Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * USB device controllers have lots of quirks. Use these macros in |
| 3 | * gadget drivers or other code that needs to deal with them, and which |
| 4 | * autoconfigures instead of using early binding to the hardware. |
| 5 | * |
David Brownell | 1c05ad4 | 2006-01-25 08:45:59 -0800 | [diff] [blame] | 6 | * This SHOULD eventually work like the ARM mach_is_*() stuff, driven by |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * some config file that gets updated as new hardware is supported. |
David Brownell | 1c05ad4 | 2006-01-25 08:45:59 -0800 | [diff] [blame] | 8 | * (And avoiding all runtime comparisons in typical one-choice configs!) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | * |
| 10 | * NOTE: some of these controller drivers may not be available yet. |
David Brownell | 7f9985c | 2007-05-08 21:01:30 -0700 | [diff] [blame] | 11 | * Some are available on 2.4 kernels; several are available, but not |
| 12 | * yet pushed in the 2.6 mainline tree. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | */ |
| 14 | #ifdef CONFIG_USB_GADGET_NET2280 |
| 15 | #define gadget_is_net2280(g) !strcmp("net2280", (g)->name) |
| 16 | #else |
| 17 | #define gadget_is_net2280(g) 0 |
| 18 | #endif |
| 19 | |
Thomas Dahlmann | 55d402d | 2007-07-16 21:40:54 -0700 | [diff] [blame] | 20 | #ifdef CONFIG_USB_GADGET_AMD5536UDC |
| 21 | #define gadget_is_amd5536udc(g) !strcmp("amd5536udc", (g)->name) |
| 22 | #else |
| 23 | #define gadget_is_amd5536udc(g) 0 |
| 24 | #endif |
| 25 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #ifdef CONFIG_USB_GADGET_DUMMY_HCD |
| 27 | #define gadget_is_dummy(g) !strcmp("dummy_udc", (g)->name) |
| 28 | #else |
| 29 | #define gadget_is_dummy(g) 0 |
| 30 | #endif |
| 31 | |
Philipp Zabel | 7a85762 | 2008-06-22 23:36:39 +0100 | [diff] [blame] | 32 | #ifdef CONFIG_USB_GADGET_PXA25X |
| 33 | #define gadget_is_pxa(g) !strcmp("pxa25x_udc", (g)->name) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | #else |
| 35 | #define gadget_is_pxa(g) 0 |
| 36 | #endif |
| 37 | |
| 38 | #ifdef CONFIG_USB_GADGET_GOKU |
| 39 | #define gadget_is_goku(g) !strcmp("goku_udc", (g)->name) |
| 40 | #else |
| 41 | #define gadget_is_goku(g) 0 |
| 42 | #endif |
| 43 | |
David Brownell | 7f9985c | 2007-05-08 21:01:30 -0700 | [diff] [blame] | 44 | /* SH3 UDC -- not yet ported 2.4 --> 2.6 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | #ifdef CONFIG_USB_GADGET_SUPERH |
| 46 | #define gadget_is_sh(g) !strcmp("sh_udc", (g)->name) |
| 47 | #else |
| 48 | #define gadget_is_sh(g) 0 |
| 49 | #endif |
| 50 | |
David Brownell | 7f9985c | 2007-05-08 21:01:30 -0700 | [diff] [blame] | 51 | /* not yet stable on 2.6 (would help "original Zaurus") */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | #ifdef CONFIG_USB_GADGET_SA1100 |
| 53 | #define gadget_is_sa1100(g) !strcmp("sa1100_udc", (g)->name) |
| 54 | #else |
| 55 | #define gadget_is_sa1100(g) 0 |
| 56 | #endif |
| 57 | |
| 58 | #ifdef CONFIG_USB_GADGET_LH7A40X |
| 59 | #define gadget_is_lh7a40x(g) !strcmp("lh7a40x_udc", (g)->name) |
| 60 | #else |
| 61 | #define gadget_is_lh7a40x(g) 0 |
| 62 | #endif |
| 63 | |
David Brownell | 7f9985c | 2007-05-08 21:01:30 -0700 | [diff] [blame] | 64 | /* handhelds.org tree (?) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | #ifdef CONFIG_USB_GADGET_MQ11XX |
| 66 | #define gadget_is_mq11xx(g) !strcmp("mq11xx_udc", (g)->name) |
| 67 | #else |
| 68 | #define gadget_is_mq11xx(g) 0 |
| 69 | #endif |
| 70 | |
| 71 | #ifdef CONFIG_USB_GADGET_OMAP |
| 72 | #define gadget_is_omap(g) !strcmp("omap_udc", (g)->name) |
| 73 | #else |
| 74 | #define gadget_is_omap(g) 0 |
| 75 | #endif |
| 76 | |
David Brownell | 7f9985c | 2007-05-08 21:01:30 -0700 | [diff] [blame] | 77 | /* not yet ported 2.4 --> 2.6 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | #ifdef CONFIG_USB_GADGET_N9604 |
| 79 | #define gadget_is_n9604(g) !strcmp("n9604_udc", (g)->name) |
| 80 | #else |
| 81 | #define gadget_is_n9604(g) 0 |
| 82 | #endif |
| 83 | |
David Brownell | 7f9985c | 2007-05-08 21:01:30 -0700 | [diff] [blame] | 84 | /* various unstable versions available */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | #ifdef CONFIG_USB_GADGET_PXA27X |
| 86 | #define gadget_is_pxa27x(g) !strcmp("pxa27x_udc", (g)->name) |
| 87 | #else |
| 88 | #define gadget_is_pxa27x(g) 0 |
| 89 | #endif |
| 90 | |
Haavard Skinnemoen | 55b3fd4 | 2007-06-14 18:01:45 +0200 | [diff] [blame] | 91 | #ifdef CONFIG_USB_GADGET_ATMEL_USBA |
| 92 | #define gadget_is_atmel_usba(g) !strcmp("atmel_usba_udc", (g)->name) |
Håvard Skinnemoen | 1f5b9cc | 2007-01-17 11:03:29 -0800 | [diff] [blame] | 93 | #else |
Haavard Skinnemoen | 55b3fd4 | 2007-06-14 18:01:45 +0200 | [diff] [blame] | 94 | #define gadget_is_atmel_usba(g) 0 |
Håvard Skinnemoen | 1f5b9cc | 2007-01-17 11:03:29 -0800 | [diff] [blame] | 95 | #endif |
| 96 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | #ifdef CONFIG_USB_GADGET_S3C2410 |
| 98 | #define gadget_is_s3c2410(g) !strcmp("s3c2410_udc", (g)->name) |
| 99 | #else |
| 100 | #define gadget_is_s3c2410(g) 0 |
| 101 | #endif |
| 102 | |
| 103 | #ifdef CONFIG_USB_GADGET_AT91 |
| 104 | #define gadget_is_at91(g) !strcmp("at91_udc", (g)->name) |
| 105 | #else |
| 106 | #define gadget_is_at91(g) 0 |
| 107 | #endif |
| 108 | |
David Brownell | 7f9985c | 2007-05-08 21:01:30 -0700 | [diff] [blame] | 109 | /* status unclear */ |
David Brownell | 91e79c9 | 2005-07-13 15:18:30 -0700 | [diff] [blame] | 110 | #ifdef CONFIG_USB_GADGET_IMX |
| 111 | #define gadget_is_imx(g) !strcmp("imx_udc", (g)->name) |
| 112 | #else |
| 113 | #define gadget_is_imx(g) 0 |
| 114 | #endif |
| 115 | |
Li Yang | d2eef1f | 2007-04-23 10:37:36 -0700 | [diff] [blame] | 116 | #ifdef CONFIG_USB_GADGET_FSL_USB2 |
| 117 | #define gadget_is_fsl_usb2(g) !strcmp("fsl-usb2-udc", (g)->name) |
| 118 | #else |
| 119 | #define gadget_is_fsl_usb2(g) 0 |
| 120 | #endif |
| 121 | |
David Brownell | 1c05ad4 | 2006-01-25 08:45:59 -0800 | [diff] [blame] | 122 | /* Mentor high speed function controller */ |
David Brownell | 7f9985c | 2007-05-08 21:01:30 -0700 | [diff] [blame] | 123 | /* from Montavista kernel (?) */ |
David Brownell | 1c05ad4 | 2006-01-25 08:45:59 -0800 | [diff] [blame] | 124 | #ifdef CONFIG_USB_GADGET_MUSBHSFC |
| 125 | #define gadget_is_musbhsfc(g) !strcmp("musbhsfc_udc", (g)->name) |
| 126 | #else |
| 127 | #define gadget_is_musbhsfc(g) 0 |
| 128 | #endif |
| 129 | |
David Brownell | 4279541 | 2006-04-02 10:18:34 -0800 | [diff] [blame] | 130 | /* Mentor high speed "dual role" controller, in peripheral role */ |
| 131 | #ifdef CONFIG_USB_GADGET_MUSB_HDRC |
| 132 | #define gadget_is_musbhdrc(g) !strcmp("musb_hdrc", (g)->name) |
David Brownell | 1c05ad4 | 2006-01-25 08:45:59 -0800 | [diff] [blame] | 133 | #else |
| 134 | #define gadget_is_musbhdrc(g) 0 |
| 135 | #endif |
| 136 | |
David Brownell | 7f9985c | 2007-05-08 21:01:30 -0700 | [diff] [blame] | 137 | /* from Montavista kernel (?) */ |
David Brownell | 1c05ad4 | 2006-01-25 08:45:59 -0800 | [diff] [blame] | 138 | #ifdef CONFIG_USB_GADGET_MPC8272 |
| 139 | #define gadget_is_mpc8272(g) !strcmp("mpc8272_udc", (g)->name) |
| 140 | #else |
| 141 | #define gadget_is_mpc8272(g) 0 |
| 142 | #endif |
| 143 | |
Yoshihiro Shimoda | 4cf2503 | 2007-05-10 13:18:23 +0900 | [diff] [blame] | 144 | #ifdef CONFIG_USB_GADGET_M66592 |
| 145 | #define gadget_is_m66592(g) !strcmp("m66592_udc", (g)->name) |
| 146 | #else |
| 147 | #define gadget_is_m66592(g) 0 |
| 148 | #endif |
| 149 | |
| 150 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | // CONFIG_USB_GADGET_SX2 |
| 152 | // CONFIG_USB_GADGET_AU1X00 |
| 153 | // ... |
| 154 | |
David Brownell | 91e79c9 | 2005-07-13 15:18:30 -0700 | [diff] [blame] | 155 | |
| 156 | /** |
| 157 | * usb_gadget_controller_number - support bcdDevice id convention |
| 158 | * @gadget: the controller being driven |
| 159 | * |
| 160 | * Return a 2-digit BCD value associated with the peripheral controller, |
| 161 | * suitable for use as part of a bcdDevice value, or a negative error code. |
| 162 | * |
| 163 | * NOTE: this convention is purely optional, and has no meaning in terms of |
| 164 | * any USB specification. If you want to use a different convention in your |
| 165 | * gadget driver firmware -- maybe a more formal revision ID -- feel free. |
| 166 | * |
| 167 | * Hosts see these bcdDevice numbers, and are allowed (but not encouraged!) |
| 168 | * to change their behavior accordingly. For example it might help avoiding |
| 169 | * some chip bug. |
| 170 | */ |
| 171 | static inline int usb_gadget_controller_number(struct usb_gadget *gadget) |
| 172 | { |
| 173 | if (gadget_is_net2280(gadget)) |
| 174 | return 0x01; |
| 175 | else if (gadget_is_dummy(gadget)) |
| 176 | return 0x02; |
| 177 | else if (gadget_is_pxa(gadget)) |
| 178 | return 0x03; |
| 179 | else if (gadget_is_sh(gadget)) |
| 180 | return 0x04; |
| 181 | else if (gadget_is_sa1100(gadget)) |
| 182 | return 0x05; |
| 183 | else if (gadget_is_goku(gadget)) |
| 184 | return 0x06; |
| 185 | else if (gadget_is_mq11xx(gadget)) |
| 186 | return 0x07; |
| 187 | else if (gadget_is_omap(gadget)) |
| 188 | return 0x08; |
| 189 | else if (gadget_is_lh7a40x(gadget)) |
| 190 | return 0x09; |
| 191 | else if (gadget_is_n9604(gadget)) |
| 192 | return 0x10; |
| 193 | else if (gadget_is_pxa27x(gadget)) |
| 194 | return 0x11; |
| 195 | else if (gadget_is_s3c2410(gadget)) |
| 196 | return 0x12; |
| 197 | else if (gadget_is_at91(gadget)) |
| 198 | return 0x13; |
| 199 | else if (gadget_is_imx(gadget)) |
| 200 | return 0x14; |
David Brownell | 1c05ad4 | 2006-01-25 08:45:59 -0800 | [diff] [blame] | 201 | else if (gadget_is_musbhsfc(gadget)) |
| 202 | return 0x15; |
| 203 | else if (gadget_is_musbhdrc(gadget)) |
| 204 | return 0x16; |
| 205 | else if (gadget_is_mpc8272(gadget)) |
| 206 | return 0x17; |
Haavard Skinnemoen | 55b3fd4 | 2007-06-14 18:01:45 +0200 | [diff] [blame] | 207 | else if (gadget_is_atmel_usba(gadget)) |
Håvard Skinnemoen | 1f5b9cc | 2007-01-17 11:03:29 -0800 | [diff] [blame] | 208 | return 0x18; |
Li Yang | d2eef1f | 2007-04-23 10:37:36 -0700 | [diff] [blame] | 209 | else if (gadget_is_fsl_usb2(gadget)) |
| 210 | return 0x19; |
Thomas Dahlmann | 55d402d | 2007-07-16 21:40:54 -0700 | [diff] [blame] | 211 | else if (gadget_is_amd5536udc(gadget)) |
| 212 | return 0x20; |
Yoshihiro Shimoda | 4cf2503 | 2007-05-10 13:18:23 +0900 | [diff] [blame] | 213 | else if (gadget_is_m66592(gadget)) |
Yoshihiro Shimoda | 598f22e | 2007-07-17 21:01:17 +0900 | [diff] [blame] | 214 | return 0x21; |
David Brownell | 91e79c9 | 2005-07-13 15:18:30 -0700 | [diff] [blame] | 215 | return -ENOENT; |
| 216 | } |
David Brownell | da741b8 | 2008-06-19 18:19:46 -0700 | [diff] [blame] | 217 | |
| 218 | |
| 219 | /** |
| 220 | * gadget_supports_altsettings - return true if altsettings work |
| 221 | * @gadget: the gadget in question |
| 222 | */ |
| 223 | static inline bool gadget_supports_altsettings(struct usb_gadget *gadget) |
| 224 | { |
| 225 | /* PXA 21x/25x/26x has no altsettings at all */ |
| 226 | if (gadget_is_pxa(gadget)) |
| 227 | return false; |
| 228 | |
| 229 | /* PXA 27x and 3xx have *broken* altsetting support */ |
| 230 | if (gadget_is_pxa27x(gadget)) |
| 231 | return false; |
| 232 | |
| 233 | /* SH3 hardware just doesn't do altsettings */ |
| 234 | if (gadget_is_sh(gadget)) |
| 235 | return false; |
| 236 | |
| 237 | /* Everything else is *presumably* fine ... */ |
| 238 | return true; |
| 239 | } |