Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * omap_udc.h -- for omap 3.2 udc, with OTG support |
| 3 | * |
| 4 | * 2004 (C) Texas Instruments, Inc. |
| 5 | * 2004 (C) David Brownell |
| 6 | */ |
| 7 | |
| 8 | /* |
| 9 | * USB device/endpoint management registers |
| 10 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 12 | #define UDC_REV (UDC_BASE + 0x0) /* Revision */ |
| 13 | #define UDC_EP_NUM (UDC_BASE + 0x4) /* Which endpoint */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | # define UDC_SETUP_SEL (1 << 6) |
| 15 | # define UDC_EP_SEL (1 << 5) |
| 16 | # define UDC_EP_DIR (1 << 4) |
| 17 | /* low 4 bits for endpoint number */ |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 18 | #define UDC_DATA (UDC_BASE + 0x08) /* Endpoint FIFO */ |
| 19 | #define UDC_CTRL (UDC_BASE + 0x0C) /* Endpoint control */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | # define UDC_CLR_HALT (1 << 7) |
| 21 | # define UDC_SET_HALT (1 << 6) |
David Brownell | 6511108 | 2005-04-28 13:52:31 -0700 | [diff] [blame] | 22 | # define UDC_CLRDATA_TOGGLE (1 << 3) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | # define UDC_SET_FIFO_EN (1 << 2) |
| 24 | # define UDC_CLR_EP (1 << 1) |
| 25 | # define UDC_RESET_EP (1 << 0) |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 26 | #define UDC_STAT_FLG (UDC_BASE + 0x10) /* Endpoint status */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | # define UDC_NO_RXPACKET (1 << 15) |
| 28 | # define UDC_MISS_IN (1 << 14) |
| 29 | # define UDC_DATA_FLUSH (1 << 13) |
| 30 | # define UDC_ISO_ERR (1 << 12) |
| 31 | # define UDC_ISO_FIFO_EMPTY (1 << 9) |
| 32 | # define UDC_ISO_FIFO_FULL (1 << 8) |
| 33 | # define UDC_EP_HALTED (1 << 6) |
| 34 | # define UDC_STALL (1 << 5) |
| 35 | # define UDC_NAK (1 << 4) |
| 36 | # define UDC_ACK (1 << 3) |
| 37 | # define UDC_FIFO_EN (1 << 2) |
| 38 | # define UDC_NON_ISO_FIFO_EMPTY (1 << 1) |
| 39 | # define UDC_NON_ISO_FIFO_FULL (1 << 0) |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 40 | #define UDC_RXFSTAT (UDC_BASE + 0x14) /* OUT bytecount */ |
| 41 | #define UDC_SYSCON1 (UDC_BASE + 0x18) /* System config 1 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | # define UDC_CFG_LOCK (1 << 8) |
| 43 | # define UDC_DATA_ENDIAN (1 << 7) |
| 44 | # define UDC_DMA_ENDIAN (1 << 6) |
| 45 | # define UDC_NAK_EN (1 << 4) |
| 46 | # define UDC_AUTODECODE_DIS (1 << 3) |
| 47 | # define UDC_SELF_PWR (1 << 2) |
| 48 | # define UDC_SOFF_DIS (1 << 1) |
| 49 | # define UDC_PULLUP_EN (1 << 0) |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 50 | #define UDC_SYSCON2 (UDC_BASE + 0x1C) /* System config 2 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | # define UDC_RMT_WKP (1 << 6) |
| 52 | # define UDC_STALL_CMD (1 << 5) |
| 53 | # define UDC_DEV_CFG (1 << 3) |
| 54 | # define UDC_CLR_CFG (1 << 2) |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 55 | #define UDC_DEVSTAT (UDC_BASE + 0x20) /* Device status */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | # define UDC_B_HNP_ENABLE (1 << 9) |
| 57 | # define UDC_A_HNP_SUPPORT (1 << 8) |
| 58 | # define UDC_A_ALT_HNP_SUPPORT (1 << 7) |
| 59 | # define UDC_R_WK_OK (1 << 6) |
| 60 | # define UDC_USB_RESET (1 << 5) |
| 61 | # define UDC_SUS (1 << 4) |
| 62 | # define UDC_CFG (1 << 3) |
| 63 | # define UDC_ADD (1 << 2) |
| 64 | # define UDC_DEF (1 << 1) |
| 65 | # define UDC_ATT (1 << 0) |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 66 | #define UDC_SOF (UDC_BASE + 0x24) /* Start of frame */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | # define UDC_FT_LOCK (1 << 12) |
| 68 | # define UDC_TS_OK (1 << 11) |
| 69 | # define UDC_TS 0x03ff |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 70 | #define UDC_IRQ_EN (UDC_BASE + 0x28) /* Interrupt enable */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | # define UDC_SOF_IE (1 << 7) |
| 72 | # define UDC_EPN_RX_IE (1 << 5) |
| 73 | # define UDC_EPN_TX_IE (1 << 4) |
| 74 | # define UDC_DS_CHG_IE (1 << 3) |
| 75 | # define UDC_EP0_IE (1 << 0) |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 76 | #define UDC_DMA_IRQ_EN (UDC_BASE + 0x2C) /* DMA irq enable */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | /* rx/tx dma channels numbered 1-3 not 0-2 */ |
| 78 | # define UDC_TX_DONE_IE(n) (1 << (4 * (n) - 2)) |
| 79 | # define UDC_RX_CNT_IE(n) (1 << (4 * (n) - 3)) |
| 80 | # define UDC_RX_EOT_IE(n) (1 << (4 * (n) - 4)) |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 81 | #define UDC_IRQ_SRC (UDC_BASE + 0x30) /* Interrupt source */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | # define UDC_TXN_DONE (1 << 10) |
| 83 | # define UDC_RXN_CNT (1 << 9) |
| 84 | # define UDC_RXN_EOT (1 << 8) |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 85 | # define UDC_IRQ_SOF (1 << 7) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | # define UDC_EPN_RX (1 << 5) |
| 87 | # define UDC_EPN_TX (1 << 4) |
| 88 | # define UDC_DS_CHG (1 << 3) |
| 89 | # define UDC_SETUP (1 << 2) |
| 90 | # define UDC_EP0_RX (1 << 1) |
| 91 | # define UDC_EP0_TX (1 << 0) |
| 92 | # define UDC_IRQ_SRC_MASK 0x7bf |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 93 | #define UDC_EPN_STAT (UDC_BASE + 0x34) /* EP irq status */ |
| 94 | #define UDC_DMAN_STAT (UDC_BASE + 0x38) /* DMA irq status */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | # define UDC_DMA_RX_SB (1 << 12) |
| 96 | # define UDC_DMA_RX_SRC(x) (((x)>>8) & 0xf) |
| 97 | # define UDC_DMA_TX_SRC(x) (((x)>>0) & 0xf) |
| 98 | |
| 99 | |
| 100 | /* DMA configuration registers: up to three channels in each direction. */ |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 101 | #define UDC_RXDMA_CFG (UDC_BASE + 0x40) /* 3 eps for RX DMA */ |
David Brownell | 6511108 | 2005-04-28 13:52:31 -0700 | [diff] [blame] | 102 | # define UDC_DMA_REQ (1 << 12) |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 103 | #define UDC_TXDMA_CFG (UDC_BASE + 0x44) /* 3 eps for TX DMA */ |
| 104 | #define UDC_DATA_DMA (UDC_BASE + 0x48) /* rx/tx fifo addr */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | |
| 106 | /* rx/tx dma control, numbering channels 1-3 not 0-2 */ |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 107 | #define UDC_TXDMA(chan) (UDC_BASE + 0x50 - 4 + 4 * (chan)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | # define UDC_TXN_EOT (1 << 15) /* bytes vs packets */ |
| 109 | # define UDC_TXN_START (1 << 14) /* start transfer */ |
| 110 | # define UDC_TXN_TSC 0x03ff /* units in xfer */ |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 111 | #define UDC_RXDMA(chan) (UDC_BASE + 0x60 - 4 + 4 * (chan)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | # define UDC_RXN_STOP (1 << 15) /* enable EOT irq */ |
| 113 | # define UDC_RXN_TC 0x00ff /* packets in xfer */ |
| 114 | |
| 115 | |
| 116 | /* |
| 117 | * Endpoint configuration registers (used before CFG_LOCK is set) |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 118 | * UDC_EP_TX(0) is unused |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | */ |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 120 | #define UDC_EP_RX(endpoint) (UDC_BASE + 0x80 + (endpoint)*4) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | # define UDC_EPN_RX_VALID (1 << 15) |
| 122 | # define UDC_EPN_RX_DB (1 << 14) |
| 123 | /* buffer size in bits 13, 12 */ |
| 124 | # define UDC_EPN_RX_ISO (1 << 11) |
| 125 | /* buffer pointer in low 11 bits */ |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 126 | #define UDC_EP_TX(endpoint) (UDC_BASE + 0xc0 + (endpoint)*4) |
| 127 | /* same bitfields as in RX */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | |
| 129 | /*-------------------------------------------------------------------------*/ |
| 130 | |
| 131 | struct omap_req { |
| 132 | struct usb_request req; |
| 133 | struct list_head queue; |
| 134 | unsigned dma_bytes; |
| 135 | unsigned mapped:1; |
| 136 | }; |
| 137 | |
| 138 | struct omap_ep { |
| 139 | struct usb_ep ep; |
| 140 | struct list_head queue; |
| 141 | unsigned long irqs; |
| 142 | struct list_head iso; |
| 143 | const struct usb_endpoint_descriptor *desc; |
| 144 | char name[14]; |
| 145 | u16 maxpacket; |
| 146 | u8 bEndpointAddress; |
| 147 | u8 bmAttributes; |
| 148 | unsigned double_buf:1; |
| 149 | unsigned stopped:1; |
| 150 | unsigned fnf:1; |
| 151 | unsigned has_dma:1; |
| 152 | u8 ackwait; |
| 153 | u8 dma_channel; |
| 154 | u16 dma_counter; |
| 155 | int lch; |
| 156 | struct omap_udc *udc; |
| 157 | struct timer_list timer; |
| 158 | }; |
| 159 | |
| 160 | struct omap_udc { |
| 161 | struct usb_gadget gadget; |
| 162 | struct usb_gadget_driver *driver; |
| 163 | spinlock_t lock; |
| 164 | struct omap_ep ep[32]; |
| 165 | u16 devstat; |
David Brownell | 6511108 | 2005-04-28 13:52:31 -0700 | [diff] [blame] | 166 | u16 clr_halt; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | struct otg_transceiver *transceiver; |
| 168 | struct list_head iso; |
| 169 | unsigned softconnect:1; |
| 170 | unsigned vbus_active:1; |
| 171 | unsigned ep0_pending:1; |
| 172 | unsigned ep0_in:1; |
| 173 | unsigned ep0_set_config:1; |
| 174 | unsigned ep0_reset_config:1; |
| 175 | unsigned ep0_setup:1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | struct completion *done; |
David Brownell | e6a6e47 | 2006-12-10 11:47:04 -0800 | [diff] [blame] | 177 | struct clk *dc_clk; |
| 178 | struct clk *hhc_clk; |
| 179 | unsigned clk_requested:1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | }; |
| 181 | |
| 182 | /*-------------------------------------------------------------------------*/ |
| 183 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | #ifdef VERBOSE |
| 185 | # define VDBG DBG |
| 186 | #else |
| 187 | # define VDBG(stuff...) do{}while(0) |
| 188 | #endif |
| 189 | |
David Brownell | 0027492 | 2007-11-19 12:58:36 -0800 | [diff] [blame] | 190 | #define ERR(stuff...) pr_err("udc: " stuff) |
Arjan van de Ven | b6c6393 | 2008-07-25 01:45:52 -0700 | [diff] [blame^] | 191 | #define WARNING(stuff...) pr_warning("udc: " stuff) |
David Brownell | 0027492 | 2007-11-19 12:58:36 -0800 | [diff] [blame] | 192 | #define INFO(stuff...) pr_info("udc: " stuff) |
| 193 | #define DBG(stuff...) pr_debug("udc: " stuff) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | |
| 195 | /*-------------------------------------------------------------------------*/ |
| 196 | |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 197 | /* MOD_CONF_CTRL_0 */ |
| 198 | #define VBUS_W2FC_1510 (1 << 17) /* 0 gpio0, 1 dvdd2 pin */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 200 | /* FUNC_MUX_CTRL_0 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | #define VBUS_CTRL_1510 (1 << 19) /* 1 connected (software) */ |
| 202 | #define VBUS_MODE_1510 (1 << 18) /* 0 hardware, 1 software */ |
| 203 | |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 204 | #define HMC_1510 ((omap_readl(MOD_CONF_CTRL_0) >> 1) & 0x3f) |
| 205 | #define HMC_1610 (omap_readl(OTG_SYSCON_2) & 0x3f) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | #define HMC (cpu_is_omap15xx() ? HMC_1510 : HMC_1610) |
| 207 | |