ info->host_wakeup_gpio);
++ gpio_free(info->reset_gpio);
++ gpio_free(info->bt_wakeup_gpio);
++ kfree(info);
++ goto cleanup;
++ }
++
++ gpio_direction_output(info->reset_gpio, 0);
++ gpio_direction_output(info->bt_wakeup_gpio, 0);
++ gpio_direction_input(info->host_wakeup_gpio);
++
++ switch (bt_config->bt_uart) {
++ case 1:
++ if (cpu_is_omap16xx()) {
++ irq = INT_UART1;
++ info->uart_fclk = clk_get(NULL, "uart1_ck");
++ } else if (cpu_is_omap24xx()) {
++ irq = INT_24XX_UART1_IRQ;
++ info->uart_iclk = clk_get(NULL, "uart1_ick");
++ info->uart_fclk = clk_get(NULL, "uart1_fck");
++ }
++ /* FIXME: Use platform_get_resource for the port */
++ info->uart_base = ioremap(OMAP_UART1_BASE, 0x16);
++ if (!info->uart_base)
++ goto cleanup;
++ break;
++ case 2:
++ if (cpu_is_omap16xx()) {
++ irq = INT_UART2;
++ info->uart_fclk = clk_get(NULL, "uart2_ck");
++ } else {
++ irq = INT_24XX_UART2_IRQ;
++ info->uart_iclk = clk_get(NULL, "uart2_ick");
++ info->uart_fclk = clk_get(NULL, "uart2_fck");
++ }
++ /* FIXME: Use platform_get_resource for the port */
++ info->uart_base = ioremap(OMAP_UART2_BASE, 0x16);
++ if (!info->uart_base)
++ goto cleanup;
++ break;
++ case 3:
++ if (cpu_is_omap16xx()) {
++ irq = INT_UART3;
++ info->uart_fclk = clk_get(NULL, "uart3_ck");
++ } else {
++ irq = INT_24XX_UART3_IRQ;
++ info->uart_iclk = clk_get(NULL, "uart3_ick");
++ info->uart_fclk = clk_get(NULL, "uart3_fck");
++ }
++ /* FIXME: Use platform_get_resource for the port */
++ info->uart_base = ioremap(OMAP_UART3_BASE, 0x16);
++ if (!info->uart_base)
++ goto cleanup;
++ break;
++ default:
++ dev_err(info->dev, "No uart defined\n");
++ goto cleanup;
++ }
++
++ info->irq = irq;
++ err = request_irq(irq, hci_h4p_interrupt, 0, "hci_h4p", (void *)info);
++ if (err < 0) {
++ dev_err(info->dev, "hci_h4p: unable to get IRQ %d\n", irq);
++ goto cleanup;
++ }
++
++ err = request_irq(gpio_to_irq(info->host_wakeup_gpio),
++ hci_h4p_wakeup_interrupt,
++ IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
++ "hci_h4p_wkup", (void *)info);
++ if (err < 0) {
++ dev_err(info->dev, "hci_h4p: unable to get wakeup IRQ %d\n",
++ gpio_to_irq(info->host_wakeup_gpio));
++ free_irq(irq, (void *)info);
++ goto cleanup;
++ }
++
++ hci_h4p_set_clk(info, &info->tx_clocks_en, 1);
++ hci_h4p_set_auto_ctsrts(info, 0, UART_EFR_CTS | UART_EFR_RTS);
++ err = hci_h4p_init_uart(info);
++ if (err < 0)
++ goto cleanup_irq;
++ err = hci_h4p_reset(info);
++ if (err < 0)
++ goto cleanup_irq;
++ err = hci_h4p_wait_for_cts(info, 1, 10);
++ if (err < 0)
++ goto cleanup_irq;
++ hci_h4p_set_clk(info, &info->tx_clocks_en, 0);
++
++ platform_set_drvdata(pdev, info);
++ err = hci_h4p_sysfs_create_files(info->dev);
++ if (err < 0)
++ goto cleanup_irq;
++
++ if (hci_h4p_register_hdev(info) < 0) {
++ dev_err(info->dev, "failed to register hci_h4p hci device\n");
++ goto cleanup_irq;
++ }
++ gpio_set_value(info->reset_gpio, 0);
++
++ return 0;
++
++cleanup_irq:
++ free_irq(irq, (void *)info);
++ free_irq(gpio_to_irq(info->host_wakeup_gpio), (void *)info);
++cleanup:
++ gpio_set_value(info->reset_gpio, 0);
++ gpio_free(info->reset_gpio);
++ gpio_free(info->bt_wakeup_gpio);
++ gpio_free(info->host_wakeup_gpio);
++ kfree(info);
++
++ return err;
++
++}
++
++static int hci_h4p_remove(struct platform_device *dev)
++{
++ struct hci_h4p_info *info;
++
++ info = platform_get_drvdata(dev);
++
++ hci_h4p_hci_close(info->hdev);
++ free_irq(gpio_to_irq(info->host_wakeup_gpio), (void *) info);
++ hci_free_dev(info->hdev);
++ gpio_free(info->reset_gpio);
++ gpio_free(info->bt_wakeup_gpio);
++ gpio_free(info->host_wakeup_gpio);
++ free_irq(info->irq, (void *) info);
++ kfree(info);
++
++ return 0;
++}
++
++static struct platform_driver hci_h4p_driver = {
++ .probe = hci_h4p_probe,
++ .remove = hci_h4p_remove,
++ .driver = {
++ .name = "hci_h4p",
++ },
++};
++
++static int __init hci_h4p_init(void)
++{
++ int err = 0;
++
++ /* Register the driver with LDM */
++ err = platform_driver_register(&hci_h4p_driver);
++ if (err < 0)
++ printk(KERN_WARNING "failed to register hci_h4p driver\n");
++
++ return err;
++}
++
++static void __exit hci_h4p_exit(void)
++{
++ platform_driver_unregister(&hci_h4p_driver);
++}
++
++module_init(hci_h4p_init);
++module_exit(hci_h4p_exit);
++
++MODULE_DESCRIPTION("h4 driver with nokia extensions");
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Ville Tervo");
+Index: linux-2.6.35/drivers/bluetooth/hci_h4p/fw.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.35/drivers/bluetooth/hci_h4p/fw.c 2010-08-08 12:57:24.000000000 +0200
+@@ -0,0 +1,155 @@
++/*
++ * This file is part of hci_h4p bluetooth driver
++ *
++ * Copyright (C) 2005, 2006 Nokia Corporation.
++ *
++ * Contact: Ville Tervo <ville.tervo@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
++ * 02110-1301 USA
++ *
++ */
++
++#include <linux/skbuff.h>
++#include <linux/firmware.h>
++#include <linux/clk.h>
++
++#include <net/bluetooth/bluetooth.h>
++
++#include "hci_h4p.h"
++
++#define BT_CHIP_TI 2
++#define BT_CHIP_CSR 1
++
++static int fw_pos;
++
++/* Firmware handling */
++static int hci_h4p_open_firmware(struct hci_h4p_info *info,
++ const struct firmware **fw_entry)
++{
++ int err;
++
++ fw_pos = 0;
++ NBT_DBG_FW("Opening %d firmware\n", info->chip_type);
++ switch (info->chip_type) {
++ case BT_CHIP_TI:
++ err = request_firmware(fw_entry, "brf6150fw.bin", info->dev);
++ break;
++ case BT_CHIP_CSR:
++ err = request_firmware(fw_entry, "bc4fw.bin", info->dev);
++ break;
++ default:
++ dev_err(info->dev, "Invalid chip type\n");
++ *fw_entry = NULL;
++ err = -EINVAL;
++ }
++
++ return err;
++}
++
++static void hci_h4p_close_firmware(const struct firmware *fw_entry)
++{
++ release_firmware(fw_entry);
++}
++
++/* Read fw. Return length of the command. If no more commands in
++ * fw 0 is returned. In error case return value is negative.
++ */
++static int hci_h4p_read_fw_cmd(struct hci_h4p_info *info, struct sk_buff **skb,
++ const struct firmware *fw_entry, int how)
++{
++ unsigned int cmd_len;
++
++ if (fw_pos >= fw_entry->size) {
++ return 0;
++ }
++
++ cmd_len = fw_entry->data[fw_pos++];
++ if (!cmd_len)
++ return 0;
++
++ if (fw_pos + cmd_len > fw_entry->size) {
++ dev_err(info->dev, "Corrupted firmware image\n");
++ return -EMSGSIZE;
++ }
++
++ *skb = bt_skb_alloc(cmd_len, how);
++ if (!*skb) {
++ dev_err(info->dev, "Cannot reserve memory for buffer\n");
++ return -ENOMEM;
++ }
++ memcpy(skb_put(*skb, cmd_len), &fw_entry->data[fw_pos], cmd_len);
++
++ fw_pos += cmd_len;
++
++ return (*skb)->len;
++}
++
++int hci_h4p_read_fw(struct hci_h4p_info *info, struct sk_buff_head *fw_queue)
++{
++ const struct firmware *fw_entry = NULL;
++ struct sk_buff *skb = NULL;
++ int err;
++
++ err = hci_h4p_open_firmware(info, &fw_entry);
++ if (err < 0 || !fw_entry)
++ goto err_clean;
++
++ while ((err = hci_h4p_read_fw_cmd(info, &skb, fw_entry, GFP_KERNEL))) {
++ if (err < 0 || !skb)
++ goto err_clean;
++
++ skb_queue_tail(fw_queue, skb);
++ }
++
++err_clean:
++ hci_h4p_close_firmware(fw_entry);
++ return err;
++}
++
++int hci_h4p_send_fw(struct hci_h4p_info *info, struct sk_buff_head *fw_queue)
++{
++ int err;
++
++ switch(info->chip_type) {
++ case BT_CHIP_CSR:
++ err = hci_h4p_bc4_send_fw(info, fw_queue);
++ break;
++ case BT_CHIP_TI:
++ err = hci_h4p_brf6150_send_fw(info, fw_queue);
++ break;
++ default:
++ dev_err(info->dev, "Don't know how to send firmware\n");
++ err = -EINVAL;
++ }
++
++ return err;
++}
++
++void hci_h4p_parse_fw_event(struct hci_h4p_info *info, struct sk_buff *skb)
++{
++ switch (info->chip_type) {
++ case BT_CHIP_CSR:
++ hci_h4p_bc4_parse_fw_event(info, skb);
++ break;
++ case BT_CHIP_TI:
++ hci_h4p_brf6150_parse_fw_event(info, skb);
++ break;
++ default:
++ dev_err(info->dev, "Don't know how to parse fw event\n");
++ info->fw_error = -EINVAL;
++ }
++
++ return;
++}
+Index: linux-2.6.35/drivers/bluetooth/hci_h4p/fw-csr.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.35/drivers/bluetooth/hci_h4p/fw-csr.c 2010-08-08 12:57:25.000000000 +0200
+@@ -0,0 +1,149 @@
++/*
++ * This file is part of hci_h4p bluetooth driver
++ *
++ * Copyright (C) 2005, 2006 Nokia Corporation.
++ *
++ * Contact: Ville Tervo <ville.tervo@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
++ * 02110-1301 USA
++ *
++ */
++
++#include <linux/skbuff.h>
++#include <linux/delay.h>
++#include <linux/serial_reg.h>
++
++#include "hci_h4p.h"
++
++void hci_h4p_bc4_parse_fw_event(struct hci_h4p_info *info, struct sk_buff *skb)
++{
++ /* Check if this is fw packet */
++ if (skb->data[0] != 0xff) {
++ hci_recv_frame(skb);
++ return;
++ }
++
++ if (skb->data[11] || skb->data[12]) {
++ dev_err(info->dev, "Firmware sending command failed\n");
++ info->fw_error = -EPROTO;
++ }
++
++ kfree_skb(skb);
++ complete(&info->fw_completion);
++}
++
++int hci_h4p_bc4_send_fw(struct hci_h4p_info *info,
++ struct sk_buff_head *fw_queue)
++{
++ struct sk_buff *skb;
++ unsigned int offset;
++ int retries, count, i;
++
++ info->fw_error = 0;
++
++ NBT_DBG_FW("Sending firmware\n");
++ skb = skb_dequeue(fw_queue);
++
++ if (!skb)
++ return -ENOMSG;
++
++ info->bdaddr[0] = 0x00;
++ info->bdaddr[1] = 0x1D;
++ info->bdaddr[2] = 0x6E;
++ info->bdaddr[3] = 0xD4;
++ info->bdaddr[4] = 0xF0;
++ info->bdaddr[5] = 0x37;
++
++ /* Check if this is bd_address packet */
++ if (skb->data[15] == 0x01 && skb->data[16] == 0x00) {
++ dev_info(info->dev, "bd_address packet found\n");
++ offset = 21;
++ skb->data[offset + 1] = 0x00;
++ skb->data[offset + 5] = 0x00;
++ skb->data[offset + 7] = info->bdaddr[0];
++ skb->data[offset + 6] = info->bdaddr[1];
++ skb->data[offset + 4] = info->bdaddr[2];
++ skb->data[offset + 0] = info->bdaddr[3];
++ skb->data[offset + 3] = info->bdaddr[4];
++ skb->data[offset + 2] = info->bdaddr[5];
++ }
++
++ for (i = 0; i < 6; i++) {
++ if (info->bdaddr[i] != 0x00)
++ break;
++ }
++
++ /* if (i > 5) {
++ dev_info(info->dev, "Valid bluetooth address not found.\n");
++ kfree_skb(skb);
++ return -ENODEV;
++ } */
++
++ for (count = 1; ; count++) {
++ NBT_DBG_FW("Sending firmware command %d\n", count);
++ init_completion(&info->fw_completion);
++ skb_queue_tail(&info->txq, skb);
++ tasklet_schedule(&info->tx_task);
++
++ skb = skb_dequeue(fw_queue);
++ if (!skb)
++ break;
++
++ if (!wait_for_completion_timeout(&info->fw_completion,
++ msecs_to_jiffies(1000))) {
++ dev_err(info->dev, "No reply to fw command\n");
++ return -ETIMEDOUT;
++ }
++
++ if (info->fw_error) {
++ dev_err(info->dev, "FW error\n");
++ return -EPROTO;
++ }
++ };
++
++ /* Wait for chip warm reset */
++ retries = 100;
++ while ((!skb_queue_empty(&info->txq) ||
++ !(hci_h4p_inb(info, UART_LSR) & UART_LSR_TEMT)) &&
++ retries--) {
++ msleep(10);
++ }
++ if (!retries) {
++ dev_err(info->dev, "Transmitter not empty\n");
++ return -ETIMEDOUT;
++ }
++
++ hci_h4p_change_speed(info, BC4_MAX_BAUD_RATE);
++
++ if (hci_h4p_wait_for_cts(info, 1, 100)) {
++ dev_err(info->dev, "cts didn't go down after final speed change\n");
++ return -ETIMEDOUT;
++ }
++
++ retries = 100;
++ do {
++ init_completion(&info->init_completion);
++ hci_h4p_send_alive_packet(info);
++ retries--;
++ } while (!wait_for_completion_timeout(&info->init_completion, 100) &&
++ retries > 0);
++
++ if (!retries) {
++ dev_err(info->dev, "No alive reply after speed change\n");
++ return -ETIMEDOUT;
++ }
++
++ return 0;
++}
+Index: linux-2.6.35/drivers/bluetooth/hci_h4p/fw-ti.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.35/drivers/bluetooth/hci_h4p/fw-ti.c 2010-08-08 12:57:26.000000000 +0200
+@@ -0,0 +1,90 @@
++/*
++ * This file is part of hci_h4p bluetooth driver
++ *
++ * Copyright (C) 2005, 2006 Nokia Corporation.
++ *
++ * Contact: Ville Tervo <ville.tervo@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
++ * 02110-1301 USA
++ *
++ */
++
++#include <linux/skbuff.h>
++
++#include "hci_h4p.h"
++
++void hci_h4p_brf6150_parse_fw_event(struct hci_h4p_info *info,
++ struct sk_buff *skb)
++{
++ struct hci_fw_event *ev;
++ int err = 0;
++
++ if (bt_cb(skb)->pkt_type != H4_EVT_PKT) {
++ dev_err(info->dev, "Got non event fw packet.\n");
++ err = -EPROTO;
++ goto ret;
++ }
++
++ ev = (struct hci_fw_event *)skb->data;
++ if (ev->hev.evt != HCI_EV_CMD_COMPLETE) {
++ dev_err(info->dev, "Got non cmd complete fw event\n");
++ err = -EPROTO;
++ goto ret;
++ }
++
++ if (ev->status != 0) {
++ dev_err(info->dev, "Got error status from fw command\n");
++ err = -EPROTO;
++ goto ret;
++ }
++
++ret:
++ info->fw_error = err;
++ complete(&info->fw_completion);
++}
++
++int hci_h4p_brf6150_send_fw(struct hci_h4p_info *info, struct sk_buff_head *fw_queue)
++{
++ struct sk_buff *skb;
++ int err = 0;
++
++ info->fw_error = 0;
++
++ while ((skb = skb_dequeue(fw_queue)) != NULL) {
++ /* We should allways send word aligned data to h4+ devices */
++ if (skb->len % 2) {
++ err = skb_pad(skb, 1);
++ }
++ if (err)
++ return err;
++
++ init_completion(&info->fw_completion);
++ skb_queue_tail(&info->txq, skb);
++ tasklet_schedule(&info->tx_task);
++
++ if (!wait_for_completion_timeout(&info->fw_completion, HZ)) {
++ dev_err(info->dev, "Timeout while sending brf6150 fw\n");
++ return -ETIMEDOUT;
++ }
++
++ if (info->fw_error) {
++ dev_err(info->dev, "There was fw_error while sending bfr6150 fw\n");
++ return -EPROTO;
++ }
++ }
++ NBT_DBG_FW("Firmware sent\n");
++
++ return 0;
++}
+Index: linux-2.6.35/drivers/bluetooth/hci_h4p/hci_h4p.h
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.35/drivers/bluetooth/hci_h4p/hci_h4p.h 2010-08-08 12:57:26.000000000 +0200
+@@ -0,0 +1,183 @@
++/*
++ * This file is part of hci_h4p bluetooth driver
++ *
++ * Copyright (C) 2005, 2006 Nokia Corporation.
++ *
++ * Contact: Ville Tervo <ville.tervo@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
++ * 02110-1301 USA
++ *
++ */
++
++#include <mach/board.h>
++
++#include <net/bluetooth/bluetooth.h>
++#include <net/bluetooth/hci_core.h>
++#include <net/bluetooth/hci.h>
++
++#ifndef __DRIVERS_BLUETOOTH_HCI_H4P_H
++#define __DRIVERS_BLUETOOTH_HCI_H4P_H
++
++#define UART_SYSC_OMAP_RESET 0x03
++#define UART_SYSS_RESETDONE 0x01
++#define UART_OMAP_SCR_EMPTY_THR 0x08
++#define UART_OMAP_SCR_WAKEUP 0x10
++#define UART_OMAP_SSR_WAKEUP 0x02
++#define UART_OMAP_SSR_TXFULL 0x01
++
++#if 0
++#define NBT_DBG(fmt, arg...) printk("%s: " fmt "" , __FUNCTION__ , ## arg)
++#else
++#define NBT_DBG(...)
++#endif
++
++#if 0
++#define NBT_DBG_FW(fmt, arg...) printk("%s: " fmt "" , __FUNCTION__ , ## arg)
++#else
++#define NBT_DBG_FW(...)
++#endif
++
++#if 0
++#define NBT_DBG_POWER(fmt, arg...) printk("%s: " fmt "" , __FUNCTION__ , ## arg)
++#else
++#define NBT_DBG_POWER(...)
++#endif
++
++#if 0
++#define NBT_DBG_TRANSFER(fmt, arg...) printk("%s: " fmt "" , __FUNCTION__ , ## arg)
++#else
++#define NBT_DBG_TRANSFER(...)
++#endif
++
++#if 0
++#define NBT_DBG_TRANSFER_NF(fmt, arg...) printk(fmt "" , ## arg)
++#else
++#define NBT_DBG_TRANSFER_NF(...)
++#endif
++
++#if 0
++#define NBT_DBG_DMA(fmt, arg...) printk("%s: " fmt "" , __FUNCTION__ , ## arg)
++#else
++#define NBT_DBG_DMA(...)
++#endif
++
++struct hci_h4p_info {
++ struct hci_dev *hdev;
++ spinlock_t lock;
++
++ void __iomem *uart_base;
++ unsigned long uart_phys_base;
++ int irq;
++ struct device *dev;
++ u8 bdaddr[6];
++ u8 chip_type;
++ u8 bt_wakeup_gpio;
++ u8 host_wakeup_gpio;
++ u8 reset_gpio;
++ u8 bt_sysclk;
++
++
++ struct sk_buff_head fw_queue;
++ struct sk_buff *alive_cmd_skb;
++ struct completion init_completion;
++ struct completion fw_completion;
++ int fw_error;
++ int init_error;
++
++ struct sk_buff_head txq;
++ struct tasklet_struct tx_task;
++
++ struct sk_buff *rx_skb;
++ long rx_count;
++ unsigned long rx_state;
++ unsigned long garbage_bytes;
++ struct tasklet_struct rx_task;
++
++ int pm_enabled;
++ int tx_pm_enabled;
++ int rx_pm_enabled;
++ struct timer_list tx_pm_timer;
++ struct timer_list rx_pm_timer;
++
++ int tx_clocks_en;
++ int rx_clocks_en;
++ spinlock_t clocks_lock;
++ struct clk *uart_iclk;
++ struct clk *uart_fclk;
++};
++
++#define MAX_BAUD_RATE 921600
++#define BC4_MAX_BAUD_RATE 3692300
++#define UART_CLOCK 48000000
++#define BT_INIT_DIVIDER 320
++#define BT_BAUDRATE_DIVIDER 384000000
++#define BT_SYSCLK_DIV 1000
++#define INIT_SPEED 120000
++
++#define H4_TYPE_SIZE 1
++
++/* H4+ packet types */
++#define H4_CMD_PKT 0x01
++#define H4_ACL_PKT 0x02
++#define H4_SCO_PKT 0x03
++#define H4_EVT_PKT 0x04
++#define H4_NEG_PKT 0x06
++#define H4_ALIVE_PKT 0x07
++
++/* TX states */
++#define WAIT_FOR_PKT_TYPE 1
++#define WAIT_FOR_HEADER 2
++#define WAIT_FOR_DATA 3
++
++struct hci_fw_event {
++ struct hci_event_hdr hev;
++ struct hci_ev_cmd_complete cmd;
++ u8 status;
++} __attribute__ ((packed));
++
++struct hci_bc4_set_bdaddr {
++ u8 type;
++ struct hci_command_hdr cmd_hdr;
++} __attribute__ ((packed));
++
++int hci_h4p_send_alive_packet(struct hci_h4p_info *info);
++
++void hci_h4p_bc4_parse_fw_event(struct hci_h4p_info *info,
++ struct sk_buff *skb);
++int hci_h4p_bc4_send_fw(struct hci_h4p_info *info,
++ struct sk_buff_head *fw_queue);
++
++void hci_h4p_brf6150_parse_fw_event(struct hci_h4p_info *info,
++ struct sk_buff *skb);
++int hci_h4p_brf6150_send_fw(struct hci_h4p_info *info,
++ struct sk_buff_head *fw_queue);
++
++int hci_h4p_read_fw(struct hci_h4p_info *info, struct sk_buff_head *fw_queue);
++int hci_h4p_send_fw(struct hci_h4p_info *info, struct sk_buff_head *fw_queue);
++void hci_h4p_parse_fw_event(struct hci_h4p_info *info, struct sk_buff *skb);
++
++int hci_h4p_sysfs_create_files(struct device *dev);
++
++void hci_h4p_outb(struct hci_h4p_info *info, unsigned int offset, u8 val);
++u8 hci_h4p_inb(struct hci_h4p_info *info, unsigned int offset);
++void hci_h4p_set_rts(struct hci_h4p_info *info, int active);
++int hci_h4p_wait_for_cts(struct hci_h4p_info *info, int active, int timeout_ms);
++void __hci_h4p_set_auto_ctsrts(struct hci_h4p_info *info, int on, u8 which);
++void hci_h4p_set_auto_ctsrts(struct hci_h4p_info *info, int on, u8 which);
++void hci_h4p_change_speed(struct hci_h4p_info *info, unsigned long speed);
++int hci_h4p_reset_uart(struct hci_h4p_info *info);
++int hci_h4p_init_uart(struct hci_h4p_info *info);
++
++#endif /* __DRIVERS_BLUETOOTH_HCI_H4P_H */
+Index: linux-2.6.35/drivers/bluetooth/hci_h4p/Makefile
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.35/drivers/bluetooth/hci_h4p/Makefile 2010-08-08 12:57:27.000000000 +0200
+@@ -0,0 +1,7 @@
++#
++# Makefile for the Linux Bluetooth HCI device drivers.
++#
++
++obj-$(CONFIG_BT_HCIH4P) += hci_h4p.o
++
++hci_h4p-objs := core.o fw.o uart.o sysfs.o fw-ti.o fw-csr.o
+Index: linux-2.6.35/drivers/bluetooth/hci_h4p/sysfs.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.35/drivers/bluetooth/hci_h4p/sysfs.c 2010-08-08 12:57:27.000000000 +0200
+@@ -0,0 +1,84 @@
++/*
++ * This file is part of hci_h4p bluetooth driver
++ *
++ * Copyright (C) 2005, 2006 Nokia Corporation.
++ *
++ * Contact: Ville Tervo <ville.tervo@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
++ * 02110-1301 USA
++ *
++ */
++
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/device.h>
++#include <linux/platform_device.h>
++
++#include "hci_h4p.h"
++
++#ifdef CONFIG_SYSFS
++
++static ssize_t hci_h4p_store_bdaddr(struct device *dev, struct device_attribute *attr,
++ const char *buf, size_t count)
++{
++ struct hci_h4p_info *info = (struct hci_h4p_info*)dev_get_drvdata(dev);
++ unsigned int bdaddr[6];
++ int ret, i;
++
++ dev_info(info->dev, "HCI_H4P_STORE_BDADDR called\n");
++
++ ret = sscanf(buf, "%2x:%2x:%2x:%2x:%2x:%2x\n",
++ &bdaddr[0], &bdaddr[1], &bdaddr[2],
++ &bdaddr[3], &bdaddr[4], &bdaddr[5]);
++
++ if (ret != 6) {
++ dev_info(info->dev, "bdaddr isn't found\n");
++ return -EINVAL;
++ }
++
++ //for (i = 0; i < 6; i++)
++ //info->bdaddr[i] = bdaddr[i] & 0xff;
++
++ info->bdaddr[0] = 0x00;
++ info->bdaddr[1] = 0x1D;
++ info->bdaddr[2] = 0x6E;
++ info->bdaddr[3] = 0xD4;
++ info->bdaddr[4] = 0xF0;
++ info->bdaddr[5] = 0x37;
++
++ return count;
++}
++
++static ssize_t hci_h4p_show_bdaddr(struct device *dev, struct device_attribute *attr,
++ char *buf)
++{
++ struct hci_h4p_info *info = (struct hci_h4p_info*)dev_get_drvdata(dev);
++
++ return sprintf(buf, "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
++ info->bdaddr[0],
++ info->bdaddr[1],
++ info->bdaddr[2],
++ info->bdaddr[3],
++ info->bdaddr[4],
++ info->bdaddr[5]);
++}
++
++static DEVICE_ATTR(bdaddr, S_IRUGO | S_IWUSR, hci_h4p_show_bdaddr, hci_h4p_store_bdaddr);
++int hci_h4p_sysfs_create_files(struct device *dev)
++{
++ return device_create_file(dev, &dev_attr_bdaddr);
++}
++
++#endif
+Index: linux-2.6.35/drivers/bluetooth/hci_h4p/uart.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.35/drivers/bluetooth/hci_h4p/uart.c 2010-08-08 12:57:28.000000000 +0200
+@@ -0,0 +1,169 @@
++/*
++ * This file is part of hci_h4p bluetooth driver
++ *
++ * Copyright (C) 2005, 2006 Nokia Corporation.
++ *
++ * Contact: Ville Tervo <ville.tervo@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
++ * 02110-1301 USA
++ *
++ */
++
++#include <linux/serial_reg.h>
++#include <linux/delay.h>
++#include <linux/clk.h>
++
++#include <asm/io.h>
++
++#include "hci_h4p.h"
++
++inline void hci_h4p_outb(struct hci_h4p_info *info, unsigned int offset, u8 val)
++{
++ offset <<= 2;
++ __raw_writeb(val, info->uart_base + offset);
++ //outb(val, info->uart_base + (offset << 2));
++}
++
++inline u8 hci_h4p_inb(struct hci_h4p_info *info, unsigned int offset)
++{
++ offset <<= 2;
++ return (u8)__raw_readb(info->uart_base + offset);
++ //return (unsigned int)__raw_readb(up->membase + offset);
++ //return inb(info->uart_base + (offset << 2));
++}
++
++void hci_h4p_set_rts(struct hci_h4p_info *info, int active)
++{
++ u8 b;
++
++ b = hci_h4p_inb(info, UART_MCR);
++ if (active)
++ b |= UART_MCR_RTS;
++ else
++ b &= ~UART_MCR_RTS;
++ hci_h4p_outb(info, UART_MCR, b);
++}
++
++int hci_h4p_wait_for_cts(struct hci_h4p_info *info, int active,
++ int timeout_ms)
++{
++ int okay;
++ unsigned long timeout;
++
++ okay = 0;
++ timeout = jiffies + msecs_to_jiffies(timeout_ms);
++ for (;;) {
++ int state;
++
++ state = hci_h4p_inb(info, UART_MSR) & UART_MSR_CTS;
++ if (active) {
++ if (state)
++ return 0;
++ } else {
++ if (!state)
++ return 0;
++ }
++ if (time_after(jiffies, timeout))
++ return -ETIMEDOUT;
++ }
++}
++
++void __hci_h4p_set_auto_ctsrts(struct hci_h4p_info *info, int on, u8 which)
++{
++ u8 lcr, b;
++
++ lcr = hci_h4p_inb(info, UART_LCR);
++ hci_h4p_outb(info, UART_LCR, 0xbf);
++ b = hci_h4p_inb(info, UART_EFR);
++ if (on)
++ b |= which;
++ else
++ b &= ~which;
++ hci_h4p_outb(info, UART_EFR, b);
++ hci_h4p_outb(info, UART_LCR, lcr);
++}
++
++void hci_h4p_set_auto_ctsrts(struct hci_h4p_info *info, int on, u8 which)
++{
++ unsigned long flags;
++
++ spin_lock_irqsave(&info->lock, flags);
++ __hci_h4p_set_auto_ctsrts(info, on, which);
++ spin_unlock_irqrestore(&info->lock, flags);
++}
++
++void hci_h4p_change_speed(struct hci_h4p_info *info, unsigned long speed)
++{
++ unsigned int divisor;
++ u8 lcr, mdr1;
++
++ NBT_DBG("Setting speed %lu\n", speed);
++
++ if (speed >= 460800) {
++ divisor = UART_CLOCK / 13 / speed;
++ mdr1 = 3;
++ } else {
++ divisor = UART_CLOCK / 16 / speed;
++ mdr1 = 0;
++ }
++
++ hci_h4p_outb(info, UART_OMAP_MDR1, 7); /* Make sure UART mode is disabled */
++ lcr = hci_h4p_inb(info, UART_LCR);
++ hci_h4p_outb(info, UART_LCR, UART_LCR_DLAB); /* Set DLAB */
++ hci_h4p_outb(info, UART_DLL, divisor & 0xff); /* Set speed */
++ hci_h4p_outb(info, UART_DLM, divisor >> 8);
++ hci_h4p_outb(info, UART_LCR, lcr);
++ hci_h4p_outb(info, UART_OMAP_MDR1, mdr1); /* Make sure UART mode is enabled */
++}
++
++int hci_h4p_reset_uart(struct hci_h4p_info *info)
++{
++ int count = 0;
++
++ /* Reset the UART */
++ hci_h4p_outb(info, UART_OMAP_SYSC, UART_SYSC_OMAP_RESET);
++ while (!(hci_h4p_inb(info, UART_OMAP_SYSS) & UART_SYSS_RESETDONE)) {
++ if (count++ > 20000) {
++ dev_err(info->dev, "hci_h4p: UART reset timeout\n");
++ return -ENODEV;
++ }
++ udelay(1);
++ }
++
++ return 0;
++}
++
++int hci_h4p_init_uart(struct hci_h4p_info *info)
++{
++ int err;
++
++ err = hci_h4p_reset_uart(info);
++ if (err < 0)
++ return err;
++
++ /* Enable and setup FIFO */
++ hci_h4p_outb(info, UART_LCR, UART_LCR_WLEN8);
++ hci_h4p_outb(info, UART_OMAP_MDR1, 0x00); /* Make sure UART mode is enabled */
++ hci_h4p_outb(info, UART_OMAP_SCR, 0x80);
++ hci_h4p_outb(info, UART_EFR, UART_EFR_ECB);
++ hci_h4p_outb(info, UART_MCR, UART_MCR_TCRTLR);
++ hci_h4p_outb(info, UART_TI752_TLR, 0x1f);
++ hci_h4p_outb(info, UART_TI752_TCR, 0xef);
++ hci_h4p_outb(info, UART_FCR, UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR |
++ UART_FCR_CLEAR_XMIT | UART_FCR_R_TRIG_00);
++ hci_h4p_outb(info, UART_IER, UART_IER_RDI);
++
++ return 0;
++}
+Index: linux-2.6.35/drivers/bluetooth/Kconfig
+===================================================================
+--- linux-2.6.35.orig/drivers/bluetooth/Kconfig 2010-08-08 12:56:10.000000000 +0200
++++ linux-2.6.35/drivers/bluetooth/Kconfig 2010-08-08 12:57:29.000000000 +0200
+@@ -161,6 +161,16 @@ config BT_HCIBTUART
+ Say Y here to compile support for HCI UART devices into the
+ kernel or say M to compile it as module (btuart_cs).
+
++config BT_HCIH4P
++ tristate "HCI driver with H4 Nokia extensions"
++ depends on BT && ARCH_OMAP
++ help
++ Bluetooth HCI driver with H4 extensions. This driver provides
++ support for H4+ Bluetooth chip with vendor-specific H4 extensions.
++
++ Say Y here to compile support for h4 extended devices into the kernel
++ or say M to compile it as module (hci_h4p).
++
+ config BT_HCIVHCI
+ tristate "HCI VHCI (Virtual HCI device) driver"
+ help
+Index: linux-2.6.35/drivers/bluetooth/Makefile
+===================================================================
+--- linux-2.6.35.orig/drivers/bluetooth/Makefile 2010-08-08 12:56:10.000000000 +0200
++++ linux-2.6.35/drivers/bluetooth/Makefile 2010-08-08 12:57:29.000000000 +0200
+@@ -11,6 +11,7 @@ obj-$(CONFIG_BT_HCIDTL1) += dtl1_cs.o
+ obj-$(CONFIG_BT_HCIBT3C) += bt3c_cs.o
+ obj-$(CONFIG_BT_HCIBLUECARD) += bluecard_cs.o
+ obj-$(CONFIG_BT_HCIBTUART) += btuart_cs.o
++obj-$(CONFIG_BT_HCIH4P) += hci_h4p/
+
+ obj-$(CONFIG_BT_HCIBTUSB) += btusb.o
+ obj-$(CONFIG_BT_HCIBTSDIO) += btsdio.o
generated by cgit v1.2.3 (git 2.46.0) at 2024-12-26 03:50:05 +0000