usb: factor out state_string() on otg drivers
Provide common otg_state_string() and use it in drivers. Signed-off-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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67e7d64bce
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3dacdf11f1
4 changed files with 42 additions and 60 deletions
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@ -234,29 +234,9 @@ isp1301_clear_bits(struct isp1301 *isp, u8 reg, u8 bits)
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/*-------------------------------------------------------------------------*/
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static const char *state_string(enum usb_otg_state state)
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{
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switch (state) {
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case OTG_STATE_A_IDLE: return "a_idle";
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case OTG_STATE_A_WAIT_VRISE: return "a_wait_vrise";
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case OTG_STATE_A_WAIT_BCON: return "a_wait_bcon";
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case OTG_STATE_A_HOST: return "a_host";
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case OTG_STATE_A_SUSPEND: return "a_suspend";
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case OTG_STATE_A_PERIPHERAL: return "a_peripheral";
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case OTG_STATE_A_WAIT_VFALL: return "a_wait_vfall";
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case OTG_STATE_A_VBUS_ERR: return "a_vbus_err";
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case OTG_STATE_B_IDLE: return "b_idle";
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case OTG_STATE_B_SRP_INIT: return "b_srp_init";
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case OTG_STATE_B_PERIPHERAL: return "b_peripheral";
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case OTG_STATE_B_WAIT_ACON: return "b_wait_acon";
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case OTG_STATE_B_HOST: return "b_host";
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default: return "UNDEFINED";
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}
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}
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static inline const char *state_name(struct isp1301 *isp)
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{
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return state_string(isp->otg.state);
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return otg_state_string(isp->otg.state);
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}
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/*-------------------------------------------------------------------------*/
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@ -501,7 +481,7 @@ static void check_state(struct isp1301 *isp, const char *tag)
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if (isp->otg.state == state && !extra)
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return;
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pr_debug("otg: %s FSM %s/%02x, %s, %06x\n", tag,
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state_string(state), fsm, state_name(isp),
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otg_state_string(state), fsm, state_name(isp),
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omap_readl(OTG_CTRL));
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}
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@ -1095,7 +1075,7 @@ static void isp_update_otg(struct isp1301 *isp, u8 stat)
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if (state != isp->otg.state)
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pr_debug(" isp, %s -> %s\n",
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state_string(state), state_name(isp));
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otg_state_string(state), state_name(isp));
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#ifdef CONFIG_USB_OTG
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/* update the OTG controller state to match the isp1301; may
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@ -82,40 +82,6 @@ static struct pci_driver otg_pci_driver = {
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.resume = langwell_otg_resume,
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};
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static const char *state_string(enum usb_otg_state state)
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{
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switch (state) {
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case OTG_STATE_A_IDLE:
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return "a_idle";
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case OTG_STATE_A_WAIT_VRISE:
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return "a_wait_vrise";
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case OTG_STATE_A_WAIT_BCON:
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return "a_wait_bcon";
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case OTG_STATE_A_HOST:
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return "a_host";
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case OTG_STATE_A_SUSPEND:
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return "a_suspend";
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case OTG_STATE_A_PERIPHERAL:
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return "a_peripheral";
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case OTG_STATE_A_WAIT_VFALL:
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return "a_wait_vfall";
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case OTG_STATE_A_VBUS_ERR:
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return "a_vbus_err";
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case OTG_STATE_B_IDLE:
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return "b_idle";
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case OTG_STATE_B_SRP_INIT:
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return "b_srp_init";
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case OTG_STATE_B_PERIPHERAL:
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return "b_peripheral";
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case OTG_STATE_B_WAIT_ACON:
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return "b_wait_acon";
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case OTG_STATE_B_HOST:
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return "b_host";
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default:
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return "UNDEFINED";
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}
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}
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/* HSM timers */
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static inline struct langwell_otg_timer *otg_timer_initializer
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(void (*function)(unsigned long), unsigned long expires, unsigned long data)
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@ -968,7 +934,7 @@ static void langwell_otg_work(struct work_struct *work)
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pdev = to_pci_dev(lnw->dev);
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dev_dbg(lnw->dev, "%s: old state = %s\n", __func__,
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state_string(iotg->otg.state));
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otg_state_string(iotg->otg.state));
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switch (iotg->otg.state) {
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case OTG_STATE_UNDEFINED:
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@ -1703,7 +1669,7 @@ static void langwell_otg_work(struct work_struct *work)
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}
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dev_dbg(lnw->dev, "%s: new state = %s\n", __func__,
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state_string(iotg->otg.state));
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otg_state_string(iotg->otg.state));
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}
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static ssize_t
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@ -1789,7 +1755,7 @@ show_hsm(struct device *_dev, struct device_attribute *attr, char *buf)
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"b_bus_req = \t%d\n"
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"b_bus_suspend_tmout = \t%d\n"
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"b_bus_suspend_vld = \t%d\n",
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state_string(iotg->otg.state),
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otg_state_string(iotg->otg.state),
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iotg->hsm.a_bus_resume,
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iotg->hsm.a_bus_suspend,
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iotg->hsm.a_conn,
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@ -64,3 +64,38 @@ int otg_set_transceiver(struct otg_transceiver *x)
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return 0;
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}
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EXPORT_SYMBOL(otg_set_transceiver);
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const char *otg_state_string(enum usb_otg_state state)
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{
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switch (state) {
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case OTG_STATE_A_IDLE:
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return "a_idle";
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case OTG_STATE_A_WAIT_VRISE:
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return "a_wait_vrise";
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case OTG_STATE_A_WAIT_BCON:
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return "a_wait_bcon";
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case OTG_STATE_A_HOST:
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return "a_host";
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case OTG_STATE_A_SUSPEND:
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return "a_suspend";
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case OTG_STATE_A_PERIPHERAL:
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return "a_peripheral";
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case OTG_STATE_A_WAIT_VFALL:
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return "a_wait_vfall";
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case OTG_STATE_A_VBUS_ERR:
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return "a_vbus_err";
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case OTG_STATE_B_IDLE:
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return "b_idle";
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case OTG_STATE_B_SRP_INIT:
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return "b_srp_init";
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case OTG_STATE_B_PERIPHERAL:
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return "b_peripheral";
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case OTG_STATE_B_WAIT_ACON:
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return "b_wait_acon";
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case OTG_STATE_B_HOST:
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return "b_host";
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default:
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return "UNDEFINED";
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}
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}
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EXPORT_SYMBOL(otg_state_string);
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@ -246,5 +246,6 @@ otg_unregister_notifier(struct otg_transceiver *otg, struct notifier_block *nb)
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/* for OTG controller drivers (and maybe other stuff) */
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extern int usb_bus_start_enum(struct usb_bus *bus, unsigned port_num);
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extern const char *otg_state_string(enum usb_otg_state state);
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#endif /* __LINUX_USB_OTG_H */
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