C++ (Cpp) cpu_is_at91sam9rl Examples

Example #1

File: at91_mci.c Project: DirtyDroidX/android_kernel_htc_m8ul

static inline int at91mci_is_mci1rev2xx(void)
{
	return (   cpu_is_at91sam9260()
		|| cpu_is_at91sam9263()
		|| cpu_is_at91sam9rl()
		|| cpu_is_at91sam9g10()
		|| cpu_is_at91sam9g20()
		);
}

Example #2

File: atmel_tsadcc.c Project: CSCLOG/beaglebone

static int __devinit atmel_tsadcc_probe(struct platform_device *pdev)
{
	struct atmel_tsadcc	*ts_dev;
	struct input_dev	*input_dev;
	struct resource		*res;
	struct at91_tsadcc_data *pdata = pdev->dev.platform_data;
	int		err = 0;
	unsigned int	prsc;
	unsigned int	reg;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!res) {
		dev_err(&pdev->dev, "no mmio resource defined.\n");
		return -ENXIO;
	}

	/* Allocate memory for device */
	ts_dev = kzalloc(sizeof(struct atmel_tsadcc), GFP_KERNEL);
	if (!ts_dev) {
		dev_err(&pdev->dev, "failed to allocate memory.\n");
		return -ENOMEM;
	}
	platform_set_drvdata(pdev, ts_dev);

	input_dev = input_allocate_device();
	if (!input_dev) {
		dev_err(&pdev->dev, "failed to allocate input device.\n");
		err = -EBUSY;
		goto err_free_mem;
	}

	ts_dev->irq = platform_get_irq(pdev, 0);
	if (ts_dev->irq < 0) {
		dev_err(&pdev->dev, "no irq ID is designated.\n");
		err = -ENODEV;
		goto err_free_dev;
	}

	if (!request_mem_region(res->start, resource_size(res),
				"atmel tsadcc regs")) {
		dev_err(&pdev->dev, "resources is unavailable.\n");
		err = -EBUSY;
		goto err_free_dev;
	}

	tsc_base = ioremap(res->start, resource_size(res));
	if (!tsc_base) {
		dev_err(&pdev->dev, "failed to map registers.\n");
		err = -ENOMEM;
		goto err_release_mem;
	}

	err = request_irq(ts_dev->irq, atmel_tsadcc_interrupt, IRQF_DISABLED,
			pdev->dev.driver->name, ts_dev);
	if (err) {
		dev_err(&pdev->dev, "failed to allocate irq.\n");
		goto err_unmap_regs;
	}

	ts_dev->clk = clk_get(&pdev->dev, "tsc_clk");
	if (IS_ERR(ts_dev->clk)) {
		dev_err(&pdev->dev, "failed to get ts_clk\n");
		err = PTR_ERR(ts_dev->clk);
		goto err_free_irq;
	}

	ts_dev->input = input_dev;
	ts_dev->bufferedmeasure = 0;

	snprintf(ts_dev->phys, sizeof(ts_dev->phys),
		 "%s/input0", dev_name(&pdev->dev));

	input_dev->name = "atmel touch screen controller";
	input_dev->phys = ts_dev->phys;
	input_dev->dev.parent = &pdev->dev;

	__set_bit(EV_ABS, input_dev->evbit);
	input_set_abs_params(input_dev, ABS_X, 0, 0x3FF, 0, 0);
	input_set_abs_params(input_dev, ABS_Y, 0, 0x3FF, 0, 0);

	input_set_capability(input_dev, EV_KEY, BTN_TOUCH);

	/* clk_enable() always returns 0, no need to check it */
	clk_enable(ts_dev->clk);

	prsc = clk_get_rate(ts_dev->clk);
	dev_info(&pdev->dev, "Master clock is set at: %d Hz\n", prsc);

	if (!pdata)
		goto err_fail;

	if (!pdata->adc_clock)
		pdata->adc_clock = ADC_DEFAULT_CLOCK;

	prsc = (prsc / (2 * pdata->adc_clock)) - 1;

	/* saturate if this value is too high */
	if (cpu_is_at91sam9rl()) {
		if (prsc > PRESCALER_VAL(ATMEL_TSADCC_PRESCAL))
			prsc = PRESCALER_VAL(ATMEL_TSADCC_PRESCAL);
	} else {
		if (prsc > PRESCALER_VAL(ATMEL_TSADCC_EPRESCAL))
			prsc = PRESCALER_VAL(ATMEL_TSADCC_EPRESCAL);
	}

	dev_info(&pdev->dev, "Prescaler is set at: %d\n", prsc);

	reg = ATMEL_TSADCC_TSAMOD_TS_ONLY_MODE		|
		((0x00 << 5) & ATMEL_TSADCC_SLEEP)	|	/* Normal Mode */
		((0x01 << 6) & ATMEL_TSADCC_PENDET)	|	/* Enable Pen Detect */
		(prsc << 8)				|
		((0x26 << 16) & ATMEL_TSADCC_STARTUP)	|
		((pdata->pendet_debounce << 28) & ATMEL_TSADCC_PENDBC);

	atmel_tsadcc_write(ATMEL_TSADCC_CR, ATMEL_TSADCC_SWRST);
	atmel_tsadcc_write(ATMEL_TSADCC_MR, reg);
	atmel_tsadcc_write(ATMEL_TSADCC_TRGR, ATMEL_TSADCC_TRGMOD_NONE);
	atmel_tsadcc_write(ATMEL_TSADCC_TSR,
		(pdata->ts_sample_hold_time << 24) & ATMEL_TSADCC_TSSHTIM);

	atmel_tsadcc_read(ATMEL_TSADCC_SR);
	atmel_tsadcc_write(ATMEL_TSADCC_IER, ATMEL_TSADCC_PENCNT);

	/* All went ok, so register to the input system */
	err = input_register_device(input_dev);
	if (err)
		goto err_fail;

	return 0;

err_fail:
	clk_disable(ts_dev->clk);
	clk_put(ts_dev->clk);
err_free_irq:
	free_irq(ts_dev->irq, ts_dev);
err_unmap_regs:
	iounmap(tsc_base);
err_release_mem:
	release_mem_region(res->start, resource_size(res));
err_free_dev:
	input_free_device(input_dev);
err_free_mem:
	kfree(ts_dev);
	return err;
}