diff options
Diffstat (limited to 'drivers/staging/westbridge/astoria/api/src/cyaslep2pep.c')
-rw-r--r-- | drivers/staging/westbridge/astoria/api/src/cyaslep2pep.c | 358 |
1 files changed, 0 insertions, 358 deletions
diff --git a/drivers/staging/westbridge/astoria/api/src/cyaslep2pep.c b/drivers/staging/westbridge/astoria/api/src/cyaslep2pep.c deleted file mode 100644 index 76821e51b81..00000000000 --- a/drivers/staging/westbridge/astoria/api/src/cyaslep2pep.c +++ /dev/null @@ -1,358 +0,0 @@ -/* Cypress West Bridge API source file (cyaslep2pep.c) -## =========================== -## Copyright (C) 2010 Cypress Semiconductor -## -## 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 "../../include/linux/westbridge/cyashal.h" -#include "../../include/linux/westbridge/cyasusb.h" -#include "../../include/linux/westbridge/cyaserr.h" -#include "../../include/linux/westbridge/cyaslowlevel.h" -#include "../../include/linux/westbridge/cyasdma.h" - -typedef enum cy_as_physical_endpoint_state { - cy_as_e_p_free, - cy_as_e_p_in, - cy_as_e_p_out, - cy_as_e_p_iso_in, - cy_as_e_p_iso_out -} cy_as_physical_endpoint_state; - - -/* -* This map is used to map an index between 1 and 10 -* to a logical endpoint number. This is used to map -* LEP register indexes into actual EP numbers. -*/ -static cy_as_end_point_number_t end_point_map[] = { - 3, 5, 7, 9, 10, 11, 12, 13, 14, 15 }; - -#define CY_AS_EPCFG_1024 (1 << 3) -#define CY_AS_EPCFG_DBL (0x02) -#define CY_AS_EPCFG_TRIPLE (0x03) -#define CY_AS_EPCFG_QUAD (0x00) - -/* - * NB: This table contains the register values for PEP1 - * and PEP3. PEP2 and PEP4 only have a bit to change the - * direction of the PEP and therefre are not represented - * in this table. - */ -static uint8_t pep_register_values[12][4] = { - /* Bit 1:0 buffering, 0 = quad, 2 = double, 3 = triple */ - /* Bit 3 size, 0 = 512, 1 = 1024 */ - { - CY_AS_EPCFG_DBL, - CY_AS_EPCFG_DBL, - },/* Config 1 - PEP1 (2 * 512), PEP2 (2 * 512), - * PEP3 (2 * 512), PEP4 (2 * 512) */ - { - CY_AS_EPCFG_DBL, - CY_AS_EPCFG_QUAD, - }, /* Config 2 - PEP1 (2 * 512), PEP2 (2 * 512), - * PEP3 (4 * 512), PEP4 (N/A) */ - { - CY_AS_EPCFG_DBL, - CY_AS_EPCFG_DBL | CY_AS_EPCFG_1024, - },/* Config 3 - PEP1 (2 * 512), PEP2 (2 * 512), - * PEP3 (2 * 1024), PEP4(N/A) */ - { - CY_AS_EPCFG_QUAD, - CY_AS_EPCFG_DBL, - },/* Config 4 - PEP1 (4 * 512), PEP2 (N/A), - * PEP3 (2 * 512), PEP4 (2 * 512) */ - { - CY_AS_EPCFG_QUAD, - CY_AS_EPCFG_QUAD, - },/* Config 5 - PEP1 (4 * 512), PEP2 (N/A), - * PEP3 (4 * 512), PEP4 (N/A) */ - { - CY_AS_EPCFG_QUAD, - CY_AS_EPCFG_1024 | CY_AS_EPCFG_DBL, - },/* Config 6 - PEP1 (4 * 512), PEP2 (N/A), - * PEP3 (2 * 1024), PEP4 (N/A) */ - { - CY_AS_EPCFG_1024 | CY_AS_EPCFG_DBL, - CY_AS_EPCFG_DBL, - },/* Config 7 - PEP1 (2 * 1024), PEP2 (N/A), - * PEP3 (2 * 512), PEP4 (2 * 512) */ - { - CY_AS_EPCFG_1024 | CY_AS_EPCFG_DBL, - CY_AS_EPCFG_QUAD, - },/* Config 8 - PEP1 (2 * 1024), PEP2 (N/A), - * PEP3 (4 * 512), PEP4 (N/A) */ - { - CY_AS_EPCFG_1024 | CY_AS_EPCFG_DBL, - CY_AS_EPCFG_1024 | CY_AS_EPCFG_DBL, - },/* Config 9 - PEP1 (2 * 1024), PEP2 (N/A), - * PEP3 (2 * 1024), PEP4 (N/A)*/ - { - CY_AS_EPCFG_TRIPLE, - CY_AS_EPCFG_TRIPLE, - },/* Config 10 - PEP1 (3 * 512), PEP2 (N/A), - * PEP3 (3 * 512), PEP4 (2 * 512)*/ - { - CY_AS_EPCFG_TRIPLE | CY_AS_EPCFG_1024, - CY_AS_EPCFG_DBL, - },/* Config 11 - PEP1 (3 * 1024), PEP2 (N/A), - * PEP3 (N/A), PEP4 (2 * 512) */ - { - CY_AS_EPCFG_QUAD | CY_AS_EPCFG_1024, - CY_AS_EPCFG_DBL, - },/* Config 12 - PEP1 (4 * 1024), PEP2 (N/A), - * PEP3 (N/A), PEP4 (N/A) */ -}; - -static cy_as_return_status_t -find_endpoint_directions(cy_as_device *dev_p, - cy_as_physical_endpoint_state epstate[4]) -{ - int i; - cy_as_physical_endpoint_state desired; - - /* - * note, there is no error checking here because - * ISO error checking happens when the API is called. - */ - for (i = 0; i < 10; i++) { - int epno = end_point_map[i]; - if (dev_p->usb_config[epno].enabled) { - int pep = dev_p->usb_config[epno].physical; - if (dev_p->usb_config[epno].type == cy_as_usb_iso) { - /* - * marking this as an ISO endpoint, removes the - * physical EP from consideration when - * mapping the remaining E_ps. - */ - if (dev_p->usb_config[epno].dir == cy_as_usb_in) - desired = cy_as_e_p_iso_in; - else - desired = cy_as_e_p_iso_out; - } else { - if (dev_p->usb_config[epno].dir == cy_as_usb_in) - desired = cy_as_e_p_in; - else - desired = cy_as_e_p_out; - } - - /* - * NB: Note the API calls insure that an ISO endpoint - * has a physical and logical EP number that are the - * same, therefore this condition is not enforced here. - */ - if (epstate[pep - 1] != - cy_as_e_p_free && epstate[pep - 1] != desired) - return CY_AS_ERROR_INVALID_CONFIGURATION; - - epstate[pep - 1] = desired; - } - } - - /* - * create the EP1 config values directly. - * both EP1OUT and EP1IN are invalid by default. - */ - dev_p->usb_ep1cfg[0] = 0; - dev_p->usb_ep1cfg[1] = 0; - if (dev_p->usb_config[1].enabled) { - if ((dev_p->usb_config[1].dir == cy_as_usb_out) || - (dev_p->usb_config[1].dir == cy_as_usb_in_out)) { - /* Set the valid bit and type field. */ - dev_p->usb_ep1cfg[0] = (1 << 7); - if (dev_p->usb_config[1].type == cy_as_usb_bulk) - dev_p->usb_ep1cfg[0] |= (2 << 4); - else - dev_p->usb_ep1cfg[0] |= (3 << 4); - } - - if ((dev_p->usb_config[1].dir == cy_as_usb_in) || - (dev_p->usb_config[1].dir == cy_as_usb_in_out)) { - /* Set the valid bit and type field. */ - dev_p->usb_ep1cfg[1] = (1 << 7); - if (dev_p->usb_config[1].type == cy_as_usb_bulk) - dev_p->usb_ep1cfg[1] |= (2 << 4); - else - dev_p->usb_ep1cfg[1] |= (3 << 4); - } - } - - return CY_AS_ERROR_SUCCESS; -} - -static void -create_register_settings(cy_as_device *dev_p, - cy_as_physical_endpoint_state epstate[4]) -{ - int i; - uint8_t v; - - for (i = 0; i < 4; i++) { - if (i == 0) { - /* Start with the values that specify size */ - dev_p->usb_pepcfg[i] = - pep_register_values - [dev_p->usb_phy_config - 1][0]; - } else if (i == 2) { - /* Start with the values that specify size */ - dev_p->usb_pepcfg[i] = - pep_register_values - [dev_p->usb_phy_config - 1][1]; - } else - dev_p->usb_pepcfg[i] = 0; - - /* Adjust direction if it is in */ - if (epstate[i] == cy_as_e_p_iso_in || - epstate[i] == cy_as_e_p_in) - dev_p->usb_pepcfg[i] |= (1 << 6); - } - - /* Configure the logical EP registers */ - for (i = 0; i < 10; i++) { - int val; - int epnum = end_point_map[i]; - - v = 0x10; /* PEP 1, Bulk Endpoint, EP not valid */ - if (dev_p->usb_config[epnum].enabled) { - v |= (1 << 7); /* Enabled */ - - val = dev_p->usb_config[epnum].physical - 1; - cy_as_hal_assert(val >= 0 && val <= 3); - v |= (val << 5); - - switch (dev_p->usb_config[epnum].type) { - case cy_as_usb_bulk: - val = 2; - break; - case cy_as_usb_int: - val = 3; - break; - case cy_as_usb_iso: - val = 1; - break; - default: - cy_as_hal_assert(cy_false); - break; - } - v |= (val << 3); - } - - dev_p->usb_lepcfg[i] = v; - } -} - - -cy_as_return_status_t -cy_as_usb_map_logical2_physical(cy_as_device *dev_p) -{ - cy_as_return_status_t ret; - - /* Physical EPs 3 5 7 9 respectively in the array */ - cy_as_physical_endpoint_state epstate[4] = { - cy_as_e_p_free, cy_as_e_p_free, - cy_as_e_p_free, cy_as_e_p_free }; - - /* Find the direction for the endpoints */ - ret = find_endpoint_directions(dev_p, epstate); - if (ret != CY_AS_ERROR_SUCCESS) - return ret; - - /* - * now create the register settings based on the given - * assigned of logical E_ps to physical endpoints. - */ - create_register_settings(dev_p, epstate); - - return ret; -} - -static uint16_t -get_max_dma_size(cy_as_device *dev_p, cy_as_end_point_number_t ep) -{ - uint16_t size = dev_p->usb_config[ep].size; - - if (size == 0) { - switch (dev_p->usb_config[ep].type) { - case cy_as_usb_control: - size = 64; - break; - - case cy_as_usb_bulk: - size = cy_as_device_is_usb_high_speed(dev_p) ? - 512 : 64; - break; - - case cy_as_usb_int: - size = cy_as_device_is_usb_high_speed(dev_p) ? - 1024 : 64; - break; - - case cy_as_usb_iso: - size = cy_as_device_is_usb_high_speed(dev_p) ? - 1024 : 1023; - break; - } - } - - return size; -} - -cy_as_return_status_t -cy_as_usb_set_dma_sizes(cy_as_device *dev_p) -{ - cy_as_return_status_t ret = CY_AS_ERROR_SUCCESS; - uint32_t i; - - for (i = 0; i < 10; i++) { - cy_as_usb_end_point_config *config_p = - &dev_p->usb_config[end_point_map[i]]; - if (config_p->enabled) { - ret = cy_as_dma_set_max_dma_size(dev_p, - end_point_map[i], - get_max_dma_size(dev_p, end_point_map[i])); - if (ret != CY_AS_ERROR_SUCCESS) - break; - } - } - - return ret; -} - -cy_as_return_status_t -cy_as_usb_setup_dma(cy_as_device *dev_p) -{ - cy_as_return_status_t ret = CY_AS_ERROR_SUCCESS; - uint32_t i; - - for (i = 0; i < 10; i++) { - cy_as_usb_end_point_config *config_p = - &dev_p->usb_config[end_point_map[i]]; - if (config_p->enabled) { - /* Map the endpoint direction to the DMA direction */ - cy_as_dma_direction dir = cy_as_direction_out; - if (config_p->dir == cy_as_usb_in) - dir = cy_as_direction_in; - - ret = cy_as_dma_enable_end_point(dev_p, - end_point_map[i], cy_true, dir); - if (ret != CY_AS_ERROR_SUCCESS) - break; - } - } - - return ret; -} |