diff options
Diffstat (limited to 'drivers/staging/ti-st')
| -rw-r--r-- | drivers/staging/ti-st/Kconfig | 14 | ||||
| -rw-r--r-- | drivers/staging/ti-st/Makefile | 5 | ||||
| -rw-r--r-- | drivers/staging/ti-st/TODO | 8 | ||||
| -rw-r--r-- | drivers/staging/ti-st/bt_drv.c | 509 | ||||
| -rw-r--r-- | drivers/staging/ti-st/bt_drv.h | 61 | ||||
| -rw-r--r-- | drivers/staging/ti-st/sysfs-uim | 28 |
6 files changed, 0 insertions, 625 deletions
diff --git a/drivers/staging/ti-st/Kconfig b/drivers/staging/ti-st/Kconfig deleted file mode 100644 index 074b8e89e91..00000000000 --- a/drivers/staging/ti-st/Kconfig +++ /dev/null @@ -1,14 +0,0 @@ -# -# TI's shared transport line discipline and the protocol -# drivers (BT, FM and GPS) -# -menu "Texas Instruments shared transport line discipline" -config ST_BT - tristate "BlueZ bluetooth driver for ST" - depends on BT && RFKILL - select TI_ST - help - This enables the Bluetooth driver for TI BT/FM/GPS combo devices. - This makes use of shared transport line discipline core driver to - communicate with the BT core of the combo chip. -endmenu diff --git a/drivers/staging/ti-st/Makefile b/drivers/staging/ti-st/Makefile deleted file mode 100644 index 5f11b82c016..00000000000 --- a/drivers/staging/ti-st/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# -# Makefile for TI's shared transport line discipline -# and its protocol drivers (BT, FM, GPS) -# -obj-$(CONFIG_ST_BT) += bt_drv.o diff --git a/drivers/staging/ti-st/TODO b/drivers/staging/ti-st/TODO deleted file mode 100644 index ebfd6bb6017..00000000000 --- a/drivers/staging/ti-st/TODO +++ /dev/null @@ -1,8 +0,0 @@ -TODO: - -1. Step up and maintain this driver to ensure that it continues -to work. Having the hardware for this is pretty much a -requirement. If this does not happen, the will be removed in -the 2.6.35 kernel release. - -Please send patches to Greg Kroah-Hartman <greg@kroah.com>. diff --git a/drivers/staging/ti-st/bt_drv.c b/drivers/staging/ti-st/bt_drv.c deleted file mode 100644 index 75065bf39e5..00000000000 --- a/drivers/staging/ti-st/bt_drv.c +++ /dev/null @@ -1,509 +0,0 @@ -/* - * Texas Instrument's Bluetooth Driver For Shared Transport. - * - * Bluetooth Driver acts as interface between HCI CORE and - * TI Shared Transport Layer. - * - * Copyright (C) 2009 Texas Instruments - * - * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#include <net/bluetooth/bluetooth.h> -#include <net/bluetooth/hci_core.h> - -#include <linux/ti_wilink_st.h> -#include "bt_drv.h" - -/* Define this macro to get debug msg */ -#undef DEBUG - -#ifdef DEBUG -#define BT_DRV_DBG(fmt, arg...) printk(KERN_INFO "(btdrv):"fmt"\n" , ## arg) -#define BTDRV_API_START() printk(KERN_INFO "(btdrv): %s Start\n", \ - __func__) -#define BTDRV_API_EXIT(errno) printk(KERN_INFO "(btdrv): %s Exit(%d)\n", \ - __func__, errno) -#else -#define BT_DRV_DBG(fmt, arg...) -#define BTDRV_API_START() -#define BTDRV_API_EXIT(errno) -#endif - -#define BT_DRV_ERR(fmt, arg...) printk(KERN_ERR "(btdrv):"fmt"\n" , ## arg) - -static int reset; -static struct hci_st *hst; - -/* Increments HCI counters based on pocket ID (cmd,acl,sco) */ -static inline void hci_st_tx_complete(struct hci_st *hst, int pkt_type) -{ - struct hci_dev *hdev; - - BTDRV_API_START(); - - hdev = hst->hdev; - - /* Update HCI stat counters */ - switch (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.cmd_tx++; - break; - } - - BTDRV_API_EXIT(0); -} - -/* ------- Interfaces to Shared Transport ------ */ - -/* Called by ST layer to indicate protocol registration completion - * status.hci_st_open() function will wait for signal from this - * API when st_register() function returns ST_PENDING. - */ -static void hci_st_registration_completion_cb(void *priv_data, char data) -{ - struct hci_st *lhst = (struct hci_st *)priv_data; - BTDRV_API_START(); - - /* hci_st_open() function needs value of 'data' to know - * the registration status(success/fail),So have a back - * up of it. - */ - lhst->streg_cbdata = data; - - /* Got a feedback from ST for BT driver registration - * request.Wackup hci_st_open() function to continue - * it's open operation. - */ - complete(&lhst->wait_for_btdrv_reg_completion); - - BTDRV_API_EXIT(0); -} - -/* Called by Shared Transport layer when receive data is - * available */ -static long hci_st_receive(void *priv_data, struct sk_buff *skb) -{ - int err; - int len; - struct hci_st *lhst = (struct hci_st *)priv_data; - - BTDRV_API_START(); - - err = 0; - len = 0; - - if (skb == NULL) { - BT_DRV_ERR("Invalid SKB received from ST"); - BTDRV_API_EXIT(-EFAULT); - return -EFAULT; - } - if (!lhst) { - kfree_skb(skb); - BT_DRV_ERR("Invalid hci_st memory,freeing SKB"); - BTDRV_API_EXIT(-EFAULT); - return -EFAULT; - } - if (!test_bit(BT_DRV_RUNNING, &lhst->flags)) { - kfree_skb(skb); - BT_DRV_ERR("Device is not running,freeing SKB"); - BTDRV_API_EXIT(-EINVAL); - return -EINVAL; - } - - len = skb->len; - skb->dev = (struct net_device *)lhst->hdev; - - /* Forward skb to HCI CORE layer */ - err = hci_recv_frame(skb); - if (err) { - kfree_skb(skb); - BT_DRV_ERR("Unable to push skb to HCI CORE(%d),freeing SKB", - err); - BTDRV_API_EXIT(err); - return err; - } - lhst->hdev->stat.byte_rx += len; - - BTDRV_API_EXIT(0); - return 0; -} - -/* ------- Interfaces to HCI layer ------ */ - -/* Called from HCI core to initialize the device */ -static int hci_st_open(struct hci_dev *hdev) -{ - static struct st_proto_s hci_st_proto; - unsigned long timeleft; - int err; - - BTDRV_API_START(); - - err = 0; - - BT_DRV_DBG("%s %p", hdev->name, hdev); - - /* Already registered with ST ? */ - if (test_bit(BT_ST_REGISTERED, &hst->flags)) { - BT_DRV_ERR("Registered with ST already,open called again?"); - BTDRV_API_EXIT(0); - return 0; - } - - /* Populate BT driver info required by ST */ - memset(&hci_st_proto, 0, sizeof(hci_st_proto)); - - /* BT driver ID */ - hci_st_proto.type = ST_BT; - - /* Receive function which called from ST */ - hci_st_proto.recv = hci_st_receive; - - /* Packet match function may used in future */ - hci_st_proto.match_packet = NULL; - - /* Callback to be called when registration is pending */ - hci_st_proto.reg_complete_cb = hci_st_registration_completion_cb; - - /* This is write function pointer of ST. BT driver will make use of this - * for sending any packets to chip. ST will assign and give to us, so - * make it as NULL */ - hci_st_proto.write = NULL; - - /* send in the hst to be received at registration complete callback - * and during st's receive - */ - hci_st_proto.priv_data = hst; - - /* Register with ST layer */ - err = st_register(&hci_st_proto); - if (err == -EINPROGRESS) { - /* Prepare wait-for-completion handler data structures. - * Needed to syncronize this and st_registration_completion_cb() - * functions. - */ - init_completion(&hst->wait_for_btdrv_reg_completion); - - /* Reset ST registration callback status flag , this value - * will be updated in hci_st_registration_completion_cb() - * function whenever it called from ST driver. - */ - hst->streg_cbdata = -EINPROGRESS; - - /* ST is busy with other protocol registration(may be busy with - * firmware download).So,Wait till the registration callback - * (passed as a argument to st_register() function) getting - * called from ST. - */ - BT_DRV_DBG(" %s waiting for reg completion signal from ST", - __func__); - - timeleft = - wait_for_completion_timeout - (&hst->wait_for_btdrv_reg_completion, - msecs_to_jiffies(BT_REGISTER_TIMEOUT)); - if (!timeleft) { - BT_DRV_ERR("Timeout(%ld sec),didn't get reg" - "completion signal from ST", - BT_REGISTER_TIMEOUT / 1000); - BTDRV_API_EXIT(-ETIMEDOUT); - return -ETIMEDOUT; - } - - /* Is ST registration callback called with ERROR value? */ - if (hst->streg_cbdata != 0) { - BT_DRV_ERR("ST reg completion CB called with invalid" - "status %d", hst->streg_cbdata); - BTDRV_API_EXIT(-EAGAIN); - return -EAGAIN; - } - err = 0; - } else if (err == -1) { - BT_DRV_ERR("st_register failed %d", err); - BTDRV_API_EXIT(-EAGAIN); - return -EAGAIN; - } - - /* Do we have proper ST write function? */ - if (hci_st_proto.write != NULL) { - /* We need this pointer for sending any Bluetooth pkts */ - hst->st_write = hci_st_proto.write; - } else { - BT_DRV_ERR("failed to get ST write func pointer"); - - /* Undo registration with ST */ - err = st_unregister(ST_BT); - if (err < 0) - BT_DRV_ERR("st_unregister failed %d", err); - - hst->st_write = NULL; - BTDRV_API_EXIT(-EAGAIN); - return -EAGAIN; - } - - /* Registration with ST layer is completed successfully, - * now chip is ready to accept commands from HCI CORE. - * Mark HCI Device flag as RUNNING - */ - set_bit(HCI_RUNNING, &hdev->flags); - - /* Registration with ST successful */ - set_bit(BT_ST_REGISTERED, &hst->flags); - - BTDRV_API_EXIT(err); - return err; -} - -/* Close device */ -static int hci_st_close(struct hci_dev *hdev) -{ - int err; - - BTDRV_API_START(); - - err = 0; - - /* Unregister from ST layer */ - if (test_and_clear_bit(BT_ST_REGISTERED, &hst->flags)) { - err = st_unregister(ST_BT); - if (err != 0) { - BT_DRV_ERR("st_unregister failed %d", err); - BTDRV_API_EXIT(-EBUSY); - return -EBUSY; - } - } - - hst->st_write = NULL; - - /* ST layer would have moved chip to inactive state. - * So,clear HCI device RUNNING flag. - */ - if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) { - BTDRV_API_EXIT(0); - return 0; - } - - BTDRV_API_EXIT(err); - return err; -} - -/* Called from HCI CORE , Sends frames to Shared Transport */ -static int hci_st_send_frame(struct sk_buff *skb) -{ - struct hci_dev *hdev; - struct hci_st *hst; - long len; - - BTDRV_API_START(); - - if (skb == NULL) { - BT_DRV_ERR("Invalid skb received from HCI CORE"); - BTDRV_API_EXIT(-ENOMEM); - return -ENOMEM; - } - hdev = (struct hci_dev *)skb->dev; - if (!hdev) { - BT_DRV_ERR("SKB received for invalid HCI Device (hdev=NULL)"); - BTDRV_API_EXIT(-ENODEV); - return -ENODEV; - } - if (!test_bit(HCI_RUNNING, &hdev->flags)) { - BT_DRV_ERR("Device is not running"); - BTDRV_API_EXIT(-EBUSY); - return -EBUSY; - } - - hst = (struct hci_st *)hdev->driver_data; - - /* Prepend skb with frame type */ - memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1); - - BT_DRV_DBG(" %s: type %d len %d", hdev->name, bt_cb(skb)->pkt_type, - skb->len); - - /* Insert skb to shared transport layer's transmit queue. - * Freeing skb memory is taken care in shared transport layer, - * so don't free skb memory here. - */ - if (!hst->st_write) { - kfree_skb(skb); - BT_DRV_ERR(" Can't write to ST, st_write null?"); - BTDRV_API_EXIT(-EAGAIN); - return -EAGAIN; - } - len = hst->st_write(skb); - if (len < 0) { - /* Something went wrong in st write , free skb memory */ - kfree_skb(skb); - BT_DRV_ERR(" ST write failed (%ld)", len); - BTDRV_API_EXIT(-EAGAIN); - return -EAGAIN; - } - - /* ST accepted our skb. So, Go ahead and do rest */ - hdev->stat.byte_tx += len; - hci_st_tx_complete(hst, bt_cb(skb)->pkt_type); - - BTDRV_API_EXIT(0); - return 0; -} - -static void hci_st_destruct(struct hci_dev *hdev) -{ - BTDRV_API_START(); - - if (!hdev) { - BT_DRV_ERR("Destruct called with invalid HCI Device" - "(hdev=NULL)"); - BTDRV_API_EXIT(0); - return; - } - - BT_DRV_DBG("%s", hdev->name); - - /* free hci_st memory */ - if (hdev->driver_data != NULL) - kfree(hdev->driver_data); - - BTDRV_API_EXIT(0); - return; -} - -/* Creates new HCI device */ -static int hci_st_register_dev(struct hci_st *hst) -{ - struct hci_dev *hdev; - - BTDRV_API_START(); - - /* Initialize and register HCI device */ - hdev = hci_alloc_dev(); - if (!hdev) { - BT_DRV_ERR("Can't allocate HCI device"); - BTDRV_API_EXIT(-ENOMEM); - return -ENOMEM; - } - BT_DRV_DBG(" HCI device allocated. hdev= %p", hdev); - - hst->hdev = hdev; - hdev->bus = HCI_UART; - hdev->driver_data = hst; - hdev->open = hci_st_open; - hdev->close = hci_st_close; - hdev->flush = NULL; - hdev->send = hci_st_send_frame; - hdev->destruct = hci_st_destruct; - hdev->owner = THIS_MODULE; - - if (reset) - set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); - - if (hci_register_dev(hdev) < 0) { - BT_DRV_ERR("Can't register HCI device"); - hci_free_dev(hdev); - BTDRV_API_EXIT(-ENODEV); - return -ENODEV; - } - - BT_DRV_DBG(" HCI device registered. hdev= %p", hdev); - BTDRV_API_EXIT(0); - return 0; -} - -/* ------- Module Init interface ------ */ - -static int __init bt_drv_init(void) -{ - int err; - - BTDRV_API_START(); - - err = 0; - - BT_DRV_DBG(" Bluetooth Driver Version %s", VERSION); - - /* Allocate local resource memory */ - hst = kzalloc(sizeof(struct hci_st), GFP_KERNEL); - if (!hst) { - BT_DRV_ERR("Can't allocate control structure"); - BTDRV_API_EXIT(-ENFILE); - return -ENFILE; - } - - /* Expose "hciX" device to user space */ - err = hci_st_register_dev(hst); - if (err) { - /* Release local resource memory */ - kfree(hst); - - BT_DRV_ERR("Unable to expose hci0 device(%d)", err); - BTDRV_API_EXIT(err); - return err; - } - set_bit(BT_DRV_RUNNING, &hst->flags); - - BTDRV_API_EXIT(err); - return err; -} - -/* ------- Module Exit interface ------ */ - -static void __exit bt_drv_exit(void) -{ - BTDRV_API_START(); - - /* Deallocate local resource's memory */ - if (hst) { - struct hci_dev *hdev = hst->hdev; - - if (hdev == NULL) { - BT_DRV_ERR("Invalid hdev memory"); - kfree(hst); - } else { - hci_st_close(hdev); - if (test_and_clear_bit(BT_DRV_RUNNING, &hst->flags)) { - /* Remove HCI device (hciX) created - * in module init. - */ - hci_unregister_dev(hdev); - - /* Free HCI device memory */ - hci_free_dev(hdev); - } - } - } - BTDRV_API_EXIT(0); -} - -module_init(bt_drv_init); -module_exit(bt_drv_exit); - -/* ------ Module Info ------ */ - -module_param(reset, bool, 0644); -MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); -MODULE_AUTHOR("Raja Mani <raja_mani@ti.com>"); -MODULE_DESCRIPTION("Bluetooth Driver for TI Shared Transport" VERSION); -MODULE_VERSION(VERSION); -MODULE_LICENSE("GPL"); diff --git a/drivers/staging/ti-st/bt_drv.h b/drivers/staging/ti-st/bt_drv.h deleted file mode 100644 index a0beebec846..00000000000 --- a/drivers/staging/ti-st/bt_drv.h +++ /dev/null @@ -1,61 +0,0 @@ -/* - * Texas Instrument's Bluetooth Driver For Shared Transport. - * - * Bluetooth Driver acts as interface between HCI CORE and - * TI Shared Transport Layer. - * - * Copyright (C) 2009 Texas Instruments - * - * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#ifndef _BT_DRV_H -#define _BT_DRV_H - -/* Bluetooth Driver Version */ -#define VERSION "1.0" - -/* Defines number of seconds to wait for reg completion - * callback getting called from ST (in case,registration - * with ST returns PENDING status) - */ -#define BT_REGISTER_TIMEOUT msecs_to_jiffies(6000) /* 6 sec */ - -/* BT driver's local status */ -#define BT_DRV_RUNNING 0 -#define BT_ST_REGISTERED 1 - -/* BT driver operation structure */ -struct hci_st { - - /* hci device pointer which binds to bt driver */ - struct hci_dev *hdev; - - /* used locally,to maintain various BT driver status */ - unsigned long flags; - - /* to hold ST registration callback status */ - char streg_cbdata; - - /* write function pointer of ST driver */ - long (*st_write) (struct sk_buff *); - - /* Wait on comepletion handler needed to synchronize - * hci_st_open() and hci_st_registration_completion_cb() - * functions.*/ - struct completion wait_for_btdrv_reg_completion; -}; - -#endif diff --git a/drivers/staging/ti-st/sysfs-uim b/drivers/staging/ti-st/sysfs-uim deleted file mode 100644 index 626bda51ee8..00000000000 --- a/drivers/staging/ti-st/sysfs-uim +++ /dev/null @@ -1,28 +0,0 @@ -What: /sys/class/rfkill/rfkill%d/ -Date: March 22 -Contact: Pavan Savoy <pavan_savoy@ti.com> -Description: - Creates the rfkill entries for Radio apps like - BT app, FM app or GPS app to toggle corresponding - cores of the chip - -What: /dev/rfkill -Date: March 22 -Contact: Pavan Savoy <pavan_savoy@ti.com> -Description: - A daemon which maintains the ldisc installation and - uninstallation would be ppolling on this device and listening - on events which would suggest either to install or un-install - line discipline - -What: /sys/kernel/debug/ti-st/version -Contact: Pavan Savoy <pavan_savoy@ti.com> -Description: - WiLink chip's ROM version exposed to user-space for some - proprietary protocol stacks to make use of. - -What: /sys/kernel/debug/ti-st/protocols -Contact: Pavan Savoy <pavan_savoy@ti.com> -Description: - The reason for chip being ON, the list of protocols registered. - |