theatre200.c

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		ERROR_0("Microcode: error reading FIFO status0\n");
		return -1;
	}


	if (RT_fifor(0x100, &data8))
		DEBUG("Microcode: FIFO status1: %x\n", data8);
	else
	{
		ERROR_0("Microcode: error reading FIFO status1\n");
		return -1;
	}

	/*
	 * Download the Boot Code and CRC Checking Code (first segment)
	 */
	seg_id = 1;
	while(result != DSP_OK && tries < 10)
	{
		/* Put DSP in reset before download (0x02) */
		RT_regr(VIP_TC_DOWNLOAD, &data);
		RT_regw(VIP_TC_DOWNLOAD, (data & ~VIP_TC_DOWNLOAD__TC_RESET_MODE) | (0x02 << 17));
					 
		/* 
		 * Configure shuttle bus for tranfer between DSP I/O "Program Interface"
		 * and Program Memory at address 0 
		 */

		RT_regw(VIP_TC_SOURCE, 0x90000000);
		RT_regw(VIP_TC_DESTINATION, 0x00000000);
		RT_regw(VIP_TC_COMMAND, 0xe0000044 | ((seg_list->num_bytes - 1) << 7));

		/* Load first segment */
		DEBUG_0("Microcode: Loading first segment\n");

		if (!RT_fifow(0x700, seg_list->num_bytes, seg_list->data))
		{
			ERROR_0("Microcode: write to FIFOD failed\n");
			return -1;
		}

		/* Wait until Shuttle bus channel 14 is available */
		i = data = 0;
		RT_regr(VIP_TC_STATUS, &data);
		while(((data & VIP_TC_STATUS__TC_CHAN_BUSY) & 0x00004000) && (i++ < 10000))
			RT_regr(VIP_TC_STATUS, &data);

		if (i >= 10000)
		{
			ERROR_0("Microcode: channel 14 timeout\n");
			return -1;
		}

		DEBUG_0("Microcode: dsp_load: checkpoint 1\n");
		DEBUG("Microcode: TC_STATUS: %x\n", data);

		/* transfer the code from program memory to data memory */
		RT_regw(VIP_TC_SOURCE, 0x00000000);
		RT_regw(VIP_TC_DESTINATION, 0x10000000);
		RT_regw(VIP_TC_COMMAND, 0xe0000006 | ((seg_list->num_bytes - 1) << 7));

		/* Wait until Shuttle bus channel 14 is available */
		i = data = 0;
		RT_regr(VIP_TC_STATUS, &data);
		while(((data & VIP_TC_STATUS__TC_CHAN_BUSY) & 0x00004000) && (i++ < 10000))
			RT_regr(VIP_TC_STATUS, &data);
					 
		if (i >= 10000)
		{
			ERROR_0("Microcode: channel 14 timeout\n");
			return -1;
		}
		DEBUG_0("Microcode: dsp_load: checkpoint 2\n");
		DEBUG("Microcode: TC_STATUS: %x\n", data);

		/* Take DSP out from reset (0x0) */
		data = 0;
		RT_regr(VIP_TC_DOWNLOAD, &data);
		RT_regw(VIP_TC_DOWNLOAD, data & ~VIP_TC_DOWNLOAD__TC_RESET_MODE);

		RT_regr(VIP_TC_STATUS, &data);
		DEBUG_0("Microcode: dsp_load: checkpoint 3\n");
		DEBUG("Microcode: TC_STATUS: %x\n", data);

		/* send dsp_download_check_CRC */
		fb_scratch0 = ((seg_list->num_bytes << 16) & 0xffff0000) | ((seg_id << 8) & 0xff00) | (0xff & 193);
		fb_scratch1 = (unsigned int)seg_list->crc_val;
					 
		result = dsp_send_command(t, fb_scratch1, fb_scratch0);

		DEBUG_0("Microcode: dsp_load: checkpoint 4\n");
	}

	if (tries >= 10)
	{
		ERROR_0("Microcode: Download of boot degment failed\n");
		return -1;
	}

	DEBUG_0("Microcode: Download of boot code succeeded\n");

	while((seg_list = seg_list->next) != NULL)
	{
		seg_id++;
		result = tries = 0;
		while(result != DSP_OK && tries < 10)
		{
			/* 
			 * Configure shuttle bus for tranfer between DSP I/O "Program Interface"
			 * and Data Memory at address 0 
			 */

			RT_regw(VIP_TC_SOURCE, 0x90000000);
			RT_regw(VIP_TC_DESTINATION, 0x10000000);
			RT_regw(VIP_TC_COMMAND, 0xe0000044 | ((seg_list->num_bytes - 1) << 7));

			if (!RT_fifow(0x700, seg_list->num_bytes, seg_list->data))
			{
				ERROR_0("Microcode: write to FIFOD failed\n");
				return -1;
			}
										
			i = data = 0;
			RT_regr(VIP_TC_STATUS, &data);
			while(((data & VIP_TC_STATUS__TC_CHAN_BUSY) & 0x00004000) && (i++ < 10000))
				RT_regr(VIP_TC_STATUS, &data);
										
			/* send dsp_download_check_CRC */
			fb_scratch0 = ((seg_list->num_bytes << 16) & 0xffff0000) | ((seg_id << 8) & 0xff00) | (0xff & 193);
			fb_scratch1 = (unsigned int)seg_list->crc_val;
										
			result = dsp_send_command(t, fb_scratch1, fb_scratch0);
		}

		if (i >=10)
		{
			ERROR("Microcode: DSP failed to move seg: %x from data to code memory\n", seg_id);
			return -1;
		}

		DEBUG("Microcode: segment: %x loaded\n", seg_id);

		/*
		 * The segment is downloaded correctly to data memory. Now move it to code memory
		 * by using dsp_download_code_transfer command.
		 */

		fb_scratch0 = ((seg_list->num_bytes << 16) & 0xffff0000) | ((seg_id << 8) & 0xff00) | (0xff & 194);
		fb_scratch1 = (unsigned int)seg_list->download_dst;
								
		result = dsp_send_command(t, fb_scratch1, fb_scratch0);

		if (result != DSP_OK)
		{
			ERROR("Microcode: DSP failed to move seg: %x from data to code memory\n", seg_id);
			return -1;
		}
	}

	DEBUG_0("Microcode: download complete\n");

	/*
	 * The last step is sending dsp_download_check_CRC with "download complete"
	 */

	fb_scratch0 = ((165 << 8) & 0xff00) | (0xff & 193);
	fb_scratch1 = (unsigned int)0x11111;
								
	result = dsp_send_command(t, fb_scratch1, fb_scratch0);

	if (result == DSP_OK)
		DEBUG_0("Microcode: DSP microcode successfully loaded\n");
	else
	{
		ERROR_0("Microcode: DSP microcode UNsuccessfully loaded\n");
		return -1;
	}

	return 0;
}

static CARD32 dsp_send_command(TheatrePtr t, CARD32 fb_scratch1, CARD32 fb_scratch0)
{
	CARD32 data;
	int i;

	/*
	 * Clear the FB_INT0 bit in INT_CNTL
	 */
	RT_regr(VIP_INT_CNTL, &data);
	RT_regw(VIP_INT_CNTL, data | VIP_INT_CNTL__FB_INT0_CLR);

	/*
	 * Write FB_SCRATCHx registers. If FB_SCRATCH1==0 then we have a DWORD command.
	 */
	RT_regw(VIP_FB_SCRATCH0, fb_scratch0);
	if (fb_scratch1 != 0)
		RT_regw(VIP_FB_SCRATCH1, fb_scratch1);	

	/*
	 * Attention DSP. We are talking to you.
	 */
	RT_regr(VIP_FB_INT, &data);
	RT_regw(VIP_FB_INT, data | VIP_FB_INT__INT_7);

	/*
	 * Wait (by polling) for the DSP to process the command.
	 */
	i = 0;
	RT_regr(VIP_INT_CNTL, &data);
	while((!(data & VIP_INT_CNTL__FB_INT0)) /*&& (i++ < 10000)*/)
		RT_regr(VIP_INT_CNTL, &data);
	
	/*
	 * The return code is in FB_SCRATCH0
	 */
	RT_regr(VIP_FB_SCRATCH0, &fb_scratch0);

	/*
	 * If we are here it means we got an answer. Clear the FB_INT0 bit.
	 */
	RT_regr(VIP_INT_CNTL, &data);
	RT_regw(VIP_INT_CNTL, data | VIP_INT_CNTL__FB_INT0_CLR);

	
	return fb_scratch0;
}

static CARD32 dsp_set_video_input_connector(TheatrePtr t, CARD32 connector)
{
	CARD32 fb_scratch0 = 0;
	CARD32 result;
	int screen = t->VIP->scrnIndex;

	fb_scratch0 = ((connector << 8) & 0xff00) | (55 & 0xff);

	result = dsp_send_command(t, 0, fb_scratch0);

	DEBUG_2("dsp_set_video_input_connector: %x, result: %x\n", connector, result);
		  
	 return result;
}

#if 0
static CARD32 dsp_reset(TheatrePtr t)
{
	CARD32 fb_scratch0 = 0;
	CARD32 result;
	int screen = t->VIP->scrnIndex;

	fb_scratch0 = ((2 << 8) & 0xff00) | (8 & 0xff);

	result = dsp_send_command(t, 0, fb_scratch0);

	DEBUG("dsp_reset: %x\n", result);
		  
	return result;
}
#endif

static CARD32 dsp_set_lowpowerstate(TheatrePtr t, CARD32 pstate)
{
	CARD32 fb_scratch0 = 0;
	CARD32 result;
	int screen = t->VIP->scrnIndex;

	fb_scratch0 = ((pstate << 8) & 0xff00) | (82 & 0xff);

	result = dsp_send_command(t, 0, fb_scratch0);

	DEBUG("dsp_set_lowpowerstate: %x\n", result);
		  
	return result;
}
static CARD32 dsp_set_video_standard(TheatrePtr t, CARD32 standard)
{
	CARD32 fb_scratch0 = 0;
	CARD32 result;
	int screen = t->VIP->scrnIndex;

	fb_scratch0 = ((standard << 8) & 0xff00) | (52 & 0xff);

	result = dsp_send_command(t, 0, fb_scratch0);

	DEBUG("dsp_set_video_standard: %x\n", result);
		  
	return result;
}

static CARD32 dsp_set_videostreamformat(TheatrePtr t, CARD32 format)
{
	CARD32 fb_scratch0 = 0;
	CARD32 result;
	int screen = t->VIP->scrnIndex;

	fb_scratch0 = ((format << 8) & 0xff00) | (65 & 0xff);

	result = dsp_send_command(t, 0, fb_scratch0);

	DEBUG("dsp_set_videostreamformat: %x\n", result);
		  
	return result;
}

static CARD32 dsp_video_standard_detection(TheatrePtr t)
{
	CARD32 fb_scratch0 = 0;
	CARD32 result;
	int screen = t->VIP->scrnIndex;

	fb_scratch0 = 0 | (54 & 0xff);

	result = dsp_send_command(t, 0, fb_scratch0);

	DEBUG("dsp_video_standard_detection: %x\n", result);

	return result;
}

#if 0
static CARD32 dsp_get_signallockstatus(TheatrePtr t)
{
	CARD32 fb_scratch1 = 0;
	CARD32 fb_scratch0 = 0;
	CARD32 result;
	int screen = t->VIP->scrnIndex;

	fb_scratch0 = 0 | (77 & 0xff);

	result = dsp_send_command(t, fb_scratch1, fb_scratch0);

	DEBUG_3("dsp_get_signallockstatus: %x, h_pll: %x, v_pll: %x\n", \
		result, (result >> 8) & 0xff, (result >> 16) & 0xff);
		  
	return result;
}

static CARD32 dsp_get_signallinenumber(TheatrePtr t)
{
	CARD32 fb_scratch1 = 0;
	CARD32 fb_scratch0 = 0;
	CARD32 result;
	int screen = t->VIP->scrnIndex;

	fb_scratch0 = 0 | (78 & 0xff);

	result = dsp_send_command(t, fb_scratch1, fb_scratch0);

	DEBUG_2("dsp_get_signallinenumber: %x, linenum: %x\n", \
		result, (result >> 8) & 0xffff);
		  
	return result;
}
#endif

static CARD32 dsp_set_brightness(TheatrePtr t, CARD8 brightness)
{
	CARD32 fb_scratch1 = 0;
	CARD32 fb_scratch0 = 0;
	CARD32 result;
	int screen = t->VIP->scrnIndex;

	fb_scratch0 = ((brightness << 8) & 0xff00) | (67 & 0xff);

	result = dsp_send_command(t, fb_scratch1, fb_scratch0);
	
	DEBUG("dsp_set_brightness: %x\n", result);
		  
	return result;
}

static CARD32 dsp_set_contrast(TheatrePtr t, CARD8 contrast)
{
	CARD32 fb_scratch1 = 0;
	CARD32 fb_scratch0 = 0;
	CARD32 result;
	int screen = t->VIP->scrnIndex;

	fb_scratch0 = ((contrast << 8) & 0xff00) | (71 & 0xff);

	result = dsp_send_command(t, fb_scratch1, fb_scratch0);

	DEBUG("dsp_set_contrast: %x\n", result);
  
	return result;
}