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path: root/drivers/usb/chipidea/core.c
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Diffstat (limited to 'drivers/usb/chipidea/core.c')
-rw-r--r--drivers/usb/chipidea/core.c112
1 files changed, 86 insertions, 26 deletions
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 49b098bedf9b..a5df24c578fc 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -43,8 +43,7 @@
*
* TODO List
* - OTG
- * - Isochronous & Interrupt Traffic
- * - Handle requests which spawns into several TDs
+ * - Interrupt Traffic
* - GET_STATUS(device) - always reports 0
* - Gadget API (majority of optional features)
* - Suspend & Remote Wakeup
@@ -64,6 +63,8 @@
#include <linux/usb/gadget.h>
#include <linux/usb/otg.h>
#include <linux/usb/chipidea.h>
+#include <linux/usb/of.h>
+#include <linux/phy.h>
#include "ci.h"
#include "udc.h"
@@ -116,7 +117,7 @@ static uintptr_t ci_regs_lpm[] = {
[OP_ENDPTCTRL] = 0x0ECUL,
};
-static int hw_alloc_regmap(struct ci13xxx *ci, bool is_lpm)
+static int hw_alloc_regmap(struct ci_hdrc *ci, bool is_lpm)
{
int i;
@@ -148,7 +149,7 @@ static int hw_alloc_regmap(struct ci13xxx *ci, bool is_lpm)
*
* This function returns an error code
*/
-int hw_port_test_set(struct ci13xxx *ci, u8 mode)
+int hw_port_test_set(struct ci_hdrc *ci, u8 mode)
{
const u8 TEST_MODE_MAX = 7;
@@ -164,12 +165,12 @@ int hw_port_test_set(struct ci13xxx *ci, u8 mode)
*
* This function returns port test mode value
*/
-u8 hw_port_test_get(struct ci13xxx *ci)
+u8 hw_port_test_get(struct ci_hdrc *ci)
{
return hw_read(ci, OP_PORTSC, PORTSC_PTC) >> __ffs(PORTSC_PTC);
}
-static int hw_device_init(struct ci13xxx *ci, void __iomem *base)
+static int hw_device_init(struct ci_hdrc *ci, void __iomem *base)
{
u32 reg;
@@ -208,13 +209,52 @@ static int hw_device_init(struct ci13xxx *ci, void __iomem *base)
return 0;
}
+static void hw_phymode_configure(struct ci_hdrc *ci)
+{
+ u32 portsc, lpm, sts;
+
+ switch (ci->platdata->phy_mode) {
+ case USBPHY_INTERFACE_MODE_UTMI:
+ portsc = PORTSC_PTS(PTS_UTMI);
+ lpm = DEVLC_PTS(PTS_UTMI);
+ break;
+ case USBPHY_INTERFACE_MODE_UTMIW:
+ portsc = PORTSC_PTS(PTS_UTMI) | PORTSC_PTW;
+ lpm = DEVLC_PTS(PTS_UTMI) | DEVLC_PTW;
+ break;
+ case USBPHY_INTERFACE_MODE_ULPI:
+ portsc = PORTSC_PTS(PTS_ULPI);
+ lpm = DEVLC_PTS(PTS_ULPI);
+ break;
+ case USBPHY_INTERFACE_MODE_SERIAL:
+ portsc = PORTSC_PTS(PTS_SERIAL);
+ lpm = DEVLC_PTS(PTS_SERIAL);
+ sts = 1;
+ break;
+ case USBPHY_INTERFACE_MODE_HSIC:
+ portsc = PORTSC_PTS(PTS_HSIC);
+ lpm = DEVLC_PTS(PTS_HSIC);
+ break;
+ default:
+ return;
+ }
+
+ if (ci->hw_bank.lpm) {
+ hw_write(ci, OP_DEVLC, DEVLC_PTS(7) | DEVLC_PTW, lpm);
+ hw_write(ci, OP_DEVLC, DEVLC_STS, sts);
+ } else {
+ hw_write(ci, OP_PORTSC, PORTSC_PTS(7) | PORTSC_PTW, portsc);
+ hw_write(ci, OP_PORTSC, PORTSC_STS, sts);
+ }
+}
+
/**
* hw_device_reset: resets chip (execute without interruption)
* @ci: the controller
*
* This function returns an error code
*/
-int hw_device_reset(struct ci13xxx *ci, u32 mode)
+int hw_device_reset(struct ci_hdrc *ci, u32 mode)
{
/* should flush & stop before reset */
hw_write(ci, OP_ENDPTFLUSH, ~0, ~0);
@@ -224,12 +264,13 @@ int hw_device_reset(struct ci13xxx *ci, u32 mode)
while (hw_read(ci, OP_USBCMD, USBCMD_RST))
udelay(10); /* not RTOS friendly */
+ hw_phymode_configure(ci);
if (ci->platdata->notify_event)
ci->platdata->notify_event(ci,
- CI13XXX_CONTROLLER_RESET_EVENT);
+ CI_HDRC_CONTROLLER_RESET_EVENT);
- if (ci->platdata->flags & CI13XXX_DISABLE_STREAMING)
+ if (ci->platdata->flags & CI_HDRC_DISABLE_STREAMING)
hw_write(ci, OP_USBMODE, USBMODE_CI_SDIS, USBMODE_CI_SDIS);
/* USBMODE should be configured step by step */
@@ -251,7 +292,7 @@ int hw_device_reset(struct ci13xxx *ci, u32 mode)
* ci_otg_role - pick role based on ID pin state
* @ci: the controller
*/
-static enum ci_role ci_otg_role(struct ci13xxx *ci)
+static enum ci_role ci_otg_role(struct ci_hdrc *ci)
{
u32 sts = hw_read(ci, OP_OTGSC, ~0);
enum ci_role role = sts & OTGSC_ID
@@ -267,7 +308,7 @@ static enum ci_role ci_otg_role(struct ci13xxx *ci)
*/
static void ci_role_work(struct work_struct *work)
{
- struct ci13xxx *ci = container_of(work, struct ci13xxx, work);
+ struct ci_hdrc *ci = container_of(work, struct ci_hdrc, work);
enum ci_role role = ci_otg_role(ci);
if (role != ci->role) {
@@ -276,13 +317,14 @@ static void ci_role_work(struct work_struct *work)
ci_role_stop(ci);
ci_role_start(ci, role);
- enable_irq(ci->irq);
}
+
+ enable_irq(ci->irq);
}
static irqreturn_t ci_irq(int irq, void *data)
{
- struct ci13xxx *ci = data;
+ struct ci_hdrc *ci = data;
irqreturn_t ret = IRQ_NONE;
u32 otgsc = 0;
@@ -304,9 +346,9 @@ static irqreturn_t ci_irq(int irq, void *data)
static DEFINE_IDA(ci_ida);
-struct platform_device *ci13xxx_add_device(struct device *dev,
+struct platform_device *ci_hdrc_add_device(struct device *dev,
struct resource *res, int nres,
- struct ci13xxx_platform_data *platdata)
+ struct ci_hdrc_platform_data *platdata)
{
struct platform_device *pdev;
int id, ret;
@@ -346,29 +388,33 @@ put_id:
ida_simple_remove(&ci_ida, id);
return ERR_PTR(ret);
}
-EXPORT_SYMBOL_GPL(ci13xxx_add_device);
+EXPORT_SYMBOL_GPL(ci_hdrc_add_device);
-void ci13xxx_remove_device(struct platform_device *pdev)
+void ci_hdrc_remove_device(struct platform_device *pdev)
{
int id = pdev->id;
platform_device_unregister(pdev);
ida_simple_remove(&ci_ida, id);
}
-EXPORT_SYMBOL_GPL(ci13xxx_remove_device);
+EXPORT_SYMBOL_GPL(ci_hdrc_remove_device);
static int ci_hdrc_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
- struct ci13xxx *ci;
+ struct ci_hdrc *ci;
struct resource *res;
void __iomem *base;
int ret;
+ enum usb_dr_mode dr_mode;
if (!dev->platform_data) {
dev_err(dev, "platform data missing\n");
return -ENODEV;
}
+ if (!dev->of_node && dev->parent)
+ dev->of_node = dev->parent->of_node;
+
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
base = devm_ioremap_resource(dev, res);
if (IS_ERR(base))
@@ -408,14 +454,28 @@ static int ci_hdrc_probe(struct platform_device *pdev)
return -ENODEV;
}
+ if (!ci->platdata->phy_mode)
+ ci->platdata->phy_mode = of_usb_get_phy_mode(dev->of_node);
+
+ if (!ci->platdata->dr_mode)
+ ci->platdata->dr_mode = of_usb_get_dr_mode(dev->of_node);
+
+ if (ci->platdata->dr_mode == USB_DR_MODE_UNKNOWN)
+ ci->platdata->dr_mode = USB_DR_MODE_OTG;
+
+ dr_mode = ci->platdata->dr_mode;
/* initialize role(s) before the interrupt is requested */
- ret = ci_hdrc_host_init(ci);
- if (ret)
- dev_info(dev, "doesn't support host\n");
+ if (dr_mode == USB_DR_MODE_OTG || dr_mode == USB_DR_MODE_HOST) {
+ ret = ci_hdrc_host_init(ci);
+ if (ret)
+ dev_info(dev, "doesn't support host\n");
+ }
- ret = ci_hdrc_gadget_init(ci);
- if (ret)
- dev_info(dev, "doesn't support gadget\n");
+ if (dr_mode == USB_DR_MODE_OTG || dr_mode == USB_DR_MODE_PERIPHERAL) {
+ ret = ci_hdrc_gadget_init(ci);
+ if (ret)
+ dev_info(dev, "doesn't support gadget\n");
+ }
if (!ci->roles[CI_ROLE_HOST] && !ci->roles[CI_ROLE_GADGET]) {
dev_err(dev, "no supported roles\n");
@@ -466,7 +526,7 @@ rm_wq:
static int ci_hdrc_remove(struct platform_device *pdev)
{
- struct ci13xxx *ci = platform_get_drvdata(pdev);
+ struct ci_hdrc *ci = platform_get_drvdata(pdev);
dbg_remove_files(ci);
flush_workqueue(ci->wq);
generated by cgit v1.2.3 (git 2.0.4) at 2024-06-04 08:59:32 +0000