diff options
Diffstat (limited to 'nuttx')
| -rw-r--r-- | nuttx/ChangeLog | 13 | ||||
| -rw-r--r-- | nuttx/Documentation/NuttX.html | 14 | ||||
| -rwxr-xr-x | nuttx/configs/olimex-lpc1766stk/wlan/defconfig | 2 | ||||
| -rw-r--r-- | nuttx/configs/qemu-i486/README.txt | 22 | ||||
| -rw-r--r-- | nuttx/drivers/usbhost/Make.defs | 8 | ||||
| -rwxr-xr-x | nuttx/drivers/usbhost/usbhost_rtl8187.c | 1772 |
6 files changed, 52 insertions, 1779 deletions
diff --git a/nuttx/ChangeLog b/nuttx/ChangeLog index 2059041585..f89473ba24 100644 --- a/nuttx/ChangeLog +++ b/nuttx/ChangeLog @@ -1579,3 +1579,16 @@ switching. Basically, the logic was missing the cases to handle the differing stack frames when a priority change occurs and when no priority change occurs. + * configs/qemu-i486/ostest and nsh -- The QEMU i486 port is complete. + it now passes the OS test and supports the NuttShell (NSH). + * misc/drivers -- Created a new directory to hold non-BSD licensed + drivers that may be added into NuttX via an installation script. + * drivers/usbhost/usbhost_rtl8187.c -- A decision was made to + incorporate code taken from the Linux kernel. That changes the + licensing on this module to GPL. To avoid licensing contamination, + this driver was moved to misc/drivers/rtl8187x *prior* to adding + and of the GPL log. There is an INSTALL.sh script at the location + where the GPL driver(s) can be re-installed into the NuttX source + tree. By re-installing the driver, you agree to the GPL licsensing + and all of its implications. + diff --git a/nuttx/Documentation/NuttX.html b/nuttx/Documentation/NuttX.html index 59c8686f51..ac90b80039 100644 --- a/nuttx/Documentation/NuttX.html +++ b/nuttx/Documentation/NuttX.html @@ -8,7 +8,7 @@ <tr align="center" bgcolor="#e4e4e4"> <td> <h1><big><font color="#3c34ec"><i>NuttX RTOS</i></font></big></h1> - <p>Last Updated: March 17, 2011</p> + <p>Last Updated: March 18, 2011</p> </td> </tr> </table> @@ -2206,6 +2206,18 @@ nuttx-5.20 2011-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr> switching. Basically, the logic was missing the cases to handle the differing stack frames when a priority change occurs and when no priority change occurs. + * configs/qemu-i486/ostest and nsh -- The QEMU i486 port is complete. + it now passes the OS test and supports the NuttShell (NSH). + * misc/drivers -- Created a new directory to hold non-BSD licensed + drivers that may be added into NuttX via an installation script. + * drivers/usbhost/usbhost_rtl8187.c -- A decision was made to + incorporate code taken from the Linux kernel. That changes the + licensing on this module to GPL. To avoid licensing contamination, + this driver was moved to misc/drivers/rtl8187x *prior* to adding + and of the GPL log. There is an INSTALL.sh script at the location + where the GPL driver(s) can be re-installed into the NuttX source + tree. By re-installing the driver, you agree to the GPL licsensing + and all of its implications. apps-5.20 2011-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr> diff --git a/nuttx/configs/olimex-lpc1766stk/wlan/defconfig b/nuttx/configs/olimex-lpc1766stk/wlan/defconfig index cb5e24d981..58105751c7 100755 --- a/nuttx/configs/olimex-lpc1766stk/wlan/defconfig +++ b/nuttx/configs/olimex-lpc1766stk/wlan/defconfig @@ -816,7 +816,7 @@ CONFIG_EXAMPLES_NSH_DISABLEBG=n CONFIG_EXAMPLES_NSH_ROMFSETC=n CONFIG_EXAMPLES_NSH_CONSOLE=y CONFIG_EXAMPLES_NSH_TELNET=n -CONFIG_EXAMPLES_NSH_ARCHINIT=y +CONFIG_EXAMPLES_NSH_ARCHINIT=n CONFIG_EXAMPLES_NSH_IOBUFFER_SIZE=512 CONFIG_EXAMPLES_NSH_DHCPC=n CONFIG_EXAMPLES_NSH_NOMAC=n diff --git a/nuttx/configs/qemu-i486/README.txt b/nuttx/configs/qemu-i486/README.txt index 3476f09e59..9065915344 100644 --- a/nuttx/configs/qemu-i486/README.txt +++ b/nuttx/configs/qemu-i486/README.txt @@ -14,6 +14,7 @@ Contents * Toolchains - Cygwin Buildroot Toolchain - Buildroot Instructions + * FAQ * Configurations - ostest - nsh @@ -22,7 +23,7 @@ QEMU ==== QEMU is a generic and open source machine emulator and virtualizer. Here are -some links (which are mostly outdated by the time your read this): +some links (which will probably be mostly outdated by the time your read this): Home Page: http://wiki.qemu.org/Main_Page Downloads: http://wiki.qemu.org/Download @@ -34,7 +35,7 @@ Building QEMU tar zxf qemu-0.14.0.tar.gz cd qemu-0.14.0 - ./configure + ./configure --target-list=i386-softmmu make make install @@ -62,8 +63,8 @@ Cygwin Build Problems 2. Try building QEMU with MingGW (I understand that this is difficult). NOTE: As of this writing, I have not been successful getting ANY pre-built - version of QEMU to work successful; they all fail immediately with - initialization errors. + version of QEMU to work successfully with WinXP. The same binaries work + fine on Vista, however. Running QEMU ------------ @@ -72,6 +73,13 @@ Running QEMU qemu -cpu 486 -m 2 -kernel nuttx.elf -nographic + The -nographic option redirects COM1 to your console. However, the -nographic + option does not work under Cygwin. For simple testing under Cygwin, I use + + qemu -cpu 486 -m 2 -kernel nuttx.elf -serial file:test.txt + + which will send COM1 output to the file test.txt. + Toolchains ========== @@ -125,6 +133,12 @@ Buildroot Instructions detailed PLUS some special instructions that you will need to follow if you run into problems building the toolchain for Cygwin under Windows. +FAQ +=== + +Q: I get the following error message, "undefined reference to '__stack_chk_fail'" +A: Add -fno-stack-protector to ARCHCPUFLAGS in you Make.defs file. + Configurations ============== diff --git a/nuttx/drivers/usbhost/Make.defs b/nuttx/drivers/usbhost/Make.defs index 9587cab08b..ffdb9c6515 100644 --- a/nuttx/drivers/usbhost/Make.defs +++ b/nuttx/drivers/usbhost/Make.defs @@ -36,10 +36,16 @@ USBHOST_ASRCS = USBHOST_CSRCS = hid_parser.c +# Built-in USB driver logic + ifeq ($(CONFIG_USBHOST),y) USBHOST_CSRCS += usbhost_registry.c usbhost_registerclass.c usbhost_findclass.c USBHOST_CSRCS += usbhost_enumerate.c usbhost_storage.c usbhost_hidkbd.c + +# Add-on USB driver logic (see misc/drivers) + ifeq ($(CONFIG_NET),y) - USBHOST_CSRCS += usbhost_rtl8187.c + RTL8187_CSRC := ${shell if [ -f usbhost/rtl8187x.c ]; then echo "rtl8187x.c"; fi} + USBHOST_CSRCS += $(RTL8187_CSRC) endif endif diff --git a/nuttx/drivers/usbhost/usbhost_rtl8187.c b/nuttx/drivers/usbhost/usbhost_rtl8187.c deleted file mode 100755 index 22432595d3..0000000000 --- a/nuttx/drivers/usbhost/usbhost_rtl8187.c +++ /dev/null @@ -1,1772 +0,0 @@ -/**************************************************************************** - * drivers/usbhost/usbhost_rtl8187.c - * - * Copyright (C) 2011 Gregory Nutt. All rights reserved. - * Authors: Rafael Noronha <rafael@pdsolucoes.com.br> - * Gregory Nutt <spudmonkey@racsa.co.cr> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - ****************************************************************************/ - -/* @TODO REMOVE LATER!!! */ -#define CONFIG_WLAN_IRQ 1 - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <nuttx/config.h> - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <semaphore.h> -#include <assert.h> -#include <errno.h> -#include <debug.h> - -#include <nuttx/fs.h> -#include <nuttx/arch.h> -#include <nuttx/wqueue.h> - -#include <nuttx/usb/usb.h> -#include <nuttx/usb/usbhost.h> - -#if defined(CONFIG_NET) && defined(CONFIG_NET_WLAN) - -#include <stdint.h> -#include <stdbool.h> -#include <time.h> -#include <string.h> -#include <debug.h> -#include <wdog.h> -#include <errno.h> - -#include <nuttx/irq.h> -#include <nuttx/arch.h> - -#include <net/uip/uip.h> -#include <net/uip/uip-arp.h> -#include <net/uip/uip-arch.h> - -#endif /* CONFIG_NET && CONFIG_NET_WLAN */ - -/**************************************************************************** - * Pre-processor Definitions - ****************************************************************************/ - -/* Configuration ************************************************************/ - -#ifndef CONFIG_SCHED_WORKQUEUE -# warning "Worker thread support is required (CONFIG_SCHED_WORKQUEUE)" -#endif - -/* Driver support ***********************************************************/ -/* This format is used to construct the /dev/skel[n] device driver path. It - * defined here so that it will be used consistently in all places. - */ - -#define DEV_FORMAT "/dev/wlan%c" -#define DEV_NAMELEN 12 - - -/* Used in usbhost_cfgdesc() */ - -#define USBHOST_IFFOUND 0x01 -#define USBHOST_BINFOUND 0x02 -#define USBHOST_BOUTFOUND 0x04 -#define USBHOST_ALLFOUND 0x07 - -#define USBHOST_MAX_CREFS 0x7fff - -#if defined(CONFIG_NET) && defined(CONFIG_NET_WLAN) -/* CONFIG_WLAN_NINTERFACES determines the number of physical interfaces - * that will be supported. - */ - -#ifndef CONFIG_WLAN_NINTERFACES -# define CONFIG_WLAN_NINTERFACES 1 -#endif - -/* TX poll delay = 1 seconds. CLK_TCK is the number of clock ticks per second */ - -#define WLAN_WDDELAY (1*CLK_TCK) -#define WLAN_POLLHSEC (1*2) - -/* TX timeout = 1 minute */ - -#define WLAN_TXTIMEOUT (60*CLK_TCK) - -/* This is a helper pointer for accessing the contents of the WLAN header */ - -#define BUF ((struct uip_eth_hdr *)wlan->wl_dev.d_buf) - -#endif /* CONFIG_NET && CONFIG_NET_WLAN */ - -/**************************************************************************** - * Private Types - ****************************************************************************/ - -/* This structure contains the internal, private state of the USB host class - * driver. - */ - -struct usbhost_state_s -{ - /* This is the externally visible portion of the state */ - - struct usbhost_class_s class; - - /* This is an instance of the USB host driver bound to this class instance */ - - struct usbhost_driver_s *drvr; - - /* The remainder of the fields are provide to the class driver */ - - char devchar; /* Character identifying the /dev/wlan[n] device */ - volatile bool disconnected; /* TRUE: Device has been disconnected */ - uint8_t ifno; /* Interface number */ - int16_t crefs; /* Reference count on the driver instance */ - sem_t exclsem; /* Used to maintain mutual exclusive access */ - struct work_s work; /* For interacting with the worker thread */ - FAR uint8_t *tbuffer; /* The allocated transfer buffer */ - size_t tbuflen; /* Size of the allocated transfer buffer */ - usbhost_ep_t epin; /* IN endpoint */ - usbhost_ep_t epout; /* OUT endpoint */ -}; - -#if defined(CONFIG_NET) && defined(CONFIG_NET_WLAN) - - /* The wlan_driver_s encapsulates all state information for a single hardware - * interface - */ - - struct wlan_driver_s - { - bool wl_bifup; /* true:ifup false:ifdown */ - WDOG_ID wl_txpoll; /* TX poll timer */ - WDOG_ID wl_txtimeout; /* TX timeout timer */ - - /* This holds the information visible to uIP/NuttX */ - - struct uip_driver_s wl_dev; /* Interface understood by uIP */ - }; - -#endif /* CONFIG_NET && CONFIG_NET_WLAN */ - -/**************************************************************************** - * Private Function Prototypes - ****************************************************************************/ - -/* Semaphores */ - -static void usbhost_takesem(sem_t *sem); -#define usbhost_givesem(s) sem_post(s); - -/* Memory allocation services */ - -static inline FAR struct usbhost_state_s *usbhost_allocclass(void); -static inline void usbhost_freeclass(FAR struct usbhost_state_s *class); - -/* Device name management */ - -static int usbhost_allocdevno(FAR struct usbhost_state_s *priv); -static void usbhost_freedevno(FAR struct usbhost_state_s *priv); -static inline void usbhost_mkdevname(FAR struct usbhost_state_s *priv, char *devname); - -/* Worker thread actions */ - -static void usbhost_destroy(FAR void *arg); - -/* Helpers for usbhost_connect() */ - -static inline int usbhost_cfgdesc(FAR struct usbhost_state_s *priv, - FAR const uint8_t *configdesc, int desclen, - uint8_t funcaddr); -static inline int usbhost_devinit(FAR struct usbhost_state_s *priv); - -/* (Little Endian) Data helpers */ - -static inline uint16_t usbhost_getle16(const uint8_t *val); -static inline void usbhost_putle16(uint8_t *dest, uint16_t val); -static inline uint32_t usbhost_getle32(const uint8_t *val); -static void usbhost_putle32(uint8_t *dest, uint32_t val); - -/* Transfer descriptor memory management */ - -static inline int usbhost_talloc(FAR struct usbhost_state_s *priv); -static inline int usbhost_tfree(FAR struct usbhost_state_s *priv); - -/* struct usbhost_registry_s methods */ - -static struct usbhost_class_s *usbhost_create(FAR struct usbhost_driver_s *drvr, - FAR const struct usbhost_id_s *id); - -/* struct usbhost_class_s methods */ - -static int usbhost_connect(FAR struct usbhost_class_s *class, - FAR const uint8_t *configdesc, int desclen, - uint8_t funcaddr); -static int usbhost_disconnected(FAR struct usbhost_class_s *class); - -/* Driver methods -- depend upon the type of NuttX driver interface exported */ - -#if defined(CONFIG_NET) && defined(CONFIG_NET_WLAN) - -/* Common TX logic */ - -static int wlan_transmit(FAR struct wlan_driver_s *wlan); -static int wlan_uiptxpoll(struct uip_driver_s *dev); - -/* Interrupt handling */ - -static void wlan_receive(FAR struct wlan_driver_s *wlan); -static void wlan_txdone(FAR struct wlan_driver_s *wlan); -static int wlan_interrupt(int irq, FAR void *context); - -/* Watchdog timer expirations */ - -static void wlan_polltimer(int argc, uint32_t arg, ...); -static void wlan_txtimeout(int argc, uint32_t arg, ...); - -/* NuttX callback functions */ - -static int wlan_ifup(struct uip_driver_s *dev); -static int wlan_ifdown(struct uip_driver_s *dev); -static int wlan_txavail(struct uip_driver_s *dev); -#ifdef CONFIG_NET_IGMP -static int wlan_addmac(struct uip_driver_s *dev, FAR const uint8_t *mac); -static int wlan_rmmac(struct uip_driver_s *dev, FAR const uint8_t *mac); -#endif - -/* Register and unregister network device */ - -static int wlan_initialize(int intf); -static int wlan_uninitialize(int intf); - -#endif /* CONFIG_NET && CONFIG_NET_WLAN */ - -/**************************************************************************** - * Private Data - ****************************************************************************/ - -/* This structure provides the registry entry ID informatino that will be - * used to associate the USB class driver to a connected USB device. - */ - -static const const struct usbhost_id_s g_id = -{ - USB_CLASS_VENDOR_SPEC, /* base */ - 0xff, /* subclass */ - 0xff, /* proto */ - CONFIG_USB_WLAN_VID, /* vid */ - CONFIG_USB_WLAN_PID /* pid */ -}; - -/* This is the USB host wireless LAN class's registry entry */ - -static struct usbhost_registry_s g_wlan = -{ - NULL, /* flink */ - usbhost_create, /* create */ - 1, /* nids */ - &g_id /* id[] */ -}; - -/* This is a bitmap that is used to allocate device names /dev/wlana-z. */ - -static uint32_t g_devinuse; - -#if defined(CONFIG_NET) && defined(CONFIG_NET_WLAN) - -static struct wlan_driver_s g_wlan1[CONFIG_WLAN_NINTERFACES]; - -#endif /* CONFIG_NET && CONFIG_NET_WLAN */ - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: usbhost_takesem - * - * Description: - * This is just a wrapper to handle the annoying behavior of semaphore - * waits that return due to the receipt of a signal. - * - ****************************************************************************/ - -static void usbhost_takesem(sem_t *sem) -{ - /* Take the semaphore (perhaps waiting) */ - - while (sem_wait(sem) != 0) - { - /* The only case that an error should occr here is if the wait was - * awakened by a signal. - */ - - ASSERT(errno == EINTR); - } -} - -/**************************************************************************** - * Name: usbhost_allocclass - * - * Description: - * This is really part of the logic that implements the create() method - * of struct usbhost_registry_s. This function allocates memory for one - * new class instance. - * - * Input Parameters: - * None - * - * Returned Values: - * On success, this function will return a non-NULL instance of struct - * usbhost_class_s. NULL is returned on failure; this function will - * will fail only if there are insufficient resources to create another - * USB host class instance. - * - ****************************************************************************/ - -static inline FAR struct usbhost_state_s *usbhost_allocclass(void) -{ - FAR struct usbhost_state_s *priv; - - DEBUGASSERT(!up_interrupt_context()); - priv = (FAR struct usbhost_state_s *)malloc(sizeof(struct usbhost_state_s)); - uvdbg("Allocated: %p\n", priv);; - return priv; -} - -/**************************************************************************** - * Name: usbhost_freeclass - * - * Description: - * Free a class instance previously allocated by usbhost_allocclass(). - * - * Input Parameters: - * class - A reference to the class instance to be freed. - * - * Returned Values: - * None - * - ****************************************************************************/ - -static inline void usbhost_freeclass(FAR struct usbhost_state_s *class) -{ - DEBUGASSERT(class != NULL); - - /* Free the class instance (calling sched_free() in case we are executing - * from an interrupt handler. - */ - - uvdbg("Freeing: %p\n", class);; - free(class); -} - -/**************************************************************************** - * Name: Device name management - * - * Description: - * Some tiny functions to coordinate management of device names. - * - ****************************************************************************/ - -static int usbhost_allocdevno(FAR struct usbhost_state_s *priv) -{ - irqstate_t flags; - int devno; - - flags = irqsave(); - for (devno = 0; devno < 26; devno++) - { - uint32_t bitno = 1 << devno; - if ((g_devinuse & bitno) == 0) - { - g_devinuse |= bitno; - priv->devchar = 'a' + devno; - irqrestore(flags); - return OK; - } - } - - irqrestore(flags); - return -EMFILE; -} - -static void usbhost_freedevno(FAR struct usbhost_state_s *priv) -{ - int devno = 'a' - priv->devchar; - - if (devno >= 0 && devno < 26) - { - irqstate_t flags = irqsave(); - g_devinuse &= ~(1 << devno); - irqrestore(flags); - } -} - -static inline void usbhost_mkdevname(FAR struct usbhost_state_s *priv, char *devname) -{ - (void)snprintf(devname, DEV_NAMELEN, DEV_FORMAT, priv->devchar); -} - -/**************************************************************************** - * Name: usbhost_destroy - * - * Description: - * The USB device has been disconnected and the refernce count on the USB - * host class instance has gone to 1.. Time to destroy the USB host class - * instance. - * - * Input Parameters: - * arg - A reference to the class instance to be destroyed. - * - * Returned Values: - * None - * - ****************************************************************************/ - -static void usbhost_destroy(FAR void *arg) -{ - FAR struct usbhost_state_s *priv = (FAR struct usbhost_state_s *)arg; - - DEBUGASSERT(priv != NULL); - uvdbg("crefs: %d\n", priv->crefs); - - /* Unregister the driver */ - - /* Release the device name used by this connection */ - - usbhost_freedevno(priv); - - /* Free the endpoints */ - - /* Free any transfer buffers */ - - /* Destroy the semaphores */ - - /* Disconnect the USB host device */ - - DRVR_DISCONNECT(priv->drvr); - - /* And free the class instance. Hmmm.. this may execute on the worker - * thread and the work structure is part of what is getting freed. That - * should be okay because once the work contained is removed from the - * queue, it should not longer be accessed by the worker thread. - */ - - usbhost_freeclass(priv); -} - -/**************************************************************************** - * Name: usbhost_cfgdesc - * - * Description: - * This function implements the connect() method of struct - * usbhost_class_s. This method is a callback into the class - * implementation. It is used to provide the device's configuration - * descriptor to the class so that the class may initialize properly - * - * Input Parameters: - * priv - The USB host class instance. - * configdesc - A pointer to a uint8_t buffer container the configuration descripor. - * desclen - The length in bytes of the configuration descriptor. - * funcaddr - The USB address of the function containing the endpoint that EP0 - * controls - * - * Returned Values: - * On success, zero (OK) is returned. On a failure, a negated errno value is - * returned indicating the nature of the failure - * - * Assumptions: - * This function will *not* be called from an interrupt handler. - * - ****************************************************************************/ - -static inline int usbhost_cfgdesc(FAR struct usbhost_state_s *priv, - FAR const uint8_t *configdesc, int desclen, - uint8_t funcaddr) -{ - FAR struct usb_cfgdesc_s *cfgdesc; - FAR struct usb_desc_s *desc; - FAR struct usbhost_epdesc_s bindesc; - FAR struct usbhost_epdesc_s boutdesc; - int remaining; - uint8_t found = 0; - int ret; - - DEBUGASSERT(priv != NULL && - configdesc != NULL && - desclen >= sizeof(struct usb_cfgdesc_s)); - - /* Verify that we were passed a configuration descriptor */ - - cfgdesc = (FAR struct usb_cfgdesc_s *)configdesc; - if (cfgdesc->type != USB_DESC_TYPE_CONFIG) - { - return -EINVAL; - } - - /* Get the total length of the configuration descriptor (little endian). - * It might be a good check to get the number of interfaces here too. - */ - - remaining = (int)usbhost_getle16(cfgdesc->totallen); - - /* Skip to the next entry descriptor */ - - configdesc += cfgdesc->len; - remaining -= cfgdesc->len; - - /* Loop where there are more dscriptors to examine */ - - while (remaining >= sizeof(struct usb_desc_s)) - { - /* What is the next descriptor? */ - - desc = (FAR struct usb_desc_s *)configdesc; - switch (desc->type) - { - /* Interface descriptor. We really should get the number of endpoints - * from this descriptor too. - */ - - case USB_DESC_TYPE_INTERFACE: - { - FAR struct usb_ifdesc_s *ifdesc = (FAR struct usb_ifdesc_s *)configdesc; - - uvdbg("Interface descriptor\n"); - DEBUGASSERT(remaining >= USB_SIZEOF_IFDESC); - - /* Save the interface number and mark ONLY the interface found */ - - priv->ifno = ifdesc->ifno; - found = USBHOST_IFFOUND; - } - break; - - /* Endpoint descriptor. Here, we expect two bulk endpoints, an IN - * and an OUT. - */ - - case USB_DESC_TYPE_ENDPOINT: - { - FAR struct usb_epdesc_s *epdesc = (FAR struct usb_epdesc_s *)configdesc; - - uvdbg("Endpoint descriptor\n"); - DEBUGASSERT(remaining >= USB_SIZEOF_EPDESC); - - /* Check for a bulk endpoint. */ - - if ((epdesc->attr & USB_EP_ATTR_XFERTYPE_MASK) == USB_EP_ATTR_XFER_BULK) - { - /* Yes.. it is a bulk endpoint. IN or OUT? */ - - if (USB_ISEPOUT(epdesc->addr)) - { - /* It is an OUT bulk endpoint. There should be only one - * bulk OUT endpoint. - */ - - if ((found & USBHOST_BOUTFOUND) != 0) - { - /* Oops.. more than one endpoint. We don't know - * what to do with this. - */ - - return -EINVAL; - } - found |= USBHOST_BOUTFOUND; - - /* Save the bulk OUT endpoint information */ - - boutdesc.addr = epdesc->addr & USB_EP_ADDR_NUMBER_MASK; - boutdesc.in = false; - boutdesc.funcaddr = funcaddr; - boutdesc.xfrtype = USB_EP_ATTR_XFER_BULK; - boutdesc.interval = epdesc->interval; - boutdesc.mxpacketsize = usbhost_getle16(epdesc->mxpacketsize); - uvdbg("Bulk OUT EP addr:%d mxpacketsize:%d\n", - boutdesc.addr, boutdesc.mxpacketsize); - } - else - { - /* It is an IN bulk endpoint. There should be only one - * bulk IN endpoint. - */ - - if ((found & USBHOST_BINFOUND) != 0) - { - /* Oops.. more than one endpoint. We don't know - * what to do with this. - */ - - return -EINVAL; - } - found |= USBHOST_BINFOUND; - - /* Save the bulk IN endpoint information */ - - bindesc.addr = epdesc->addr & USB_EP_ADDR_NUMBER_MASK; - bindesc.in = 1; - bindesc.funcaddr = funcaddr; - bindesc.xfrtype = USB_EP_ATTR_XFER_BULK; - bindesc.interval = epdesc->interval; - bindesc.mxpacketsize = usbhost_getle16(epdesc->mxpacketsize); - uvdbg("Bulk IN EP addr:%d mxpacketsize:%d\n", - bindesc.addr, bindesc.mxpacketsize); - } - } - } - break; - - /* Other descriptors are just ignored for now */ - - default: - break; - } - - /* If we found everything we need with this interface, then break out - * of the loop early. - */ - - if (found == USBHOST_ALLFOUND) - { - break; - } - - /* Increment the address of the next descriptor */ - - configdesc += desc->len; - remaining -= desc->len; - } - - /* Sanity checking... did we find all of things that we need? */ - - if (found != USBHOST_ALLFOUND) - { - ulldbg("ERROR: Found IF:%s BIN:%s BOUT:%s\n", - (found & USBHOST_IFFOUND) != 0 ? "YES" : "NO", - (found & USBHOST_BINFOUND) != 0 ? "YES" : "NO", - (found & USBHOST_BOUTFOUND) != 0 ? "YES" : "NO"); - return -EINVAL; - } - - /* We are good... Allocate the endpoints */ - - ret = DRVR_EPALLOC(priv->drvr, &boutdesc, &priv->epout); - if (ret != OK) - { - udbg("ERROR: Failed to allocate Bulk OUT endpoint\n"); - return ret; - } - - ret = DRVR_EPALLOC(priv->drvr, &bindesc, &priv->epin); - if (ret != OK) - { - udbg("ERROR: Failed to allocate Bulk IN endpoint\n"); - (void)DRVR_EPFREE(priv->drvr, priv->epout); - return ret; - } - - ullvdbg("Endpoints allocated\n"); - return OK; -} - -/**************************************************************************** - * Name: usbhost_devinit - * - * Description: - * The USB device has been successfully connected. This completes the - * initialization operations. It is first called after the - * configuration descriptor has been received. - * - * This function is called from the connect() method. This function always - * executes on the thread of the caller of connect(). - * - * Input Parameters: - * priv - A reference to the class instance. - * - * Returned Values: - * None - * - ****************************************************************************/ - -static inline int usbhost_devinit(FAR struct usbhost_state_s *priv) -{ - int ret = OK; - - /* Set aside a transfer buffer for exclusive use by the class driver */ - - /* Increment the reference count. This will prevent usbhost_destroy() from - * being called asynchronously if the device is removed. - */ - - priv->crefs++; - DEBUGASSERT(priv->crefs == 2); - - /* Configure the device */ - - /* Register the driver */ - - if (ret == OK) - { - char devname[DEV_NAMELEN]; - - uvdbg("Register block driver\n"); - usbhost_mkdevname(priv, devname); - ret = wlan_initialize(0); - // ret = register_blockdriver(devname, &g_bops, 0, priv); - } - - /* Check if we successfully initialized. We now have to be concerned - * about asynchronous modification of crefs because the block - * driver has been registered. - */ - - if (ret == OK) - { - usbhost_takesem(&priv->exclsem); - DEBUGASSERT(priv->crefs >= 2); - - /* Handle a corner case where (1) open() has been called so the - * reference count is > 2, but the device has been disconnected. - * In this case, the class instance needs to persist until close() - * is called. - */ - - if (priv->crefs <= 2 && priv->disconnected) - { - /* We don't have to give the semaphore because it will be - * destroyed when usb_destroy is called. - */ - - ret = -ENODEV; - } - else - { - /* Ready for normal operation as a block device driver */ - - uvdbg("Successfully initialized\n"); - priv->crefs--; - usbhost_givesem(&priv->exclsem); - } - } - - /* Disconnect on any errors detected during volume initialization */ - - if (ret != OK) - { - udbg("ERROR! Aborting: %d\n", ret); - usbhost_destroy(priv); - } - - return ret; -} - -/**************************************************************************** - * Name: usbhost_getle16 - * - * Description: - * Get a (possibly unaligned) 16-bit little endian value. - * - * Input Parameters: - * val - A pointer to the first byte of the little endian value. - * - * Returned Values: - * A uint16_t representing the whole 16-bit integer value - * - ****************************************************************************/ - -static inline uint16_t usbhost_getle16(const uint8_t *val) -{ - return (uint16_t)val[1] << 8 | (uint16_t)val[0]; -} - -/**************************************************************************** - * Name: usbhost_putle16 - * - * Description: - * Put a (possibly unaligned) 16-bit little endian value. - * - * Input Parameters: - * dest - A pointer to the first byte to save the little endian value. - * val - The 16-bit value to be saved. - * - * Returned Values: - * None - * - ****************************************************************************/ - -static void usbhost_putle16(uint8_t *dest, uint16_t val) -{ - dest[0] = val & 0xff; /* Little endian means LS byte first in byte stream */ - dest[1] = val >> 8; -} - -/**************************************************************************** - * Name: usbhost_getle32 - * - * Description: - * Get a (possibly unaligned) 32-bit little endian value. - * - * Input Parameters: - * dest - A pointer to the first byte to save the big endian value. - * val - The 32-bit value to be saved. - * - * Returned Values: - * None - * - ****************************************************************************/ - -static inline uint32_t usbhost_getle32(const uint8_t *val) -{ - /* Little endian means LS halfword first in byte stream */ - - return (uint32_t)usbhost_getle16(&val[2]) << 16 | (uint32_t)usbhost_getle16(val); -} - -/**************************************************************************** - * Name: usbhost_putle32 - * - * Description: - * Put a (possibly unaligned) 32-bit little endian value. - * - * Input Parameters: - * dest - A pointer to the first byte to save the little endian value. - * val - The 32-bit value to be saved. - * - * Returned Values: - * None - * - ****************************************************************************/ - -static void usbhost_putle32(uint8_t *dest, uint32_t val) -{ - /* Little endian means LS halfword first in byte stream */ - - usbhost_putle16(dest, (uint16_t)(val & 0xffff)); - usbhost_putle16(dest+2, (uint16_t)(val >> 16)); -} - -/**************************************************************************** - * Name: usbhost_talloc - * - * Description: - * Allocate transfer buffer memory. - * - * Input Parameters: - * priv - A reference to the class instance. - * - * Returned Values: - * On sucess, zero (OK) is returned. On failure, an negated errno value - * is returned to indicate the nature of the failure. - * - ****************************************************************************/ - -static inline int usbhost_talloc(FAR struct usbhost_state_s *priv) -{ - DEBUGASSERT(priv && priv->tbuffer == NULL); - return DRVR_ALLOC(priv->drvr, &priv->tbuffer, &priv->tbuflen); -} - -/**************************************************************************** - * Name: usbhost_tfree - * - * Description: - * Free transfer buffer memory. - * - * Input Parameters: - * priv - A reference to the class instance. - * - * Returned Values: - * On sucess, zero (OK) is returned. On failure, an negated errno value - * is returned to indicate the nature of the failure. - * - ****************************************************************************/ - -static inline int usbhost_tfree(FAR struct usbhost_state_s *priv) -{ - int result = OK; - DEBUGASSERT(priv); - - if (priv->tbuffer) - { - DEBUGASSERT(priv->drvr); - result = DRVR_FREE(priv->drvr, priv->tbuffer); - priv->tbuffer = NULL; - priv->tbuflen = 0; - } - return result; -} - -/**************************************************************************** - * struct usbhost_registry_s methods - ****************************************************************************/ - -/**************************************************************************** - * Name: usbhost_create - * - * Description: - * This function implements the create() method of struct usbhost_registry_s. - * The create() method is a callback into the class implementation. It is - * used to (1) create a new instance of the USB host class state and to (2) - * bind a USB host driver "session" to the class instance. Use of this - * create() method will support environments where there may be multiple - * USB ports and multiple USB devices simultaneously connected. - * - * Input Parameters: - * drvr - An instance of struct usbhost_driver_s that the class - * implementation will "bind" to its state structure and will - * subsequently use to communicate with the USB host driver. - * id - In the case where the device supports multiple base classes, - * subclasses, or protocols, this specifies which to configure for. - * - * Returned Values: - * On success, this function will return a non-NULL instance of struct - * usbhost_class_s that can be used by the USB host driver to communicate - * with the USB host class. NULL is returned on failure; this function - * will fail only if the drvr input parameter is NULL or if there are - * insufficient resources to create another USB host class instance. - * - ****************************************************************************/ - -static FAR struct usbhost_class_s *usbhost_create(FAR struct usbhost_driver_s *drvr, - FAR const struct usbhost_id_s *id) -{ - FAR struct usbhost_state_s *priv; - - /* Allocate a USB host class instance */ - - priv = usbhost_allocclass(); - if (priv) - { - /* Initialize the allocated storage class instance */ - - memset(priv, 0, sizeof(struct usbhost_state_s)); - - /* Assign a device number to this class instance */ - - if (usbhost_allocdevno(priv) == OK) - { - /* Initialize class method function pointers */ - - priv->class.connect = usbhost_connect; - priv->class.disconnected = usbhost_disconnected; - - /* The initial reference count is 1... One reference is held by the driver */ - - priv->crefs = 1; - - /* Initialize semphores (this works okay in the interrupt context) */ - - sem_init(&priv->exclsem, 0, 1); - - /* Bind the driver to the storage class instance */ - - priv->drvr = drvr; - - /* Return the instance of the USB class driver */ - - return &priv->class; - } - } - - /* An error occurred. Free the allocation and return NULL on all failures */ - - if (priv) - { - usbhost_freeclass(priv); - } - return NULL; -} - -/**************************************************************************** - * struct usbhost_class_s methods - ****************************************************************************/ -/**************************************************************************** - * Name: usbhost_connect - * - * Description: - * This function implements the connect() method of struct - * usbhost_class_s. This method is a callback into the class - * implementation. It is used to provide the device's configuration - * descriptor to the class so that the class may initialize properly - * - * Input Parameters: - * class - The USB host class entry previously obtained from a call to create(). - * configdesc - A pointer to a uint8_t buffer container the configuration descripor. - * desclen - The length in bytes of the configuration descriptor. - * funcaddr - The USB address of the function containing the endpoint that EP0 - * controls - * - * Returned Values: - * On success, zero (OK) is returned. On a failure, a negated errno value is - * returned indicating the nature of the failure - * - * Assumptions: - * - This function will *not* be called from an interrupt handler. - * - If this function returns an error, the USB host controller driver - * must call to DISCONNECTED method to recover from the error - * - ****************************************************************************/ - -static int usbhost_connect(FAR struct usbhost_class_s *class, - FAR const uint8_t *configdesc, int desclen, - uint8_t funcaddr) -{ - FAR struct usbhost_state_s *priv = (FAR struct usbhost_state_s *)class; - int ret; - - DEBUGASSERT(priv != NULL && - configdesc != NULL && - desclen >= sizeof(struct usb_cfgdesc_s)); - - /* Parse the configuration descriptor to get the endpoints */ - - ret = usbhost_cfgdesc(priv, configdesc, desclen, funcaddr); - if (ret != OK) - { - udbg("usbhost_cfgdesc() failed: %d\n", ret); - } - else - { - /* Now configure the device and register the NuttX driver */ - - ret = usbhost_devinit(priv); - if (ret != OK) - { - udbg("usbhost_devinit() failed: %d\n", ret); - } - } - - return ret; -} - -/**************************************************************************** - * Name: usbhost_disconnected - * - * Description: - * This function implements the disconnected() method of struct - * usbhost_class_s. This method is a callback into the class - * implementation. It is used to inform the class that the USB device has - * been disconnected. - * - * Input Parameters: - * class - The USB host class entry previously obtained from a call to - * create(). - * - * Returned Values: - * On success, zero (OK) is returned. On a failure, a negated errno value - * is returned indicating the nature of the failure - * - * Assumptions: - * This function may be called from an interrupt handler. - * - ****************************************************************************/ - -static int usbhost_disconnected(struct usbhost_class_s *class) -{ - FAR struct usbhost_state_s *priv = (FAR struct usbhost_state_s *)class; - irqstate_t flags; - - DEBUGASSERT(priv != NULL); - - /* Set an indication to any users of the device that the device is no - * longer available. - */ - - flags = irqsave(); - priv->disconnected = true; - - /* Now check the number of references on the class instance. If it is one, - * then we can free the class instance now. Otherwise, we will have to - * wait until the holders of the references free them by closing the - * block driver. - */ - - ullvdbg("crefs: %d\n", priv->crefs); - if (priv->crefs == 1) - { - /* Destroy the class instance. If we are executing from an interrupt - * handler, then defer the destruction to the worker thread. - * Otherwise, destroy the instance now. - */ - - if (up_interrupt_context()) - { - /* Destroy the instance on the worker thread. */ - - uvdbg("Queuing destruction: worker %p->%p\n", priv->work.worker, usbhost_destroy); - DEBUGASSERT(priv->work.worker == NULL); - (void)work_queue(&priv->work, usbhost_destroy, priv, 0); - } - else - { - /* Do the work now */ - - usbhost_destroy(priv); - } - } - - /* Unregister WLAN network interface */ - - wlan_uninitialize(0); - - irqrestore(flags); - return OK; -} - -#if defined(CONFIG_NET) && defined(CONFIG_NET_WLAN) - -/**************************************************************************** - * Function: wlan_transmit - * - * Description: - * Start hardware transmission. Called either from the txdone interrupt - * handling or from watchdog based polling. - * - * Parameters: - * wlan - Reference to the driver state structure - * - * Returned Value: - * OK on success; a negated errno on failure - * - * Assumptions: - * May or may not be called from an interrupt handler. In either case, - * global interrupts are disabled, either explicitly or indirectly through - * interrupt handling logic. - * - ****************************************************************************/ - -static int wlan_transmit(FAR struct wlan_driver_s *wlan) -{ - /* Verify that the hardware is ready to send another packet. If we get - * here, then we are committed to sending a packet; Higher level logic - * must have assured that there is not transmission in progress. - */ - - /* Increment statistics */ - - /* Send the packet: address=wlan->wl_dev.d_buf, length=wlan->wl_dev.d_len */ - - /* Enable Tx interrupts */ - - /* Setup the TX timeout watchdog (perhaps restarting the timer) */ - - (void)wd_start(wlan->wl_txtimeout, WLAN_TXTIMEOUT, wlan_txtimeout, 1, (uint32_t)wlan); - return OK; -} - -/**************************************************************************** - * Function: wlan_uiptxpoll - * - * Description: - * The transmitter is available, check if uIP has any outgoing packets ready - * to send. This is a callback from uip_poll(). uip_poll() may be called: - * - * 1. When the preceding TX packet send is complete, - * 2. When the preceding TX packet send timesout and the interface is reset - * 3. During normal TX polling - * - * Parameters: - * dev - Reference to the NuttX driver state structure - * - * Returned Value: - * OK on success; a negated errno on failure - * - * Assumptions: - * May or may not be called from an interrupt handler. In either case, - * global interrupts are disabled, either explicitly or indirectly through - * interrupt handling logic. - * - ****************************************************************************/ - -static int wlan_uiptxpoll(struct uip_driver_s *dev) -{ - FAR struct wlan_driver_s *wlan = (FAR struct wlan_driver_s *)dev->d_private; - - /* If the polling resulted in data that should be sent out on the network, - * the field d_len is set to a value > 0. - */ - - if (wlan->wl_dev.d_len > 0) - { - uip_arp_out(&wlan->wl_dev); - wlan_transmit(wlan); - - /* Check if there is room in the device to hold another packet. If not, - * return a non-zero value to terminate the poll. - */ - } - - /* If zero is returned, the polling will continue until all connections have - * been examined. - */ - - return 0; -} - -/**************************************************************************** - * Function: wlan_receive - * - * Description: - * An interrupt was received indicating the availability of a new RX packet - * - * Parameters: - * wlan - Reference to the driver state structure - * - * Returned Value: - * None - * - * Assumptions: - * Global interrupts are disabled by interrupt handling logic. - * - ****************************************************************************/ - -static void wlan_receive(FAR struct wlan_driver_s *wlan) -{ - do - { - /* Check for errors and update statistics */ - - /* Check if the packet is a valid size for the uIP buffer configuration */ - - /* Copy the data data from the hardware to wlan->wl_dev.d_buf. Set - * amount of data in wlan->wl_dev.d_len - */ - - /* We only accept IP packets of the configured type and ARP packets */ - -#ifdef CONFIG_NET_IPv6 - if (BUF->type == HTONS(UIP_ETHTYPE_IP6)) -#else - if (BUF->type == HTONS(UIP_ETHTYPE_IP)) -#endif - { - uip_arp_ipin(&wlan->wl_dev); - uip_input(&wlan->wl_dev); - - /* If the above function invocation resulted in data that should be - * sent out on the network, the field d_len will set to a value > 0. - */ - - if (wlan->wl_dev.d_len > 0) - { - uip_arp_out(&wlan->wl_dev); - wlan_transmit(wlan); - } - } - else if (BUF->type == htons(UIP_ETHTYPE_ARP)) - { - uip_arp_arpin(&wlan->wl_dev); - - /* If the above function invocation resulted in data that should be - * sent out on the network, the field d_len will set to a value > 0. - */ - - if (wlan->wl_dev.d_len > 0) - { - wlan_transmit(wlan); - } - } - } - while (0); /* While there are more packets to be processed */ -} - -/**************************************************************************** - * Function: wlan_txdone - * - * Description: - * An interrupt was received indicating that the last TX packet(s) is done - * - * Parameters: - * wlan - Reference to the driver state structure - * - * Returned Value: - * None - * - * Assumptions: - * Global interrupts are disabled by the watchdog logic. - * - ****************************************************************************/ - -static void wlan_txdone(FAR struct wlan_driver_s *wlan) -{ - /* Check for errors and update statistics */ - - /* If no further xmits are pending, then cancel the TX timeout and - * disable further Tx interrupts. - */ - - wd_cancel(wlan->wl_txtimeout); - - /* Then poll uIP for new XMIT data */ - - (void)uip_poll(&wlan->wl_dev, wlan_uiptxpoll); -} - -/**************************************************************************** - * Function: wlan_interrupt - * - * Description: - * Hardware interrupt handler - * - * Parameters: - * irq - Number of the IRQ that generated the interrupt - * context - Interrupt register state save info (architecture-specific) - * - * Returned Value: - * OK on success - * - * Assumptions: - * - ****************************************************************************/ - -static int wlan_interrupt(int irq, FAR void *context) -{ - register FAR struct wlan_driver_s *wlan = &g_wlan1[0]; - - /* Get and clear interrupt status bits */ - - /* Handle interrupts according to status bit settings */ - - /* Check if we received an incoming packet, if so, call wlan_receive() */ - - wlan_receive(wlan); - - /* Check is a packet transmission just completed. If so, call wlan_txdone. - * This may disable further Tx interrupts if there are no pending - * tansmissions. - */ - - wlan_txdone(wlan); - - return OK; -} - -/**************************************************************************** - * Function: wlan_txtimeout - * - * Description: - * Our TX watchdog timed out. Called from the timer interrupt handler. - * The last TX never completed. Reset the hardware and start again. - * - * Parameters: - * argc - The number of available arguments - * arg - The first argument - * - * Returned Value: - * None - * - * Assumptions: - * Global interrupts are disabled by the watchdog logic. - * - ****************************************************************************/ - -static void wlan_txtimeout(int argc, uint32_t arg, ...) -{ - FAR struct wlan_driver_s *wlan = (FAR struct wlan_driver_s *)arg; - - /* Increment statistics and dump debug info */ - - /* Then reset the hardware */ - - /* Then poll uIP for new XMIT data */ - - (void)uip_poll(&wlan->wl_dev, wlan_uiptxpoll); -} - -/**************************************************************************** - * Function: wlan_polltimer - * - * Description: - * Periodic timer handler. Called from the timer interrupt handler. - * - * Parameters: - * argc - The number of available arguments - * arg - The first argument - * - * Returned Value: - * None - * - * Assumptions: - * Global interrupts are disabled by the watchdog logic. - * - ****************************************************************************/ - -static void wlan_polltimer(int argc, uint32_t arg, ...) -{ - FAR struct wlan_driver_s *wlan = (FAR struct wlan_driver_s *)arg; - - /* Check if there is room in the send another TX packet. We cannot perform - * the TX poll if he are unable to accept another packet for transmission. - */ - - /* If so, update TCP timing states and poll uIP for new XMIT data. Hmmm.. - * might be bug here. Does this mean if there is a transmit in progress, - * we will missing TCP time state updates? - */ - - (void)uip_timer(&wlan->wl_dev, wlan_uiptxpoll, WLAN_POLLHSEC); - - /* Setup the watchdog poll timer again */ - - (void)wd_start(wlan->wl_txpoll, WLAN_WDDELAY, wlan_polltimer, 1, arg); -} - -/**************************************************************************** - * Function: wlan_ifup - * - * Description: - * NuttX Callback: Bring up the WLAN interface when an IP address is - * provided - * - * Parameters: - * dev - Reference to the NuttX driver state structure - * - * Returned Value: - * None - * - * Assumptions: - * - ****************************************************************************/ - -static int wlan_ifup(struct uip_driver_s *dev) -{ - FAR struct wlan_driver_s *wlan = (FAR struct wlan_driver_s *)dev->d_private; - - ndbg("Bringing up: %d.%d.%d.%d\n", - dev->d_ipaddr & 0xff, (dev->d_ipaddr >> 8) & 0xff, - (dev->d_ipaddr >> 16) & 0xff, dev->d_ipaddr >> 24 ); - - /* Initialize PHYs, the WLAN interface, and setup up WLAN interrupts */ - - /* Set and activate a timer process */ - - (void)wd_start(wlan->wl_txpoll, WLAN_WDDELAY, wlan_polltimer, 1, (uint32_t)wlan); - - /* Enable the WLAN interrupt */ - - wlan->wl_bifup = true; - up_enable_irq(CONFIG_WLAN_IRQ); - return OK; -} - -/**************************************************************************** - * Function: wlan_ifdown - * - * Description: - * NuttX Callback: Stop the interface. - * - * Parameters: - * dev - Reference to the NuttX driver state structure - * - * Returned Value: - * None - * - * Assumptions: - * - ****************************************************************************/ - -static int wlan_ifdown(struct uip_driver_s *dev) -{ - FAR struct wlan_driver_s *wlan = (FAR struct wlan_driver_s *)dev->d_private; - irqstate_t flags; - - /* Disable the WLAN interrupt */ - - flags = irqsave(); - up_disable_irq(CONFIG_WLAN_IRQ); - - /* Cancel the TX poll timer and TX timeout timers */ - - wd_cancel(wlan->wl_txpoll); - wd_cancel(wlan->wl_txtimeout); - - /* Put the the EMAC is its reset, non-operational state. This should be - * a known configuration that will guarantee the wlan_ifup() always - * successfully brings the interface back up. - */ - - /* Mark the device "down" */ - - wlan->wl_bifup = false; - irqrestore(flags); - return OK; -} - -/**************************************************************************** - * Function: wlan_txavail - * - * Description: - * Driver callback invoked when new TX data is available. This is a - * stimulus perform an out-of-cycle poll and, thereby, reduce the TX - * latency. - * - * Parameters: - * dev - Reference to the NuttX driver state structure - * - * Returned Value: - * None - * - * Assumptions: - * Called in normal user mode - * - ****************************************************************************/ - -static int wlan_txavail(struct uip_driver_s *dev) -{ - FAR struct wlan_driver_s *wlan = (FAR struct wlan_driver_s *)dev->d_private; - irqstate_t flags; - - /* Disable interrupts because this function may be called from interrupt - * level processing. - */ - - flags = irqsave(); - - /* Ignore the notification if the interface is not yet up */ - - if (wlan->wl_bifup) - { - /* Check if there is room in the hardware to hold another outgoing packet. */ - - /* If so, then poll uIP for new XMIT data */ - - (void)uip_poll(&wlan->wl_dev, wlan_uiptxpoll); - } - - irqrestore(flags); - return OK; -} - -/**************************************************************************** - * Function: wlan_addmac - * - * Description: - * NuttX Callback: Add the specified MAC address to the hardware multicast - * address filtering - * - * Parameters: - * dev - Reference to the NuttX driver state structure - * mac - The MAC address to be added - * - * Returned Value: - * None - * - * Assumptions: - * - ****************************************************************************/ - -#ifdef CONFIG_NET_IGMP -static int wlan_addmac(struct uip_driver_s *dev, FAR const uint8_t *mac) -{ - FAR struct wlan_driver_s *wlan = (FAR struct wlan_driver_s *)dev->d_private; - - /* Add the MAC address to the hardware multicast routing table */ - - return OK; -} -#endif - -/**************************************************************************** - * Function: wlan_rmmac - * - * Description: - * NuttX Callback: Remove the specified MAC address from the hardware multicast - * address filtering - * - * Parameters: - * dev - Reference to the NuttX driver state structure - * mac - The MAC address to be removed - * - * Returned Value: - * None - * - * Assumptions: - * - ****************************************************************************/ - -#ifdef CONFIG_NET_IGMP -static int wlan_rmmac(struct uip_driver_s *dev, FAR const uint8_t *mac) -{ - FAR struct wlan_driver_s *wlan = (FAR struct wlan_driver_s *)dev->d_private; - - /* Add the MAC address to the hardware multicast routing table */ - - return OK; -} -#endif - -/**************************************************************************** - * Function: wlan_initialize - * - * Description: - * Initialize the WLAN controller and driver - * - * Parameters: - * intf - In the case where there are multiple EMACs, this value - * identifies which EMAC is to be initialized. - * - * Returned Value: - * OK on success; Negated errno on failure. - * - * Assumptions: - * - ****************************************************************************/ - -static int wlan_initialize(int intf) -{ - struct wlan_driver_s *priv; - - /* Get the interface structure associated with this interface number. */ - - DEBUGASSERT(intf < CONFIG_WLAN_NINTERFACES); - priv = &g_wlan1[intf]; - - /* Check if a WLAN chip is recognized at its I/O base */ - - /* Attach the IRQ to the driver */ - -#if 0 /* @TODO resolve this */ - if (irq_attach(CONFIG_WLAN_IRQ, wlan_interrupt)) - { - /* We could not attach the ISR to the the interrupt */ - - return -EAGAIN; - } -#endif - - /* Initialize the driver structure */ - - memset(priv, 0, sizeof(struct wlan_driver_s)); - priv->wl_dev.d_ifup = wlan_ifup; /* I/F down callback */ - priv->wl_dev.d_ifdown = wlan_ifdown; /* I/F up (new IP address) callback */ - priv->wl_dev.d_txavail = wlan_txavail; /* New TX data callback */ -#ifdef CONFIG_NET_IGMP - priv->wl_dev.d_addmac = wlan_addmac; /* Add multicast MAC address */ - priv->wl_dev.d_rmmac = wlan_rmmac; /* Remove multicast MAC address */ -#endif - priv->wl_dev.d_private = (void*)g_wlan1; /* Used to recover private state from dev */ - - /* Create a watchdog for timing polling for and timing of transmisstions */ - - priv->wl_txpoll = wd_create(); /* Create periodic poll timer */ - priv->wl_txtimeout = wd_create(); /* Create TX timeout timer */ - - /* Put the interface in the down state. This usually amounts to resetting - * the device and/or calling wlan_ifdown(). - */ - - /* Read the MAC address from the hardware into priv->wl_dev.d_mac.ether_addr_octet */ - - /* Register the device with the OS so that socket IOCTLs can be performed */ - - (void)netdev_register(&priv->wl_dev); - return OK; -} - -/**************************************************************************** - * Function: wlan_initialize - * - * Description: - * Initialize the WLAN controller and driver - * - * Parameters: - * intf - In the case where there are multiple EMACs, this value - * identifies which EMAC is to be initialized. - * - * Returned Value: - * OK on success; Negated errno on failure. - * - * Assumptions: - * - ****************************************************************************/ - -static int wlan_uninitialize(int intf) -{ - struct wlan_driver_s *priv; - - /* Get the interface structure associated with this interface number. */ - - DEBUGASSERT(intf < CONFIG_WLAN_NINTERFACES); - priv = &g_wlan1[intf]; - - /* Check if a WLAN chip is recognized at its I/O base */ - - /* Detach the IRQ from the driver */ - -// irq_detach(CONFIG_WLAN_IRQ); /* @TODO enable this code */ - - /* Unregister the device */ - -// (void)netdev_unregister(&priv->wl_dev); /* @TODO implement this */ - - /* Uninitialize the driver structure */ - - memset(priv, 0, sizeof(struct wlan_driver_s)); - - return OK; -} - -#endif /* CONFIG_NET && CONFIG_NET_WLAN */ - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: usbhost_wlaninit - * - * Description: - * Initialize the USB class driver. This function should be called - * be platform-specific code in order to initialize and register support - * for the USB host class device. - * - * Input Parameters: - * None - * - * Returned Values: - * On success this function will return zero (OK); A negated errno value - * will be returned on failure. - * - ****************************************************************************/ - -int usbhost_wlaninit(void) -{ - /* Perform any one-time initialization of the class implementation */ - - /* Advertise our availability to support (certain) devices */ - - return usbhost_registerclass(&g_wlan); -} - |