1 /*
2 * Texas Instruments TUSB6010 emulation.
3 * Based on reverse-engineering of a linux driver.
4 *
5 * Copyright (C) 2008 Nokia Corporation
6 * Written by Andrzej Zaborowski <andrew@openedhand.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 or
11 * (at your option) version 3 of the License.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, see <http://www.gnu.org/licenses/>.
20 */
21
22 #include "qemu/osdep.h"
23 #include "qemu/module.h"
24 #include "qemu/timer.h"
25 #include "hw/usb.h"
26 #include "hw/usb/hcd-musb.h"
27 #include "hw/arm/omap.h"
28 #include "hw/hw.h"
29 #include "hw/irq.h"
30 #include "hw/sysbus.h"
31 #include "qom/object.h"
32
33 #define TYPE_TUSB6010 "tusb6010"
34 OBJECT_DECLARE_SIMPLE_TYPE(TUSBState, TUSB6010)
35
36 struct TUSBState {
37 SysBusDevice parent_obj;
38
39 MemoryRegion iomem[2];
40 qemu_irq irq;
41 MUSBState *musb;
42 QEMUTimer *otg_timer;
43 QEMUTimer *pwr_timer;
44
45 int power;
46 uint32_t scratch;
47 uint16_t test_reset;
48 uint32_t prcm_config;
49 uint32_t prcm_mngmt;
50 uint16_t otg_status;
51 uint32_t dev_config;
52 int host_mode;
53 uint32_t intr;
54 uint32_t intr_ok;
55 uint32_t mask;
56 uint32_t usbip_intr;
57 uint32_t usbip_mask;
58 uint32_t gpio_intr;
59 uint32_t gpio_mask;
60 uint32_t gpio_config;
61 uint32_t dma_intr;
62 uint32_t dma_mask;
63 uint32_t dma_map;
64 uint32_t dma_config;
65 uint32_t ep0_config;
66 uint32_t rx_config[15];
67 uint32_t tx_config[15];
68 uint32_t wkup_mask;
69 uint32_t pullup[2];
70 uint32_t control_config;
71 uint32_t otg_timer_val;
72 };
73
74 #define TUSB_DEVCLOCK 60000000 /* 60 MHz */
75
76 #define TUSB_VLYNQ_CTRL 0x004
77
78 /* Mentor Graphics OTG core registers. */
79 #define TUSB_BASE_OFFSET 0x400
80
81 /* FIFO registers, 32-bit. */
82 #define TUSB_FIFO_BASE 0x600
83
84 /* Device System & Control registers, 32-bit. */
85 #define TUSB_SYS_REG_BASE 0x800
86
87 #define TUSB_DEV_CONF (TUSB_SYS_REG_BASE + 0x000)
88 #define TUSB_DEV_CONF_USB_HOST_MODE (1 << 16)
89 #define TUSB_DEV_CONF_PROD_TEST_MODE (1 << 15)
90 #define TUSB_DEV_CONF_SOFT_ID (1 << 1)
91 #define TUSB_DEV_CONF_ID_SEL (1 << 0)
92
93 #define TUSB_PHY_OTG_CTRL_ENABLE (TUSB_SYS_REG_BASE + 0x004)
94 #define TUSB_PHY_OTG_CTRL (TUSB_SYS_REG_BASE + 0x008)
95 #define TUSB_PHY_OTG_CTRL_WRPROTECT (0xa5 << 24)
96 #define TUSB_PHY_OTG_CTRL_O_ID_PULLUP (1 << 23)
97 #define TUSB_PHY_OTG_CTRL_O_VBUS_DET_EN (1 << 19)
98 #define TUSB_PHY_OTG_CTRL_O_SESS_END_EN (1 << 18)
99 #define TUSB_PHY_OTG_CTRL_TESTM2 (1 << 17)
100 #define TUSB_PHY_OTG_CTRL_TESTM1 (1 << 16)
101 #define TUSB_PHY_OTG_CTRL_TESTM0 (1 << 15)
102 #define TUSB_PHY_OTG_CTRL_TX_DATA2 (1 << 14)
103 #define TUSB_PHY_OTG_CTRL_TX_GZ2 (1 << 13)
104 #define TUSB_PHY_OTG_CTRL_TX_ENABLE2 (1 << 12)
105 #define TUSB_PHY_OTG_CTRL_DM_PULLDOWN (1 << 11)
106 #define TUSB_PHY_OTG_CTRL_DP_PULLDOWN (1 << 10)
107 #define TUSB_PHY_OTG_CTRL_OSC_EN (1 << 9)
108 #define TUSB_PHY_OTG_CTRL_PHYREF_CLK(v) (((v) & 3) << 7)
109 #define TUSB_PHY_OTG_CTRL_PD (1 << 6)
110 #define TUSB_PHY_OTG_CTRL_PLL_ON (1 << 5)
111 #define TUSB_PHY_OTG_CTRL_EXT_RPU (1 << 4)
112 #define TUSB_PHY_OTG_CTRL_PWR_GOOD (1 << 3)
113 #define TUSB_PHY_OTG_CTRL_RESET (1 << 2)
114 #define TUSB_PHY_OTG_CTRL_SUSPENDM (1 << 1)
115 #define TUSB_PHY_OTG_CTRL_CLK_MODE (1 << 0)
116
117 /* OTG status register */
118 #define TUSB_DEV_OTG_STAT (TUSB_SYS_REG_BASE + 0x00c)
119 #define TUSB_DEV_OTG_STAT_PWR_CLK_GOOD (1 << 8)
120 #define TUSB_DEV_OTG_STAT_SESS_END (1 << 7)
121 #define TUSB_DEV_OTG_STAT_SESS_VALID (1 << 6)
122 #define TUSB_DEV_OTG_STAT_VBUS_VALID (1 << 5)
123 #define TUSB_DEV_OTG_STAT_VBUS_SENSE (1 << 4)
124 #define TUSB_DEV_OTG_STAT_ID_STATUS (1 << 3)
125 #define TUSB_DEV_OTG_STAT_HOST_DISCON (1 << 2)
126 #define TUSB_DEV_OTG_STAT_LINE_STATE (3 << 0)
127 #define TUSB_DEV_OTG_STAT_DP_ENABLE (1 << 1)
128 #define TUSB_DEV_OTG_STAT_DM_ENABLE (1 << 0)
129
130 #define TUSB_DEV_OTG_TIMER (TUSB_SYS_REG_BASE + 0x010)
131 #define TUSB_DEV_OTG_TIMER_ENABLE (1 << 31)
132 #define TUSB_DEV_OTG_TIMER_VAL(v) ((v) & 0x07ffffff)
133 #define TUSB_PRCM_REV (TUSB_SYS_REG_BASE + 0x014)
134
135 /* PRCM configuration register */
136 #define TUSB_PRCM_CONF (TUSB_SYS_REG_BASE + 0x018)
137 #define TUSB_PRCM_CONF_SFW_CPEN (1 << 24)
138 #define TUSB_PRCM_CONF_SYS_CLKSEL(v) (((v) & 3) << 16)
139
140 /* PRCM management register */
141 #define TUSB_PRCM_MNGMT (TUSB_SYS_REG_BASE + 0x01c)
142 #define TUSB_PRCM_MNGMT_SRP_FIX_TMR(v) (((v) & 0xf) << 25)
143 #define TUSB_PRCM_MNGMT_SRP_FIX_EN (1 << 24)
144 #define TUSB_PRCM_MNGMT_VBUS_VAL_TMR(v) (((v) & 0xf) << 20)
145 #define TUSB_PRCM_MNGMT_VBUS_VAL_FLT_EN (1 << 19)
146 #define TUSB_PRCM_MNGMT_DFT_CLK_DIS (1 << 18)
147 #define TUSB_PRCM_MNGMT_VLYNQ_CLK_DIS (1 << 17)
148 #define TUSB_PRCM_MNGMT_OTG_SESS_END_EN (1 << 10)
149 #define TUSB_PRCM_MNGMT_OTG_VBUS_DET_EN (1 << 9)
150 #define TUSB_PRCM_MNGMT_OTG_ID_PULLUP (1 << 8)
151 #define TUSB_PRCM_MNGMT_15_SW_EN (1 << 4)
152 #define TUSB_PRCM_MNGMT_33_SW_EN (1 << 3)
153 #define TUSB_PRCM_MNGMT_5V_CPEN (1 << 2)
154 #define TUSB_PRCM_MNGMT_PM_IDLE (1 << 1)
155 #define TUSB_PRCM_MNGMT_DEV_IDLE (1 << 0)
156
157 /* Wake-up source clear and mask registers */
158 #define TUSB_PRCM_WAKEUP_SOURCE (TUSB_SYS_REG_BASE + 0x020)
159 #define TUSB_PRCM_WAKEUP_CLEAR (TUSB_SYS_REG_BASE + 0x028)
160 #define TUSB_PRCM_WAKEUP_MASK (TUSB_SYS_REG_BASE + 0x02c)
161 #define TUSB_PRCM_WAKEUP_RESERVED_BITS (0xffffe << 13)
162 #define TUSB_PRCM_WGPIO_7 (1 << 12)
163 #define TUSB_PRCM_WGPIO_6 (1 << 11)
164 #define TUSB_PRCM_WGPIO_5 (1 << 10)
165 #define TUSB_PRCM_WGPIO_4 (1 << 9)
166 #define TUSB_PRCM_WGPIO_3 (1 << 8)
167 #define TUSB_PRCM_WGPIO_2 (1 << 7)
168 #define TUSB_PRCM_WGPIO_1 (1 << 6)
169 #define TUSB_PRCM_WGPIO_0 (1 << 5)
170 #define TUSB_PRCM_WHOSTDISCON (1 << 4) /* Host disconnect */
171 #define TUSB_PRCM_WBUS (1 << 3) /* USB bus resume */
172 #define TUSB_PRCM_WNORCS (1 << 2) /* NOR chip select */
173 #define TUSB_PRCM_WVBUS (1 << 1) /* OTG PHY VBUS */
174 #define TUSB_PRCM_WID (1 << 0) /* OTG PHY ID detect */
175
176 #define TUSB_PULLUP_1_CTRL (TUSB_SYS_REG_BASE + 0x030)
177 #define TUSB_PULLUP_2_CTRL (TUSB_SYS_REG_BASE + 0x034)
178 #define TUSB_INT_CTRL_REV (TUSB_SYS_REG_BASE + 0x038)
179 #define TUSB_INT_CTRL_CONF (TUSB_SYS_REG_BASE + 0x03c)
180 #define TUSB_USBIP_INT_SRC (TUSB_SYS_REG_BASE + 0x040)
181 #define TUSB_USBIP_INT_SET (TUSB_SYS_REG_BASE + 0x044)
182 #define TUSB_USBIP_INT_CLEAR (TUSB_SYS_REG_BASE + 0x048)
183 #define TUSB_USBIP_INT_MASK (TUSB_SYS_REG_BASE + 0x04c)
184 #define TUSB_DMA_INT_SRC (TUSB_SYS_REG_BASE + 0x050)
185 #define TUSB_DMA_INT_SET (TUSB_SYS_REG_BASE + 0x054)
186 #define TUSB_DMA_INT_CLEAR (TUSB_SYS_REG_BASE + 0x058)
187 #define TUSB_DMA_INT_MASK (TUSB_SYS_REG_BASE + 0x05c)
188 #define TUSB_GPIO_INT_SRC (TUSB_SYS_REG_BASE + 0x060)
189 #define TUSB_GPIO_INT_SET (TUSB_SYS_REG_BASE + 0x064)
190 #define TUSB_GPIO_INT_CLEAR (TUSB_SYS_REG_BASE + 0x068)
191 #define TUSB_GPIO_INT_MASK (TUSB_SYS_REG_BASE + 0x06c)
192
193 /* NOR flash interrupt source registers */
194 #define TUSB_INT_SRC (TUSB_SYS_REG_BASE + 0x070)
195 #define TUSB_INT_SRC_SET (TUSB_SYS_REG_BASE + 0x074)
196 #define TUSB_INT_SRC_CLEAR (TUSB_SYS_REG_BASE + 0x078)
197 #define TUSB_INT_MASK (TUSB_SYS_REG_BASE + 0x07c)
198 #define TUSB_INT_SRC_TXRX_DMA_DONE (1 << 24)
199 #define TUSB_INT_SRC_USB_IP_CORE (1 << 17)
200 #define TUSB_INT_SRC_OTG_TIMEOUT (1 << 16)
201 #define TUSB_INT_SRC_VBUS_SENSE_CHNG (1 << 15)
202 #define TUSB_INT_SRC_ID_STATUS_CHNG (1 << 14)
203 #define TUSB_INT_SRC_DEV_WAKEUP (1 << 13)
204 #define TUSB_INT_SRC_DEV_READY (1 << 12)
205 #define TUSB_INT_SRC_USB_IP_TX (1 << 9)
206 #define TUSB_INT_SRC_USB_IP_RX (1 << 8)
207 #define TUSB_INT_SRC_USB_IP_VBUS_ERR (1 << 7)
208 #define TUSB_INT_SRC_USB_IP_VBUS_REQ (1 << 6)
209 #define TUSB_INT_SRC_USB_IP_DISCON (1 << 5)
210 #define TUSB_INT_SRC_USB_IP_CONN (1 << 4)
211 #define TUSB_INT_SRC_USB_IP_SOF (1 << 3)
212 #define TUSB_INT_SRC_USB_IP_RST_BABBLE (1 << 2)
213 #define TUSB_INT_SRC_USB_IP_RESUME (1 << 1)
214 #define TUSB_INT_SRC_USB_IP_SUSPEND (1 << 0)
215
216 #define TUSB_GPIO_REV (TUSB_SYS_REG_BASE + 0x080)
217 #define TUSB_GPIO_CONF (TUSB_SYS_REG_BASE + 0x084)
218 #define TUSB_DMA_CTRL_REV (TUSB_SYS_REG_BASE + 0x100)
219 #define TUSB_DMA_REQ_CONF (TUSB_SYS_REG_BASE + 0x104)
220 #define TUSB_EP0_CONF (TUSB_SYS_REG_BASE + 0x108)
221 #define TUSB_EP_IN_SIZE (TUSB_SYS_REG_BASE + 0x10c)
222 #define TUSB_DMA_EP_MAP (TUSB_SYS_REG_BASE + 0x148)
223 #define TUSB_EP_OUT_SIZE (TUSB_SYS_REG_BASE + 0x14c)
224 #define TUSB_EP_MAX_PACKET_SIZE_OFFSET (TUSB_SYS_REG_BASE + 0x188)
225 #define TUSB_SCRATCH_PAD (TUSB_SYS_REG_BASE + 0x1c4)
226 #define TUSB_WAIT_COUNT (TUSB_SYS_REG_BASE + 0x1c8)
227 #define TUSB_PROD_TEST_RESET (TUSB_SYS_REG_BASE + 0x1d8)
228
229 #define TUSB_DIDR1_LO (TUSB_SYS_REG_BASE + 0x1f8)
230 #define TUSB_DIDR1_HI (TUSB_SYS_REG_BASE + 0x1fc)
231
232 /* Device System & Control register bitfields */
233 #define TUSB_INT_CTRL_CONF_INT_RLCYC(v) (((v) & 0x7) << 18)
234 #define TUSB_INT_CTRL_CONF_INT_POLARITY (1 << 17)
235 #define TUSB_INT_CTRL_CONF_INT_MODE (1 << 16)
236 #define TUSB_GPIO_CONF_DMAREQ(v) (((v) & 0x3f) << 24)
237 #define TUSB_DMA_REQ_CONF_BURST_SIZE(v) (((v) & 3) << 26)
238 #define TUSB_DMA_REQ_CONF_DMA_RQ_EN(v) (((v) & 0x3f) << 20)
239 #define TUSB_DMA_REQ_CONF_DMA_RQ_ASR(v) (((v) & 0xf) << 16)
240 #define TUSB_EP0_CONFIG_SW_EN (1 << 8)
241 #define TUSB_EP0_CONFIG_DIR_TX (1 << 7)
242 #define TUSB_EP0_CONFIG_XFR_SIZE(v) ((v) & 0x7f)
243 #define TUSB_EP_CONFIG_SW_EN (1 << 31)
244 #define TUSB_EP_CONFIG_XFR_SIZE(v) ((v) & 0x7fffffff)
245 #define TUSB_PROD_TEST_RESET_VAL 0xa596
246
tusb_intr_update(TUSBState * s)247 static void tusb_intr_update(TUSBState *s)
248 {
249 if (s->control_config & TUSB_INT_CTRL_CONF_INT_POLARITY)
250 qemu_set_irq(s->irq, s->intr & ~s->mask & s->intr_ok);
251 else
252 qemu_set_irq(s->irq, (!(s->intr & ~s->mask)) & s->intr_ok);
253 }
254
tusb_usbip_intr_update(TUSBState * s)255 static void tusb_usbip_intr_update(TUSBState *s)
256 {
257 /* TX interrupt in the MUSB */
258 if (s->usbip_intr & 0x0000ffff & ~s->usbip_mask)
259 s->intr |= TUSB_INT_SRC_USB_IP_TX;
260 else
261 s->intr &= ~TUSB_INT_SRC_USB_IP_TX;
262
263 /* RX interrupt in the MUSB */
264 if (s->usbip_intr & 0xffff0000 & ~s->usbip_mask)
265 s->intr |= TUSB_INT_SRC_USB_IP_RX;
266 else
267 s->intr &= ~TUSB_INT_SRC_USB_IP_RX;
268
269 /* XXX: What about TUSB_INT_SRC_USB_IP_CORE? */
270
271 tusb_intr_update(s);
272 }
273
tusb_dma_intr_update(TUSBState * s)274 static void tusb_dma_intr_update(TUSBState *s)
275 {
276 if (s->dma_intr & ~s->dma_mask)
277 s->intr |= TUSB_INT_SRC_TXRX_DMA_DONE;
278 else
279 s->intr &= ~TUSB_INT_SRC_TXRX_DMA_DONE;
280
281 tusb_intr_update(s);
282 }
283
tusb_gpio_intr_update(TUSBState * s)284 static void tusb_gpio_intr_update(TUSBState *s)
285 {
286 /* TODO: How is this signalled? */
287 }
288
tusb_async_readb(void * opaque,hwaddr addr)289 static uint32_t tusb_async_readb(void *opaque, hwaddr addr)
290 {
291 TUSBState *s = (TUSBState *) opaque;
292
293 switch (addr & 0xfff) {
294 case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff):
295 return musb_read[0](s->musb, addr & 0x1ff);
296
297 case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff):
298 return musb_read[0](s->musb, 0x20 + ((addr >> 3) & 0x3c));
299 }
300
301 printf("%s: unknown register at %03x\n",
302 __func__, (int) (addr & 0xfff));
303 return 0;
304 }
305
tusb_async_readh(void * opaque,hwaddr addr)306 static uint32_t tusb_async_readh(void *opaque, hwaddr addr)
307 {
308 TUSBState *s = (TUSBState *) opaque;
309
310 switch (addr & 0xfff) {
311 case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff):
312 return musb_read[1](s->musb, addr & 0x1ff);
313
314 case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff):
315 return musb_read[1](s->musb, 0x20 + ((addr >> 3) & 0x3c));
316 }
317
318 printf("%s: unknown register at %03x\n",
319 __func__, (int) (addr & 0xfff));
320 return 0;
321 }
322
tusb_async_readw(void * opaque,hwaddr addr)323 static uint32_t tusb_async_readw(void *opaque, hwaddr addr)
324 {
325 TUSBState *s = (TUSBState *) opaque;
326 int offset = addr & 0xfff;
327 int epnum;
328 uint32_t ret;
329
330 switch (offset) {
331 case TUSB_DEV_CONF:
332 return s->dev_config;
333
334 case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff):
335 return musb_read[2](s->musb, offset & 0x1ff);
336
337 case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff):
338 return musb_read[2](s->musb, 0x20 + ((addr >> 3) & 0x3c));
339
340 case TUSB_PHY_OTG_CTRL_ENABLE:
341 case TUSB_PHY_OTG_CTRL:
342 return 0x00; /* TODO */
343
344 case TUSB_DEV_OTG_STAT:
345 ret = s->otg_status;
346 #if 0
347 if (!(s->prcm_mngmt & TUSB_PRCM_MNGMT_OTG_VBUS_DET_EN))
348 ret &= ~TUSB_DEV_OTG_STAT_VBUS_VALID;
349 #endif
350 return ret;
351 case TUSB_DEV_OTG_TIMER:
352 return s->otg_timer_val;
353
354 case TUSB_PRCM_REV:
355 return 0x20;
356 case TUSB_PRCM_CONF:
357 return s->prcm_config;
358 case TUSB_PRCM_MNGMT:
359 return s->prcm_mngmt;
360 case TUSB_PRCM_WAKEUP_SOURCE:
361 case TUSB_PRCM_WAKEUP_CLEAR: /* TODO: What does this one return? */
362 return 0x00000000;
363 case TUSB_PRCM_WAKEUP_MASK:
364 return s->wkup_mask;
365
366 case TUSB_PULLUP_1_CTRL:
367 return s->pullup[0];
368 case TUSB_PULLUP_2_CTRL:
369 return s->pullup[1];
370
371 case TUSB_INT_CTRL_REV:
372 return 0x20;
373 case TUSB_INT_CTRL_CONF:
374 return s->control_config;
375
376 case TUSB_USBIP_INT_SRC:
377 case TUSB_USBIP_INT_SET: /* TODO: What do these two return? */
378 case TUSB_USBIP_INT_CLEAR:
379 return s->usbip_intr;
380 case TUSB_USBIP_INT_MASK:
381 return s->usbip_mask;
382
383 case TUSB_DMA_INT_SRC:
384 case TUSB_DMA_INT_SET: /* TODO: What do these two return? */
385 case TUSB_DMA_INT_CLEAR:
386 return s->dma_intr;
387 case TUSB_DMA_INT_MASK:
388 return s->dma_mask;
389
390 case TUSB_GPIO_INT_SRC: /* TODO: What do these two return? */
391 case TUSB_GPIO_INT_SET:
392 case TUSB_GPIO_INT_CLEAR:
393 return s->gpio_intr;
394 case TUSB_GPIO_INT_MASK:
395 return s->gpio_mask;
396
397 case TUSB_INT_SRC:
398 case TUSB_INT_SRC_SET: /* TODO: What do these two return? */
399 case TUSB_INT_SRC_CLEAR:
400 return s->intr;
401 case TUSB_INT_MASK:
402 return s->mask;
403
404 case TUSB_GPIO_REV:
405 return 0x30;
406 case TUSB_GPIO_CONF:
407 return s->gpio_config;
408
409 case TUSB_DMA_CTRL_REV:
410 return 0x30;
411 case TUSB_DMA_REQ_CONF:
412 return s->dma_config;
413 case TUSB_EP0_CONF:
414 return s->ep0_config;
415 case TUSB_EP_IN_SIZE ... (TUSB_EP_IN_SIZE + 0x3b):
416 epnum = (offset - TUSB_EP_IN_SIZE) >> 2;
417 return s->tx_config[epnum];
418 case TUSB_DMA_EP_MAP:
419 return s->dma_map;
420 case TUSB_EP_OUT_SIZE ... (TUSB_EP_OUT_SIZE + 0x3b):
421 epnum = (offset - TUSB_EP_OUT_SIZE) >> 2;
422 return s->rx_config[epnum];
423 case TUSB_EP_MAX_PACKET_SIZE_OFFSET ...
424 (TUSB_EP_MAX_PACKET_SIZE_OFFSET + 0x3b):
425 return 0x00000000; /* TODO */
426 case TUSB_WAIT_COUNT:
427 return 0x00; /* TODO */
428
429 case TUSB_SCRATCH_PAD:
430 return s->scratch;
431
432 case TUSB_PROD_TEST_RESET:
433 return s->test_reset;
434
435 /* DIE IDs */
436 case TUSB_DIDR1_LO:
437 return 0xa9453c59;
438 case TUSB_DIDR1_HI:
439 return 0x54059adf;
440 }
441
442 printf("%s: unknown register at %03x\n", __func__, offset);
443 return 0;
444 }
445
tusb_async_writeb(void * opaque,hwaddr addr,uint32_t value)446 static void tusb_async_writeb(void *opaque, hwaddr addr,
447 uint32_t value)
448 {
449 TUSBState *s = (TUSBState *) opaque;
450
451 switch (addr & 0xfff) {
452 case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff):
453 musb_write[0](s->musb, addr & 0x1ff, value);
454 break;
455
456 case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff):
457 musb_write[0](s->musb, 0x20 + ((addr >> 3) & 0x3c), value);
458 break;
459
460 default:
461 printf("%s: unknown register at %03x\n",
462 __func__, (int) (addr & 0xfff));
463 return;
464 }
465 }
466
tusb_async_writeh(void * opaque,hwaddr addr,uint32_t value)467 static void tusb_async_writeh(void *opaque, hwaddr addr,
468 uint32_t value)
469 {
470 TUSBState *s = (TUSBState *) opaque;
471
472 switch (addr & 0xfff) {
473 case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff):
474 musb_write[1](s->musb, addr & 0x1ff, value);
475 break;
476
477 case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff):
478 musb_write[1](s->musb, 0x20 + ((addr >> 3) & 0x3c), value);
479 break;
480
481 default:
482 printf("%s: unknown register at %03x\n",
483 __func__, (int) (addr & 0xfff));
484 return;
485 }
486 }
487
tusb_async_writew(void * opaque,hwaddr addr,uint32_t value)488 static void tusb_async_writew(void *opaque, hwaddr addr,
489 uint32_t value)
490 {
491 TUSBState *s = (TUSBState *) opaque;
492 int offset = addr & 0xfff;
493 int epnum;
494
495 switch (offset) {
496 case TUSB_VLYNQ_CTRL:
497 break;
498
499 case TUSB_BASE_OFFSET ... (TUSB_BASE_OFFSET | 0x1ff):
500 musb_write[2](s->musb, offset & 0x1ff, value);
501 break;
502
503 case TUSB_FIFO_BASE ... (TUSB_FIFO_BASE | 0x1ff):
504 musb_write[2](s->musb, 0x20 + ((addr >> 3) & 0x3c), value);
505 break;
506
507 case TUSB_DEV_CONF:
508 s->dev_config = value;
509 s->host_mode = (value & TUSB_DEV_CONF_USB_HOST_MODE);
510 if (value & TUSB_DEV_CONF_PROD_TEST_MODE)
511 hw_error("%s: Product Test mode not allowed\n", __func__);
512 break;
513
514 case TUSB_PHY_OTG_CTRL_ENABLE:
515 case TUSB_PHY_OTG_CTRL:
516 return; /* TODO */
517 case TUSB_DEV_OTG_TIMER:
518 s->otg_timer_val = value;
519 if (value & TUSB_DEV_OTG_TIMER_ENABLE)
520 timer_mod(s->otg_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
521 muldiv64(TUSB_DEV_OTG_TIMER_VAL(value),
522 NANOSECONDS_PER_SECOND, TUSB_DEVCLOCK));
523 else
524 timer_del(s->otg_timer);
525 break;
526
527 case TUSB_PRCM_CONF:
528 s->prcm_config = value;
529 break;
530 case TUSB_PRCM_MNGMT:
531 s->prcm_mngmt = value;
532 break;
533 case TUSB_PRCM_WAKEUP_CLEAR:
534 break;
535 case TUSB_PRCM_WAKEUP_MASK:
536 s->wkup_mask = value;
537 break;
538
539 case TUSB_PULLUP_1_CTRL:
540 s->pullup[0] = value;
541 break;
542 case TUSB_PULLUP_2_CTRL:
543 s->pullup[1] = value;
544 break;
545 case TUSB_INT_CTRL_CONF:
546 s->control_config = value;
547 tusb_intr_update(s);
548 break;
549
550 case TUSB_USBIP_INT_SET:
551 s->usbip_intr |= value;
552 tusb_usbip_intr_update(s);
553 break;
554 case TUSB_USBIP_INT_CLEAR:
555 s->usbip_intr &= ~value;
556 tusb_usbip_intr_update(s);
557 musb_core_intr_clear(s->musb, ~value);
558 break;
559 case TUSB_USBIP_INT_MASK:
560 s->usbip_mask = value;
561 tusb_usbip_intr_update(s);
562 break;
563
564 case TUSB_DMA_INT_SET:
565 s->dma_intr |= value;
566 tusb_dma_intr_update(s);
567 break;
568 case TUSB_DMA_INT_CLEAR:
569 s->dma_intr &= ~value;
570 tusb_dma_intr_update(s);
571 break;
572 case TUSB_DMA_INT_MASK:
573 s->dma_mask = value;
574 tusb_dma_intr_update(s);
575 break;
576
577 case TUSB_GPIO_INT_SET:
578 s->gpio_intr |= value;
579 tusb_gpio_intr_update(s);
580 break;
581 case TUSB_GPIO_INT_CLEAR:
582 s->gpio_intr &= ~value;
583 tusb_gpio_intr_update(s);
584 break;
585 case TUSB_GPIO_INT_MASK:
586 s->gpio_mask = value;
587 tusb_gpio_intr_update(s);
588 break;
589
590 case TUSB_INT_SRC_SET:
591 s->intr |= value;
592 tusb_intr_update(s);
593 break;
594 case TUSB_INT_SRC_CLEAR:
595 s->intr &= ~value;
596 tusb_intr_update(s);
597 break;
598 case TUSB_INT_MASK:
599 s->mask = value;
600 tusb_intr_update(s);
601 break;
602
603 case TUSB_GPIO_CONF:
604 s->gpio_config = value;
605 break;
606 case TUSB_DMA_REQ_CONF:
607 s->dma_config = value;
608 break;
609 case TUSB_EP0_CONF:
610 s->ep0_config = value & 0x1ff;
611 musb_set_size(s->musb, 0, TUSB_EP0_CONFIG_XFR_SIZE(value),
612 value & TUSB_EP0_CONFIG_DIR_TX);
613 break;
614 case TUSB_EP_IN_SIZE ... (TUSB_EP_IN_SIZE + 0x3b):
615 epnum = (offset - TUSB_EP_IN_SIZE) >> 2;
616 s->tx_config[epnum] = value;
617 musb_set_size(s->musb, epnum + 1, TUSB_EP_CONFIG_XFR_SIZE(value), 1);
618 break;
619 case TUSB_DMA_EP_MAP:
620 s->dma_map = value;
621 break;
622 case TUSB_EP_OUT_SIZE ... (TUSB_EP_OUT_SIZE + 0x3b):
623 epnum = (offset - TUSB_EP_OUT_SIZE) >> 2;
624 s->rx_config[epnum] = value;
625 musb_set_size(s->musb, epnum + 1, TUSB_EP_CONFIG_XFR_SIZE(value), 0);
626 break;
627 case TUSB_EP_MAX_PACKET_SIZE_OFFSET ...
628 (TUSB_EP_MAX_PACKET_SIZE_OFFSET + 0x3b):
629 return; /* TODO */
630 case TUSB_WAIT_COUNT:
631 return; /* TODO */
632
633 case TUSB_SCRATCH_PAD:
634 s->scratch = value;
635 break;
636
637 case TUSB_PROD_TEST_RESET:
638 s->test_reset = value;
639 break;
640
641 default:
642 printf("%s: unknown register at %03x\n", __func__, offset);
643 return;
644 }
645 }
646
tusb_async_readfn(void * opaque,hwaddr addr,unsigned size)647 static uint64_t tusb_async_readfn(void *opaque, hwaddr addr, unsigned size)
648 {
649 switch (size) {
650 case 1:
651 return tusb_async_readb(opaque, addr);
652 case 2:
653 return tusb_async_readh(opaque, addr);
654 case 4:
655 return tusb_async_readw(opaque, addr);
656 default:
657 g_assert_not_reached();
658 }
659 }
660
tusb_async_writefn(void * opaque,hwaddr addr,uint64_t value,unsigned size)661 static void tusb_async_writefn(void *opaque, hwaddr addr,
662 uint64_t value, unsigned size)
663 {
664 switch (size) {
665 case 1:
666 tusb_async_writeb(opaque, addr, value);
667 break;
668 case 2:
669 tusb_async_writeh(opaque, addr, value);
670 break;
671 case 4:
672 tusb_async_writew(opaque, addr, value);
673 break;
674 default:
675 g_assert_not_reached();
676 }
677 }
678
679 static const MemoryRegionOps tusb_async_ops = {
680 .read = tusb_async_readfn,
681 .write = tusb_async_writefn,
682 .valid.min_access_size = 1,
683 .valid.max_access_size = 4,
684 .endianness = DEVICE_NATIVE_ENDIAN,
685 };
686
tusb_otg_tick(void * opaque)687 static void tusb_otg_tick(void *opaque)
688 {
689 TUSBState *s = (TUSBState *) opaque;
690
691 s->otg_timer_val = 0;
692 s->intr |= TUSB_INT_SRC_OTG_TIMEOUT;
693 tusb_intr_update(s);
694 }
695
tusb_power_tick(void * opaque)696 static void tusb_power_tick(void *opaque)
697 {
698 TUSBState *s = (TUSBState *) opaque;
699
700 if (s->power) {
701 s->intr_ok = ~0;
702 tusb_intr_update(s);
703 }
704 }
705
tusb_musb_core_intr(void * opaque,int source,int level)706 static void tusb_musb_core_intr(void *opaque, int source, int level)
707 {
708 TUSBState *s = (TUSBState *) opaque;
709 uint16_t otg_status = s->otg_status;
710
711 switch (source) {
712 case musb_set_vbus:
713 if (level)
714 otg_status |= TUSB_DEV_OTG_STAT_VBUS_VALID;
715 else
716 otg_status &= ~TUSB_DEV_OTG_STAT_VBUS_VALID;
717
718 /* XXX: only if TUSB_PHY_OTG_CTRL_OTG_VBUS_DET_EN set? */
719 /* XXX: only if TUSB_PRCM_MNGMT_OTG_VBUS_DET_EN set? */
720 if (s->otg_status != otg_status) {
721 s->otg_status = otg_status;
722 s->intr |= TUSB_INT_SRC_VBUS_SENSE_CHNG;
723 tusb_intr_update(s);
724 }
725 break;
726
727 case musb_set_session:
728 /* XXX: only if TUSB_PHY_OTG_CTRL_OTG_SESS_END_EN set? */
729 /* XXX: only if TUSB_PRCM_MNGMT_OTG_SESS_END_EN set? */
730 if (level) {
731 s->otg_status |= TUSB_DEV_OTG_STAT_SESS_VALID;
732 s->otg_status &= ~TUSB_DEV_OTG_STAT_SESS_END;
733 } else {
734 s->otg_status &= ~TUSB_DEV_OTG_STAT_SESS_VALID;
735 s->otg_status |= TUSB_DEV_OTG_STAT_SESS_END;
736 }
737
738 /* XXX: some IRQ or anything? */
739 break;
740
741 case musb_irq_tx:
742 case musb_irq_rx:
743 s->usbip_intr = musb_core_intr_get(s->musb);
744 /* Fall through. */
745 default:
746 if (level)
747 s->intr |= 1 << source;
748 else
749 s->intr &= ~(1 << source);
750 tusb_intr_update(s);
751 break;
752 }
753 }
754
tusb6010_power(TUSBState * s,int on)755 static void tusb6010_power(TUSBState *s, int on)
756 {
757 if (!on) {
758 s->power = 0;
759 } else if (!s->power && on) {
760 s->power = 1;
761 /* Pull the interrupt down after TUSB6010 comes up. */
762 s->intr_ok = 0;
763 tusb_intr_update(s);
764 timer_mod(s->pwr_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
765 NANOSECONDS_PER_SECOND / 2);
766 }
767 }
768
tusb6010_irq(void * opaque,int source,int level)769 static void tusb6010_irq(void *opaque, int source, int level)
770 {
771 if (source) {
772 tusb_musb_core_intr(opaque, source - 1, level);
773 } else {
774 tusb6010_power(opaque, level);
775 }
776 }
777
tusb6010_reset(DeviceState * dev)778 static void tusb6010_reset(DeviceState *dev)
779 {
780 TUSBState *s = TUSB6010(dev);
781 int i;
782
783 s->test_reset = TUSB_PROD_TEST_RESET_VAL;
784 s->host_mode = 0;
785 s->dev_config = 0;
786 s->otg_status = 0; /* !TUSB_DEV_OTG_STAT_ID_STATUS means host mode */
787 s->power = 0;
788 s->mask = 0xffffffff;
789 s->intr = 0x00000000;
790 s->otg_timer_val = 0;
791 s->scratch = 0;
792 s->prcm_config = 0;
793 s->prcm_mngmt = 0;
794 s->intr_ok = 0;
795 s->usbip_intr = 0;
796 s->usbip_mask = 0;
797 s->gpio_intr = 0;
798 s->gpio_mask = 0;
799 s->gpio_config = 0;
800 s->dma_intr = 0;
801 s->dma_mask = 0;
802 s->dma_map = 0;
803 s->dma_config = 0;
804 s->ep0_config = 0;
805 s->wkup_mask = 0;
806 s->pullup[0] = s->pullup[1] = 0;
807 s->control_config = 0;
808 for (i = 0; i < 15; i++) {
809 s->rx_config[i] = s->tx_config[i] = 0;
810 }
811 musb_reset(s->musb);
812 }
813
tusb6010_realize(DeviceState * dev,Error ** errp)814 static void tusb6010_realize(DeviceState *dev, Error **errp)
815 {
816 TUSBState *s = TUSB6010(dev);
817 SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
818
819 s->otg_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, tusb_otg_tick, s);
820 s->pwr_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, tusb_power_tick, s);
821 memory_region_init_io(&s->iomem[1], OBJECT(s), &tusb_async_ops, s,
822 "tusb-async", UINT32_MAX);
823 sysbus_init_mmio(sbd, &s->iomem[0]);
824 sysbus_init_mmio(sbd, &s->iomem[1]);
825 sysbus_init_irq(sbd, &s->irq);
826 qdev_init_gpio_in(dev, tusb6010_irq, musb_irq_max + 1);
827 s->musb = musb_init(dev, 1);
828 }
829
tusb6010_class_init(ObjectClass * klass,void * data)830 static void tusb6010_class_init(ObjectClass *klass, void *data)
831 {
832 DeviceClass *dc = DEVICE_CLASS(klass);
833
834 dc->realize = tusb6010_realize;
835 dc->reset = tusb6010_reset;
836 }
837
838 static const TypeInfo tusb6010_info = {
839 .name = TYPE_TUSB6010,
840 .parent = TYPE_SYS_BUS_DEVICE,
841 .instance_size = sizeof(TUSBState),
842 .class_init = tusb6010_class_init,
843 };
844
tusb6010_register_types(void)845 static void tusb6010_register_types(void)
846 {
847 type_register_static(&tusb6010_info);
848 }
849
850 type_init(tusb6010_register_types)
851