| /****************************************************************************** |
| * cxacru.c - driver for USB ADSL modems based on |
| * Conexant AccessRunner chipset |
| * |
| * Copyright (C) 2004 David Woodhouse, Duncan Sands, Roman Kagan |
| * Copyright (C) 2005 Duncan Sands, Roman Kagan (rkagan % mail ! ru) |
| * |
| * 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. |
| * |
| ******************************************************************************/ |
| |
| /* |
| * Credit is due for Josep Comas, who created the original patch to speedtch.c |
| * to support the different padding used by the AccessRunner (now generalized |
| * into usbatm), and the userspace firmware loading utility. |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/kernel.h> |
| #include <linux/timer.h> |
| #include <linux/errno.h> |
| #include <linux/slab.h> |
| #include <linux/init.h> |
| #include <linux/device.h> /* FIXME: linux/firmware.h should include it itself */ |
| #include <linux/firmware.h> |
| |
| #include "usbatm.h" |
| |
| #define DRIVER_AUTHOR "Roman Kagan, David Woodhouse, Duncan Sands" |
| #define DRIVER_VERSION "0.2" |
| #define DRIVER_DESC "Conexant AccessRunner ADSL USB modem driver" |
| |
| static const char cxacru_driver_name[] = "cxacru"; |
| |
| #define CXACRU_EP_CMD 0x01 /* Bulk/interrupt in/out */ |
| #define CXACRU_EP_DATA 0x02 /* Bulk in/out */ |
| |
| #define CMD_PACKET_SIZE 64 /* Should be maxpacket(ep)? */ |
| |
| /* Addresses */ |
| #define PLLFCLK_ADDR 0x00350068 |
| #define PLLBCLK_ADDR 0x0035006c |
| #define SDRAMEN_ADDR 0x00350010 |
| #define FW_ADDR 0x00801000 |
| #define BR_ADDR 0x00180600 |
| #define SIG_ADDR 0x00180500 |
| #define BR_STACK_ADDR 0x00187f10 |
| |
| /* Values */ |
| #define SDRAM_ENA 0x1 |
| |
| #define CMD_TIMEOUT 2000 /* msecs */ |
| #define POLL_INTERVAL 5000 /* msecs */ |
| |
| /* commands for interaction with the modem through the control channel before |
| * firmware is loaded */ |
| enum cxacru_fw_request { |
| FW_CMD_ERR, |
| FW_GET_VER, |
| FW_READ_MEM, |
| FW_WRITE_MEM, |
| FW_RMW_MEM, |
| FW_CHECKSUM_MEM, |
| FW_GOTO_MEM, |
| }; |
| |
| /* commands for interaction with the modem through the control channel once |
| * firmware is loaded */ |
| enum cxacru_cm_request { |
| CM_REQUEST_UNDEFINED = 0x80, |
| CM_REQUEST_TEST, |
| CM_REQUEST_CHIP_GET_MAC_ADDRESS, |
| CM_REQUEST_CHIP_GET_DP_VERSIONS, |
| CM_REQUEST_CHIP_ADSL_LINE_START, |
| CM_REQUEST_CHIP_ADSL_LINE_STOP, |
| CM_REQUEST_CHIP_ADSL_LINE_GET_STATUS, |
| CM_REQUEST_CHIP_ADSL_LINE_GET_SPEED, |
| CM_REQUEST_CARD_INFO_GET, |
| CM_REQUEST_CARD_DATA_GET, |
| CM_REQUEST_CARD_DATA_SET, |
| CM_REQUEST_COMMAND_HW_IO, |
| CM_REQUEST_INTERFACE_HW_IO, |
| CM_REQUEST_CARD_SERIAL_DATA_PATH_GET, |
| CM_REQUEST_CARD_SERIAL_DATA_PATH_SET, |
| CM_REQUEST_CARD_CONTROLLER_VERSION_GET, |
| CM_REQUEST_CARD_GET_STATUS, |
| CM_REQUEST_CARD_GET_MAC_ADDRESS, |
| CM_REQUEST_CARD_GET_DATA_LINK_STATUS, |
| CM_REQUEST_MAX, |
| }; |
| |
| /* reply codes to the commands above */ |
| enum cxacru_cm_status { |
| CM_STATUS_UNDEFINED, |
| CM_STATUS_SUCCESS, |
| CM_STATUS_ERROR, |
| CM_STATUS_UNSUPPORTED, |
| CM_STATUS_UNIMPLEMENTED, |
| CM_STATUS_PARAMETER_ERROR, |
| CM_STATUS_DBG_LOOPBACK, |
| CM_STATUS_MAX, |
| }; |
| |
| /* indices into CARD_INFO_GET return array */ |
| enum cxacru_info_idx { |
| CXINF_DOWNSTREAM_RATE, |
| CXINF_UPSTREAM_RATE, |
| CXINF_LINK_STATUS, |
| CXINF_LINE_STATUS, |
| CXINF_MAC_ADDRESS_HIGH, |
| CXINF_MAC_ADDRESS_LOW, |
| CXINF_UPSTREAM_SNR_MARGIN, |
| CXINF_DOWNSTREAM_SNR_MARGIN, |
| CXINF_UPSTREAM_ATTENUATION, |
| CXINF_DOWNSTREAM_ATTENUATION, |
| CXINF_TRANSMITTER_POWER, |
| CXINF_UPSTREAM_BITS_PER_FRAME, |
| CXINF_DOWNSTREAM_BITS_PER_FRAME, |
| CXINF_STARTUP_ATTEMPTS, |
| CXINF_UPSTREAM_CRC_ERRORS, |
| CXINF_DOWNSTREAM_CRC_ERRORS, |
| CXINF_UPSTREAM_FEC_ERRORS, |
| CXINF_DOWNSTREAM_FEC_ERRORS, |
| CXINF_UPSTREAM_HEC_ERRORS, |
| CXINF_DOWNSTREAM_HEC_ERRORS, |
| CXINF_LINE_STARTABLE, |
| CXINF_MODULATION, |
| CXINF_ADSL_HEADEND, |
| CXINF_ADSL_HEADEND_ENVIRONMENT, |
| CXINF_CONTROLLER_VERSION, |
| /* dunno what the missing two mean */ |
| CXINF_MAX = 0x1c, |
| }; |
| |
| struct cxacru_modem_type { |
| u32 pll_f_clk; |
| u32 pll_b_clk; |
| int boot_rom_patch; |
| }; |
| |
| struct cxacru_data { |
| struct usbatm_data *usbatm; |
| |
| const struct cxacru_modem_type *modem_type; |
| |
| int line_status; |
| struct work_struct poll_work; |
| |
| /* contol handles */ |
| struct semaphore cm_serialize; |
| u8 *rcv_buf; |
| u8 *snd_buf; |
| struct urb *rcv_urb; |
| struct urb *snd_urb; |
| struct completion rcv_done; |
| struct completion snd_done; |
| }; |
| |
| /* the following three functions are stolen from drivers/usb/core/message.c */ |
| static void cxacru_blocking_completion(struct urb *urb, struct pt_regs *regs) |
| { |
| complete((struct completion *)urb->context); |
| } |
| |
| static void cxacru_timeout_kill(unsigned long data) |
| { |
| usb_unlink_urb((struct urb *) data); |
| } |
| |
| static int cxacru_start_wait_urb(struct urb *urb, struct completion *done, |
| int* actual_length) |
| { |
| struct timer_list timer; |
| int status; |
| |
| init_timer(&timer); |
| timer.expires = jiffies + msecs_to_jiffies(CMD_TIMEOUT); |
| timer.data = (unsigned long) urb; |
| timer.function = cxacru_timeout_kill; |
| add_timer(&timer); |
| wait_for_completion(done); |
| status = urb->status; |
| if (status == -ECONNRESET) |
| status = -ETIMEDOUT; |
| del_timer_sync(&timer); |
| |
| if (actual_length) |
| *actual_length = urb->actual_length; |
| return status; |
| } |
| |
| static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm, |
| u8 *wdata, int wsize, u8 *rdata, int rsize) |
| { |
| int ret, actlen; |
| int offb, offd; |
| const int stride = CMD_PACKET_SIZE - 4; |
| u8 *wbuf = instance->snd_buf; |
| u8 *rbuf = instance->rcv_buf; |
| int wbuflen = ((wsize - 1) / stride + 1) * CMD_PACKET_SIZE; |
| int rbuflen = ((rsize - 1) / stride + 1) * CMD_PACKET_SIZE; |
| |
| if (wbuflen > PAGE_SIZE || rbuflen > PAGE_SIZE) { |
| dbg("too big transfer requested"); |
| ret = -ENOMEM; |
| goto fail; |
| } |
| |
| down(&instance->cm_serialize); |
| |
| /* submit reading urb before the writing one */ |
| init_completion(&instance->rcv_done); |
| ret = usb_submit_urb(instance->rcv_urb, GFP_KERNEL); |
| if (ret < 0) { |
| dbg("submitting read urb for cm %#x failed", cm); |
| ret = ret; |
| goto fail; |
| } |
| |
| memset(wbuf, 0, wbuflen); |
| /* handle wsize == 0 */ |
| wbuf[0] = cm; |
| for (offb = offd = 0; offd < wsize; offd += stride, offb += CMD_PACKET_SIZE) { |
| wbuf[offb] = cm; |
| memcpy(wbuf + offb + 4, wdata + offd, min_t(int, stride, wsize - offd)); |
| } |
| |
| instance->snd_urb->transfer_buffer_length = wbuflen; |
| init_completion(&instance->snd_done); |
| ret = usb_submit_urb(instance->snd_urb, GFP_KERNEL); |
| if (ret < 0) { |
| dbg("submitting write urb for cm %#x failed", cm); |
| ret = ret; |
| goto fail; |
| } |
| |
| ret = cxacru_start_wait_urb(instance->snd_urb, &instance->snd_done, NULL); |
| if (ret < 0) { |
| dbg("sending cm %#x failed", cm); |
| ret = ret; |
| goto fail; |
| } |
| |
| ret = cxacru_start_wait_urb(instance->rcv_urb, &instance->rcv_done, &actlen); |
| if (ret < 0) { |
| dbg("receiving cm %#x failed", cm); |
| ret = ret; |
| goto fail; |
| } |
| if (actlen % CMD_PACKET_SIZE || !actlen) { |
| dbg("response is not a positive multiple of %d: %#x", |
| CMD_PACKET_SIZE, actlen); |
| ret = -EIO; |
| goto fail; |
| } |
| |
| /* check the return status and copy the data to the output buffer, if needed */ |
| for (offb = offd = 0; offd < rsize && offb < actlen; offb += CMD_PACKET_SIZE) { |
| if (rbuf[offb] != cm) { |
| dbg("wrong cm %#x in response", rbuf[offb]); |
| ret = -EIO; |
| goto fail; |
| } |
| if (rbuf[offb + 1] != CM_STATUS_SUCCESS) { |
| dbg("response failed: %#x", rbuf[offb + 1]); |
| ret = -EIO; |
| goto fail; |
| } |
| if (offd >= rsize) |
| break; |
| memcpy(rdata + offd, rbuf + offb + 4, min_t(int, stride, rsize - offd)); |
| offd += stride; |
| } |
| |
| ret = offd; |
| dbg("cm %#x", cm); |
| fail: |
| up(&instance->cm_serialize); |
| return ret; |
| } |
| |
| static int cxacru_cm_get_array(struct cxacru_data *instance, enum cxacru_cm_request cm, |
| u32 *data, int size) |
| { |
| int ret, len; |
| u32 *buf; |
| int offb, offd; |
| const int stride = CMD_PACKET_SIZE / (4 * 2) - 1; |
| int buflen = ((size - 1) / stride + 1 + size * 2) * 4; |
| |
| buf = kmalloc(buflen, GFP_KERNEL); |
| if (!buf) |
| return -ENOMEM; |
| |
| ret = cxacru_cm(instance, cm, NULL, 0, (u8 *) buf, buflen); |
| if (ret < 0) |
| goto cleanup; |
| |
| /* len > 0 && len % 4 == 0 guaranteed by cxacru_cm() */ |
| len = ret / 4; |
| for (offb = 0; offb < len; ) { |
| int l = le32_to_cpu(buf[offb++]); |
| if (l > stride || l > (len - offb) / 2) { |
| dbg("wrong data length %#x in response", l); |
| ret = -EIO; |
| goto cleanup; |
| } |
| while (l--) { |
| offd = le32_to_cpu(buf[offb++]); |
| if (offd >= size) { |
| dbg("wrong index %#x in response", offd); |
| ret = -EIO; |
| goto cleanup; |
| } |
| data[offd] = le32_to_cpu(buf[offb++]); |
| } |
| } |
| |
| ret = 0; |
| |
| cleanup: |
| kfree(buf); |
| return ret; |
| } |
| |
| static int cxacru_card_status(struct cxacru_data *instance) |
| { |
| int ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_STATUS, NULL, 0, NULL, 0); |
| if (ret < 0) { /* firmware not loaded */ |
| dbg("cxacru_adsl_start: CARD_GET_STATUS returned %d", ret); |
| return ret; |
| } |
| return 0; |
| } |
| |
| static void cxacru_poll_status(struct cxacru_data *instance); |
| |
| static int cxacru_atm_start(struct usbatm_data *usbatm_instance, |
| struct atm_dev *atm_dev) |
| { |
| struct cxacru_data *instance = usbatm_instance->driver_data; |
| struct device *dev = &usbatm_instance->usb_intf->dev; |
| /* |
| struct atm_dev *atm_dev = usbatm_instance->atm_dev; |
| */ |
| int ret; |
| |
| dbg("cxacru_atm_start"); |
| |
| /* Read MAC address */ |
| ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_MAC_ADDRESS, NULL, 0, |
| atm_dev->esi, sizeof(atm_dev->esi)); |
| if (ret < 0) { |
| dev_err(dev, "cxacru_atm_start: CARD_GET_MAC_ADDRESS returned %d\n", ret); |
| return ret; |
| } |
| |
| /* start ADSL */ |
| ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_START, NULL, 0, NULL, 0); |
| if (ret < 0) { |
| dev_err(dev, "cxacru_atm_start: CHIP_ADSL_LINE_START returned %d\n", ret); |
| return ret; |
| } |
| |
| /* Start status polling */ |
| cxacru_poll_status(instance); |
| return 0; |
| } |
| |
| static void cxacru_poll_status(struct cxacru_data *instance) |
| { |
| u32 buf[CXINF_MAX] = {}; |
| struct device *dev = &instance->usbatm->usb_intf->dev; |
| struct atm_dev *atm_dev = instance->usbatm->atm_dev; |
| int ret; |
| |
| ret = cxacru_cm_get_array(instance, CM_REQUEST_CARD_INFO_GET, buf, CXINF_MAX); |
| if (ret < 0) { |
| dev_warn(dev, "poll status: error %d\n", ret); |
| goto reschedule; |
| } |
| |
| if (instance->line_status == buf[CXINF_LINE_STATUS]) |
| goto reschedule; |
| |
| instance->line_status = buf[CXINF_LINE_STATUS]; |
| switch (instance->line_status) { |
| case 0: |
| atm_dev->signal = ATM_PHY_SIG_LOST; |
| dev_info(dev, "ADSL line: down\n"); |
| break; |
| |
| case 1: |
| atm_dev->signal = ATM_PHY_SIG_LOST; |
| dev_info(dev, "ADSL line: attemtping to activate\n"); |
| break; |
| |
| case 2: |
| atm_dev->signal = ATM_PHY_SIG_LOST; |
| dev_info(dev, "ADSL line: training\n"); |
| break; |
| |
| case 3: |
| atm_dev->signal = ATM_PHY_SIG_LOST; |
| dev_info(dev, "ADSL line: channel analysis\n"); |
| break; |
| |
| case 4: |
| atm_dev->signal = ATM_PHY_SIG_LOST; |
| dev_info(dev, "ADSL line: exchange\n"); |
| break; |
| |
| case 5: |
| atm_dev->link_rate = buf[CXINF_DOWNSTREAM_RATE] * 1000 / 424; |
| atm_dev->signal = ATM_PHY_SIG_FOUND; |
| |
| dev_info(dev, "ADSL line: up (%d kb/s down | %d kb/s up)\n", |
| buf[CXINF_DOWNSTREAM_RATE], buf[CXINF_UPSTREAM_RATE]); |
| break; |
| |
| case 6: |
| atm_dev->signal = ATM_PHY_SIG_LOST; |
| dev_info(dev, "ADSL line: waiting\n"); |
| break; |
| |
| case 7: |
| atm_dev->signal = ATM_PHY_SIG_LOST; |
| dev_info(dev, "ADSL line: initializing\n"); |
| break; |
| |
| default: |
| atm_dev->signal = ATM_PHY_SIG_UNKNOWN; |
| dev_info(dev, "Unknown line state %02x\n", instance->line_status); |
| break; |
| } |
| reschedule: |
| schedule_delayed_work(&instance->poll_work, msecs_to_jiffies(POLL_INTERVAL)); |
| } |
| |
| static int cxacru_fw(struct usb_device *usb_dev, enum cxacru_fw_request fw, |
| u8 code1, u8 code2, u32 addr, u8 *data, int size) |
| { |
| int ret; |
| u8 *buf; |
| int offd, offb; |
| const int stride = CMD_PACKET_SIZE - 8; |
| |
| buf = (u8 *) __get_free_page(GFP_KERNEL); |
| if (!buf) |
| return -ENOMEM; |
| |
| offb = offd = 0; |
| do { |
| int l = min_t(int, stride, size - offd); |
| buf[offb++] = fw; |
| buf[offb++] = l; |
| buf[offb++] = code1; |
| buf[offb++] = code2; |
| *((u32 *) (buf + offb)) = cpu_to_le32(addr); |
| offb += 4; |
| addr += l; |
| if(l) |
| memcpy(buf + offb, data + offd, l); |
| if (l < stride) |
| memset(buf + offb + l, 0, stride - l); |
| offb += stride; |
| offd += stride; |
| if ((offb >= PAGE_SIZE) || (offd >= size)) { |
| ret = usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_CMD), |
| buf, offb, NULL, CMD_TIMEOUT); |
| if (ret < 0) { |
| dbg("sending fw %#x failed", fw); |
| goto cleanup; |
| } |
| offb = 0; |
| } |
| } while(offd < size); |
| dbg("sent fw %#x", fw); |
| |
| ret = 0; |
| |
| cleanup: |
| free_page((unsigned long) buf); |
| return ret; |
| } |
| |
| static void cxacru_upload_firmware(struct cxacru_data *instance, |
| const struct firmware *fw, |
| const struct firmware *bp, |
| const struct firmware *cf) |
| { |
| int ret; |
| int off; |
| struct usb_device *usb_dev = instance->usbatm->usb_dev; |
| struct device *dev = &instance->usbatm->usb_intf->dev; |
| u16 signature[] = { usb_dev->descriptor.idVendor, usb_dev->descriptor.idProduct }; |
| u32 val; |
| |
| dbg("cxacru_upload_firmware"); |
| |
| /* FirmwarePllFClkValue */ |
| val = cpu_to_le32(instance->modem_type->pll_f_clk); |
| ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, PLLFCLK_ADDR, (u8 *) &val, 4); |
| if (ret) { |
| dev_err(dev, "FirmwarePllFClkValue failed: %d\n", ret); |
| return; |
| } |
| |
| /* FirmwarePllBClkValue */ |
| val = cpu_to_le32(instance->modem_type->pll_b_clk); |
| ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, PLLBCLK_ADDR, (u8 *) &val, 4); |
| if (ret) { |
| dev_err(dev, "FirmwarePllBClkValue failed: %d\n", ret); |
| return; |
| } |
| |
| /* Enable SDRAM */ |
| val = cpu_to_le32(SDRAM_ENA); |
| ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, SDRAMEN_ADDR, (u8 *) &val, 4); |
| if (ret) { |
| dev_err(dev, "Enable SDRAM failed: %d\n", ret); |
| return; |
| } |
| |
| /* Firmware */ |
| ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, FW_ADDR, fw->data, fw->size); |
| if (ret) { |
| dev_err(dev, "Firmware upload failed: %d\n", ret); |
| return; |
| } |
| |
| /* Boot ROM patch */ |
| if (instance->modem_type->boot_rom_patch) { |
| ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, BR_ADDR, bp->data, bp->size); |
| if (ret) { |
| dev_err(dev, "Boot ROM patching failed: %d\n", ret); |
| return; |
| } |
| } |
| |
| /* Signature */ |
| ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, SIG_ADDR, (u8 *) signature, 4); |
| if (ret) { |
| dev_err(dev, "Signature storing failed: %d\n", ret); |
| return; |
| } |
| |
| if (instance->modem_type->boot_rom_patch) { |
| val = cpu_to_le32(BR_ADDR); |
| ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, BR_STACK_ADDR, (u8 *) &val, 4); |
| } |
| else { |
| ret = cxacru_fw(usb_dev, FW_GOTO_MEM, 0x0, 0x0, FW_ADDR, NULL, 0); |
| } |
| if (ret) { |
| dev_err(dev, "Passing control to firmware failed: %d\n", ret); |
| return; |
| } |
| |
| /* Delay to allow firmware to start up. */ |
| msleep_interruptible(1000); |
| |
| usb_clear_halt(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_CMD)); |
| usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev, CXACRU_EP_CMD)); |
| usb_clear_halt(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_DATA)); |
| usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev, CXACRU_EP_DATA)); |
| |
| ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_STATUS, NULL, 0, NULL, 0); |
| if (ret < 0) { |
| dev_err(dev, "modem failed to initialize: %d\n", ret); |
| return; |
| } |
| |
| /* Load config data (le32), doing one packet at a time */ |
| if (cf) |
| for (off = 0; off < cf->size / 4; ) { |
| u32 buf[CMD_PACKET_SIZE / 4 - 1]; |
| int i, len = min_t(int, cf->size / 4 - off, CMD_PACKET_SIZE / 4 / 2 - 1); |
| buf[0] = cpu_to_le32(len); |
| for (i = 0; i < len; i++, off++) { |
| buf[i * 2 + 1] = cpu_to_le32(off); |
| memcpy(buf + i * 2 + 2, cf->data + off * 4, 4); |
| } |
| ret = cxacru_cm(instance, CM_REQUEST_CARD_DATA_SET, |
| (u8 *) buf, len, NULL, 0); |
| if (ret < 0) { |
| dev_err(dev, "load config data failed: %d\n", ret); |
| return; |
| } |
| } |
| |
| msleep_interruptible(4000); |
| } |
| |
| static int cxacru_find_firmware(struct cxacru_data *instance, |
| char* phase, const struct firmware **fw_p) |
| { |
| struct device *dev = &instance->usbatm->usb_intf->dev; |
| char buf[16]; |
| |
| sprintf(buf, "cxacru-%s.bin", phase); |
| dbg("cxacru_find_firmware: looking for %s", buf); |
| |
| if (request_firmware(fw_p, buf, dev)) { |
| dev_dbg(dev, "no stage %s firmware found\n", phase); |
| return -ENOENT; |
| } |
| |
| dev_info(dev, "found firmware %s\n", buf); |
| |
| return 0; |
| } |
| |
| static int cxacru_heavy_init(struct usbatm_data *usbatm_instance, |
| struct usb_interface *usb_intf) |
| { |
| struct device *dev = &usbatm_instance->usb_intf->dev; |
| const struct firmware *fw, *bp, *cf; |
| struct cxacru_data *instance = usbatm_instance->driver_data; |
| |
| int ret = cxacru_find_firmware(instance, "fw", &fw); |
| if (ret) { |
| dev_warn(dev, "firmware (cxacru-fw.bin) unavailable (hotplug misconfiguration?)\n"); |
| return ret; |
| } |
| |
| if (instance->modem_type->boot_rom_patch) { |
| ret = cxacru_find_firmware(instance, "bp", &bp); |
| if (ret) { |
| dev_warn(dev, "boot ROM patch (cxacru-bp.bin) unavailable (hotplug misconfiguration?)\n"); |
| release_firmware(fw); |
| return ret; |
| } |
| } |
| |
| if (cxacru_find_firmware(instance, "cf", &cf)) /* optional */ |
| cf = NULL; |
| |
| cxacru_upload_firmware(instance, fw, bp, cf); |
| |
| if (cf) |
| release_firmware(cf); |
| if (instance->modem_type->boot_rom_patch) |
| release_firmware(bp); |
| release_firmware(fw); |
| |
| ret = cxacru_card_status(instance); |
| if (ret) |
| dbg("modem initialisation failed"); |
| else |
| dbg("done setting up the modem"); |
| |
| return ret; |
| } |
| |
| static int cxacru_bind(struct usbatm_data *usbatm_instance, |
| struct usb_interface *intf, const struct usb_device_id *id, |
| int *need_heavy_init) |
| { |
| struct cxacru_data *instance; |
| struct usb_device *usb_dev = interface_to_usbdev(intf); |
| int ret; |
| |
| /* instance init */ |
| instance = kmalloc(sizeof(*instance), GFP_KERNEL); |
| if (!instance) { |
| dbg("cxacru_bind: no memory for instance data"); |
| return -ENOMEM; |
| } |
| |
| memset(instance, 0, sizeof(*instance)); |
| |
| instance->usbatm = usbatm_instance; |
| instance->modem_type = (struct cxacru_modem_type *) id->driver_info; |
| |
| instance->rcv_buf = (u8 *) __get_free_page(GFP_KERNEL); |
| if (!instance->rcv_buf) { |
| dbg("cxacru_bind: no memory for rcv_buf"); |
| ret = -ENOMEM; |
| goto fail; |
| } |
| instance->snd_buf = (u8 *) __get_free_page(GFP_KERNEL); |
| if (!instance->snd_buf) { |
| dbg("cxacru_bind: no memory for snd_buf"); |
| ret = -ENOMEM; |
| goto fail; |
| } |
| instance->rcv_urb = usb_alloc_urb(0, GFP_KERNEL); |
| if (!instance->rcv_urb) { |
| dbg("cxacru_bind: no memory for rcv_urb"); |
| ret = -ENOMEM; |
| goto fail; |
| } |
| instance->snd_urb = usb_alloc_urb(0, GFP_KERNEL); |
| if (!instance->snd_urb) { |
| dbg("cxacru_bind: no memory for snd_urb"); |
| ret = -ENOMEM; |
| goto fail; |
| } |
| |
| usb_fill_int_urb(instance->rcv_urb, |
| usb_dev, usb_rcvintpipe(usb_dev, CXACRU_EP_CMD), |
| instance->rcv_buf, PAGE_SIZE, |
| cxacru_blocking_completion, &instance->rcv_done, 1); |
| |
| usb_fill_int_urb(instance->snd_urb, |
| usb_dev, usb_sndintpipe(usb_dev, CXACRU_EP_CMD), |
| instance->snd_buf, PAGE_SIZE, |
| cxacru_blocking_completion, &instance->snd_done, 4); |
| |
| init_MUTEX(&instance->cm_serialize); |
| |
| INIT_WORK(&instance->poll_work, (void *)cxacru_poll_status, instance); |
| |
| usbatm_instance->driver_data = instance; |
| |
| *need_heavy_init = cxacru_card_status(instance); |
| |
| return 0; |
| |
| fail: |
| free_page((unsigned long) instance->snd_buf); |
| free_page((unsigned long) instance->rcv_buf); |
| usb_free_urb(instance->snd_urb); |
| usb_free_urb(instance->rcv_urb); |
| kfree(instance); |
| |
| return ret; |
| } |
| |
| static void cxacru_unbind(struct usbatm_data *usbatm_instance, |
| struct usb_interface *intf) |
| { |
| struct cxacru_data *instance = usbatm_instance->driver_data; |
| |
| dbg("cxacru_unbind entered"); |
| |
| if (!instance) { |
| dbg("cxacru_unbind: NULL instance!"); |
| return; |
| } |
| |
| while (!cancel_delayed_work(&instance->poll_work)) |
| flush_scheduled_work(); |
| |
| usb_kill_urb(instance->snd_urb); |
| usb_kill_urb(instance->rcv_urb); |
| usb_free_urb(instance->snd_urb); |
| usb_free_urb(instance->rcv_urb); |
| |
| free_page((unsigned long) instance->snd_buf); |
| free_page((unsigned long) instance->rcv_buf); |
| kfree(instance); |
| |
| usbatm_instance->driver_data = NULL; |
| } |
| |
| static const struct cxacru_modem_type cxacru_cafe = { |
| .pll_f_clk = 0x02d874df, |
| .pll_b_clk = 0x0196a51a, |
| .boot_rom_patch = 1, |
| }; |
| |
| static const struct cxacru_modem_type cxacru_cb00 = { |
| .pll_f_clk = 0x5, |
| .pll_b_clk = 0x3, |
| .boot_rom_patch = 0, |
| }; |
| |
| static const struct usb_device_id cxacru_usb_ids[] = { |
| { /* V = Conexant P = ADSL modem (Euphrates project) */ |
| USB_DEVICE(0x0572, 0xcafe), .driver_info = (unsigned long) &cxacru_cafe |
| }, |
| { /* V = Conexant P = ADSL modem (Hasbani project) */ |
| USB_DEVICE(0x0572, 0xcb00), .driver_info = (unsigned long) &cxacru_cb00 |
| }, |
| { /* V = Conexant P = ADSL modem */ |
| USB_DEVICE(0x0572, 0xcb01), .driver_info = (unsigned long) &cxacru_cb00 |
| }, |
| { /* V = Conexant P = ADSL modem */ |
| USB_DEVICE(0x0572, 0xcb06), .driver_info = (unsigned long) &cxacru_cb00 |
| }, |
| { /* V = Olitec P = ADSL modem version 2 */ |
| USB_DEVICE(0x08e3, 0x0100), .driver_info = (unsigned long) &cxacru_cafe |
| }, |
| { /* V = Olitec P = ADSL modem version 3 */ |
| USB_DEVICE(0x08e3, 0x0102), .driver_info = (unsigned long) &cxacru_cb00 |
| }, |
| { /* V = Trust/Amigo Technology Co. P = AMX-CA86U */ |
| USB_DEVICE(0x0eb0, 0x3457), .driver_info = (unsigned long) &cxacru_cafe |
| }, |
| { /* V = Zoom P = 5510 */ |
| USB_DEVICE(0x1803, 0x5510), .driver_info = (unsigned long) &cxacru_cb00 |
| }, |
| { /* V = Draytek P = Vigor 318 */ |
| USB_DEVICE(0x0675, 0x0200), .driver_info = (unsigned long) &cxacru_cb00 |
| }, |
| { /* V = Zyxel P = 630-C1 aka OMNI ADSL USB (Annex A) */ |
| USB_DEVICE(0x0586, 0x330a), .driver_info = (unsigned long) &cxacru_cb00 |
| }, |
| { /* V = Zyxel P = 630-C3 aka OMNI ADSL USB (Annex B) */ |
| USB_DEVICE(0x0586, 0x330b), .driver_info = (unsigned long) &cxacru_cb00 |
| }, |
| { /* V = Aethra P = Starmodem UM1020 */ |
| USB_DEVICE(0x0659, 0x0020), .driver_info = (unsigned long) &cxacru_cb00 |
| }, |
| { /* V = Aztech Systems P = ? AKA Pirelli AUA-010 */ |
| USB_DEVICE(0x0509, 0x0812), .driver_info = (unsigned long) &cxacru_cb00 |
| }, |
| { /* V = Netopia P = Cayman 3341(Annex A)/3351(Annex B) */ |
| USB_DEVICE(0x100d, 0xcb01), .driver_info = (unsigned long) &cxacru_cb00 |
| }, |
| { /* V = Netopia P = Cayman 3342(Annex A)/3352(Annex B) */ |
| USB_DEVICE(0x100d, 0x3342), .driver_info = (unsigned long) &cxacru_cb00 |
| }, |
| {} |
| }; |
| |
| MODULE_DEVICE_TABLE(usb, cxacru_usb_ids); |
| |
| static struct usbatm_driver cxacru_driver = { |
| .owner = THIS_MODULE, |
| .driver_name = cxacru_driver_name, |
| .bind = cxacru_bind, |
| .heavy_init = cxacru_heavy_init, |
| .unbind = cxacru_unbind, |
| .atm_start = cxacru_atm_start, |
| .in = CXACRU_EP_DATA, |
| .out = CXACRU_EP_DATA, |
| .rx_padding = 3, |
| .tx_padding = 11, |
| }; |
| |
| static int cxacru_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) |
| { |
| return usbatm_usb_probe(intf, id, &cxacru_driver); |
| } |
| |
| static struct usb_driver cxacru_usb_driver = { |
| .owner = THIS_MODULE, |
| .name = cxacru_driver_name, |
| .probe = cxacru_usb_probe, |
| .disconnect = usbatm_usb_disconnect, |
| .id_table = cxacru_usb_ids |
| }; |
| |
| static int __init cxacru_init(void) |
| { |
| return usb_register(&cxacru_usb_driver); |
| } |
| |
| static void __exit cxacru_cleanup(void) |
| { |
| usb_deregister(&cxacru_usb_driver); |
| } |
| |
| module_init(cxacru_init); |
| module_exit(cxacru_cleanup); |
| |
| MODULE_AUTHOR(DRIVER_AUTHOR); |
| MODULE_DESCRIPTION(DRIVER_DESC); |
| MODULE_LICENSE("GPL"); |
| MODULE_VERSION(DRIVER_VERSION); |