Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/media/dvb/dibusb/dvb-fe-dtt200u.c b/drivers/media/dvb/dibusb/dvb-fe-dtt200u.c
new file mode 100644
index 0000000..1872aa6
--- /dev/null
+++ b/drivers/media/dvb/dibusb/dvb-fe-dtt200u.c
@@ -0,0 +1,263 @@
+/*
+ * dvb-dtt200u-fe.c is a driver which implements the frontend-part of the
+ * Yakumo/Typhoon/Hama USB2.0 boxes. It is hard-wired to the dibusb-driver as
+ * it uses the usb-transfer functions directly (maybe creating a
+ * generic-dvb-usb-lib for all usb-drivers will be reduce some more code.)
+ *
+ * Copyright (C) 2005 Patrick Boettcher <patrick.boettcher@desy.de>
+ *
+ * see dvb-dibusb-core.c for copyright details.
+ */
+
+/* guessed protocol description (reverse engineered):
+ * read
+ * 00 - USB type 0x02 for usb2.0, 0x01 for usb1.1
+ * 81 - <TS_LOCK> <current frequency divided by 250000>
+ * 82 - crash - do not touch
+ * 83 - crash - do not touch
+ * 84 - remote control
+ * 85 - crash - do not touch (OK, stop testing here)
+ * 88 - locking 2 bytes (0x80 0x40 == no signal, 0x89 0x20 == nice signal)
+ * 89 - noise-to-signal
+ * 8a - unkown 1 byte - signal_strength
+ * 8c - ber ???
+ * 8d - ber
+ * 8e - unc
+ *
+ * write
+ * 02 - bandwidth
+ * 03 - frequency (divided by 250000)
+ * 04 - pid table (index pid(7:0) pid(12:8))
+ * 05 - reset the pid table
+ * 08 - demod transfer enabled or not (FX2 transfer is enabled by default)
+ */
+
+#include "dvb-dibusb.h"
+#include "dvb_frontend.h"
+
+struct dtt200u_fe_state {
+ struct usb_dibusb *dib;
+
+ struct dvb_frontend_parameters fep;
+ struct dvb_frontend frontend;
+};
+
+#define moan(which,what) info("unexpected value in '%s' for cmd '%02x' - please report to linux-dvb@linuxtv.org",which,what)
+
+static int dtt200u_fe_read_status(struct dvb_frontend* fe, fe_status_t *stat)
+{
+ struct dtt200u_fe_state *state = fe->demodulator_priv;
+ u8 bw[1] = { 0x81 };
+ u8 br[3] = { 0 };
+// u8 bdeb[5] = { 0 };
+
+ dibusb_readwrite_usb(state->dib,bw,1,br,3);
+ switch (br[0]) {
+ case 0x01:
+ *stat = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
+ break;
+ case 0x00:
+ *stat = 0;
+ break;
+ default:
+ moan("br[0]",0x81);
+ break;
+ }
+
+// bw[0] = 0x88;
+// dibusb_readwrite_usb(state->dib,bw,1,bdeb,5);
+
+// deb_info("%02x: %02x %02x %02x %02x %02x\n",bw[0],bdeb[0],bdeb[1],bdeb[2],bdeb[3],bdeb[4]);
+
+ return 0;
+}
+static int dtt200u_fe_read_ber(struct dvb_frontend* fe, u32 *ber)
+{
+ struct dtt200u_fe_state *state = fe->demodulator_priv;
+ u8 bw[1] = { 0x8d };
+ *ber = 0;
+ dibusb_readwrite_usb(state->dib,bw,1,(u8*) ber, 3);
+ return 0;
+}
+
+static int dtt200u_fe_read_unc_blocks(struct dvb_frontend* fe, u32 *unc)
+{
+ struct dtt200u_fe_state *state = fe->demodulator_priv;
+ u8 bw[1] = { 0x8c };
+ *unc = 0;
+ dibusb_readwrite_usb(state->dib,bw,1,(u8*) unc, 3);
+ return 0;
+}
+
+static int dtt200u_fe_read_signal_strength(struct dvb_frontend* fe, u16 *strength)
+{
+ struct dtt200u_fe_state *state = fe->demodulator_priv;
+ u8 bw[1] = { 0x8a };
+ u8 b;
+ dibusb_readwrite_usb(state->dib,bw,1,&b, 1);
+ *strength = (b << 8) | b;
+ return 0;
+}
+
+static int dtt200u_fe_read_snr(struct dvb_frontend* fe, u16 *snr)
+{
+ struct dtt200u_fe_state *state = fe->demodulator_priv;
+ u8 bw[1] = { 0x89 };
+ u8 br[1] = { 0 };
+ dibusb_readwrite_usb(state->dib,bw,1,br,1);
+ *snr = ((0xff - br[0]) << 8) | (0xff - br[0]);
+ return 0;
+}
+
+static int dtt200u_fe_init(struct dvb_frontend* fe)
+{
+ struct dtt200u_fe_state *state = fe->demodulator_priv;
+ u8 b[] = { 0x01 };
+ return dibusb_write_usb(state->dib,b,1);
+}
+
+static int dtt200u_fe_sleep(struct dvb_frontend* fe)
+{
+ return dtt200u_fe_init(fe);
+}
+
+static int dtt200u_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune)
+{
+ tune->min_delay_ms = 1500;
+ tune->step_size = 166667;
+ tune->max_drift = 166667 * 2;
+ return 0;
+}
+
+static int dtt200u_fe_set_frontend(struct dvb_frontend* fe,
+ struct dvb_frontend_parameters *fep)
+{
+ struct dtt200u_fe_state *state = fe->demodulator_priv;
+ u16 freq = fep->frequency / 250000;
+ u8 bw,bwbuf[2] = { 0x03, 0 }, freqbuf[3] = { 0x02, 0, 0 };
+
+ switch (fep->u.ofdm.bandwidth) {
+ case BANDWIDTH_8_MHZ: bw = 8; break;
+ case BANDWIDTH_7_MHZ: bw = 7; break;
+ case BANDWIDTH_6_MHZ: bw = 6; break;
+ case BANDWIDTH_AUTO: return -EOPNOTSUPP;
+ default:
+ return -EINVAL;
+ }
+ deb_info("set_frontend\n");
+
+ bwbuf[1] = bw;
+ dibusb_write_usb(state->dib,bwbuf,2);
+
+ freqbuf[1] = freq & 0xff;
+ freqbuf[2] = (freq >> 8) & 0xff;
+ dibusb_write_usb(state->dib,freqbuf,3);
+
+ memcpy(&state->fep,fep,sizeof(struct dvb_frontend_parameters));
+
+ return 0;
+}
+
+static int dtt200u_fe_get_frontend(struct dvb_frontend* fe,
+ struct dvb_frontend_parameters *fep)
+{
+ struct dtt200u_fe_state *state = fe->demodulator_priv;
+ memcpy(fep,&state->fep,sizeof(struct dvb_frontend_parameters));
+ return 0;
+}
+
+static void dtt200u_fe_release(struct dvb_frontend* fe)
+{
+ struct dtt200u_fe_state *state = (struct dtt200u_fe_state*) fe->demodulator_priv;
+ kfree(state);
+}
+
+static int dtt200u_pid_control(struct dvb_frontend *fe,int index, int pid,int onoff)
+{
+ struct dtt200u_fe_state *state = (struct dtt200u_fe_state*) fe->demodulator_priv;
+ u8 b_pid[4];
+ pid = onoff ? pid : 0;
+
+ b_pid[0] = 0x04;
+ b_pid[1] = index;
+ b_pid[2] = pid & 0xff;
+ b_pid[3] = (pid >> 8) & 0xff;
+
+ dibusb_write_usb(state->dib,b_pid,4);
+ return 0;
+}
+
+static int dtt200u_fifo_control(struct dvb_frontend *fe, int onoff)
+{
+ struct dtt200u_fe_state *state = (struct dtt200u_fe_state*) fe->demodulator_priv;
+ u8 b_streaming[2] = { 0x08, onoff };
+ u8 b_rst_pid[1] = { 0x05 };
+
+ dibusb_write_usb(state->dib,b_streaming,2);
+
+ if (!onoff)
+ dibusb_write_usb(state->dib,b_rst_pid,1);
+ return 0;
+}
+
+static struct dvb_frontend_ops dtt200u_fe_ops;
+
+struct dvb_frontend* dtt200u_fe_attach(struct usb_dibusb *dib, struct dib_fe_xfer_ops *xfer_ops)
+{
+ struct dtt200u_fe_state* state = NULL;
+
+ /* allocate memory for the internal state */
+ state = (struct dtt200u_fe_state*) kmalloc(sizeof(struct dtt200u_fe_state), GFP_KERNEL);
+ if (state == NULL)
+ goto error;
+ memset(state,0,sizeof(struct dtt200u_fe_state));
+
+ deb_info("attaching frontend dtt200u\n");
+
+ state->dib = dib;
+
+ state->frontend.ops = &dtt200u_fe_ops;
+ state->frontend.demodulator_priv = state;
+
+ xfer_ops->fifo_ctrl = dtt200u_fifo_control;
+ xfer_ops->pid_ctrl = dtt200u_pid_control;
+
+ goto success;
+error:
+ return NULL;
+success:
+ return &state->frontend;
+}
+
+static struct dvb_frontend_ops dtt200u_fe_ops = {
+ .info = {
+ .name = "DTT200U (Yakumo/Typhoon/Hama) DVB-T",
+ .type = FE_OFDM,
+ .frequency_min = 44250000,
+ .frequency_max = 867250000,
+ .frequency_stepsize = 250000,
+ .caps = FE_CAN_INVERSION_AUTO |
+ FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
+ FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
+ FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
+ FE_CAN_TRANSMISSION_MODE_AUTO |
+ FE_CAN_GUARD_INTERVAL_AUTO |
+ FE_CAN_RECOVER |
+ FE_CAN_HIERARCHY_AUTO,
+ },
+
+ .release = dtt200u_fe_release,
+
+ .init = dtt200u_fe_init,
+ .sleep = dtt200u_fe_sleep,
+
+ .set_frontend = dtt200u_fe_set_frontend,
+ .get_frontend = dtt200u_fe_get_frontend,
+ .get_tune_settings = dtt200u_fe_get_tune_settings,
+
+ .read_status = dtt200u_fe_read_status,
+ .read_ber = dtt200u_fe_read_ber,
+ .read_signal_strength = dtt200u_fe_read_signal_strength,
+ .read_snr = dtt200u_fe_read_snr,
+ .read_ucblocks = dtt200u_fe_read_unc_blocks,
+};