static void msm_hsl_set_mctrl_irda(struct uart_port *port, unsigned int mctrl)
{
	unsigned int vid = UART_TO_MSM(port)->ver_id;
	unsigned int mr;
	unsigned int loop_mode;

	mr = msm_hsl_read(port, regmap[vid][UARTDM_MR1]);

	if (!(mctrl & TIOCM_RTS)) {
		mr &= ~UARTDM_MR1_RX_RDY_CTL_BMSK;
		msm_hsl_write(port, mr, regmap[vid][UARTDM_MR1]);
		msm_hsl_write(port, RFR_HIGH, regmap[vid][UARTDM_CR]);
	} else {
		mr |= UARTDM_MR1_RX_RDY_CTL_BMSK;
		msm_hsl_write(port, mr, regmap[vid][UARTDM_MR1]);
	}

	loop_mode = TIOCM_LOOP & mctrl;
	if (loop_mode) {
		mr = msm_hsl_read(port, regmap[vid][UARTDM_MR2]);
		mr |= UARTDM_MR2_LOOP_MODE_BMSK;
		msm_hsl_write(port, mr, regmap[vid][UARTDM_MR2]);

		/* Reset TX */
		msm_hsl_reset(port);

		/* Turn on Uart Receiver & Transmitter*/
		msm_hsl_write(port, UARTDM_CR_RX_EN_BMSK
		      | UARTDM_CR_TX_EN_BMSK, regmap[vid][UARTDM_CR]);
	}
}
Example #2
0
static void msm_hsl_set_mctrl(struct uart_port *port, unsigned int mctrl)
{
	unsigned int mr;
	unsigned int loop_mode;

	clk_en(port, 1);

	mr = msm_hsl_read(port, UARTDM_MR1_ADDR);

	if (!(mctrl & TIOCM_RTS)) {
		mr &= ~UARTDM_MR1_RX_RDY_CTL_BMSK;
		msm_hsl_write(port, mr, UARTDM_MR1_ADDR);
		msm_hsl_write(port, RFR_HIGH, UARTDM_CR_ADDR);
	} else {
		mr |= UARTDM_MR1_RX_RDY_CTL_BMSK;
		msm_hsl_write(port, mr, UARTDM_MR1_ADDR);
	}

	loop_mode = TIOCM_LOOP & mctrl;
	if (loop_mode) {
		mr = msm_hsl_read(port, UARTDM_MR2_ADDR);
		mr |= UARTDM_MR2_LOOP_MODE_BMSK;
		msm_hsl_write(port, mr, UARTDM_MR2_ADDR);

		/* Reset TX */
		msm_hsl_reset(port);

		/* Turn on Uart Receiver & Transmitter*/
		msm_hsl_write(port, UARTDM_CR_RX_EN_BMSK
			      | UARTDM_CR_TX_EN_BMSK, UARTDM_CR_ADDR);
	}

	clk_en(port, 0);
}
Example #3
0
static int msm_hsl_console_setup(struct console *co, char *options)
{
	struct uart_port *port;
	unsigned int vid;
	int baud = 0, flow, bits, parity;
	int ret;

	pr_info("%s: ir\n", __func__);

	if (unlikely(co->index >= UART_NR || co->index < 0))
		return -ENXIO;

	port = get_port_from_line(co->index);
	vid = UART_TO_MSM(port)->ver_id;
	pr_info("%s ():port->line %d, ir\n", __func__, port->line);
	if (unlikely(!port->membase))
		return -ENXIO;

	port->cons = co;

	pm_runtime_get_noresume(port->dev);

#ifndef CONFIG_PM_RUNTIME
	msm_hsl_init_clock(port);
#endif
	pm_runtime_resume(port->dev);

	if (options)
		uart_parse_options(options, &baud, &parity, &bits, &flow);

	bits = 8;
	parity = 'n';
	flow = 'n';
	msm_hsl_write(port, UARTDM_MR2_BITS_PER_CHAR_8 | STOP_BIT_ONE,
		      regmap[vid][UARTDM_MR2]);	

	if (baud < 300 || baud > 115200)
		baud = 115200;
	
	msm_hsl_set_baud_rate(port, baud);
	pr_info("%s: cir port[%d] set baud=%d\n", __func__, port->line, baud);

	ret = uart_set_options(port, co, baud, parity, bits, flow);
	msm_hsl_reset(port);
	
	msm_hsl_write(port, CR_PROTECTION_EN, regmap[vid][UARTDM_CR]);
	msm_hsl_write(port, UARTDM_CR_TX_EN_BMSK, regmap[vid][UARTDM_CR]);

	printk(KERN_INFO "msm_serial_hsl: console setup on port #%d\n",
	       port->line);
	pr_info("%s ():port->line %d, ok, ir\n", __func__, port->line);
	return ret;
}
static int __init msm_hsl_console_setup(struct console *co, char *options)
{
	struct uart_port *port;
	int baud, flow, bits, parity;
	int ret;

	if (unlikely(co->index >= UART_NR || co->index < 0))
		return -ENXIO;

	port = get_port_from_line(co->index);

	if (unlikely(!port->membase))
		return -ENXIO;

	port->cons = co;

	pm_runtime_get_noresume(port->dev);

#ifndef CONFIG_PM_RUNTIME
	msm_hsl_init_clock(port);
#endif
	pm_runtime_resume(port->dev);

	if (options)
		uart_parse_options(options, &baud, &parity, &bits, &flow);

	bits = 8;
	parity = 'n';
	flow = 'n';
	msm_hsl_write(port, UARTDM_MR2_BITS_PER_CHAR_8 | STOP_BIT_ONE,
		      UARTDM_MR2_ADDR);	/* 8N1 */

	if (baud < 300 || baud > 115200)
		baud = 115200;
	msm_hsl_set_baud_rate(port, baud);

	ret = uart_set_options(port, co, baud, parity, bits, flow);
	msm_hsl_reset(port);
	/* Enable transmitter */
	msm_hsl_write(port, CR_PROTECTION_EN, UARTDM_CR_ADDR);
	msm_hsl_write(port, UARTDM_CR_TX_EN_BMSK, UARTDM_CR_ADDR);

	printk(KERN_INFO "msm_serial_hsl: console setup on port #%d\n",
	       port->line);

    console_uart_port = port;
    b_terminal_onoff = 0;

	return ret;
}
Example #5
0
static void msm_hsl_set_mctrl_cir(struct uart_port *port, unsigned int mctrl)
{
	unsigned int vid = UART_TO_MSM(port)->ver_id;
	unsigned int mr;
	unsigned int loop_mode;

	clk_en(port, 1);

	mr = msm_hsl_read(port, regmap[vid][UARTDM_MR1]);

	if (!(mctrl & TIOCM_RTS)) {
		pr_info("%s ()mctrl & TIOCM_RTS:port->line %d, ir\n", __func__, port->line);
		mr &= ~UARTDM_MR1_RX_RDY_CTL_BMSK;
		msm_hsl_write(port, mr, regmap[vid][UARTDM_MR1]);
		msm_hsl_write(port, RFR_HIGH, regmap[vid][UARTDM_CR]);
	} else {
		mr |= UARTDM_MR1_RX_RDY_CTL_BMSK;
		msm_hsl_write(port, mr, regmap[vid][UARTDM_MR1]);
		pr_info("%s () TIOCM_RTS:port->line %d, ir\n", __func__, port->line);
	}

	loop_mode = TIOCM_LOOP & mctrl;
	if (loop_mode) {
		pr_info("%s ()loop_mode:port->line %d, ir\n", __func__, port->line);
		mr = msm_hsl_read(port, regmap[vid][UARTDM_MR2]);
		mr |= UARTDM_MR2_LOOP_MODE_BMSK;
		msm_hsl_write(port, mr, regmap[vid][UARTDM_MR2]);

		
		msm_hsl_reset(port);

		
		msm_hsl_write(port, UARTDM_CR_RX_EN_BMSK
		      | UARTDM_CR_TX_EN_BMSK, regmap[vid][UARTDM_CR]);
	}

	clk_en(port, 0);
}
Example #6
0
static void msm_hsl_set_baud_rate(struct uart_port *port, unsigned int baud)
{
	unsigned int baud_code, rxstale, watermark;
	unsigned int data;
	struct msm_hsl_port *msm_hsl_port = UART_TO_MSM(port);

	switch (baud) {
#ifdef CONFIG_LGE_FELICA
	case 300:
		baud_code = UARTDM_CSR_75;
		rxstale = 1;
		break;
	case 600:
		baud_code = UARTDM_CSR_150;
		rxstale = 1;
		break;
	case 1200:
		baud_code = UARTDM_CSR_300;
		rxstale = 1;
		break;
	case 2400:
		baud_code = UARTDM_CSR_600;
		rxstale = 1;
		break;
	case 4800:
		baud_code = UARTDM_CSR_1200;
		rxstale = 1;
		break;
	case 9600:
		baud_code = UARTDM_CSR_2400;
		rxstale = 2;
		break;
	case 14400:
		baud_code = UARTDM_CSR_3600;
		rxstale = 3;
		break;
	case 19200:
		baud_code = UARTDM_CSR_4800;
		rxstale = 4;
		break;
	case 28800:
		baud_code = UARTDM_CSR_7200;
		rxstale = 6;
		break;
	case 38400:
		baud_code = UARTDM_CSR_9600;
		rxstale = 8;
		break;
	case 57600:
		baud_code = UARTDM_CSR_14400;
		rxstale = 16;
		break;
    case 230400:
        baud_code = 0xee;
        rxstale = 31;
        break;
    case 460800:
        baud_code = 0xff;
        rxstale = 31;
        break;
	case 115200:
	default:
		baud_code = UARTDM_CSR_28800;
		rxstale = 31;
		break;
#else
	case 300:
		baud_code = UARTDM_CSR_75;
		rxstale = 1;
		break;
	case 600:
		baud_code = UARTDM_CSR_150;
		rxstale = 1;
		break;
	case 1200:
		baud_code = UARTDM_CSR_300;
		rxstale = 1;
		break;
	case 2400:
		baud_code = UARTDM_CSR_600;
		rxstale = 1;
		break;
	case 4800:
		baud_code = UARTDM_CSR_1200;
		rxstale = 1;
		break;
	case 9600:
		baud_code = UARTDM_CSR_2400;
		rxstale = 2;
		break;
	case 14400:
		baud_code = UARTDM_CSR_3600;
		rxstale = 3;
		break;
	case 19200:
		baud_code = UARTDM_CSR_4800;
		rxstale = 4;
		break;
	case 28800:
		baud_code = UARTDM_CSR_7200;
		rxstale = 6;
		break;
	case 38400:
		baud_code = UARTDM_CSR_9600;
		rxstale = 8;
		break;
	case 57600:
		baud_code = UARTDM_CSR_14400;
		rxstale = 16;
		break;
	case 115200:
		baud_code = UARTDM_CSR_28800;
		rxstale = 31;
		break;
	case 230400:
		baud_code = UARTDM_CSR_57600;
		rxstale = 31;
		break;
	case 460800:
		baud_code = UARTDM_CSR_115200;
		rxstale = 31;
		break;
	default: /* 115200 baud rate */
		baud_code = UARTDM_CSR_28800;
		rxstale = 31;
		break;
#endif
	}

	msm_hsl_write(port, baud_code, UARTDM_CSR_ADDR);

	/* RX stale watermark */
	watermark = UARTDM_IPR_STALE_LSB_BMSK & rxstale;
	watermark |= UARTDM_IPR_STALE_TIMEOUT_MSB_BMSK & (rxstale << 2);
	msm_hsl_write(port, watermark, UARTDM_IPR_ADDR);

	/* set RX watermark
	 * Configure Rx Watermark as 3/4 size of Rx FIFO.
	 * RFWR register takes value in Words for UARTDM Core
	 * whereas it is consider to be in Bytes for UART Core.
	 * Hence configuring Rx Watermark as 12 Words.
	 */
	watermark = (port->fifosize * 3) / (4 * 4);
	msm_hsl_write(port, watermark, UARTDM_RFWR_ADDR);

	/* set TX watermark */
	msm_hsl_write(port, 0, UARTDM_TFWR_ADDR);

	msm_hsl_write(port, CR_PROTECTION_EN, UARTDM_CR_ADDR);
	msm_hsl_reset(port);

	data = UARTDM_CR_TX_EN_BMSK;
	data |= UARTDM_CR_RX_EN_BMSK;
	/* enable TX & RX */
	msm_hsl_write(port, data, UARTDM_CR_ADDR);

	msm_hsl_write(port, RESET_STALE_INT, UARTDM_CR_ADDR);
	/* turn on RX and CTS interrupts */
	msm_hsl_port->imr = UARTDM_ISR_RXSTALE_BMSK
		| UARTDM_ISR_DELTA_CTS_BMSK | UARTDM_ISR_RXLEV_BMSK;
	msm_hsl_write(port, msm_hsl_port->imr, UARTDM_IMR_ADDR);
	msm_hsl_write(port, 6500, UARTDM_DMRX_ADDR);
	msm_hsl_write(port, STALE_EVENT_ENABLE, UARTDM_CR_ADDR);
}
static int msm_hsl_startup(struct uart_port *port)
{
	struct msm_hsl_port *msm_hsl_port = UART_TO_MSM(port);
	unsigned int data, rfr_level;
	int ret;
	unsigned long flags;

	snprintf(msm_hsl_port->name, sizeof(msm_hsl_port->name),
		 "msm_serial_hsl%d", port->line);

#ifndef CONFIG_PM_RUNTIME
	msm_hsl_init_clock(port);
#endif
	pm_runtime_get_sync(port->dev);

	if (likely(port->fifosize > 12))
		rfr_level = port->fifosize - 12;
	else
		rfr_level = port->fifosize;

	spin_lock_irqsave(&port->lock, flags);

	/* set automatic RFR level */
	data = msm_hsl_read(port, UARTDM_MR1_ADDR);
	data &= ~UARTDM_MR1_AUTO_RFR_LEVEL1_BMSK;
	data &= ~UARTDM_MR1_AUTO_RFR_LEVEL0_BMSK;
	data |= UARTDM_MR1_AUTO_RFR_LEVEL1_BMSK & (rfr_level << 2);
	data |= UARTDM_MR1_AUTO_RFR_LEVEL0_BMSK & rfr_level;
	msm_hsl_write(port, data, UARTDM_MR1_ADDR);


	/* Make sure IPR is not 0 to start with*/
	msm_hsl_write(port, UARTDM_IPR_STALE_LSB_BMSK, UARTDM_IPR_ADDR);
	data = 0;

	if (!(is_console(port)) || (!port->cons) ||
		(port->cons && (!(port->cons->flags & CON_ENABLED)))) {
		msm_hsl_write(port, CR_PROTECTION_EN, UARTDM_CR_ADDR);
		msm_hsl_write(port, UARTDM_MR2_BITS_PER_CHAR_8 | STOP_BIT_ONE,
			      UARTDM_MR2_ADDR);	/* 8N1 */
		msm_hsl_reset(port);
		data = UARTDM_CR_TX_EN_BMSK;
	}

	if(b_terminal_onoff == 0 && console_uart_port && (port == console_uart_port)){
		msm_hsl_write(port, data, UARTDM_CR_ADDR);	/* enable TX */
	}else{
		data |= UARTDM_CR_RX_EN_BMSK;
		msm_hsl_write(port, data, UARTDM_CR_ADDR);	/* enable TX & RX */
	}

	/* turn on RX and CTS interrupts */
	msm_hsl_port->imr = UARTDM_ISR_RXSTALE_BMSK
		| UARTDM_ISR_DELTA_CTS_BMSK | UARTDM_ISR_RXLEV_BMSK;

	spin_unlock_irqrestore(&port->lock, flags);

	ret = request_irq(port->irq, msm_hsl_irq, IRQF_TRIGGER_HIGH,
			  msm_hsl_port->name, port);
	if (unlikely(ret)) {
		printk(KERN_ERR "%s: failed to request_irq\n", __func__);
		return ret;
	}

	spin_lock_irqsave(&port->lock, flags);
	msm_hsl_write(port, RESET_STALE_INT, UARTDM_CR_ADDR);
	msm_hsl_write(port, 6500, UARTDM_DMRX_ADDR);
	msm_hsl_write(port, STALE_EVENT_ENABLE, UARTDM_CR_ADDR);
	msm_hsl_write(port, msm_hsl_port->imr, UARTDM_IMR_ADDR);
	spin_unlock_irqrestore(&port->lock, flags);

	return 0;
}
Example #8
0
static int msm_hsl_startup(struct uart_port *port)
{
	struct msm_hsl_port *msm_hsl_port = UART_TO_MSM(port);
	struct platform_device *pdev = to_platform_device(port->dev);
	struct msm_serial_hslite_platform_data *pdata = pdev->dev.platform_data;
	unsigned int data, rfr_level;
	int ret;
	unsigned long flags;

	snprintf(msm_hsl_port->name, sizeof(msm_hsl_port->name),
		 "msm_serial_hsl%d", port->line);

	if (!(is_console(port)) || (!port->cons) ||
		(port->cons && (!(port->cons->flags & CON_ENABLED)))) {
		if (msm_serial_hsl_has_gsbi())
			if ((ioread32(msm_hsl_port->mapped_gsbi +
				GSBI_CONTROL_ADDR) & GSBI_PROTOCOL_I2C_UART)
					!= GSBI_PROTOCOL_I2C_UART)
				iowrite32(GSBI_PROTOCOL_I2C_UART,
					msm_hsl_port->mapped_gsbi +
						GSBI_CONTROL_ADDR);

		if (pdata && pdata->config_gpio) {
			ret = gpio_request(pdata->uart_tx_gpio,
							"UART_TX_GPIO");
			if (unlikely(ret)) {
				pr_err("%s: gpio request failed for:%d\n",
						 __func__, pdata->uart_tx_gpio);
				return ret;
			}

			ret = gpio_request(pdata->uart_rx_gpio, "UART_RX_GPIO");
			if (unlikely(ret)) {
				pr_err("%s: gpio request failed for:%d\n",
						__func__, pdata->uart_rx_gpio);
				gpio_free(pdata->uart_tx_gpio);
				return ret;
			}
		}
	}
#ifndef CONFIG_PM_RUNTIME
	msm_hsl_init_clock(port);
#endif
	pm_runtime_get_sync(port->dev);

	if (likely(port->fifosize > 12))
		rfr_level = port->fifosize - 12;
	else
		rfr_level = port->fifosize;

	spin_lock_irqsave(&port->lock, flags);

	/* set automatic RFR level */
	data = msm_hsl_read(port, UARTDM_MR1_ADDR);
	data &= ~UARTDM_MR1_AUTO_RFR_LEVEL1_BMSK;
	data &= ~UARTDM_MR1_AUTO_RFR_LEVEL0_BMSK;
	data |= UARTDM_MR1_AUTO_RFR_LEVEL1_BMSK & (rfr_level << 2);
	data |= UARTDM_MR1_AUTO_RFR_LEVEL0_BMSK & rfr_level;
	msm_hsl_write(port, data, UARTDM_MR1_ADDR);


	/* Make sure IPR is not 0 to start with*/
	msm_hsl_write(port, UARTDM_IPR_STALE_LSB_BMSK, UARTDM_IPR_ADDR);
	data = 0;

	if (!(is_console(port)) || (!port->cons) ||
		(port->cons && (!(port->cons->flags & CON_ENABLED)))) {
		msm_hsl_write(port, CR_PROTECTION_EN, UARTDM_CR_ADDR);
		msm_hsl_write(port, UARTDM_MR2_BITS_PER_CHAR_8 | STOP_BIT_ONE,
			      UARTDM_MR2_ADDR);	/* 8N1 */
		msm_hsl_reset(port);
		data = UARTDM_CR_TX_EN_BMSK;
	}

	data |= UARTDM_CR_RX_EN_BMSK;

	msm_hsl_write(port, data, UARTDM_CR_ADDR);	/* enable TX & RX */

	/* turn on RX and CTS interrupts */
	msm_hsl_port->imr = UARTDM_ISR_RXSTALE_BMSK
		| UARTDM_ISR_DELTA_CTS_BMSK | UARTDM_ISR_RXLEV_BMSK;

	spin_unlock_irqrestore(&port->lock, flags);

	ret = request_irq(port->irq, msm_hsl_irq, IRQF_TRIGGER_HIGH,
			  msm_hsl_port->name, port);
	if (unlikely(ret)) {
		printk(KERN_ERR "%s: failed to request_irq\n", __func__);
		return ret;
	}

	spin_lock_irqsave(&port->lock, flags);
	msm_hsl_write(port, RESET_STALE_INT, UARTDM_CR_ADDR);
	msm_hsl_write(port, 6500, UARTDM_DMRX_ADDR);
	msm_hsl_write(port, STALE_EVENT_ENABLE, UARTDM_CR_ADDR);
	msm_hsl_write(port, msm_hsl_port->imr, UARTDM_IMR_ADDR);
	spin_unlock_irqrestore(&port->lock, flags);

	return 0;
}
static void msm_hsl_set_baud_rate(struct uart_port *port, unsigned int baud)
{
	unsigned int baud_code, rxstale, watermark;
	unsigned int data;
	unsigned int vid;
	struct msm_hsl_port *msm_hsl_port = UART_TO_MSM(port);

	if (port->line == 2) {
		/*D("%s: irda baud is %d,\n", __func__, baud);*/
		if (force_baud_1 == 96)
			baud = 9600;
		else if (force_baud_1 == 1152)
			baud = 115200;
		/*D("%s: irda change_baud is %d,\n", __func__, baud);*/
	}
	D("%s ()baud %d:port->line %d, ir\n", __func__, baud, port->line);
	switch (baud) {
	case 300:
		baud_code = UARTDM_CSR_75;
		rxstale = 1;
		break;
	case 600:
		baud_code = UARTDM_CSR_150;
		rxstale = 1;
		break;
	case 1200:
		baud_code = UARTDM_CSR_300;
		rxstale = 1;
		break;
	case 2400:
		baud_code = UARTDM_CSR_600;
		rxstale = 1;
		break;
	case 4800:
		baud_code = UARTDM_CSR_1200;
		rxstale = 1;
		break;
	case 9600:
		baud_code = UARTDM_CSR_2400;
		rxstale = 2;
		break;
	case 14400:
		baud_code = UARTDM_CSR_3600;
		rxstale = 3;
		break;
	case 19200:
		baud_code = UARTDM_CSR_4800;
		rxstale = 4;
		break;
	case 28800:
		baud_code = UARTDM_CSR_7200;
		rxstale = 6;
		break;
	case 38400:
		baud_code = UARTDM_CSR_9600;
		rxstale = 8;
		break;
	case 57600:
		baud_code = UARTDM_CSR_14400;
		rxstale = 16;
		break;
	case 115200:
		baud_code = UARTDM_CSR_28800;
		rxstale = 31;
		break;
	case 230400:
		baud_code = UARTDM_CSR_57600;
		rxstale = 31;
		break;
	case 460800:
		baud_code = UARTDM_CSR_115200;
		rxstale = 31;
		break;
	default: /* 115200 baud rate */
		baud_code = UARTDM_CSR_28800;
		rxstale = 31;
		break;
	}

	vid = msm_hsl_port->ver_id;
	msm_hsl_write(port, baud_code, regmap[vid][UARTDM_CSR]);

	//if (vid == UARTDM_VERSION_14)
		//rxstale = 5000;

	/* RX stale watermark */
	watermark = UARTDM_IPR_STALE_LSB_BMSK & rxstale;
	watermark |= UARTDM_IPR_STALE_TIMEOUT_MSB_BMSK & (rxstale << 2);
	msm_hsl_write(port, watermark, regmap[vid][UARTDM_IPR]);

	/* Set RX watermark
	 * Configure Rx Watermark as 3/4 size of Rx FIFO.
	 * RFWR register takes value in Words for UARTDM Core
	 * whereas it is consider to be in Bytes for UART Core.
	 * Hence configuring Rx Watermark as 12 Words.
	 */
	watermark = (port->fifosize * 3) / (4*4);
	msm_hsl_write(port, watermark, regmap[vid][UARTDM_RFWR]);

	/* set TX watermark */
	msm_hsl_write(port, 0, regmap[vid][UARTDM_TFWR]);

	msm_hsl_write(port, CR_PROTECTION_EN, regmap[vid][UARTDM_CR]);
	msm_hsl_reset(port);

	data = UARTDM_CR_TX_EN_BMSK;
	data |= UARTDM_CR_RX_EN_BMSK;
	/* enable TX & RX */
	msm_hsl_write(port, data, regmap[vid][UARTDM_CR]);

	msm_hsl_write(port, RESET_STALE_INT, regmap[vid][UARTDM_CR]);
	/* turn on RX and CTS interrupts */
	msm_hsl_port->imr = UARTDM_ISR_RXSTALE_BMSK
		| UARTDM_ISR_DELTA_CTS_BMSK | UARTDM_ISR_RXLEV_BMSK;
	msm_hsl_write(port, msm_hsl_port->imr, regmap[vid][UARTDM_IMR]);
	msm_hsl_write(port, 6500, regmap[vid][UARTDM_DMRX]);
	msm_hsl_write(port, STALE_EVENT_ENABLE, regmap[vid][UARTDM_CR]);
}
Example #10
0
static void msm_hsl_set_baud_rate(struct uart_port *port, unsigned int baud)
{
	unsigned int baud_code, rxstale, watermark;
	unsigned int data;
	unsigned int vid;
	struct msm_hsl_port *msm_hsl_port = UART_TO_MSM(port);

	if (port->line == 2) {
		
		if (force_baud_1 == 96)
			baud = 9600;
		else if (force_baud_1 == 1152)
			baud = 115200;
		
	}
	D("%s ()baud %d:port->line %d, ir\n", __func__, baud, port->line);
	switch (baud) {
	case 300:
		baud_code = UARTDM_CSR_75;
		rxstale = 1;
		break;
	case 600:
		baud_code = UARTDM_CSR_150;
		rxstale = 1;
		break;
	case 1200:
		baud_code = UARTDM_CSR_300;
		rxstale = 1;
		break;
	case 2400:
		baud_code = UARTDM_CSR_600;
		rxstale = 1;
		break;
	case 4800:
		baud_code = UARTDM_CSR_1200;
		rxstale = 1;
		break;
	case 9600:
		baud_code = UARTDM_CSR_2400;
		rxstale = 2;
		break;
	case 14400:
		baud_code = UARTDM_CSR_3600;
		rxstale = 3;
		break;
	case 19200:
		baud_code = UARTDM_CSR_4800;
		rxstale = 4;
		break;
	case 28800:
		baud_code = UARTDM_CSR_7200;
		rxstale = 6;
		break;
	case 38400:
		baud_code = UARTDM_CSR_9600;
		rxstale = 8;
		break;
	case 57600:
		baud_code = UARTDM_CSR_14400;
		rxstale = 16;
		break;
	case 115200:
		baud_code = UARTDM_CSR_28800;
		rxstale = 31;
		break;
	case 230400:
		baud_code = UARTDM_CSR_57600;
		rxstale = 31;
		break;
	case 460800:
		baud_code = UARTDM_CSR_115200;
		rxstale = 31;
		break;
	default: 
		baud_code = UARTDM_CSR_28800;
		rxstale = 31;
		break;
	}

	vid = msm_hsl_port->ver_id;
	msm_hsl_write(port, baud_code, regmap[vid][UARTDM_CSR]);

	
		

	
	watermark = UARTDM_IPR_STALE_LSB_BMSK & rxstale;
	watermark |= UARTDM_IPR_STALE_TIMEOUT_MSB_BMSK & (rxstale << 2);
	msm_hsl_write(port, watermark, regmap[vid][UARTDM_IPR]);

	watermark = (port->fifosize * 3) / (4*4);
	msm_hsl_write(port, watermark, regmap[vid][UARTDM_RFWR]);

	
	msm_hsl_write(port, 0, regmap[vid][UARTDM_TFWR]);

	msm_hsl_write(port, CR_PROTECTION_EN, regmap[vid][UARTDM_CR]);
	msm_hsl_reset(port);

	data = UARTDM_CR_TX_EN_BMSK;
	data |= UARTDM_CR_RX_EN_BMSK;
	
	msm_hsl_write(port, data, regmap[vid][UARTDM_CR]);

	msm_hsl_write(port, RESET_STALE_INT, regmap[vid][UARTDM_CR]);
	
	msm_hsl_port->imr = UARTDM_ISR_RXSTALE_BMSK
		| UARTDM_ISR_DELTA_CTS_BMSK | UARTDM_ISR_RXLEV_BMSK;
	msm_hsl_write(port, msm_hsl_port->imr, regmap[vid][UARTDM_IMR]);
	msm_hsl_write(port, 6500, regmap[vid][UARTDM_DMRX]);
	msm_hsl_write(port, STALE_EVENT_ENABLE, regmap[vid][UARTDM_CR]);
}