aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/usb/otg/ulpi.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb/otg/ulpi.c')
-rw-r--r--drivers/usb/otg/ulpi.c127
1 files changed, 117 insertions, 10 deletions
diff --git a/drivers/usb/otg/ulpi.c b/drivers/usb/otg/ulpi.c
index ef7dbe40f111..ccc81950822b 100644
--- a/drivers/usb/otg/ulpi.c
+++ b/drivers/usb/otg/ulpi.c
@@ -37,25 +37,106 @@ static unsigned int ulpi_ids[] = {
37 ULPI_ID(0x0424, 0x0006), /* SMSC USB3319 */ 37 ULPI_ID(0x0424, 0x0006), /* SMSC USB3319 */
38}; 38};
39 39
40static int ulpi_set_flags(struct otg_transceiver *otg) 40static int ulpi_set_otg_flags(struct otg_transceiver *otg)
41{ 41{
42 unsigned int flags = 0; 42 unsigned int flags = ULPI_OTG_CTRL_DP_PULLDOWN |
43 ULPI_OTG_CTRL_DM_PULLDOWN;
43 44
44 if (otg->flags & USB_OTG_PULLUP_ID) 45 if (otg->flags & ULPI_OTG_ID_PULLUP)
45 flags |= ULPI_OTG_CTRL_ID_PULLUP; 46 flags |= ULPI_OTG_CTRL_ID_PULLUP;
46 47
47 if (otg->flags & USB_OTG_PULLDOWN_DM) 48 /*
48 flags |= ULPI_OTG_CTRL_DM_PULLDOWN; 49 * ULPI Specification rev.1.1 default
50 * for Dp/DmPulldown is enabled.
51 */
52 if (otg->flags & ULPI_OTG_DP_PULLDOWN_DIS)
53 flags &= ~ULPI_OTG_CTRL_DP_PULLDOWN;
49 54
50 if (otg->flags & USB_OTG_PULLDOWN_DP) 55 if (otg->flags & ULPI_OTG_DM_PULLDOWN_DIS)
51 flags |= ULPI_OTG_CTRL_DP_PULLDOWN; 56 flags &= ~ULPI_OTG_CTRL_DM_PULLDOWN;
52 57
53 if (otg->flags & USB_OTG_EXT_VBUS_INDICATOR) 58 if (otg->flags & ULPI_OTG_EXTVBUSIND)
54 flags |= ULPI_OTG_CTRL_EXTVBUSIND; 59 flags |= ULPI_OTG_CTRL_EXTVBUSIND;
55 60
56 return otg_io_write(otg, flags, ULPI_OTG_CTRL); 61 return otg_io_write(otg, flags, ULPI_OTG_CTRL);
57} 62}
58 63
64static int ulpi_set_fc_flags(struct otg_transceiver *otg)
65{
66 unsigned int flags = 0;
67
68 /*
69 * ULPI Specification rev.1.1 default
70 * for XcvrSelect is Full Speed.
71 */
72 if (otg->flags & ULPI_FC_HS)
73 flags |= ULPI_FUNC_CTRL_HIGH_SPEED;
74 else if (otg->flags & ULPI_FC_LS)
75 flags |= ULPI_FUNC_CTRL_LOW_SPEED;
76 else if (otg->flags & ULPI_FC_FS4LS)
77 flags |= ULPI_FUNC_CTRL_FS4LS;
78 else
79 flags |= ULPI_FUNC_CTRL_FULL_SPEED;
80
81 if (otg->flags & ULPI_FC_TERMSEL)
82 flags |= ULPI_FUNC_CTRL_TERMSELECT;
83
84 /*
85 * ULPI Specification rev.1.1 default
86 * for OpMode is Normal Operation.
87 */
88 if (otg->flags & ULPI_FC_OP_NODRV)
89 flags |= ULPI_FUNC_CTRL_OPMODE_NONDRIVING;
90 else if (otg->flags & ULPI_FC_OP_DIS_NRZI)
91 flags |= ULPI_FUNC_CTRL_OPMODE_DISABLE_NRZI;
92 else if (otg->flags & ULPI_FC_OP_NSYNC_NEOP)
93 flags |= ULPI_FUNC_CTRL_OPMODE_NOSYNC_NOEOP;
94 else
95 flags |= ULPI_FUNC_CTRL_OPMODE_NORMAL;
96
97 /*
98 * ULPI Specification rev.1.1 default
99 * for SuspendM is Powered.
100 */
101 flags |= ULPI_FUNC_CTRL_SUSPENDM;
102
103 return otg_io_write(otg, flags, ULPI_FUNC_CTRL);
104}
105
106static int ulpi_set_ic_flags(struct otg_transceiver *otg)
107{
108 unsigned int flags = 0;
109
110 if (otg->flags & ULPI_IC_AUTORESUME)
111 flags |= ULPI_IFC_CTRL_AUTORESUME;
112
113 if (otg->flags & ULPI_IC_EXTVBUS_INDINV)
114 flags |= ULPI_IFC_CTRL_EXTERNAL_VBUS;
115
116 if (otg->flags & ULPI_IC_IND_PASSTHRU)
117 flags |= ULPI_IFC_CTRL_PASSTHRU;
118
119 if (otg->flags & ULPI_IC_PROTECT_DIS)
120 flags |= ULPI_IFC_CTRL_PROTECT_IFC_DISABLE;
121
122 return otg_io_write(otg, flags, ULPI_IFC_CTRL);
123}
124
125static int ulpi_set_flags(struct otg_transceiver *otg)
126{
127 int ret;
128
129 ret = ulpi_set_otg_flags(otg);
130 if (ret)
131 return ret;
132
133 ret = ulpi_set_ic_flags(otg);
134 if (ret)
135 return ret;
136
137 return ulpi_set_fc_flags(otg);
138}
139
59static int ulpi_init(struct otg_transceiver *otg) 140static int ulpi_init(struct otg_transceiver *otg)
60{ 141{
61 int i, vid, pid, ret; 142 int i, vid, pid, ret;
@@ -80,6 +161,31 @@ static int ulpi_init(struct otg_transceiver *otg)
80 return -ENODEV; 161 return -ENODEV;
81} 162}
82 163
164static int ulpi_set_host(struct otg_transceiver *otg, struct usb_bus *host)
165{
166 unsigned int flags = otg_io_read(otg, ULPI_IFC_CTRL);
167
168 if (!host) {
169 otg->host = NULL;
170 return 0;
171 }
172
173 otg->host = host;
174
175 flags &= ~(ULPI_IFC_CTRL_6_PIN_SERIAL_MODE |
176 ULPI_IFC_CTRL_3_PIN_SERIAL_MODE |
177 ULPI_IFC_CTRL_CARKITMODE);
178
179 if (otg->flags & ULPI_IC_6PIN_SERIAL)
180 flags |= ULPI_IFC_CTRL_6_PIN_SERIAL_MODE;
181 else if (otg->flags & ULPI_IC_3PIN_SERIAL)
182 flags |= ULPI_IFC_CTRL_3_PIN_SERIAL_MODE;
183 else if (otg->flags & ULPI_IC_CARKIT)
184 flags |= ULPI_IFC_CTRL_CARKITMODE;
185
186 return otg_io_write(otg, flags, ULPI_IFC_CTRL);
187}
188
83static int ulpi_set_vbus(struct otg_transceiver *otg, bool on) 189static int ulpi_set_vbus(struct otg_transceiver *otg, bool on)
84{ 190{
85 unsigned int flags = otg_io_read(otg, ULPI_OTG_CTRL); 191 unsigned int flags = otg_io_read(otg, ULPI_OTG_CTRL);
@@ -87,10 +193,10 @@ static int ulpi_set_vbus(struct otg_transceiver *otg, bool on)
87 flags &= ~(ULPI_OTG_CTRL_DRVVBUS | ULPI_OTG_CTRL_DRVVBUS_EXT); 193 flags &= ~(ULPI_OTG_CTRL_DRVVBUS | ULPI_OTG_CTRL_DRVVBUS_EXT);
88 194
89 if (on) { 195 if (on) {
90 if (otg->flags & USB_OTG_DRV_VBUS) 196 if (otg->flags & ULPI_OTG_DRVVBUS)
91 flags |= ULPI_OTG_CTRL_DRVVBUS; 197 flags |= ULPI_OTG_CTRL_DRVVBUS;
92 198
93 if (otg->flags & USB_OTG_DRV_VBUS_EXT) 199 if (otg->flags & ULPI_OTG_DRVVBUS_EXT)
94 flags |= ULPI_OTG_CTRL_DRVVBUS_EXT; 200 flags |= ULPI_OTG_CTRL_DRVVBUS_EXT;
95 } 201 }
96 202
@@ -111,6 +217,7 @@ otg_ulpi_create(struct otg_io_access_ops *ops,
111 otg->flags = flags; 217 otg->flags = flags;
112 otg->io_ops = ops; 218 otg->io_ops = ops;
113 otg->init = ulpi_init; 219 otg->init = ulpi_init;
220 otg->set_host = ulpi_set_host;
114 otg->set_vbus = ulpi_set_vbus; 221 otg->set_vbus = ulpi_set_vbus;
115 222
116 return otg; 223 return otg;