diff options
Diffstat (limited to 'drivers/usb/atm/ueagle-atm.c')
| -rw-r--r-- | drivers/usb/atm/ueagle-atm.c | 1813 |
1 files changed, 1813 insertions, 0 deletions
diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c new file mode 100644 index 000000000000..3e2475c666ab --- /dev/null +++ b/drivers/usb/atm/ueagle-atm.c @@ -0,0 +1,1813 @@ +/*- + * Copyright (c) 2003, 2004 + * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved. + * + * Copyright (c) 2005 Matthieu Castet <castet.matthieu@free.fr> + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * 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 unmodified, 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. + * + * GPL license : + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * 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. + * + * + * HISTORY : some part of the code was base on ueagle 1.3 BSD driver, + * Damien Bergamini agree to put his code under a DUAL GPL/BSD license. + * + * The rest of the code was was rewritten from scratch. + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/crc32.h> +#include <linux/usb.h> +#include <linux/firmware.h> +#include <linux/ctype.h> +#include <linux/kthread.h> +#include <linux/version.h> +#include <asm/unaligned.h> + +#include "usbatm.h" + +#define EAGLEUSBVERSION "ueagle 1.1" + + +/* + * Debug macros + */ +#define uea_dbg(usb_dev, format, args...) \ + do { \ + if (debug >= 1) \ + dev_dbg(&(usb_dev)->dev, \ + "[ueagle-atm dbg] %s: " format, \ + __FUNCTION__, ##args); \ + } while (0) + +#define uea_vdbg(usb_dev, format, args...) \ + do { \ + if (debug >= 2) \ + dev_dbg(&(usb_dev)->dev, \ + "[ueagle-atm vdbg] " format, ##args); \ + } while (0) + +#define uea_enters(usb_dev) \ + uea_vdbg(usb_dev, "entering %s\n", __FUNCTION__) + +#define uea_leaves(usb_dev) \ + uea_vdbg(usb_dev, "leaving %s\n", __FUNCTION__) + +#define uea_err(usb_dev, format,args...) \ + dev_err(&(usb_dev)->dev ,"[UEAGLE-ATM] " format , ##args) + +#define uea_warn(usb_dev, format,args...) \ + dev_warn(&(usb_dev)->dev ,"[Ueagle-atm] " format, ##args) + +#define uea_info(usb_dev, format,args...) \ + dev_info(&(usb_dev)->dev ,"[ueagle-atm] " format, ##args) + +struct uea_cmvs { + u32 address; + u16 offset; + u32 data; +} __attribute__ ((packed)); + +struct uea_softc { + struct usb_device *usb_dev; + struct usbatm_data *usbatm; + + int modem_index; + unsigned int driver_info; + + int booting; + int reset; + + wait_queue_head_t sync_q; + + struct task_struct *kthread; + u32 data; + wait_queue_head_t cmv_ack_wait; + int cmv_ack; + + struct work_struct task; + u16 pageno; + u16 ovl; + + const struct firmware *dsp_firm; + struct urb *urb_int; + + u8 cmv_function; + u16 cmv_idx; + u32 cmv_address; + u16 cmv_offset; + + /* keep in sync with eaglectl */ + struct uea_stats { + struct { + u32 state; + u32 flags; + u32 mflags; + u32 vidcpe; + u32 vidco; + u32 dsrate; + u32 usrate; + u32 dsunc; + u32 usunc; + u32 dscorr; + u32 uscorr; + u32 txflow; + u32 rxflow; + u32 usattenuation; + u32 dsattenuation; + u32 dsmargin; + u32 usmargin; + u32 firmid; + } phy; + } stats; +}; + +/* + * Elsa IDs + */ +#define ELSA_VID 0x05CC +#define ELSA_PID_PSTFIRM 0x3350 +#define ELSA_PID_PREFIRM 0x3351 + +/* + * Sagem USB IDs + */ +#define EAGLE_VID 0x1110 +#define EAGLE_I_PID_PREFIRM 0x9010 /* Eagle I */ +#define EAGLE_I_PID_PSTFIRM 0x900F /* Eagle I */ + +#define EAGLE_IIC_PID_PREFIRM 0x9024 /* Eagle IIC */ +#define EAGLE_IIC_PID_PSTFIRM 0x9023 /* Eagle IIC */ + +#define EAGLE_II_PID_PREFIRM 0x9022 /* Eagle II */ +#define EAGLE_II_PID_PSTFIRM 0x9021 /* Eagle II */ + +/* + * Eagle III Pid + */ +#define EAGLE_III_PID_PREFIRM 0x9032 /* Eagle III */ +#define EAGLE_III_PID_PSTFIRM 0x9031 /* Eagle III */ + +/* + * USR USB IDs + */ +#define USR_VID 0x0BAF +#define MILLER_A_PID_PREFIRM 0x00F2 +#define MILLER_A_PID_PSTFIRM 0x00F1 +#define MILLER_B_PID_PREFIRM 0x00FA +#define MILLER_B_PID_PSTFIRM 0x00F9 +#define HEINEKEN_A_PID_PREFIRM 0x00F6 +#define HEINEKEN_A_PID_PSTFIRM 0x00F5 +#define HEINEKEN_B_PID_PREFIRM 0x00F8 +#define HEINEKEN_B_PID_PSTFIRM 0x00F7 + +#define PREFIRM 0 +#define PSTFIRM (1<<7) +enum { + ADI930 = 0, + EAGLE_I, + EAGLE_II, + EAGLE_III +}; + +/* macros for both struct usb_device_id and struct uea_softc */ +#define UEA_IS_PREFIRM(x) \ + (!((x)->driver_info & PSTFIRM)) +#define UEA_CHIP_VERSION(x) \ + ((x)->driver_info & 0xf) + +#define IS_ISDN(sc) \ + (le16_to_cpu(sc->usb_dev->descriptor.bcdDevice) & 0x80) + +#define INS_TO_USBDEV(ins) ins->usb_dev + +#define GET_STATUS(data) \ + ((data >> 8) & 0xf) +#define IS_OPERATIONAL(sc) \ + (GET_STATUS(sc->stats.phy.state) == 2) + +/* + * Set of macros to handle unaligned data in the firmware blob. + * The FW_GET_BYTE() macro is provided only for consistency. + */ + +#define FW_GET_BYTE(p) *((__u8 *) (p)) +#define FW_GET_WORD(p) le16_to_cpu(get_unaligned((__le16 *) (p))) +#define FW_GET_LONG(p) le32_to_cpu(get_unaligned((__le32 *) (p))) + +#define FW_DIR "ueagle-atm/" +#define NB_MODEM 4 + +#define BULK_TIMEOUT 300 +#define CTRL_TIMEOUT 1000 + +#define ACK_TIMEOUT msecs_to_jiffies(1500) + +#define UEA_INTR_IFACE_NO 0 +#define UEA_US_IFACE_NO 1 +#define UEA_DS_IFACE_NO 2 + +#define FASTEST_ISO_INTF 8 + +#define UEA_BULK_DATA_PIPE 0x02 +#define UEA_IDMA_PIPE 0x04 +#define UEA_INTR_PIPE 0x04 +#define UEA_ISO_DATA_PIPE 0x08 + +#define UEA_SET_BLOCK 0x0001 +#define UEA_SET_MODE 0x0003 +#define UEA_SET_2183_DATA 0x0004 +#define UEA_SET_TIMEOUT 0x0011 + +#define UEA_LOOPBACK_OFF 0x0002 +#define UEA_LOOPBACK_ON 0x0003 +#define UEA_BOOT_IDMA 0x0006 +#define UEA_START_RESET 0x0007 +#define UEA_END_RESET 0x0008 + +#define UEA_SWAP_MAILBOX (0x3fcd | 0x4000) +#define UEA_MPTX_START (0x3fce | 0x4000) +#define UEA_MPTX_MAILBOX (0x3fd6 | 0x4000) +#define UEA_MPRX_MAILBOX (0x3fdf | 0x4000) + +/* structure describing a block within a DSP page */ +struct block_info { + __le16 wHdr; +#define UEA_BIHDR 0xabcd + __le16 wAddress; + __le16 wSize; + __le16 wOvlOffset; + __le16 wOvl; /* overlay */ + __le16 wLast; +} __attribute__ ((packed)); +#define BLOCK_INFO_SIZE 12 + +/* structure representing a CMV (Configuration and Management Variable) */ +struct cmv { + __le16 wPreamble; +#define PREAMBLE 0x535c + __u8 bDirection; +#define MODEMTOHOST 0x01 +#define HOSTTOMODEM 0x10 + __u8 bFunction; +#define FUNCTION_TYPE(f) ((f) >> 4) +#define MEMACCESS 0x1 +#define ADSLDIRECTIVE 0x7 + +#define FUNCTION_SUBTYPE(f) ((f) & 0x0f) +/* for MEMACCESS */ +#define REQUESTREAD 0x0 +#define REQUESTWRITE 0x1 +#define REPLYREAD 0x2 +#define REPLYWRITE 0x3 +/* for ADSLDIRECTIVE */ +#define KERNELREADY 0x0 +#define MODEMREADY 0x1 + +#define MAKEFUNCTION(t, s) (((t) & 0xf) << 4 | ((s) & 0xf)) + __le16 wIndex; + __le32 dwSymbolicAddress; +#define MAKESA(a, b, c, d) \ + (((c) & 0xff) << 24 | \ + ((d) & 0xff) << 16 | \ + ((a) & 0xff) << 8 | \ + ((b) & 0xff)) + +#define SA_CNTL MAKESA('C', 'N', 'T', 'L') +#define SA_DIAG MAKESA('D', 'I', 'A', 'G') +#define SA_INFO MAKESA('I', 'N', 'F', 'O') +#define SA_OPTN MAKESA('O', 'P', 'T', 'N') +#define SA_RATE MAKESA('R', 'A', 'T', 'E') +#define SA_STAT MAKESA('S', 'T', 'A', 'T') + __le16 wOffsetAddress; + __le32 dwData; +} __attribute__ ((packed)); +#define CMV_SIZE 16 + +/* structure representing swap information */ +struct swap_info { + __u8 bSwapPageNo; + __u8 bOvl; /* overlay */ +} __attribute__ ((packed)); + +/* structure representing interrupt data */ +struct intr_pkt { + __u8 bType; + __u8 bNotification; + __le16 wValue; + __le16 wIndex; + __le16 wLength; + __le16 wInterrupt; +#define INT_LOADSWAPPAGE 0x0001 +#define INT_INCOMINGCMV 0x0002 + union { + struct { + struct swap_info swapinfo; + __le16 wDataSize; + } __attribute__ ((packed)) s1; + + struct { + struct cmv cmv; + __le16 wDataSize; + } __attribute__ ((packed)) s2; + } __attribute__ ((packed)) u; +#define bSwapPageNo u.s1.swapinfo.bSwapPageNo +#define bOvl u.s1.swapinfo.bOvl +} __attribute__ ((packed)); +#define INTR_PKT_SIZE 28 + +static struct usb_driver uea_driver; +static DECLARE_MUTEX(uea_semaphore); +static const char *chip_name[] = {"ADI930", "Eagle I", "Eagle II", "Eagle III"}; + +static int modem_index; +static unsigned int debug; +static int sync_wait[NB_MODEM]; +static char *cmv_file[NB_MODEM]; + +module_param(debug, uint, 0644); +MODULE_PARM_DESC(debug, "module debug level (0=off,1=on,2=verbose)"); +module_param_array(sync_wait, bool, NULL, 0644); +MODULE_PARM_DESC(sync_wait, "wait the synchronisation before starting ATM"); +module_param_array(cmv_file, charp, NULL, 0644); +MODULE_PARM_DESC(cmv_file, + "file name with configuration and management variables"); + +#define UPDATE_ATM_STAT(type, val) \ + do { \ + if (sc->usbatm->atm_dev) \ + sc->usbatm->atm_dev->type = val; \ + } while (0) + +/* Firmware loading */ +#define LOAD_INTERNAL 0xA0 +#define F8051_USBCS 0x7f92 + +/** + * uea_send_modem_cmd - Send a command for pre-firmware devices. + */ +static int uea_send_modem_cmd(struct usb_device *usb, + u16 addr, u16 size, u8 * buff) +{ + int ret = -ENOMEM; + u8 *xfer_buff; + + xfer_buff = kmalloc(size, GFP_KERNEL); + if (xfer_buff) { + memcpy(xfer_buff, buff, size); + ret = usb_control_msg(usb, + usb_sndctrlpipe(usb, 0), + LOAD_INTERNAL, + USB_DIR_OUT | USB_TYPE_VENDOR | + USB_RECIP_DEVICE, addr, 0, xfer_buff, + size, CTRL_TIMEOUT); + kfree(xfer_buff); + } + + if (ret < 0) + return ret; + + return (ret == size) ? 0 : -EIO; +} + +static void uea_upload_pre_firmware(const struct firmware *fw_entry, void *context) +{ + struct usb_device *usb = context; + u8 *pfw, value; + u32 crc = 0; + int ret, size; + + uea_enters(usb); + if (!fw_entry) { + uea_err(usb, "firmware is not available\n"); + goto err; + } + + pfw = fw_entry->data; + size = fw_entry->size; + + crc = FW_GET_LONG(pfw); + pfw += 4; + size -= 4; + if (crc32_be(0, pfw, size) != crc) { + uea_err(usb, "firmware is corrupted\n"); + goto err; + } + + /* + * Start to upload formware : send reset + */ + value = 1; + ret = uea_send_modem_cmd(usb, F8051_USBCS, sizeof(value), &value); + + if (ret < 0) { + uea_err(usb, "modem reset failed with error %d\n", ret); + goto err; + } + + while (size > 0) { + u8 len = FW_GET_BYTE(pfw); + u16 add = FW_GET_WORD(pfw + 1); + ret = uea_send_modem_cmd(usb, add, len, pfw + 3); + if (ret < 0) { + uea_err(usb, "uploading firmware data failed " + "with error %d\n", ret); + goto err; + } + pfw += len + 3; + size -= len + 3; + } + + /* + * Tell the modem we finish : de-assert reset + */ + value = 0; + ret = uea_send_modem_cmd(usb, F8051_USBCS, 1, &value); + if (ret < 0) + uea_err(usb, "modem de-assert failed with error %d\n", ret); + else + uea_info(usb, "firmware uploaded\n"); + +err: + uea_leaves(usb); +} + +/** + * uea_load_firmware - Load usb firmware for pre-firmware devices. + */ +static int uea_load_firmware(struct usb_device *usb, unsigned int ver) +{ + int ret; + char *fw_name = FW_DIR "eagle.fw"; + + uea_enters(usb); + uea_info(usb, "pre-firmware device, uploading firmware\n"); + + switch (ver) { + case ADI930: + fw_name = FW_DIR "adi930.fw"; + break; + case EAGLE_I: + fw_name = FW_DIR "eagleI.fw"; + break; + case EAGLE_II: + fw_name = FW_DIR "eagleII.fw"; + break; + case EAGLE_III: + fw_name = FW_DIR "eagleIII.fw"; + break; + } + + ret = request_firmware_nowait(THIS_MODULE, 1, fw_name, &usb->dev, usb, uea_upload_pre_firmware); + if (ret) + uea_err(usb, "firmware %s is not available\n", fw_name); + else + uea_info(usb, "loading firmware %s\n", fw_name); + + uea_leaves(usb); + return ret; +} + +/* modem management : dsp firmware, send/read CMV, monitoring statistic + */ + +/* + * Make sure that the DSP code provided is safe to use. + */ +static int check_dsp(u8 *dsp, unsigned int len) +{ + u8 pagecount, blockcount; + u16 blocksize; + u32 pageoffset; + unsigned int i, j, p, pp; + + /* enough space for pagecount? */ + if (len < 1) + return 1; + + pagecount = FW_GET_BYTE(dsp); + p = 1; + + /* enough space for page offsets? */ + if (p + 4 * pagecount > len) + return 1; + + for (i = 0; i < pagecount; i++) { + + pageoffset = FW_GET_LONG(dsp + p); + p += 4; + + if (pageoffset == 0) + continue; + + /* enough space for blockcount? */ + if (pageoffset >= len) + return 1; + + pp = pageoffset; + blockcount = FW_GET_BYTE(dsp + pp); + pp += 1; + + for (j = 0; j < blockcount; j++) { + + /* enough space for block header? */ + if (pp + 4 > len) + return 1; + + pp += 2; /* skip blockaddr */ + blocksize = FW_GET_WORD(dsp + pp); + pp += 2; + + /* enough space for block data? */ + if (pp + blocksize > len) + return 1; + + pp += blocksize; + } + } + + return 0; +} + +/* + * send data to the idma pipe + * */ +static int uea_idma_write(struct uea_softc *sc, void *data, u32 size) +{ + int ret = -ENOMEM; + u8 *xfer_buff; + int bytes_read; + + xfer_buff = kmalloc(size, GFP_KERNEL); + if (!xfer_buff) { + uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n"); + return ret; + } + + memcpy(xfer_buff, data, size); + + ret = usb_bulk_msg(sc->usb_dev, + usb_sndbulkpipe(sc->usb_dev, UEA_IDMA_PIPE), + xfer_buff, size, &bytes_read, BULK_TIMEOUT); + + kfree(xfer_buff); + if (ret < 0) + return ret; + if (size != bytes_read) { + uea_err(INS_TO_USBDEV(sc), "size != bytes_read %d %d\n", size, + bytes_read); + return -EIO; + } + + return 0; +} + +static int request_dsp(struct uea_softc *sc) +{ + int ret; + char *dsp_name; + + if (UEA_CHIP_VERSION(sc) == ADI930) { + if (IS_ISDN(sc)) + dsp_name = FW_DIR "DSP9i.bin"; + else + dsp_name = FW_DIR "DSP9p.bin"; + } else { + if (IS_ISDN(sc)) + dsp_name = FW_DIR "DSPei.bin"; + else + dsp_name = FW_DIR "DSPep.bin"; + } + + ret = request_firmware(&sc->dsp_firm, + dsp_name, &sc->usb_dev->dev); + if (ret < 0) { + uea_err(INS_TO_USBDEV(sc), + "requesting firmware %s failed with error %d\n", + dsp_name, ret); + return ret; + } + + if (check_dsp(sc->dsp_firm->data, sc->dsp_firm->size)) { + uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n", + dsp_name); + release_firmware(sc->dsp_firm); + sc->dsp_firm = NULL; + return -EILSEQ; + } + + return 0; +} + +/* + * The uea_load_page() function must be called within a process context + */ +static void uea_load_page(void *xsc) +{ + struct uea_softc *sc = xsc; + u16 pageno = sc->pageno; + u16 ovl = sc->ovl; + struct block_info bi; + + u8 *p; + u8 pagecount, blockcount; + u16 blockaddr, blocksize; + u32 pageoffset; + int i; + + /* reload firmware when reboot start and it's loaded already */ + if (ovl == 0 && pageno == 0 && sc->dsp_firm) { + release_firmware(sc->dsp_firm); + sc->dsp_firm = NULL; + } + + if (sc->dsp_firm == NULL && request_dsp(sc) < 0) + return; + + p = sc->dsp_firm->data; + pagecount = FW_GET_BYTE(p); + p += 1; + + if (pageno >= pagecount) + goto bad1; + + p += 4 * pageno; + pageoffset = FW_GET_LONG(p); + + if (pageoffset == 0) + goto bad1; + + p = sc->dsp_firm->data + pageoffset; + blockcount = FW_GET_BYTE(p); + p += 1; + + uea_dbg(INS_TO_USBDEV(sc), + "sending %u blocks for DSP page %u\n", blockcount, pageno); + + bi.wHdr = cpu_to_le16(UEA_BIHDR); + bi.wOvl = cpu_to_le16(ovl); + bi.wOvlOffset = cpu_to_le16(ovl | 0x8000); + + for (i = 0; i < blockcount; i++) { + blockaddr = FW_GET_WORD(p); + p += 2; + + blocksize = FW_GET_WORD(p); + p += 2; + + bi.wSize = cpu_to_le16(blocksize); + bi.wAddress = cpu_to_le16(blockaddr); + bi.wLast = cpu_to_le16((i == blockcount - 1) ? 1 : 0); + + /* send block info through the IDMA pipe */ + if (uea_idma_write(sc, &bi, BLOCK_INFO_SIZE)) + goto bad2; + + /* send block data through the IDMA pipe */ + if (uea_idma_write(sc, p, blocksize)) + goto bad2; + + p += blocksize; + } + + return; + +bad2: + uea_err(INS_TO_USBDEV(sc), "sending DSP block %u failed\n", i); + return; +bad1: + uea_err(INS_TO_USBDEV(sc), "invalid DSP page %u requested\n",pageno); +} + +static inline void wake_up_cmv_ack(struct uea_softc *sc) +{ + sc->cmv_ack = 1; + wake_up(&sc->cmv_ack_wait); +} + +static inline int wait_cmv_ack(struct uea_softc *sc) +{ + int ret = wait_event_timeout(sc->cmv_ack_wait, + sc->cmv_ack, ACK_TIMEOUT); + sc->cmv_ack = 0; + + if (ret < 0) + return ret; + + return (ret == 0) ? -ETIMEDOUT : 0; + +} + +#define UCDC_SEND_ENCAPSULATED_COMMAND 0x00 + +static int uea_request(struct uea_softc *sc, + u16 value, u16 index, u16 size, void *data) +{ + u8 *xfer_buff; + int ret = -ENOMEM; + + xfer_buff = kmalloc(size, GFP_KERNEL); + if (!xfer_buff) { + uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n"); + return ret; + } + memcpy(xfer_buff, data, size); + + ret = usb_control_msg(sc->usb_dev, usb_sndctrlpipe(sc->usb_dev, 0), + UCDC_SEND_ENCAPSULATED_COMMAND, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, index, xfer_buff, size, CTRL_TIMEOUT); + + kfree(xfer_buff); + if (ret < 0) { + uea_err(INS_TO_USBDEV(sc), "usb_control_msg error %d\n", ret); + return ret; + } + + if (ret != size) { + uea_err(INS_TO_USBDEV(sc), + "usb_control_msg send only %d bytes (instead of %d)\n", + ret, size); + return -EIO; + } + + return 0; +} + +static int uea_cmv(struct uea_softc *sc, + u8 function, u32 address, u16 offset, u32 data) +{ + struct cmv cmv; + int ret; + + /* we send a request, but we expect a reply */ + sc->cmv_function = function | 0x2; + sc->cmv_idx++; + sc->cmv_address = address; + sc->cmv_offset = offset; + + cmv.wPreamble = cpu_to_le16(PREAMBLE); + cmv.bDirection = HOSTTOMODEM; + cmv.bFunction = function; + cmv.wIndex = cpu_to_le16(sc->cmv_idx); + put_unaligned(cpu_to_le32(address), &cmv.dwSymbolicAddress); + cmv.wOffsetAddress = cpu_to_le16(offset); + put_unaligned(cpu_to_le32(data >> 16 | data << 16), &cmv.dwData); + + ret = uea_request(sc, UEA_SET_BLOCK, UEA_MPTX_START, CMV_SIZE, &cmv); + if (ret < 0) + return ret; + return wait_cmv_ack(sc); +} + +static inline int uea_read_cmv(struct uea_softc *sc, + u32 address, u16 offset, u32 *data) +{ + int ret = uea_cmv(sc, MAKEFUNCTION(MEMACCESS, REQUESTREAD), + address, offset, 0); + if (ret < 0) + uea_err(INS_TO_USBDEV(sc), + "reading cmv failed with error %d\n", ret); + else + *data = sc->data; + + return ret; +} + +static inline int uea_write_cmv(struct uea_softc *sc, + u32 address, u16 offset, u32 data) +{ + int ret = uea_cmv(sc, MAKEFUNCTION(MEMACCESS, REQUESTWRITE), + address, offset, data); + if (ret < 0) + uea_err(INS_TO_USBDEV(sc), + "writing cmv failed with error %d\n", ret); + + return ret; +} + +/* + * Monitor the modem and update the stat + * return 0 if everything is ok + * return < 0 if an error occurs (-EAGAIN reboot needed) + */ +static int uea_stat(struct uea_softc *sc) +{ + u32 data; + int ret; + + uea_enters(INS_TO_USBDEV(sc)); + data = sc->stats.phy.state; + + ret = uea_read_cmv(sc, SA_STAT, 0, &sc->stats.phy.state); + if (ret < 0) + return ret; + + switch (GET_STATUS(sc->stats.phy.state)) { + case 0: /* not yet synchronized */ + uea_dbg(INS_TO_USBDEV(sc), + "modem not yet synchronized\n"); + return 0; + + case 1: /* initialization */ + uea_dbg(INS_TO_USBDEV(sc), "modem initializing\n"); + return 0; + + case 2: /* operational */ + uea_vdbg(INS_TO_USBDEV(sc), "modem operational\n"); + break; + + case 3: /* fail ... */ + uea_info(INS_TO_USBDEV(sc), "modem synchronization failed\n"); + return -EAGAIN; + + case 4 ... 6: /* test state */ + uea_warn(INS_TO_USBDEV(sc), + "modem in test mode - not supported\n"); + return -EAGAIN; + + case 7: /* fast-retain ... */ + uea_info(INS_TO_USBDEV(sc), "modem in fast-retain mode\n"); + return 0; + default: + uea_err(INS_TO_USBDEV(sc), "modem invalid SW mode %d\n", + GET_STATUS(sc->stats.phy.state)); + return -EAGAIN; + } + + if (GET_STATUS(data) != 2) { + uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_OFF, 0, NULL); + uea_info(INS_TO_USBDEV(sc), "modem operational\n"); + + /* release the dsp firmware as it is not needed until + * the next failure + */ + if (sc->dsp_firm) { + release_firmware(sc->dsp_firm); + sc->dsp_firm = NULL; + } + + ret = uea_read_cmv(sc, SA_INFO, 10, &sc->stats.phy.firmid); + if (ret < 0) + return ret; + uea_info(INS_TO_USBDEV(sc), "ATU-R firmware version : %x\n", + sc->stats.phy.firmid); + } + + /* always update it as atm layer could not be init when we switch to + * operational state + */ + UPDATE_ATM_STAT(signal, ATM_PHY_SIG_FOUND); + + /* wake up processes waiting for synchronization */ + wake_up(&sc->sync_q); + + ret = uea_read_cmv(sc, SA_DIAG, 2, &sc->stats.phy.flags); + if (ret < 0) + return ret; + sc->stats.phy.mflags |= sc->stats.phy.flags; + + /* in case of a flags ( for example delineation LOSS (& 0x10)), + * we check the status again in order to detect the failure earlier + */ + if (sc->stats.phy.flags) { + uea_dbg(INS_TO_USBDEV(sc), "Stat flag = %d\n", + sc->stats.phy.flags); + return 0; + } + + ret = uea_read_cmv(sc, SA_RATE, 0, &data); + if (ret < 0) + return ret; + + /* in bulk mode the modem have problem with high rate + * changing internal timing could improve things, but the + * value is misterious. + * ADI930 don't support it (-EPIPE error). + */ + if (UEA_CHIP_VERSION(sc) != ADI930 + && sc->stats.phy.dsrate != (data >> 16) * 32) { + /* Original timming from ADI(used in windows driver) + * 0x20ffff>>16 * 32 = 32 * 32 = 1Mbits + */ + u16 timeout = (data <= 0x20ffff) ? 0 : 1; + ret = uea_request(sc, UEA_SET_TIMEOUT, timeout, 0, NULL); + uea_info(INS_TO_USBDEV(sc), + "setting new timeout %d%s\n", timeout, + ret < 0?" failed":""); + } + sc->stats.phy.dsrate = (data >> 16) * 32; + sc->stats.phy.usrate = (data & 0xffff) * 32; + UPDATE_ATM_STAT(link_rate, sc->stats.phy.dsrate * 1000 / 424); + + ret = uea_read_cmv(sc, SA_DIAG, 23, &data); + if (ret < 0) + return ret; + sc->stats.phy.dsattenuation = (data & 0xff) / 2; + + ret = uea_read_cmv(sc, SA_DIAG, 47, &data); + if (ret < 0) + return ret; + sc->stats.phy.usattenuation = (data & 0xff) / 2; + + ret = uea_read_cmv(sc, SA_DIAG, 25, &sc->stats.phy.dsmargin); + if (ret < 0) + return ret; + + ret = uea_read_cmv(sc, SA_DIAG, 49, &sc->stats.phy.usmargin); + if (ret < 0) + return ret; + + ret = uea_read_cmv(sc, SA_DIAG, 51, &sc->stats.phy.rxflow); + if (ret < 0) + return ret; + + ret = uea_read_cmv(sc, SA_DIAG, 52, &sc->stats.phy.txflow); + if (ret < 0) + return ret; + + ret = uea_read_cmv(sc, SA_DIAG, 54, &sc->stats.phy.dsunc); + if (ret < 0) + return ret; + + /* only for atu-c */ + ret = uea_read_cmv(sc, SA_DIAG, 58, &sc->stats.phy.usunc); + if (ret < 0) + return ret; + + ret = uea_read_cmv(sc, SA_DIAG, 53, &sc->stats.phy.dscorr); + if (ret < 0) + return ret; + + /* only for atu-c */ + ret = uea_read_cmv(sc, SA_DIAG, 57, &sc->stats.phy.uscorr); + if (ret < 0) + return ret; + + ret = uea_read_cmv(sc, SA_INFO, 8, &sc->stats.phy.vidco); + if (ret < 0) + return ret; + + ret = uea_read_cmv(sc, SA_INFO, 13, &sc->stats.phy.vidcpe); + if (ret < 0) + return ret; + + return 0; +} + +static int request_cmvs(struct uea_softc *sc, + struct uea_cmvs **cmvs, const struct firmware **fw) +{ + int ret, size; + u8 *data; + char *file; + static char cmv_name[256] = FW_DIR; + + if (cmv_file[sc->modem_index] == NULL) { + if (UEA_CHIP_VERSION(sc) == ADI930) + file = (IS_ISDN(sc)) ? "CMV9i.bin" : "CMV9p.bin"; + else + file = (IS_ISDN(sc)) ? "CMVei.bin" : "CMVep.bin"; + } else + file = cmv_file[sc->modem_index]; + + strcpy(cmv_name, FW_DIR); + strlcat(cmv_name, file, sizeof(cmv_name)); + + ret = request_firmware(fw, cmv_name, &sc->usb_dev->dev); + if (ret < 0) { + uea_err(INS_TO_USBDEV(sc), + "requesting firmware %s failed with error %d\n", + cmv_name, ret); + return ret; + } + + data = (u8 *) (*fw)->data; + size = *data * sizeof(struct uea_cmvs) + 1; + if (size != (*fw)->size) { + uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n", + cmv_name); + release_firmware(*fw); + return -EILSEQ; + } + + *cmvs = (struct uea_cmvs *)(data + 1); + return *data; +} + +/* Start boot post firmware modem: + * - send reset commands through usb control pipe + * - start workqueue for DSP loading + * - send CMV options to modem + */ + +static int uea_start_reset(struct uea_softc *sc) +{ + u16 zero = 0; /* ;-) */ + int i, len, ret; + struct uea_cmvs *cmvs; + const struct firmware *cmvs_fw; + + uea_enters(INS_TO_USBDEV(sc)); + uea_info(INS_TO_USBDEV(sc), "(re)booting started\n"); + + sc->booting = 1; + UPDATE_ATM_STAT(signal, ATM_PHY_SIG_LOST); + + /* reset statistics */ + memset(&sc->stats, 0, sizeof(struct uea_stats)); + + /* tell the modem that we want to boot in IDMA mode */ + uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL); + uea_request(sc, UEA_SET_MODE, UEA_BOOT_IDMA, 0, NULL); + + /* enter reset mode */ + uea_request(sc, UEA_SET_MODE, UEA_START_RESET, 0, NULL); + + /* original driver use 200ms, but windows driver use 100ms */ + msleep(100); + + /* leave reset mode */ + uea_request(sc, UEA_SET_MODE, UEA_END_RESET, 0, NULL); + + /* clear tx and rx mailboxes */ + uea_request(sc, UEA_SET_2183_DATA, UEA_MPTX_MAILBOX, 2, &zero); + uea_request(sc, UEA_SET_2183_DATA, UEA_MPRX_MAILBOX, 2, &zero); + uea_request(sc, UEA_SET_2183_DATA, UEA_SWAP_MAILBOX, 2, &zero); + + msleep(1000); + sc->cmv_function = MAKEFUNCTION(ADSLDIRECTIVE, MODEMREADY); + sc->booting = 0; + + /* start loading DSP */ + sc->pageno = 0; + sc->ovl = 0; + schedule_work(&sc->task); + + /* wait for modem ready CMV */ + ret = wait_cmv_ack(sc); + if (ret < 0) + return ret; + + /* Enter in R-IDLE (cmv) until instructed otherwise */ + ret = uea_write_cmv(sc, SA_CNTL, 0, 1); + if (ret < 0) + return ret; + + /* get options */ + ret = len = request_cmvs(sc, &cmvs, &cmvs_fw); + if (ret < 0) + return ret; + + /* send options */ + for (i = 0; i < len; i++) { + ret = uea_write_cmv(sc, FW_GET_LONG(&cmvs[i].address), + FW_GET_WORD(&cmvs[i].offset), + FW_GET_LONG(&cmvs[i].data)); + if (ret < 0) + goto out; + } + /* Enter in R-ACT-REQ */ + ret = uea_write_cmv(sc, SA_CNTL, 0, 2); +out: + release_firmware(cmvs_fw); + sc->reset = 0; + uea_leaves(INS_TO_USBDEV(sc)); + return ret; +} + +/* + * In case of an error wait 1s before rebooting the modem + * if the modem don't request reboot (-EAGAIN). + * Monitor the modem every 1s. + */ + +static int uea_kthread(void *data) +{ + struct uea_softc *sc = data; + int ret = -EAGAIN; + + uea_enters(INS_TO_USBDEV(sc)); + while (!kthread_should_stop()) { + if (ret < 0 || sc->reset) + ret = uea_start_reset(sc); + if (!ret) + ret = uea_stat(sc); + if (ret != -EAGAIN) + msleep(1000); + } + uea_leaves(INS_TO_USBDEV(sc)); + return ret; +} + +/* Load second usb firmware for ADI930 chip */ +static int load_XILINX_firmware(struct uea_softc *sc) +{ + const struct firmware *fw_entry; + int ret, size, u, ln; + u8 *pfw, value; + char *fw_name = FW_DIR "930-fpga.bin"; + + uea_enters(INS_TO_USBDEV(sc)); + + ret = request_firmware(&fw_entry, fw_name, &sc->usb_dev->dev); + if (ret) { + uea_err(INS_TO_USBDEV(sc), "firmware %s is not available\n", + fw_name); + goto err0; + } + + pfw = fw_entry->data; + size = fw_entry->size; + if (size != 0x577B) { + uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n", + fw_name); + ret = -EILSEQ; + goto err1; + } + for (u = 0; u < size; u += ln) { + ln = min(size - u, 64); + ret = uea_request(sc, 0xe, 0, ln, pfw + u); + if (ret < 0) { + uea_err(INS_TO_USBDEV(sc), + "elsa download data failed (%d)\n", ret); + goto err1; + } + } + + /* finish to send the fpga + */ + ret = uea_request(sc, 0xe, 1, 0, NULL); + if (ret < 0) { + uea_err(INS_TO_USBDEV(sc), + "elsa download data failed (%d)\n", ret); + goto err1; + } + + /* + * Tell the modem we finish : de-assert reset + */ + value = 0; + ret = uea_send_modem_cmd(sc->usb_dev, 0xe, 1, &value); + if (ret < 0) + uea_err(sc->usb_dev, "elsa de-assert failed with error %d\n", ret); + + +err1: + release_firmware(fw_entry); +err0: + uea_leaves(INS_TO_USBDEV(sc)); + return ret; +} + +static void uea_dispatch_cmv(struct uea_softc *sc, struct cmv* cmv) +{ + uea_enters(INS_TO_USBDEV(sc)); + if (le16_to_cpu(cmv->wPreamble) != PREAMBLE) + goto bad1; + + if (cmv->bDirection != MODEMTOHOST) + goto bad1; + + /* FIXME : ADI930 reply wrong preambule (func = 2, sub = 2) to + * the first MEMACESS cmv. Ignore it... + */ + if (cmv->bFunction != sc->cmv_function) { + if (UEA_CHIP_VERSION(sc) == ADI930 + && cmv->bFunction == MAKEFUNCTION(2, 2)) { + cmv->wIndex = cpu_to_le16(sc->cmv_idx); + put_unaligned(cpu_to_le32(sc->cmv_address), &cmv->dwSymbolicAddress); + cmv->wOffsetAddress = cpu_to_le16(sc->cmv_offset); + } + else + goto bad2; + } + + if (cmv->bFunction == MAKEFUNCTION(ADSLDIRECTIVE, MODEMREADY)) { + wake_up_cmv_ack(sc); + return; + } + + /* in case of MEMACCESS */ + if (le16_to_cpu(cmv->wIndex) != sc->cmv_idx || + le32_to_cpu(get_unaligned(&cmv->dwSymbolicAddress)) != + sc->cmv_address + || le16_to_cpu(cmv->wOffsetAddress) != sc->cmv_offset) + goto bad2; + + sc->data = le32_to_cpu(get_unaligned(&cmv->dwData)); + sc->data = sc->data << 16 | sc->data >> 16; + + wake_up_cmv_ack(sc); + return; + +bad2: + uea_err(INS_TO_USBDEV(sc), "unexpected cmv received," + "Function : %d, Subfunction : %d\n", + FUNCTION_TYPE(cmv->bFunction), + FUNCTION_SUBTYPE(cmv->bFunction)); + return; + +bad1: + uea_err(INS_TO_USBDEV(sc), "invalid cmv received, " + "wPreamble %d, bDirection %d\n", + le16_to_cpu(cmv->wPreamble), cmv->bDirection); +} + +/* + * interrupt handler + */ +static void uea_intr(struct urb *urb, struct pt_regs *regs) +{ + struct uea_softc *sc = (struct uea_softc *)urb->context; + struct intr_pkt *intr; + uea_enters(INS_TO_USBDEV(sc)); + + if (urb->status < 0) { + uea_err(INS_TO_USBDEV(sc), "uea_intr() failed with %d\n", + urb->status); + return; + } + + intr = (struct intr_pkt *) urb->transfer_buffer; + + /* device-to-host interrupt */ + if (intr->bType != 0x08 || sc->booting) { + uea_err(INS_TO_USBDEV(sc), "wrong intr\n"); + // rebooting ? + // sc->reset = 1; + goto resubmit; + } + + switch (le16_to_cpu(intr->wInterrupt)) { + case INT_LOADSWAPPAGE: + sc->pageno = intr->bSwapPageNo; + sc->ovl = intr->bOvl >> 4 | intr->bOvl << 4; + schedule_work(&sc->task); + break; + + case INT_INCOMINGCMV: + uea_dispatch_cmv(sc, &intr->u.s2.cmv); + break; + + default: + uea_err(INS_TO_USBDEV(sc), "unknown intr %u\n", + le16_to_cpu(intr->wInterrupt)); + } + +resubmit: + usb_submit_urb(sc->urb_int, GFP_ATOMIC); +} + +/* + * Start the modem : init the data and start kernel thread + */ +static int uea_boot(struct uea_softc *sc) +{ + int ret; + struct intr_pkt *intr; + + uea_enters(INS_TO_USBDEV(sc)); + + INIT_WORK(&sc->task, uea_load_page, sc); + init_waitqueue_head(&sc->sync_q); + init_waitqueue_head(&sc->cmv_ack_wait); + + if (UEA_CHIP_VERSION(sc) == ADI930) + load_XILINX_firmware(sc); + + intr = kmalloc(INTR_PKT_SIZE, GFP_KERNEL); + if (!intr) { + uea_err(INS_TO_USBDEV(sc), + "cannot allocate interrupt package\n"); + uea_leaves(INS_TO_USBDEV(sc)); + return -ENOMEM; + } + + sc->urb_int = usb_alloc_urb(0, GFP_KERNEL); + if (!sc->urb_int) { + uea_err(INS_TO_USBDEV(sc), "cannot allocate interrupt URB\n"); + goto err; + } + + usb_fill_int_urb(sc->urb_int, sc->usb_dev, + usb_rcvintpipe(sc->usb_dev, UEA_INTR_PIPE), + intr, INTR_PKT_SIZE, uea_intr, sc, + sc->usb_dev->actconfig->interface[0]->altsetting[0]. + endpoint[0].desc.bInterval); + + ret = usb_submit_urb(sc->urb_int, GFP_KERNEL); + if (ret < 0) { + uea_err(INS_TO_USBDEV(sc), + "urb submition failed with error %d\n", ret); + goto err1; + } + + sc->kthread = kthread_run(uea_kthread, sc, "ueagle-atm"); + if (sc->kthread == ERR_PTR(-ENOMEM)) { + uea_err(INS_TO_USBDEV(sc), "failed to create thread\n"); + goto err2; + } + + uea_leaves(INS_TO_USBDEV(sc)); + return 0; + +err2: + usb_kill_urb(sc->urb_int); +err1: + kfree(intr); +err: + usb_free_urb(sc->urb_int); + uea_leaves(INS_TO_USBDEV(sc)); + return -ENOMEM; +} + +/* + * Stop the modem : kill kernel thread and free data + */ +static void uea_stop(struct uea_softc *sc) +{ + int ret; + uea_enters(INS_TO_USBDEV(sc)); + ret = kthread_stop(sc->kthread); + uea_info(INS_TO_USBDEV(sc), "kthread finish with status %d\n", ret); + + /* stop any pending boot process */ + flush_scheduled_work(); + + uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL); + + usb_kill_urb(sc->urb_int); + kfree(sc->urb_int->transfer_buffer); + usb_free_urb(sc->urb_int); + + if (sc->dsp_firm) + release_firmware(sc->dsp_firm); + uea_leaves(INS_TO_USBDEV(sc)); +} + +/* syfs interface */ +static struct uea_softc *dev_to_uea(struct device *dev) +{ + struct usb_interface *intf; + struct usbatm_data *usbatm; + + intf = to_usb_interface(dev); + if (!intf) + return NULL; + + usbatm = usb_get_intfdata(intf); + if (!usbatm) + return NULL; + + return usbatm->driver_data; +} + +static ssize_t read_status(struct device *dev, struct device_attribute *attr, + char *buf) +{ + int ret = -ENODEV; + struct uea_softc *sc; + + down(&uea_semaphore); + sc = dev_to_uea(dev); + if (!sc) + goto out; + ret = snprintf(buf, 10, "%08x\n", sc->stats.phy.state); +out: + up(&uea_semaphore); + return ret; +} + +static ssize_t reboot(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + int ret = -ENODEV; + struct uea_softc *sc; + + down(&uea_semaphore); + sc = dev_to_uea(dev); + if (!sc) + goto out; + sc->reset = 1; + ret = count; +out: + up(&uea_semaphore); + return ret; +} + +static DEVICE_ATTR(stat_status, S_IWUGO | S_IRUGO, read_status, reboot); + +static ssize_t read_human_status(struct device *dev, struct device_attribute *attr, + char *buf) +{ + int ret = -ENODEV; + struct uea_softc *sc; + + down(&uea_semaphore); + sc = dev_to_uea(dev); + if (!sc) + goto out; + + switch (GET_STATUS(sc->stats.phy.state)) { + case 0: + ret = sprintf(buf, "Modem is booting\n"); + break; + case 1: + ret = sprintf(buf, "Modem is initializing\n"); + break; + case 2: + ret = sprintf(buf, "Modem is operational\n"); + break; + default: + ret = sprintf(buf, "Modem synchronization failed\n"); + break; + } +out: + up(&uea_semaphore); + return ret; +} + +static DEVICE_ATTR(stat_human_status, S_IWUGO | S_IRUGO, read_human_status, NULL); + +static ssize_t read_delin(struct device *dev, struct device_attribute *attr, + char *buf) +{ + int ret = -ENODEV; + struct uea_softc *sc; + + down(&uea_semaphore); + sc = dev_to_uea(dev); + if (!sc) + goto out; + + if (sc->stats.phy.flags & 0x0C00) + ret = sprintf(buf, "ERROR\n"); + else if (sc->stats.phy.flags & 0x0030) + ret = sprintf(buf, "LOSS\n"); + else + ret = sprintf(buf, "GOOD\n"); +out: + up(&uea_semaphore); + return ret; +} + +static DEVICE_ATTR(stat_delin, S_IWUGO | S_IRUGO, read_delin, NULL); + +#define UEA_ATTR(name, reset) \ + \ +static ssize_t read_##name(struct device *dev, \ + struct device_attribute *attr, char *buf) \ +{ \ + int ret = -ENODEV; \ + struct uea_softc *sc; \ + \ + down(&uea_semaphore); \ + sc = dev_to_uea(dev); \ + if (!sc) \ + goto out; \ + ret = snprintf(buf, 10, "%08x\n", sc->stats.phy.name); \ + if (reset) \ + sc->stats.phy.name = 0; \ +out: \ + up(&uea_semaphore); \ + return ret; \ +} \ + \ +static DEVICE_ATTR(stat_##name, S_IRUGO, read_##name, NULL) + +UEA_ATTR(mflags, 1); +UEA_ATTR(vidcpe, 0); +UEA_ATTR(usrate, 0); +UEA_ATTR(dsrate, 0); +UEA_ATTR(usattenuation, 0); +UEA_ATTR(dsattenuation, 0); +UEA_ATTR(usmargin, 0); +UEA_ATTR(dsmargin, 0); +UEA_ATTR(txflow, 0); +UEA_ATTR(rxflow, 0); +UEA_ATTR(uscorr, 0); +UEA_ATTR(dscorr, 0); +UEA_ATTR(usunc, 0); +UEA_ATTR(dsunc, 0); + +/* Retrieve the device End System Identifier (MAC) */ + +#define htoi(x) (isdigit(x) ? x-'0' : toupper(x)-'A'+10) +static int uea_getesi(struct uea_softc *sc, u_char * esi) +{ + unsigned char mac_str[2 * ETH_ALEN + 1]; + int i; + if (usb_string + (sc->usb_dev, sc->usb_dev->descriptor.iSerialNumber, mac_str, + sizeof(mac_str)) != 2 * ETH_ALEN) + return 1; + + for (i = 0; i < ETH_ALEN; i++) + esi[i] = htoi(mac_str[2 * i]) * 16 + htoi(mac_str[2 * i + 1]); + + return 0; +} + +/* ATM stuff */ +static int uea_atm_open(struct usbatm_data *usbatm, struct atm_dev *atm_dev) +{ + struct uea_softc *sc = usbatm->driver_data; + + return uea_getesi(sc, atm_dev->esi); +} + +static int uea_heavy(struct usbatm_data *usbatm, struct usb_interface *intf) +{ + struct uea_softc *sc = usbatm->driver_data; + + wait_event(sc->sync_q, IS_OPERATIONAL(sc)); + + return 0; + +} + +static int claim_interface(struct usb_device *usb_dev, + struct usbatm_data *usbatm, int ifnum) +{ + int ret; + struct usb_interface *intf = usb_ifnum_to_if(usb_dev, ifnum); + + if (!intf) { + uea_err(usb_dev, "interface %d not found\n", ifnum); + return -ENODEV; + } + + ret = usb_driver_claim_interface(&uea_driver, intf, usbatm); + if (ret != 0) + uea_err(usb_dev, "can't claim interface %d, error %d\n", ifnum, + ret); + return ret; +} + +static void create_fs_entries(struct uea_softc *sc, struct usb_interface *intf) +{ + /* sysfs interface */ + device_create_file(&intf->dev, &dev_attr_stat_status); + device_create_file(&intf->dev, &dev_attr_stat_mflags); + device_create_file(&intf->dev, &dev_attr_stat_human_status); + device_create_file(&intf->dev, &dev_attr_stat_delin); + device_create_file(&intf->dev, &dev_attr_stat_vidcpe); + device_create_file(&intf->dev, &dev_attr_stat_usrate); + device_create_file(&intf->dev, &dev_attr_stat_dsrate); + device_create_file(&intf->dev, &dev_attr_stat_usattenuation); + device_create_file(&intf->dev, &dev_attr_stat_dsattenuation); + device_create_file(&intf->dev, &dev_attr_stat_usmargin); + device_create_file(&intf->dev, &dev_attr_stat_dsmargin); + device_create_file(&intf->dev, &dev_attr_stat_txflow); + device_create_file(&intf->dev, &dev_attr_stat_rxflow); + device_create_file(&intf->dev, &dev_attr_stat_uscorr); + device_create_file(&intf->dev, &dev_attr_stat_dscorr); + device_create_file(&intf->dev, &dev_attr_stat_usunc); + device_create_file(&intf->dev, &dev_attr_stat_dsunc); +} + +static int uea_bind(struct usbatm_data *usbatm, struct usb_interface *intf, + const struct usb_device_id *id, int *heavy) +{ + struct usb_device *usb = interface_to_usbdev(intf); + struct uea_softc *sc; + int ret, ifnum = intf->altsetting->desc.bInterfaceNumber; + + uea_enters(usb); + + /* interface 0 is for firmware/monitoring */ + if (ifnum != UEA_INTR_IFACE_NO) + return -ENODEV; + + *heavy = sync_wait[modem_index]; + + /* interface 1 is for outbound traffic */ + ret = claim_interface(usb, usbatm, UEA_US_IFACE_NO); + if (ret < 0) + return ret; + + /* ADI930 has only 2 interfaces and inbound traffic + * is on interface 1 + */ + if (UEA_CHIP_VERSION(id) != ADI930) { + /* interface 2 is for inbound traffic */ + ret = claim_interface(usb, usbatm, UEA_DS_IFACE_NO); + if (ret < 0) + return ret; + } + + sc = kzalloc(sizeof(struct uea_softc), GFP_KERNEL); + if (!sc) { + uea_err(INS_TO_USBDEV(sc), "uea_init: not enough memory !\n"); + return -ENOMEM; + } + + sc->usb_dev = usb; + usbatm->driver_data = sc; + sc->usbatm = usbatm; + sc->modem_index = (modem_index < NB_MODEM) ? modem_index++ : 0; + sc->driver_info = id->driver_info; + + ret = uea_boot(sc); + if (ret < 0) { + kfree(sc); + return ret; + } + + create_fs_entries(sc, intf); + return 0; +} + +static void destroy_fs_entries(struct uea_softc *sc, struct usb_interface *intf) +{ + /* sysfs interface */ + device_remove_file(&intf->dev, &dev_attr_stat_status); + device_remove_file(&intf->dev, &dev_attr_stat_mflags); + device_remove_file(&intf->dev, &dev_attr_stat_human_status); + device_remove_file(&intf->dev, &dev_attr_stat_delin); + device_remove_file(&intf->dev, &dev_attr_stat_vidcpe); + device_remove_file(&intf->dev, &dev_attr_stat_usrate); + device_remove_file(&intf->dev, &dev_attr_stat_dsrate); + device_remove_file(&intf->dev, &dev_attr_stat_usattenuation); + device_remove_file(&intf->dev, &dev_attr_stat_dsattenuation); + device_remove_file(&intf->dev, &dev_attr_stat_usmargin); + device_remove_file(&intf->dev, &dev_attr_stat_dsmargin); + device_remove_file(&intf->dev, &dev_attr_stat_txflow); + device_remove_file(&intf->dev, &dev_attr_stat_rxflow); + device_remove_file(&intf->dev, &dev_attr_stat_uscorr); + device_remove_file(&intf->dev, &dev_attr_stat_dscorr); + device_remove_file(&intf->dev, &dev_attr_stat_usunc); + device_remove_file(&intf->dev, &dev_attr_stat_dsunc); +} + +static void uea_unbind(struct usbatm_data *usbatm, struct usb_interface *intf) +{ + struct uea_softc *sc = usbatm->driver_data; + + destroy_fs_entries(sc, intf); + uea_stop(sc); + kfree(sc); +} + +static struct usbatm_driver uea_usbatm_driver = { + .driver_name = "ueagle-atm", + .owner = THIS_MODULE, + .bind = uea_bind, + .atm_start = uea_atm_open, + .unbind = uea_unbind, + .heavy_init = uea_heavy, + .in = UEA_BULK_DATA_PIPE, + .out = UEA_BULK_DATA_PIPE, +}; + +static int uea_probe(struct usb_interface *intf, const struct usb_device_id *id) +{ + struct usb_device *usb = interface_to_usbdev(intf); + + uea_enters(usb); + uea_info(usb, "ADSL device founded vid (%#X) pid (%#X) : %s\n", + le16_to_cpu(usb->descriptor.idVendor), + le16_to_cpu(usb->descriptor.idProduct), + chip_name[UEA_CHIP_VERSION(id)]); + + usb_reset_device(usb); + + if (UEA_IS_PREFIRM(id)) + return uea_load_firmware(usb, UEA_CHIP_VERSION(id)); + + return usbatm_usb_probe(intf, id, &uea_usbatm_driver); +} + +static void uea_disconnect(struct usb_interface *intf) +{ + struct usb_device *usb = interface_to_usbdev(intf); + int ifnum = intf->altsetting->desc.bInterfaceNumber; + uea_enters(usb); + + /* ADI930 has 2 interfaces and eagle 3 interfaces. + * Pre-firmware device has one interface + */ + if (usb->config->desc.bNumInterfaces != 1 && ifnum == 0) { + down(&uea_semaphore); + usbatm_usb_disconnect(intf); + up(&uea_semaphore); + uea_info(usb, "ADSL device removed\n"); + } + + uea_leaves(usb); +} + +/* + * List of supported VID/PID + */ +static const struct usb_device_id uea_ids[] = { + {USB_DEVICE(ELSA_VID, ELSA_PID_PREFIRM), .driver_info = ADI930 | PREFIRM}, + {USB_DEVICE(ELSA_VID, ELSA_PID_PSTFIRM), .driver_info = ADI930 | PSTFIRM}, + {USB_DEVICE(EAGLE_VID, EAGLE_I_PID_PREFIRM), .driver_info = EAGLE_I | PREFIRM}, + {USB_DEVICE(EAGLE_VID, EAGLE_I_PID_PSTFIRM), .driver_info = EAGLE_I | PSTFIRM}, + {USB_DEVICE(EAGLE_VID, EAGLE_II_PID_PREFIRM), .driver_info = EAGLE_II | PREFIRM}, + {USB_DEVICE(EAGLE_VID, EAGLE_II_PID_PSTFIRM), .driver_info = EAGLE_II | PSTFIRM}, + {USB_DEVICE(EAGLE_VID, EAGLE_IIC_PID_PREFIRM), .driver_info = EAGLE_II | PREFIRM}, + {USB_DEVICE(EAGLE_VID, EAGLE_IIC_PID_PSTFIRM), .driver_info = EAGLE_II | PSTFIRM}, + {USB_DEVICE(EAGLE_VID, EAGLE_III_PID_PREFIRM), .driver_info = EAGLE_III | PREFIRM}, + {USB_DEVICE(EAGLE_VID, EAGLE_III_PID_PSTFIRM), .driver_info = EAGLE_III | PSTFIRM}, + {USB_DEVICE(USR_VID, MILLER_A_PID_PREFIRM), .driver_info = EAGLE_I | PREFIRM}, + {USB_DEVICE(USR_VID, MILLER_A_PID_PSTFIRM), .driver_info = EAGLE_I | PSTFIRM}, + {USB_DEVICE(USR_VID, MILLER_B_PID_PREFIRM), .driver_info = EAGLE_I | PREFIRM}, + {USB_DEVICE(USR_VID, MILLER_B_PID_PSTFIRM), .driver_info = EAGLE_I | PSTFIRM}, + {USB_DEVICE(USR_VID, HEINEKEN_A_PID_PREFIRM),.driver_info = EAGLE_I | PREFIRM}, + {USB_DEVICE(USR_VID, HEINEKEN_A_PID_PSTFIRM),.driver_info = EAGLE_I | PSTFIRM}, + {USB_DEVICE(USR_VID, HEINEKEN_B_PID_PREFIRM),.driver_info = EAGLE_I | PREFIRM}, + {USB_DEVICE(USR_VID, HEINEKEN_B_PID_PSTFIRM),.driver_info = EAGLE_I | PSTFIRM}, + {} +}; + +/* + * USB driver descriptor + */ +static struct usb_driver uea_driver = { + .owner = THIS_MODULE, + .name = "ueagle-atm", + .id_table = uea_ids, + .probe = uea_probe, + .disconnect = uea_disconnect, +}; + +MODULE_DEVICE_TABLE(usb, uea_ids); + +/** + * uea_init - Initialize the module. + * Register to USB subsystem + */ +static int __init uea_init(void) +{ + printk(KERN_INFO "[ueagle-atm] driver " EAGLEUSBVERSION " loaded\n"); + + usb_register(&uea_driver); + + return 0; +} + +module_init(uea_init); + +/** + * uea_exit - Destroy module + * Deregister with USB subsystem + */ +static void __exit uea_exit(void) +{ + /* + * This calls automatically the uea_disconnect method if necessary: + */ + usb_deregister(&uea_driver); + + printk(KERN_INFO "[ueagle-atm] driver unloaded\n"); +} + +module_exit(uea_exit); + +MODULE_AUTHOR("Damien Bergamini/Matthieu Castet/Stanislaw W. Gruszka"); +MODULE_DESCRIPTION("ADI 930/Eagle USB ADSL Modem driver"); +MODULE_LICENSE("Dual BSD/GPL"); |