diff options
Diffstat (limited to 'carl9170fw/carlfw/usb/main.c')
| -rw-r--r-- | carl9170fw/carlfw/usb/main.c | 432 |
1 files changed, 0 insertions, 432 deletions
diff --git a/carl9170fw/carlfw/usb/main.c b/carl9170fw/carlfw/usb/main.c deleted file mode 100644 index 890970c..0000000 --- a/carl9170fw/carlfw/usb/main.c +++ /dev/null @@ -1,432 +0,0 @@ -/* - * carl9170 firmware - used by the ar9170 wireless device - * - * Copyright (c) 2000-2005 ZyDAS Technology Corporation - * Copyright (c) 2007-2009 Atheros Communications, Inc. - * Copyright 2009 Johannes Berg <johannes@sipsolutions.net> - * Copyright 2009-2011 Christian Lamparter <chunkeey@googlemail.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; either version 2 of the License, or - * (at your option) any later version. - * - * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include "carl9170.h" - -#include "shared/phy.h" -#include "hostif.h" -#include "printf.h" -#include "timer.h" -#include "rom.h" -#include "wl.h" -#include "wol.h" - -#ifdef CONFIG_CARL9170FW_DEBUG_USB -void usb_putc(const char c) -{ - fw.usb.put_buffer[fw.usb.put_index++] = (uint8_t) c; - - if (fw.usb.put_index == CARL9170_MAX_CMD_PAYLOAD_LEN || c == '\0') { - fw.usb.put_buffer[fw.usb.put_index] = 0; - - send_cmd_to_host(__roundup(fw.usb.put_index, 4), - CARL9170_RSP_TEXT, fw.usb.put_index, - fw.usb.put_buffer); - fw.usb.put_index = 0; - } -} - -void usb_print_hex_dump(const void *buf, int len) -{ - unsigned int offset = 0, block = 0; - while (len > 0) { - block = min(__roundup(len, 4), CARL9170_MAX_CMD_PAYLOAD_LEN); - - send_cmd_to_host(block, CARL9170_RSP_HEXDUMP, len, - (const uint8_t *) buf + offset); - - offset += block; - len -= block; - } -} -#endif /* CONFIG_CARL9170FW_DEBUG_USB */ - -/* grab a buffer from the interrupt in queue ring-buffer */ -static struct carl9170_rsp *get_int_buf(void) -{ - struct carl9170_rsp *tmp; - - /* fetch the _oldest_ buffer from the ring */ - tmp = &fw.usb.int_buf[fw.usb.int_tail_index]; - - /* assign a unique sequence for every response/trap */ - tmp->hdr.seq = fw.usb.int_tail_index; - - fw.usb.int_tail_index++; - - fw.usb.int_tail_index %= CARL9170_INT_RQ_CACHES; - if (fw.usb.int_pending != CARL9170_INT_RQ_CACHES) - fw.usb.int_pending++; - - return tmp; -} - -/* Pop up data from Interrupt IN Queue to USB Response buffer */ -static struct carl9170_rsp *dequeue_int_buf(unsigned int space) -{ - struct carl9170_rsp *tmp = NULL; - - if (fw.usb.int_pending > 0) { - tmp = &fw.usb.int_buf[fw.usb.int_head_index]; - - if ((unsigned int)(tmp->hdr.len + 8) > space) - return NULL; - - fw.usb.int_head_index++; - fw.usb.int_head_index %= CARL9170_INT_RQ_CACHES; - fw.usb.int_pending--; - } - - return tmp; -} - -static void usb_data_in(void) -{ -} - -static void usb_reg_out(void) -{ - uint32_t *regaddr = (uint32_t *) &dma_mem.reserved.cmd; - uint16_t usbfifolen, i; - - usb_reset_out(); - - usbfifolen = getb(AR9170_USB_REG_EP4_BYTE_COUNT_LOW) | - getb(AR9170_USB_REG_EP4_BYTE_COUNT_HIGH) << 8; - - if (usbfifolen & 0x3) - usbfifolen = (usbfifolen >> 2) + 1; - else - usbfifolen = usbfifolen >> 2; - - for (i = 0; i < usbfifolen; i++) - *regaddr++ = get(AR9170_USB_REG_EP4_DATA); - - handle_cmd(get_int_buf()); - - usb_trigger_in(); -} - -static void usb_status_in(void) -{ - struct carl9170_rsp *rsp; - unsigned int rem, tlen, elen; - - if (!fw.usb.int_desc_available) - return ; - - fw.usb.int_desc_available = 0; - - rem = AR9170_BLOCK_SIZE - AR9170_INT_MAGIC_HEADER_SIZE; - tlen = AR9170_INT_MAGIC_HEADER_SIZE; - - usb_reset_in(); - - while (fw.usb.int_pending) { - rsp = dequeue_int_buf(rem); - if (!rsp) - break; - - elen = rsp->hdr.len + 4; - - memcpy(DESC_PAYLOAD_OFF(fw.usb.int_desc, tlen), rsp, elen); - - rem -= elen; - tlen += elen; - } - - if (tlen == AR9170_INT_MAGIC_HEADER_SIZE) { - DBG("attempted to send an empty int response!\n"); - goto reclaim; - } - - fw.usb.int_desc->ctrl = AR9170_CTRL_FS_BIT | AR9170_CTRL_LS_BIT; - fw.usb.int_desc->totalLen = tlen; - fw.usb.int_desc->dataSize = tlen; - - /* Put to UpQ */ - dma_put(&fw.pta.up_queue, fw.usb.int_desc); - - /* Trigger PTA UP DMA */ - set(AR9170_PTA_REG_UP_DMA_TRIGGER, 1); - usb_trigger_out(); - - return ; - -reclaim: - /* TODO: not sure what to do here */ - fw.usb.int_desc_available = 1; -} - -void send_cmd_to_host(const uint8_t len, const uint8_t type, - const uint8_t ext, const uint8_t *body) -{ - struct carl9170_cmd *resp; - -#ifdef CONFIG_CARL9170FW_DEBUG - if (unlikely(len > sizeof(resp->data))) { - DBG("CMD too long:%x %d\n", type, len); - return ; - } - - /* Element length must be a multiple of 4. */ - if (unlikely(len & 0x3)) { - DBG("CMD length not mult. of 4:%x %d\n", type, len); - return ; - } -#endif /* CONFIG_CARL9170FW_DEBUG */ - - resp = (struct carl9170_cmd *) get_int_buf(); - if (unlikely(resp == NULL)) { - /* not very helpful for NON UART users */ - DBG("out of msg buffers\n"); - return ; - } - - resp->hdr.len = len; - resp->hdr.cmd = type; - resp->hdr.ext = ext; - - memcpy(resp->data, body, len); - usb_trigger_in(); -} - -/* Turn off ADDA/RF power, PLL */ -static void turn_power_off(void) -{ - set(AR9170_PHY_REG_ACTIVE, AR9170_PHY_ACTIVE_DIS); - set(AR9170_PHY_REG_ADC_CTL, 0xa0000000 | - AR9170_PHY_ADC_CTL_OFF_PWDADC | AR9170_PHY_ADC_CTL_OFF_PWDDAC); - - /* This will also turn-off the LEDs */ - set(AR9170_GPIO_REG_PORT_DATA, 0); - set(AR9170_GPIO_REG_PORT_TYPE, 0xf); - - set(AR9170_PWR_REG_BASE, 0x40021); - - set(AR9170_MAC_REG_DMA_TRIGGER, 0); - - andl(AR9170_USB_REG_DMA_CTL, ~(AR9170_USB_DMA_CTL_ENABLE_TO_DEVICE | - AR9170_USB_DMA_CTL_ENABLE_FROM_DEVICE | - AR9170_USB_DMA_CTL_UP_PACKET_MODE | - AR9170_USB_DMA_CTL_DOWN_STREAM)); - - /* Do a software reset to PTA component */ - orl(AR9170_PTA_REG_DMA_MODE_CTRL, AR9170_PTA_DMA_MODE_CTRL_RESET); - andl(AR9170_PTA_REG_DMA_MODE_CTRL, ~AR9170_PTA_DMA_MODE_CTRL_RESET); - - orl(AR9170_PTA_REG_DMA_MODE_CTRL, AR9170_PTA_DMA_MODE_CTRL_DISABLE_USB); - - set(AR9170_MAC_REG_POWER_STATE_CTRL, - AR9170_MAC_POWER_STATE_CTRL_RESET); - - /* Reset USB FIFO */ - set(AR9170_PWR_REG_RESET, AR9170_PWR_RESET_COMMIT_RESET_MASK | - AR9170_PWR_RESET_DMA_MASK | - AR9170_PWR_RESET_WLAN_MASK); - set(AR9170_PWR_REG_RESET, 0x0); - - clock_set(AHB_20_22MHZ, false); - - set(AR9170_PWR_REG_PLL_ADDAC, 0x5163); /* 0x502b; */ - set(AR9170_PHY_REG_ADC_SERIAL_CTL, AR9170_PHY_ADC_SCTL_SEL_EXTERNAL_RADIO); - set(0x1c589c, 0); /* 7-0 */ - set(0x1c589c, 0); /* 15-8 */ - set(0x1c589c, 0); /* 23-16 */ - set(0x1c589c, 0); /* 31- */ - set(0x1c589c, 0); /* 39- */ - set(0x1c589c, 0); /* 47- */ - set(0x1c589c, 0); /* 55- */ - set(0x1c589c, 0xf8); /* 63- */ - set(0x1c589c, 0x27); /* 0x24; 71- modified */ - set(0x1c589c, 0xf9); /* 79- */ - set(0x1c589c, 0x90); /* 87- */ - set(0x1c589c, 0x04); /* 95- */ - set(0x1c589c, 0x48); /* 103- */ - set(0x1c589c, 0x19); /* 0; 111- modified */ - set(0x1c589c, 0); /* 119- */ - set(0x1c589c, 0); /* 127- */ - set(0x1c589c, 0); /* 135- */ - set(0x1c589c, 0); /* 143- */ - set(0x1c589c, 0); /* 151- */ - set(0x1c589c, 0x70); /* 159- */ - set(0x1c589c, 0x0c); /* 167- */ - set(0x1c589c, 0); /* 175- */ - set(0x1c589c, 0); /* 183-176 */ - set(0x1c589c, 0); /* 191-184 */ - set(0x1c589c, 0); /* 199- */ - set(0x1c589c, 0); /* 207- */ - set(0x1c589c, 0); /* 215- */ - set(0x1c589c, 0); /* 223- */ - set(0x1c589c, 0); /* 231- */ - set(0x1c58c4, 0); /* 233- 232 */ - set(AR9170_PHY_REG_ADC_SERIAL_CTL, AR9170_PHY_ADC_SCTL_SEL_INTERNAL_ADDAC); -} - -static void disable_watchdog(void) -{ - if (!fw.watchdog_enable) - return; - - /* write watchdog magic pattern for suspend */ - andl(AR9170_PWR_REG_WATCH_DOG_MAGIC, 0xffff); - orl(AR9170_PWR_REG_WATCH_DOG_MAGIC, 0x98760000); - - /* Disable watchdog */ - set(AR9170_TIMER_REG_WATCH_DOG, 0xffff); -} - -void __noreturn reboot(void) -{ - disable_watchdog(); - - /* Turn off power */ - turn_power_off(); - - /* clean bootloader workspace */ - memset(&dma_mem, 0, sizeof(dma_mem)); - - /* add by ygwei for work around USB PHY chirp sequence problem */ - set(0x10f100, 0x12345678); - - /* Jump to boot code */ - jump_to_bootcode(); -} - -/* service USB events and re-enable USB interrupt */ -static void usb_handler(uint8_t usb_interrupt_level1) -{ - uint8_t usb_interrupt_level2; - - if (usb_interrupt_level1 & BIT(5)) - usb_data_in(); - - if (usb_interrupt_level1 & BIT(4)) - usb_reg_out(); - - if (usb_interrupt_level1 & BIT(6)) - usb_status_in(); - - if (usb_interrupt_level1 & BIT(0)) { - usb_interrupt_level2 = getb(AR9170_USB_REG_INTR_SOURCE_0); - - if (usb_interrupt_level2 & AR9170_USB_INTR_SRC0_SETUP) - usb_ep0setup(); - - if (usb_interrupt_level2 & AR9170_USB_INTR_SRC0_IN) - usb_ep0tx(); - - if (usb_interrupt_level2 & AR9170_USB_INTR_SRC0_OUT) - usb_ep0rx(); - - if (usb_interrupt_level2 & AR9170_USB_INTR_SRC0_ABORT) { - /* Clear the command abort interrupt */ - andb(AR9170_USB_REG_INTR_SOURCE_0, (uint8_t) - ~AR9170_USB_INTR_SRC0_ABORT); - } - - if (usb_interrupt_level2 & AR9170_USB_INTR_SRC0_FAIL || - fw.usb.ep0_action & CARL9170_EP0_STALL) { - /* - * transmission failure. - * stall ep 0 - */ - setb(AR9170_USB_REG_CX_CONFIG_STATUS, BIT(2)); - fw.usb.ep0_action &= ~CARL9170_EP0_STALL; - } - - if (usb_interrupt_level2 & AR9170_USB_INTR_SRC0_END || - fw.usb.ep0_action & CARL9170_EP0_TRIGGER) { - /* - * transmission done. - * set DONE bit. - */ - setb(AR9170_USB_REG_CX_CONFIG_STATUS, BIT(0)); - fw.usb.ep0_action &= ~CARL9170_EP0_TRIGGER; - } - } - - if (usb_interrupt_level1 & BIT(7)) { - usb_interrupt_level2 = getb(AR9170_USB_REG_INTR_SOURCE_7); - - if (usb_interrupt_level2 & AR9170_USB_INTR_SRC7_RX0BYTE) - usb_data_out0Byte(); - - if (usb_interrupt_level2 & AR9170_USB_INTR_SRC7_TX0BYTE) - usb_data_in0Byte(); - - if (usb_interrupt_level2 & AR9170_USB_INTR_SRC7_USB_RESET) { - usb_reset_ack(); - reboot(); - } - - if (usb_interrupt_level2 & AR9170_USB_INTR_SRC7_USB_SUSPEND) { - usb_suspend_ack(); - - fw.suspend_mode = CARL9170_HOST_SUSPENDED; - -#ifdef CONFIG_CARL9170FW_WOL - if (!(fw.usb.device_feature & USB_DEVICE_REMOTE_WAKEUP) || - !fw.wol.cmd.flags) { - disable_watchdog(); - - /* GO_TO_SUSPEND stops the CPU clock too. */ - orb(AR9170_USB_REG_MAIN_CTRL, AR9170_USB_MAIN_CTRL_GO_TO_SUSPEND); - } else { - wol_prepare(); - } -#else /* CONFIG_CARL9170FW_WOL */ - disable_watchdog(); - - /* GO_TO_SUSPEND stops the CPU clock too. */ - orb(AR9170_USB_REG_MAIN_CTRL, AR9170_USB_MAIN_CTRL_GO_TO_SUSPEND); -#endif /* CONFIG_CARL9170FW_WOL */ - } - - if (usb_interrupt_level2 & AR9170_USB_INTR_SRC7_USB_RESUME) { - usb_resume_ack(); - - fw.suspend_mode = CARL9170_HOST_AWAKE; - set(AR9170_USB_REG_WAKE_UP, 0); - - reboot(); - } - } -} - -void handle_usb(void) -{ - uint8_t usb_interrupt_level1; - - usb_interrupt_level1 = getb(AR9170_USB_REG_INTR_GROUP); - - if (usb_interrupt_level1) - usb_handler(usb_interrupt_level1); - - if (fw.usb.int_pending > 0) - usb_trigger_in(); -} - -void usb_timer(void) -{ -} |