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path: root/drivers/media/usb/dvb-usb/gp8psk.c
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Diffstat (limited to 'drivers/media/usb/dvb-usb/gp8psk.c')
-rw-r--r--drivers/media/usb/dvb-usb/gp8psk.c400
1 files changed, 400 insertions, 0 deletions
diff --git a/drivers/media/usb/dvb-usb/gp8psk.c b/drivers/media/usb/dvb-usb/gp8psk.c
new file mode 100644
index 000000000..b2b27a86d
--- /dev/null
+++ b/drivers/media/usb/dvb-usb/gp8psk.c
@@ -0,0 +1,400 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* DVB USB compliant Linux driver for the
+ * - GENPIX 8pks/qpsk/DCII USB2.0 DVB-S module
+ *
+ * Copyright (C) 2006,2007 Alan Nisota (alannisota@gmail.com)
+ * Copyright (C) 2006,2007 Genpix Electronics (genpix@genpix-electronics.com)
+ *
+ * Thanks to GENPIX for the sample code used to implement this module.
+ *
+ * This module is based off the vp7045 and vp702x modules
+ *
+ * see Documentation/driver-api/media/drivers/dvb-usb.rst for more information
+ */
+#include "gp8psk.h"
+#include "gp8psk-fe.h"
+
+/* debug */
+static char bcm4500_firmware[] = "dvb-usb-gp8psk-02.fw";
+int dvb_usb_gp8psk_debug;
+module_param_named(debug,dvb_usb_gp8psk_debug, int, 0644);
+MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+struct gp8psk_state {
+ unsigned char data[80];
+};
+
+static int gp8psk_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value,
+ u16 index, u8 *b, int blen)
+{
+ struct gp8psk_state *st = d->priv;
+ int ret = 0,try = 0;
+
+ if (blen > sizeof(st->data))
+ return -EIO;
+
+ if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
+ return ret;
+
+ while (ret >= 0 && ret != blen && try < 3) {
+ ret = usb_control_msg(d->udev,
+ usb_rcvctrlpipe(d->udev,0),
+ req,
+ USB_TYPE_VENDOR | USB_DIR_IN,
+ value, index, st->data, blen,
+ 2000);
+ deb_info("reading number %d (ret: %d)\n",try,ret);
+ try++;
+ }
+
+ if (ret < 0 || ret != blen) {
+ warn("usb in %d operation failed.", req);
+ ret = -EIO;
+ } else {
+ ret = 0;
+ memcpy(b, st->data, blen);
+ }
+
+ deb_xfer("in: req. %x, val: %x, ind: %x, buffer: ",req,value,index);
+ debug_dump(b,blen,deb_xfer);
+
+ mutex_unlock(&d->usb_mutex);
+
+ return ret;
+}
+
+static int gp8psk_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value,
+ u16 index, u8 *b, int blen)
+{
+ struct gp8psk_state *st = d->priv;
+ int ret;
+
+ deb_xfer("out: req. %x, val: %x, ind: %x, buffer: ",req,value,index);
+ debug_dump(b,blen,deb_xfer);
+
+ if (blen > sizeof(st->data))
+ return -EIO;
+
+ if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
+ return ret;
+
+ memcpy(st->data, b, blen);
+ if (usb_control_msg(d->udev,
+ usb_sndctrlpipe(d->udev,0),
+ req,
+ USB_TYPE_VENDOR | USB_DIR_OUT,
+ value, index, st->data, blen,
+ 2000) != blen) {
+ warn("usb out operation failed.");
+ ret = -EIO;
+ } else
+ ret = 0;
+ mutex_unlock(&d->usb_mutex);
+
+ return ret;
+}
+
+
+static int gp8psk_get_fw_version(struct dvb_usb_device *d, u8 *fw_vers)
+{
+ return gp8psk_usb_in_op(d, GET_FW_VERS, 0, 0, fw_vers, 6);
+}
+
+static int gp8psk_get_fpga_version(struct dvb_usb_device *d, u8 *fpga_vers)
+{
+ return gp8psk_usb_in_op(d, GET_FPGA_VERS, 0, 0, fpga_vers, 1);
+}
+
+static void gp8psk_info(struct dvb_usb_device *d)
+{
+ u8 fpga_vers, fw_vers[6];
+
+ if (!gp8psk_get_fw_version(d, fw_vers))
+ info("FW Version = %i.%02i.%i (0x%x) Build %4i/%02i/%02i",
+ fw_vers[2], fw_vers[1], fw_vers[0], GP8PSK_FW_VERS(fw_vers),
+ 2000 + fw_vers[5], fw_vers[4], fw_vers[3]);
+ else
+ info("failed to get FW version");
+
+ if (!gp8psk_get_fpga_version(d, &fpga_vers))
+ info("FPGA Version = %i", fpga_vers);
+ else
+ info("failed to get FPGA version");
+}
+
+static int gp8psk_load_bcm4500fw(struct dvb_usb_device *d)
+{
+ int ret;
+ const struct firmware *fw = NULL;
+ const u8 *ptr;
+ u8 *buf;
+ if ((ret = request_firmware(&fw, bcm4500_firmware,
+ &d->udev->dev)) != 0) {
+ err("did not find the bcm4500 firmware file '%s' (status %d). You can use <kernel_dir>/scripts/get_dvb_firmware to get the firmware",
+ bcm4500_firmware,ret);
+ return ret;
+ }
+
+ ret = -EINVAL;
+
+ if (gp8psk_usb_out_op(d, LOAD_BCM4500,1,0,NULL, 0))
+ goto out_rel_fw;
+
+ info("downloading bcm4500 firmware from file '%s'",bcm4500_firmware);
+
+ ptr = fw->data;
+ buf = kmalloc(64, GFP_KERNEL);
+ if (!buf) {
+ ret = -ENOMEM;
+ goto out_rel_fw;
+ }
+
+ while (ptr[0] != 0xff) {
+ u16 buflen = ptr[0] + 4;
+ if (ptr + buflen >= fw->data + fw->size) {
+ err("failed to load bcm4500 firmware.");
+ goto out_free;
+ }
+ if (buflen > 64) {
+ err("firmware chunk size bigger than 64 bytes.");
+ goto out_free;
+ }
+
+ memcpy(buf, ptr, buflen);
+ if (dvb_usb_generic_write(d, buf, buflen)) {
+ err("failed to load bcm4500 firmware.");
+ goto out_free;
+ }
+ ptr += buflen;
+ }
+
+ ret = 0;
+
+out_free:
+ kfree(buf);
+out_rel_fw:
+ release_firmware(fw);
+
+ return ret;
+}
+
+static int gp8psk_power_ctrl(struct dvb_usb_device *d, int onoff)
+{
+ u8 status = 0, buf;
+ int gp_product_id = le16_to_cpu(d->udev->descriptor.idProduct);
+
+ if (onoff) {
+ gp8psk_usb_in_op(d, GET_8PSK_CONFIG,0,0,&status,1);
+ if (! (status & bm8pskStarted)) { /* started */
+ if(gp_product_id == USB_PID_GENPIX_SKYWALKER_CW3K)
+ gp8psk_usb_out_op(d, CW3K_INIT, 1, 0, NULL, 0);
+ if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1))
+ return -EINVAL;
+ gp8psk_info(d);
+ }
+
+ if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
+ if (! (status & bm8pskFW_Loaded)) /* BCM4500 firmware loaded */
+ if(gp8psk_load_bcm4500fw(d))
+ return -EINVAL;
+
+ if (! (status & bmIntersilOn)) /* LNB Power */
+ if (gp8psk_usb_in_op(d, START_INTERSIL, 1, 0,
+ &buf, 1))
+ return -EINVAL;
+
+ /* Set DVB mode to 1 */
+ if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
+ if (gp8psk_usb_out_op(d, SET_DVB_MODE, 1, 0, NULL, 0))
+ return -EINVAL;
+ /* Abort possible TS (if previous tune crashed) */
+ if (gp8psk_usb_out_op(d, ARM_TRANSFER, 0, 0, NULL, 0))
+ return -EINVAL;
+ } else {
+ /* Turn off LNB power */
+ if (gp8psk_usb_in_op(d, START_INTERSIL, 0, 0, &buf, 1))
+ return -EINVAL;
+ /* Turn off 8psk power */
+ if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1))
+ return -EINVAL;
+ if(gp_product_id == USB_PID_GENPIX_SKYWALKER_CW3K)
+ gp8psk_usb_out_op(d, CW3K_INIT, 0, 0, NULL, 0);
+ }
+ return 0;
+}
+
+static int gp8psk_bcm4500_reload(struct dvb_usb_device *d)
+{
+ u8 buf;
+ int gp_product_id = le16_to_cpu(d->udev->descriptor.idProduct);
+
+ deb_xfer("reloading firmware\n");
+
+ /* Turn off 8psk power */
+ if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1))
+ return -EINVAL;
+ /* Turn On 8psk power */
+ if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1))
+ return -EINVAL;
+ /* load BCM4500 firmware */
+ if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
+ if (gp8psk_load_bcm4500fw(d))
+ return -EINVAL;
+ return 0;
+}
+
+static int gp8psk_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
+{
+ return gp8psk_usb_out_op(adap->dev, ARM_TRANSFER, onoff, 0 , NULL, 0);
+}
+
+/* Callbacks for gp8psk-fe.c */
+
+static int gp8psk_fe_in(void *priv, u8 req, u16 value,
+ u16 index, u8 *b, int blen)
+{
+ struct dvb_usb_device *d = priv;
+
+ return gp8psk_usb_in_op(d, req, value, index, b, blen);
+}
+
+static int gp8psk_fe_out(void *priv, u8 req, u16 value,
+ u16 index, u8 *b, int blen)
+{
+ struct dvb_usb_device *d = priv;
+
+ return gp8psk_usb_out_op(d, req, value, index, b, blen);
+}
+
+static int gp8psk_fe_reload(void *priv)
+{
+ struct dvb_usb_device *d = priv;
+
+ return gp8psk_bcm4500_reload(d);
+}
+
+static const struct gp8psk_fe_ops gp8psk_fe_ops = {
+ .in = gp8psk_fe_in,
+ .out = gp8psk_fe_out,
+ .reload = gp8psk_fe_reload,
+};
+
+static int gp8psk_frontend_attach(struct dvb_usb_adapter *adap)
+{
+ struct dvb_usb_device *d = adap->dev;
+ int id = le16_to_cpu(d->udev->descriptor.idProduct);
+ int is_rev1;
+
+ is_rev1 = (id == USB_PID_GENPIX_8PSK_REV_1_WARM) ? true : false;
+
+ adap->fe_adap[0].fe = dvb_attach(gp8psk_fe_attach,
+ &gp8psk_fe_ops, d, is_rev1);
+ return 0;
+}
+
+static struct dvb_usb_device_properties gp8psk_properties;
+
+static int gp8psk_usb_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ int ret;
+ struct usb_device *udev = interface_to_usbdev(intf);
+ ret = dvb_usb_device_init(intf, &gp8psk_properties,
+ THIS_MODULE, NULL, adapter_nr);
+ if (ret == 0) {
+ info("found Genpix USB device pID = %x (hex)",
+ le16_to_cpu(udev->descriptor.idProduct));
+ }
+ return ret;
+}
+
+enum {
+ GENPIX_8PSK_REV_1_COLD,
+ GENPIX_8PSK_REV_1_WARM,
+ GENPIX_8PSK_REV_2,
+ GENPIX_SKYWALKER_1,
+ GENPIX_SKYWALKER_2,
+ GENPIX_SKYWALKER_CW3K,
+};
+
+static struct usb_device_id gp8psk_usb_table[] = {
+ DVB_USB_DEV(GENPIX, GENPIX_8PSK_REV_1_COLD),
+ DVB_USB_DEV(GENPIX, GENPIX_8PSK_REV_1_WARM),
+ DVB_USB_DEV(GENPIX, GENPIX_8PSK_REV_2),
+ DVB_USB_DEV(GENPIX, GENPIX_SKYWALKER_1),
+ DVB_USB_DEV(GENPIX, GENPIX_SKYWALKER_2),
+ DVB_USB_DEV(GENPIX, GENPIX_SKYWALKER_CW3K),
+ { }
+};
+
+MODULE_DEVICE_TABLE(usb, gp8psk_usb_table);
+
+static struct dvb_usb_device_properties gp8psk_properties = {
+ .usb_ctrl = CYPRESS_FX2,
+ .firmware = "dvb-usb-gp8psk-01.fw",
+
+ .size_of_priv = sizeof(struct gp8psk_state),
+
+ .num_adapters = 1,
+ .adapter = {
+ {
+ .num_frontends = 1,
+ .fe = {{
+ .streaming_ctrl = gp8psk_streaming_ctrl,
+ .frontend_attach = gp8psk_frontend_attach,
+ /* parameter for the MPEG2-data transfer */
+ .stream = {
+ .type = USB_BULK,
+ .count = 7,
+ .endpoint = 0x82,
+ .u = {
+ .bulk = {
+ .buffersize = 8192,
+ }
+ }
+ },
+ }},
+ }
+ },
+ .power_ctrl = gp8psk_power_ctrl,
+
+ .generic_bulk_ctrl_endpoint = 0x01,
+
+ .num_device_descs = 4,
+ .devices = {
+ { .name = "Genpix 8PSK-to-USB2 Rev.1 DVB-S receiver",
+ .cold_ids = { &gp8psk_usb_table[GENPIX_8PSK_REV_1_COLD], NULL },
+ .warm_ids = { &gp8psk_usb_table[GENPIX_8PSK_REV_1_WARM], NULL },
+ },
+ { .name = "Genpix 8PSK-to-USB2 Rev.2 DVB-S receiver",
+ .cold_ids = { NULL },
+ .warm_ids = { &gp8psk_usb_table[GENPIX_8PSK_REV_2], NULL },
+ },
+ { .name = "Genpix SkyWalker-1 DVB-S receiver",
+ .cold_ids = { NULL },
+ .warm_ids = { &gp8psk_usb_table[GENPIX_SKYWALKER_1], NULL },
+ },
+ { .name = "Genpix SkyWalker-2 DVB-S receiver",
+ .cold_ids = { NULL },
+ .warm_ids = { &gp8psk_usb_table[GENPIX_SKYWALKER_2], NULL },
+ },
+ { NULL },
+ }
+};
+
+/* usb specific object needed to register this driver with the usb subsystem */
+static struct usb_driver gp8psk_usb_driver = {
+ .name = "dvb_usb_gp8psk",
+ .probe = gp8psk_usb_probe,
+ .disconnect = dvb_usb_device_exit,
+ .id_table = gp8psk_usb_table,
+};
+
+module_usb_driver(gp8psk_usb_driver);
+
+MODULE_AUTHOR("Alan Nisota <alannisota@gamil.com>");
+MODULE_DESCRIPTION("Driver for Genpix DVB-S");
+MODULE_VERSION("1.1");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-16 09:34:41 +0000