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10#ifndef __MTU3_H__
11#define __MTU3_H__
12
13#include <linux/device.h>
14#include <linux/dmapool.h>
15#include <linux/extcon.h>
16#include <linux/interrupt.h>
17#include <linux/list.h>
18#include <linux/phy/phy.h>
19#include <linux/regulator/consumer.h>
20#include <linux/usb.h>
21#include <linux/usb/ch9.h>
22#include <linux/usb/gadget.h>
23#include <linux/usb/otg.h>
24
25struct mtu3;
26struct mtu3_ep;
27struct mtu3_request;
28
29#include "mtu3_hw_regs.h"
30#include "mtu3_qmu.h"
31
32#define MU3D_EP_TXCR0(epnum) (U3D_TX1CSR0 + (((epnum) - 1) * 0x10))
33#define MU3D_EP_TXCR1(epnum) (U3D_TX1CSR1 + (((epnum) - 1) * 0x10))
34#define MU3D_EP_TXCR2(epnum) (U3D_TX1CSR2 + (((epnum) - 1) * 0x10))
35
36#define MU3D_EP_RXCR0(epnum) (U3D_RX1CSR0 + (((epnum) - 1) * 0x10))
37#define MU3D_EP_RXCR1(epnum) (U3D_RX1CSR1 + (((epnum) - 1) * 0x10))
38#define MU3D_EP_RXCR2(epnum) (U3D_RX1CSR2 + (((epnum) - 1) * 0x10))
39
40#define USB_QMU_TQHIAR(epnum) (U3D_TXQHIAR1 + (((epnum) - 1) * 0x4))
41#define USB_QMU_RQHIAR(epnum) (U3D_RXQHIAR1 + (((epnum) - 1) * 0x4))
42
43#define USB_QMU_RQCSR(epnum) (U3D_RXQCSR1 + (((epnum) - 1) * 0x10))
44#define USB_QMU_RQSAR(epnum) (U3D_RXQSAR1 + (((epnum) - 1) * 0x10))
45#define USB_QMU_RQCPR(epnum) (U3D_RXQCPR1 + (((epnum) - 1) * 0x10))
46
47#define USB_QMU_TQCSR(epnum) (U3D_TXQCSR1 + (((epnum) - 1) * 0x10))
48#define USB_QMU_TQSAR(epnum) (U3D_TXQSAR1 + (((epnum) - 1) * 0x10))
49#define USB_QMU_TQCPR(epnum) (U3D_TXQCPR1 + (((epnum) - 1) * 0x10))
50
51#define SSUSB_U3_CTRL(p) (U3D_SSUSB_U3_CTRL_0P + ((p) * 0x08))
52#define SSUSB_U2_CTRL(p) (U3D_SSUSB_U2_CTRL_0P + ((p) * 0x08))
53
54#define MTU3_DRIVER_NAME "mtu3"
55#define DMA_ADDR_INVALID (~(dma_addr_t)0)
56
57#define MTU3_EP_ENABLED BIT(0)
58#define MTU3_EP_STALL BIT(1)
59#define MTU3_EP_WEDGE BIT(2)
60#define MTU3_EP_BUSY BIT(3)
61
62#define MTU3_U3_IP_SLOT_DEFAULT 2
63#define MTU3_U2_IP_SLOT_DEFAULT 1
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72#define MTU3_TRUNK_VERS_1003 0x1003
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81#define MTU3_EP_FIFO_UNIT (1 << 9)
82#define MTU3_FIFO_BIT_SIZE 128
83#define MTU3_U2_IP_EP0_FIFO_SIZE 64
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89#define EP0_RESPONSE_BUF 6
90
91
92enum mtu3_speed {
93 MTU3_SPEED_INACTIVE = 0,
94 MTU3_SPEED_FULL = 1,
95 MTU3_SPEED_HIGH = 3,
96 MTU3_SPEED_SUPER = 4,
97 MTU3_SPEED_SUPER_PLUS = 5,
98};
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110enum mtu3_g_ep0_state {
111 MU3D_EP0_STATE_SETUP = 1,
112 MU3D_EP0_STATE_TX,
113 MU3D_EP0_STATE_RX,
114 MU3D_EP0_STATE_TX_END,
115 MU3D_EP0_STATE_STALL,
116};
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125enum mtu3_dr_force_mode {
126 MTU3_DR_FORCE_NONE = 0,
127 MTU3_DR_FORCE_HOST,
128 MTU3_DR_FORCE_DEVICE,
129};
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136struct mtu3_fifo_info {
137 u32 base;
138 u32 limit;
139 DECLARE_BITMAP(bitmap, MTU3_FIFO_BIT_SIZE);
140};
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169struct qmu_gpd {
170 __le32 dw0_info;
171 __le32 next_gpd;
172 __le32 buffer;
173 __le32 dw3_info;
174} __packed;
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184struct mtu3_gpd_ring {
185 dma_addr_t dma;
186 struct qmu_gpd *start;
187 struct qmu_gpd *end;
188 struct qmu_gpd *enqueue;
189 struct qmu_gpd *dequeue;
190};
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206struct otg_switch_mtk {
207 struct regulator *vbus;
208 struct extcon_dev *edev;
209 struct notifier_block vbus_nb;
210 struct work_struct vbus_work;
211 unsigned long vbus_event;
212 struct notifier_block id_nb;
213 struct work_struct id_work;
214 unsigned long id_event;
215 bool is_u3_drd;
216 bool manual_drd_enabled;
217};
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239struct ssusb_mtk {
240 struct device *dev;
241 struct mtu3 *u3d;
242 void __iomem *mac_base;
243 void __iomem *ippc_base;
244 struct phy **phys;
245 int num_phys;
246
247 struct regulator *vusb33;
248 struct clk *sys_clk;
249 struct clk *ref_clk;
250 struct clk *mcu_clk;
251 struct clk *dma_clk;
252
253 struct otg_switch_mtk otg_switch;
254 enum usb_dr_mode dr_mode;
255 bool is_host;
256 int u2_ports;
257 int u3_ports;
258 int u3p_dis_msk;
259 struct dentry *dbgfs_root;
260
261 bool uwk_en;
262 struct regmap *uwk;
263 u32 uwk_reg_base;
264 u32 uwk_vers;
265};
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271struct mtu3_ep {
272 struct usb_ep ep;
273 char name[12];
274 struct mtu3 *mtu;
275 u8 epnum;
276 u8 type;
277 u8 is_in;
278 u16 maxp;
279 int slot;
280 u32 fifo_size;
281 u32 fifo_addr;
282 u32 fifo_seg_size;
283 struct mtu3_fifo_info *fifo;
284
285 struct list_head req_list;
286 struct mtu3_gpd_ring gpd_ring;
287 const struct usb_ss_ep_comp_descriptor *comp_desc;
288 const struct usb_endpoint_descriptor *desc;
289
290 int flags;
291 u8 wedged;
292 u8 busy;
293};
294
295struct mtu3_request {
296 struct usb_request request;
297 struct list_head list;
298 struct mtu3_ep *mep;
299 struct mtu3 *mtu;
300 struct qmu_gpd *gpd;
301 int epnum;
302};
303
304static inline struct ssusb_mtk *dev_to_ssusb(struct device *dev)
305{
306 return dev_get_drvdata(dev);
307}
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321struct mtu3 {
322 spinlock_t lock;
323 struct ssusb_mtk *ssusb;
324 struct device *dev;
325 void __iomem *mac_base;
326 void __iomem *ippc_base;
327 int irq;
328
329 struct mtu3_fifo_info tx_fifo;
330 struct mtu3_fifo_info rx_fifo;
331
332 struct mtu3_ep *ep_array;
333 struct mtu3_ep *in_eps;
334 struct mtu3_ep *out_eps;
335 struct mtu3_ep *ep0;
336 int num_eps;
337 int slot;
338 int active_ep;
339
340 struct dma_pool *qmu_gpd_pool;
341 enum mtu3_g_ep0_state ep0_state;
342 struct usb_gadget g;
343 struct usb_gadget_driver *gadget_driver;
344 struct mtu3_request ep0_req;
345 u8 setup_buf[EP0_RESPONSE_BUF];
346 u32 max_speed;
347
348 unsigned is_active:1;
349 unsigned may_wakeup:1;
350 unsigned is_self_powered:1;
351 unsigned test_mode:1;
352 unsigned softconnect:1;
353 unsigned u1_enable:1;
354 unsigned u2_enable:1;
355 unsigned is_u3_ip:1;
356 unsigned delayed_status:1;
357 unsigned gen2cp:1;
358
359 u8 address;
360 u8 test_mode_nr;
361 u32 hw_version;
362};
363
364static inline struct mtu3 *gadget_to_mtu3(struct usb_gadget *g)
365{
366 return container_of(g, struct mtu3, g);
367}
368
369static inline int is_first_entry(const struct list_head *list,
370 const struct list_head *head)
371{
372 return list_is_last(head, list);
373}
374
375static inline struct mtu3_request *to_mtu3_request(struct usb_request *req)
376{
377 return req ? container_of(req, struct mtu3_request, request) : NULL;
378}
379
380static inline struct mtu3_ep *to_mtu3_ep(struct usb_ep *ep)
381{
382 return ep ? container_of(ep, struct mtu3_ep, ep) : NULL;
383}
384
385static inline struct mtu3_request *next_request(struct mtu3_ep *mep)
386{
387 return list_first_entry_or_null(&mep->req_list, struct mtu3_request,
388 list);
389}
390
391static inline void mtu3_writel(void __iomem *base, u32 offset, u32 data)
392{
393 writel(data, base + offset);
394}
395
396static inline u32 mtu3_readl(void __iomem *base, u32 offset)
397{
398 return readl(base + offset);
399}
400
401static inline void mtu3_setbits(void __iomem *base, u32 offset, u32 bits)
402{
403 void __iomem *addr = base + offset;
404 u32 tmp = readl(addr);
405
406 writel((tmp | (bits)), addr);
407}
408
409static inline void mtu3_clrbits(void __iomem *base, u32 offset, u32 bits)
410{
411 void __iomem *addr = base + offset;
412 u32 tmp = readl(addr);
413
414 writel((tmp & ~(bits)), addr);
415}
416
417int ssusb_check_clocks(struct ssusb_mtk *ssusb, u32 ex_clks);
418struct usb_request *mtu3_alloc_request(struct usb_ep *ep, gfp_t gfp_flags);
419void mtu3_free_request(struct usb_ep *ep, struct usb_request *req);
420void mtu3_req_complete(struct mtu3_ep *mep,
421 struct usb_request *req, int status);
422
423int mtu3_config_ep(struct mtu3 *mtu, struct mtu3_ep *mep,
424 int interval, int burst, int mult);
425void mtu3_deconfig_ep(struct mtu3 *mtu, struct mtu3_ep *mep);
426void mtu3_ep_stall_set(struct mtu3_ep *mep, bool set);
427void mtu3_ep0_setup(struct mtu3 *mtu);
428void mtu3_start(struct mtu3 *mtu);
429void mtu3_stop(struct mtu3 *mtu);
430void mtu3_dev_on_off(struct mtu3 *mtu, int is_on);
431
432int mtu3_gadget_setup(struct mtu3 *mtu);
433void mtu3_gadget_cleanup(struct mtu3 *mtu);
434void mtu3_gadget_reset(struct mtu3 *mtu);
435void mtu3_gadget_suspend(struct mtu3 *mtu);
436void mtu3_gadget_resume(struct mtu3 *mtu);
437void mtu3_gadget_disconnect(struct mtu3 *mtu);
438
439irqreturn_t mtu3_ep0_isr(struct mtu3 *mtu);
440extern const struct usb_ep_ops mtu3_ep0_ops;
441
442#endif
443