diff mbox

[U-Boot,v2,07/11] drivers: usb: musb: add ti musb peripheral driver with driver model support

Message ID 20160510114816.2899-8-mugunthanvnm@ti.com
State Superseded
Delegated to: Marek Vasut
Headers show

Commit Message

Mugunthan V N May 10, 2016, 11:48 a.m. UTC
Add a TI MUSB peripheral driver with driver model support and the
driver will be bound by the MUSB wrapper driver based on the
dr_mode device tree entry.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
---
 drivers/usb/musb-new/musb_uboot.c |   2 +
 drivers/usb/musb-new/ti-musb.c    | 113 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 115 insertions(+)

Comments

Marek Vasut May 10, 2016, 12:39 p.m. UTC | #1
On 05/10/2016 01:48 PM, Mugunthan V N wrote:
> Add a TI MUSB peripheral driver with driver model support and the
> driver will be bound by the MUSB wrapper driver based on the
> dr_mode device tree entry.
> 
> Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
> ---
>  drivers/usb/musb-new/musb_uboot.c |   2 +
>  drivers/usb/musb-new/ti-musb.c    | 113 ++++++++++++++++++++++++++++++++++++++
>  2 files changed, 115 insertions(+)
> 
> diff --git a/drivers/usb/musb-new/musb_uboot.c b/drivers/usb/musb-new/musb_uboot.c
> index 6ce528c..b03b556 100644
> --- a/drivers/usb/musb-new/musb_uboot.c
> +++ b/drivers/usb/musb-new/musb_uboot.c
> @@ -373,6 +373,7 @@ struct dm_usb_ops musb_usb_ops = {
>  #endif /* CONFIG_DM_USB */
>  #endif /* CONFIG_USB_MUSB_HOST */
>  
> +#ifndef CONFIG_DM_USB
>  #ifdef CONFIG_USB_MUSB_GADGET
>  static struct musb *gadget;
>  
> @@ -453,3 +454,4 @@ int musb_register(struct musb_hdrc_platform_data *plat, void *bdata,
>  
>  	return 0;
>  }
> +#endif /* CONFIG_DM_USB */
> diff --git a/drivers/usb/musb-new/ti-musb.c b/drivers/usb/musb-new/ti-musb.c
> index 1c15aa2..11d10aa 100644
> --- a/drivers/usb/musb-new/ti-musb.c
> +++ b/drivers/usb/musb-new/ti-musb.c
> @@ -14,6 +14,7 @@
>  #include <dm/device-internal.h>
>  #include <dm/lists.h>
>  
> +#include <watchdog.h>
>  #include <asm/io.h>
>  #include <asm/omap_musb.h>
>  #include "musb_uboot.h"
> @@ -142,6 +143,110 @@ static int ti_musb_ofdata_to_platdata(struct udevice *dev)
>  	return 0;
>  }
>  
> +static struct musb *gadget;
> +
> +int usb_gadget_handle_interrupts(int index)
> +{
> +	WATCHDOG_RESET();
> +	if (!gadget || !gadget->isr)
> +		return -EINVAL;
> +
> +	return gadget->isr(0, gadget);
> +}
> +
> +int usb_gadget_register_driver(struct usb_gadget_driver *driver)
> +{
> +	int ret;
> +
> +	if (!driver || driver->speed < USB_SPEED_FULL || !driver->bind ||
> +	    !driver->setup) {
> +		printf("bad parameter.\n");

Sentence usually starts with capital letter and ends with fullstop (not
the case below).

> +		return -EINVAL;
> +	}
> +
> +	if (!gadget) {
> +		printf("Controller uninitialized\n");
> +		return -ENXIO;
> +	}
> +
> +	ret = musb_gadget_start(&gadget->g, driver);
> +	if (ret < 0) {
> +		printf("gadget_start failed with %d\n", ret);
> +		return ret;
> +	}
> +
> +	ret = driver->bind(&gadget->g);
> +	if (ret < 0) {
> +		printf("bind failed with %d\n", ret);

Are all these prints really useful ?

> +		return ret;
> +	}
> +
> +	return 0;
> +}
> +
> +int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
> +{
> +	if (driver->disconnect)
> +		driver->disconnect(&gadget->g);
> +	if (driver->unbind)
> +		driver->unbind(&gadget->g);
> +	return 0;
> +}
> +
> +static int ti_musb_peripheral_usb_probe(struct udevice *dev)
> +{
> +	struct ti_musb_platdata *platdata = dev_get_platdata(dev);
> +	struct usb_bus_priv *priv = dev_get_uclass_priv(dev);
> +	struct omap_musb_board_data *otg_board_data;
> +
> +	otg_board_data = &platdata->otg_board_data;
> +
> +	gadget = musb_init_controller(&platdata->plat,
> +				      (struct device *)otg_board_data,
> +				      platdata->base);
> +	if (!gadget) {
> +		error("gadget init failed\n");
> +		return -EIO;
> +	}
> +
> +	return 0;
> +}
> +
> +static int ti_musb_peripheral_remove(struct udevice *dev)
> +{
> +	musb_stop(gadget);
> +
> +	return 0;
> +}
> +
> +static int ti_musb_peripheral_ofdata_to_platdata(struct udevice *dev)
> +{
> +	struct ti_musb_platdata *platdata = dev_get_platdata(dev);
> +	const void *fdt = gd->fdt_blob;
> +	int node = dev->of_offset;
> +	int ret;
> +
> +	ret = ti_musb_ofdata_to_platdata(dev);
> +	if (ret) {
> +		error("platdata dt parse error\n");
> +		return ret;
> +	}
> +
> +	platdata->plat.mode = MUSB_PERIPHERAL;
> +
> +	return 0;
> +}
> +
> +U_BOOT_DRIVER(ti_musb_peripheral) = {
> +	.name	= "ti-musb-peripheral",
> +	.id	= UCLASS_USB_DEV_GENERIC,
> +	.ofdata_to_platdata = ti_musb_peripheral_ofdata_to_platdata,
> +	.probe = ti_musb_peripheral_usb_probe,
> +	.remove = ti_musb_peripheral_remove,
> +	.platdata_auto_alloc_size = sizeof(struct ti_musb_platdata),
> +	.priv_auto_alloc_size = sizeof(struct musb),
> +};
> +
>  static int ti_musb_host_probe(struct udevice *dev)
>  {
>  	struct musb_host_data *host = dev_get_priv(dev);
> @@ -222,7 +327,15 @@ static int ti_musb_wrapper_bind(struct udevice *parent)
>  		dr_mode = usb_get_dr_mode(node);
>  		switch (dr_mode) {
>  		case USB_DR_MODE_PERIPHERAL:
> +		case USB_DR_MODE_OTG:
>  			/* Bind MUSB device */
> +			ret = device_bind_driver_to_node(parent,
> +							 "ti-musb-peripheral",
> +							 name, node, &dev);
> +			if (ret) {
> +				error("musb - not able to bind usb device node\n");
> +				return ret;
> +			}
>  			break;
>  		case USB_DR_MODE_HOST:
>  			/* Bind MUSB host */
>
Mugunthan V N May 12, 2016, 5:49 a.m. UTC | #2
On Tuesday 10 May 2016 06:09 PM, Marek Vasut wrote:
> On 05/10/2016 01:48 PM, Mugunthan V N wrote:
>> Add a TI MUSB peripheral driver with driver model support and the
>> driver will be bound by the MUSB wrapper driver based on the
>> dr_mode device tree entry.
>>
>> Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
>> ---
>>  drivers/usb/musb-new/musb_uboot.c |   2 +
>>  drivers/usb/musb-new/ti-musb.c    | 113 ++++++++++++++++++++++++++++++++++++++
>>  2 files changed, 115 insertions(+)
>>
>> diff --git a/drivers/usb/musb-new/musb_uboot.c b/drivers/usb/musb-new/musb_uboot.c
>> index 6ce528c..b03b556 100644
>> --- a/drivers/usb/musb-new/musb_uboot.c
>> +++ b/drivers/usb/musb-new/musb_uboot.c
>> @@ -373,6 +373,7 @@ struct dm_usb_ops musb_usb_ops = {
>>  #endif /* CONFIG_DM_USB */
>>  #endif /* CONFIG_USB_MUSB_HOST */
>>  
>> +#ifndef CONFIG_DM_USB
>>  #ifdef CONFIG_USB_MUSB_GADGET
>>  static struct musb *gadget;
>>  
>> @@ -453,3 +454,4 @@ int musb_register(struct musb_hdrc_platform_data *plat, void *bdata,
>>  
>>  	return 0;
>>  }
>> +#endif /* CONFIG_DM_USB */
>> diff --git a/drivers/usb/musb-new/ti-musb.c b/drivers/usb/musb-new/ti-musb.c
>> index 1c15aa2..11d10aa 100644
>> --- a/drivers/usb/musb-new/ti-musb.c
>> +++ b/drivers/usb/musb-new/ti-musb.c
>> @@ -14,6 +14,7 @@
>>  #include <dm/device-internal.h>
>>  #include <dm/lists.h>
>>  
>> +#include <watchdog.h>
>>  #include <asm/io.h>
>>  #include <asm/omap_musb.h>
>>  #include "musb_uboot.h"
>> @@ -142,6 +143,110 @@ static int ti_musb_ofdata_to_platdata(struct udevice *dev)
>>  	return 0;
>>  }
>>  
>> +static struct musb *gadget;
>> +
>> +int usb_gadget_handle_interrupts(int index)
>> +{
>> +	WATCHDOG_RESET();
>> +	if (!gadget || !gadget->isr)
>> +		return -EINVAL;
>> +
>> +	return gadget->isr(0, gadget);
>> +}
>> +
>> +int usb_gadget_register_driver(struct usb_gadget_driver *driver)
>> +{
>> +	int ret;
>> +
>> +	if (!driver || driver->speed < USB_SPEED_FULL || !driver->bind ||
>> +	    !driver->setup) {
>> +		printf("bad parameter.\n");
> 
> Sentence usually starts with capital letter and ends with fullstop (not
> the case below).
> 
>> +		return -EINVAL;
>> +	}
>> +
>> +	if (!gadget) {
>> +		printf("Controller uninitialized\n");
>> +		return -ENXIO;
>> +	}
>> +
>> +	ret = musb_gadget_start(&gadget->g, driver);
>> +	if (ret < 0) {
>> +		printf("gadget_start failed with %d\n", ret);
>> +		return ret;
>> +	}
>> +
>> +	ret = driver->bind(&gadget->g);
>> +	if (ret < 0) {
>> +		printf("bind failed with %d\n", ret);
> 
> Are all these prints really useful ?

This function is just a carry forward from non-DM driver, will have a
look to remove irrelevant logs.

Regards
Mugunthan V N

> 
>> +		return ret;
>> +	}
>> +
>> +	return 0;
>> +}
>> +
>> +int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
>> +{
>> +	if (driver->disconnect)
>> +		driver->disconnect(&gadget->g);
>> +	if (driver->unbind)
>> +		driver->unbind(&gadget->g);
>> +	return 0;
>> +}
>> +
>> +static int ti_musb_peripheral_usb_probe(struct udevice *dev)
>> +{
>> +	struct ti_musb_platdata *platdata = dev_get_platdata(dev);
>> +	struct usb_bus_priv *priv = dev_get_uclass_priv(dev);
>> +	struct omap_musb_board_data *otg_board_data;
>> +
>> +	otg_board_data = &platdata->otg_board_data;
>> +
>> +	gadget = musb_init_controller(&platdata->plat,
>> +				      (struct device *)otg_board_data,
>> +				      platdata->base);
>> +	if (!gadget) {
>> +		error("gadget init failed\n");
>> +		return -EIO;
>> +	}
>> +
>> +	return 0;
>> +}
>> +
>> +static int ti_musb_peripheral_remove(struct udevice *dev)
>> +{
>> +	musb_stop(gadget);
>> +
>> +	return 0;
>> +}
>> +
>> +static int ti_musb_peripheral_ofdata_to_platdata(struct udevice *dev)
>> +{
>> +	struct ti_musb_platdata *platdata = dev_get_platdata(dev);
>> +	const void *fdt = gd->fdt_blob;
>> +	int node = dev->of_offset;
>> +	int ret;
>> +
>> +	ret = ti_musb_ofdata_to_platdata(dev);
>> +	if (ret) {
>> +		error("platdata dt parse error\n");
>> +		return ret;
>> +	}
>> +
>> +	platdata->plat.mode = MUSB_PERIPHERAL;
>> +
>> +	return 0;
>> +}
>> +
>> +U_BOOT_DRIVER(ti_musb_peripheral) = {
>> +	.name	= "ti-musb-peripheral",
>> +	.id	= UCLASS_USB_DEV_GENERIC,
>> +	.ofdata_to_platdata = ti_musb_peripheral_ofdata_to_platdata,
>> +	.probe = ti_musb_peripheral_usb_probe,
>> +	.remove = ti_musb_peripheral_remove,
>> +	.platdata_auto_alloc_size = sizeof(struct ti_musb_platdata),
>> +	.priv_auto_alloc_size = sizeof(struct musb),
>> +};
>> +
>>  static int ti_musb_host_probe(struct udevice *dev)
>>  {
>>  	struct musb_host_data *host = dev_get_priv(dev);
>> @@ -222,7 +327,15 @@ static int ti_musb_wrapper_bind(struct udevice *parent)
>>  		dr_mode = usb_get_dr_mode(node);
>>  		switch (dr_mode) {
>>  		case USB_DR_MODE_PERIPHERAL:
>> +		case USB_DR_MODE_OTG:
>>  			/* Bind MUSB device */
>> +			ret = device_bind_driver_to_node(parent,
>> +							 "ti-musb-peripheral",
>> +							 name, node, &dev);
>> +			if (ret) {
>> +				error("musb - not able to bind usb device node\n");
>> +				return ret;
>> +			}
>>  			break;
>>  		case USB_DR_MODE_HOST:
>>  			/* Bind MUSB host */
>>
> 
>
Simon Glass May 19, 2016, 4 a.m. UTC | #3
On 11 May 2016 at 23:49, Mugunthan V N <mugunthanvnm@ti.com> wrote:
> On Tuesday 10 May 2016 06:09 PM, Marek Vasut wrote:
>> On 05/10/2016 01:48 PM, Mugunthan V N wrote:
>>> Add a TI MUSB peripheral driver with driver model support and the
>>> driver will be bound by the MUSB wrapper driver based on the
>>> dr_mode device tree entry.
>>>
>>> Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
>>> ---
>>>  drivers/usb/musb-new/musb_uboot.c |   2 +
>>>  drivers/usb/musb-new/ti-musb.c    | 113 ++++++++++++++++++++++++++++++++++++++
>>>  2 files changed, 115 insertions(+)

Reviewed-by: Simon Glass <sjg@chromium.org>
diff mbox

Patch

diff --git a/drivers/usb/musb-new/musb_uboot.c b/drivers/usb/musb-new/musb_uboot.c
index 6ce528c..b03b556 100644
--- a/drivers/usb/musb-new/musb_uboot.c
+++ b/drivers/usb/musb-new/musb_uboot.c
@@ -373,6 +373,7 @@  struct dm_usb_ops musb_usb_ops = {
 #endif /* CONFIG_DM_USB */
 #endif /* CONFIG_USB_MUSB_HOST */
 
+#ifndef CONFIG_DM_USB
 #ifdef CONFIG_USB_MUSB_GADGET
 static struct musb *gadget;
 
@@ -453,3 +454,4 @@  int musb_register(struct musb_hdrc_platform_data *plat, void *bdata,
 
 	return 0;
 }
+#endif /* CONFIG_DM_USB */
diff --git a/drivers/usb/musb-new/ti-musb.c b/drivers/usb/musb-new/ti-musb.c
index 1c15aa2..11d10aa 100644
--- a/drivers/usb/musb-new/ti-musb.c
+++ b/drivers/usb/musb-new/ti-musb.c
@@ -14,6 +14,7 @@ 
 #include <dm/device-internal.h>
 #include <dm/lists.h>
 
+#include <watchdog.h>
 #include <asm/io.h>
 #include <asm/omap_musb.h>
 #include "musb_uboot.h"
@@ -142,6 +143,110 @@  static int ti_musb_ofdata_to_platdata(struct udevice *dev)
 	return 0;
 }
 
+static struct musb *gadget;
+
+int usb_gadget_handle_interrupts(int index)
+{
+	WATCHDOG_RESET();
+	if (!gadget || !gadget->isr)
+		return -EINVAL;
+
+	return gadget->isr(0, gadget);
+}
+
+int usb_gadget_register_driver(struct usb_gadget_driver *driver)
+{
+	int ret;
+
+	if (!driver || driver->speed < USB_SPEED_FULL || !driver->bind ||
+	    !driver->setup) {
+		printf("bad parameter.\n");
+		return -EINVAL;
+	}
+
+	if (!gadget) {
+		printf("Controller uninitialized\n");
+		return -ENXIO;
+	}
+
+	ret = musb_gadget_start(&gadget->g, driver);
+	if (ret < 0) {
+		printf("gadget_start failed with %d\n", ret);
+		return ret;
+	}
+
+	ret = driver->bind(&gadget->g);
+	if (ret < 0) {
+		printf("bind failed with %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
+{
+	if (driver->disconnect)
+		driver->disconnect(&gadget->g);
+	if (driver->unbind)
+		driver->unbind(&gadget->g);
+	return 0;
+}
+
+static int ti_musb_peripheral_usb_probe(struct udevice *dev)
+{
+	struct ti_musb_platdata *platdata = dev_get_platdata(dev);
+	struct usb_bus_priv *priv = dev_get_uclass_priv(dev);
+	struct omap_musb_board_data *otg_board_data;
+
+	otg_board_data = &platdata->otg_board_data;
+
+	gadget = musb_init_controller(&platdata->plat,
+				      (struct device *)otg_board_data,
+				      platdata->base);
+	if (!gadget) {
+		error("gadget init failed\n");
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int ti_musb_peripheral_remove(struct udevice *dev)
+{
+	musb_stop(gadget);
+
+	return 0;
+}
+
+static int ti_musb_peripheral_ofdata_to_platdata(struct udevice *dev)
+{
+	struct ti_musb_platdata *platdata = dev_get_platdata(dev);
+	const void *fdt = gd->fdt_blob;
+	int node = dev->of_offset;
+	int ret;
+
+	ret = ti_musb_ofdata_to_platdata(dev);
+	if (ret) {
+		error("platdata dt parse error\n");
+		return ret;
+	}
+
+	platdata->plat.mode = MUSB_PERIPHERAL;
+
+	return 0;
+}
+
+U_BOOT_DRIVER(ti_musb_peripheral) = {
+	.name	= "ti-musb-peripheral",
+	.id	= UCLASS_USB_DEV_GENERIC,
+	.ofdata_to_platdata = ti_musb_peripheral_ofdata_to_platdata,
+	.probe = ti_musb_peripheral_usb_probe,
+	.remove = ti_musb_peripheral_remove,
+	.platdata_auto_alloc_size = sizeof(struct ti_musb_platdata),
+	.priv_auto_alloc_size = sizeof(struct musb),
+};
+
 static int ti_musb_host_probe(struct udevice *dev)
 {
 	struct musb_host_data *host = dev_get_priv(dev);
@@ -222,7 +327,15 @@  static int ti_musb_wrapper_bind(struct udevice *parent)
 		dr_mode = usb_get_dr_mode(node);
 		switch (dr_mode) {
 		case USB_DR_MODE_PERIPHERAL:
+		case USB_DR_MODE_OTG:
 			/* Bind MUSB device */
+			ret = device_bind_driver_to_node(parent,
+							 "ti-musb-peripheral",
+							 name, node, &dev);
+			if (ret) {
+				error("musb - not able to bind usb device node\n");
+				return ret;
+			}
 			break;
 		case USB_DR_MODE_HOST:
 			/* Bind MUSB host */