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1 | a7954218 | balrog | /*
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2 | a7954218 | balrog | * FTDI FT232BM Device emulation
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3 | a7954218 | balrog | *
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4 | a7954218 | balrog | * Copyright (c) 2006 CodeSourcery.
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5 | a7954218 | balrog | * Copyright (c) 2008 Samuel Thibault <samuel.thibault@ens-lyon.org>
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6 | a7954218 | balrog | * Written by Paul Brook, reused for FTDI by Samuel Thibault
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7 | a7954218 | balrog | *
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8 | a7954218 | balrog | * This code is licenced under the LGPL.
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9 | a7954218 | balrog | */
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10 | a7954218 | balrog | |
11 | a7954218 | balrog | #include "qemu-common.h" |
12 | 2f792016 | Markus Armbruster | #include "qemu-error.h" |
13 | a7954218 | balrog | #include "usb.h" |
14 | f29783f7 | Gerd Hoffmann | #include "usb-desc.h" |
15 | a7954218 | balrog | #include "qemu-char.h" |
16 | a7954218 | balrog | |
17 | a7954218 | balrog | //#define DEBUG_Serial
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18 | a7954218 | balrog | |
19 | a7954218 | balrog | #ifdef DEBUG_Serial
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20 | 001faf32 | Blue Swirl | #define DPRINTF(fmt, ...) \
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21 | 001faf32 | Blue Swirl | do { printf("usb-serial: " fmt , ## __VA_ARGS__); } while (0) |
22 | a7954218 | balrog | #else
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23 | 001faf32 | Blue Swirl | #define DPRINTF(fmt, ...) do {} while(0) |
24 | a7954218 | balrog | #endif
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25 | a7954218 | balrog | |
26 | a7954218 | balrog | #define RECV_BUF 384 |
27 | a7954218 | balrog | |
28 | a7954218 | balrog | /* Commands */
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29 | a7954218 | balrog | #define FTDI_RESET 0 |
30 | a7954218 | balrog | #define FTDI_SET_MDM_CTRL 1 |
31 | a7954218 | balrog | #define FTDI_SET_FLOW_CTRL 2 |
32 | a7954218 | balrog | #define FTDI_SET_BAUD 3 |
33 | a7954218 | balrog | #define FTDI_SET_DATA 4 |
34 | a7954218 | balrog | #define FTDI_GET_MDM_ST 5 |
35 | a7954218 | balrog | #define FTDI_SET_EVENT_CHR 6 |
36 | a7954218 | balrog | #define FTDI_SET_ERROR_CHR 7 |
37 | a7954218 | balrog | #define FTDI_SET_LATENCY 9 |
38 | a7954218 | balrog | #define FTDI_GET_LATENCY 10 |
39 | a7954218 | balrog | |
40 | a7954218 | balrog | #define DeviceOutVendor ((USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_DEVICE)<<8) |
41 | a7954218 | balrog | #define DeviceInVendor ((USB_DIR_IN |USB_TYPE_VENDOR|USB_RECIP_DEVICE)<<8) |
42 | a7954218 | balrog | |
43 | a7954218 | balrog | /* RESET */
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44 | a7954218 | balrog | |
45 | a7954218 | balrog | #define FTDI_RESET_SIO 0 |
46 | a7954218 | balrog | #define FTDI_RESET_RX 1 |
47 | a7954218 | balrog | #define FTDI_RESET_TX 2 |
48 | a7954218 | balrog | |
49 | a7954218 | balrog | /* SET_MDM_CTRL */
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50 | a7954218 | balrog | |
51 | a7954218 | balrog | #define FTDI_DTR 1 |
52 | abb8a139 | aurel32 | #define FTDI_SET_DTR (FTDI_DTR << 8) |
53 | a7954218 | balrog | #define FTDI_RTS 2 |
54 | abb8a139 | aurel32 | #define FTDI_SET_RTS (FTDI_RTS << 8) |
55 | a7954218 | balrog | |
56 | a7954218 | balrog | /* SET_FLOW_CTRL */
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57 | a7954218 | balrog | |
58 | a7954218 | balrog | #define FTDI_RTS_CTS_HS 1 |
59 | a7954218 | balrog | #define FTDI_DTR_DSR_HS 2 |
60 | a7954218 | balrog | #define FTDI_XON_XOFF_HS 4 |
61 | a7954218 | balrog | |
62 | a7954218 | balrog | /* SET_DATA */
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63 | a7954218 | balrog | |
64 | a7954218 | balrog | #define FTDI_PARITY (0x7 << 8) |
65 | a7954218 | balrog | #define FTDI_ODD (0x1 << 8) |
66 | a7954218 | balrog | #define FTDI_EVEN (0x2 << 8) |
67 | a7954218 | balrog | #define FTDI_MARK (0x3 << 8) |
68 | a7954218 | balrog | #define FTDI_SPACE (0x4 << 8) |
69 | a7954218 | balrog | |
70 | a7954218 | balrog | #define FTDI_STOP (0x3 << 11) |
71 | a7954218 | balrog | #define FTDI_STOP1 (0x0 << 11) |
72 | a7954218 | balrog | #define FTDI_STOP15 (0x1 << 11) |
73 | a7954218 | balrog | #define FTDI_STOP2 (0x2 << 11) |
74 | a7954218 | balrog | |
75 | a7954218 | balrog | /* GET_MDM_ST */
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76 | a7954218 | balrog | /* TODO: should be sent every 40ms */
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77 | a7954218 | balrog | #define FTDI_CTS (1<<4) // CTS line status |
78 | a7954218 | balrog | #define FTDI_DSR (1<<5) // DSR line status |
79 | a7954218 | balrog | #define FTDI_RI (1<<6) // RI line status |
80 | a7954218 | balrog | #define FTDI_RLSD (1<<7) // Receive Line Signal Detect |
81 | a7954218 | balrog | |
82 | a7954218 | balrog | /* Status */
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83 | a7954218 | balrog | |
84 | a7954218 | balrog | #define FTDI_DR (1<<0) // Data Ready |
85 | a7954218 | balrog | #define FTDI_OE (1<<1) // Overrun Err |
86 | a7954218 | balrog | #define FTDI_PE (1<<2) // Parity Err |
87 | a7954218 | balrog | #define FTDI_FE (1<<3) // Framing Err |
88 | a7954218 | balrog | #define FTDI_BI (1<<4) // Break Interrupt |
89 | a7954218 | balrog | #define FTDI_THRE (1<<5) // Transmitter Holding Register |
90 | a7954218 | balrog | #define FTDI_TEMT (1<<6) // Transmitter Empty |
91 | a7954218 | balrog | #define FTDI_FIFO (1<<7) // Error in FIFO |
92 | a7954218 | balrog | |
93 | a7954218 | balrog | typedef struct { |
94 | a7954218 | balrog | USBDevice dev; |
95 | a7954218 | balrog | uint8_t recv_buf[RECV_BUF]; |
96 | 8109b9b6 | aurel32 | uint16_t recv_ptr; |
97 | 8109b9b6 | aurel32 | uint16_t recv_used; |
98 | a7954218 | balrog | uint8_t event_chr; |
99 | a7954218 | balrog | uint8_t error_chr; |
100 | a7954218 | balrog | uint8_t event_trigger; |
101 | a7954218 | balrog | QEMUSerialSetParams params; |
102 | a7954218 | balrog | int latency; /* ms */ |
103 | a7954218 | balrog | CharDriverState *cs; |
104 | a7954218 | balrog | } USBSerialState; |
105 | a7954218 | balrog | |
106 | f29783f7 | Gerd Hoffmann | enum {
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107 | f29783f7 | Gerd Hoffmann | STR_MANUFACTURER = 1,
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108 | f29783f7 | Gerd Hoffmann | STR_PRODUCT_SERIAL, |
109 | f29783f7 | Gerd Hoffmann | STR_PRODUCT_BRAILLE, |
110 | f29783f7 | Gerd Hoffmann | STR_SERIALNUMBER, |
111 | a7954218 | balrog | }; |
112 | a7954218 | balrog | |
113 | f29783f7 | Gerd Hoffmann | static const USBDescStrings desc_strings = { |
114 | f29783f7 | Gerd Hoffmann | [STR_MANUFACTURER] = "QEMU " QEMU_VERSION,
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115 | f29783f7 | Gerd Hoffmann | [STR_PRODUCT_SERIAL] = "QEMU USB SERIAL",
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116 | f29783f7 | Gerd Hoffmann | [STR_PRODUCT_BRAILLE] = "QEMU USB BRAILLE",
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117 | f29783f7 | Gerd Hoffmann | [STR_SERIALNUMBER] = "1",
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118 | f29783f7 | Gerd Hoffmann | }; |
119 | f29783f7 | Gerd Hoffmann | |
120 | f29783f7 | Gerd Hoffmann | static const USBDescIface desc_iface0 = { |
121 | f29783f7 | Gerd Hoffmann | .bInterfaceNumber = 0,
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122 | f29783f7 | Gerd Hoffmann | .bNumEndpoints = 2,
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123 | f29783f7 | Gerd Hoffmann | .bInterfaceClass = 0xff,
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124 | f29783f7 | Gerd Hoffmann | .bInterfaceSubClass = 0xff,
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125 | f29783f7 | Gerd Hoffmann | .bInterfaceProtocol = 0xff,
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126 | f29783f7 | Gerd Hoffmann | .eps = (USBDescEndpoint[]) { |
127 | f29783f7 | Gerd Hoffmann | { |
128 | f29783f7 | Gerd Hoffmann | .bEndpointAddress = USB_DIR_IN | 0x01,
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129 | f29783f7 | Gerd Hoffmann | .bmAttributes = USB_ENDPOINT_XFER_BULK, |
130 | f29783f7 | Gerd Hoffmann | .wMaxPacketSize = 64,
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131 | f29783f7 | Gerd Hoffmann | },{ |
132 | f29783f7 | Gerd Hoffmann | .bEndpointAddress = USB_DIR_OUT | 0x02,
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133 | f29783f7 | Gerd Hoffmann | .bmAttributes = USB_ENDPOINT_XFER_BULK, |
134 | f29783f7 | Gerd Hoffmann | .wMaxPacketSize = 64,
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135 | f29783f7 | Gerd Hoffmann | }, |
136 | f29783f7 | Gerd Hoffmann | } |
137 | f29783f7 | Gerd Hoffmann | }; |
138 | f29783f7 | Gerd Hoffmann | |
139 | f29783f7 | Gerd Hoffmann | static const USBDescDevice desc_device = { |
140 | f29783f7 | Gerd Hoffmann | .bcdUSB = 0x0200,
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141 | f29783f7 | Gerd Hoffmann | .bMaxPacketSize0 = 8,
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142 | f29783f7 | Gerd Hoffmann | .bNumConfigurations = 1,
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143 | f29783f7 | Gerd Hoffmann | .confs = (USBDescConfig[]) { |
144 | f29783f7 | Gerd Hoffmann | { |
145 | f29783f7 | Gerd Hoffmann | .bNumInterfaces = 1,
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146 | f29783f7 | Gerd Hoffmann | .bConfigurationValue = 1,
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147 | f29783f7 | Gerd Hoffmann | .bmAttributes = 0x80,
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148 | f29783f7 | Gerd Hoffmann | .bMaxPower = 50,
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149 | f29783f7 | Gerd Hoffmann | .ifs = &desc_iface0, |
150 | f29783f7 | Gerd Hoffmann | }, |
151 | f29783f7 | Gerd Hoffmann | }, |
152 | f29783f7 | Gerd Hoffmann | }; |
153 | f29783f7 | Gerd Hoffmann | |
154 | f29783f7 | Gerd Hoffmann | static const USBDesc desc_serial = { |
155 | f29783f7 | Gerd Hoffmann | .id = { |
156 | f29783f7 | Gerd Hoffmann | .idVendor = 0x0403,
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157 | f29783f7 | Gerd Hoffmann | .idProduct = 0x6001,
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158 | f29783f7 | Gerd Hoffmann | .bcdDevice = 0x0400,
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159 | f29783f7 | Gerd Hoffmann | .iManufacturer = STR_MANUFACTURER, |
160 | f29783f7 | Gerd Hoffmann | .iProduct = STR_PRODUCT_SERIAL, |
161 | f29783f7 | Gerd Hoffmann | .iSerialNumber = STR_SERIALNUMBER, |
162 | f29783f7 | Gerd Hoffmann | }, |
163 | f29783f7 | Gerd Hoffmann | .full = &desc_device, |
164 | f29783f7 | Gerd Hoffmann | .str = desc_strings, |
165 | f29783f7 | Gerd Hoffmann | }; |
166 | f29783f7 | Gerd Hoffmann | |
167 | f29783f7 | Gerd Hoffmann | static const USBDesc desc_braille = { |
168 | f29783f7 | Gerd Hoffmann | .id = { |
169 | f29783f7 | Gerd Hoffmann | .idVendor = 0x0403,
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170 | f29783f7 | Gerd Hoffmann | .idProduct = 0xfe72,
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171 | f29783f7 | Gerd Hoffmann | .bcdDevice = 0x0400,
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172 | f29783f7 | Gerd Hoffmann | .iManufacturer = STR_MANUFACTURER, |
173 | f29783f7 | Gerd Hoffmann | .iProduct = STR_PRODUCT_BRAILLE, |
174 | f29783f7 | Gerd Hoffmann | .iSerialNumber = STR_SERIALNUMBER, |
175 | f29783f7 | Gerd Hoffmann | }, |
176 | f29783f7 | Gerd Hoffmann | .full = &desc_device, |
177 | f29783f7 | Gerd Hoffmann | .str = desc_strings, |
178 | a7954218 | balrog | }; |
179 | a7954218 | balrog | |
180 | a7954218 | balrog | static void usb_serial_reset(USBSerialState *s) |
181 | a7954218 | balrog | { |
182 | a7954218 | balrog | /* TODO: Set flow control to none */
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183 | a7954218 | balrog | s->event_chr = 0x0d;
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184 | a7954218 | balrog | s->event_trigger = 0;
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185 | a7954218 | balrog | s->recv_ptr = 0;
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186 | a7954218 | balrog | s->recv_used = 0;
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187 | a7954218 | balrog | /* TODO: purge in char driver */
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188 | a7954218 | balrog | } |
189 | a7954218 | balrog | |
190 | a7954218 | balrog | static void usb_serial_handle_reset(USBDevice *dev) |
191 | a7954218 | balrog | { |
192 | a7954218 | balrog | USBSerialState *s = (USBSerialState *)dev; |
193 | a7954218 | balrog | |
194 | a7954218 | balrog | DPRINTF("Reset\n");
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195 | a7954218 | balrog | |
196 | a7954218 | balrog | usb_serial_reset(s); |
197 | a7954218 | balrog | /* TODO: Reset char device, send BREAK? */
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198 | a7954218 | balrog | } |
199 | a7954218 | balrog | |
200 | abb8a139 | aurel32 | static uint8_t usb_get_modem_lines(USBSerialState *s)
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201 | abb8a139 | aurel32 | { |
202 | abb8a139 | aurel32 | int flags;
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203 | abb8a139 | aurel32 | uint8_t ret; |
204 | abb8a139 | aurel32 | |
205 | abb8a139 | aurel32 | if (qemu_chr_ioctl(s->cs, CHR_IOCTL_SERIAL_GET_TIOCM, &flags) == -ENOTSUP)
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206 | abb8a139 | aurel32 | return FTDI_CTS|FTDI_DSR|FTDI_RLSD;
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207 | abb8a139 | aurel32 | |
208 | abb8a139 | aurel32 | ret = 0;
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209 | abb8a139 | aurel32 | if (flags & CHR_TIOCM_CTS)
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210 | abb8a139 | aurel32 | ret |= FTDI_CTS; |
211 | abb8a139 | aurel32 | if (flags & CHR_TIOCM_DSR)
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212 | abb8a139 | aurel32 | ret |= FTDI_DSR; |
213 | abb8a139 | aurel32 | if (flags & CHR_TIOCM_RI)
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214 | abb8a139 | aurel32 | ret |= FTDI_RI; |
215 | abb8a139 | aurel32 | if (flags & CHR_TIOCM_CAR)
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216 | abb8a139 | aurel32 | ret |= FTDI_RLSD; |
217 | abb8a139 | aurel32 | |
218 | abb8a139 | aurel32 | return ret;
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219 | abb8a139 | aurel32 | } |
220 | abb8a139 | aurel32 | |
221 | a7954218 | balrog | static int usb_serial_handle_control(USBDevice *dev, int request, int value, |
222 | a7954218 | balrog | int index, int length, uint8_t *data) |
223 | a7954218 | balrog | { |
224 | a7954218 | balrog | USBSerialState *s = (USBSerialState *)dev; |
225 | f29783f7 | Gerd Hoffmann | int ret;
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226 | f29783f7 | Gerd Hoffmann | |
227 | f29783f7 | Gerd Hoffmann | DPRINTF("got control %x, value %x\n",request, value);
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228 | f29783f7 | Gerd Hoffmann | ret = usb_desc_handle_control(dev, request, value, index, length, data); |
229 | f29783f7 | Gerd Hoffmann | if (ret >= 0) { |
230 | f29783f7 | Gerd Hoffmann | return ret;
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231 | f29783f7 | Gerd Hoffmann | } |
232 | a7954218 | balrog | |
233 | f29783f7 | Gerd Hoffmann | ret = 0;
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234 | a7954218 | balrog | switch (request) {
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235 | a7954218 | balrog | case DeviceRequest | USB_REQ_GET_INTERFACE:
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236 | a7954218 | balrog | data[0] = 0; |
237 | a7954218 | balrog | ret = 1;
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238 | a7954218 | balrog | break;
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239 | a7954218 | balrog | case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
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240 | a7954218 | balrog | ret = 0;
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241 | a7954218 | balrog | break;
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242 | a7954218 | balrog | case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
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243 | a7954218 | balrog | ret = 0;
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244 | a7954218 | balrog | break;
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245 | a7954218 | balrog | |
246 | a7954218 | balrog | /* Class specific requests. */
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247 | a7954218 | balrog | case DeviceOutVendor | FTDI_RESET:
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248 | a7954218 | balrog | switch (value) {
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249 | a7954218 | balrog | case FTDI_RESET_SIO:
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250 | a7954218 | balrog | usb_serial_reset(s); |
251 | a7954218 | balrog | break;
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252 | a7954218 | balrog | case FTDI_RESET_RX:
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253 | a7954218 | balrog | s->recv_ptr = 0;
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254 | a7954218 | balrog | s->recv_used = 0;
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255 | a7954218 | balrog | /* TODO: purge from char device */
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256 | a7954218 | balrog | break;
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257 | a7954218 | balrog | case FTDI_RESET_TX:
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258 | a7954218 | balrog | /* TODO: purge from char device */
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259 | a7954218 | balrog | break;
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260 | a7954218 | balrog | } |
261 | a7954218 | balrog | break;
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262 | a7954218 | balrog | case DeviceOutVendor | FTDI_SET_MDM_CTRL:
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263 | abb8a139 | aurel32 | { |
264 | abb8a139 | aurel32 | static int flags; |
265 | abb8a139 | aurel32 | qemu_chr_ioctl(s->cs,CHR_IOCTL_SERIAL_GET_TIOCM, &flags); |
266 | abb8a139 | aurel32 | if (value & FTDI_SET_RTS) {
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267 | abb8a139 | aurel32 | if (value & FTDI_RTS)
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268 | abb8a139 | aurel32 | flags |= CHR_TIOCM_RTS; |
269 | abb8a139 | aurel32 | else
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270 | abb8a139 | aurel32 | flags &= ~CHR_TIOCM_RTS; |
271 | abb8a139 | aurel32 | } |
272 | abb8a139 | aurel32 | if (value & FTDI_SET_DTR) {
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273 | abb8a139 | aurel32 | if (value & FTDI_DTR)
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274 | abb8a139 | aurel32 | flags |= CHR_TIOCM_DTR; |
275 | abb8a139 | aurel32 | else
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276 | abb8a139 | aurel32 | flags &= ~CHR_TIOCM_DTR; |
277 | abb8a139 | aurel32 | } |
278 | abb8a139 | aurel32 | qemu_chr_ioctl(s->cs,CHR_IOCTL_SERIAL_SET_TIOCM, &flags); |
279 | a7954218 | balrog | break;
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280 | abb8a139 | aurel32 | } |
281 | a7954218 | balrog | case DeviceOutVendor | FTDI_SET_FLOW_CTRL:
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282 | a7954218 | balrog | /* TODO: ioctl */
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283 | a7954218 | balrog | break;
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284 | a7954218 | balrog | case DeviceOutVendor | FTDI_SET_BAUD: {
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285 | a7954218 | balrog | static const int subdivisors8[8] = { 0, 4, 2, 1, 3, 5, 6, 7 }; |
286 | a7954218 | balrog | int subdivisor8 = subdivisors8[((value & 0xc000) >> 14) |
287 | a7954218 | balrog | | ((index & 1) << 2)]; |
288 | a7954218 | balrog | int divisor = value & 0x3fff; |
289 | a7954218 | balrog | |
290 | a7954218 | balrog | /* chip special cases */
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291 | a7954218 | balrog | if (divisor == 1 && subdivisor8 == 0) |
292 | a7954218 | balrog | subdivisor8 = 4;
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293 | a7954218 | balrog | if (divisor == 0 && subdivisor8 == 0) |
294 | a7954218 | balrog | divisor = 1;
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295 | a7954218 | balrog | |
296 | a7954218 | balrog | s->params.speed = (48000000 / 2) / (8 * divisor + subdivisor8); |
297 | a7954218 | balrog | qemu_chr_ioctl(s->cs, CHR_IOCTL_SERIAL_SET_PARAMS, &s->params); |
298 | a7954218 | balrog | break;
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299 | a7954218 | balrog | } |
300 | a7954218 | balrog | case DeviceOutVendor | FTDI_SET_DATA:
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301 | a7954218 | balrog | switch (value & FTDI_PARITY) {
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302 | a7954218 | balrog | case 0: |
303 | a7954218 | balrog | s->params.parity = 'N';
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304 | a7954218 | balrog | break;
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305 | a7954218 | balrog | case FTDI_ODD:
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306 | a7954218 | balrog | s->params.parity = 'O';
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307 | a7954218 | balrog | break;
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308 | a7954218 | balrog | case FTDI_EVEN:
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309 | a7954218 | balrog | s->params.parity = 'E';
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310 | a7954218 | balrog | break;
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311 | a7954218 | balrog | default:
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312 | a7954218 | balrog | DPRINTF("unsupported parity %d\n", value & FTDI_PARITY);
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313 | a7954218 | balrog | goto fail;
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314 | a7954218 | balrog | } |
315 | a7954218 | balrog | switch (value & FTDI_STOP) {
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316 | a7954218 | balrog | case FTDI_STOP1:
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317 | a7954218 | balrog | s->params.stop_bits = 1;
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318 | a7954218 | balrog | break;
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319 | a7954218 | balrog | case FTDI_STOP2:
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320 | a7954218 | balrog | s->params.stop_bits = 2;
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321 | a7954218 | balrog | break;
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322 | a7954218 | balrog | default:
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323 | a7954218 | balrog | DPRINTF("unsupported stop bits %d\n", value & FTDI_STOP);
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324 | a7954218 | balrog | goto fail;
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325 | a7954218 | balrog | } |
326 | a7954218 | balrog | qemu_chr_ioctl(s->cs, CHR_IOCTL_SERIAL_SET_PARAMS, &s->params); |
327 | a7954218 | balrog | /* TODO: TX ON/OFF */
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328 | a7954218 | balrog | break;
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329 | a7954218 | balrog | case DeviceInVendor | FTDI_GET_MDM_ST:
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330 | abb8a139 | aurel32 | data[0] = usb_get_modem_lines(s) | 1; |
331 | abb8a139 | aurel32 | data[1] = 0; |
332 | abb8a139 | aurel32 | ret = 2;
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333 | a7954218 | balrog | break;
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334 | a7954218 | balrog | case DeviceOutVendor | FTDI_SET_EVENT_CHR:
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335 | a7954218 | balrog | /* TODO: handle it */
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336 | a7954218 | balrog | s->event_chr = value; |
337 | a7954218 | balrog | break;
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338 | a7954218 | balrog | case DeviceOutVendor | FTDI_SET_ERROR_CHR:
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339 | a7954218 | balrog | /* TODO: handle it */
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340 | a7954218 | balrog | s->error_chr = value; |
341 | a7954218 | balrog | break;
|
342 | a7954218 | balrog | case DeviceOutVendor | FTDI_SET_LATENCY:
|
343 | a7954218 | balrog | s->latency = value; |
344 | a7954218 | balrog | break;
|
345 | a7954218 | balrog | case DeviceInVendor | FTDI_GET_LATENCY:
|
346 | a7954218 | balrog | data[0] = s->latency;
|
347 | a7954218 | balrog | ret = 1;
|
348 | a7954218 | balrog | break;
|
349 | a7954218 | balrog | default:
|
350 | a7954218 | balrog | fail:
|
351 | a7954218 | balrog | DPRINTF("got unsupported/bogus control %x, value %x\n", request, value);
|
352 | a7954218 | balrog | ret = USB_RET_STALL; |
353 | a7954218 | balrog | break;
|
354 | a7954218 | balrog | } |
355 | a7954218 | balrog | return ret;
|
356 | a7954218 | balrog | } |
357 | a7954218 | balrog | |
358 | a7954218 | balrog | static int usb_serial_handle_data(USBDevice *dev, USBPacket *p) |
359 | a7954218 | balrog | { |
360 | a7954218 | balrog | USBSerialState *s = (USBSerialState *)dev; |
361 | a7954218 | balrog | int ret = 0; |
362 | a7954218 | balrog | uint8_t devep = p->devep; |
363 | a7954218 | balrog | uint8_t *data = p->data; |
364 | a7954218 | balrog | int len = p->len;
|
365 | a7954218 | balrog | int first_len;
|
366 | a7954218 | balrog | |
367 | a7954218 | balrog | switch (p->pid) {
|
368 | a7954218 | balrog | case USB_TOKEN_OUT:
|
369 | a7954218 | balrog | if (devep != 2) |
370 | a7954218 | balrog | goto fail;
|
371 | a7954218 | balrog | qemu_chr_write(s->cs, data, len); |
372 | a7954218 | balrog | break;
|
373 | a7954218 | balrog | |
374 | a7954218 | balrog | case USB_TOKEN_IN:
|
375 | a7954218 | balrog | if (devep != 1) |
376 | a7954218 | balrog | goto fail;
|
377 | a7954218 | balrog | first_len = RECV_BUF - s->recv_ptr; |
378 | a7954218 | balrog | if (len <= 2) { |
379 | a7954218 | balrog | ret = USB_RET_NAK; |
380 | a7954218 | balrog | break;
|
381 | a7954218 | balrog | } |
382 | abb8a139 | aurel32 | *data++ = usb_get_modem_lines(s) | 1;
|
383 | abb8a139 | aurel32 | /* We do not have the uart details */
|
384 | 7e57f049 | Jason Wessel | /* handle serial break */
|
385 | 7e57f049 | Jason Wessel | if (s->event_trigger && s->event_trigger & FTDI_BI) {
|
386 | 7e57f049 | Jason Wessel | s->event_trigger &= ~FTDI_BI; |
387 | d4c4e6fd | Blue Swirl | *data = FTDI_BI; |
388 | 7e57f049 | Jason Wessel | ret = 2;
|
389 | 7e57f049 | Jason Wessel | break;
|
390 | 7e57f049 | Jason Wessel | } else {
|
391 | 7e57f049 | Jason Wessel | *data++ = 0;
|
392 | 7e57f049 | Jason Wessel | } |
393 | a7954218 | balrog | len -= 2;
|
394 | a7954218 | balrog | if (len > s->recv_used)
|
395 | a7954218 | balrog | len = s->recv_used; |
396 | a7954218 | balrog | if (!len) {
|
397 | a7954218 | balrog | ret = USB_RET_NAK; |
398 | a7954218 | balrog | break;
|
399 | a7954218 | balrog | } |
400 | a7954218 | balrog | if (first_len > len)
|
401 | a7954218 | balrog | first_len = len; |
402 | a7954218 | balrog | memcpy(data, s->recv_buf + s->recv_ptr, first_len); |
403 | a7954218 | balrog | if (len > first_len)
|
404 | a7954218 | balrog | memcpy(data + first_len, s->recv_buf, len - first_len); |
405 | a7954218 | balrog | s->recv_used -= len; |
406 | a7954218 | balrog | s->recv_ptr = (s->recv_ptr + len) % RECV_BUF; |
407 | a7954218 | balrog | ret = len + 2;
|
408 | a7954218 | balrog | break;
|
409 | a7954218 | balrog | |
410 | a7954218 | balrog | default:
|
411 | a7954218 | balrog | DPRINTF("Bad token\n");
|
412 | a7954218 | balrog | fail:
|
413 | a7954218 | balrog | ret = USB_RET_STALL; |
414 | a7954218 | balrog | break;
|
415 | a7954218 | balrog | } |
416 | a7954218 | balrog | |
417 | a7954218 | balrog | return ret;
|
418 | a7954218 | balrog | } |
419 | a7954218 | balrog | |
420 | a7954218 | balrog | static void usb_serial_handle_destroy(USBDevice *dev) |
421 | a7954218 | balrog | { |
422 | a7954218 | balrog | USBSerialState *s = (USBSerialState *)dev; |
423 | a7954218 | balrog | |
424 | a7954218 | balrog | qemu_chr_close(s->cs); |
425 | a7954218 | balrog | } |
426 | a7954218 | balrog | |
427 | 8fcd3692 | blueswir1 | static int usb_serial_can_read(void *opaque) |
428 | a7954218 | balrog | { |
429 | a7954218 | balrog | USBSerialState *s = opaque; |
430 | a7954218 | balrog | return RECV_BUF - s->recv_used;
|
431 | a7954218 | balrog | } |
432 | a7954218 | balrog | |
433 | 8fcd3692 | blueswir1 | static void usb_serial_read(void *opaque, const uint8_t *buf, int size) |
434 | a7954218 | balrog | { |
435 | a7954218 | balrog | USBSerialState *s = opaque; |
436 | 4ab4183d | David S. Ahern | int first_size, start;
|
437 | 4ab4183d | David S. Ahern | |
438 | 4ab4183d | David S. Ahern | /* room in the buffer? */
|
439 | 4ab4183d | David S. Ahern | if (size > (RECV_BUF - s->recv_used))
|
440 | 4ab4183d | David S. Ahern | size = RECV_BUF - s->recv_used; |
441 | 4ab4183d | David S. Ahern | |
442 | 4ab4183d | David S. Ahern | start = s->recv_ptr + s->recv_used; |
443 | 4ab4183d | David S. Ahern | if (start < RECV_BUF) {
|
444 | 4ab4183d | David S. Ahern | /* copy data to end of buffer */
|
445 | 4ab4183d | David S. Ahern | first_size = RECV_BUF - start; |
446 | 4ab4183d | David S. Ahern | if (first_size > size)
|
447 | 4ab4183d | David S. Ahern | first_size = size; |
448 | 4ab4183d | David S. Ahern | |
449 | 4ab4183d | David S. Ahern | memcpy(s->recv_buf + start, buf, first_size); |
450 | 4ab4183d | David S. Ahern | |
451 | 4ab4183d | David S. Ahern | /* wrap around to front if needed */
|
452 | 4ab4183d | David S. Ahern | if (size > first_size)
|
453 | 4ab4183d | David S. Ahern | memcpy(s->recv_buf, buf + first_size, size - first_size); |
454 | 4ab4183d | David S. Ahern | } else {
|
455 | 4ab4183d | David S. Ahern | start -= RECV_BUF; |
456 | 4ab4183d | David S. Ahern | memcpy(s->recv_buf + start, buf, size); |
457 | 4ab4183d | David S. Ahern | } |
458 | a7954218 | balrog | s->recv_used += size; |
459 | a7954218 | balrog | } |
460 | a7954218 | balrog | |
461 | 8fcd3692 | blueswir1 | static void usb_serial_event(void *opaque, int event) |
462 | a7954218 | balrog | { |
463 | a7954218 | balrog | USBSerialState *s = opaque; |
464 | a7954218 | balrog | |
465 | a7954218 | balrog | switch (event) {
|
466 | a7954218 | balrog | case CHR_EVENT_BREAK:
|
467 | 7e57f049 | Jason Wessel | s->event_trigger |= FTDI_BI; |
468 | a7954218 | balrog | break;
|
469 | a7954218 | balrog | case CHR_EVENT_FOCUS:
|
470 | a7954218 | balrog | break;
|
471 | b6b8df56 | Amit Shah | case CHR_EVENT_OPENED:
|
472 | a7954218 | balrog | usb_serial_reset(s); |
473 | a7954218 | balrog | /* TODO: Reset USB port */
|
474 | a7954218 | balrog | break;
|
475 | a7954218 | balrog | } |
476 | a7954218 | balrog | } |
477 | a7954218 | balrog | |
478 | 806b6024 | Gerd Hoffmann | static int usb_serial_initfn(USBDevice *dev) |
479 | 806b6024 | Gerd Hoffmann | { |
480 | 806b6024 | Gerd Hoffmann | USBSerialState *s = DO_UPCAST(USBSerialState, dev, dev); |
481 | a980a065 | Gerd Hoffmann | |
482 | a980a065 | Gerd Hoffmann | usb_desc_init(dev); |
483 | 2b0efdc3 | Gerd Hoffmann | |
484 | 81bf96d3 | Markus Armbruster | if (!s->cs) {
|
485 | 81bf96d3 | Markus Armbruster | error_report("Property chardev is required");
|
486 | 81bf96d3 | Markus Armbruster | return -1; |
487 | 81bf96d3 | Markus Armbruster | } |
488 | 81bf96d3 | Markus Armbruster | |
489 | 2b0efdc3 | Gerd Hoffmann | qemu_chr_add_handlers(s->cs, usb_serial_can_read, usb_serial_read, |
490 | 2b0efdc3 | Gerd Hoffmann | usb_serial_event, s); |
491 | 2b0efdc3 | Gerd Hoffmann | usb_serial_handle_reset(dev); |
492 | 806b6024 | Gerd Hoffmann | return 0; |
493 | 806b6024 | Gerd Hoffmann | } |
494 | 806b6024 | Gerd Hoffmann | |
495 | 2b0efdc3 | Gerd Hoffmann | static USBDevice *usb_serial_init(const char *filename) |
496 | a7954218 | balrog | { |
497 | 806b6024 | Gerd Hoffmann | USBDevice *dev; |
498 | a7954218 | balrog | CharDriverState *cdrv; |
499 | 2b0efdc3 | Gerd Hoffmann | uint32_t vendorid = 0, productid = 0; |
500 | 5ccfae10 | aliguori | char label[32]; |
501 | 5ccfae10 | aliguori | static int index; |
502 | a7954218 | balrog | |
503 | a7954218 | balrog | while (*filename && *filename != ':') { |
504 | a7954218 | balrog | const char *p; |
505 | a7954218 | balrog | char *e;
|
506 | a7954218 | balrog | if (strstart(filename, "vendorid=", &p)) { |
507 | a7954218 | balrog | vendorid = strtol(p, &e, 16);
|
508 | a7954218 | balrog | if (e == p || (*e && *e != ',' && *e != ':')) { |
509 | 1ecda02b | Markus Armbruster | error_report("bogus vendor ID %s", p);
|
510 | a7954218 | balrog | return NULL; |
511 | a7954218 | balrog | } |
512 | a7954218 | balrog | filename = e; |
513 | a7954218 | balrog | } else if (strstart(filename, "productid=", &p)) { |
514 | a7954218 | balrog | productid = strtol(p, &e, 16);
|
515 | a7954218 | balrog | if (e == p || (*e && *e != ',' && *e != ':')) { |
516 | 1ecda02b | Markus Armbruster | error_report("bogus product ID %s", p);
|
517 | a7954218 | balrog | return NULL; |
518 | a7954218 | balrog | } |
519 | a7954218 | balrog | filename = e; |
520 | a7954218 | balrog | } else {
|
521 | 1ecda02b | Markus Armbruster | error_report("unrecognized serial USB option %s", filename);
|
522 | a7954218 | balrog | return NULL; |
523 | a7954218 | balrog | } |
524 | a7954218 | balrog | while(*filename == ',') |
525 | a7954218 | balrog | filename++; |
526 | a7954218 | balrog | } |
527 | a7954218 | balrog | if (!*filename) {
|
528 | 1ecda02b | Markus Armbruster | error_report("character device specification needed");
|
529 | a7954218 | balrog | return NULL; |
530 | a7954218 | balrog | } |
531 | a7954218 | balrog | filename++; |
532 | a7954218 | balrog | |
533 | 5ccfae10 | aliguori | snprintf(label, sizeof(label), "usbserial%d", index++); |
534 | ceecf1d1 | aurel32 | cdrv = qemu_chr_open(label, filename, NULL);
|
535 | a7954218 | balrog | if (!cdrv)
|
536 | 806b6024 | Gerd Hoffmann | return NULL; |
537 | a7954218 | balrog | |
538 | 556cd098 | Markus Armbruster | dev = usb_create(NULL /* FIXME */, "usb-serial"); |
539 | d44168ff | Paul Brook | if (!dev) {
|
540 | d44168ff | Paul Brook | return NULL; |
541 | d44168ff | Paul Brook | } |
542 | 2b0efdc3 | Gerd Hoffmann | qdev_prop_set_chr(&dev->qdev, "chardev", cdrv);
|
543 | 2b0efdc3 | Gerd Hoffmann | if (vendorid)
|
544 | 2b0efdc3 | Gerd Hoffmann | qdev_prop_set_uint16(&dev->qdev, "vendorid", vendorid);
|
545 | 2b0efdc3 | Gerd Hoffmann | if (productid)
|
546 | 2b0efdc3 | Gerd Hoffmann | qdev_prop_set_uint16(&dev->qdev, "productid", productid);
|
547 | beb6f0de | Kevin Wolf | qdev_init_nofail(&dev->qdev); |
548 | a7954218 | balrog | |
549 | 2b0efdc3 | Gerd Hoffmann | return dev;
|
550 | 2b0efdc3 | Gerd Hoffmann | } |
551 | 2b0efdc3 | Gerd Hoffmann | |
552 | 2b0efdc3 | Gerd Hoffmann | static USBDevice *usb_braille_init(const char *unused) |
553 | 2b0efdc3 | Gerd Hoffmann | { |
554 | 2b0efdc3 | Gerd Hoffmann | USBDevice *dev; |
555 | 2b0efdc3 | Gerd Hoffmann | CharDriverState *cdrv; |
556 | 2b0efdc3 | Gerd Hoffmann | |
557 | 2b0efdc3 | Gerd Hoffmann | cdrv = qemu_chr_open("braille", "braille", NULL); |
558 | 2b0efdc3 | Gerd Hoffmann | if (!cdrv)
|
559 | 2b0efdc3 | Gerd Hoffmann | return NULL; |
560 | 806b6024 | Gerd Hoffmann | |
561 | 556cd098 | Markus Armbruster | dev = usb_create(NULL /* FIXME */, "usb-braille"); |
562 | 2b0efdc3 | Gerd Hoffmann | qdev_prop_set_chr(&dev->qdev, "chardev", cdrv);
|
563 | beb6f0de | Kevin Wolf | qdev_init_nofail(&dev->qdev); |
564 | 2b0efdc3 | Gerd Hoffmann | |
565 | 2b0efdc3 | Gerd Hoffmann | return dev;
|
566 | a7954218 | balrog | } |
567 | 806b6024 | Gerd Hoffmann | |
568 | 806b6024 | Gerd Hoffmann | static struct USBDeviceInfo serial_info = { |
569 | 06384698 | Markus Armbruster | .product_desc = "QEMU USB Serial",
|
570 | 556cd098 | Markus Armbruster | .qdev.name = "usb-serial",
|
571 | 2b0efdc3 | Gerd Hoffmann | .qdev.size = sizeof(USBSerialState),
|
572 | f29783f7 | Gerd Hoffmann | .usb_desc = &desc_serial, |
573 | 2b0efdc3 | Gerd Hoffmann | .init = usb_serial_initfn, |
574 | 2b0efdc3 | Gerd Hoffmann | .handle_packet = usb_generic_handle_packet, |
575 | 2b0efdc3 | Gerd Hoffmann | .handle_reset = usb_serial_handle_reset, |
576 | 2b0efdc3 | Gerd Hoffmann | .handle_control = usb_serial_handle_control, |
577 | 2b0efdc3 | Gerd Hoffmann | .handle_data = usb_serial_handle_data, |
578 | 2b0efdc3 | Gerd Hoffmann | .handle_destroy = usb_serial_handle_destroy, |
579 | 2b0efdc3 | Gerd Hoffmann | .usbdevice_name = "serial",
|
580 | 2b0efdc3 | Gerd Hoffmann | .usbdevice_init = usb_serial_init, |
581 | 2b0efdc3 | Gerd Hoffmann | .qdev.props = (Property[]) { |
582 | f29783f7 | Gerd Hoffmann | DEFINE_PROP_CHR("chardev", USBSerialState, cs),
|
583 | 2b0efdc3 | Gerd Hoffmann | DEFINE_PROP_END_OF_LIST(), |
584 | 2b0efdc3 | Gerd Hoffmann | }, |
585 | 2b0efdc3 | Gerd Hoffmann | }; |
586 | 2b0efdc3 | Gerd Hoffmann | |
587 | 2b0efdc3 | Gerd Hoffmann | static struct USBDeviceInfo braille_info = { |
588 | 06384698 | Markus Armbruster | .product_desc = "QEMU USB Braille",
|
589 | 556cd098 | Markus Armbruster | .qdev.name = "usb-braille",
|
590 | 806b6024 | Gerd Hoffmann | .qdev.size = sizeof(USBSerialState),
|
591 | f29783f7 | Gerd Hoffmann | .usb_desc = &desc_braille, |
592 | 806b6024 | Gerd Hoffmann | .init = usb_serial_initfn, |
593 | 806b6024 | Gerd Hoffmann | .handle_packet = usb_generic_handle_packet, |
594 | 806b6024 | Gerd Hoffmann | .handle_reset = usb_serial_handle_reset, |
595 | 806b6024 | Gerd Hoffmann | .handle_control = usb_serial_handle_control, |
596 | 806b6024 | Gerd Hoffmann | .handle_data = usb_serial_handle_data, |
597 | 806b6024 | Gerd Hoffmann | .handle_destroy = usb_serial_handle_destroy, |
598 | 2b0efdc3 | Gerd Hoffmann | .usbdevice_name = "braille",
|
599 | 2b0efdc3 | Gerd Hoffmann | .usbdevice_init = usb_braille_init, |
600 | 2b0efdc3 | Gerd Hoffmann | .qdev.props = (Property[]) { |
601 | f29783f7 | Gerd Hoffmann | DEFINE_PROP_CHR("chardev", USBSerialState, cs),
|
602 | 2b0efdc3 | Gerd Hoffmann | DEFINE_PROP_END_OF_LIST(), |
603 | 2b0efdc3 | Gerd Hoffmann | }, |
604 | 806b6024 | Gerd Hoffmann | }; |
605 | 806b6024 | Gerd Hoffmann | |
606 | 806b6024 | Gerd Hoffmann | static void usb_serial_register_devices(void) |
607 | 806b6024 | Gerd Hoffmann | { |
608 | 806b6024 | Gerd Hoffmann | usb_qdev_register(&serial_info); |
609 | 2b0efdc3 | Gerd Hoffmann | usb_qdev_register(&braille_info); |
610 | 806b6024 | Gerd Hoffmann | } |
611 | 806b6024 | Gerd Hoffmann | device_init(usb_serial_register_devices) |