/* * R8A66597 UDC * * Copyright (C) 2007-2009 Renesas Solutions Corp. * * Author : Yoshihiro Shimoda * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * */ #ifndef __R8A66597_H__ #define __R8A66597_H__ #ifdef CONFIG_HAVE_CLK #include #endif #include #define R8A66597_MAX_SAMPLING 10 #define R8A66597_MAX_NUM_PIPE 8 #define R8A66597_MAX_NUM_BULK 3 #define R8A66597_MAX_NUM_ISOC 2 #define R8A66597_MAX_NUM_INT 2 #define R8A66597_BASE_PIPENUM_BULK 3 #define R8A66597_BASE_PIPENUM_ISOC 1 #define R8A66597_BASE_PIPENUM_INT 6 #define R8A66597_BASE_BUFNUM 6 #define R8A66597_MAX_BUFNUM 0x4F #define is_bulk_pipe(pipenum) \ ((pipenum >= R8A66597_BASE_PIPENUM_BULK) && \ (pipenum < (R8A66597_BASE_PIPENUM_BULK + R8A66597_MAX_NUM_BULK))) #define is_interrupt_pipe(pipenum) \ ((pipenum >= R8A66597_BASE_PIPENUM_INT) && \ (pipenum < (R8A66597_BASE_PIPENUM_INT + R8A66597_MAX_NUM_INT))) #define is_isoc_pipe(pipenum) \ ((pipenum >= R8A66597_BASE_PIPENUM_ISOC) && \ (pipenum < (R8A66597_BASE_PIPENUM_ISOC + R8A66597_MAX_NUM_ISOC))) struct r8a66597_pipe_info { u16 pipe; u16 epnum; u16 maxpacket; u16 type; u16 interval; u16 dir_in; }; struct r8a66597_request { struct usb_request req; struct list_head queue; }; struct r8a66597_ep { struct usb_ep ep; struct r8a66597 *r8a66597; struct list_head queue; unsigned busy:1; unsigned wedge:1; unsigned internal_ccpl:1; /* use only control */ /* this member can able to after r8a66597_enable */ unsigned use_dma:1; u16 pipenum; u16 type; const struct usb_endpoint_descriptor *desc; /* register address */ unsigned char fifoaddr; unsigned char fifosel; unsigned char fifoctr; unsigned char fifotrn; unsigned char pipectr; }; struct r8a66597 { spinlock_t lock; void __iomem *reg; #ifdef CONFIG_HAVE_CLK struct clk *clk; #endif struct r8a66597_platdata *pdata; struct usb_gadget gadget; struct usb_gadget_driver *driver; struct r8a66597_ep ep[R8A66597_MAX_NUM_PIPE]; struct r8a66597_ep *pipenum2ep[R8A66597_MAX_NUM_PIPE]; struct r8a66597_ep *epaddr2ep[16]; struct timer_list timer; struct usb_request *ep0_req; /* for internal request */ u16 ep0_data; /* for internal request */ u16 old_vbus; u16 scount; u16 old_dvsq; /* pipe config */ unsigned char bulk; unsigned char interrupt; unsigned char isochronous; unsigned char num_dma; unsigned irq_sense_low:1; }; #define gadget_to_r8a66597(_gadget) \ container_of(_gadget, struct r8a66597, gadget) #define r8a66597_to_gadget(r8a66597) (&r8a66597->gadget) static inline u16 r8a66597_read(struct r8a66597 *r8a66597, unsigned long offset) { return ioread16(r8a66597->reg + offset); } static inline void r8a66597_read_fifo(struct r8a66597 *r8a66597, unsigned long offset, unsigned char *buf, int len) { void __iomem *fifoaddr = r8a66597->reg + offset; unsigned int data = 0; int i; if (r8a66597->pdata->on_chip) { /* 32-bit accesses for on_chip controllers */ /* aligned buf case */ if (len >= 4 && !((unsigned long)buf & 0x03)) { ioread32_rep(fifoaddr, buf, len / 4); buf += len & ~0x03; len &= 0x03; } /* unaligned buf case */ for (i = 0; i < len; i++) { if (!(i & 0x03)) data = ioread32(fifoaddr); buf[i] = (data >> ((i & 0x03) * 8)) & 0xff; } } else { /* 16-bit accesses for external controllers */ /* aligned buf case */ if (len >= 2 && !((unsigned long)buf & 0x01)) { ioread16_rep(fifoaddr, buf, len / 2); buf += len & ~0x01; len &= 0x01; } /* unaligned buf case */ for (i = 0; i < len; i++) { if (!(i & 0x01)) data = ioread16(fifoaddr); buf[i] = (data >> ((i & 0x01) * 8)) & 0xff; } } } static inline void r8a66597_write(struct r8a66597 *r8a66597, u16 val, unsigned long offset) { iowrite16(val, r8a66597->reg + offset); } static inline void r8a66597_write_fifo(struct r8a66597 *r8a66597, unsigned long offset, unsigned char *buf, int len) { void __iomem *fifoaddr = r8a66597->reg + offset; int adj = 0; int i; if (r8a66597->pdata->on_chip) { /* 32-bit access only if buf is 32-bit aligned */ if (len >= 4 && !((unsigned long)buf & 0x03)) { iowrite32_rep(fifoaddr, buf, len / 4); buf += len & ~0x03; len &= 0x03; } } else { /* 16-bit access only if buf is 16-bit aligned */ if (len >= 2 && !((unsigned long)buf & 0x01)) { iowrite16_rep(fifoaddr, buf, len / 2); buf += len & ~0x01; len &= 0x01; } } /* adjust fifo address in the little endian case */ if (!(r8a66597_read(r8a66597, CFIFOSEL) & BIGEND)) { if (r8a66597->pdata->on_chip) adj = 0x03; /* 32-bit wide */ else adj = 0x01; /* 16-bit wide */ } for (i = 0; i < len; i++) iowrite8(buf[i], fifoaddr + adj - (i & adj)); } static inline void r8a66597_mdfy(struct r8a66597 *r8a66597, u16 val, u16 pat, unsigned long offset) { u16 tmp; tmp = r8a66597_read(r8a66597, offset); tmp = tmp & (~pat); tmp = tmp | val; r8a66597_write(r8a66597, tmp, offset); } static inline u16 get_xtal_from_pdata(struct r8a66597_platdata *pdata) { u16 clock = 0; switch (pdata->xtal) { case R8A66597_PLATDATA_XTAL_12MHZ: clock = XTAL12; break; case R8A66597_PLATDATA_XTAL_24MHZ: clock = XTAL24; break; case R8A66597_PLATDATA_XTAL_48MHZ: clock = XTAL48; break; default: printk(KERN_ERR "r8a66597: platdata clock is wrong.\n"); break; } return clock; } #define r8a66597_bclr(r8a66597, val, offset) \ r8a66597_mdfy(r8a66597, 0, val, offset) #define r8a66597_bset(r8a66597, val, offset) \ r8a66597_mdfy(r8a66597, val, 0, offset) #define get_pipectr_addr(pipenum) (PIPE1CTR + (pipenum - 1) * 2) #define enable_irq_ready(r8a66597, pipenum) \ enable_pipe_irq(r8a66597, pipenum, BRDYENB) #define disable_irq_ready(r8a66597, pipenum) \ disable_pipe_irq(r8a66597, pipenum, BRDYENB) #define enable_irq_empty(r8a66597, pipenum) \ enable_pipe_irq(r8a66597, pipenum, BEMPENB) #define disable_irq_empty(r8a66597, pipenum) \ disable_pipe_irq(r8a66597, pipenum, BEMPENB) #define enable_irq_nrdy(r8a66597, pipenum) \ enable_pipe_irq(r8a66597, pipenum, NRDYENB) #define disable_irq_nrdy(r8a66597, pipenum) \ disable_pipe_irq(r8a66597, pipenum, NRDYENB) #endif /* __R8A66597_H__ */