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https://github.com/FEX-Emu/linux.git
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Staging: comedi: convert usbdux* to use firmware_request
The firmware is now in the linux-firmware tree, so we can move these two drivers to use the proper request_firmware infrastructure. From: Bernd Porr <BerndPorr@f2s.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Bernd Porr
Greg Kroah-Hartman
parent
ff89514f8d
commit
81874ff789
@ -809,32 +809,56 @@ static int usbduxsub_upload(struct usbduxsub *usbduxsub,
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return 0;
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}
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static int firmwareUpload(struct usbduxsub *usbduxsub, uint8_t *firmwareBinary,
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#define FIRMWARE_MAX_LEN 0x2000
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static int firmwareUpload(struct usbduxsub *usbduxsub,
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const u8 *firmwareBinary,
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int sizeFirmware)
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{
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int ret;
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uint8_t *fwBuf;
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if (!firmwareBinary)
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return 0;
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if (sizeFirmware>FIRMWARE_MAX_LEN) {
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dev_err(&usbduxsub->interface->dev,
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"comedi_: usbdux firmware binary it too large for FX2.\n");
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return -ENOMEM;
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}
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/* we generate a local buffer for the firmware */
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fwBuf = kzalloc(sizeFirmware, GFP_KERNEL);
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if (!fwBuf) {
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dev_err(&usbduxsub->interface->dev,
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"comedi_: mem alloc for firmware failed\n");
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return -ENOMEM;
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}
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memcpy(fwBuf,firmwareBinary,sizeFirmware);
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ret = usbduxsub_stop(usbduxsub);
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if (ret < 0) {
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dev_err(&usbduxsub->interface->dev,
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"comedi_: can not stop firmware\n");
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kfree(fwBuf);
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return ret;
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}
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ret = usbduxsub_upload(usbduxsub, firmwareBinary, 0, sizeFirmware);
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ret = usbduxsub_upload(usbduxsub, fwBuf, 0, sizeFirmware);
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if (ret < 0) {
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dev_err(&usbduxsub->interface->dev,
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"comedi_: firmware upload failed\n");
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kfree(fwBuf);
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return ret;
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}
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ret = usbduxsub_start(usbduxsub);
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if (ret < 0) {
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dev_err(&usbduxsub->interface->dev,
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"comedi_: can not start firmware\n");
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kfree(fwBuf);
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return ret;
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}
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kfree(fwBuf);
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return 0;
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}
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@ -2260,134 +2284,6 @@ static void tidy_up(struct usbduxsub *usbduxsub_tmp)
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usbduxsub_tmp->pwm_cmd_running = 0;
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}
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static unsigned hex2unsigned(char *h)
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{
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unsigned hi, lo;
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if (h[0] > '9')
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hi = h[0] - 'A' + 0x0a;
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else
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hi = h[0] - '0';
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if (h[1] > '9')
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lo = h[1] - 'A' + 0x0a;
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else
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lo = h[1] - '0';
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return hi * 0x10 + lo;
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}
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/* for FX2 */
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#define FIRMWARE_MAX_LEN 0x2000
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/* taken from David Brownell's fxload and adjusted for this driver */
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static int read_firmware(struct usbduxsub *usbduxsub, const void *firmwarePtr,
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long size)
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{
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struct device *dev = &usbduxsub->interface->dev;
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int i = 0;
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unsigned char *fp = (char *)firmwarePtr;
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unsigned char *firmwareBinary;
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int res = 0;
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int maxAddr = 0;
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firmwareBinary = kzalloc(FIRMWARE_MAX_LEN, GFP_KERNEL);
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if (!firmwareBinary) {
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dev_err(dev, "comedi_: mem alloc for firmware failed\n");
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return -ENOMEM;
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}
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for (;;) {
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char buf[256], *cp;
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char type;
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int len;
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int idx, off;
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int j = 0;
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/* get one line */
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while ((i < size) && (fp[i] != 13) && (fp[i] != 10)) {
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buf[j] = fp[i];
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i++;
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j++;
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if (j >= sizeof(buf)) {
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dev_err(dev, "comedi_: bogus firmware file!\n");
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kfree(firmwareBinary);
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return -1;
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}
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}
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/* get rid of LF/CR/... */
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while ((i < size) && ((fp[i] == 13) || (fp[i] == 10)
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|| (fp[i] == 0))) {
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i++;
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}
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buf[j] = 0;
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/* dev_dbg(dev, "comedi_: buf=%s\n", buf); */
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/*
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* EXTENSION:
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* "# comment-till-end-of-line", for copyrights etc
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*/
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if (buf[0] == '#')
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continue;
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if (buf[0] != ':') {
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dev_err(dev, "comedi_: upload: not an ihex record: %s",
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buf);
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kfree(firmwareBinary);
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return -EFAULT;
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}
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/* Read the length field (up to 16 bytes) */
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len = hex2unsigned(buf + 1);
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/* Read the target offset */
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off = (hex2unsigned(buf + 3) * 0x0100) + hex2unsigned(buf + 5);
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if ((off + len) > maxAddr)
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maxAddr = off + len;
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if (maxAddr >= FIRMWARE_MAX_LEN) {
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dev_err(dev, "comedi_: firmware upload goes "
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"beyond FX2 RAM boundaries.\n");
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kfree(firmwareBinary);
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return -EFAULT;
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}
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/* dev_dbg(dev, "comedi_: off=%x, len=%x:\n", off, len); */
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/* Read the record type */
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type = hex2unsigned(buf + 7);
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/* If this is an EOF record, then make it so. */
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if (type == 1)
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break;
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if (type != 0) {
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dev_err(dev, "comedi_: unsupported record type: %u\n",
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type);
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kfree(firmwareBinary);
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return -EFAULT;
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}
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for (idx = 0, cp = buf + 9; idx < len; idx += 1, cp += 2) {
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firmwareBinary[idx + off] = hex2unsigned(cp);
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/*printk("%02x ",firmwareBinary[idx+off]); */
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}
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/*printk("\n"); */
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if (i >= size) {
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dev_err(dev, "comedi_: unexpected end of hex file\n");
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break;
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}
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}
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res = firmwareUpload(usbduxsub, firmwareBinary, maxAddr + 1);
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kfree(firmwareBinary);
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return res;
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}
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static void usbdux_firmware_request_complete_handler(const struct firmware *fw,
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void *context)
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{
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@ -2405,7 +2301,7 @@ static void usbdux_firmware_request_complete_handler(const struct firmware *fw,
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* we need to upload the firmware here because fw will be
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* freed once we've left this function
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*/
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ret = read_firmware(usbduxsub_tmp, fw->data, fw->size);
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ret = firmwareUpload(usbduxsub_tmp, fw->data, fw->size);
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if (ret) {
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dev_err(&usbdev->dev,
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@ -2662,11 +2558,13 @@ static int usbduxsub_probe(struct usb_interface *uinterf,
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ret = request_firmware_nowait(THIS_MODULE,
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FW_ACTION_HOTPLUG,
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"usbdux_firmware.hex",
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"usbdux_firmware.bin",
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&udev->dev,
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usbduxsub + index,
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usbdux_firmware_request_complete_handler);
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if (ret) {
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dev_err(dev, "Could not load firmware (err=%d)\n", ret);
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return ret;
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@ -2739,8 +2637,8 @@ static int usbdux_attach(struct comedi_device *dev, struct comedi_devconfig *it)
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/* trying to upload the firmware into the chip */
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if (comedi_aux_data(it->options, 0) &&
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it->options[COMEDI_DEVCONF_AUX_DATA_LENGTH]) {
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read_firmware(udev, comedi_aux_data(it->options, 0),
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it->options[COMEDI_DEVCONF_AUX_DATA_LENGTH]);
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firmwareUpload(udev, comedi_aux_data(it->options, 0),
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it->options[COMEDI_DEVCONF_AUX_DATA_LENGTH]);
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}
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dev->board_name = BOARDNAME;
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@ -524,33 +524,6 @@ static int usbduxfastsub_upload(struct usbduxfastsub_s *udfs,
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return 0;
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}
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int firmwareUpload(struct usbduxfastsub_s *udfs, unsigned char *firmwareBinary,
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int sizeFirmware)
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{
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int ret;
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if (!firmwareBinary)
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return 0;
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ret = usbduxfastsub_stop(udfs);
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if (ret < 0) {
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printk(KERN_ERR "comedi_: usbduxfast: can not stop firmware\n");
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return ret;
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}
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ret = usbduxfastsub_upload(udfs, firmwareBinary, 0, sizeFirmware);
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if (ret < 0) {
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printk(KERN_ERR "comedi_: usbduxfast: firmware upload failed\n");
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return ret;
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}
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ret = usbduxfastsub_start(udfs);
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if (ret < 0) {
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printk(KERN_ERR "comedi_: usbduxfast: can not start firmware\n");
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return ret;
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}
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return 0;
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}
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int usbduxfastsub_submit_InURBs(struct usbduxfastsub_s *udfs)
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{
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int ret;
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@ -1365,136 +1338,61 @@ static int usbduxfast_ai_insn_read(struct comedi_device *dev,
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return i;
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}
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static unsigned hex2unsigned(char *h)
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{
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unsigned hi, lo;
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if (h[0] > '9')
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hi = h[0] - 'A' + 0x0a;
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else
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hi = h[0] - '0';
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if (h[1] > '9')
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lo = h[1] - 'A' + 0x0a;
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else
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lo = h[1] - '0';
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return hi * 0x10 + lo;
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}
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/* for FX2 */
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#define FIRMWARE_MAX_LEN 0x2000
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/*
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* taken from David Brownell's fxload and adjusted for this driver
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*/
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static int read_firmware(struct usbduxfastsub_s *udfs, const void *firmwarePtr,
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long size)
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static int firmwareUpload(struct usbduxfastsub_s *usbduxfastsub,
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const u8 *firmwareBinary,
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int sizeFirmware)
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{
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int i = 0;
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unsigned char *fp = (char *)firmwarePtr;
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unsigned char *firmwareBinary;
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int res = 0;
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int maxAddr = 0;
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int ret;
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uint8_t *fwBuf;
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firmwareBinary = kmalloc(FIRMWARE_MAX_LEN, GFP_KERNEL);
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if (!firmwareBinary) {
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printk(KERN_ERR "comedi_: usbduxfast: mem alloc for firmware "
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" failed\n");
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if (!firmwareBinary)
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return 0;
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if (sizeFirmware>FIRMWARE_MAX_LEN) {
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dev_err(&usbduxfastsub->interface->dev,
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"comedi_: usbduxfast firmware binary it too large for FX2.\n");
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return -ENOMEM;
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}
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for (;;) {
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char buf[256], *cp;
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char type;
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int len;
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int idx, off;
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int j = 0;
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/* get one line */
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while ((i < size) && (fp[i] != 13) && (fp[i] != 10)) {
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buf[j] = fp[i];
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i++;
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j++;
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if (j >= sizeof(buf)) {
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printk(KERN_ERR "comedi_: usbduxfast: bogus "
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"firmware file!\n");
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kfree(firmwareBinary);
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return -1;
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}
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}
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/* get rid of LF/CR/... */
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while ((i < size) && ((fp[i] == 13) || (fp[i] == 10)
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|| (fp[i] == 0)))
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i++;
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buf[j] = 0;
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/* printk("comedi_: buf=%s\n",buf); */
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/*
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* EXTENSION: "# comment-till-end-of-line",
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* for copyrights etc
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*/
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if (buf[0] == '#')
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continue;
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if (buf[0] != ':') {
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printk(KERN_ERR "comedi_: usbduxfast: upload: not an "
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"ihex record: %s", buf);
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kfree(firmwareBinary);
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return -EFAULT;
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}
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/* Read the length field (up to 16 bytes) */
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len = hex2unsigned(buf + 1);
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/* Read the target offset */
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off = (hex2unsigned(buf + 3) * 0x0100) + hex2unsigned(buf + 5);
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if ((off + len) > maxAddr)
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maxAddr = off + len;
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if (maxAddr >= FIRMWARE_MAX_LEN) {
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printk(KERN_ERR "comedi_: usbduxfast: firmware upload "
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"goes beyond FX2 RAM boundaries.");
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kfree(firmwareBinary);
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return -EFAULT;
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}
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/* printk("comedi_: usbduxfast: off=%x, len=%x:",off,len); */
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/* Read the record type */
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type = hex2unsigned(buf + 7);
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/* If this is an EOF record, then make it so. */
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if (type == 1)
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break;
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if (type != 0) {
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printk(KERN_ERR "comedi_: usbduxfast: unsupported "
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"record type: %u\n", type);
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kfree(firmwareBinary);
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return -EFAULT;
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}
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for (idx = 0, cp = buf + 9; idx < len; idx += 1, cp += 2) {
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firmwareBinary[idx + off] = hex2unsigned(cp);
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/* printk("%02x ",firmwareBinary[idx+off]); */
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}
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/* printk("\n"); */
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if (i >= size) {
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printk(KERN_ERR "comedi_: usbduxfast: unexpected end "
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"of hex file\n");
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break;
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}
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/* we generate a local buffer for the firmware */
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fwBuf = kzalloc(sizeFirmware, GFP_KERNEL);
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if (!fwBuf) {
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dev_err(&usbduxfastsub->interface->dev,
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"comedi_: mem alloc for firmware failed\n");
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return -ENOMEM;
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}
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res = firmwareUpload(udfs, firmwareBinary, maxAddr + 1);
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kfree(firmwareBinary);
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return res;
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memcpy(fwBuf,firmwareBinary,sizeFirmware);
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ret = usbduxfastsub_stop(usbduxfastsub);
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if (ret < 0) {
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dev_err(&usbduxfastsub->interface->dev,
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"comedi_: can not stop firmware\n");
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kfree(fwBuf);
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return ret;
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}
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ret = usbduxfastsub_upload(usbduxfastsub, fwBuf, 0, sizeFirmware);
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if (ret < 0) {
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dev_err(&usbduxfastsub->interface->dev,
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"comedi_: firmware upload failed\n");
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kfree(fwBuf);
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return ret;
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}
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ret = usbduxfastsub_start(usbduxfastsub);
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if (ret < 0) {
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dev_err(&usbduxfastsub->interface->dev,
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"comedi_: can not start firmware\n");
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kfree(fwBuf);
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return ret;
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}
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kfree(fwBuf);
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return 0;
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}
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static void tidy_up(struct usbduxfastsub_s *udfs)
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{
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#ifdef CONFIG_COMEDI_DEBUG
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@ -1544,7 +1442,7 @@ static void usbduxfast_firmware_request_complete_handler(const struct firmware *
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* we need to upload the firmware here because fw will be
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* freed once we've left this function
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*/
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ret = read_firmware(usbduxfastsub_tmp, fw->data, fw->size);
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ret = firmwareUpload(usbduxfastsub_tmp, fw->data, fw->size);
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if (ret) {
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dev_err(&usbdev->dev,
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@ -1666,7 +1564,7 @@ static int usbduxfastsub_probe(struct usb_interface *uinterf,
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ret = request_firmware_nowait(THIS_MODULE,
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FW_ACTION_HOTPLUG,
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"usbduxfast_firmware.hex",
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"usbduxfast_firmware.bin",
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&udev->dev,
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usbduxfastsub + index,
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usbduxfast_firmware_request_complete_handler);
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@ -1751,9 +1649,9 @@ static int usbduxfast_attach(struct comedi_device *dev, struct comedi_devconfig
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/* trying to upload the firmware into the chip */
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if (comedi_aux_data(it->options, 0) &&
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it->options[COMEDI_DEVCONF_AUX_DATA_LENGTH]) {
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read_firmware(&usbduxfastsub[index],
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comedi_aux_data(it->options, 0),
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it->options[COMEDI_DEVCONF_AUX_DATA_LENGTH]);
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firmwareUpload(&usbduxfastsub[index],
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comedi_aux_data(it->options, 0),
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it->options[COMEDI_DEVCONF_AUX_DATA_LENGTH]);
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}
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dev->board_name = BOARDNAME;
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