[media] move the dvb/frontends to drivers/media/dvb-frontends

Raise the DVB frontends one level up, as the intention is to remove
the drivers/media/dvb directory.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 0 insertions, 631 deletions

diff --git a/drivers/media/dvb/frontends/or51132.c b/drivers/media/dvb/frontends/or51132.c
deleted file mode 100644
index 5ef921823c15..000000000000
--- a/drivers/media/dvb/frontends/or51132.c
+++ /dev/null
@@ -1,631 +0,0 @@
-/*
- *    Support for OR51132 (pcHDTV HD-3000) - VSB/QAM
- *
- *
- *    Copyright (C) 2007 Trent Piepho <xyzzy@speakeasy.org>
- *
- *    Copyright (C) 2005 Kirk Lapray <kirk_lapray@bigfoot.com>
- *
- *    Based on code from Jack Kelliher (kelliher@xmission.com)
- *                           Copyright (C) 2002 & pcHDTV, inc.
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2 of the License, or
- *    (at your option) any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License
- *    along with this program; if not, write to the Free Software
- *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
-*/
-
-/*
- * This driver needs two external firmware files. Please copy
- * "dvb-fe-or51132-vsb.fw" and "dvb-fe-or51132-qam.fw" to
- * /usr/lib/hotplug/firmware/ or /lib/firmware/
- * (depending on configuration of firmware hotplug).
- */
-#define OR51132_VSB_FIRMWARE "dvb-fe-or51132-vsb.fw"
-#define OR51132_QAM_FIRMWARE "dvb-fe-or51132-qam.fw"
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <asm/byteorder.h>
-
-#include "dvb_math.h"
-#include "dvb_frontend.h"
-#include "or51132.h"
-
-static int debug;
-#define dprintk(args...) \
-	do { \
-		if (debug) printk(KERN_DEBUG "or51132: " args); \
-	} while (0)
-
-
-struct or51132_state
-{
-	struct i2c_adapter* i2c;
-
-	/* Configuration settings */
-	const struct or51132_config* config;
-
-	struct dvb_frontend frontend;
-
-	/* Demodulator private data */
-	fe_modulation_t current_modulation;
-	u32 snr; /* Result of last SNR calculation */
-
-	/* Tuner private data */
-	u32 current_frequency;
-};
-
-
-/* Write buffer to demod */
-static int or51132_writebuf(struct or51132_state *state, const u8 *buf, int len)
-{
-	int err;
-	struct i2c_msg msg = { .addr = state->config->demod_address,
-			       .flags = 0, .buf = (u8*)buf, .len = len };
-
-	/* msleep(20); */ /* doesn't appear to be necessary */
-	if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
-		printk(KERN_WARNING "or51132: I2C write (addr 0x%02x len %d) error: %d\n",
-		       msg.addr, msg.len, err);
-		return -EREMOTEIO;
-	}
-	return 0;
-}
-
-/* Write constant bytes, e.g. or51132_writebytes(state, 0x04, 0x42, 0x00);
-   Less code and more efficient that loading a buffer on the stack with
-   the bytes to send and then calling or51132_writebuf() on that. */
-#define or51132_writebytes(state, data...)  \
-	({ static const u8 _data[] = {data}; \
-	or51132_writebuf(state, _data, sizeof(_data)); })
-
-/* Read data from demod into buffer.  Returns 0 on success. */
-static int or51132_readbuf(struct or51132_state *state, u8 *buf, int len)
-{
-	int err;
-	struct i2c_msg msg = { .addr = state->config->demod_address,
-			       .flags = I2C_M_RD, .buf = buf, .len = len };
-
-	/* msleep(20); */ /* doesn't appear to be necessary */
-	if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
-		printk(KERN_WARNING "or51132: I2C read (addr 0x%02x len %d) error: %d\n",
-		       msg.addr, msg.len, err);
-		return -EREMOTEIO;
-	}
-	return 0;
-}
-
-/* Reads a 16-bit demod register.  Returns <0 on error. */
-static int or51132_readreg(struct or51132_state *state, u8 reg)
-{
-	u8 buf[2] = { 0x04, reg };
-	struct i2c_msg msg[2] = {
-		{.addr = state->config->demod_address, .flags = 0,
-		 .buf = buf, .len = 2 },
-		{.addr = state->config->demod_address, .flags = I2C_M_RD,
-		 .buf = buf, .len = 2 }};
-	int err;
-
-	if ((err = i2c_transfer(state->i2c, msg, 2)) != 2) {
-		printk(KERN_WARNING "or51132: I2C error reading register %d: %d\n",
-		       reg, err);
-		return -EREMOTEIO;
-	}
-	return buf[0] | (buf[1] << 8);
-}
-
-static int or51132_load_firmware (struct dvb_frontend* fe, const struct firmware *fw)
-{
-	struct or51132_state* state = fe->demodulator_priv;
-	static const u8 run_buf[] = {0x7F,0x01};
-	u8 rec_buf[8];
-	u32 firmwareAsize, firmwareBsize;
-	int i,ret;
-
-	dprintk("Firmware is %Zd bytes\n",fw->size);
-
-	/* Get size of firmware A and B */
-	firmwareAsize = le32_to_cpu(*((__le32*)fw->data));
-	dprintk("FirmwareA is %i bytes\n",firmwareAsize);
-	firmwareBsize = le32_to_cpu(*((__le32*)(fw->data+4)));
-	dprintk("FirmwareB is %i bytes\n",firmwareBsize);
-
-	/* Upload firmware */
-	if ((ret = or51132_writebuf(state, &fw->data[8], firmwareAsize))) {
-		printk(KERN_WARNING "or51132: load_firmware error 1\n");
-		return ret;
-	}
-	if ((ret = or51132_writebuf(state, &fw->data[8+firmwareAsize],
-				    firmwareBsize))) {
-		printk(KERN_WARNING "or51132: load_firmware error 2\n");
-		return ret;
-	}
-
-	if ((ret = or51132_writebuf(state, run_buf, 2))) {
-		printk(KERN_WARNING "or51132: load_firmware error 3\n");
-		return ret;
-	}
-	if ((ret = or51132_writebuf(state, run_buf, 2))) {
-		printk(KERN_WARNING "or51132: load_firmware error 4\n");
-		return ret;
-	}
-
-	/* 50ms for operation to begin */
-	msleep(50);
-
-	/* Read back ucode version to besure we loaded correctly and are really up and running */
-	/* Get uCode version */
-	if ((ret = or51132_writebytes(state, 0x10, 0x10, 0x00))) {
-		printk(KERN_WARNING "or51132: load_firmware error a\n");
-		return ret;
-	}
-	if ((ret = or51132_writebytes(state, 0x04, 0x17))) {
-		printk(KERN_WARNING "or51132: load_firmware error b\n");
-		return ret;
-	}
-	if ((ret = or51132_writebytes(state, 0x00, 0x00))) {
-		printk(KERN_WARNING "or51132: load_firmware error c\n");
-		return ret;
-	}
-	for (i=0;i<4;i++) {
-		/* Once upon a time, this command might have had something
-		   to do with getting the firmware version, but it's
-		   not used anymore:
-		   {0x04,0x00,0x30,0x00,i+1} */
-		/* Read 8 bytes, two bytes at a time */
-		if ((ret = or51132_readbuf(state, &rec_buf[i*2], 2))) {
-			printk(KERN_WARNING
-			       "or51132: load_firmware error d - %d\n",i);
-			return ret;
-		}
-	}
-
-	printk(KERN_WARNING
-	       "or51132: Version: %02X%02X%02X%02X-%02X%02X%02X%02X (%02X%01X-%01X-%02X%01X-%01X)\n",
-	       rec_buf[1],rec_buf[0],rec_buf[3],rec_buf[2],
-	       rec_buf[5],rec_buf[4],rec_buf[7],rec_buf[6],
-	       rec_buf[3],rec_buf[2]>>4,rec_buf[2]&0x0f,
-	       rec_buf[5],rec_buf[4]>>4,rec_buf[4]&0x0f);
-
-	if ((ret = or51132_writebytes(state, 0x10, 0x00, 0x00))) {
-		printk(KERN_WARNING "or51132: load_firmware error e\n");
-		return ret;
-	}
-	return 0;
-};
-
-static int or51132_init(struct dvb_frontend* fe)
-{
-	return 0;
-}
-
-static int or51132_read_ber(struct dvb_frontend* fe, u32* ber)
-{
-	*ber = 0;
-	return 0;
-}
-
-static int or51132_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
-{
-	*ucblocks = 0;
-	return 0;
-}
-
-static int or51132_sleep(struct dvb_frontend* fe)
-{
-	return 0;
-}
-
-static int or51132_setmode(struct dvb_frontend* fe)
-{
-	struct or51132_state* state = fe->demodulator_priv;
-	u8 cmd_buf1[3] = {0x04, 0x01, 0x5f};
-	u8 cmd_buf2[3] = {0x1c, 0x00, 0 };
-
-	dprintk("setmode %d\n",(int)state->current_modulation);
-
-	switch (state->current_modulation) {
-	case VSB_8:
-		/* Auto CH, Auto NTSC rej, MPEGser, MPEG2tr, phase noise-high */
-		cmd_buf1[2] = 0x50;
-		/* REC MODE inv IF spectrum, Normal */
-		cmd_buf2[1] = 0x03;
-		/* Channel MODE ATSC/VSB8 */
-		cmd_buf2[2] = 0x06;
-		break;
-	/* All QAM modes are:
-	   Auto-deinterleave; MPEGser, MPEG2tr, phase noise-high
-	   REC MODE Normal Carrier Lock */
-	case QAM_AUTO:
-		/* Channel MODE Auto QAM64/256 */
-		cmd_buf2[2] = 0x4f;
-		break;
-	case QAM_256:
-		/* Channel MODE QAM256 */
-		cmd_buf2[2] = 0x45;
-		break;
-	case QAM_64:
-		/* Channel MODE QAM64 */
-		cmd_buf2[2] = 0x43;
-		break;
-	default:
-		printk(KERN_WARNING
-		       "or51132: setmode: Modulation set to unsupported value (%d)\n",
-		       state->current_modulation);
-		return -EINVAL;
-	}
-
-	/* Set Receiver 1 register */
-	if (or51132_writebuf(state, cmd_buf1, 3)) {
-		printk(KERN_WARNING "or51132: set_mode error 1\n");
-		return -EREMOTEIO;
-	}
-	dprintk("set #1 to %02x\n", cmd_buf1[2]);
-
-	/* Set operation mode in Receiver 6 register */
-	if (or51132_writebuf(state, cmd_buf2, 3)) {
-		printk(KERN_WARNING "or51132: set_mode error 2\n");
-		return -EREMOTEIO;
-	}
-	dprintk("set #6 to 0x%02x%02x\n", cmd_buf2[1], cmd_buf2[2]);
-
-	return 0;
-}
-
-/* Some modulations use the same firmware.  This classifies modulations
-   by the firmware they use. */
-#define MOD_FWCLASS_UNKNOWN	0
-#define MOD_FWCLASS_VSB		1
-#define MOD_FWCLASS_QAM		2
-static int modulation_fw_class(fe_modulation_t modulation)
-{
-	switch(modulation) {
-	case VSB_8:
-		return MOD_FWCLASS_VSB;
-	case QAM_AUTO:
-	case QAM_64:
-	case QAM_256:
-		return MOD_FWCLASS_QAM;
-	default:
-		return MOD_FWCLASS_UNKNOWN;
-	}
-}
-
-static int or51132_set_parameters(struct dvb_frontend *fe)
-{
-	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
-	int ret;
-	struct or51132_state* state = fe->demodulator_priv;
-	const struct firmware *fw;
-	const char *fwname;
-	int clock_mode;
-
-	/* Upload new firmware only if we need a different one */
-	if (modulation_fw_class(state->current_modulation) !=
-	    modulation_fw_class(p->modulation)) {
-		switch (modulation_fw_class(p->modulation)) {
-		case MOD_FWCLASS_VSB:
-			dprintk("set_parameters VSB MODE\n");
-			fwname = OR51132_VSB_FIRMWARE;
-
-			/* Set non-punctured clock for VSB */
-			clock_mode = 0;
-			break;
-		case MOD_FWCLASS_QAM:
-			dprintk("set_parameters QAM MODE\n");
-			fwname = OR51132_QAM_FIRMWARE;
-
-			/* Set punctured clock for QAM */
-			clock_mode = 1;
-			break;
-		default:
-			printk("or51132: Modulation type(%d) UNSUPPORTED\n",
-			       p->modulation);
-			return -1;
-		}
-		printk("or51132: Waiting for firmware upload(%s)...\n",
-		       fwname);
-		ret = request_firmware(&fw, fwname, state->i2c->dev.parent);
-		if (ret) {
-			printk(KERN_WARNING "or51132: No firmware up"
-			       "loaded(timeout or file not found?)\n");
-			return ret;
-		}
-		ret = or51132_load_firmware(fe, fw);
-		release_firmware(fw);
-		if (ret) {
-			printk(KERN_WARNING "or51132: Writing firmware to "
-			       "device failed!\n");
-			return ret;
-		}
-		printk("or51132: Firmware upload complete.\n");
-		state->config->set_ts_params(fe, clock_mode);
-	}
-	/* Change only if we are actually changing the modulation */
-	if (state->current_modulation != p->modulation) {
-		state->current_modulation = p->modulation;
-		or51132_setmode(fe);
-	}
-
-	if (fe->ops.tuner_ops.set_params) {
-		fe->ops.tuner_ops.set_params(fe);
-		if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
-	}
-
-	/* Set to current mode */
-	or51132_setmode(fe);
-
-	/* Update current frequency */
-	state->current_frequency = p->frequency;
-	return 0;
-}
-
-static int or51132_get_parameters(struct dvb_frontend* fe)
-{
-	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
-	struct or51132_state* state = fe->demodulator_priv;
-	int status;
-	int retry = 1;
-
-start:
-	/* Receiver Status */
-	if ((status = or51132_readreg(state, 0x00)) < 0) {
-		printk(KERN_WARNING "or51132: get_parameters: error reading receiver status\n");
-		return -EREMOTEIO;
-	}
-	switch(status&0xff) {
-	case 0x06:
-		p->modulation = VSB_8;
-		break;
-	case 0x43:
-		p->modulation = QAM_64;
-		break;
-	case 0x45:
-		p->modulation = QAM_256;
-		break;
-	default:
-		if (retry--)
-			goto start;
-		printk(KERN_WARNING "or51132: unknown status 0x%02x\n",
-		       status&0xff);
-		return -EREMOTEIO;
-	}
-
-	/* FIXME: Read frequency from frontend, take AFC into account */
-	p->frequency = state->current_frequency;
-
-	/* FIXME: How to read inversion setting? Receiver 6 register? */
-	p->inversion = INVERSION_AUTO;
-
-	return 0;
-}
-
-static int or51132_read_status(struct dvb_frontend* fe, fe_status_t* status)
-{
-	struct or51132_state* state = fe->demodulator_priv;
-	int reg;
-
-	/* Receiver Status */
-	if ((reg = or51132_readreg(state, 0x00)) < 0) {
-		printk(KERN_WARNING "or51132: read_status: error reading receiver status: %d\n", reg);
-		*status = 0;
-		return -EREMOTEIO;
-	}
-	dprintk("%s: read_status %04x\n", __func__, reg);
-
-	if (reg & 0x0100) /* Receiver Lock */
-		*status = FE_HAS_SIGNAL|FE_HAS_CARRIER|FE_HAS_VITERBI|
-			  FE_HAS_SYNC|FE_HAS_LOCK;
-	else
-		*status = 0;
-	return 0;
-}
-
-/* Calculate SNR estimation (scaled by 2^24)
-
-   8-VSB SNR and QAM equations from Oren datasheets
-
-   For 8-VSB:
-     SNR[dB] = 10 * log10(897152044.8282 / MSE^2 ) - K
-
-     Where K = 0 if NTSC rejection filter is OFF; and
-	   K = 3 if NTSC rejection filter is ON
-
-   For QAM64:
-     SNR[dB] = 10 * log10(897152044.8282 / MSE^2 )
-
-   For QAM256:
-     SNR[dB] = 10 * log10(907832426.314266  / MSE^2 )
-
-   We re-write the snr equation as:
-     SNR * 2^24 = 10*(c - 2*intlog10(MSE))
-   Where for QAM256, c = log10(907832426.314266) * 2^24
-   and for 8-VSB and QAM64, c = log10(897152044.8282) * 2^24 */
-
-static u32 calculate_snr(u32 mse, u32 c)
-{
-	if (mse == 0) /* No signal */
-		return 0;
-
-	mse = 2*intlog10(mse);
-	if (mse > c) {
-		/* Negative SNR, which is possible, but realisticly the
-		demod will lose lock before the signal gets this bad.  The
-		API only allows for unsigned values, so just return 0 */
-		return 0;
-	}
-	return 10*(c - mse);
-}
-
-static int or51132_read_snr(struct dvb_frontend* fe, u16* snr)
-{
-	struct or51132_state* state = fe->demodulator_priv;
-	int noise, reg;
-	u32 c, usK = 0;
-	int retry = 1;
-
-start:
-	/* SNR after Equalizer */
-	noise = or51132_readreg(state, 0x02);
-	if (noise < 0) {
-		printk(KERN_WARNING "or51132: read_snr: error reading equalizer\n");
-		return -EREMOTEIO;
-	}
-	dprintk("read_snr noise (%d)\n", noise);
-
-	/* Read status, contains modulation type for QAM_AUTO and
-	   NTSC filter for VSB */
-	reg = or51132_readreg(state, 0x00);
-	if (reg < 0) {
-		printk(KERN_WARNING "or51132: read_snr: error reading receiver status\n");
-		return -EREMOTEIO;
-	}
-
-	switch (reg&0xff) {
-	case 0x06:
-		if (reg & 0x1000) usK = 3 << 24;
-		/* Fall through to QAM64 case */
-	case 0x43:
-		c = 150204167;
-		break;
-	case 0x45:
-		c = 150290396;
-		break;
-	default:
-		printk(KERN_WARNING "or51132: unknown status 0x%02x\n", reg&0xff);
-		if (retry--) goto start;
-		return -EREMOTEIO;
-	}
-	dprintk("%s: modulation %02x, NTSC rej O%s\n", __func__,
-		reg&0xff, reg&0x1000?"n":"ff");
-
-	/* Calculate SNR using noise, c, and NTSC rejection correction */
-	state->snr = calculate_snr(noise, c) - usK;
-	*snr = (state->snr) >> 16;
-
-	dprintk("%s: noise = 0x%08x, snr = %d.%02d dB\n", __func__, noise,
-		state->snr >> 24, (((state->snr>>8) & 0xffff) * 100) >> 16);
-
-	return 0;
-}
-
-static int or51132_read_signal_strength(struct dvb_frontend* fe, u16* strength)
-{
-	/* Calculate Strength from SNR up to 35dB */
-	/* Even though the SNR can go higher than 35dB, there is some comfort */
-	/* factor in having a range of strong signals that can show at 100%   */
-	struct or51132_state* state = (struct or51132_state*) fe->demodulator_priv;
-	u16 snr;
-	int ret;
-
-	ret = fe->ops.read_snr(fe, &snr);
-	if (ret != 0)
-		return ret;
-	/* Rather than use the 8.8 value snr, use state->snr which is 8.24 */
-	/* scale the range 0 - 35*2^24 into 0 - 65535 */
-	if (state->snr >= 8960 * 0x10000)
-		*strength = 0xffff;
-	else
-		*strength = state->snr / 8960;
-
-	return 0;
-}
-
-static int or51132_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fe_tune_settings)
-{
-	fe_tune_settings->min_delay_ms = 500;
-	fe_tune_settings->step_size = 0;
-	fe_tune_settings->max_drift = 0;
-
-	return 0;
-}
-
-static void or51132_release(struct dvb_frontend* fe)
-{
-	struct or51132_state* state = fe->demodulator_priv;
-	kfree(state);
-}
-
-static struct dvb_frontend_ops or51132_ops;
-
-struct dvb_frontend* or51132_attach(const struct or51132_config* config,
-				    struct i2c_adapter* i2c)
-{
-	struct or51132_state* state = NULL;
-
-	/* Allocate memory for the internal state */
-	state = kzalloc(sizeof(struct or51132_state), GFP_KERNEL);
-	if (state == NULL)
-		return NULL;
-
-	/* Setup the state */
-	state->config = config;
-	state->i2c = i2c;
-	state->current_frequency = -1;
-	state->current_modulation = -1;
-
-	/* Create dvb_frontend */
-	memcpy(&state->frontend.ops, &or51132_ops, sizeof(struct dvb_frontend_ops));
-	state->frontend.demodulator_priv = state;
-	return &state->frontend;
-}
-
-static struct dvb_frontend_ops or51132_ops = {
-	.delsys = { SYS_ATSC, SYS_DVBC_ANNEX_B },
-	.info = {
-		.name			= "Oren OR51132 VSB/QAM Frontend",
-		.frequency_min		= 44000000,
-		.frequency_max		= 958000000,
-		.frequency_stepsize	= 166666,
-		.caps = 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_QAM_64 | FE_CAN_QAM_256 | FE_CAN_QAM_AUTO |
-			FE_CAN_8VSB
-	},
-
-	.release = or51132_release,
-
-	.init = or51132_init,
-	.sleep = or51132_sleep,
-
-	.set_frontend = or51132_set_parameters,
-	.get_frontend = or51132_get_parameters,
-	.get_tune_settings = or51132_get_tune_settings,
-
-	.read_status = or51132_read_status,
-	.read_ber = or51132_read_ber,
-	.read_signal_strength = or51132_read_signal_strength,
-	.read_snr = or51132_read_snr,
-	.read_ucblocks = or51132_read_ucblocks,
-};
-
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
-
-MODULE_DESCRIPTION("OR51132 ATSC [pcHDTV HD-3000] (8VSB & ITU J83 AnnexB FEC QAM64/256) Demodulator Driver");
-MODULE_AUTHOR("Kirk Lapray");
-MODULE_AUTHOR("Trent Piepho");
-MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL(or51132_attach);
-
-/*
- * Local variables:
- * c-basic-offset: 8
- * End:
- */