diff options
Diffstat (limited to 'drivers/usb/r8a66597-hcd.c')
| -rw-r--r-- | drivers/usb/r8a66597-hcd.c | 919 |
1 files changed, 919 insertions, 0 deletions
diff --git a/drivers/usb/r8a66597-hcd.c b/drivers/usb/r8a66597-hcd.c new file mode 100644 index 0000000..0d3931e --- /dev/null +++ b/drivers/usb/r8a66597-hcd.c @@ -0,0 +1,919 @@ +/* + * R8A66597 HCD (Host Controller Driver) for u-boot + * + * Copyright (C) 2008 Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> + * + * 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 + * + */ + +#include <common.h> +#include <usb.h> +#include <asm/io.h> + +#include "r8a66597.h" + +#ifdef R8A66597_DEBUG +#define R8A66597_DPRINT printf +#else +#define R8A66597_DPRINT(...) +#endif + +static const char hcd_name[] = "r8a66597_hcd"; +static unsigned short clock = CONFIG_R8A66597_XTAL; +static unsigned short vif = CONFIG_R8A66597_LDRV; +static unsigned short endian = CONFIG_R8A66597_ENDIAN; +static struct r8a66597 gr8a66597; + +static void set_devadd_reg(struct r8a66597 *r8a66597, u8 r8a66597_address, + u16 usbspd, u8 upphub, u8 hubport, int port) +{ + u16 val; + unsigned long devadd_reg = get_devadd_addr(r8a66597_address); + + val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001); + r8a66597_write(r8a66597, val, devadd_reg); +} + +static int r8a66597_clock_enable(struct r8a66597 *r8a66597) +{ + u16 tmp; + int i = 0; + +#if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) + do { + r8a66597_write(r8a66597, SCKE, SYSCFG0); + tmp = r8a66597_read(r8a66597, SYSCFG0); + if (i++ > 1000) { + printf("register access fail.\n"); + return -1; + } + } while ((tmp & SCKE) != SCKE); + r8a66597_write(r8a66597, 0x04, 0x02); +#else + do { + r8a66597_write(r8a66597, USBE, SYSCFG0); + tmp = r8a66597_read(r8a66597, SYSCFG0); + if (i++ > 1000) { + printf("register access fail.\n"); + return -1; + } + } while ((tmp & USBE) != USBE); + r8a66597_bclr(r8a66597, USBE, SYSCFG0); + r8a66597_mdfy(r8a66597, clock, XTAL, SYSCFG0); + + i = 0; + r8a66597_bset(r8a66597, XCKE, SYSCFG0); + do { + udelay(1000); + tmp = r8a66597_read(r8a66597, SYSCFG0); + if (i++ > 500) { + printf("register access fail.\n"); + return -1; + } + } while ((tmp & SCKE) != SCKE); +#endif /* #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) */ + + return 0; +} + +static void r8a66597_clock_disable(struct r8a66597 *r8a66597) +{ + r8a66597_bclr(r8a66597, SCKE, SYSCFG0); + udelay(1); +#if !defined(CONFIG_SUPERH_ON_CHIP_R8A66597) + r8a66597_bclr(r8a66597, PLLC, SYSCFG0); + r8a66597_bclr(r8a66597, XCKE, SYSCFG0); + r8a66597_bclr(r8a66597, USBE, SYSCFG0); +#endif +} + +static void r8a66597_enable_port(struct r8a66597 *r8a66597, int port) +{ + u16 val; + + val = port ? DRPD : DCFM | DRPD; + r8a66597_bset(r8a66597, val, get_syscfg_reg(port)); + r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port)); + + r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, get_dmacfg_reg(port)); +} + +static void r8a66597_disable_port(struct r8a66597 *r8a66597, int port) +{ + u16 val, tmp; + + r8a66597_write(r8a66597, 0, get_intenb_reg(port)); + r8a66597_write(r8a66597, 0, get_intsts_reg(port)); + + r8a66597_port_power(r8a66597, port, 0); + + do { + tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS; + udelay(640); + } while (tmp == EDGESTS); + + val = port ? DRPD : DCFM | DRPD; + r8a66597_bclr(r8a66597, val, get_syscfg_reg(port)); + r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port)); +} + +static int enable_controller(struct r8a66597 *r8a66597) +{ + int ret, port; + + ret = r8a66597_clock_enable(r8a66597); + if (ret < 0) + return ret; + + r8a66597_bset(r8a66597, vif & LDRV, PINCFG); + r8a66597_bset(r8a66597, USBE, SYSCFG0); + + r8a66597_bset(r8a66597, INTL, SOFCFG); + r8a66597_write(r8a66597, 0, INTENB0); + r8a66597_write(r8a66597, 0, INTENB1); + r8a66597_write(r8a66597, 0, INTENB2); + + r8a66597_bset(r8a66597, endian & BIGEND, CFIFOSEL); + r8a66597_bset(r8a66597, endian & BIGEND, D0FIFOSEL); + r8a66597_bset(r8a66597, endian & BIGEND, D1FIFOSEL); + r8a66597_bset(r8a66597, TRNENSEL, SOFCFG); + + for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) + r8a66597_enable_port(r8a66597, port); + + return 0; +} + +static void disable_controller(struct r8a66597 *r8a66597) +{ + int i; + + if (!(r8a66597_read(r8a66597, SYSCFG0) & USBE)) + return; + + r8a66597_write(r8a66597, 0, INTENB0); + r8a66597_write(r8a66597, 0, INTSTS0); + + r8a66597_write(r8a66597, 0, D0FIFOSEL); + r8a66597_write(r8a66597, 0, D1FIFOSEL); + r8a66597_write(r8a66597, 0, DCPCFG); + r8a66597_write(r8a66597, 0x40, DCPMAXP); + r8a66597_write(r8a66597, 0, DCPCTR); + + for (i = 0; i <= 10; i++) + r8a66597_write(r8a66597, 0, get_devadd_addr(i)); + for (i = 1; i <= 5; i++) { + r8a66597_write(r8a66597, 0, get_pipetre_addr(i)); + r8a66597_write(r8a66597, 0, get_pipetrn_addr(i)); + } + for (i = 1; i < R8A66597_MAX_NUM_PIPE; i++) { + r8a66597_write(r8a66597, 0, get_pipectr_addr(i)); + r8a66597_write(r8a66597, i, PIPESEL); + r8a66597_write(r8a66597, 0, PIPECFG); + r8a66597_write(r8a66597, 0, PIPEBUF); + r8a66597_write(r8a66597, 0, PIPEMAXP); + r8a66597_write(r8a66597, 0, PIPEPERI); + } + + for (i = 0; i < R8A66597_MAX_ROOT_HUB; i++) + r8a66597_disable_port(r8a66597, i); + + r8a66597_clock_disable(r8a66597); +} + +static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg, + u16 mask, u16 loop) +{ + u16 tmp; + int i = 0; + + do { + tmp = r8a66597_read(r8a66597, reg); + if (i++ > 1000000) { + printf("register%lx, loop %x is timeout\n", reg, loop); + break; + } + } while ((tmp & mask) != loop); +} + +static void pipe_buffer_setting(struct r8a66597 *r8a66597, + struct usb_device *dev, unsigned long pipe) +{ + u16 val = 0; + u16 pipenum, bufnum, maxpacket; + + if (usb_pipein(pipe)) { + pipenum = BULK_IN_PIPENUM; + bufnum = BULK_IN_BUFNUM; + maxpacket = dev->epmaxpacketin[usb_pipeendpoint(pipe)]; + } else { + pipenum = BULK_OUT_PIPENUM; + bufnum = BULK_OUT_BUFNUM; + maxpacket = dev->epmaxpacketout[usb_pipeendpoint(pipe)]; + } + + if (r8a66597->pipe_config & (1 << pipenum)) + return; + r8a66597->pipe_config |= (1 << pipenum); + + r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(pipenum)); + r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(pipenum)); + r8a66597_write(r8a66597, pipenum, PIPESEL); + + /* FIXME: This driver support bulk transfer only. */ + if (!usb_pipein(pipe)) + val |= R8A66597_DIR; + else + val |= R8A66597_SHTNAK; + val |= R8A66597_BULK | R8A66597_DBLB | usb_pipeendpoint(pipe); + r8a66597_write(r8a66597, val, PIPECFG); + + r8a66597_write(r8a66597, (8 << 10) | bufnum, PIPEBUF); + r8a66597_write(r8a66597, make_devsel(usb_pipedevice(pipe)) | + maxpacket, PIPEMAXP); + r8a66597_write(r8a66597, 0, PIPEPERI); + r8a66597_write(r8a66597, SQCLR, get_pipectr_addr(pipenum)); +} + +static int send_setup_packet(struct r8a66597 *r8a66597, struct usb_device *dev, + struct devrequest *setup) +{ + int i; + unsigned short *p = (unsigned short *)setup; + unsigned long setup_addr = USBREQ; + u16 intsts1; + int timeout = 3000; + u16 devsel = setup->request == USB_REQ_SET_ADDRESS ? 0 : dev->devnum; + + r8a66597_write(r8a66597, make_devsel(devsel) | + (8 << dev->maxpacketsize), DCPMAXP); + r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1); + + for (i = 0; i < 4; i++) { + r8a66597_write(r8a66597, le16_to_cpu(p[i]), setup_addr); + setup_addr += 2; + } + r8a66597_write(r8a66597, ~0x0001, BRDYSTS); + r8a66597_write(r8a66597, SUREQ, DCPCTR); + + while (1) { + intsts1 = r8a66597_read(r8a66597, INTSTS1); + if (intsts1 & SACK) + break; + if (intsts1 & SIGN) { + printf("setup packet send error\n"); + return -1; + } + if (timeout-- < 0) { + printf("setup packet timeout\n"); + return -1; + } + udelay(500); + } + + return 0; +} + +static int send_bulk_packet(struct r8a66597 *r8a66597, struct usb_device *dev, + unsigned long pipe, void *buffer, int transfer_len) +{ + u16 tmp, bufsize; + u16 *buf; + size_t size; + + R8A66597_DPRINT("%s\n", __func__); + + r8a66597_mdfy(r8a66597, MBW | BULK_OUT_PIPENUM, + MBW | CURPIPE, CFIFOSEL); + r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, BULK_OUT_PIPENUM); + tmp = r8a66597_read(r8a66597, CFIFOCTR); + if ((tmp & FRDY) == 0) { + printf("%s FRDY is not set (%x)\n", __func__, tmp); + return -1; + } + + /* prepare parameters */ + bufsize = dev->epmaxpacketout[usb_pipeendpoint(pipe)]; + buf = (u16 *)(buffer + dev->act_len); + size = min((int)bufsize, transfer_len - dev->act_len); + + /* write fifo */ + r8a66597_write(r8a66597, ~(1 << BULK_OUT_PIPENUM), BEMPSTS); + if (buffer) { + r8a66597_write_fifo(r8a66597, CFIFO, buf, size); + r8a66597_write(r8a66597, BVAL, CFIFOCTR); + } + + /* update parameters */ + dev->act_len += size; + + r8a66597_mdfy(r8a66597, PID_BUF, PID, + get_pipectr_addr(BULK_OUT_PIPENUM)); + + while (!(r8a66597_read(r8a66597, BEMPSTS) & (1 << BULK_OUT_PIPENUM))) + if (ctrlc()) + return -1; + r8a66597_write(r8a66597, ~(1 << BULK_OUT_PIPENUM), BEMPSTS); + + if (dev->act_len >= transfer_len) + r8a66597_mdfy(r8a66597, PID_NAK, PID, + get_pipectr_addr(BULK_OUT_PIPENUM)); + + return 0; +} + +static int receive_bulk_packet(struct r8a66597 *r8a66597, + struct usb_device *dev, + unsigned long pipe, + void *buffer, int transfer_len) +{ + u16 tmp; + u16 *buf; + const u16 pipenum = BULK_IN_PIPENUM; + int rcv_len; + int maxpacket = dev->epmaxpacketin[usb_pipeendpoint(pipe)]; + + R8A66597_DPRINT("%s\n", __func__); + + /* prepare */ + if (dev->act_len == 0) { + r8a66597_mdfy(r8a66597, PID_NAK, PID, + get_pipectr_addr(pipenum)); + r8a66597_write(r8a66597, ~(1 << pipenum), BRDYSTS); + + r8a66597_write(r8a66597, TRCLR, get_pipetre_addr(pipenum)); + r8a66597_write(r8a66597, + (transfer_len + maxpacket - 1) / maxpacket, + get_pipetrn_addr(pipenum)); + r8a66597_bset(r8a66597, TRENB, get_pipetre_addr(pipenum)); + + r8a66597_mdfy(r8a66597, PID_BUF, PID, + get_pipectr_addr(pipenum)); + } + + r8a66597_mdfy(r8a66597, MBW | pipenum, MBW | CURPIPE, CFIFOSEL); + r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum); + + while (!(r8a66597_read(r8a66597, BRDYSTS) & (1 << pipenum))) + if (ctrlc()) + return -1; + r8a66597_write(r8a66597, ~(1 << pipenum), BRDYSTS); + + tmp = r8a66597_read(r8a66597, CFIFOCTR); + if ((tmp & FRDY) == 0) { + printf("%s FRDY is not set. (%x)\n", __func__, tmp); + return -1; + } + + buf = (u16 *)(buffer + dev->act_len); + rcv_len = tmp & DTLN; + dev->act_len += rcv_len; + + if (buffer) { + if (rcv_len == 0) + r8a66597_write(r8a66597, BCLR, CFIFOCTR); + else + r8a66597_read_fifo(r8a66597, CFIFO, buf, rcv_len); + } + + return 0; +} + +static int receive_control_packet(struct r8a66597 *r8a66597, + struct usb_device *dev, + void *buffer, int transfer_len) +{ + u16 tmp; + int rcv_len; + + /* FIXME: limit transfer size : 64byte or less */ + + r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); + r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); + r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); + r8a66597_bset(r8a66597, SQSET, DCPCTR); + r8a66597_write(r8a66597, BCLR, CFIFOCTR); + r8a66597_mdfy(r8a66597, PID_BUF, PID, DCPCTR); + + while (!(r8a66597_read(r8a66597, BRDYSTS) & 0x0001)) + if (ctrlc()) + return -1; + r8a66597_write(r8a66597, ~0x0001, BRDYSTS); + + r8a66597_mdfy(r8a66597, MBW, MBW | CURPIPE, CFIFOSEL); + r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); + + tmp = r8a66597_read(r8a66597, CFIFOCTR); + if ((tmp & FRDY) == 0) { + printf("%s FRDY is not set. (%x)\n", __func__, tmp); + return -1; + } + + rcv_len = tmp & DTLN; + dev->act_len += rcv_len; + + r8a66597_mdfy(r8a66597, PID_NAK, PID, DCPCTR); + + if (buffer) { + if (rcv_len == 0) + r8a66597_write(r8a66597, BCLR, DCPCTR); + else + r8a66597_read_fifo(r8a66597, CFIFO, buffer, rcv_len); + } + + return 0; +} + +static int send_status_packet(struct r8a66597 *r8a66597, + unsigned long pipe) +{ + r8a66597_bset(r8a66597, SQSET, DCPCTR); + r8a66597_mdfy(r8a66597, PID_NAK, PID, DCPCTR); + + if (usb_pipein(pipe)) { + r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); + r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); + r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); + r8a66597_write(r8a66597, ~BEMP0, BEMPSTS); + r8a66597_write(r8a66597, BCLR | BVAL, CFIFOCTR); + } else { + r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); + r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); + r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); + r8a66597_write(r8a66597, BCLR, CFIFOCTR); + } + r8a66597_mdfy(r8a66597, PID_BUF, PID, DCPCTR); + + while (!(r8a66597_read(r8a66597, BEMPSTS) & 0x0001)) + if (ctrlc()) + return -1; + + return 0; +} + +static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port) +{ + int count = R8A66597_MAX_SAMPLING; + unsigned short syssts, old_syssts; + + R8A66597_DPRINT("%s\n", __func__); + + old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port) & LNST); + while (count > 0) { + wait_ms(R8A66597_RH_POLL_TIME); + + syssts = r8a66597_read(r8a66597, get_syssts_reg(port) & LNST); + if (syssts == old_syssts) { + count--; + } else { + count = R8A66597_MAX_SAMPLING; + old_syssts = syssts; + } + } +} + +static void r8a66597_bus_reset(struct r8a66597 *r8a66597, int port) +{ + wait_ms(10); + r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT, get_dvstctr_reg(port)); + wait_ms(50); + r8a66597_mdfy(r8a66597, UACT, USBRST | UACT, get_dvstctr_reg(port)); + wait_ms(50); +} + +static int check_usb_device_connecting(struct r8a66597 *r8a66597) +{ + int timeout = 10000; /* 100usec * 10000 = 1sec */ + int i; + + for (i = 0; i < 5; i++) { + /* check a usb cable connect */ + while (!(r8a66597_read(r8a66597, INTSTS1) & ATTCH)) { + if (timeout-- < 0) { + printf("%s timeout.\n", __func__); + return -1; + } + udelay(100); + } + + /* check a data line */ + r8a66597_check_syssts(r8a66597, 0); + + r8a66597_bus_reset(r8a66597, 0); + r8a66597->speed = get_rh_usb_speed(r8a66597, 0); + + if (!(r8a66597_read(r8a66597, INTSTS1) & DTCH)) { + r8a66597->port_change = USB_PORT_STAT_C_CONNECTION; + r8a66597->port_status = USB_PORT_STAT_CONNECTION | + USB_PORT_STAT_ENABLE; + return 0; /* success */ + } + + R8A66597_DPRINT("USB device has detached. retry = %d\n", i); + r8a66597_write(r8a66597, ~DTCH, INTSTS1); + } + + return -1; /* fail */ +} + +/* based on usb_ohci.c */ +#define min_t(type, x, y) \ + ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; }) +/*-------------------------------------------------------------------------* + * Virtual Root Hub + *-------------------------------------------------------------------------*/ + +/* Device descriptor */ +static __u8 root_hub_dev_des[] = +{ + 0x12, /* __u8 bLength; */ + 0x01, /* __u8 bDescriptorType; Device */ + 0x10, /* __u16 bcdUSB; v1.1 */ + 0x01, + 0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */ + 0x00, /* __u8 bDeviceSubClass; */ + 0x00, /* __u8 bDeviceProtocol; */ + 0x08, /* __u8 bMaxPacketSize0; 8 Bytes */ + 0x00, /* __u16 idVendor; */ + 0x00, + 0x00, /* __u16 idProduct; */ + 0x00, + 0x00, /* __u16 bcdDevice; */ + 0x00, + 0x00, /* __u8 iManufacturer; */ + 0x01, /* __u8 iProduct; */ + 0x00, /* __u8 iSerialNumber; */ + 0x01 /* __u8 bNumConfigurations; */ +}; + +/* Configuration descriptor */ +static __u8 root_hub_config_des[] = +{ + 0x09, /* __u8 bLength; */ + 0x02, /* __u8 bDescriptorType; Configuration */ + 0x19, /* __u16 wTotalLength; */ + 0x00, + 0x01, /* __u8 bNumInterfaces; */ + 0x01, /* __u8 bConfigurationValue; */ + 0x00, /* __u8 iConfiguration; */ + 0x40, /* __u8 bmAttributes; */ + + 0x00, /* __u8 MaxPower; */ + + /* interface */ + 0x09, /* __u8 if_bLength; */ + 0x04, /* __u8 if_bDescriptorType; Interface */ + 0x00, /* __u8 if_bInterfaceNumber; */ + 0x00, /* __u8 if_bAlternateSetting; */ + 0x01, /* __u8 if_bNumEndpoints; */ + 0x09, /* __u8 if_bInterfaceClass; HUB_CLASSCODE */ + 0x00, /* __u8 if_bInterfaceSubClass; */ + 0x00, /* __u8 if_bInterfaceProtocol; */ + 0x00, /* __u8 if_iInterface; */ + + /* endpoint */ + 0x07, /* __u8 ep_bLength; */ + 0x05, /* __u8 ep_bDescriptorType; Endpoint */ + 0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */ + 0x03, /* __u8 ep_bmAttributes; Interrupt */ + 0x02, /* __u16 ep_wMaxPacketSize; ((MAX_ROOT_PORTS + 1) / 8 */ + 0x00, + 0xff /* __u8 ep_bInterval; 255 ms */ +}; + +static unsigned char root_hub_str_index0[] = +{ + 0x04, /* __u8 bLength; */ + 0x03, /* __u8 bDescriptorType; String-descriptor */ + 0x09, /* __u8 lang ID */ + 0x04, /* __u8 lang ID */ +}; + +static unsigned char root_hub_str_index1[] = +{ + 34, /* __u8 bLength; */ + 0x03, /* __u8 bDescriptorType; String-descriptor */ + 'R', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + '8', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'A', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + '6', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + '6', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + '5', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + '9', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + '7', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + ' ', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'R', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'o', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'o', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 't', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'H', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'u', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'b', /* __u8 Unicode */ + 0, /* __u8 Unicode */ +}; + +static int r8a66597_submit_rh_msg(struct usb_device *dev, unsigned long pipe, + void *buffer, int transfer_len, struct devrequest *cmd) +{ + struct r8a66597 *r8a66597 = &gr8a66597; + int leni = transfer_len; + int len = 0; + int stat = 0; + __u16 bmRType_bReq; + __u16 wValue; + __u16 wIndex; + __u16 wLength; + unsigned char data[32]; + + R8A66597_DPRINT("%s\n", __func__); + + if ((pipe & PIPE_INTERRUPT) == PIPE_INTERRUPT) { + printf("Root-Hub submit IRQ: NOT implemented"); + return 0; + } + + bmRType_bReq = cmd->requesttype | (cmd->request << 8); + wValue = cpu_to_le16 (cmd->value); + wIndex = cpu_to_le16 (cmd->index); + wLength = cpu_to_le16 (cmd->length); + + switch (bmRType_bReq) { + case RH_GET_STATUS: + *(__u16 *)buffer = cpu_to_le16(1); + len = 2; + break; + case RH_GET_STATUS | RH_INTERFACE: + *(__u16 *)buffer = cpu_to_le16(0); + len = 2; + break; + case RH_GET_STATUS | RH_ENDPOINT: + *(__u16 *)buffer = cpu_to_le16(0); + len = 2; + break; + case RH_GET_STATUS | RH_CLASS: + *(__u32 *)buffer = cpu_to_le32(0); + len = 4; + break; + case RH_GET_STATUS | RH_OTHER | RH_CLASS: + *(__u32 *)buffer = cpu_to_le32(r8a66597->port_status | + (r8a66597->port_change << 16)); + len = 4; + break; + case RH_CLEAR_FEATURE | RH_ENDPOINT: + case RH_CLEAR_FEATURE | RH_CLASS: + break; + + case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS: + switch (wValue) { + case RH_C_PORT_CONNECTION: + r8a66597->port_change &= ~USB_PORT_STAT_C_CONNECTION; + break; + } + break; + + case RH_SET_FEATURE | RH_OTHER | RH_CLASS: + switch (wValue) { + case (RH_PORT_SUSPEND): + break; + case (RH_PORT_RESET): + r8a66597_bus_reset(r8a66597, 0); + break; + case (RH_PORT_POWER): + break; + case (RH_PORT_ENABLE): + break; + } + break; + case RH_SET_ADDRESS: + gr8a66597.rh_devnum = wValue; + break; + case RH_GET_DESCRIPTOR: + switch ((wValue & 0xff00) >> 8) { + case (0x01): /* device descriptor */ + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof(root_hub_dev_des), + wLength)); + memcpy(buffer, root_hub_dev_des, len); + break; + case (0x02): /* configuration descriptor */ + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof(root_hub_config_des), + wLength)); + memcpy(buffer, root_hub_config_des, len); + break; + case (0x03): /* string descriptors */ + if (wValue == 0x0300) { + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof(root_hub_str_index0), + wLength)); + memcpy(buffer, root_hub_str_index0, len); + } + if (wValue == 0x0301) { + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof(root_hub_str_index1), + wLength)); + memcpy(buffer, root_hub_str_index1, len); + } + break; + default: + stat = USB_ST_STALLED; + } + break; + + case RH_GET_DESCRIPTOR | RH_CLASS: + { + __u32 temp = 0x00000001; + + data[0] = 9; /* min length; */ + data[1] = 0x29; + data[2] = temp & RH_A_NDP; + data[3] = 0; + if (temp & RH_A_PSM) + data[3] |= 0x1; + if (temp & RH_A_NOCP) + data[3] |= 0x10; + else if (temp & RH_A_OCPM) + data[3] |= 0x8; + + /* corresponds to data[4-7] */ + data[5] = (temp & RH_A_POTPGT) >> 24; + data[7] = temp & RH_B_DR; + if (data[2] < 7) { + data[8] = 0xff; + } else { + data[0] += 2; + data[8] = (temp & RH_B_DR) >> 8; + data[10] = data[9] = 0xff; + } + + len = min_t(unsigned int, leni, + min_t(unsigned int, data[0], wLength)); + memcpy(buffer, data, len); + break; + } + + case RH_GET_CONFIGURATION: + *(__u8 *) buffer = 0x01; + len = 1; + break; + case RH_SET_CONFIGURATION: + break; + default: + dbg("unsupported root hub command"); + stat = USB_ST_STALLED; + } + + wait_ms(1); + + len = min_t(int, len, leni); + + dev->act_len = len; + dev->status = stat; + + return stat; +} + +int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len) +{ + struct r8a66597 *r8a66597 = &gr8a66597; + int ret = 0; + + R8A66597_DPRINT("%s\n", __func__); + R8A66597_DPRINT("pipe = %08x, buffer = %p, len = %d, devnum = %d\n", + pipe, buffer, transfer_len, dev->devnum); + + set_devadd_reg(r8a66597, dev->devnum, r8a66597->speed, 0, 0, 0); + + pipe_buffer_setting(r8a66597, dev, pipe); + + dev->act_len = 0; + while (dev->act_len < transfer_len && ret == 0) { + if (ctrlc()) + return -1; + + if (usb_pipein(pipe)) + ret = receive_bulk_packet(r8a66597, dev, pipe, buffer, + transfer_len); + else + ret = send_bulk_packet(r8a66597, dev, pipe, buffer, + transfer_len); + } + + if (ret == 0) + dev->status = 0; + + return ret; +} + +int submit_control_msg(struct usb_device *dev, unsigned long pipe, + void *buffer, int transfer_len, struct devrequest *setup) +{ + struct r8a66597 *r8a66597 = &gr8a66597; + u16 r8a66597_address = setup->request == USB_REQ_SET_ADDRESS ? + 0 : dev->devnum; + + R8A66597_DPRINT("%s\n", __func__); + if (usb_pipedevice(pipe) == r8a66597->rh_devnum) + return r8a66597_submit_rh_msg(dev, pipe, buffer, transfer_len, + setup); + + R8A66597_DPRINT("%s: setup\n", __func__); + set_devadd_reg(r8a66597, r8a66597_address, r8a66597->speed, 0, 0, 0); + + if (send_setup_packet(r8a66597, dev, setup) < 0) { + printf("setup packet send error\n"); + return -1; + } + + if (usb_pipein(pipe)) + if (receive_control_packet(r8a66597, dev, buffer, + transfer_len) < 0) + return -1; + + if (send_status_packet(r8a66597, pipe) < 0) + return -1; + + dev->status = 0; + + return 0; +} + +int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len, int interval) +{ + /* no implement */ + R8A66597_DPRINT("%s\n", __func__); + return 0; +} + +void usb_event_poll(void) +{ + /* no implement */ + R8A66597_DPRINT("%s\n", __func__); +} + +int usb_lowlevel_init(void) +{ + struct r8a66597 *r8a66597 = &gr8a66597; + + R8A66597_DPRINT("%s\n", __func__); + + memset(r8a66597, 0, sizeof(r8a66597)); + r8a66597->reg = CONFIG_R8A66597_BASE_ADDR; + + disable_controller(r8a66597); + wait_ms(100); + + enable_controller(r8a66597); + r8a66597_port_power(r8a66597, 0 , 1); + + /* check usb device */ + check_usb_device_connecting(r8a66597); + + wait_ms(50); + + return 0; +} + +int usb_lowlevel_stop(void) +{ + disable_controller(&gr8a66597); + + return 0; +} |