Ejemplo n.º 1
0
/*
 * Clear hardware registers after Apps powers up.
 */
static void msm_pm_config_hw_after_power_up(void)
{

	if (cpu_is_msm7x30() || cpu_is_msm8x55()) {
		__raw_writel(0, APPS_SECOP);
		mb();
		__raw_writel(0, APPS_PWRDOWN);
		mb();
		msm_spm_reinit();
	} else if (cpu_is_msm8625()) {
		__raw_writel(0, APPS_PWRDOWN);
		mb();

		if (power_collapsed) {
			/*
			 * enable the SCU while coming out of power
			 * collapse.
			 */
			scu_enable(MSM_SCU_BASE);
			/*
			 * Program the top csr to put the core1 into GDFS.
			 */
			configure_top_csr();
		}
	} else {
		__raw_writel(0, APPS_PWRDOWN);
		mb();
		__raw_writel(0, APPS_CLK_SLEEP_EN);
		mb();
	}
}
Ejemplo n.º 2
0
/*
 * Configure hardware registers in preparation for Apps power down.
 */
static void msm_pm_config_hw_before_power_down(void)
{
	if (cpu_is_msm7x30() || cpu_is_msm8x55()) {
		__raw_writel(4, APPS_SECOP);
	} else if (cpu_is_msm7x27()) {
		__raw_writel(0x1f, APPS_CLK_SLEEP_EN);
	} else if (cpu_is_msm7x27a() || cpu_is_msm7x27aa() ||
		   cpu_is_msm7x25a() || cpu_is_msm7x25aa() ||
		   cpu_is_msm7x25ab()) {
		__raw_writel(0x7, APPS_CLK_SLEEP_EN);
	} else if (cpu_is_qsd8x50()) {
		__raw_writel(0x1f, APPS_CLK_SLEEP_EN);
		mb();
		__raw_writel(0, APPS_STANDBY_CTL);
	}
	mb();
	__raw_writel(1, APPS_PWRDOWN);
	mb();
}
Ejemplo n.º 3
0
static int __init smd_tty_init(void)
{
	int ret;
	int n;
	int idx;

	smd_tty_driver = alloc_tty_driver(MAX_SMD_TTYS);
	if (smd_tty_driver == 0)
		return -ENOMEM;

	smd_tty_driver->owner = THIS_MODULE;
	smd_tty_driver->driver_name = "smd_tty_driver";
	smd_tty_driver->name = "smd";
	smd_tty_driver->major = 0;
	smd_tty_driver->minor_start = 0;
	smd_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
	smd_tty_driver->subtype = SERIAL_TYPE_NORMAL;
	smd_tty_driver->init_termios = tty_std_termios;
	smd_tty_driver->init_termios.c_iflag = 0;
	smd_tty_driver->init_termios.c_oflag = 0;
	smd_tty_driver->init_termios.c_cflag = B38400 | CS8 | CREAD;
	smd_tty_driver->init_termios.c_lflag = 0;
	smd_tty_driver->flags = TTY_DRIVER_RESET_TERMIOS |
		TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
	tty_set_operations(smd_tty_driver, &smd_tty_ops);

	ret = tty_register_driver(smd_tty_driver);
	if (ret) {
		put_tty_driver(smd_tty_driver);
		pr_err("%s: driver registration failed %d\n", __func__, ret);
		return ret;
	}

	for (n = 0; n < ARRAY_SIZE(smd_configs); ++n) {
		idx = smd_configs[n].tty_dev_index;

		if (smd_configs[n].dev_name == NULL)
			smd_configs[n].dev_name = smd_configs[n].port_name;

		if (idx == DS_IDX) {
			/*
			 * DS port uses the kernel API starting with
			 * 8660 Fusion.  Only register the userspace
			 * platform device for older targets.
			 */
			int legacy_ds = 0;

			legacy_ds |= cpu_is_msm7x01() || cpu_is_msm7x25();
			legacy_ds |= cpu_is_msm7x27() || cpu_is_msm7x30();
			legacy_ds |= cpu_is_qsd8x50() || cpu_is_msm8x55();
			/*
			 * use legacy mode for 8660 Standalone (subtype 0)
			 */
			legacy_ds |= cpu_is_msm8x60() &&
					(socinfo_get_platform_subtype() == 0x0);

			if (!legacy_ds)
				continue;
		}

		tty_register_device(smd_tty_driver, idx, 0);
		init_completion(&smd_tty[idx].ch_allocated);

		/* register platform device */
		smd_tty[idx].driver.probe = smd_tty_dummy_probe;
		smd_tty[idx].driver.driver.name = smd_configs[n].dev_name;
		smd_tty[idx].driver.driver.owner = THIS_MODULE;
		spin_lock_init(&smd_tty[idx].reset_lock);
		smd_tty[idx].is_open = 0;
		init_waitqueue_head(&smd_tty[idx].ch_opened_wait_queue);
		ret = platform_driver_register(&smd_tty[idx].driver);

		if (ret) {
			pr_err("%s: init failed %d (%d)\n", __func__, idx, ret);
			smd_tty[idx].driver.probe = NULL;
			goto out;
		}
		smd_tty[idx].smd = &smd_configs[n];
	}
	INIT_DELAYED_WORK(&loopback_work, loopback_probe_worker);
	return 0;

out:
	/* unregister platform devices */
	for (n = 0; n < ARRAY_SIZE(smd_configs); ++n) {
		idx = smd_configs[n].tty_dev_index;

		if (smd_tty[idx].driver.probe) {
			platform_driver_unregister(&smd_tty[idx].driver);
			tty_unregister_device(smd_tty_driver, idx);
		}
	}

	tty_unregister_driver(smd_tty_driver);
	put_tty_driver(smd_tty_driver);
	return ret;
}
Ejemplo n.º 4
0
static int __init smd_tty_init(void)
{
	int ret;
	int n;
	int idx;

	smd_tty_driver = alloc_tty_driver(MAX_SMD_TTYS);
	if (smd_tty_driver == 0)
		return -ENOMEM;

	smd_tty_driver->owner = THIS_MODULE;
	smd_tty_driver->driver_name = "smd_tty_driver";
	smd_tty_driver->name = "smd";
	smd_tty_driver->major = 0;
	smd_tty_driver->minor_start = 0;
	smd_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
	smd_tty_driver->subtype = SERIAL_TYPE_NORMAL;
	smd_tty_driver->init_termios = tty_std_termios;
	smd_tty_driver->init_termios.c_iflag = 0;
	smd_tty_driver->init_termios.c_oflag = 0;
	smd_tty_driver->init_termios.c_cflag = B38400 | CS8 | CREAD;
	smd_tty_driver->init_termios.c_lflag = 0;
	smd_tty_driver->flags = TTY_DRIVER_RESET_TERMIOS |
		TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
	tty_set_operations(smd_tty_driver, &smd_tty_ops);

	ret = tty_register_driver(smd_tty_driver);
	if (ret) {
		put_tty_driver(smd_tty_driver);
		pr_err("%s: driver registration failed %d\n", __func__, ret);
		return ret;
	}

	for (n = 0; n < ARRAY_SIZE(smd_configs); ++n) {
		idx = smd_configs[n].tty_dev_index;

		if (smd_configs[n].dev_name == NULL)
			smd_configs[n].dev_name = smd_configs[n].port_name;

		if (idx == DS_IDX) {
			int legacy_ds = 0;

			legacy_ds |= cpu_is_msm7x01() || cpu_is_msm7x25();
			legacy_ds |= cpu_is_msm7x27() || cpu_is_msm7x30();
			legacy_ds |= cpu_is_qsd8x50() || cpu_is_msm8x55();
			legacy_ds |= (cpu_is_msm8960() || cpu_is_msm8930() || cpu_is_msm8930aa()) && (board_mfg_mode() == 8);
			legacy_ds |= cpu_is_msm8x60() &&
					(socinfo_get_platform_subtype() == 0x0);
			#ifdef CONFIG_MACH_DUMMY
			legacy_ds = 1;
			#endif

			if (!legacy_ds)
				continue;
		}

		tty_register_device(smd_tty_driver, idx, 0);
		init_completion(&smd_tty[idx].ch_allocated);

		
		smd_tty[idx].driver.probe = smd_tty_dummy_probe;
		smd_tty[idx].driver.driver.name = smd_configs[n].dev_name;
		smd_tty[idx].driver.driver.owner = THIS_MODULE;
		spin_lock_init(&smd_tty[idx].reset_lock);
		smd_tty[idx].is_open = 0;
		setup_timer(&smd_tty[idx].buf_req_timer, buf_req_retry,
				(unsigned long)&smd_tty[idx]);
		init_waitqueue_head(&smd_tty[idx].ch_opened_wait_queue);
		ret = platform_driver_register(&smd_tty[idx].driver);

		if (ret) {
			pr_err("%s: init failed %d (%d)\n", __func__, idx, ret);
			smd_tty[idx].driver.probe = NULL;
			goto out;
		}
		smd_tty[idx].smd = &smd_configs[n];
	}
	INIT_DELAYED_WORK(&loopback_work, loopback_probe_worker);
	return 0;

out:
	
	for (n = 0; n < ARRAY_SIZE(smd_configs); ++n) {
		idx = smd_configs[n].tty_dev_index;

		if (smd_tty[idx].driver.probe) {
			platform_driver_unregister(&smd_tty[idx].driver);
			tty_unregister_device(smd_tty_driver, idx);
		}
	}

	tty_unregister_driver(smd_tty_driver);
	put_tty_driver(smd_tty_driver);
	return ret;
}
Ejemplo n.º 5
0
static int __init smd_tty_init(void)
{
	int ret;
	int n;
	int idx;
	struct tty_port *port;

	smd_tty_log_init();
	smd_tty_driver = alloc_tty_driver(MAX_SMD_TTYS);
	if (smd_tty_driver == 0) {
		SMD_TTY_ERR("%s - Driver allocation failed", __func__);
		return -ENOMEM;
	}

	smd_tty_driver->owner = THIS_MODULE;
	smd_tty_driver->driver_name = "smd_tty_driver";
	smd_tty_driver->name = "smd";
	smd_tty_driver->major = 0;
	smd_tty_driver->minor_start = 0;
	smd_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
	smd_tty_driver->subtype = SERIAL_TYPE_NORMAL;
	smd_tty_driver->init_termios = tty_std_termios;
	smd_tty_driver->init_termios.c_iflag = 0;
	smd_tty_driver->init_termios.c_oflag = 0;
	smd_tty_driver->init_termios.c_cflag = B38400 | CS8 | CREAD;
	smd_tty_driver->init_termios.c_lflag = 0;
	smd_tty_driver->flags = TTY_DRIVER_RESET_TERMIOS |
		TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
	tty_set_operations(smd_tty_driver, &smd_tty_ops);

	ret = tty_register_driver(smd_tty_driver);
	if (ret) {
		put_tty_driver(smd_tty_driver);
		SMD_TTY_ERR("%s: driver registration failed %d", __func__, ret);
		return ret;
	}

	for (n = 0; n < ARRAY_SIZE(smd_configs); ++n) {
		idx = smd_configs[n].tty_dev_index;

		if (smd_configs[n].dev_name == NULL)
			smd_configs[n].dev_name = smd_configs[n].port_name;

		if (idx == DS_IDX) {
			/*
			 * DS port uses the kernel API starting with
			 * 8660 Fusion.  Only register the userspace
			 * platform device for older targets.
			 */
			int legacy_ds = 0;

			legacy_ds |= cpu_is_msm7x01() || cpu_is_msm7x25();
			legacy_ds |= cpu_is_msm7x27() || cpu_is_msm7x30();
			legacy_ds |= cpu_is_qsd8x50() || cpu_is_msm8x55();
			/*
			 * use legacy mode for 8660 Standalone (subtype 0)
			 */
			legacy_ds |= cpu_is_msm8x60() &&
					(socinfo_get_platform_subtype() == 0x0);
#ifdef CONFIG_MSM_SMD_TTY_DS_LEGACY
			legacy_ds |= cpu_is_msm8974();
#endif

			if (!legacy_ds)
				continue;
		}

		port = &smd_tty[idx].port;
		tty_port_init(port);
		port->ops = &smd_tty_port_ops;
		/* TODO: For kernel >= 3.7 use tty_port_register_device */
		smd_tty[idx].device_ptr =
			tty_register_device(smd_tty_driver, idx, 0);
		if (device_create_file(smd_tty[idx].device_ptr,
					&dev_attr_open_timeout))
			SMD_TTY_ERR(
				"%s: Unable to create device attributes for %s",
				__func__, smd_configs[n].port_name);

		init_completion(&smd_tty[idx].ch_allocated);

		/* register platform device */
		smd_tty[idx].driver.probe = smd_tty_dummy_probe;
#ifdef CONFIG_MSM_SMD_TTY_DS_LEGACY
		if (idx == DS_IDX) {
			/* register platform device for DS */
			smd_tty[idx].driver.probe = smd_tty_ds_probe;
			smd_tty[idx].is_dsmodem_ready = 0;
		}
#endif
		smd_tty[idx].driver.driver.name = smd_configs[n].dev_name;
		smd_tty[idx].driver.driver.owner = THIS_MODULE;
		spin_lock_init(&smd_tty[idx].reset_lock);
		spin_lock_init(&smd_tty[idx].ra_lock);
		smd_tty[idx].is_open = 0;
		setup_timer(&smd_tty[idx].buf_req_timer, buf_req_retry,
				(unsigned long)&smd_tty[idx]);
		init_waitqueue_head(&smd_tty[idx].ch_opened_wait_queue);
		ret = platform_driver_register(&smd_tty[idx].driver);

		if (ret) {
			SMD_TTY_ERR(
				"%s: init failed %d (%d)", __func__, idx, ret);
			smd_tty[idx].driver.probe = NULL;
			goto out;
		}
		smd_tty[idx].smd = &smd_configs[n];
	}
	INIT_DELAYED_WORK(&loopback_work, loopback_probe_worker);
	return 0;

out:
	/* unregister platform devices */
	for (n = 0; n < ARRAY_SIZE(smd_configs); ++n) {
		idx = smd_configs[n].tty_dev_index;

		if (smd_tty[idx].driver.probe) {
			platform_driver_unregister(&smd_tty[idx].driver);
			tty_unregister_device(smd_tty_driver, idx);
		}
	}

	tty_unregister_driver(smd_tty_driver);
	put_tty_driver(smd_tty_driver);
	return ret;
}