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When driver is sending a command or data and the firmware is also sending a sleep event, sometimes it is observed that driver will continue to send the command/data to firmware right after processing sleep event. Once sleep event is processed driver is not supposed to send anything because firmware is in sleep state after that. Previously interrupt processing was done in SDIO interrupt callback handler. Now it is done in btmrvl driver main thread to solve the cross-sending properly. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
149 lines
3.8 KiB
C
149 lines
3.8 KiB
C
/*
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* Marvell Bluetooth driver: global definitions & declarations
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*
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* Copyright (C) 2009, Marvell International Ltd.
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*
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* This software file (the "File") is distributed by Marvell International
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* Ltd. under the terms of the GNU General Public License Version 2, June 1991
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* (the "License"). You may use, redistribute and/or modify this File in
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* accordance with the terms and conditions of the License, a copy of which
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* is available by writing to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
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* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
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*
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*
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* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
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* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
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* this warranty disclaimer.
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*
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*/
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#include <linux/kthread.h>
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#include <linux/bitops.h>
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#include <linux/slab.h>
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#include <net/bluetooth/bluetooth.h>
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#define BTM_HEADER_LEN 4
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#define BTM_UPLD_SIZE 2312
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/* Time to wait until Host Sleep state change in millisecond */
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#define WAIT_UNTIL_HS_STATE_CHANGED 5000
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/* Time to wait for command response in millisecond */
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#define WAIT_UNTIL_CMD_RESP 5000
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struct btmrvl_thread {
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struct task_struct *task;
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wait_queue_head_t wait_q;
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void *priv;
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};
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struct btmrvl_device {
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void *card;
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struct hci_dev *hcidev;
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u8 dev_type;
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u8 tx_dnld_rdy;
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u8 psmode;
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u8 pscmd;
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u8 hsmode;
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u8 hscmd;
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/* Low byte is gap, high byte is GPIO */
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u16 gpio_gap;
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u8 hscfgcmd;
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u8 sendcmdflag;
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};
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struct btmrvl_adapter {
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u32 int_count;
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struct sk_buff_head tx_queue;
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u8 psmode;
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u8 ps_state;
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u8 hs_state;
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u8 wakeup_tries;
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wait_queue_head_t cmd_wait_q;
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u8 cmd_complete;
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};
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struct btmrvl_private {
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struct btmrvl_device btmrvl_dev;
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struct btmrvl_adapter *adapter;
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struct btmrvl_thread main_thread;
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int (*hw_host_to_card) (struct btmrvl_private *priv,
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u8 *payload, u16 nb);
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int (*hw_wakeup_firmware) (struct btmrvl_private *priv);
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int (*hw_process_int_status) (struct btmrvl_private *priv);
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spinlock_t driver_lock; /* spinlock used by driver */
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#ifdef CONFIG_DEBUG_FS
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void *debugfs_data;
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#endif
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};
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#define MRVL_VENDOR_PKT 0xFE
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/* Bluetooth commands */
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#define BT_CMD_AUTO_SLEEP_MODE 0x23
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#define BT_CMD_HOST_SLEEP_CONFIG 0x59
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#define BT_CMD_HOST_SLEEP_ENABLE 0x5A
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#define BT_CMD_MODULE_CFG_REQ 0x5B
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/* Sub-commands: Module Bringup/Shutdown Request/Response */
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#define MODULE_BRINGUP_REQ 0xF1
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#define MODULE_BROUGHT_UP 0x00
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#define MODULE_ALREADY_UP 0x0C
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#define MODULE_SHUTDOWN_REQ 0xF2
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#define BT_EVENT_POWER_STATE 0x20
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/* Bluetooth Power States */
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#define BT_PS_ENABLE 0x02
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#define BT_PS_DISABLE 0x03
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#define BT_PS_SLEEP 0x01
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#define OGF 0x3F
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/* Host Sleep states */
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#define HS_ACTIVATED 0x01
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#define HS_DEACTIVATED 0x00
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/* Power Save modes */
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#define PS_SLEEP 0x01
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#define PS_AWAKE 0x00
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struct btmrvl_cmd {
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__le16 ocf_ogf;
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u8 length;
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u8 data[4];
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} __attribute__ ((packed));
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struct btmrvl_event {
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u8 ec; /* event counter */
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u8 length;
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u8 data[4];
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} __attribute__ ((packed));
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/* Prototype of global function */
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int btmrvl_register_hdev(struct btmrvl_private *priv);
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struct btmrvl_private *btmrvl_add_card(void *card);
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int btmrvl_remove_card(struct btmrvl_private *priv);
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void btmrvl_interrupt(struct btmrvl_private *priv);
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void btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb);
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int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb);
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int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd);
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int btmrvl_enable_ps(struct btmrvl_private *priv);
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int btmrvl_prepare_command(struct btmrvl_private *priv);
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#ifdef CONFIG_DEBUG_FS
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void btmrvl_debugfs_init(struct hci_dev *hdev);
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void btmrvl_debugfs_remove(struct hci_dev *hdev);
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#endif
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