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Commit f91e59cb authored by Andreas Regel's avatar Andreas Regel Committed by Mauro Carvalho Chehab
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V4L/DVB (13979): [STV090x] Added possibility to set a fixed TS output clock. 



This could be useful for p.e. Common Interface applications where data rate is limited.

Signed-off-by: default avatarAndreas Regel <andreas.regel@gmx.de>
Signed-off-by: default avatarManu Abraham <manu@linuxtv.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent c369b7c2

drivers/media/dvb/frontends/stv090x.c

+65 −0
Original line number Diff line number Diff line
@@ -4199,6 +4199,71 @@ static int stv090x_set_tspath(struct stv090x_state *state) 
	default:

		break;

	}



	if (state->config->ts1_clk > 0) {

		u32 speed;



		switch (state->config->ts1_mode) {

		case STV090x_TSMODE_PARALLEL_PUNCTURED:

		case STV090x_TSMODE_DVBCI:

		default:

			speed = state->internal->mclk /

				(state->config->ts1_clk / 4);

			if (speed < 0x08)

				speed = 0x08;

			if (speed > 0xFF)

				speed = 0xFF;

			break;

		case STV090x_TSMODE_SERIAL_PUNCTURED:

		case STV090x_TSMODE_SERIAL_CONTINUOUS:

			speed = state->internal->mclk /

				(state->config->ts1_clk / 32);

			if (speed < 0x20)

				speed = 0x20;

			if (speed > 0xFF)

				speed = 0xFF;

			break;

		}

		reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);

		STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);

		if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)

			goto err;

		if (stv090x_write_reg(state, STV090x_P1_TSSPEED, speed) < 0)

			goto err;

	}



	if (state->config->ts2_clk > 0) {

		u32 speed;



		switch (state->config->ts2_mode) {

		case STV090x_TSMODE_PARALLEL_PUNCTURED:

		case STV090x_TSMODE_DVBCI:

		default:

			speed = state->internal->mclk /

				(state->config->ts2_clk / 4);

			if (speed < 0x08)

				speed = 0x08;

			if (speed > 0xFF)

				speed = 0xFF;

			break;

		case STV090x_TSMODE_SERIAL_PUNCTURED:

		case STV090x_TSMODE_SERIAL_CONTINUOUS:

			speed = state->internal->mclk /

				(state->config->ts2_clk / 32);

			if (speed < 0x20)

				speed = 0x20;

			if (speed > 0xFF)

				speed = 0xFF;

			break;

		}

		reg = stv090x_read_reg(state, STV090x_P2_TSCFGM);

		STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);

		if (stv090x_write_reg(state, STV090x_P2_TSCFGM, reg) < 0)

			goto err;

		if (stv090x_write_reg(state, STV090x_P2_TSSPEED, speed) < 0)

			goto err;

	}



	reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);

	STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);

	if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)

drivers/media/dvb/frontends/stv090x.h

+2 −0
Original line number Diff line number Diff line
@@ -70,6 +70,8 @@ struct stv090x_config { 


	u8 ts1_mode;

	u8 ts2_mode;

	u32 ts1_clk;

	u32 ts2_clk;



	enum stv090x_i2crpt	repeater_level;