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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-12-28 19:40:37 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-12-28 19:40:37 +0000 |
commit | cd6fa255927b1c300f6f8a6cea19ade313bb9716 (patch) | |
tree | 2932d8d13e61a30319ca9bdb61e8de342dec19a8 /nuttx/arch/mips/src/pic32mx | |
parent | fa9855b072dbd8e8dcb419c8e99fd80109278c0c (diff) | |
download | px4-nuttx-cd6fa255927b1c300f6f8a6cea19ade313bb9716.tar.gz px4-nuttx-cd6fa255927b1c300f6f8a6cea19ade313bb9716.tar.bz2 px4-nuttx-cd6fa255927b1c300f6f8a6cea19ade313bb9716.zip |
A little STM32 logic in the PIC32 USB driver
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4235 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/arch/mips/src/pic32mx')
-rw-r--r-- | nuttx/arch/mips/src/pic32mx/pic32mx-internal.h | 27 | ||||
-rw-r--r-- | nuttx/arch/mips/src/pic32mx/pic32mx-usbdev.c | 1486 | ||||
-rw-r--r-- | nuttx/arch/mips/src/pic32mx/pic32mx-usbotg.h | 6 |
3 files changed, 596 insertions, 923 deletions
diff --git a/nuttx/arch/mips/src/pic32mx/pic32mx-internal.h b/nuttx/arch/mips/src/pic32mx/pic32mx-internal.h index db3d2eda3..42c9c189b 100644 --- a/nuttx/arch/mips/src/pic32mx/pic32mx-internal.h +++ b/nuttx/arch/mips/src/pic32mx/pic32mx-internal.h @@ -551,32 +551,33 @@ EXTERN void pic32mx_dmadump(DMA_HANDLE handle, const struct pic32mx_dmaregs_s *r #endif #endif -/************************************************************************************ +/**************************************************************************** * Name: pic32mx_usbpullup * * Description: - * If USB is supported and the board supports a pullup via GPIO (for USB software - * connect and disconnect), then the board software must provide stm32_pullup. - * See include/nuttx/usb/usbdev.h for additional description of this method. - * Alternatively, if no pull-up GPIO the following EXTERN can be redefined to be - * NULL. + * If USB is supported and the board supports a pullup via GPIO (for USB + * software connect and disconnect), then the board software must provide + * stm32_pullup. See include/nuttx/usb/usbdev.h for additional description + * of this method. Alternatively, if no pull-up GPIO the following EXTERN + * can be redefined to be NULL. * - ************************************************************************************/ + ****************************************************************************/ #ifdef CONFIG_PIC32MX_USBDEV +struct usbdev_s; EXTERN int pic32mx_usbpullup(FAR struct usbdev_s *dev, bool enable); #endif -/************************************************************************************ +/**************************************************************************** * Name: pic32mx_usbsuspend * * Description: - * Board logic must provide the stm32_usbsuspend logic if the USBDEV driver is - * used. This function is called whenever the USB enters or leaves suspend mode. - * This is an opportunity for the board logic to shutdown clocks, power, etc. - * while the USB is suspended. + * Board logic must provide the stm32_usbsuspend logic if the USBDEV driver + * is used. This function is called whenever the USB enters or leaves + * suspend mode. This is an opportunity for the board logic to shutdown + * clocks, power, etc. while the USB is suspended. * - ************************************************************************************/ + ****************************************************************************/ #ifdef CONFIG_PIC32MX_USBDEV EXTERN void pic32mx_usbsuspend(FAR struct usbdev_s *dev, bool resume); diff --git a/nuttx/arch/mips/src/pic32mx/pic32mx-usbdev.c b/nuttx/arch/mips/src/pic32mx/pic32mx-usbdev.c index 16cb57501..d1daac68a 100644 --- a/nuttx/arch/mips/src/pic32mx/pic32mx-usbdev.c +++ b/nuttx/arch/mips/src/pic32mx/pic32mx-usbdev.c @@ -74,10 +74,6 @@ # define CONFIG_USBDEV_EP0_MAXSIZE 64 #endif -#ifndef CONFIG_USB_PRI -# define CONFIG_USB_PRI NVIC_SYSH_PRIORITY_DEFAULT -#endif - /* Extremely detailed register debug that you would normally never want * enabled. */ @@ -87,7 +83,6 @@ #endif /* Interrupts ***************************************************************/ - /* Initial interrupt sets */ #ifdef CONFIG_USB_SOFINTS @@ -133,6 +128,151 @@ #define PIC32MX_ENDP_BIT(ep) (1 << (ep)) #define PIC32MX_ENDP_ALLSET 0xff +/* Endpoint Definitions */ + +#ifndef CONFIG_USB_PINGPONG +# define USB_NEXT_PINGPONG 0 + +# define EP0_OUT_EVEN 0 +# define EP0_OUT_ODD 0 +# define EP0_IN_EVEN 1 +# define EP0_IN_ODD 1 +# define EP1_OUT_EVEN 2 +# define EP1_OUT_ODD 2 +# define EP1_IN_EVEN 3 +# define EP1_IN_ODD 3 +# define EP2_OUT_EVEN 4 +# define EP2_OUT_ODD 4 +# define EP2_IN_EVEN 5 +# define EP2_IN_ODD 5 +# define EP3_OUT_EVEN 6 +# define EP3_OUT_ODD 6 +# define EP3_IN_EVEN 7 +# define EP3_IN_ODD 7 +# define EP4_OUT_EVEN 8 +# define EP4_OUT_ODD 8 +# define EP4_IN_EVEN 9 +# define EP4_IN_ODD 9 +# define EP5_OUT_EVEN 10 +# define EP5_OUT_ODD 10 +# define EP5_IN_EVEN 11 +# define EP5_IN_ODD 11 +# define EP6_OUT_EVEN 12 +# define EP6_OUT_ODD 12 +# define EP6_IN_EVEN 13 +# define EP6_IN_ODD 13 +# define EP7_OUT_EVEN 14 +# define EP7_OUT_ODD 14 +# define EP7_IN_EVEN 15 +# define EP7_IN_ODD 15 +# define EP8_OUT_EVEN 16 +# define EP8_OUT_ODD 16 +# define EP8_IN_EVEN 17 +# define EP8_IN_ODD 17 +# define EP9_OUT_EVEN 18 +# define EP9_OUT_ODD 18 +# define EP9_IN_EVEN 19 +# define EP9_IN_ODD 19 +# define EP10_OUT_EVEN 20 +# define EP10_OUT_ODD 20 +# define EP10_IN_EVEN 21 +# define EP10_IN_ODD 21 +# define EP11_OUT_EVEN 22 +# define EP11_OUT_ODD 22 +# define EP11_IN_EVEN 23 +# define EP11_IN_ODD 23 +# define EP12_OUT_EVEN 24 +# define EP12_OUT_ODD 24 +# define EP12_IN_EVEN 25 +# define EP12_IN_ODD 25 +# define EP13_OUT_EVEN 26 +# define EP13_OUT_ODD 26 +# define EP13_IN_EVEN 27 +# define EP13_IN_ODD 27 +# define EP14_OUT_EVEN 28 +# define EP14_OUT_ODD 28 +# define EP14_IN_EVEN 29 +# define EP14_IN_ODD 29 +# define EP15_OUT_EVEN 30 +# define EP15_OUT_ODD 30 +# define EP15_IN_EVEN 31 +# define EP15_IN_ODD 31 + +# define EP(ep,dir,pp) (2*ep+dir) +# define BD(ep,dir,pp) ((8 * ep) + (4 * dir)) + +#else +# define USB_NEXT_PINGPONG USB_BDT_DTS + +# define EP0_OUT_EVEN 0 +# define EP0_OUT_ODD 1 +# define EP0_IN_EVEN 2 +# define EP0_IN_ODD 3 +# define EP1_OUT_EVEN 4 +# define EP1_OUT_ODD 5 +# define EP1_IN_EVEN 6 +# define EP1_IN_ODD 7 +# define EP2_OUT_EVEN 8 +# define EP2_OUT_ODD 9 +# define EP2_IN_EVEN 10 +# define EP2_IN_ODD 11 +# define EP3_OUT_EVEN 12 +# define EP3_OUT_ODD 13 +# define EP3_IN_EVEN 14 +# define EP3_IN_ODD 15 +# define EP4_OUT_EVEN 16 +# define EP4_OUT_ODD 17 +# define EP4_IN_EVEN 18 +# define EP4_IN_ODD 19 +# define EP5_OUT_EVEN 20 +# define EP5_OUT_ODD 21 +# define EP5_IN_EVEN 22 +# define EP5_IN_ODD 23 +# define EP6_OUT_EVEN 24 +# define EP6_OUT_ODD 25 +# define EP6_IN_EVEN 26 +# define EP6_IN_ODD 27 +# define EP7_OUT_EVEN 28 +# define EP7_OUT_ODD 29 +# define EP7_IN_EVEN 30 +# define EP7_IN_ODD 31 +# define EP8_OUT_EVEN 32 +# define EP8_OUT_ODD 33 +# define EP8_IN_EVEN 34 +# define EP8_IN_ODD 35 +# define EP9_OUT_EVEN 36 +# define EP9_OUT_ODD 37 +# define EP9_IN_EVEN 38 +# define EP9_IN_ODD 39 +# define EP10_OUT_EVEN 40 +# define EP10_OUT_ODD 41 +# define EP10_IN_EVEN 42 +# define EP10_IN_ODD 43 +# define EP11_OUT_EVEN 44 +# define EP11_OUT_ODD 45 +# define EP11_IN_EVEN 46 +# define EP11_IN_ODD 47 +# define EP12_OUT_EVEN 48 +# define EP12_OUT_ODD 49 +# define EP12_IN_EVEN 50 +# define EP12_IN_ODD 51 +# define EP13_OUT_EVEN 52 +# define EP13_OUT_ODD 53 +# define EP13_IN_EVEN 54 +# define EP13_IN_ODD 55 +# define EP14_OUT_EVEN 56 +# define EP14_OUT_ODD 57 +# define EP14_IN_EVEN 58 +# define EP14_IN_ODD 59 +# define EP15_OUT_EVEN 60 +# define EP15_OUT_ODD 61 +# define EP15_IN_EVEN 62 +# define EP15_IN_ODD 63 + +# define EP(ep,dir,pp) (4*ep+2*dir+pp) +# define BD(ep,dir,pp) (8*(4*ep+2*dir+pp)) +#endif + /* Packet sizes. We us a fixed 64 max packet size for all endpoint types */ #define PIC32MX_MAXPACKET_SHIFT (6) @@ -152,13 +292,6 @@ #define REQRECIPIENT_MASK (USB_REQ_TYPE_MASK | USB_REQ_RECIPIENT_MASK) -/* Endpoint register masks (handling toggle fields) */ - -#define EPR_NOTOG_MASK (USB_EPR_CTR_RX | USB_EPR_SETUP | USB_EPR_EPTYPE_MASK |\ - USB_EPR_EP_KIND | USB_EPR_CTR_TX | USB_EPR_EA_MASK) -#define EPR_TXDTOG_MASK (USB_EPR_STATTX_MASK | EPR_NOTOG_MASK) -#define EPR_RXDTOG_MASK (USB_EPR_STATRX_MASK | EPR_NOTOG_MASK) - /* Request queue operations *************************************************/ #define pic32mx_rqempty(ep) ((ep)->head == NULL) @@ -183,9 +316,7 @@ #define PIC32MX_TRACEERR_DISPATCHSTALL 0x000e #define PIC32MX_TRACEERR_DRIVER 0x000f #define PIC32MX_TRACEERR_DRIVERREGISTERED 0x0010 -#define PIC32MX_TRACEERR_EP0BADCTR 0x0011 #define PIC32MX_TRACEERR_EP0SETUPSTALLED 0x0012 -#define PIC32MX_TRACEERR_EPBUFFER 0x0013 #define PIC32MX_TRACEERR_EPDISABLED 0x0014 #define PIC32MX_TRACEERR_EPOUTNULLPACKET 0x0015 #define PIC32MX_TRACEERR_EPRESERVE 0x0016 @@ -211,14 +342,14 @@ #define PIC32MX_TRACEINTID_EPOUTDONE 0x000c #define PIC32MX_TRACEINTID_EPOUTPENDING 0x000d #define PIC32MX_TRACEINTID_EPOUTQEMPTY 0x000e -#define PIC32MX_TRACEINTID_SOF 0x000f +#define PIC32MX_TRACEINTID_SOF 0x000f #define PIC32MX_TRACEINTID_GETCONFIG 0x0010 #define PIC32MX_TRACEINTID_GETSETDESC 0x0011 #define PIC32MX_TRACEINTID_GETSETIF 0x0012 #define PIC32MX_TRACEINTID_GETSTATUS 0x0013 #define PIC32MX_TRACEINTID_IFGETSTATUS 0x0015 -#define PIC32MX_TRACEINTID_TRNC 0x0016 -#define PIC32MX_TRACEINTID_INTERRUPT 0x0017 +#define PIC32MX_TRACEINTID_TRNC 0x0016 +#define PIC32MX_TRACEINTID_INTERRUPT 0x0017 #define PIC32MX_TRACEINTID_NOSTDREQ 0x0018 #define PIC32MX_TRACEINTID_RESET 0x0019 #define PIC32MX_TRACEINTID_SETCONFIG 0x001a @@ -233,7 +364,8 @@ /* Misc Helper Macros *******************************************************/ -#define PHYS_ADDR(a) ((uint32_t)(a) & 0x1fffffff) +#define PHYS_ADDR(va) ((uint32_t)(va) & 0x1fffffff) +#define VIRT_ADDR(pa) (KSEG1_BASE | (uint32_t)(pa)) /* Ever-present MIN and MAX macros */ @@ -270,7 +402,15 @@ enum pic32mx_devstate_e DEVSTATE_ADDRPENDING, /* Waiting for an address */ DEVSTATE_ADDRESS, /* Address received */ DEVSTATE_CONFIGURED, /* Configuration received */ +}; +/* Control Transfer States */ + +enum pic32mx_ctrlxfr_e +{ + CTRLXFR_WAIT_SETUP = 0, /* Waiting for a setup packet */ + CTRLXFR_IN, /* IN control transfer in progress */ + CTRLXFR_OUT /* OUT control transfer in progress */ }; /* The various states of the control pipe */ @@ -283,6 +423,15 @@ enum pic32mx_ctrlstate_e CTRLSTATE_STALLED /* We are stalled */ }; +/* Short Packet States - Used by Control Transfer Read */ + +enum pic32mx_shortkpt_e +{ + SHORTPKT_NONE = 0, + SHORTPKT_PENDING, + SHORTPKT_SENT +}; + union wb_u { uint16_t w; @@ -293,8 +442,8 @@ union wb_u struct pic32mx_req_s { - struct usbdev_req_s req; /* Standard USB request */ - struct pic32mx_req_s *flink; /* Supports a singly linked list */ + struct usbdev_req_s req; /* Standard USB request */ + struct pic32mx_req_s *flink; /* Supports a singly linked list */ }; /* This is the internal representation of an endpoint */ @@ -329,22 +478,19 @@ struct pic32mx_ep_s /* PIC32MX-specific fields */ - struct usb_ctrlreq_s ctrl; /* Last EP0 request */ - struct pic32mx_usbdev_s *dev; /* Reference to private driver data */ - struct pic32mx_req_s *head; /* Request list for this endpoint */ - struct pic32mx_req_s *tail; - uint8_t bufno; /* Allocated buffer number */ - uint8_t stalled:1; /* true: Endpoint is stalled */ - uint8_t halted:1; /* true: Endpoint feature halted */ - uint8_t txbusy:1; /* true: TX endpoint FIFO full */ - uint8_t txnullpkt:1; /* Null packet needed at end of transfer */ - - struct usbotg_bdtentry_s *bdt; /* BDT entry */ - union - { - struct usb_inpipe_s inpipe; /* State of the outgoing data transfer */ - struct usb_outpipe_s outpipe; /* State of the incoming data transfer */ - } u; + struct pic32mx_usbdev_s *dev; /* Reference to private driver data */ + struct pic32mx_req_s *head; /* Request list for this endpoint */ + struct pic32mx_req_s *tail; + uint8_t stalled:1; /* true: Endpoint is stalled */ + uint8_t halted:1; /* true: Endpoint feature halted */ + uint8_t txbusy:1; /* true: TX endpoint FIFO full */ + uint8_t txnullpkt:1; /* Null packet needed at end of transfer */ + + volatile struct usbotg_bdtentry_s *bdtin; /* BDT entry for the IN transaction*/ + volatile struct usbotg_bdtentry_s *bdtout; /* BDT entry for the OUT transaction */ + + struct usb_inpipe_s inpipe; /* State of the outgoing data transfer */ + struct usb_outpipe_s outpipe; /* State of the incoming data transfer */ }; struct pic32mx_usbdev_s @@ -365,16 +511,18 @@ struct pic32mx_usbdev_s struct usb_ctrlreq_s ctrl; /* Last EP0 request */ uint8_t devstate; /* Driver state (see enum pic32mx_devstate_e) */ uint8_t ctrlstate; /* Control EP state (see enum pic32mx_ctrlstate_e) */ + uint8_t ctrlxfr; /* Control transfer state (see enum pic32mx_ctrlxfr_e) */ + uint8_t shortpkt; /* Short packet stated (see enum pic32mx_shortkpt_e) */ uint8_t nesofs; /* ESOF counter (for resume support) */ - uint8_t config; /* Active configuration */ - uint8_t rxpending:1; /* 1: OUT data in PMA, but no read requests */ uint8_t selfpowered:1; /* 1: Device is self powered */ + uint8_t rwakeup:1; /* 1: Device supports remote wakeup */ uint8_t epavail; /* Bitset of available endpoints */ uint8_t bufavail; /* Bitset of available buffers */ - uint16_t rxstatus; /* Saved during interrupt processing */ - uint16_t txstatus; /* " " " " " " " " */ uint16_t imask; /* Current interrupt mask */ + volatile struct usbotg_bdtentry_s *ep0bdtout; /* BDT entry for the next EP0 OUT transaction*/ + volatile struct usbotg_bdtentry_s *ep0bdtin; /* BDT entry for the next EP0 IN transaction*/ + /* The endpoint list */ struct pic32mx_ep_s eplist[PIC32MX_NENDPOINTS]; @@ -396,44 +544,6 @@ static void pic32mx_dumpep(int epno); # define pic32mx_dumpep(epno) #endif -/* Low-Level Helpers ********************************************************/ - -static inline void - pic32mx_seteptxcount(uint8_t epno, uint16_t count); -static inline void - pic32mx_seteptxaddr(uint8_t epno, uint16_t addr); -static inline uint16_t - pic32mx_geteptxaddr(uint8_t epno); -static void pic32mx_seteprxcount(uint8_t epno, uint16_t count); -static inline uint16_t - pic32mx_geteprxcount(uint8_t epno); -static inline void - pic32mx_seteprxaddr(uint8_t epno, uint16_t addr); -static inline uint16_t - pic32mx_geteprxaddr(uint8_t epno); -static inline void - pic32mx_setepaddress(uint8_t epno, uint16_t addr); -static inline void - pic32mx_seteptype(uint8_t epno, uint16_t type); -static inline void - pic32mx_seteptxaddr(uint8_t epno, uint16_t addr); -static inline void - pic32mx_setstatusout(uint8_t epno); -static inline void - pic32mx_clrstatusout(uint8_t epno); -static void pic32mx_clrrxdtog(uint8_t epno); -static void pic32mx_clrtxdtog(uint8_t epno); -static void pic32mx_clrepctrrx(uint8_t epno); -static void pic32mx_clrepctrtx(uint8_t epno); -static void pic32mx_seteptxstatus(uint8_t epno, uint16_t state); -static void pic32mx_seteprxstatus(uint8_t epno, uint16_t state); -static inline uint16_t - pic32mx_geteptxstatus(uint8_t epno); -static inline uint16_t - pic32mx_geteprxstatus(uint8_t epno); -static uint16_t pic32mx_eptxstalled(uint8_t epno); -static uint16_t pic32mx_eprxstalled(uint8_t epno); - /* Suspend/Resume Helpers ***************************************************/ static void pic32mx_suspend(struct pic32mx_usbdev_s *priv); @@ -441,10 +551,6 @@ static void pic32mx_resume(struct pic32mx_usbdev_s *priv); /* Request Helpers **********************************************************/ -static void pic32mx_copytopma(const uint8_t *buffer, uint16_t pma, - uint16_t nbytes); -static inline void - pic32mx_copyfrompma(uint8_t *buffer, uint16_t pma, uint16_t nbytes); static struct pic32mx_req_s * pic32mx_rqdequeue(struct pic32mx_ep_s *privep); static void pic32mx_rqenqueue(struct pic32mx_ep_s *privep, @@ -464,12 +570,13 @@ static void pic32mx_cancelrequests(struct pic32mx_ep_s *privep); /* Interrupt level processing ***********************************************/ static void pic32mx_dispatchrequest(struct pic32mx_usbdev_s *priv); +static void pic32mx_ep0stall(struct pic32mx_usbdev_s *priv); static void pic32mx_eptransfer(struct pic32mx_usbdev_s *priv, uint8_t epno); static void pic32mx_setdevaddr(struct pic32mx_usbdev_s *priv, uint8_t value); static void pic32mx_ep0setup(struct pic32mx_usbdev_s *priv); static void pic32mx_ep0out(struct pic32mx_usbdev_s *priv); static void pic32mx_ep0in(struct pic32mx_usbdev_s *priv); -static void pic32mx_ep0transfer(struct pic32mx_usbdev_s *priv, uint16_t pending); +static void pic32mx_ep0transfer(struct pic32mx_usbdev_s *priv, uint16_t status); static int pic32mx_interrupt(int irq, void *context); /* Endpoint helpers *********************************************************/ @@ -481,10 +588,6 @@ static inline void struct pic32mx_ep_s *privep); static inline bool pic32mx_epreserved(struct pic32mx_usbdev_s *priv, int epno); -static int pic32mx_epallocpma(struct pic32mx_usbdev_s *priv); -static inline void - pic32mx_epfreepma(struct pic32mx_usbdev_s *priv, - struct pic32mx_ep_s *privep); /* Endpoint operations ******************************************************/ @@ -691,402 +794,9 @@ static void pic32mx_dumpep(int epno) #endif /**************************************************************************** - * Low-Level Helpers - ****************************************************************************/ -/**************************************************************************** - * Name: pic32mx_seteptxcount - ****************************************************************************/ - -static inline void pic32mx_seteptxcount(uint8_t epno, uint16_t count) -{ - volatile uint32_t *epaddr = (uint32_t*)PIC32MX_USB_COUNT_TX(epno); - *epaddr = count; -} - -/**************************************************************************** - * Name: pic32mx_seteptxaddr - ****************************************************************************/ - -static inline void pic32mx_seteptxaddr(uint8_t epno, uint16_t addr) -{ - volatile uint32_t *txaddr = (uint32_t*)PIC32MX_USB_ADDR_TX(epno); - *txaddr = addr; -} - -/**************************************************************************** - * Name: pic32mx_geteptxaddr - ****************************************************************************/ - -static inline uint16_t pic32mx_geteptxaddr(uint8_t epno) -{ - volatile uint32_t *txaddr = (uint32_t*)PIC32MX_USB_ADDR_TX(epno); - return (uint16_t)*txaddr; -} - -/**************************************************************************** - * Name: pic32mx_seteprxcount - ****************************************************************************/ - -static void pic32mx_seteprxcount(uint8_t epno, uint16_t count) -{ - volatile uint32_t *epaddr = (uint32_t*)PIC32MX_USB_COUNT_RX(epno); - uint32_t rxcount = 0; - uint16_t nblocks; - - /* The upper bits of the RX COUNT value contain the size of allocated - * RX buffer. This is based on a block size of 2 or 32: - * - * USB_COUNT_RX_BL_SIZE not set: - * nblocks is in units of 2 bytes. - * 00000 - not allowed - * 00001 - 2 bytes - * .... - * 11111 - 62 bytes - * - * USB_COUNT_RX_BL_SIZE set: - * 00000 - 32 bytes - * 00001 - 64 bytes - * ... - * 01111 - 512 bytes - * 1xxxx - Not allowed - */ - - if (count > 62) - { - /* Blocks of 32 (with 0 meaning one block of 32) */ - - nblocks = (count >> 5) - 1 ; - DEBUGASSERT(nblocks <= 0x0f); - rxcount = (uint32_t)((nblocks << USB_COUNT_RX_NUM_BLOCK_SHIFT) | USB_COUNT_RX_BL_SIZE); - } - else if (count > 0) - { - /* Blocks of 2 (with 1 meaning one block of 2) */ - - nblocks = (count + 1) >> 1; - DEBUGASSERT(nblocks > 0 && nblocks < 0x1f); - rxcount = (uint32_t)(nblocks << USB_COUNT_RX_NUM_BLOCK_SHIFT); - } - *epaddr = rxcount; -} - -/**************************************************************************** - * Name: pic32mx_geteprxcount - ****************************************************************************/ - -static inline uint16_t pic32mx_geteprxcount(uint8_t epno) -{ - volatile uint32_t *epaddr = (uint32_t*)PIC32MX_USB_COUNT_RX(epno); - return (*epaddr) & USB_COUNT_RX_MASK; -} - -/**************************************************************************** - * Name: pic32mx_seteprxaddr - ****************************************************************************/ - -static inline void pic32mx_seteprxaddr(uint8_t epno, uint16_t addr) -{ - volatile uint32_t *rxaddr = (uint32_t*)PIC32MX_USB_ADDR_RX(epno); - *rxaddr = addr; -} - -/**************************************************************************** - * Name: pic32mx_seteprxaddr - ****************************************************************************/ - -static inline uint16_t pic32mx_geteprxaddr(uint8_t epno) -{ - volatile uint32_t *rxaddr = (uint32_t*)PIC32MX_USB_ADDR_RX(epno); - return (uint16_t)*rxaddr; -} - -/**************************************************************************** - * Name: pic32mx_setepaddress - ****************************************************************************/ - -static inline void pic32mx_setepaddress(uint8_t epno, uint16_t addr) -{ - uint32_t epaddr = PIC32MX_USB_EPR(epno); - uint16_t regval; - - regval = pic32mx_getreg(epaddr); - regval &= EPR_NOTOG_MASK; - regval &= ~USB_EPR_EA_MASK; - regval |= (addr << USB_EPR_EA_SHIFT); - pic32mx_putreg(regval, epaddr); -} - -/**************************************************************************** - * Name: pic32mx_seteptype - ****************************************************************************/ - -static inline void pic32mx_seteptype(uint8_t epno, uint16_t type) -{ - uint32_t epaddr = PIC32MX_USB_EPR(epno); - uint16_t regval; - - regval = pic32mx_getreg(epaddr); - regval &= EPR_NOTOG_MASK; - regval &= ~USB_EPR_EPTYPE_MASK; - regval |= type; - pic32mx_putreg(regval, epaddr); -} - -/**************************************************************************** - * Name: pic32mx_setstatusout - ****************************************************************************/ - -static inline void pic32mx_setstatusout(uint8_t epno) -{ - uint32_t epaddr = PIC32MX_USB_EPR(epno); - uint16_t regval; - - /* For a BULK endpoint the EP_KIND bit is used to enabled double buffering; - * for a CONTROL endpoint, it is set to indicate that a status OUT - * transaction is expected. The bit is not used with out endpoint types. - */ - - regval = pic32mx_getreg(epaddr); - regval &= EPR_NOTOG_MASK; - regval |= USB_EPR_EP_KIND; - pic32mx_putreg(regval, epaddr); -} - -/**************************************************************************** - * Name: pic32mx_clrstatusout - ****************************************************************************/ - -static inline void pic32mx_clrstatusout(uint8_t epno) -{ - uint32_t epaddr = PIC32MX_USB_EPR(epno); - uint16_t regval; - - /* For a BULK endpoint the EP_KIND bit is used to enabled double buffering; - * for a CONTROL endpoint, it is set to indicate that a status OUT - * transaction is expected. The bit is not used with out endpoint types. - */ - - regval = pic32mx_getreg(epaddr); - regval &= EPR_NOTOG_MASK; - regval &= ~USB_EPR_EP_KIND; - pic32mx_putreg(regval, epaddr); -} - -/**************************************************************************** - * Name: pic32mx_clrrxdtog - ****************************************************************************/ - -static void pic32mx_clrrxdtog(uint8_t epno) -{ - uint32_t epaddr = PIC32MX_USB_EPR(epno); - uint16_t regval; - - regval = pic32mx_getreg(epaddr); - if ((regval & USB_EPR_DTOG_RX) != 0) - { - regval &= EPR_NOTOG_MASK; - regval |= USB_EPR_DTOG_RX; - pic32mx_putreg(regval, epaddr); - } -} - -/**************************************************************************** - * Name: pic32mx_clrtxdtog - ****************************************************************************/ - -static void pic32mx_clrtxdtog(uint8_t epno) -{ - uint32_t epaddr = PIC32MX_USB_EPR(epno); - uint16_t regval; - - regval = pic32mx_getreg(epaddr); - if ((regval & USB_EPR_DTOG_TX) != 0) - { - regval &= EPR_NOTOG_MASK; - regval |= USB_EPR_DTOG_TX; - pic32mx_putreg(regval, epaddr); - } -} - -/**************************************************************************** - * Name: pic32mx_clrepctrrx - ****************************************************************************/ - -static void pic32mx_clrepctrrx(uint8_t epno) -{ - uint32_t epaddr = PIC32MX_USB_EPR(epno); - uint16_t regval; - - regval = pic32mx_getreg(epaddr); - regval &= EPR_NOTOG_MASK; - regval &= ~USB_EPR_CTR_RX; - pic32mx_putreg(regval, epaddr); -} - -/**************************************************************************** - * Name: pic32mx_clrepctrtx - ****************************************************************************/ - -static void pic32mx_clrepctrtx(uint8_t epno) -{ - uint32_t epaddr = PIC32MX_USB_EPR(epno); - uint16_t regval; - - regval = pic32mx_getreg(epaddr); - regval &= EPR_NOTOG_MASK; - regval &= ~USB_EPR_CTR_TX; - pic32mx_putreg(regval, epaddr); -} - -/**************************************************************************** - * Name: pic32mx_geteptxstatus - ****************************************************************************/ - -static inline uint16_t pic32mx_geteptxstatus(uint8_t epno) -{ - return (uint16_t)(pic32mx_getreg(PIC32MX_USB_EPR(epno)) & USB_EPR_STATTX_MASK); -} - -/**************************************************************************** - * Name: pic32mx_geteprxstatus - ****************************************************************************/ - -static inline uint16_t pic32mx_geteprxstatus(uint8_t epno) -{ - return (pic32mx_getreg(PIC32MX_USB_EPR(epno)) & USB_EPR_STATRX_MASK); -} - -/**************************************************************************** - * Name: pic32mx_seteptxstatus - ****************************************************************************/ - -static void pic32mx_seteptxstatus(uint8_t epno, uint16_t state) -{ - uint32_t epaddr = PIC32MX_USB_EPR(epno); - uint16_t regval; - - /* The bits in the STAT_TX field can be toggled by software to set their - * value. When set to 0, the value remains unchanged; when set to one, - * value toggles. - */ - - regval = pic32mx_getreg(epaddr); - - /* The exclusive OR will set STAT_TX bits to 1 if there value is different - * from the bits requested in 'state' - */ - - regval ^= state; - regval &= EPR_TXDTOG_MASK; - pic32mx_putreg(regval, epaddr); -} - -/**************************************************************************** - * Name: pic32mx_seteprxstatus - ****************************************************************************/ - -static void pic32mx_seteprxstatus(uint8_t epno, uint16_t state) -{ - uint32_t epaddr = PIC32MX_USB_EPR(epno); - uint16_t regval; - - /* The bits in the STAT_RX field can be toggled by software to set their - * value. When set to 0, the value remains unchanged; when set to one, - * value toggles. - */ - - regval = pic32mx_getreg(epaddr); - - /* The exclusive OR will set STAT_RX bits to 1 if there value is different - * from the bits requested in 'state' - */ - - regval ^= state; - regval &= EPR_RXDTOG_MASK; - pic32mx_putreg(regval, epaddr); -} - -/**************************************************************************** - * Name: pic32mx_eptxstalled - ****************************************************************************/ - -static inline uint16_t pic32mx_eptxstalled(uint8_t epno) -{ - return (pic32mx_geteptxstatus(epno) == USB_EPR_STATTX_STALL); -} - -/**************************************************************************** - * Name: pic32mx_eprxstalled - ****************************************************************************/ - -static inline uint16_t pic32mx_eprxstalled(uint8_t epno) -{ - return (pic32mx_geteprxstatus(epno) == USB_EPR_STATRX_STALL); -} - -/**************************************************************************** * Request Helpers ****************************************************************************/ /**************************************************************************** - * Name: pic32mx_copytopma - ****************************************************************************/ - -static void pic32mx_copytopma(const uint8_t *buffer, uint16_t pma, uint16_t nbytes) -{ - uint16_t *dest; - uint16_t ms; - uint16_t ls; - int nwords = (nbytes + 1) >> 1; - int i; - - /* Copy loop. Source=user buffer, Dest=packet memory */ - - dest = (uint16_t*)(PIC32MX_USBCANRAM_BASE + ((uint32_t)pma << 1)); - for (i = nwords; i != 0; i--) - { - /* Read two bytes and pack into on 16-bit word */ - - ls = (uint16_t)(*buffer++); - ms = (uint16_t)(*buffer++); - *dest = ms << 8 | ls; - - /* Source address increments by 2*sizeof(uint8_t) = 2; Dest address - * increments by 2*sizeof(uint16_t) = 4. - */ - - dest += 2; - } -} - -/**************************************************************************** - * Name: pic32mx_copyfrompma - ****************************************************************************/ - -static inline void -pic32mx_copyfrompma(uint8_t *buffer, uint16_t pma, uint16_t nbytes) -{ - uint32_t *src; - int nwords = (nbytes + 1) >> 1; - int i; - - /* Copy loop. Source=packet memory, Dest=user buffer */ - - src = (uint32_t*)(PIC32MX_USBCANRAM_BASE + ((uint32_t)pma << 1)); - for (i = nwords; i != 0; i--) - { - /* Copy 16-bits from packet memory to user buffer. */ - - *(uint16_t*)buffer = *src++; - - /* Source address increments by 1*sizeof(uint32_t) = 4; Dest address - * increments by 2*sizeof(uint8_t) = 2. - */ - - buffer += 2; - } -} - -/**************************************************************************** * Name: pic32mx_rqdequeue ****************************************************************************/ @@ -1205,15 +915,9 @@ static void pic32mx_epwrite(struct pic32mx_usbdev_s *priv, /* Copy the data from the user buffer into packet memory for this * endpoint */ - - pic32mx_copytopma(buf, pic32mx_geteptxaddr(epno), nbytes); +#warning "Missing logic" } - /* Send the packet (might be a null packet nbytes == 0) */ - - pic32mx_seteptxcount(epno, nbytes); - priv->txstatus = USB_EPR_STATTX_VALID; - /* Indicate that there is data in the TX packet memory. This will be cleared * when the next data out interrupt is received. */ @@ -1262,8 +966,6 @@ static int pic32mx_wrrequest(struct pic32mx_usbdev_s *priv, struct pic32mx_ep_s bytesleft = privreq->req.len - privreq->req.xfrd; nbytes = bytesleft; -#warning "REVISIT: If the EP supports double buffering, then we can do better" - /* Send the next packet */ if (nbytes > 0) @@ -1326,7 +1028,7 @@ static int pic32mx_rdrequest(struct pic32mx_usbdev_s *priv, struct pic32mx_ep_s uint32_t src; uint8_t *dest; uint8_t epno; - int pmalen; + int pktlen; int readlen; /* Check the request from the head of the endpoint request queue */ @@ -1360,16 +1062,14 @@ static int pic32mx_rdrequest(struct pic32mx_usbdev_s *priv, struct pic32mx_ep_s /* Get the source and destination transfer addresses */ dest = privreq->req.buf + privreq->req.xfrd; - src = pic32mx_geteprxaddr(epno); +#warning "Missing logic" /* Get the number of bytes to read from packet memory */ - - pmalen = pic32mx_geteprxcount(epno); - readlen = MIN(privreq->req.len, pmalen); +#warning "Missing logic" /* Receive the next packet */ - pic32mx_copyfrompma(dest, src, readlen); +#warning "Missing logic" priv->ctrlstate = CTRLSTATE_RDREQUEST; /* If the receive buffer is full or this is a partial packet, @@ -1377,7 +1077,7 @@ static int pic32mx_rdrequest(struct pic32mx_usbdev_s *priv, struct pic32mx_ep_s */ privreq->req.xfrd += readlen; - if (pmalen < privep->ep.maxpacket || privreq->req.xfrd >= privreq->req.len) + if (pktlen < privep->ep.maxpacket || privreq->req.xfrd >= privreq->req.len) { /* Complete the transfer and mark the state IDLE. The endpoint * RX will be marked valid when the data phase completes. @@ -1433,25 +1133,55 @@ static void pic32mx_dispatchrequest(struct pic32mx_usbdev_s *priv) } /**************************************************************************** + * Name: pic32mx_ep0stall + ****************************************************************************/ + +static void pic32mx_ep0stall(struct pic32mx_usbdev_s *priv) +{ + uint16_t regval; + + /* Check if EP0 is stalled */ + + regval = pic32mx_getreg(PIC32MX_USB_EP0); + if ((regval & USB_EP_EPSTALL) != 0) + { + /* Check if we own the BDTs. All BDs of endpoint zero should be owned by + * the USB. Check anyway. + */ + + voltaile struct usbotg_bdtentry_s *bdt = priv->ep0bdtout; + struct pic32mx_ep_s *privep = &priv->eplist[EP0]; + + if ((bdt->status & USB_BDT_UOWN) != 0 && + (privep->bdtin->status & (USB_BDT_UOWN | USB_BDT_BSTALL)) == (USB_BDT_UOWN | USB_BDT_BSTALL)) + { + /* Set ep0 BDT status to stall also */ + + bdt->status = (USB_BDT_UOWN | USB_BDT_DATA0 | USB_BDT_DTS | USB_BDT_BSTALL); + } + + /* Then clear the EP0 stall status */ + + regval &= ~USB_EP_EPSTALL; + pic32mx_putreg(regval, PIC32MX_USB_EP0); + } +} + +/**************************************************************************** * Name: pic32mx_eptransfer ****************************************************************************/ static void pic32mx_eptransfer(struct pic32mx_usbdev_s *priv, uint8_t epno) { struct pic32mx_ep_s *privep; - uint16_t epr; /* Decode and service non control endpoints interrupt */ - epr = pic32mx_getreg(PIC32MX_USB_EPR(epno)); privep = &priv->eplist[epno]; - /* OUT: host-to-device - * CTR_RX is set by the hardware when an OUT/SETUP transaction - * successfully completed on this endpoint. - */ + /* OUT: host-to-device */ +#warning "Missing logic" - if ((epr & USB_EPR_CTR_RX) != 0) { usbtrace(TRACE_INTDECODE(PIC32MX_TRACEINTID_EPOUTDONE), epr); @@ -1464,13 +1194,6 @@ static void pic32mx_eptransfer(struct pic32mx_usbdev_s *priv, uint8_t epno) /* Read host data into the current read request */ pic32mx_rdrequest(priv, privep); - - /* "After the received data is processed, the application software - * should set the STAT_RX bits to '11' (Valid) in the USB_EPnR, - * enabling further transactions. " - */ - - priv->rxstatus = USB_EPR_STATRX_VALID; } /* NAK further OUT packets if there there no more read requests */ @@ -1478,44 +1201,22 @@ static void pic32mx_eptransfer(struct pic32mx_usbdev_s *priv, uint8_t epno) if (pic32mx_rqempty(privep)) { usbtrace(TRACE_INTDECODE(PIC32MX_TRACEINTID_EPOUTPENDING), (uint16_t)epno); - - /* Mark the RX processing as pending and NAK any OUT actions - * on this endpoint. "While the STAT_RX bits are equal to '10' - * (NAK), any OUT request addressed to that endpoint is NAKed, - * indicating a flow control condition: the USB host will retry - * the transaction until it succeeds." - */ - - priv->rxstatus = USB_EPR_STATRX_NAK; - priv->rxpending = true; +#warning "Missing logic" } - - /* Clear the interrupt status and set the new RX status */ - - pic32mx_clrepctrrx(epno); - pic32mx_seteprxstatus(epno, priv->rxstatus); } - /* IN: device-to-host - * CTR_TX is set when an IN transaction successfully completes on - * an endpoint - */ + /* IN: device-to-host */ +#warning "Missing logic" - else if ((epr & USB_EPR_CTR_TX) != 0) { /* Clear interrupt status */ +#warning "Missing logic" - pic32mx_clrepctrtx(epno); usbtrace(TRACE_INTDECODE(PIC32MX_TRACEINTID_EPINDONE), epr); /* Handle write requests */ - priv->txstatus = USB_EPR_STATTX_NAK; pic32mx_wrrequest(priv, privep); - - /* Set the new TX status */ - - pic32mx_seteptxstatus(epno, priv->txstatus); } } @@ -1525,21 +1226,7 @@ static void pic32mx_eptransfer(struct pic32mx_usbdev_s *priv, uint8_t epno) static void pic32mx_setdevaddr(struct pic32mx_usbdev_s *priv, uint8_t value) { - int epno; - - /* Set address in every allocated endpoint */ - - for (epno = 0; epno < PIC32MX_NENDPOINTS; epno++) - { - if (pic32mx_epreserved(priv, epno)) - { - pic32mx_setepaddress((uint8_t)epno, (uint8_t)epno); - } - } - - /* Set the device address and enable function */ - - pic32mx_putreg(value|USB_DADDR_EF, PIC32MX_USB_DADDR); +#warning "Missing logic" } /**************************************************************************** @@ -1548,17 +1235,18 @@ static void pic32mx_setdevaddr(struct pic32mx_usbdev_s *priv, uint8_t value) static void pic32mx_ep0setup(struct pic32mx_usbdev_s *priv) { - struct pic32mx_ep_s *ep0 = &priv->eplist[EP0]; - struct pic32mx_req_s *privreq = pic32mx_rqpeek(ep0); - struct pic32mx_ep_s *privep; - union wb_u value; - union wb_u index; - union wb_u len; - union wb_u response; - bool handled = false; - uint8_t epno; - int nbytes = 0; /* Assume zero-length packet */ - int ret; + volatile struct usbotg_bdtentry_s *bdt; + struct pic32mx_ep_s *ep0 = &priv->eplist[EP0]; + struct pic32mx_req_s *privreq = pic32mx_rqpeek(ep0); + struct pic32mx_ep_s *privep; + union wb_u value; + union wb_u index; + union wb_u len; + union wb_u response; + bool handled = false; + uint8_t epno; + int nbytes = 0; /* Assume zero-length packet */ + int ret; /* Terminate any pending requests (doesn't work if the pending request * was a zero-length transfer!) @@ -1576,14 +1264,31 @@ static void pic32mx_ep0setup(struct pic32mx_usbdev_s *priv) pic32mx_reqcomplete(ep0, result); } + /* Check if the USB currently owns the buffer */ + + if ((ep0->bdtin->status & USB_BDT_UOWN) != 0) + { + /* Yes.. give control back to the CPU. This handles for the + * ownership after a stall. + */ + + ep0->bdtin-=>status = USB_BDT_COWN; + } + /* Assume NOT stalled; no TX in progress */ ep0->stalled = 0; ep0->txbusy = 0; - /* Get a 32-bit PMA address and use that to get the 8-byte setup request */ + /* Keep track of if a short packet has been sent yet or not */ - pic32mx_copyfrompma((uint8_t*)&priv->ctrl, pic32mx_geteprxaddr(EP0), USB_SIZEOF_CTRLREQ); + priv->shortpkt = SHORTPKT_NONE; + + /* Initialize for the SETUP */ + + priv->ctrlxfr = CTRLXFR_WAIT_SETUP; + ep0->inpipe.wcount = 0; + ep0->inpipe.inuse = 0; /* And extract the little-endian 16-bit values to host order */ @@ -1644,31 +1349,29 @@ static void pic32mx_ep0setup(struct pic32mx_usbdev_s *priv) } else { - privep = &priv->eplist[epno]; - response.w = 0; /* Not stalled */ - nbytes = 2; /* Response size: 2 bytes */ + ep0->inpipe.inuse = 1; + privep = &priv->eplist[epno]; + response.w = 0; /* Not stalled */ + nbytes = 2; /* Response size: 2 bytes */ if (USB_ISEPIN(index.b[LSB])) { /* IN endpoint */ - if (pic32mx_eptxstalled(epno)) - { - /* IN Endpoint stalled */ - - response.b[LSB] = 1; /* Stalled */ - } - } + bdt = privep->bdtin; + } else { /* OUT endpoint */ - if (pic32mx_eprxstalled(epno)) - { - /* OUT Endpoint stalled */ + bdt = privep->bdtout; + } + + /* BSTALL set if stalled */ - response.b[LSB] = 1; /* Stalled */ - } + if (bdt->status & USB_BDT_BSTALL) + { + response.b[LSB] = 1; /* Stalled, set bit 0 */ } } } @@ -1684,8 +1387,10 @@ static void pic32mx_ep0setup(struct pic32mx_usbdev_s *priv) response.w = 0; response.b[LSB] = (priv->selfpowered << USB_FEATURE_SELFPOWERED) | - (1 << USB_FEATURE_REMOTEWAKEUP); + (priv->rwakeup << USB_FEATURE_REMOTEWAKEUP); nbytes = 2; /* Response size: 2 bytes */ + + ep0->inpipe.inuse = 1; } else { @@ -1698,8 +1403,9 @@ static void pic32mx_ep0setup(struct pic32mx_usbdev_s *priv) case USB_REQ_RECIPIENT_INTERFACE: { usbtrace(TRACE_INTDECODE(PIC32MX_TRACEINTID_IFGETSTATUS), 0); - response.w = 0; - nbytes = 2; /* Response size: 2 bytes */ + response.w = 0; + nbytes = 2; /* Response size: 2 bytes */ + ep0->inpipe.inuse = 1; } break; @@ -1710,6 +1416,16 @@ static void pic32mx_ep0setup(struct pic32mx_usbdev_s *priv) } break; } + + /* Are we sending anthing? */ + + if (ep0->inpipe.inuse == 1) + { + /* Set source, memory type, and data count */ + + ep0->inpipe.src = (uint8_t *)&response; + ep0->inpipe.wcount = 2; + } } } break; @@ -1723,26 +1439,65 @@ static void pic32mx_ep0setup(struct pic32mx_usbdev_s *priv) */ usbtrace(TRACE_INTDECODE(PIC32MX_TRACEINTID_CLEARFEATURE), priv->ctrl.type); - if ((priv->ctrl.type & USB_REQ_RECIPIENT_MASK) != USB_REQ_RECIPIENT_ENDPOINT) + if ((priv->ctrl.type & USB_REQ_RECIPIENT_MASK) != USB_REQ_RECIPIENT_DEVICE) { - /* Let the class implementation handle all recipients (except for the - * endpoint recipient) - */ + /* Disable B device from performing HNP */ - pic32mx_dispatchrequest(priv); - handled = true; +#ifdef CONFIG_USBOTG + if (value.w == USBOTG_FEATURE_B_HNP_ENABLE) + { + ep0->inpipe.inuse = 1; + + /* Disable HNP */ +#warning Missing Logic + } + + /* Disable A device HNP support */ + + else if (value.w == USBOTG_FEATURE_A_HNP_SUPPORT) + { + ep0->inpipe.inuse = 1; + + /* Disable HNP support*/ +#warning Missing Logic + } + + /* Disable alternate HNP support */ + + else if (value.w == USBOTG_FEATURE_A_ALT_HNP_SUPPORT) + { + ep0->inpipe.inuse = 1; + + /* Disable alternate HNP */ +#warning Missing Logic + } + else +#endif + /* Disable remote wakeup */ + + if (value.w == USB_FEATURE_REMOTEWAKEUP) + { + ep0->inpipe.inuse = 1; + priv->rwakeup = 0; + } + else + { + /* Let the class implementation handle all other device features */ + + pic32mx_dispatchrequest(priv); + handled = true; + } } - else + else if ((priv->ctrl.type & USB_REQ_RECIPIENT_MASK) == USB_REQ_RECIPIENT_ENDPOINT) { - /* Endpoint recipient */ - epno = USB_EPNO(index.b[LSB]); - if (epno < PIC32MX_NENDPOINTS && index.b[MSB] == 0 && + if (epno > 0 && epno < PIC32MX_NENDPOINTS && index.b[MSB] == 0 && value.w == USB_FEATURE_ENDPOINTHALT && len.w == 0) { - privep = &priv->eplist[epno]; - privep->halted = 0; - ret = pic32mx_epstall(&privep->ep, true); + privep = &priv->eplist[epno]; + privep->halted = 0; + ep0->inpipe.inuse = 1; + ret = pic32mx_epstall(&privep->ep, true); } else { @@ -1750,6 +1505,15 @@ static void pic32mx_ep0setup(struct pic32mx_usbdev_s *priv) priv->ctrlstate = CTRLSTATE_STALLED; } } + else + { + /* Let the class implementation handle all other recipients (except for the + * endpoint recipient) + */ + + pic32mx_dispatchrequest(priv); + handled = true; + } } break; @@ -1762,21 +1526,62 @@ static void pic32mx_ep0setup(struct pic32mx_usbdev_s *priv) */ usbtrace(TRACE_INTDECODE(PIC32MX_TRACEINTID_SETFEATURE), priv->ctrl.type); - if (((priv->ctrl.type & USB_REQ_RECIPIENT_MASK) == USB_REQ_RECIPIENT_DEVICE) && - value.w == USB_FEATURE_TESTMODE) - { - /* Special case recipient=device test mode */ - ullvdbg("test mode: %d\n", index.w); - } - else if ((priv->ctrl.type & USB_REQ_RECIPIENT_MASK) != USB_REQ_RECIPIENT_ENDPOINT) + if ((priv->ctrl.type & USB_REQ_RECIPIENT_MASK) == USB_REQ_RECIPIENT_DEVICE) { - /* The class driver handles all recipients except recipient=endpoint */ + /* Enable B device to perform HNP */ - pic32mx_dispatchrequest(priv); - handled = true; +#ifdef CONFIG_USBOTG + if (value.w == USBOTG_FEATURE_B_HNP_ENABLE) + { + ep0->inpipe.inuse = 1; + + /* Enable HNP */ +#warning "Missing logic" + } + + /* Enable A device HNP supports */ + + else if (value.w == USBOTG_FEATURE_A_HNP_SUPPORT) + { + ep0->inpipe.inuse = 1; + + /* Enable HNP support */ +#warning "Missing logic" + } + + /* Another port on the A device supports HNP */ + + else if (value.w == USBOTG_FEATURE_A_ALT_HNP_SUPPORT) + { + ep0->inpipe.inuse = 1; + + /* Enable alternate HNP */ +#warning "Missing logic" + } + else +#endif + + if (value.w == USB_FEATURE_REMOTEWAKEUP) + { + ep0->inpipe.inuse = 1; + priv->rwakeup = 0; + } + else if (value.w == USB_FEATURE_TESTMODE) + { + /* Special case recipient=device test mode */ + + ullvdbg("test mode: %d\n", index.w); + } + else + { + /* Let the class implementation handle all other device features */ + + pic32mx_dispatchrequest(priv); + handled = true; + } } - else + else if ((priv->ctrl.type & USB_REQ_RECIPIENT_MASK) == USB_REQ_RECIPIENT_ENDPOINT) { /* Handler recipient=endpoint */ @@ -1784,9 +1589,10 @@ static void pic32mx_ep0setup(struct pic32mx_usbdev_s *priv) if (epno < PIC32MX_NENDPOINTS && index.b[MSB] == 0 && value.w == USB_FEATURE_ENDPOINTHALT && len.w == 0) { - privep = &priv->eplist[epno]; - privep->halted = 1; - ret = pic32mx_epstall(&privep->ep, false); + privep = &priv->eplist[epno]; + privep->halted = 1; + ep0->inpipe.inuse = 1; + ret = pic32mx_epstall(&privep->ep, false); } else { @@ -1794,6 +1600,13 @@ static void pic32mx_ep0setup(struct pic32mx_usbdev_s *priv) priv->ctrlstate = CTRLSTATE_STALLED; } } + else + { + /* The class driver handles all recipients except recipient=endpoint */ + + pic32mx_dispatchrequest(priv); + handled = true; + } } break; @@ -1812,11 +1625,16 @@ static void pic32mx_ep0setup(struct pic32mx_usbdev_s *priv) usbtrace(TRACE_DEVERROR(PIC32MX_TRACEERR_BADSETADDRESS), 0); priv->ctrlstate = CTRLSTATE_STALLED; } + else + { + /* Note that setting of the device address will be deferred. A zero-length + * packet will be sent and the device address will be set when the zero- + * length packet transfer completes. + */ - /* Note that setting of the device address will be deferred. A zero-length - * packet will be sent and the device address will be set when the zero- - * length packet transfer completes. - */ + ep0->inpipe.inuse = 1; + priv->devstate = DEVSTATE_ADDRPENDING; + } } break; @@ -1972,7 +1790,7 @@ static void pic32mx_ep0setup(struct pic32mx_usbdev_s *priv) /* Send the response (might be a zero-length packet) */ - pic32mx_epwrite(priv, ep0, response.b, nbytes); + pic32mx_ep0done(); priv->ctrlstate = CTRLSTATE_IDLE; } } @@ -2046,123 +1864,78 @@ static void pic32mx_ep0out(struct pic32mx_usbdev_s *priv) * Name: pic32mx_ep0transfer ****************************************************************************/ -static void pic32mx_ep0transfer(struct pic32mx_usbdev_s *priv, uint16_t pending) +static void pic32mx_ep0transfer(struct pic32mx_usbdev_s *priv, uint16_t status) { - uint16_t epr; + int epno = (status & USB_STAT_ENDPT_MASK) >> USB_STAT_ENDPT_SHIFT; - /* Initialize RX and TX status. We shouldn't have to actually look at the - * status because the hardware is supposed to set the both RX and TX status - * to NAK when an EP0 SETUP occurs (of course, this might not be a setup) - */ + /* Check if the last transaction was an EP0 OUT transaction */ - priv->rxstatus = USB_EPR_STATRX_NAK; - priv->txstatus = USB_EPR_STATTX_NAK; + if ((status & USB_STAT_DIR) == USB_STAT_DIR_OUT) + { + /* It was an EP0 OUT transaction. Point to the EP0 OUT buffer of + * that just arrived + */ - /* Set both RX and TX status to NAK */ + volatile struct usbotg_bdtentry_s *bdt = &g_bdt[epno]; + priv->eplist[0].bdtout = bdt; + + /* Set the next out to the current out packet */ - pic32mx_seteprxstatus(EP0, USB_EPR_STATRX_NAK); - pic32mx_seteptxstatus(EP0, USB_EPR_STATTX_NAK); - - /* Check the direction bit to determine if this the completion of an EP0 - * packet sent to or received from the host PC. - */ + priv->ep0bdtout = bdt; + + /* Toggle it to the next ping pong buffer (if applicable) */ - if ((pending & USB_ISTR_DIR) == 0) - { - /* EP0 IN: device-to-host (DIR=0) */ + bdt->status ^= USB_NEXT_PINGPONG; - usbtrace(TRACE_INTDECODE(PIC32MX_TRACEINTID_EP0IN), pending); - pic32mx_clrepctrtx(EP0); - pic32mx_ep0in(priv); - } - else - { - /* EP0 OUT: host-to-device (DIR=1) */ + /* Check the current EP0 OUT buffer contains a SETUP packet */ - epr = pic32mx_getreg(PIC32MX_USB_EPR(EP0)); + if (((bdt->status & USB_BDT_PID_MASK) >> USB_BDT_PID_SHIFT) == USB_SETUP_TOKEN) + { + /* Check if the SETUP transaction data went into the priv->ctrl + * buffer. If not, then we will need to copy it. + */ - /* CTR_TX is set when an IN transaction successfully - * completes on an endpoint - */ + if (bdt->addr != (uint8_t *)PHYS_ADDR(&priv->ctrl)) + { + void *src = (void *)VIRT_ADDR(bdt->addr); + void *dest = &priv->ctrl; - if ((epr & USB_EPR_CTR_TX) != 0) - { - usbtrace(TRACE_INTDECODE(PIC32MX_TRACEINTID_EP0INDONE), epr); - pic32mx_clrepctrtx(EP0); - pic32mx_ep0in(priv); - } + memcpy(dest, src, USB_SIZEOF_CTRLREQ); + bdt->addr = (uint8_t *)PHYS_ADDR(&priv->ctrl); + } + + /* Handle the control OUT transfer */ - /* SETUP is set by the hardware when the last completed - * transaction was a control endpoint SETUP - */ - - else if ((epr & USB_EPR_SETUP) != 0) - { usbtrace(TRACE_INTDECODE(PIC32MX_TRACEINTID_EP0SETUPDONE), epr); - pic32mx_clrepctrrx(EP0); pic32mx_ep0setup(priv); } - - /* Set by the hardware when an OUT/SETUP transaction successfully - * completed on this endpoint. - */ - - else if ((epr & USB_EPR_CTR_RX) != 0) + else { + /* Handle the data OUT transfer */ + usbtrace(TRACE_INTDECODE(PIC32MX_TRACEINTID_EP0OUTDONE), epr); - pic32mx_clrepctrrx(EP0); pic32mx_ep0out(priv); } - - /* None of the above */ - - else - { - usbtrace(TRACE_DEVERROR(PIC32MX_TRACEERR_EP0BADCTR), epr); - return; /* Does this ever happen? */ - } } - /* Make sure that the EP0 packet size is still OK (superstitious?) */ + /* No.. it was an EP0 in transfer */ - pic32mx_seteprxcount(EP0, PIC32MX_EP0MAXPACKET); + else /* if ((status & USB_STAT_DIR) == USB_STAT_DIR_IN) */ + { + usbtrace(TRACE_INTDECODE(PIC32MX_TRACEINTID_EP0INDONE), epr); - /* Now figure out the new RX/TX status. Here are all possible - * consequences of the above EP0 operations: - * - * rxstatus txstatus ctrlstate MEANING - * -------- -------- --------- --------------------------------- - * NAK NAK IDLE Nothing happened - * NAK VALID IDLE EP0 response sent from USBDEV driver - * NAK VALID WRREQUEST EP0 response sent from class driver - * NAK --- STALL Some protocol error occurred - * - * First handle the STALL condition: - */ + /* Handle the IN transfer */ - if (priv->ctrlstate == CTRLSTATE_STALLED) - { - usbtrace(TRACE_DEVERROR(PIC32MX_TRACEERR_EP0SETUPSTALLED), priv->ctrlstate); - priv->rxstatus = USB_EPR_STATRX_STALL; - priv->txstatus = USB_EPR_STATTX_STALL; + pic32mx_ep0in(priv); } - /* Was a transmission started? If so, txstatus will be VALID. The - * only special case to handle is when both are set to NAK. In that - * case, we need to set RX status to VALID in order to accept the next - * SETUP request. - */ + /* Check for a stall */ - else if (priv->rxstatus == USB_EPR_STATRX_NAK && - priv->txstatus == USB_EPR_STATTX_NAK) + if (priv->ctrlstate == CTRLSTATE_STALLED) { - priv->rxstatus = USB_EPR_STATRX_VALID; + usbtrace(TRACE_DEVERROR(PIC32MX_TRACEERR_EP0SETUPSTALLED), priv->ctrlstate); +#warning "Missing logic" } - - /* Now set the new TX and RX status */ - - pic32mx_seteprxstatus(EP0, priv->rxstatus); - pic32mx_seteptxstatus(EP0, priv->txstatus); } /**************************************************************************** @@ -2179,6 +1952,7 @@ static int pic32mx_interrupt(int irq, void *context) struct pic32mx_usbdev_s *priv = &g_usbdev; uint16_t pending; uint16_t regval; + int i; /* Get the set of pending USB interrupts */ @@ -2290,7 +2064,7 @@ static int pic32mx_interrupt(int irq, void *context) g_bdt[EP0_OUT_EVEN].addr = (uint8_t *)PHYS_ADDR(&priv->ctrl); g_bdt[EP0_OUT_EVEN].status &= ~USB_BDT_BYTECOUNT_MASK; - g_bdt[EP0_OUT_EVEN].status |= (USB_EP0_BUFF_SIZE << USB_BDT_BYTECOUNT_SHIFT); + g_bdt[EP0_OUT_EVEN].status |= (USB_SIZEOF_CTRLREQ << USB_BDT_BYTECOUNT_SHIFT); g_bdt[EP0_OUT_EVEN].status &= ~USB_BDT_STATUS_MASK; g_bdt[EP0_OUT_EVEN].status |= USB_BDT_UOWN | USB_BDT_DATA0 | USB_BDT_DTS | USB_BDT_BSTALL; @@ -2337,7 +2111,11 @@ static int pic32mx_interrupt(int irq, void *context) { usbtrace(TRACE_INTDECODE(PIC32MX_TRACEINTID_STALL), pending); - pic32mx_stall(priv); + pic32mx_ep0stall(priv); + + /* Clear the pending STALL interrupt */ + + pic32mx_putreg(USB_INT_STALL, PIC32MX_USB_IR); } /* Service error interrupts */ @@ -2352,8 +2130,8 @@ static int pic32mx_interrupt(int irq, void *context) pic32mx_putreg(USB_EINT_ALL, PIC32MX_USB_EIR); } - /* It is pointless to continue servicing if the host has not sent a bus - * reset. Once bus reset is received, the device transitions into the DEFAULT + /* There is no point in continuing if the host has not sent a bus reset. + * Once bus reset is received, the device transitions into the DEFAULT * state and is ready for communication. */ @@ -2434,18 +2212,13 @@ static void pic32mx_suspend(struct pic32mx_usbdev_s *priv) * then it can never get out of the suspend mode. */ - regval = pic32mx_getreg(PIC32MX_USBOTG_IE); + regval = pic32mx_getreg(PIC32MX_USBOTG_IE); regval |= USBOTG_INT_ACTV; pic32mx_putreg(regval, PIC32MX_USBOTG_IE); - pic32mx_putreg(USB_INT_IDLE, PIC32MX_USB_IR); - - /* At this point it would be appropriate to invoke a callback to enter - * into sleep or idle modes or switch to a slower clock, etc. - * - * Let the board-specific logic know that we have entered the suspend - * state - */ + /* Invoke a callback into board-specific logic. The board-specific logic + * may enter into sleep or idle modes or switch to a slower clock, etc. + */ pic32mx_usbsuspend((struct usbdev_s *)priv, false); } @@ -2468,7 +2241,7 @@ static void pic32mx_resume(struct pic32mx_usbdev_s *priv) up_mdelay(10); - regval &~= USB_CON_RESUME; + regval &= ~USB_CON_RESUME; pic32mx_putreg(regval, PIC32MX_USBOTG_IE); /* This function is called when the USB activity interrupt occurs. @@ -2564,51 +2337,6 @@ pic32mx_epreserved(struct pic32mx_usbdev_s *priv, int epno) } /**************************************************************************** - * Name: pic32mx_epallocpma - ****************************************************************************/ - -static int pic32mx_epallocpma(struct pic32mx_usbdev_s *priv) -{ - irqstate_t flags; - int bufno = ERROR; - int bufndx; - - flags = irqsave(); - for (bufndx = 2; bufndx < PIC32MX_NBUFFERS; bufndx++) - { - /* Check if this buffer is available */ - - uint8_t bit = PIC32MX_BUFFER_BIT(bufndx); - if ((priv->bufavail & bit) != 0) - { - /* Yes.. Mark the endpoint no longer available */ - - priv->bufavail &= ~bit; - - /* And return the index of the allocated buffer */ - - bufno = bufndx; - break; - } - } - - irqrestore(flags); - return bufno; -} - -/**************************************************************************** - * Name: pic32mx_epfreepma - ****************************************************************************/ - -static inline void -pic32mx_epfreepma(struct pic32mx_usbdev_s *priv, struct pic32mx_ep_s *privep) -{ - irqstate_t flags = irqsave(); - priv->epavail |= PIC32MX_ENDP_BIT(privep->bufno); - irqrestore(flags); -} - -/**************************************************************************** * Endpoint operations ****************************************************************************/ /**************************************************************************** @@ -2620,7 +2348,6 @@ static int pic32mx_epconfigure(struct usbdev_ep_s *ep, bool last) { struct pic32mx_ep_s *privep = (struct pic32mx_ep_s *)ep; - uint16_t pma; uint16_t setting; uint16_t maxpacket; uint8_t epno; @@ -2645,20 +2372,19 @@ static int pic32mx_epconfigure(struct usbdev_ep_s *ep, switch (desc->attr & USB_EP_ATTR_XFERTYPE_MASK) { case USB_EP_ATTR_XFER_INT: /* Interrupt endpoint */ - setting = USB_EPR_EPTYPE_INTERRUPT; +#warning "Missing logic" break; case USB_EP_ATTR_XFER_BULK: /* Bulk endpoint */ - setting = USB_EPR_EPTYPE_BULK; +#warning "Missing logic" break; case USB_EP_ATTR_XFER_ISOC: /* Isochronous endpoint */ -#warning "REVISIT: Need to review isochronous EP setup" - setting = USB_EPR_EPTYPE_ISOC; +#warning "Missing logic" break; case USB_EP_ATTR_XFER_CONTROL: /* Control endpoint */ - setting = USB_EPR_EPTYPE_CONTROL; +#warning "Missing logic" break; default: @@ -2668,10 +2394,8 @@ static int pic32mx_epconfigure(struct usbdev_ep_s *ep, pic32mx_seteptype(epno, setting); - /* Get the address of the PMA buffer allocated for this endpoint */ - -#warning "REVISIT: Should configure BULK EPs using double buffer feature" - pma = PIC32MX_BUFNO2BUF(privep->bufno); + /* Get the address of the buffer allocated for this endpoint */ +#warning "Missing logic" /* Get the maxpacket size of the endpoint. */ @@ -2688,10 +2412,7 @@ static int pic32mx_epconfigure(struct usbdev_ep_s *ep, ep->eplog = USB_EPIN(epno); /* Set up TX; disable RX */ - - pic32mx_seteptxaddr(epno, pma); - pic32mx_seteptxstatus(epno, USB_EPR_STATTX_NAK); - pic32mx_seteprxstatus(epno, USB_EPR_STATRX_DIS); +#warning "Missing logic" } else { @@ -2700,11 +2421,7 @@ static int pic32mx_epconfigure(struct usbdev_ep_s *ep, ep->eplog = USB_EPOUT(epno); /* Set up RX; disable TX */ - - pic32mx_seteprxaddr(epno, pma); - pic32mx_seteprxcount(epno, maxpacket); - pic32mx_seteprxstatus(epno, USB_EPR_STATRX_VALID); - pic32mx_seteptxstatus(epno, USB_EPR_STATTX_DIS); +#warning "Missing logic" } pic32mx_dumpep(epno); @@ -2739,10 +2456,7 @@ static int pic32mx_epdisable(struct usbdev_ep_s *ep) pic32mx_cancelrequests(privep); /* Disable TX; disable RX */ - - pic32mx_seteprxcount(epno, 0); - pic32mx_seteprxstatus(epno, USB_EPR_STATRX_DIS); - pic32mx_seteptxstatus(epno, USB_EPR_STATTX_DIS); +#warning "Missing logic" irqrestore(flags); return OK; @@ -2862,12 +2576,7 @@ static int pic32mx_epsubmit(struct usbdev_ep_s *ep, struct usbdev_req_s *req) if (!privep->txbusy) { - priv->txstatus = USB_EPR_STATTX_NAK; - ret = pic32mx_wrrequest(priv, privep); - - /* Set the new TX status */ - - pic32mx_seteptxstatus(epno, priv->txstatus); + ret = pic32mx_wrrequest(priv, privep); } } @@ -2880,25 +2589,6 @@ static int pic32mx_epsubmit(struct usbdev_ep_s *ep, struct usbdev_req_s *req) privep->txnullpkt = 0; pic32mx_rqenqueue(privep, privreq); usbtrace(TRACE_OUTREQQUEUED(epno), req->len); - - /* This there a incoming data pending the availability of a request? */ - - if (priv->rxpending) - { - /* Set STAT_RX bits to '11' in the USB_EPnR, enabling further - * transactions. "While the STAT_RX bits are equal to '10' - * (NAK), any OUT request addressed to that endpoint is NAKed, - * indicating a flow control condition: the USB host will retry - * the transaction until it succeeds." - */ - - priv->rxstatus = USB_EPR_STATRX_VALID; - pic32mx_seteprxstatus(epno, priv->rxstatus); - - /* Data is no longer pending */ - - priv->rxpending = false; - } } irqrestore(flags); @@ -2939,8 +2629,11 @@ static int pic32mx_epstall(struct usbdev_ep_s *ep, bool resume) { struct pic32mx_ep_s *privep; struct pic32mx_usbdev_s *priv; + volatile struct usbotg_bdtentry_s *bdt; + uint32_t regaddr; + uint16_t regval; uint8_t epno = USB_EPNO(ep->eplog); - uint16_t status; + bool epin; irqstate_t flags; #ifdef CONFIG_DEBUG @@ -2950,35 +2643,32 @@ static int pic32mx_epstall(struct usbdev_ep_s *ep, bool resume) return -EINVAL; } #endif + privep = (struct pic32mx_ep_s *)ep; priv = (struct pic32mx_usbdev_s *)privep->dev; epno = USB_EPNO(ep->eplog); - /* STALL or RESUME the endpoint */ - - flags = irqsave(); - usbtrace(resume ? TRACE_EPRESUME : TRACE_EPSTALL, USB_EPNO(ep->eplog)); + /* Select the BDT for the endpoint */ - /* Get status of the endpoint; stall the request if the endpoint is - * disabled - */ - - if (USB_ISEPIN(ep->eplog)) + epin = USB_ISEPIN(ep->eplog); + if (epin) { - status = pic32mx_geteptxstatus(epno); + /* It is an IN endpoint */ + + bdt = privep->bdtin; } else { - status = pic32mx_geteprxstatus(epno); - } + /* It is an OUT endpoint */ - if (status == 0) - { - usbtrace(TRACE_DEVERROR(PIC32MX_TRACEERR_EPDISABLED), 0); - priv->ctrlstate = CTRLSTATE_STALLED; - return -ENODEV; + bdt = privep->bdtout; } + /* STALL or RESUME the endpoint */ + + flags = irqsave(); + usbtrace(resume ? TRACE_EPRESUME : TRACE_EPSTALL, epno); + /* Handle the resume condition */ if (resume) @@ -2988,45 +2678,52 @@ static int pic32mx_epstall(struct usbdev_ep_s *ep, bool resume) usbtrace(TRACE_EPRESUME, epno); privep->stalled = false; - if (USB_ISEPIN(ep->eplog)) - { - /* IN endpoint */ + /* Point to the appropriate EP register */ - if (pic32mx_eptxstalled(epno)) - { - pic32mx_clrtxdtog(epno); + regaddr = PIC32MX_USB_EP(epno); - /* Restart any queued write requests */ + /* Clear the STALL bit in the UEP register */ - priv->txstatus = USB_EPR_STATTX_NAK; - (void)pic32mx_wrrequest(priv, privep); + regval = pic32mx_getreg(regaddr); + regval &= ~USB_EP_EPSTALL; + pic32mx_putreg(regval, regaddr); - /* Set the new TX status */ + /* Check for an IN endpoint */ - pic32mx_seteptxstatus(epno, priv->txstatus); - } + if (epin) + { + /* If the endpoint is an IN endpoint then we need to return it + * to the CPU and reset the DTS bit so that the next transfer + * is correct + */ + +#ifdef CONFIG_USB_PINGPONG + /* Toggle over the to the next buffer */ + + bdt->status ^= USB_NEXT_PINGPONG; +#endif + bdt->status |= (USB_BDT_COWN | USB_BDT_DATA1); + + /* Restart any queued write requests */ + + (void)pic32mx_wrrequest(priv, privep); } else { - /* OUT endpoint */ - - if (pic32mx_eprxstalled(epno)) - { - if (epno == EP0) - { - /* After clear the STALL, enable the default endpoint receiver */ + /* If the endpoint was an OUT endpoint then we need to give + * control of the endpoint back to the SIE so that the + * function driver can receive the data as they expected. + * Also need to set the DTS bit so the next packet will be + * correct. + */ - pic32mx_seteprxcount(epno, ep->maxpacket); - } - else - { - pic32mx_clrrxdtog(epno); - } +#ifdef CONFIG_USB_PINGPONG + /* Toggle over the to the next buffer */ - priv->rxstatus = USB_EPR_STATRX_VALID; - pic32mx_seteprxstatus(epno, USB_EPR_STATRX_VALID); - } - } + bdt->status ^= USB_NEXT_PINGPONG; +#endif + bdt->status |= (USB_BDT_UOWN | USB_BDT_DATA1 | USB_BDT_DTS); + } } /* Handle the stall condition */ @@ -3036,20 +2733,9 @@ static int pic32mx_epstall(struct usbdev_ep_s *ep, bool resume) usbtrace(TRACE_EPSTALL, epno); privep->stalled = true; - if (USB_ISEPIN(ep->eplog)) - { - /* IN endpoint */ - - priv->txstatus = USB_EPR_STATTX_STALL; - pic32mx_seteptxstatus(epno, USB_EPR_STATTX_STALL); - } - else - { - /* OUT endpoint */ + /* Then STALL the endpoint */ - priv->rxstatus = USB_EPR_STATRX_STALL; - pic32mx_seteprxstatus(epno, USB_EPR_STATRX_STALL); - } + bdt->status |= USB_BDT_UOWN | USB_BDT_BSTALL; } irqrestore(flags); @@ -3069,7 +2755,6 @@ static struct usbdev_ep_s *pic32mx_allocep(struct usbdev_s *dev, uint8_t epno, struct pic32mx_usbdev_s *priv = (struct pic32mx_usbdev_s *)dev; struct pic32mx_ep_s *privep = NULL; uint8_t epset = PIC32MX_ENDP_ALLSET; - int bufno; usbtrace(TRACE_DEVALLOCEP, (uint16_t)epno); #ifdef CONFIG_DEBUG @@ -3119,16 +2804,9 @@ static struct usbdev_ep_s *pic32mx_allocep(struct usbdev_s *dev, uint8_t epno, } epno = USB_EPNO(privep->ep.eplog); - /* Allocate a PMA buffer for this endpoint */ + /* Allocate a resources buffer for this endpoint */ +#warning "Missing logic" -#warning "REVISIT: Should configure BULK EPs using double buffer feature" - bufno = pic32mx_epallocpma(priv); - if (bufno < 0) - { - usbtrace(TRACE_DEVERROR(PIC32MX_TRACEERR_EPBUFFER), 0); - goto errout_with_ep; - } - privep->bufno = (uint8_t)bufno; return &privep->ep; errout_with_ep: @@ -3159,9 +2837,8 @@ static void pic32mx_freeep(struct usbdev_s *dev, struct usbdev_ep_s *ep) if (priv && privep) { - /* Free the PMA buffer assigned to this endpoint */ - - pic32mx_epfreepma(priv, privep); + /* Free the resources assigned to this endpoint */ +#warning "Missing logic" /* Mark the endpoint as available */ @@ -3186,10 +2863,10 @@ static int pic32mx_getframe(struct usbdev_s *dev) #endif /* Return the last frame number detected by the hardware */ - - fnr = pic32mx_getreg(PIC32MX_USB_FNR); +#warning "Missing logic" + fnr = 0; usbtrace(TRACE_DEVGETFRAME, fnr); - return (fnr & USB_FNR_FN_MASK); + return fnr; } /**************************************************************************** @@ -3222,9 +2899,7 @@ static int pic32mx_wakeup(struct usbdev_s *dev) * ESOF interrupt that will drive the resume operations. Clear any * pending ESOF interrupt. */ - - pic32mx_setimask(priv, USB_CNTR_ESOFM, USB_CNTR_WKUPM|USB_CNTR_SUSPM); - pic32mx_putreg(~USB_ISTR_ESOF, PIC32MX_USB_ISTR); +#warning "Missing logic" irqrestore(flags); return OK; } @@ -3254,7 +2929,6 @@ static int pic32mx_selfpowered(struct usbdev_s *dev, bool selfpowered) /**************************************************************************** * Initialization/Reset ****************************************************************************/ - /**************************************************************************** * Name: pic32mx_reset ****************************************************************************/ @@ -3264,8 +2938,7 @@ static void pic32mx_reset(struct pic32mx_usbdev_s *priv) int epno; /* Put the USB controller in reset, disable all interrupts */ - - pic32mx_putreg(USB_CNTR_FRES, PIC32MX_USB_CNTR); +#warning "Missing logic" /* Tell the class driver that we are disconnected. The class driver * should then accept any new configurations. @@ -3276,7 +2949,6 @@ static void pic32mx_reset(struct pic32mx_usbdev_s *priv) /* Reset the device state structure */ priv->ctrlstate = CTRLSTATE_IDLE; - priv->rxpending = false; /* Reset endpoints */ @@ -3456,18 +3128,18 @@ static void pic32mx_hwreset(struct pic32mx_usbdev_s *priv) /* Reset to default address */ pic32mx_putreg(0, PIC32MX_USB_ADDR); - + /* Clear all of the endpoint control registers */ for (i = 0; i < NEP_REGISTERS; i++) { pic32mx_putreg(0, PIC32MX_USB_EP(i)); } - + /* Bring the ping pong buffer pointers out of reset */ regval &= ~USB_CON_PPBRST; - pic32mx_putreg(regval, IC32MX_USB_CON); + pic32mx_putreg(regval, PIC32MX_USB_CON); /* Clear all of the buffer descriptor table (BDT) entries */ @@ -3492,12 +3164,8 @@ static void pic32mx_hwreset(struct pic32mx_usbdev_s *priv) /* Get ready for the first packet */ - privep->bdt = &g_bdt[EP0_IN_EVEN]; - - /* Clear active configuration */ + priv->ep0bdtin = &g_bdt[EP0_IN_EVEN]; - priv->config = 0; - /* Indicate that we are now in the detached state */ priv->devstate = DEVSTATE_DETACHED; @@ -3528,6 +3196,7 @@ static void pic32mx_hwsetup(struct pic32mx_usbdev_s *priv) priv->usbdev.ep0 = &priv->eplist[EP0].ep; priv->epavail = PIC32MX_ENDP_ALLSET & ~PIC32MX_ENDP_BIT(EP0); priv->bufavail = PIC32MX_BUFFER_ALLSET & ~PIC32MX_BUFFER_EP0; + priv->rwakeup = 1; /* Initialize the endpoint list */ @@ -3554,9 +3223,9 @@ static void pic32mx_hwsetup(struct pic32mx_usbdev_s *priv) /* Clear all of the internal pipe information */ - privep->u.inpipe.inuse = 0; - privep->u.outpipe.inuse = 0; - privep->u.outpipe.wcount = 0; + privep->inpipe.inuse = 0; + privep->outpipe.inuse = 0; + privep->outpipe.wcount = 0; } /* Select a smaller endpoint size for EP0 */ @@ -3575,20 +3244,17 @@ static void pic32mx_hwshutdown(struct pic32mx_usbdev_s *priv) priv->usbdev.speed = USB_SPEED_UNKNOWN; /* Disable all interrupts and force the USB controller into reset */ - - pic32mx_putreg(USB_CNTR_FRES, PIC32MX_USB_CNTR); +#warning "Missing logic" /* Clear any pending interrupts */ - - pic32mx_putreg(0, PIC32MX_USB_ISTR); +#warning "Missing logic" /* Disconnect the device / disable the pull-up */ pic32mx_usbpullup(&priv->usbdev, false); /* Power down the USB controller */ - - pic32mx_putreg(USB_CNTR_FRES|USB_CNTR_PDWN, PIC32MX_USB_CNTR); +#warning "Missing logic" } /**************************************************************************** diff --git a/nuttx/arch/mips/src/pic32mx/pic32mx-usbotg.h b/nuttx/arch/mips/src/pic32mx/pic32mx-usbotg.h index 6099ff704..679f353ff 100644 --- a/nuttx/arch/mips/src/pic32mx/pic32mx-usbotg.h +++ b/nuttx/arch/mips/src/pic32mx/pic32mx-usbotg.h @@ -209,6 +209,12 @@ #define USB_STAT_ENDPT_MASK (15 << USB_STAT_ENDPT_SHIFT) # define USB_STAT_ENDPT(n) ((n) << USB_STAT_ENDPT_SHIFT) /* Endpoint n, n=0..15 */ +#define USB_STAT_PPBI_ODD USB_STAT_PPBI /* The last transaction was to the ODD BD bank */ +#define USB_STAT_PPBI_EVEN 0 /* The last transaction was to the EVEN BD bank */ + +#define USB_STAT_DIR_IN USB_STAT_DIR /* Last transaction was a transmit transfer (TX) */ +#define USB_STAT_DIR_OUT 0 /* Last transaction was a receive transfer (RX) */ + /* USB Module Control Register */ #define USB_CON_USBEN (1 << 0) /* Bit 0: USB Module Enable */ |