diff options
Diffstat (limited to 'drivers/media/dvb/dvb-usb/dvb-usb-firmware.c')
-rw-r--r-- | drivers/media/dvb/dvb-usb/dvb-usb-firmware.c | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-firmware.c b/drivers/media/dvb/dvb-usb/dvb-usb-firmware.c deleted file mode 100644 index 733a7ff7b20..00000000000 --- a/drivers/media/dvb/dvb-usb/dvb-usb-firmware.c +++ /dev/null @@ -1,146 +0,0 @@ -/* dvb-usb-firmware.c is part of the DVB USB library. - * - * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de) - * see dvb-usb-init.c for copyright information. - * - * This file contains functions for downloading the firmware to Cypress FX 1 and 2 based devices. - * - * FIXME: This part does actually not belong to dvb-usb, but to the usb-subsystem. - */ -#include "dvb-usb-common.h" - -#include <linux/usb.h> - -struct usb_cypress_controller { - int id; - const char *name; /* name of the usb controller */ - u16 cpu_cs_register; /* needs to be restarted, when the firmware has been downloaded. */ -}; - -static struct usb_cypress_controller cypress[] = { - { .id = DEVICE_SPECIFIC, .name = "Device specific", .cpu_cs_register = 0 }, - { .id = CYPRESS_AN2135, .name = "Cypress AN2135", .cpu_cs_register = 0x7f92 }, - { .id = CYPRESS_AN2235, .name = "Cypress AN2235", .cpu_cs_register = 0x7f92 }, - { .id = CYPRESS_FX2, .name = "Cypress FX2", .cpu_cs_register = 0xe600 }, -}; - -/* - * load a firmware packet to the device - */ -static int usb_cypress_writemem(struct usb_device *udev,u16 addr,u8 *data, u8 len) -{ - return usb_control_msg(udev, usb_sndctrlpipe(udev,0), - 0xa0, USB_TYPE_VENDOR, addr, 0x00, data, len, 5000); -} - -int usb_cypress_load_firmware(struct usb_device *udev, const struct firmware *fw, int type) -{ - struct hexline hx; - u8 reset; - int ret,pos=0; - - /* stop the CPU */ - reset = 1; - if ((ret = usb_cypress_writemem(udev,cypress[type].cpu_cs_register,&reset,1)) != 1) - err("could not stop the USB controller CPU."); - - while ((ret = dvb_usb_get_hexline(fw,&hx,&pos)) > 0) { - deb_fw("writing to address 0x%04x (buffer: 0x%02x %02x)\n",hx.addr,hx.len,hx.chk); - ret = usb_cypress_writemem(udev,hx.addr,hx.data,hx.len); - - if (ret != hx.len) { - err("error while transferring firmware " - "(transferred size: %d, block size: %d)", - ret,hx.len); - ret = -EINVAL; - break; - } - } - if (ret < 0) { - err("firmware download failed at %d with %d",pos,ret); - return ret; - } - - if (ret == 0) { - /* restart the CPU */ - reset = 0; - if (ret || usb_cypress_writemem(udev,cypress[type].cpu_cs_register,&reset,1) != 1) { - err("could not restart the USB controller CPU."); - ret = -EINVAL; - } - } else - ret = -EIO; - - return ret; -} -EXPORT_SYMBOL(usb_cypress_load_firmware); - -int dvb_usb_download_firmware(struct usb_device *udev, struct dvb_usb_device_properties *props) -{ - int ret; - const struct firmware *fw = NULL; - - if ((ret = request_firmware(&fw, props->firmware, &udev->dev)) != 0) { - err("did not find the firmware file. (%s) " - "Please see linux/Documentation/dvb/ for more details on firmware-problems. (%d)", - props->firmware,ret); - return ret; - } - - info("downloading firmware from file '%s'",props->firmware); - - switch (props->usb_ctrl) { - case CYPRESS_AN2135: - case CYPRESS_AN2235: - case CYPRESS_FX2: - ret = usb_cypress_load_firmware(udev, fw, props->usb_ctrl); - break; - case DEVICE_SPECIFIC: - if (props->download_firmware) - ret = props->download_firmware(udev,fw); - else { - err("BUG: driver didn't specified a download_firmware-callback, although it claims to have a DEVICE_SPECIFIC one."); - ret = -EINVAL; - } - break; - default: - ret = -EINVAL; - break; - } - - release_firmware(fw); - return ret; -} - -int dvb_usb_get_hexline(const struct firmware *fw, struct hexline *hx, - int *pos) -{ - u8 *b = (u8 *) &fw->data[*pos]; - int data_offs = 4; - if (*pos >= fw->size) - return 0; - - memset(hx,0,sizeof(struct hexline)); - - hx->len = b[0]; - - if ((*pos + hx->len + 4) >= fw->size) - return -EINVAL; - - hx->addr = b[1] | (b[2] << 8); - hx->type = b[3]; - - if (hx->type == 0x04) { - /* b[4] and b[5] are the Extended linear address record data field */ - hx->addr |= (b[4] << 24) | (b[5] << 16); -/* hx->len -= 2; - data_offs += 2; */ - } - memcpy(hx->data,&b[data_offs],hx->len); - hx->chk = b[hx->len + data_offs]; - - *pos += hx->len + 5; - - return *pos; -} -EXPORT_SYMBOL(dvb_usb_get_hexline); |