diff options
Diffstat (limited to 'drivers/usb/gadget/net2280.h')
| -rw-r--r-- | drivers/usb/gadget/net2280.h | 121 |
1 files changed, 110 insertions, 11 deletions
diff --git a/drivers/usb/gadget/net2280.h b/drivers/usb/gadget/net2280.h index a844be0d683a..a257516abbd6 100644 --- a/drivers/usb/gadget/net2280.h +++ b/drivers/usb/gadget/net2280.h @@ -6,6 +6,7 @@ /* * Copyright (C) 2002 NetChip Technology, Inc. (http://www.netchip.com) * Copyright (C) 2003 David Brownell + * Copyright (C) 2014 Ricardo Ribalda - Qtechnology/AS * * 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 @@ -14,6 +15,7 @@ */ #include <linux/usb/net2280.h> +#include <linux/usb/usb338x.h> /*-------------------------------------------------------------------------*/ @@ -59,13 +61,14 @@ set_idx_reg (struct net2280_regs __iomem *regs, u32 index, u32 value) #define CHIPREV_1 0x0100 #define CHIPREV_1A 0x0110 -#ifdef __KERNEL__ +/* DEFECT 7374 */ +#define DEFECT_7374_NUMBEROF_MAX_WAIT_LOOPS 200 +#define DEFECT_7374_PROCESSOR_WAIT_TIME 10 -/* ep a-f highspeed and fullspeed maxpacket, addresses - * computed from ep->num - */ -#define REG_EP_MAXPKT(dev,num) (((num) + 1) * 0x10 + \ - (((dev)->gadget.speed == USB_SPEED_HIGH) ? 0 : 1)) +/* ep0 max packet size */ +#define EP0_SS_MAX_PACKET_SIZE 0x200 +#define EP0_HS_MAX_PACKET_SIZE 0x40 +#ifdef __KERNEL__ /*-------------------------------------------------------------------------*/ @@ -85,12 +88,15 @@ struct net2280_dma { struct net2280_ep { struct usb_ep ep; + struct net2280_ep_regs __iomem *cfg; struct net2280_ep_regs __iomem *regs; struct net2280_dma_regs __iomem *dma; struct net2280_dma *dummy; + struct usb338x_fifo_regs __iomem *fiforegs; dma_addr_t td_dma; /* of dummy */ struct net2280 *dev; unsigned long irqs; + unsigned is_halt:1, dma_started:1; /* analogous to a host-side qh */ struct list_head queue; @@ -116,10 +122,19 @@ static inline void allow_status (struct net2280_ep *ep) ep->stopped = 1; } -/* count (<= 4) bytes in the next fifo write will be valid */ -static inline void set_fifo_bytecount (struct net2280_ep *ep, unsigned count) +static void allow_status_338x(struct net2280_ep *ep) { - writeb (count, 2 + (u8 __iomem *) &ep->regs->ep_cfg); + /* + * Control Status Phase Handshake was set by the chip when the setup + * packet arrived. While set, the chip automatically NAKs the host's + * Status Phase tokens. + */ + writel(1 << CLEAR_CONTROL_STATUS_PHASE_HANDSHAKE, &ep->regs->ep_rsp); + + ep->stopped = 1; + + /* TD 9.9 Halt Endpoint test. TD 9.22 set feature test. */ + ep->responded = 0; } struct net2280_request { @@ -135,23 +150,38 @@ struct net2280 { /* each pci device provides one gadget, several endpoints */ struct usb_gadget gadget; spinlock_t lock; - struct net2280_ep ep [7]; + struct net2280_ep ep[9]; struct usb_gadget_driver *driver; unsigned enabled : 1, protocol_stall : 1, softconnect : 1, got_irq : 1, - region : 1; + region:1, + u1_enable:1, + u2_enable:1, + ltm_enable:1, + wakeup_enable:1, + selfpowered:1, + addressed_state:1; u16 chiprev; + int enhanced_mode; + int n_ep; /* pci state used to access those endpoints */ struct pci_dev *pdev; struct net2280_regs __iomem *regs; struct net2280_usb_regs __iomem *usb; + struct usb338x_usb_ext_regs __iomem *usb_ext; struct net2280_pci_regs __iomem *pci; struct net2280_dma_regs __iomem *dma; struct net2280_dep_regs __iomem *dep; struct net2280_ep_regs __iomem *epregs; + struct usb338x_fifo_regs __iomem *fiforegs; + struct usb338x_ll_regs __iomem *llregs; + struct usb338x_ll_lfps_regs __iomem *ll_lfps_regs; + struct usb338x_ll_tsn_regs __iomem *ll_tsn_regs; + struct usb338x_ll_chi_regs __iomem *ll_chicken_reg; + struct usb338x_pl_regs __iomem *plregs; struct pci_pool *requests; // statistics... @@ -179,6 +209,43 @@ static inline void clear_halt (struct net2280_ep *ep) , &ep->regs->ep_rsp); } +/* + * FSM value for Defect 7374 (U1U2 Test) is managed in + * chip's SCRATCH register: + */ +#define DEFECT7374_FSM_FIELD 28 + +/* Waiting for Control Read: + * - A transition to this state indicates a fresh USB connection, + * before the first Setup Packet. The connection speed is not + * known. Firmware is waiting for the first Control Read. + * - Starting state: This state can be thought of as the FSM's typical + * starting state. + * - Tip: Upon the first SS Control Read the FSM never + * returns to this state. + */ +#define DEFECT7374_FSM_WAITING_FOR_CONTROL_READ (1 << DEFECT7374_FSM_FIELD) + +/* Non-SS Control Read: + * - A transition to this state indicates detection of the first HS + * or FS Control Read. + * - Tip: Upon the first SS Control Read the FSM never + * returns to this state. + */ +#define DEFECT7374_FSM_NON_SS_CONTROL_READ (2 << DEFECT7374_FSM_FIELD) + +/* SS Control Read: + * - A transition to this state indicates detection of the + * first SS Control Read. + * - This state indicates workaround completion. Workarounds no longer + * need to be applied (as long as the chip remains powered up). + * - Tip: Once in this state the FSM state does not change (until + * the chip's power is lost and restored). + * - This can be thought of as the final state of the FSM; + * the FSM 'locks-up' in this state until the chip loses power. + */ +#define DEFECT7374_FSM_SS_CONTROL_READ (3 << DEFECT7374_FSM_FIELD) + #ifdef USE_RDK_LEDS static inline void net2280_led_init (struct net2280 *dev) @@ -198,6 +265,9 @@ void net2280_led_speed (struct net2280 *dev, enum usb_device_speed speed) { u32 val = readl (&dev->regs->gpioctl); switch (speed) { + case USB_SPEED_SUPER: /* green + red */ + val |= (1 << GPIO0_DATA) | (1 << GPIO1_DATA); + break; case USB_SPEED_HIGH: /* green */ val &= ~(1 << GPIO0_DATA); val |= (1 << GPIO1_DATA); @@ -271,6 +341,17 @@ static inline void net2280_led_shutdown (struct net2280 *dev) /*-------------------------------------------------------------------------*/ +static inline void set_fifo_bytecount(struct net2280_ep *ep, unsigned count) +{ + if (ep->dev->pdev->vendor == 0x17cc) + writeb(count, 2 + (u8 __iomem *) &ep->regs->ep_cfg); + else{ + u32 tmp = readl(&ep->cfg->ep_cfg) & + (~(0x07 << EP_FIFO_BYTE_COUNT)); + writel(tmp | (count << EP_FIFO_BYTE_COUNT), &ep->cfg->ep_cfg); + } +} + static inline void start_out_naking (struct net2280_ep *ep) { /* NOTE: hardware races lurk here, and PING protocol issues */ @@ -305,4 +386,22 @@ static inline void stop_out_naking (struct net2280_ep *ep) writel ((1 << CLEAR_NAK_OUT_PACKETS), &ep->regs->ep_rsp); } + +static inline void set_max_speed(struct net2280_ep *ep, u32 max) +{ + u32 reg; + static const u32 ep_enhanced[9] = { 0x10, 0x60, 0x30, 0x80, + 0x50, 0x20, 0x70, 0x40, 0x90 }; + + if (ep->dev->enhanced_mode) + reg = ep_enhanced[ep->num]; + else{ + reg = (ep->num + 1) * 0x10; + if (ep->dev->gadget.speed != USB_SPEED_HIGH) + reg += 1; + } + + set_idx_reg(ep->dev->regs, reg, max); +} + #endif /* __KERNEL__ */ |