/* * R8A66597 HCD (Host Controller Driver) * * Copyright (C) 2006-2007 Renesas Solutions Corp. * Portions Copyright (C) 2004 Psion Teklogix (for NetBook PRO) * Portions Copyright (C) 2004-2005 David Brownell * Portions Copyright (C) 1999 Roman Weissgaerber * * 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_NUM_PIPE 10 #define R8A66597_BUF_BSIZE 8 #define R8A66597_MAX_DEVICE 10 #define R8A66597_MAX_ROOT_HUB 2 #define R8A66597_MAX_SAMPLING 5 #define R8A66597_RH_POLL_TIME 10 #define R8A66597_MAX_DMA_CHANNEL 2 #define R8A66597_PIPE_NO_DMA R8A66597_MAX_DMA_CHANNEL #define check_bulk_or_isoc(pipenum) ((pipenum >= 1 && pipenum <= 5)) #define check_interrupt(pipenum) ((pipenum >= 6 && pipenum <= 9)) #define make_devsel(addr) (addr << 12) struct r8a66597_pipe_info { unsigned long timer_interval; u16 pipenum; u16 address; /* R8A66597 HCD usb address */ u16 epnum; u16 maxpacket; u16 type; u16 bufnum; u16 buf_bsize; u16 interval; u16 dir_in; }; struct r8a66597_pipe { struct r8a66597_pipe_info info; unsigned long fifoaddr; unsigned long fifosel; unsigned long fifoctr; unsigned long pipectr; unsigned long pipetre; unsigned long pipetrn; }; struct r8a66597_td { struct r8a66597_pipe *pipe; struct urb *urb; struct list_head queue; u16 type; u16 pipenum; int iso_cnt; u16 address; /* R8A66597's USB address */ u16 maxpacket; unsigned zero_packet:1; unsigned short_packet:1; unsigned set_address:1; }; struct r8a66597_device { u16 address; /* R8A66597's USB address */ u16 hub_port; u16 root_port; unsigned short ep_in_toggle; unsigned short ep_out_toggle; unsigned char pipe_cnt[R8A66597_MAX_NUM_PIPE]; unsigned char dma_map; enum usb_device_state state; struct usb_device *udev; int usb_address; struct list_head device_list; }; struct r8a66597_root_hub { u32 port; u16 old_syssts; int scount; struct r8a66597_device *dev; }; struct r8a66597 { spinlock_t lock; void __iomem *reg; #ifdef CONFIG_HAVE_CLK struct clk *clk; #endif struct r8a66597_platdata *pdata; struct r8a66597_device device0; struct r8a66597_root_hub root_hub[R8A66597_MAX_ROOT_HUB]; struct list_head pipe_queue[R8A66597_MAX_NUM_PIPE]; struct timer_list rh_timer; struct timer_list td_timer[R8A66597_MAX_NUM_PIPE]; struct timer_list interval_timer[R8A66597_MAX_NUM_PIPE]; unsigned short address_map; unsigned short timeout_map; unsigned short interval_map; unsigned char pipe_cnt[R8A66597_MAX_NUM_PIPE]; unsigned char dma_map; unsigned int max_root_hub; struct list_head child_device; unsigned long child_connect_map[4]; unsigned bus_suspended:1; unsigned irq_sense_low:1; }; static inline struct r8a66597 *hcd_to_r8a66597(struct usb_hcd *hcd) { return (struct r8a66597 *)(hcd->hcd_priv); } static inline struct usb_hcd *r8a66597_to_hcd(struct r8a66597 *r8a66597) { return container_of((void *)r8a66597, struct usb_hcd, hcd_priv); } static inline struct r8a66597_td *r8a66597_get_td(struct r8a66597 *r8a66597, u16 pipenum) { if (unlikely(list_empty(&r8a66597->pipe_queue[pipenum]))) return NULL; return list_entry(r8a66597->pipe_queue[pipenum].next, struct r8a66597_td, queue); } static inline struct urb *r8a66597_get_urb(struct r8a66597 *r8a66597, u16 pipenum) { struct r8a66597_td *td; td = r8a66597_get_td(r8a66597, pipenum); return (td ? td->urb : NULL); } 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, u16 *buf, int len) { void __iomem *fifoaddr = r8a66597->reg + offset; unsigned long count; if (r8a66597->pdata->on_chip) { count = len / 4; ioread32_rep(fifoaddr, buf, count); if (len & 0x00000003) { unsigned long tmp = ioread32(fifoaddr); memcpy((unsigned char *)buf + count * 4, &tmp, len & 0x03); } } else { len = (len + 1) / 2; ioread16_rep(fifoaddr, buf, len); } } static inline void r8a66597_write(struct r8a66597 *r8a66597, u16 val, unsigned long offset) { iowrite16(val, r8a66597->reg + offset); } 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); } #define r8a66597_bclr(r8a66597, val, offset) \ r8a66597_mdfy(r8a66597, 0, val, offset) #define r8a66597_bset(r8a66597, val, offset) \ r8a66597_mdfy(r8a66597, val, 0, offset) static inline void r8a66597_write_fifo(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe, u16 *buf, int len) { void __iomem *fifoaddr = r8a66597->reg + pipe->fifoaddr; unsigned long count; unsigned char *pb; int i; if (r8a66597->pdata->on_chip) { count = len / 4; iowrite32_rep(fifoaddr, buf, count); if (len & 0x00000003) { pb = (unsigned char *)buf + count * 4; for (i = 0; i < (len & 0x00000003); i++) { if (r8a66597_read(r8a66597, CFIFOSEL) & BIGEND) iowrite8(pb[i], fifoaddr + i); else iowrite8(pb[i], fifoaddr + 3 - i); } } } else { int odd = len & 0x0001; len = len / 2; iowrite16_rep(fifoaddr, buf, len); if (unlikely(odd)) { buf = &buf[len]; if (r8a66597->pdata->wr0_shorted_to_wr1) r8a66597_bclr(r8a66597, MBW_16, pipe->fifosel); iowrite8((unsigned char)*buf, fifoaddr); if (r8a66597->pdata->wr0_shorted_to_wr1) r8a66597_bset(r8a66597, MBW_16, pipe->fifosel); } } } static inline unsigned long get_syscfg_reg(int port) { return port == 0 ? SYSCFG0 : SYSCFG1; } static inline unsigned long get_syssts_reg(int port) { return port == 0 ? SYSSTS0 : SYSSTS1; } static inline unsigned long get_dvstctr_reg(int port) { return port == 0 ? DVSTCTR0 : DVSTCTR1; } static inline unsigned long get_dmacfg_reg(int port) { return port == 0 ? DMA0CFG : DMA1CFG; } static inline unsigned long get_intenb_reg(int port) { return port == 0 ? INTENB1 : INTENB2; } static inline unsigned long get_intsts_reg(int port) { return port == 0 ? INTSTS1 : INTSTS2; } static inline u16 get_rh_usb_speed(struct r8a66597 *r8a66597, int port) { unsigned long dvstctr_reg = get_dvstctr_reg(port); return r8a66597_read(r8a66597, dvstctr_reg) & RHST; } static inline void r8a66597_port_power(struct r8a66597 *r8a66597, int port, int power) { unsigned long dvstctr_reg = get_dvstctr_reg(port); if (r8a66597->pdata->port_power) { r8a66597->pdata->port_power(port, power); } else { if (power) r8a66597_bset(r8a66597, VBOUT, dvstctr_reg); else r8a66597_bclr(r8a66597, VBOUT, dvstctr_reg); } } 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 get_pipectr_addr(pipenum) (PIPE1CTR + (pipenum - 1) * 2) #define get_pipetre_addr(pipenum) (PIPE1TRE + (pipenum - 1) * 4) #define get_pipetrn_addr(pipenum) (PIPE1TRN + (pipenum - 1) * 4) #define get_devadd_addr(address) (DEVADD0 + address * 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__ */