+++ /dev/null
-/* 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;
- /* name of the usb controller */
- const char *name;
- /* needs to be restarted, when the firmware has been downloaded. */
- u16 cpu_cs_register;
-};
-
-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 usbv2_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;
- ret = usb_cypress_writemem(udev, cypress[type].cpu_cs_register,
- &reset, 1);
- if (ret != 1)
- err("could not stop the USB controller CPU.");
-
- while ((ret = dvb_usbv2_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(usbv2_cypress_load_firmware);
-
-int dvb_usb_download_firmware(struct dvb_usb_device *d)
-{
- int ret;
- const struct firmware *fw = NULL;
- const char *name;
-
- /* resolve firmware name */
- name = d->props.firmware;
- if (d->props.get_firmware_name) {
- ret = d->props.get_firmware_name(d, &name);
- if (ret < 0)
- return ret;
- }
-
- ret = request_firmware(&fw, name, &d->udev->dev);
- if (ret != 0) {
- err("did not find the firmware file. (%s) " \
- "Please see linux/Documentation/dvb/ for more" \
- " details on firmware-problems. (%d)",
- name, ret);
- return ret;
- }
-
- info("downloading firmware from file '%s'", name);
-
- switch (d->props.usb_ctrl) {
- case CYPRESS_AN2135:
- case CYPRESS_AN2235:
- case CYPRESS_FX2:
- ret = usbv2_cypress_load_firmware(d->udev, fw,
- d->props.usb_ctrl);
- break;
- case DEVICE_SPECIFIC:
- if (d->props.download_firmware)
- ret = d->props.download_firmware(d, 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_usbv2_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_usbv2_get_hexline);
MODULE_PARM_DESC(force_pid_filter_usage, "force all dvb-usb-devices to use a" \
" PID filter, if any (default: 0).");
+int dvb_usb_download_firmware(struct dvb_usb_device *d)
+{
+ int ret;
+ const struct firmware *fw = NULL;
+ const char *name;
+
+ /* resolve firmware name */
+ name = d->props.firmware;
+ if (d->props.get_firmware_name) {
+ ret = d->props.get_firmware_name(d, &name);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (!d->props.download_firmware) {
+ ret = -EINVAL;
+ goto err;
+ }
+
+ ret = request_firmware(&fw, name, &d->udev->dev);
+ if (ret < 0) {
+ err("did not find the firmware file. (%s) " \
+ "Please see linux/Documentation/dvb/ for more" \
+ " details on firmware-problems. (%d)", name, ret);
+ goto err;
+ }
+
+ info("downloading firmware from file '%s'", name);
+
+ ret = d->props.download_firmware(d, fw);
+
+ release_firmware(fw);
+
+ if (ret < 0)
+ goto err;
+
+ return 0;
+err:
+ pr_debug("%s: failed=%d\n", __func__, ret);
+ return ret;
+}
+
static int dvb_usb_adapter_init(struct dvb_usb_device *d)
{
struct dvb_usb_adapter *adap;
projects / firefly-linux-kernel-4.4.55.git / commitdiff