2 * Faraday FOTG210 USB OTG controller
4 * Copyright (C) 2013 Faraday Technology Corporation
5 * Author: Yuan-Hsin Chen <yhchen@faraday-tech.com>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
13 #include <linux/kernel.h>
15 #define FOTG210_MAX_NUM_EP 5 /* ep0...ep4 */
16 #define FOTG210_MAX_FIFO_NUM 4 /* fifo0...fifo4 */
18 /* Global Mask of HC/OTG/DEV interrupt Register(0xC4) */
19 #define FOTG210_GMIR 0xC4
20 #define GMIR_INT_POLARITY 0x8 /*Active High*/
21 #define GMIR_MHC_INT 0x4
22 #define GMIR_MOTG_INT 0x2
23 #define GMIR_MDEV_INT 0x1
25 /* Device Main Control Register(0x100) */
26 #define FOTG210_DMCR 0x100
27 #define DMCR_HS_EN (1 << 6)
28 #define DMCR_CHIP_EN (1 << 5)
29 #define DMCR_SFRST (1 << 4)
30 #define DMCR_GOSUSP (1 << 3)
31 #define DMCR_GLINT_EN (1 << 2)
32 #define DMCR_HALF_SPEED (1 << 1)
33 #define DMCR_CAP_RMWAKUP (1 << 0)
35 /* Device Address Register(0x104) */
36 #define FOTG210_DAR 0x104
37 #define DAR_AFT_CONF (1 << 7)
39 /* Device Test Register(0x108) */
40 #define FOTG210_DTR 0x108
41 #define DTR_TST_CLRFF (1 << 0)
43 /* PHY Test Mode Selector register(0x114) */
44 #define FOTG210_PHYTMSR 0x114
45 #define PHYTMSR_TST_PKT (1 << 4)
46 #define PHYTMSR_TST_SE0NAK (1 << 3)
47 #define PHYTMSR_TST_KSTA (1 << 2)
48 #define PHYTMSR_TST_JSTA (1 << 1)
49 #define PHYTMSR_UNPLUG (1 << 0)
51 /* Cx configuration and FIFO Empty Status register(0x120) */
52 #define FOTG210_DCFESR 0x120
53 #define DCFESR_FIFO_EMPTY(fifo) (1 << 8 << (fifo))
54 #define DCFESR_CX_EMP (1 << 5)
55 #define DCFESR_CX_CLR (1 << 3)
56 #define DCFESR_CX_STL (1 << 2)
57 #define DCFESR_TST_PKDONE (1 << 1)
58 #define DCFESR_CX_DONE (1 << 0)
60 /* Device IDLE Counter Register(0x124) */
61 #define FOTG210_DICR 0x124
63 /* Device Mask of Interrupt Group Register (0x130) */
64 #define FOTG210_DMIGR 0x130
65 #define DMIGR_MINT_G0 (1 << 0)
67 /* Device Mask of Interrupt Source Group 0(0x134) */
68 #define FOTG210_DMISGR0 0x134
69 #define DMISGR0_MCX_COMEND (1 << 3)
70 #define DMISGR0_MCX_OUT_INT (1 << 2)
71 #define DMISGR0_MCX_IN_INT (1 << 1)
72 #define DMISGR0_MCX_SETUP_INT (1 << 0)
74 /* Device Mask of Interrupt Source Group 1 Register(0x138)*/
75 #define FOTG210_DMISGR1 0x138
76 #define DMISGR1_MF3_IN_INT (1 << 19)
77 #define DMISGR1_MF2_IN_INT (1 << 18)
78 #define DMISGR1_MF1_IN_INT (1 << 17)
79 #define DMISGR1_MF0_IN_INT (1 << 16)
80 #define DMISGR1_MF_IN_INT(fifo) (1 << (16 + (fifo)))
81 #define DMISGR1_MF3_SPK_INT (1 << 7)
82 #define DMISGR1_MF3_OUT_INT (1 << 6)
83 #define DMISGR1_MF2_SPK_INT (1 << 5)
84 #define DMISGR1_MF2_OUT_INT (1 << 4)
85 #define DMISGR1_MF1_SPK_INT (1 << 3)
86 #define DMISGR1_MF1_OUT_INT (1 << 2)
87 #define DMISGR1_MF0_SPK_INT (1 << 1)
88 #define DMISGR1_MF0_OUT_INT (1 << 0)
89 #define DMISGR1_MF_OUTSPK_INT(fifo) (0x3 << (fifo) * 2)
91 /* Device Mask of Interrupt Source Group 2 Register (0x13C) */
92 #define FOTG210_DMISGR2 0x13C
93 #define DMISGR2_MDMA_ERROR (1 << 8)
94 #define DMISGR2_MDMA_CMPLT (1 << 7)
96 /* Device Interrupt group Register (0x140) */
97 #define FOTG210_DIGR 0x140
98 #define DIGR_INT_G2 (1 << 2)
99 #define DIGR_INT_G1 (1 << 1)
100 #define DIGR_INT_G0 (1 << 0)
102 /* Device Interrupt Source Group 0 Register (0x144) */
103 #define FOTG210_DISGR0 0x144
104 #define DISGR0_CX_COMABT_INT (1 << 5)
105 #define DISGR0_CX_COMFAIL_INT (1 << 4)
106 #define DISGR0_CX_COMEND_INT (1 << 3)
107 #define DISGR0_CX_OUT_INT (1 << 2)
108 #define DISGR0_CX_IN_INT (1 << 1)
109 #define DISGR0_CX_SETUP_INT (1 << 0)
111 /* Device Interrupt Source Group 1 Register (0x148) */
112 #define FOTG210_DISGR1 0x148
113 #define DISGR1_OUT_INT(fifo) (1 << ((fifo) * 2))
114 #define DISGR1_SPK_INT(fifo) (1 << 1 << ((fifo) * 2))
115 #define DISGR1_IN_INT(fifo) (1 << 16 << (fifo))
117 /* Device Interrupt Source Group 2 Register (0x14C) */
118 #define FOTG210_DISGR2 0x14C
119 #define DISGR2_DMA_ERROR (1 << 8)
120 #define DISGR2_DMA_CMPLT (1 << 7)
121 #define DISGR2_RX0BYTE_INT (1 << 6)
122 #define DISGR2_TX0BYTE_INT (1 << 5)
123 #define DISGR2_ISO_SEQ_ABORT_INT (1 << 4)
124 #define DISGR2_ISO_SEQ_ERR_INT (1 << 3)
125 #define DISGR2_RESM_INT (1 << 2)
126 #define DISGR2_SUSP_INT (1 << 1)
127 #define DISGR2_USBRST_INT (1 << 0)
129 /* Device Receive Zero-Length Data Packet Register (0x150)*/
130 #define FOTG210_RX0BYTE 0x150
131 #define RX0BYTE_EP8 (1 << 7)
132 #define RX0BYTE_EP7 (1 << 6)
133 #define RX0BYTE_EP6 (1 << 5)
134 #define RX0BYTE_EP5 (1 << 4)
135 #define RX0BYTE_EP4 (1 << 3)
136 #define RX0BYTE_EP3 (1 << 2)
137 #define RX0BYTE_EP2 (1 << 1)
138 #define RX0BYTE_EP1 (1 << 0)
140 /* Device Transfer Zero-Length Data Packet Register (0x154)*/
141 #define FOTG210_TX0BYTE 0x154
142 #define TX0BYTE_EP8 (1 << 7)
143 #define TX0BYTE_EP7 (1 << 6)
144 #define TX0BYTE_EP6 (1 << 5)
145 #define TX0BYTE_EP5 (1 << 4)
146 #define TX0BYTE_EP4 (1 << 3)
147 #define TX0BYTE_EP3 (1 << 2)
148 #define TX0BYTE_EP2 (1 << 1)
149 #define TX0BYTE_EP1 (1 << 0)
151 /* Device IN Endpoint x MaxPacketSize Register(0x160+4*(x-1)) */
152 #define FOTG210_INEPMPSR(ep) (0x160 + 4 * ((ep) - 1))
153 #define INOUTEPMPSR_MPS(mps) ((mps) & 0x2FF)
154 #define INOUTEPMPSR_STL_EP (1 << 11)
155 #define INOUTEPMPSR_RESET_TSEQ (1 << 12)
157 /* Device OUT Endpoint x MaxPacketSize Register(0x180+4*(x-1)) */
158 #define FOTG210_OUTEPMPSR(ep) (0x180 + 4 * ((ep) - 1))
160 /* Device Endpoint 1~4 Map Register (0x1A0) */
161 #define FOTG210_EPMAP 0x1A0
162 #define EPMAP_FIFONO(ep, dir) \
163 ((((ep) - 1) << ((ep) - 1) * 8) << ((dir) ? 0 : 4))
164 #define EPMAP_FIFONOMSK(ep, dir) \
165 ((3 << ((ep) - 1) * 8) << ((dir) ? 0 : 4))
167 /* Device FIFO Map Register (0x1A8) */
168 #define FOTG210_FIFOMAP 0x1A8
169 #define FIFOMAP_DIROUT(fifo) (0x0 << 4 << (fifo) * 8)
170 #define FIFOMAP_DIRIN(fifo) (0x1 << 4 << (fifo) * 8)
171 #define FIFOMAP_BIDIR(fifo) (0x2 << 4 << (fifo) * 8)
172 #define FIFOMAP_NA(fifo) (0x3 << 4 << (fifo) * 8)
173 #define FIFOMAP_EPNO(ep) ((ep) << ((ep) - 1) * 8)
174 #define FIFOMAP_EPNOMSK(ep) (0xF << ((ep) - 1) * 8)
176 /* Device FIFO Confuguration Register (0x1AC) */
177 #define FOTG210_FIFOCF 0x1AC
178 #define FIFOCF_TYPE(type, fifo) ((type) << (fifo) * 8)
179 #define FIFOCF_BLK_SIN(fifo) (0x0 << (fifo) * 8 << 2)
180 #define FIFOCF_BLK_DUB(fifo) (0x1 << (fifo) * 8 << 2)
181 #define FIFOCF_BLK_TRI(fifo) (0x2 << (fifo) * 8 << 2)
182 #define FIFOCF_BLKSZ_512(fifo) (0x0 << (fifo) * 8 << 4)
183 #define FIFOCF_BLKSZ_1024(fifo) (0x1 << (fifo) * 8 << 4)
184 #define FIFOCF_FIFO_EN(fifo) (0x1 << (fifo) * 8 << 5)
186 /* Device FIFO n Instruction and Byte Count Register (0x1B0+4*n) */
187 #define FOTG210_FIBCR(fifo) (0x1B0 + (fifo) * 4)
188 #define FIBCR_BCFX 0x7FF
189 #define FIBCR_FFRST (1 << 12)
191 /* Device DMA Target FIFO Number Register (0x1C0) */
192 #define FOTG210_DMATFNR 0x1C0
193 #define DMATFNR_ACC_CXF (1 << 4)
194 #define DMATFNR_ACC_F3 (1 << 3)
195 #define DMATFNR_ACC_F2 (1 << 2)
196 #define DMATFNR_ACC_F1 (1 << 1)
197 #define DMATFNR_ACC_F0 (1 << 0)
198 #define DMATFNR_ACC_FN(fifo) (1 << (fifo))
199 #define DMATFNR_DISDMA 0
201 /* Device DMA Controller Parameter setting 1 Register (0x1C8) */
202 #define FOTG210_DMACPSR1 0x1C8
203 #define DMACPSR1_DMA_LEN(len) (((len) & 0xFFFF) << 8)
204 #define DMACPSR1_DMA_ABORT (1 << 3)
205 #define DMACPSR1_DMA_TYPE(dir_in) (((dir_in) ? 1 : 0) << 1)
206 #define DMACPSR1_DMA_START (1 << 0)
208 /* Device DMA Controller Parameter setting 2 Register (0x1CC) */
209 #define FOTG210_DMACPSR2 0x1CC
211 /* Device DMA Controller Parameter setting 3 Register (0x1CC) */
212 #define FOTG210_CXPORT 0x1D0
214 struct fotg210_request {
215 struct usb_request req;
216 struct list_head queue;
221 struct fotg210_udc *fotg210;
223 struct list_head queue;
230 unsigned char dir_in;
232 const struct usb_endpoint_descriptor *desc;
236 spinlock_t lock; /* protect the struct */
239 unsigned long irq_trigger;
241 struct usb_gadget gadget;
242 struct usb_gadget_driver *driver;
244 struct fotg210_ep *ep[FOTG210_MAX_NUM_EP];
246 struct usb_request *ep0_req; /* for internal request */
248 u8 ep0_dir; /* 0/0x80 out/in */
250 u8 reenum; /* if re-enumeration */
253 #define gadget_to_fotg210(g) container_of((g), struct fotg210_udc, gadget)