1 # ====================================================================
7 # ====================================================================
8 #####ECOSGPLCOPYRIGHTBEGIN####
9 ## -------------------------------------------
10 ## This file is part of eCos, the Embedded Configurable Operating System.
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40 # ====================================================================
41 ######DESCRIPTIONBEGIN####
44 # Original data: bartv
48 #####DESCRIPTIONEND####
49 # ====================================================================
51 cdl_package CYGPKG_DEVS_USB_SA11X0 {
52 display "SA11X0 USB Device Driver"
53 include_dir "cyg/io/usb"
55 implements CYGHWR_IO_USB_SLAVE
56 doc ref/devs-usb-sa11x0.html
58 # Make sure that we are running on the right hardware.
59 requires CYGPKG_HAL_ARM
60 requires CYGPKG_HAL_ARM_SA11X0
64 The on-chip serial port 0 on the SA11X0 implements a USB
65 device controller, facilitating the use of this processor
66 in USB peripherals. This package provides a suitable eCos
70 cdl_option CYGFUN_DEVS_USB_SA11X0_EP0 {
71 display "Support the control endpoint 0"
72 default_value CYGINT_IO_USB_SLAVE_CLIENTS
73 # And the USB support packages
74 requires CYGPKG_IO_USB CYGPKG_IO_USB_SLAVE
76 compile -library=libextras.a usbs_sa11x0_data.cxx
78 Enable support for endpoint 0. If this support is disabled
79 then the entire USB port is unusable."
82 cdl_option CYGVAR_DEVS_USB_SA11X0_EP0_DEVTAB_ENTRY {
83 display "Provide a devtab entry for endpoint 0"
84 default_value CYGGLO_IO_USB_SLAVE_PROVIDE_DEVTAB_ENTRIES
87 If endpoint 0 will only be accessed via the low-level
88 USB-specific calls then there is no need for an entry
89 in the device table, saving some memory. If the
90 application intends to access the endpoint by means
91 of open and ioctl calls then a devtab entry is needed.
95 cdl_component CYGPKG_DEVS_USB_SA11X0_EP1 {
96 display "Support endpoint 1, used for host->slave communications"
97 implements CYGHWR_IO_USB_SLAVE_OUT_ENDPOINTS
98 requires CYGFUN_DEVS_USB_SA11X0_EP0
99 default_value CYGFUN_DEVS_USB_SA11X0_EP0
101 In the SA11X0 USB implementation endpoint 1 can only be
102 used for host->slave communication. If the intended application
103 only involves slave->host transfers then the support for
104 endpoint 1 can be disabled. Note that this does not affect
105 control messages which always go via endpoint 0."
107 cdl_option CYGNUM_DEVS_USB_SA11X0_EP1_DMA_CHANNEL {
108 display "Control DMA usage for endpoint 1"
113 In the SA11X0 USB implementation endpoint 1 only has
114 a 20-byte fifo. If the application only involves
115 small transfers then this may prove sufficient, but
116 for larger transfers the use of a DMA engine is
117 mandated. This configuration option allows the
118 use of DMA engine to be disabled or enabled, and the
119 specific DMA channel to be selected. The SA11X0
120 supports 6 DMA channels numbered 0 to 5. If DMA
121 is enabled for endpoint 1 then the selected channel
122 cannot be used by any other code."
125 cdl_option CYGVAR_DEVS_USB_SA11X0_EP1_DEVTAB_ENTRY {
126 display "Provide a devtab entry for endpoint 1"
127 default_value CYGGLO_IO_USB_SLAVE_PROVIDE_DEVTAB_ENTRIES
130 If endpoint 1 will only be accessed via the low-level
131 USB-specific calls then there is no need for an entry
132 in the device table, saving some memory. If the
133 application intends to access the endpoint by means
134 of open and read calls then a devtab entry is needed.
139 cdl_component CYGPKG_DEVS_USB_SA11X0_EP2 {
140 display "Support endpoint 2, used for slave->host communications"
141 implements CYGHWR_IO_USB_SLAVE_IN_ENDPOINTS
142 requires CYGFUN_DEVS_USB_SA11X0_EP0
143 default_value CYGFUN_DEVS_USB_SA11X0_EP0
145 In the SA11X0 USB implementation endpoint 2 can only be
146 used for slave->host communication. If the intended application
147 only involves host->slave transfers then the support for
148 endpoint 2 can be disabled. Note that this does not affect
149 control messages which always go via endpoint 0."
151 cdl_option CYGNUM_DEVS_USB_SA11X0_EP2_DMA_CHANNEL {
152 display "Control DMA usage for endpoint 2"
157 In the SA11X0 USB implementation endpoint 2 only has
158 a 16-byte fifo. If the application only involves
159 small transfers then this may prove sufficient, but
160 for larger transfers the use of a DMA engine is
161 mandated. This configuration option allows the
162 use of DMA engine to be disabled or enabled, and the
163 specific DMA channel to be selected. The SA11X0
164 supports 6 DMA channels numbered 0 to 5. If DMA
165 is enabled for endpoint 2 then the selected channel
166 cannot be used by any other code."
169 cdl_option CYGVAR_DEVS_USB_SA11X0_EP2_DEVTAB_ENTRY {
170 display "Provide a devtab entry for endpoint 2"
171 default_value CYGGLO_IO_USB_SLAVE_PROVIDE_DEVTAB_ENTRIES
174 If endpoint 2 will only be accessed via the low-level
175 USB-specific calls then there is no need for an entry
176 in the device table, saving some memory. If the
177 application intends to access the endpoint by means
178 of open and write calls then a devtab entry is needed.
183 cdl_option CYGDAT_DEVS_USB_SA11X0_DEVTAB_BASENAME {
184 display "Base name for devtab entries"
186 active_if { CYGVAR_DEVS_USB_SA11X0_EP0_DEVTAB_ENTRY ||
187 CYGVAR_DEVS_USB_SA11X0_EP1_DEVTAB_ENTRY ||
188 CYGVAR_DEVS_USB_SA11X0_EP2_DEVTAB_ENTRY
190 default_value { "\"/dev/usbs\"" }
192 If the SA11X0 USB device driver package provides devtab
193 entries for any of the endpoints then this option gives
194 control over the names of these entries. By default the
195 endpoints will be called \"/dev/usbs0c\", \"/dev/usbs1r\"
196 and \"/dev/usbs2w\" (assuming all three endpoints are
197 enabled. The common part \"/dev/usbs\" is determined
198 by this configuration option. It may be necessary to
199 change this if there are multiple USB slave-side
200 devices on the target hardware to prevent a name clash.